Reviews

If you want an HVAC company that stands by its work, then you’ll want to go with Cardinal. They did a big job for us, and as with any big job, there were bumps in the road. Thanks to the team at Cardinal (most especially Dave and Tom), we were able to get back on track quickly. Also a big thank you to installers Drew and Luis. They were professional and efficient, and I have confidence in their work. Going above and beyond, Drew and Luis also did a very thorough quality control check after the installation. I appreciate that Cardinal has been open, honest, and responsive every step of the way. I would choose Cardinal again without hesitation and I would recommend them to my friends and family. It’s a company that has earned my trust.

Cardinal Heating replaced my 30+ year old furnace and added AC at a great price. Their team was awesome led by Jerrar Hayes and did an excellent job.

Appreciate the workers who have helped to install our new heater. We just had a visit by Jerrar - I appreciated his punctuality and good communication and sense of humor. Thank you!

Jerrar was amazing to work with! He went above and beyond to fix my furnace, working diligently to ensure everything was running smoothly before leaving. He took the time to explain the issues clearly, helping me understand what went wrong and what steps were needed to resolve it. His professionalism, attention to detail, and willingness to answer all my questions made the entire experience stress-free.

Always great service by Cardinal. Jarred was very courteous and friendly.

We have a 100+ year old Craftsman house and wanted to upgrade to a heat pump system. We had multiple bids which were unsettlingly all very different. Jonas from Cardinal was the most thorough and ended up recommending a hybrid system very different from the others. (Before I mention the quality of the work, I say want to say the system works extraordinarily well - the decision the accept the limitation of the 100 year old ducting system and work with it was brilliant.) We had the new heat pump system installed in July 2024 with a new ducted system for the second floor. The Cardinal installation team really did an excellent job. They were also very professional, and thoughtfully walked us through some of the installation issues and decisions we needed to make . Their daily cleanup was excellent. We are continually surprised by how well the systems works. We mostly wanted to use the system for the summers, particularly for the smoke events and weren't sure the cooling would be well distributed. But thanks to the suggestion by Josh that we wire up a switch to use the old gas furnace's fan in the summer, the cool air is distributed pretty well. And the heating effect is really wonderful. We had a post installation problem with leaking condensation causing some ceiling damage. Cardinal made good on the installation paying for the repairs continuing their excellent service. Cardinal is one of the best contractors we ever worked with - I can't recommend them highly enough!

I’m pleasant, precise, and diligent.

Turned out to be a complicated project to add heat pump. Our electric service was just adequate for the installation. The Cardinal team was great all around from Jonas and Dylan getting things set up to Luis, Luis, Terry and Drew on the install and fine tuning. Would highly recommend.

The technician was fast, friendly and professional .

Cardinal was professional from the start - meeting with the consultant to determine our needs - installation with guys courteous and respectful of our home using all means necessary to assure cleanliness as well as quality installation - immediate follow-up with our warranty and maintenance suggestions. We are extremely pleased with this new cooling and heating system and highly recommend Cardinal - a first class business.

Cardinal has been taking care of my furnace and AC for a number of years. They are easy to communicate with, on time, and do great work.

Great service by technicians and great products purchased & installed from national manufacturers.

Answered my questions and was friendly.

I had a great experience with Cardinal. From the first visit and bid to the quality assurance at the end, everything went smoothly. We had a two stage Mitsubishi heat pump and a water heater installed at the same time. The install took 2 days and all the workers were skilled and friendly.

Technician was prompt. Informative and worked efficiently. He went about his business in a professional manner. There was a discussion about re-doing the doors to make filter access better. He spent a good deal of time discussing options.

Very happy with the furnace replacement. Jonas was very knowledgeable and helped answer any questions/doubts I had. Jerrar performed the quality inspection post installation with a great attention to details.

Cardinal installed a Viessmann system that serves my radiant heat and provides on demand hot water ~7 years ago and did an fantastic job. I have the annual maintenance contract and have been really pleased with the level of service and the quality of their technicians. But yesterday was a stand out moment. David came and did the maintenance. He let me know next year I'll need to replace a part and told me how to integrate it into my annual service to make it more cost effective. And then I mentioned that we're building a small place on Orcas and looking for an efficient solution to heat and cool the space, as well as supply radiant and hot water in a fairly harsh environment that can have a big temperature range. Even though this won't necessarily benefit him or Cardinal, he texted me today with what looks like the perfect system from Steibel Eltron--and was super gracious about responding to and even doing further research on my follow up questions. So kind!!! Everyone--especially in the trades--is so busy these days. It feels exceptional to have such a great human-to-human moment. Big shout out to David. Thank you!

Appreciate Cardinal heating and air for sending out Jerrar to perform quality assurance on recently installed furnace and air conditioning unit. He found several things he would like to see done better. And although they seem minor to me, they’re important enough that he’s going to have his team come back out. Really appreciate the level of detail here. Would recognize Cardinal heating and air to anybody who is looking for a Great service and experience.

Cardinal Heating always does a great job. They are very thorough and check all systems.

I would recommend everyone in Seattle to use cardinal heating and air. Our representative, .Jerrrar Hayes Sr is incredible. The company has always offered wonderful and quick service!

Cardinal provides excellent service and professionalism! Dave, Zach and Brandon in the service dept are all extremely knowledgeable and courteous throughout the HVAC installation process and any subsequent visits to tweak our system. Highly recommend!

I just had a heat pump system installed by Cardinal Heating and Air. Dan and his team did an excellent job of installing the heat pump, reconfiguring my furnace and making sure everything was working perfectly. After all of that work, their clean-up was top notch. I would highly recommend this company and their products.

Kelly did a great job working on our wine room cooler. We really appreciate all the work Cardinal Heating has done for us in the past 27 years!!!!! Yes we highly recommend them!!!

Prompt service and a very friendly technician. Our system had a potential problem that was identified and taken care of quickly before we had a failure. Everything is working great and we have confidence that the service and inspection was very thorough.

I am very pleased with the product and installation of a new furnace/air conditioning system. The abliity and willingness of the instrallation team to accept my suggestions were superb. I had a tight schedule which the installation team met. Following the installation the cleanup was excellent as well.

We feel like this service rep did a very thorough job at our house.

Cardinal Heating & Air is the best. Always on time, a pleasure to be with and the servicing is always excellent

Prompt, friendly, knowledgeable

The technician (whose name I have forgotten—my bad) tuned up the system quickly, and then came upstairs to check its performance. He noticed that the settings seemed off—heating when it should have been cooling—and set it to automatic, and set the target temp. He also checked the actual temp at one of the air ducts with his thermometer to ensure it was at the desired temp. He had a pleasant manner.

Cardinal Heating is an excellent company to work with. The 3 things everyone looks for when working with a company are the 3 things I was impressed by with Cardinal Heating. Quick service, friendly staff, and reasonable pricing. I don't want any future HVAC needs but, when they do arise I'll definitely call Cardinal again.

Jonas sold a wonderful system at a reasonable price re-engineered it to our small house needs and Very nice to have my Heating system and air filters needs taken care of by our Kelly. From Cardinal Heating. It is Great to have one less household item to not have to worry about and have peace of mind. Julie & Gary

Cardinal has been servicing our system for the last five years. Sarah has done a great job of keeping our 30+ year old gas heating system and 20+ year old AC system operating as well as keeping us informed of what to expect in the future. Thanks, Cardinal.

We moved to having Cardinal Heating and Air service our radiant boiler system after to many problems and mistakes and outrageous bills with the original installer. Cardinal Heating and Air did a great job fixing the problems with the original system and when that boiler finally failed during the coldest part of winter, Cardinal Heating and Air was able to clearly explain everything that was done wrong in that first installation and put in a replacement system that addressed those problems. We have relied on them for annual maintenance for each of the two years since that installation and continue to be completely satisfied. Their pricing has been competitive, their work is professional and clean, and every employee of Cardinal Heating and Air that we have interacted with has been courteous, informative and transparent with everything. I highly recommend - don’t hesitate to give them a call!

Excellent, efficient service from friendly technicians.

We were very pleased with Cardinal's prompt response and quality of work. More than anything else they demonstrated a high level of transparency and trustworthiness. The prior company I worked with tried to sell me a new $30,000 system just because out unit had a dirty coil and was 12 years old. Our Cardinal technician confirmed that out equipment still likely had a number of years left on it, and only a minor bit of maintenance to replace a $50 part (which the prior company didn't do). Cardinal is now our go-to HVAC service provider.

Great service, on time, knowledgeable techs

Cardinal Heating just replaced my AC unit and they did a terrific job. Cardinal may not be the cheapest HVAC contractor but the customer service from the front desk, sales, scheduling, and the technicians have all been great. The installers even completed the job on the hottest day of the year with good humor and a smile.

We have worked with Cardinal for years. They are great to work with and communication is always easy. We love Kelly! Also, worked with Colin and Lorenzo last week- they were so nice and spent time answering all my questions with respect and patience. Thank you to the whole team!

We had an emergency situation in which we needed a new water heater as soon as possible. It got more complicated when we learned that having underfloor radiant heating made the replacement less simple than a regular heater. For a lot of the process we were out of town (this all happened while we were on vacation). They were able to come out right away pretty much as soon as we called. Tom was great at keeping us up to date on what was going on with getting the heater and communication in general. He very clearly and carefully explained to us why we needed the heater we needed and what our system was like. The estimate was super detailed and very clearly laid out all our options. When the techs came out they were professional and efficient. Jared did the installation with some help and advice from Daniel. Both of them answered all our questions and both of them were patient and had a great sense of humor. When they were finished they let us know in detail how everything in the new heater worked. The situation was no fun for us (on top of the new heater there was water damage and reconstruction etc) but everyone at cardinal made this portion of the process as easy and efficient as possible, including offering financing options. We wouldn’t hesitate to call again. Thank you to everyone at cardinal.

Zach F. came out and installed our heat pump system at our house. He and his crew did a phenomenal job. Zach was very professional, polite, and explained to us how to use our new system. The job only took a couple days which we were pleasantly surprised by. We were worried about our dogs getting in the way, but he loves dogs so there was no concern there. We've already recommended Zach and Cardinal to our neighbors who are currently shopping around.

Just wanted to take a moment to comment on the great service we have had with Cardinal over the 10+ years they have serviced our home. You can trust their quality of work, and their customer service is excellent. I’m not one to write reviews but after my last experience I felt I should….we had a scheduled routine service call, but had a different issue I told them about when they arrived. They adjusted their schedule to figure out the issue and then adjusted their schedule again to have the issue fixed the next day. They also dropped off space heaters within a couple of hours without being asked to do so. In the end, it wasn’t as big of a project as originally thought. They were very honest about it and didn’t do any work that was unnecessary. They could have done the larger job and I would never have known better. And again, without even asking all of my deposit was returned immediately. I would recommend Cardinal.

Cardinal Heating is the place for all your Air and heating needs. We have been very happy with the service. We had a new furnace, new water heater and air conditioning installed. When the compressor on the air conditioning unit failed they were quick to respond and helped us with getting it fixed quickly during the few hot weeks we have. James Turner the service manager is friendly and responsive. I would call them with any of our heating and air needs. Top Notch

We have used Cardinal on multiple homes with simple and complex systems. They provide exceptional customer service and communication, as well as being incredibly skilled. The team at Cardinal is always efficient at troubleshooting and providing repairs as well as install of new systems.

Tom Hoffman of Cardinal Heating spent a lot of time designing a new HVAC system that was right for our home. Brian, the installer, was professional and thorough. We are very happy with the price and performance of our new furnace and heat pump.

Great experience as always. Fair pricing, good service and knowledgeable staff… what else can you ask for.

Cardinal installed a mini split in our home and we couldn't be happier. Everyone from the rep who gave the estimate, CS via phone, and the install team were professional and courteous. Highly recommend.

I had 3 reputable companies provide bids on AC and heat installation. None were what you'd call inexpensive, but Cardinal's bid came in lowest with the best solution for my purposes. I have duct work only on the 3rd floor and radiant heating on the 1st and second floors, so it was not a straightforward job. In terms of the installation, the work was meticulous and well thought out. I didn't want conduit/conduit wires plastered all over the outside of my house, and inside, I didn't want the conduit to be obtrusive. (Solon, who came out to provide the estimate took my requirements into account in providing the estimate and outlining the work.) On both fronts, I would say the outcome is low profile. Further, Mike, who headed up the installation work, really cared about the quality of his work and he and his crew left the work areas clean every day. Both Solon and Mike were pleasant, good listeners and very easy to work with. Heat is working like a charm on all floors and I can't even hear the air coming out of the split. I am looking forward to experiencing AC this summer. Overall, I recommend Cardinal for their customer-orientation/service and quality work.

Cardinal replaced our oil furnace with new HVAC at our home and replaced a gas furnace with HVAC in one unit of our duplex and added a mini split in another unit that only had wall heat. Everything went perfectly with all three installations. All of the employees were respectful of the properties and took great care not to disturb us or my tenants anymore than absolutely needed. At the initial visits Tom spent a lot of time to explain all of our options and what would be the best choice for our situations in great detail that a normal person could understand. We got several bids and there may have been one that was less but it wasn’t exactly an apples to apples choice. We were convinced that Cardinal would deliver tge best results and they did just that. I cannot recommend them enough and anyone needing HVAC services can’t go wrong choosing them.

I can’t recommend Cardinal Heating and Air highly enough. On a scale of 1-10, 11. I’ve now had Cardinal do two different projects for me. I selected their bid for a new two zone heat pump in one part of my house and then, shortly after and completely unrelated, my main furnace went out. Thankfully the timing was right and they had a slot to uninstall my old and install a new high efficiency gas furnace in very short order. I was very impressed that even though they were quite busy and I was originally booked out months ahead, when the time came, they came out on time as planned. An unexpected noise issue from where the heat pump compressor was mounted and some hidden plumbing in a kitchen wall added to the length and difficulty of the project but never did I lose confidence that they wouldn’t quit till I was completely satisfied. All the way from Jonas who bid the job and has years of experience, to Jacob who did most of the quality work and to Lindsey who was my, kind, fair, ever present, internal coordinator, each person was very professional and took pride in the final quality of my job. I feel very lucky to have found Cardinal Heating and Air and am very happy to provide this review.

We wanted to replace our gas furnace with a more efficient and climate-conscious ducted heat pump system. Of the five competitive bids we reviewed, Cardinal was far and away the best. They weren't the lowest bid, but our consultant, Jonas, went above and beyond to find the right system for our home and answer any and all questions we had throughout the process. Our site inspector, Josh, and our installers, Zach and Isaac, were all courteous, punctual, and efficient. And Tori, our scheduling and billing rep, kept us up to date about everything. An expensive and potentially stressful home upgrade was buttery smooth and painless. Would/will recommend; would/will definitely work with them in the future!

20 yrs ago we launched a turkey fundraiser, within the Chelan County PUD, to help needy families in the Wenatchee Valley so they may have a turkey for the holidays. The first year we raised enough for 250 turkeys. A person within the fundraising group, Art Bainard, passed away one fall, so our group decided to have a golf tournament in his honor. It started with 25 players, then soon boomed to 100 players the next year. The year before Covid, and thanks to Cardinal Heating, we raised enough money to buy 900 turkeys. This year we had 120 players and the golf tourney raised $5000 towards the Art Bainard Turkey Fund. We will continue to have the tourney each fall for this great cause. Thank you, Cardinal Heating for helping us again this year, to help the needy families of our valley and surrounding area. Sincerely Randy Alexander Golf tournament organizer

Had Cardinal upsize my gas line for the newly installed fireplace, big job in tight spaces. The original gas line installation was comical, loosely secured running over the top of ducting, and more. The tech they sent was very professional, knowledgeable and personable. Cardinal's attention to detail and pride in their work clearly showed. In addition, he pointed out issues with my ducting (also comical) and as expected, offered to take care of it as any business would do. Then, to my surprise, he went on to share with me how I could take care of it myself if cost was an issue, amazing customer service. I highly recommend Cardinal and they will be my go-to for all of my future heating and cooling needs. Terry L.

Wonderful experience with Cardinal Heating. Professional crew came and installed our new HVAC system, explained our new thermostat and answered any questions we had. Will use them again!

Cardinal Heating and Air did a wonderful job on our heating and air system. Their install crew was professional and answered any questions. I would highly recommend them to anyone who asked me who my go to was for AC and heating.

My wife and I had a new HVAC system installed in our house 6 years ago by Cardinal and we received a great price and the installing technicians were professional and performed the install in the timely manor. I do not typically write many reviews but, just recently our HVAC system was in need of service and Cardinal was able to fit us in their schedule and our system is running great again. Great job Cardinal!

Cardinal was professional from the start - meeting with the consultant to determine our needs - installation with guys courteous and respectful of our home using all means necessary to assure cleanliness as well as quality installation - immediate follow-up with our warranty and maintenance suggestions. We are extremely pleased with this new cooling and heating system and highly recommend Cardinal - a first class business.

Our family business has used Cardinal for 20 years and they've always been fast and fair. Truly a pleasure to work with!

The people here are very helpful! We had a customer with a specific need of removal of their HVAC system because of water damage in their home. The Good people at Cardnal reacted right away and helped our customer who was thrilled with their customer service 😊

Over the last couple of years, we had been crossing our fingers every time we first turned on our furnace in the Fall. We figured we were running on borrowed time. The Cardinal team did a fantastic job replacing our 30-year-old furnace with a high efficiency furnace and the first-time installation of air conditioning in our house. The entire process was impressive, from Jonas coming out to providing a competitive bid to the installers, Mike and Cody, knocking this work out in two days. Mike and his team were courteous, their finished installation is impeccable, they left the place better than they found it and the price was very competitive with other companies we had bid. The Cardinal office staff is awesome, they kept me informed and up to date as we approached the installation date. We are thoroughly enjoying the few remaining hot days of summer with our new A/C and look forward to having reliable heating this winter. We highly recommend Cardinal Heating!

I’ve been using Cardinal for several years and they are always nice, professional and easy to work with. They’ve done a great job for us!!

My AC died during the heat wave last year, while working with Tom to decide on a replacement for my 20 y/o system I mentioned some issues I wanted addressed. A year later with another heat wave, I'm glad we made the changes as it made this summer more bearable. The entire team from start to finish was very friendly, responsive and professional.

Customer for over 20 years -- would recommend. Cardinal Heating & Air is consistent and responsive and their people know what they're doing, across sales and new installation and (most importantly!) service. Wow, their service is *strong*.

From beginning to end, our experience with Cardinal and their people has been really great. Highly recommended!

Love this company! We always went through another company but this time we called Cardinal Heating. Reason was that our a/c decided to go on a permanent vacation at the beginning of the heat wave! On a Friday, I called our company and they couldn't schedule us until Monday! We made the appt to "get in line" . I called Cardinal Heating as you were the first company listed. They had someone come to our house that same day! Impressed, I'd say!

We can’t say enough positive things about Cardinal for coming to the rescue when our AC broke down on a 100 degree day and every other company was weeks out on service with no alternative! Jeff was so understanding and willing to put us on a wait list and just hours later Tony called and was on the way to save us from enduring the heat wave without AC! Thank you, thank you, thank you! From your prompt and professional response to your thorough inspection and communication we appreciate knowing we have an HVAC company we can count on!! 10 Stars!!!

Great group.

Professional and punctual. However they have still not corrected a problem that they caused over 2 years ago. After posting this review 3 months ago, the owner responded 2 months later to indicate that he would have his Service Manager reach out to me to resolve the issue. Now, 1 months later, I have still not received a call to resolve this issue.

They installed my heating system 7 yeard ago and it's been flawless.

New to Bellevue, needed HVAC serviced and a/c checked. Efficient to book, courteous and professional. My go to for all heating and a/c going forward.

We are very pleased with every aspect of Cardinal's services. Our courteous and knowledgable technician Quincy, consistently does an excellent and very thorough job!

Cardinal is the best!! Professional and competitively priced. We won’t use anyone else.

Cardinal Heating has been great. The technician was very professional and informative.

Absolutely outstanding technicians. Dispatchers go the extra mile to keep customers informed and up-to-date. I have absolutely no complaints.

They sent a repair tech out as soon as they could. He arrived on time, identified and fixed the problem quickly and with a good attitude.

I have used to many furnace/AC maintenance companies. After discovering Cardinal I will never go elsewhere. Jeff the technician showed up on time, was fast, honest and he fixed our AC which had been abandoned for years by previous maintenance company. The office folks were sharp, friendly and I could just tell they are a seasoned company with great ethics and skilled technicians. They are my new go to company!

Cardinal has always been excellent with service, knowledge and professionalism. Recent call was all of that - brought me up to date on new thermostat and recommendations based on my equipment. Did a thorough job and was on his way. I highly recommend working Cardinal.

I have had an extremely positive relationship with Cardinal over the past 16 years at three different houses including regular maintenance for forced air H/C and hot-water radiant, minor forced air H/C repairs, warranty repairs, and end-of-life replacement. Their staff has been easy to schedule, prompt, courteous and thorough. I will continue to use them for my needs.

Cardinal was the only company that I called that promptly called me back. Their tech arrived quickly and took care of our furnace. The tech was really friendly and efficient. I highly recommend them if you have any kind of heating issues.

Cardinal was very professional and diligent in trying to address a rather complicated heating issue. Communication was great, including reminders as to upcoming service. A great company!

Great job by Kelly as usual,

These guys are a pleasure to work with. They showed up on time and explained everything they were doing. They also answered all the questions i had.They were very professional and knowledgeable. They did a remarkable job and am glad i chose to work with them.Would definitely recommend them.

Reliable, dependable, knowledgeable and personable!! We've had the same technician the last two years. He is terrific and does an excellent job!! We feel very confident that everything is great and taken care of after he has been here. I recommend them highly!!

Cardinal has a work ethic that exceeds the norm. What they provide, beyond heating and cooling comfort, is educating their clients with knowledge of *how* their systems work. I will continue to recommend them highly. Quincy stands out as a stalwart technician.

Jeff and his protege were able to service my 19-year old Viessman boiler and clean it even though it was a first experience. Very happy with the work they did.

Quincy, is always on time. Polite, Professional and thorough.

Was very pleased ,Robin gave a heads up when they would be arriving..I would recommend your company .The unit is leaking again and not turned on the heat! Do not understand why !!!!

Always reliable service! Appreciate that David always takes the time to explains things so we can understand all the facets of our heating and air-conditioning devices.

Have used Cardinal Heating at both of my houses, one in King County and one in Kitsap. They are in my opinion the best HVAC company in all of the Puget Sound area. They are prompt, efficient, and do the job right every time, unlike other companies I have used in the past.

We had had a lot of issues with our regular HVAC repair outlet, and this time when our heat pump failed, Cardinal Heating & Air was recommended to us by a friend. So, we called them, and they were here the next day. Having some technical background, I could immediately see the superior skill and professionalism of the technician. It turned out that we had a very unusual problem. The discharge temperature sensor was loose and had rubbed against the refrigerant tube over the years, eventually creating a hole and letting out all the refrigerant (Freon in our case). After realizing that all of the refrigerant was gone, the technician very quickly found the leak, and we had air conditioning the next day. Every subsequent call or email, whether it had to do with Carrier warranty on parts, with Cardinal's maintenance agreement or with other financial matters, was answered immediately in a very professional and transparent way. I highly recommend Cardinal Heating & Air in the Seattle area.

My experience with Cardinal Heating was excellent in all ways. he representatives and workers were all professional and pleasant, and I am very pleased with my air conditioner.

Quincy is very knowledgable and professional about water heaters.

Cardinal Heating and Air has been servicing our furnace and air conditioner for many years. They are dependable, responsive, and have excellent customer service. Highly recommend!

I needed to replace my hot water heater due to age and my A/C was not working correctly. They were able to quickly and professionally replace the tank as well as resolve the A/C issues in a minimal amount of time. Everything is working great and there were no issues with installation. The technician was friendly and knowledgeable.

These guys rescued us. We had a bad install of a ductless AC system from another company. Cardinal came in, assessed the problems and corrected all the issues. They were professional from start to finish. The repairs required more than one appointment and each time we got a call before hand as a reminder and a call when the tech was on his way. John was our technician. He was professional, efficient , personably and took care of all the issues. We will use them again for heating/ cooling issues and I can highly recommend this company

Very professional! Easy to book. On time. Nice technician.

Efficient and thorough service.

We have a heating/cooling system that is somewhat complicated and Cardinal did an amazing job at figuring out what was the issue. Quincy was professional, meticulous and very knowledgeable. I highly recommend Cardinal Heating & Air.

These folks are consummate pros. After hours emergency service is swift and careful. Front office looks out for customers' satisfaction.

Always honest, straightforward, efficient. Excellent work at fair prices. You could not ask more from a local company.