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Your Local A/C Tune-Up Experts
Limited Time Offer: $50 Off Any A/C Tune-Up

Keep your system running efficiently all season long. Save $50 on any A/C tune‑up with CM Heating — professional preventative maintenance with no extra charge on weekends, and service that works around your schedule. Simply fill out the form below or give us a call (425) 259-0550 to save today!

Not valid with any other offer. Some restrictions may apply. Call for details.

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Residential A/C Tune-Up Services

An air conditioning tune-up is preventative maintenance that helps keep your cooling system running efficiently and reliably. During a tune-up, a professional technician inspects and cleans key components, checks system operation, and ensures everything is working as it should before peak cooling season.

Regular A/C tune-ups can improve energy efficiency, reduce the risk of breakdowns, extend the life of your system, and help maintain consistent comfort on hot days. Routine maintenance is especially important before summer, when your air conditioner works hardest.

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Why Choose CM Heating?

Having proudly served Snohomish County, WA for over 35 years, CM Heating is among the very top-rated HVAC contractors in Washington State. Recent awards include ABA Small Business of the Year (nationally), Inc. 5000 list of America's Fastest-Growing Companies (nationally), and Top Ductless Performance (5-state area; 6 years in a row; top 1% nationally in 2017). Additionally, we carry more 5-star reviews than any other heating/cooling contractor in the region.

We specialize in energy-efficient systems such as standard heat pumps and ductless heat pumps. We provide a combination of the best reputation, brands, warranties, craftsmanship, and price all backed by a 100% satisfaction guarantee. Call us today! You'll be glad you did.

4.9 out of 5 stars - 7955 votes

4.9 Stars (7955 Reviews)

See What Our Customers Are Saying

We just had Samir, Mark, Michael and John out to replace the water heater and install a GFCI outlet, they made sure to take care of us the same way the HVAC team did back in January. They wore booties, drop cloth on our floors, were so quick and efficient with their installation and did a bit of...
We just had Samir, Mark, Michael and John out to replace the water heater and install a GFCI outlet, they made sure to take care of us the same way the HVAC team did back in January. They wore booties, drop cloth on our floors, were so quick and efficient with their installation and did a bit of troubleshooting during the end. They communicated everything they were doing and any changes that needed to be made. The office communication from Brittny has been outstanding. We had our furnace venting and water heater venting replaced by Hagen and Aaron back in January 2026. They were also fantastic, quick, efficient, made sure to drop cloth our floors and wear booties in our home. The amount of effort and care this company puts into making sure the customer is happy is incredible. Something very tough to come by these days. CM has been honest, upfront and reliable. Your staff is remarkable and goes above and beyond. Keep these people around! -Two incredibly happy customers 😊

Amber Maddalena started the process walking through CM’s warranty on mini-split installation in our condo. They ended up being the lowest price and their 12 year parts and labor warranty was the best of any company we quoted (we got 4 quotes). Amber worked with me through the process (we were...
Amber Maddalena started the process walking through CM’s warranty on mini-split installation in our condo. They ended up being the lowest price and their 12 year parts and labor warranty was the best of any company we quoted (we got 4 quotes). Amber worked with me through the process (we were the first mini-split installation in our HOA community) meeting with the HOA and their engineer to ensure the system met all requirements. Amber was fantastic! The installation (an outdoor 30k heat pump, 2 each 6k indoor units in bedrooms and an 18k in the living room) was completed in a day. The installers were very professional and after completion both the HOA project manager and the engineer were very satisfied with the results. And we have a condo that is not sweltering anymore. I highly recommend CM.

I had an underfloor radiant heat system that constantly leaked. Sick of the repair bills, I checked reviews online and chose to call CM Heating to discuss options. After a few minutes on the phone, an appointment was set to meet with a Comfort Specialist the next morning. Despite driving an...
I had an underfloor radiant heat system that constantly leaked. Sick of the repair bills, I checked reviews online and chose to call CM Heating to discuss options. After a few minutes on the phone, an appointment was set to meet with a Comfort Specialist the next morning. Despite driving an hour and a half, Samir Khoury arrived precisely on time at my home. Friendly and knowledgeable, we talked about various options and after looking through the house, he made a recommendation to install a three zone mini-split heat pump. (I might add, this was on a Friday) He put together a quote on the spot, reviewed my electrical panel with his Electrician Manager who gave a thumbs up immediately, and went over everything with me. He told me that if I accepted the quote his team could install the next day, a Saturday. I talked to my wife and we agreed this was a good price and the right choice. Signing the approval online, we opted for a Monday installation instead of Saturday so we could be better prepared. On Monday, the permits were emailed to me right away and the installation team showed up and got to work. Friendly and efficient, the two installers plus an electrician, got the three mini-splits mounted exactly where I asked and the heat pump installed. This was a fast, efficient, and highly competent crew and my house has never been warmer or more comfortable. Thanks to Samir and the team at CM Heating, we are warm and now we will have AC this summer!

I am so happy after using CM Heating to replace our furnace & A/C! From the beginning they have exceeded my expectations. Chester during the initial visit & estimate was friendly, thorough, paid attention to our needs & concerns, and answered all of our questions. After scheduling the install...
I am so happy after using CM Heating to replace our furnace & A/C! From the beginning they have exceeded my expectations. Chester during the initial visit & estimate was friendly, thorough, paid attention to our needs & concerns, and answered all of our questions. After scheduling the install with a quick turnaround, CM Heating provided all the information I could hope for that walked me through the rest of the process. And Paul & Samir for the install were friendly & great, too! The job was completed faster than I had expected, looks excellent, and gives me so much confidence that our system will be one my family will enjoy for many years. Thank you!!

CM Heating & Cooling did an amazing job. They showed up right on time, got straight to work, and were in and out efficiently without cutting any corners. The crew was professional, respectful, and made sure everything was clean before they left. It’s rare to find a company that’s this reliable...
CM Heating & Cooling did an amazing job. They showed up right on time, got straight to work, and were in and out efficiently without cutting any corners. The crew was professional, respectful, and made sure everything was clean before they left. It’s rare to find a company that’s this reliable and easy to work with. Highly recommend them if you want the job done right the first time.

Absolutely the best service from scheduling/estimate/installation/carpentry. Totally impressed. Best group of employees ever. Would not go anywhere else. Thank you to all Also had duct cleaning-Keegan did a great job & discussed Smart thermostat & it’s many functions.
Davis was awesome, he took time to fully answer all of my questions and concerns. He was on time, Professional and pleasant. The install crew - Josh, Christian and Doroteo were friendly, professional and meticulous in the install of our new mini split AC system and plumbing the gas line for the...
Davis was awesome, he took time to fully answer all of my questions and concerns. He was on time, Professional and pleasant. The install crew - Josh, Christian and Doroteo were friendly, professional and meticulous in the install of our new mini split AC system and plumbing the gas line for the dryer. Very satisfied with the work and the cleanup! I will enthusiastically recommend CM to everyone I know!

CM heating completed a high-efficiency furnace replacement and installation of a new heat pump for us in July 2026. Planning, permits and turn-key installation was completed within only about 2 weeks from when we called. CM beat out two other companies in the bid; however, the final decision to...
CM heating completed a high-efficiency furnace replacement and installation of a new heat pump for us in July 2026. Planning, permits and turn-key installation was completed within only about 2 weeks from when we called. CM beat out two other companies in the bid; however, the final decision to move forward with CM was based more on technical aspects of the CM proposal which included specifications of proposed equipment, quiet operation, and right-sizing the system to our space. We have had no problems with the system (in air conditioning mode) in the first month. We paid the amount of the original bid without unexpected up charges. The smooth success of our installation may be attributed to clear communication and careful planning by our project manager, S. Khoury. He took great care in getting the technical details correct and communicating with us our needs. He even helped us get a significant rebate from our gas company for the heat-pump installation. I would recommend CM for your HVAC installations.

CM Heating techs Michael M. and Joseph M. arrived on time. They figured out the best way to reroute the PVC line so the water could drain without a condensation pump. The original setup with the condensation pump created an odd sound whenever the pump stopped running. Michael felt that there was...
CM Heating techs Michael M. and Joseph M. arrived on time. They figured out the best way to reroute the PVC line so the water could drain without a condensation pump. The original setup with the condensation pump created an odd sound whenever the pump stopped running. Michael felt that there was an issue within the drain line causing water to backfill into the pump, causing noise after it stopped running. I felt that Michael and Dan went the extra mile to help remedy the noise issue and did a fantastic job rerouting the PVC line. We ended up with a clean look, eliminating the PVC line in front of the coil panel, allowing for easy access. No more condensation pump, no more noise, and a clean look. Job well done! PS: I forgot to mention that Anderson C. arrived on time; he performed the yearly maintenance and did a fantastic job as well! Great teamwork! To CM Heating Staff and Techs, Thank You All!

Our AC went out right as the hot weather arrived. Thankfully, CM was able to come out the same day I called. The technician quickly diagnosed the problem—a failed capacitor—and had the replacement part stocked on the truck. Within 30 minutes, our system was back up and cooling again. I also...
Our AC went out right as the hot weather arrived. Thankfully, CM was able to come out the same day I called. The technician quickly diagnosed the problem—a failed capacitor—and had the replacement part stocked on the truck. Within 30 minutes, our system was back up and cooling again. I also appreciated that the technician noticed the failed part was still under warranty, which saved us some money. It's refreshing to work with a company that is honest, professional, and focused on doing the right thing for the customer. Thank you, CM, for the fast response and excellent service. We really appreciate it!

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Keeping You Comfortable
CM Heating Serves Our Community

Call or click today to schedule your a/c tune-up from Snohomish County's most trusted HVAC professionals.