Providing Comfort For Over 40 Years
Your Heating & Cooling Experts.
Proudly Serving King, Pierce, and Snohomish Counties!

Service & Maintenance

Keep your system safe and efficient through maintenance:

24/7 Emergency Service
Service ALL Brands & Equipment
Duct Cleaning


Find a full range of heating, cooling, and air quality systems including:


Meet with our friendly, expert consultants available by appointment:

Heat Loss Calculation
Home Comfort Assessment
Written Options

MM Comfort Systems provides heating and air conditioning experts for Seattle, Bellevue, Tacoma, Redmond, and the greater Puget Sound area!

Professional maintenance is essential to keeping your home comfort system operating safely and efficiently. To this end, we offer several services to improve the life and quality of your heating and air conditioning equipment.
Check to see if we service your area!

COVID-19 Update: Our staff has participated in Covid-19 Safety & Health Awareness training by the National Institute of Environmental Health Sciences. We are taking recommended precautionary measures for the safety of our employees and customers. #WeGotThisSeattle
Special Offers
Save up to $1,700
Beat the summer heat at home for a low cost! Save up to $1,700 on on qualifying Carrier Air Conditioners, Heat Pumps or Ductless Systems during our pre-season cooling sale.
Sale Ends 6/30/2021

Sales date ends June 30th.
The promotion applies to qualified Carrier Air Conditioners, Heat Pumps and Ductless Heat Pumps only.
Not combinable with other retail offers or promotions.
Discount example: 25VNA460A & Infinity Controls

Why Choose MM Comfort Systems?

The reason we keep our customers for life is because of the way we conduct our business.
Keeping people comfortable in their homes since 1977
Experts in all facets of HVAC: design, installation & service
NATE Certified Technicians and ongoing industry standard training
Background screened and drug tested employees
Shoe coverings, dropcloths and clean jobsites
Quality installations that exceed industry standards
Proven HVAC products from industry leaders
5 year labor warranty on all new equipment
Employees empowered to do the right thing
Review ratings that lead the industry
Follow up calls after every install
We do all we can to discover and deliver on your expectations
Your Local Home Comfort Specialist

At MM Comfort Systems, we want you to spend time enjoying all the things that make your home, home, and WE’LL make sure it’s comfortable for everyone who’s there. We asked our customers what “home” means to them, watch what they have to say.

Our Accreditations

ACCA Quality Assurance Accredited
Snohomish Registered Trade Ally
Snohomish County
North American Technician Excellence Certified
NATE award
Accreditated Business
MM Comfort Systems BBB Business Review
A Rating Angie's List
Angie's List
Angie's List Super Service Award
Read our real customer reviews below!
Veeraiah Chowdary Nuvvula
Veeraiah Chowdary Nuvvula
14:26 18 Sep 21
We recently had MM Comfort Systems install AC on our home and Dan and Brook did a super job . They took their time and answered all our questions.Highly recommend MM.Peter
Peter Schuitemaker
Peter Schuitemaker
20:52 17 Sep 21
Loved the experience with MM Comfort Systems. Randall & Clinton were here ahead of time and just went about getting the work done. There was a slight change in plan but they figured out the best way to hook up the AC, walked me through the work at the end of it, answered all my questions patiently, thank you for that.Post installation Hannah, from MM, took care of registering the products, which doubled the warranty and also helped me schedule the inspections with the city. The city official was also extremely happy with the work, gave a big thumbs up. Thank you all at MM, keep doing the great work.
Ramakrishnan CP
Ramakrishnan CP
20:25 17 Sep 21
Ruslan and Dallas did a great job!
Jonathan Elkin
Jonathan Elkin
17:04 16 Sep 21
Professional and great to work with!
Sherry Maust
Sherry Maust
21:36 13 Sep 21
When I wanted to replace my furnace and install AC, I ended up working with MM Comfort Systems through Costco. The initial consultation was quick but thorough, and I appreciated how the representative presented me with multiple options while explaining details of each plan. They provided a competitive quote, and were quick & professional throughout the processing of the contract, permits, and payments. Tyler & Ryan came onsite exactly on time, and ready with everything that they needed to get on with the installation. Since they seemed knowledgeable enough about my particular install, I trusted them enough to leave them to it while I got on with my business. In no time, the installation had been completed, and I've yet to experience any issues with my new system. Overall great service.
17:55 10 Sep 21
We used MM Comfort systems for updating furnace and heater as well as installing an AC at our place. Todd was great during the consultation stage, he walked us through several options and suggested improvements to our ductwork to maximize efficiency. He was not sales-y at all and we did not feel any pressure with him unlike a few other vendors.The installation date itself had to be pushed out since MM Comfort systems did not have the equipment at hand but that is understandable during Covid.Adam and Marc were our installers who did a great job with the installation. They tried to build additional duct work which we had discussed with Todd but stopped short when they realized it was not technically possible to do so. They informed us of our choices at each stage.Overall in spite of some hiccups, they were professional and efficient. I would recommend them to others.
Deep Patel
Deep Patel
04:20 10 Sep 21
Had an excellent experience with MM Comfort Systems with a recent a/c and hot water heater installation. The sales rep was professional, informative and answered all my many questions. I never felt rushed and he was not pushy at all. Tyler and Ryan, the installers did a great job and were friendly and informative as well. I highly recommend MM Comfort Systems for any of your future needs.
J E Snatic
J E Snatic
22:45 08 Sep 21
I was very impressed with MM Comfort systems from Sales through Installation of my Gas Furnace and Water Heater. Branden in Sales was friendly, knowledgeable and available for my text questions. The installation was a breeze with Tyler & Ryan who were very professional and left the area clean. I'm very happy with the service of this company and highly recommend them.
Cathy Schunzel
Cathy Schunzel
21:18 08 Sep 21
Great job really nice and friendly
Kenny Li
Kenny Li
18:33 13 Aug 20
Installed a heat pump with MM Comfort Systems for central air in the summer and significant heat savings in the winter (we estimate over $1500 a winter in propane savings). They were in an out in a day unobtrusive, professional, gave me great options and far better equipment for the same price as other quotes I'd recieved. The system is working great, Travin and Kyo were great and even tolerated me doing some training with my dog around strangers! 100% recommended
Randall King
Randall King
19:25 15 Jul 20
I highly recommend MM Comfort Systems for their professionalism, great customer service, and quick response. Tom, who came out to give us a bid, answered all of our questions, and emails promptly. The installers, Drew and Lamont did a meticulous job with the install of our new furnace and AC unit. We had other bids, and this was the one we ultimately went with because of their knowledge, and quick responses.
Colleen Jensen
Colleen Jensen
18:38 27 Jun 20
We just had a new heater and air conditioner put in our home. MM Comfort Systems were fantastic! I got several bids, but there’s was the best by far. They were prompt with correspondence and the whole process was super fast. The estimator Rod Kippes was great and explained all of the options we had, teaching me about how the system worked and answering all of my questions. Install was beautiful and the installers Dan and Alex were so friendly and knowledgeable. They explained how to operate and maintain my furnace and taught me how to program my thermostat. I couldn’t be more happy with my new equipment and would recommend MM Comfort Systems to anyone needing heating and cooling in their home.
Rob Lane
Rob Lane
16:19 03 Jun 20
Zach and Randall came at a very challenging time for everyone (Everyone is currently self isolating at home) They were not only respectful of my home, but were very professional and were able to communicate and complete the job while maintaining a safe distance. They were on time and very efficient with their work. The system itself, while only a few hours old, really beats the window units I was using before. My only regret is not making the plunge sooner. Thanks MM!
Jonathan Saenz
Jonathan Saenz
21:24 29 Apr 20
I really like that they've incorporated virtual appointments and no contact service calls during a time like this. They've made maintaining our home's air systems super easy and are all very friendly.
Aileen Song
Aileen Song
21:01 22 Apr 20


Our Office


Follow Us!

Site Map | Privacy Info | © 2021 MM Comfort Systems. All rights reserved | Web Design & Marketing by Jula Creative

Office: M-F 8am - 5pm
Services: 24/7
Give us a call 24/7
9680 153rd Ave NE,
Redmond, WA 98052

Have ALL the comforts of Home!

Stay informed with seasonal reminders, tips to prolong the life of your system, and the latest in comfort innovations.

To our Customers and Employees,


We are reaching out to inform you that MM Comfort Systems is taking the spread of COVID-19 very seriously. We are fully operational to serve the comfort needs of our customers, and as we continue to provide service and installations throughout the greater Puget Sound area, we want to assure you that the well-being of our community is our top priority. Following recommendations from both the CDC and the Washington State Department of Health, we have taken and are continuing to take measures of precaution to ensure the safety and wellness of our customers and employees.

At our facilities


  • Employees have been instructed to adhere to CDC recommendations for sanitization and social- distancing.
  • Employees who have any cold or flu symptoms are required to stay at home until symptom free for at least 3 days or 7 days after symptom onset, whichever is longer.
  • Should an employee have exposure to someone who has a confirmed or suspected case of COVID-19, they are expected to remain home for 14 days for health monitoring.
  • Hand sanitizing stations have been setup throughout our facilities.
  • Frequency of sanitization in our facilities has been increased and cleaning crews are taking extra precautions throughout their regular deep cleans.
  • All in person team meetings and group functions have been cancelled for the time being.
  • Personnel who can perform their jobs from home are doing so.
  • We are limiting contact and practicing social-distancing with our vendors and other potential outside visitors.

In your home


  • Our field staff has been trained be mindful of sanitization in your home and they have been equipped with gloves, disinfectant and masks. Please be advised that they will likely arrive wearing their masks and gloves.
  • Although, our technicians will not arrive to your home wearing a mask, they will be happy to wear one at your request. It is standard practice for a technician to wear a mask if entering a crawl space or attic area.
  • Our technicians have been informed to respect social distancing in your home.
  • Our technicians have been instructed to follow these procedures:
  • Use gloves whenever possible.
  • Wipe down all equipment or thermostats at the completion of the job.
  • Frequently wipe down their tablet using disinfecting wipes.
  • Frequently wipe down the inside of their vehicle and frequently touched items with disinfecting wipes.
  • Our customers are no longer asked for signatures on tablets.

Please inform us in advance of your appointment if you or anyone in your household are showing any of the symptoms of the Coronavirus or have tested positive for the Coronavirus. The World Health Organization has identified symptoms as shortness of breath, fever, and persistent cough

h. We will work together to find a solution for the services you need while ensuring the safety of everyone involved.

Should we find that any changes to our scheduling is necessary during this time, we will let you know as soon as we know. We are continuously monitoring the COVID-19 situation and will take whatever measures are necessary to ensure the safety of you and our staff.