Seattle-Bellevue-Tacoma Furnace, Heat Pump, AC, Ductless Pros

How can we help you?

Comfort and efficiency from friendly HVAC experts you can trust.

We are specialists in design, installation and service of heating, air conditioning and indoor air/water quality systems. We have the expertise required to meet today's need for comfort, efficiency and a healthy living environment. 

MM Comfort Systems
Furnace, AC, Heat Pump

Service & Repair

Heating and Air Conditioning maintenance to keep your systems safe & efficient. Reliable repair when you need it - 24x7. Expert service in all brands.

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Furnace, AC, Heat Pump

Replacement

Full range of installed heating, air conditioning and air quality systems: furnace, heat pump, AC, hybrid, ductless, radiant, geothermal, water heaters, etc.

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Furnace, AC, Heat Pump

Consultation

Friendly, expert consultation is available by appointment. Consultative approach includes inspection, heat loss calculation and written options.

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Utility INSTANT Rebates Available Now!!

Seattle City Light & PSE now offering rebates on heat pumps duct sealing, & more...

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Planned Maintenance Assurance (PMA) Offers

New customers can take advantage of our special offer, & more...

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CARRIER FACTORY PROMOTIONS

LIMITED TIME. CASH REBATES.

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LENNOX FACTORY PROMOTIONS

LIMITED TIME. CASH REBATES. 0% FINANCING. 

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The Air Conditioning & Heating experts for Seattle, Bellevue, Tacoma and Redmond

Professional Assessments conducted by qualified experts. We have BPI certified Home Performance consultants and auditors. 

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"I have trusted MM for our household HVAC needs for 10 years. Service has been prompt, competent and fairly priced. That factored into my choice of...

Rick - Kirkland, WA

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"Fabulous stress free experience. Wonderful sales person - very kind. Installers here all day, great guys. Electrician did a nice neat job on new...

Richard - Redmond, WA

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"GREAT experience. Super professional people. System works great. Thank you!"

Vince & Crystal - Snohomish, WA

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Seattle's Heating, Furnace, AC & Heat Pump Experts

Seattle - Bellevue - Redmond - Tacoma Experts in HVAC Systems for Furnace Heating, Air Conditioning, Duct Cleaning, Ductless Heat Pump Installations, & Energy Efficiency

Heating and Air Conditioning maintenance to keep your systems safe & efficient. Expert service in all brands. Much more than the Seattle area’s best heating and cooling company, we focus on the total performance of your home or office building. MM Comfort Systems helps you understand options to audit, maintain, repair or replace your aging HVAC systems including furnace heating repair, air conditioning, air duct cleaning or repairs, new heat pump, or new water heater insulations. Serving Seattle, Bellevue, Redmond, Tacoma and surrounding areas since 1977.

About Us
Jan 07
WHY IS MY HEATER MAKING THAT LOUD NOISE?

Furnaces are big metal contraptions with internal moving parts, so it's not surprising to hear a few noises now and then when the heater turns on or off. Although most furnaces usually... Continue Reading

Dec 16
Why Is It Important to Have Good Ventilation in a Commercial Space?

You have a lot of responsibilities to take care of with your commercial business, so it can be difficult to keep track of which tasks are top priorities and which can be put off for a while... Continue Reading

Dec 09
Central Heating And The Dry Winter Woes

Curling up with a cup of hot cocoa while watching the snow blanket the ground outside gives the winter season a magical, fairy tale setting, but the warm air piping out of the central... Continue Reading