Locally Owned Since 1977
Serving Seattle-Tacoma homes since 1977 from four local branches: Sumner (headquarters), Redmond, Everett and Bremerton.
Upfront Pricing
You see the price before any work begins, with no pressure to decide on the spot. Installation estimates are free.
Licensed and Certified
Licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD), with NATE-certified technicians and a 1-year labor warranty on installations.
Heating, Cooling, Plumbing and Electrical From One Local Team
Home Comfort Alliance provides heating, cooling, plumbing and electrical service for homes across the Seattle-Tacoma area, from four local branches in Sumner, Redmond, Everett and Bremerton. Locally owned since 1977, we give you an upfront price before any work begins. See every city we serve on our service areas page.
HEATING
After-hours emergency heating. All major brands.
COOLING
Heat pump rebates through PSE and Energy Smart Eastside.
PLUMBING
Licensed plumbers. Tank and tankless water heaters.
ELECTRICAL
Licensed electricians. Done to code.
See What Home Comfort Alliance Customers Are Saying
HVAC, Plumbing and Electrical Financing From $179/Month*
Low monthly payment plans starting at $179/month*
Works for repairs, installations, and replacements
0% interest options available for qualifying customers
Instant online approval with no paperwork hassle
See your payment options in minutes. Compare financing plans
*Financing through Salal Credit Union or Synchrony, subject to credit approval. Rates, terms and monthly payments depend on the amount financed, the plan and your credit. 0% interest options are available to qualifying customers. See lender for full terms.
SAVE UP TO $6,000 WITH UTILITY REBATES
Approved contractor for these programs. We handle the rebate paperwork for PSE, Tacoma Power and Cascade.
$6,000Energy Smart Eastside heat pump rebate, $1,000 instant
$1,500+PSE heat pump rebates
$2,400Cascade Natural Gas high-efficiency furnace
Also: Snohomish PUD, Seattle City Light and Tacoma Power rebates.
Amounts as of October 2026. Programs and eligibility change.
SPECIAL OFFERS
$50 Off Emergency
No Heat Calls
No Heat Calls
No Heat? Save $50 on emergency calls & get comfort restored fast.
Cannot be combined with any other offer. Not valid for trip charge or diagnostic fee.
Valid on standard non-member pricing only.
10% Off Heat Pump Tune-Up
Get 10% off your heat pump tune-up before the cold weather arrives.
Cannot be combined with any other offer. Not valid for trip charge or diagnostic fee.
Valid on standard non-member pricing only.
10% Off Electrical Service- Winter Checks
Get 10% off electrical service during your fall checkups and safety inspections before winter.
Cannot be combined with any other offer. Not valid for trip charge or diagnostic fee.
Valid on standard non-member pricing only.
$50 Off Holiday Lighting & Electrical Inspections
Upgrade lighting or get an electrical inspection - save $50 on approved same-visit work.
Cannot be combined with any other offer. Not valid for trip charge or diagnostic fee.
Valid on standard non-member pricing only.
$50 Off Burst Pipe or Frozen Pipe Repairs
Get $50 off professional repair service for qualifying burst or frozen pipe issues.
Valid on qualifying burst or frozen pipe repair services. Limit one offer per household. Cannot be combined with any other offer, discount, or promotion. Additional restrictions may apply.
Up to $300 Off Water Heater Installation
Upgrade your water heater and save up to $300 with professional installation.
▶ Watch Video: Our Service Coordinator, Lisa, tells a real story about how a new Comfort Club member avoided an emergency breakdown.
Join the
Home Comfort Club
A Comfort Club membership ensures that your system receives the essential care it needs for optimal lifespan and energy efficiency. With low monthly payments, it costs less than calling for unplanned service.
You can choose a membership for HVAC, plumbing, or electrical services, or cover all three with one convenient plan.
You can choose a membership for HVAC, plumbing, or electrical services, or cover all three with one convenient plan.
Home Comfort Alliance: A Brief History
This timeline is a historical journey of each company and how we became Home Comfort Alliance. Home Comfort Alliance brought these local companies together under one name in 2022.
The beginning
B&B Heating is founded. The same year, GS Heating & Cooling is founded in Monroe, WA quickly growing to more than 50 team members.
Sullivan Heating & Cooling
Sullivan Heating opens its doors serving Kitsap and Mason counties and builds a reputation of integrity and quality workmanship. Growing to be the largest new construction installer on the Kitsap Peninsula.
Comfort Mechanical Services
Comfort Mechanical Services is established, providing commercial HVAC services to the greater Puget Sound area. Providing timely and excellent customer service.
B&B becomes MM Comfort Systems
Key employees at B&B Heating purchase the residential side of the business and rename the company MM Comfort Systems. A new era of customer-centered residential service begins.
Scribner Electric
Scribner Electric is established and quickly develops a reputation throughout King and Snohomish counties for professionalism and high-quality workmanship, serving both residential and commercial clients.
Heritage Heating & RiteWay Gas acquired
MM Comfort Systems acquires Heritage Heating of Tacoma and RiteWay Gas of Auburn and opens a second location in Sumner.
A new beginning
MM Comfort Systems is acquired by local community members with a vision of becoming the most desirable home services contractor in Western Washington…a mission that continues through today.
MM Comfort & GS Heating Join Forces
MM Comfort Systems and GS Heating, Cooling & Electrical join together, becoming the first two member companies of Home Comfort Alliance with locations in Sumner, Redmond & Everett.
Here we grow again!
MM Comfort Systems purchases Scribner Electric, providing more electrical services to residential and commercial customers. Sullivan Heating and Comfort Mechanical become part of the family of brands, adding a commercial division and extending services throughout Washington's peninsula.
Alpine Aire joins the team
Alpine Aire of Wenatchee is acquired, bringing the promise of comfort to homes east of the mountains.
Full Plumbing Services Added
MM Comfort System develops a full service & installation plumbing department to better service its customers and round out the whole home services for heating, cooling, electrical & plumbing services.
Home Comfort Alliance is launched
A rebranding initiative introduces Home Comfort Alliance to represent the joining together of all our companies delivering the comforts of home.
Our Promise of Comfort
Home Comfort Alliance continues to grow and provide the most comfortable & professional solutions for our clients' homes and businesses.
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