HEATING
Keep your Seattle-Tacoma home warm & safe with expert furnace repair, installation, & maintenance. We service all major brands with emergency heating service & same-day appointments.
OUR SERVICES
Our company will take care of all the essential services and systems in your home that keep you comfortable including HVAC, plumbing and electrical services. We keep your home and commercial properties comfortable. Our experts ensure all your home comfort systems are safe, efficient and reliable.
COOLING
Beat the heat with reliable AC repair, installation, & seasonal tune-ups. Serving Seattle, Tacoma, & Puget Sound homeowners, we maximize comfort, efficiency, & energy savings.
PLUMBING
From leaky faucets to emergency pipe repairs, our licensed plumbers deliver fast, dependable plumbing service in Seattle-Tacoma. Same-day service available.
ELECTRICAL
Trust our licensed electricians for safe electrical repairs, panel upgrades, & installations in Seattle & surrounding areas. Stay powered, protected, & code-compliant.
HEATING
Keep your Seattle-Tacoma home warm and safe with expert furnace repair, installation, and maintenance. We service all major brands and offer 24/7 emergency heating service — call today for same-day repairs.
COOLING
Beat the heat with reliable AC repair, installation, & seasonal tune-ups. Serving Seattle, Tacoma, & Puget Sound homeowners, we maximize comfort, efficiency, & energy savings. Schedule today.
PLUMBING
From leaky faucets to emergency pipe repairs, our licensed plumbers deliver fast, dependable plumbing service in Seattle-Tacoma. Same-day service available — book your plumbing appointment today.
ELECTRICAL
Trust our licensed electricians for safe electrical repairs, panel upgrades, & installations in Seattle & surrounding areas. Stay powered, protected, & code-compliant with our electrical services. Book today.
AFFORDABLE COMFORT WITH FLEXIBLE FINANCING OPTIONS
Don’t put off repairs or upgrades. With our flexible financing plans, you can enjoy year-round comfort without the upfront burden.
Low monthly payments 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
SAVE UP TO $8,000 WITH CREDITS + REBATES
-
Instant rebates through PSE & Energy Smart Eastside
-
0% interest financing for qualified homeowners
-
Up to $2,000 in federal tax credits
SPECIAL OFFERS
Aeroseal Duct Sealing as low as $99*
Experience the difference Aeroseal can make in your home.
$50 OFF HVAC System Service or Repair*
Keep your HVAC system running smoothly and efficiently all year long.
Up to $1000 OFF Generators*
Save on energy-efficient upgrades. Includes expert installation.
Up to $300 OFF Water Heater Installation*
Save on energy-efficient upgrades. Includes expert installation.
READ WHAT OUR CUSTOMERS ARE SAYING
See Why Puget Sound Homeowners Vote Home Comfort Alliance #1
A Brief History
- 0
- 1977
- 1994
- 1999
- 2001
- 2008
- 2009
- 2015
- 2018
- 2020
- 2021
- 2021
- 2022
- 2025
-
49 Years – Practicing Excellence
This timeline is a historical journey of each company and how we became Home Comfort Alliance. -
The beginning – 1977
B&B Heating is founded and within a few short years, they are recognized as the national Residential HVAC Contractor of the Year. The same year, GS Heating & Cooling is founded in Monroe, WA quickly growing to more than 50 team members. -
Sullivan Heating & Cooling – 1994
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 – 1999
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 – 2001
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 – 2008
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 – 2009
MM Comfort Systems acquires Heritage Heating of Tacoma and RiteWay Gas of Auburn and opens a second location in Sumner. -
A new beginning – 2015
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 – 2018
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! – 2020
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 – 2021
Alpine Aire of Wenatchee is acquired, bringing the promise of comfort to homes east of the mountains. -
Full Plumbing Services Added – 2021
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 – 2022
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 – 2025 & Beyond
Home Comfort Alliance continues to grow and provide the most comfortable & professional solutions for or clients homes and businesses.
FREQUENTLY ASKED QUESTIONS
How much does heating installation cost in Seattle?
Heating installation costs in Seattle typically range between $5,000 and $15,000, depending on home size, system type, and existing infrastructure. Home Comfort Alliance provides free estimates, flexible financing, and can help you apply for valuable local rebates.
What’s the difference between a furnace and a heat pump?
A furnace produces heat using gas or electricity, while a heat pump transfers heat from outside air and can also cool your home. Heat pumps are more energy-efficient and eligible for significant rebates through PSE and Tacoma Power.
How long does installation take?
Most heating installations are completed in 1–2 days. This includes system removal, installation, testing, and any required electrical or ductwork upgrades. Home Comfort Alliance ensures minimal disruption and professional cleanup.
Do I need to upgrade my electrical panel?
If you're installing a heat pump or high-capacity system, an electrical panel upgrade may be required. Our technicians will assess your current setup during the estimate and provide a turnkey solution—including in-house electrical panel upgrades when needed.
CONTACT US TODAY
HVAC, Plumbing & Electrical Services Across
Seattle–Tacoma & Greater Puget Sound Region
Design • Installation • Repair • Maintenance
HVAC
DESIGN | INSTALLATION | SERVICE
Energy-efficient systems, same-day repairs & emergency support.
Plumbing
SERVICE | REPAIR | INSTALLATION
Fast leak repairs, clean installs & honest, upfront pricing.
Electrical
DESIGN | INSTALLATION | REPAIR
Licensed electricians for safe, code-compliant upgrades & fixes.