Locally-owned since 1977 • Licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD) • WA Electrical Contractor Lic. #HOMECCA782DC • WA Plumbing Contractor Lic. #HOMECCA751QG • NATE-certified technicians • Carrier Factory Authorized Dealer • Mitsubishi Electric Diamond Dealer • Lennox Premier Dealer
Heating, cooling, plumbing and electrical service in Des Moines, WA
Home Comfort Alliance takes care of heating, cooling, plumbing and electrical work for homes in Des Moines. The city is covered by our Sumner branch, so one call to (425) 645-0404 gets you a technician for a cold furnace, a new heat pump, a leaking water heater, a slow drain or a tripping breaker.
Des Moines runs along the Sound between Normandy Park and Federal Way, from the marina and the beach park downtown up the hill to Pacific Highway and the neighborhoods around Highline College. Our crews come over on Kent-Des Moines Road, and the homes they see range from waterfront houses in Redondo and Woodmont to condos near the marina and ramblers on the hill.
Our Des Moines HVAC, Plumbing & Electrical Services
The same Sumner-based team handles every system in your Des Moines home. Choose a service:
Heating
Cooling
Plumbing
Electrical
Nearby, we also serve Federal Way, Kent, Renton and Auburn.
What Des Moines homes need
Des Moines is a mix of three kinds of housing, and each brings its own calls:
- View and waterfront homes on the slopes above the Sound, where salt air works on outdoor units and electrical gear, and where crawlspaces and daylight basements deal with water coming downhill.
- Ramblers and split-levels on the hill and toward Pacific Highway, where original ducts, older panels and aging water heaters are common.
- Condos and apartments near the marina and along Pacific Highway, with tight closets, electric wall heaters and little room for new equipment.
Living near the airport
The north end of Des Moines sits under the flight path into Sea-Tac. Plenty of people there keep windows closed to cut the noise, which turns a stuffy upstairs into a real problem on warm evenings. A heat pump or ductless system that cools quietly, with a good filter and steady fresh air, lets you keep the house closed without cooking in it.
Utilities and rebates in Des Moines (September 2026)
Puget Sound Energy supplies electricity and natural gas in Des Moines. Water and sewer are split among several districts: Highline Water District, Lakehaven and Water District 54 for water, and Midway, Southwest Suburban and Lakehaven for sewer (City of Des Moines, Community Services Directory). As a PSE customer, you may qualify for:
- Moving from baseboards, wall heaters or an electric furnace to a heat pump: $1,500, and income-qualified homes can add up to $2,400 through Efficiency Boost (PSE electric resistance to heat pump rebate).
- Keeping the gas furnace and adding a heat pump: $1,500, with the same Efficiency Boost top-up (PSE hybrid heat pump rebate).
- Replacing an electric tank with a heat pump water heater: $1,000, or $1,100 through Efficiency Boost (PSE heat pump water heater rebate).
We are a PSE Trade Ally for HVAC and water heaters, so the rebate forms are ours to file. Full details are on our PSE rebates page for details.
Permits in Des Moines
The City of Des Moines issues building, electrical, plumbing and mechanical permits online through MyPermits Online, and it publishes a separate checklist for water heater replacements (City of Des Moines, permit applications and information). Des Moines also runs its own electrical inspections instead of sending them to L&I (L&I, cities that do their own electrical permits). We apply for the permits our work needs and meet the city inspector, so the job ends up signed off and on record.
Salt air, slopes and rain
Houses with a view of the Sound pay for it in maintenance. Salt air pits outdoor coils, disconnects and outlet covers. Steep lots send rainwater toward foundations, so sump pumps, drain lines and crawlspace ducts get a workout from fall through spring. On visits near the water we look at outdoor coils and connections, and we place new outdoor units where they get airflow and stay out of the worst spray.
Where we work around Des Moines
We cover all of Des Moines: the Marina District and downtown, Redondo and Woodmont to the south, Zenith and the Saltwater State Park area, North Hill, Pacific Ridge along Highway 99, and the streets around Highline College. We also work in neighboring Normandy Park, SeaTac, Burien, Tukwila and Kent.
What do common services cost around Des Moines?
To give you a feel for typical prices, here are published Seattle-area and national figures. They are not our prices; yours comes in writing after we see the job.
| Job | Typical range | Source |
|---|---|---|
| General plumbing repair | $284 to $760, about $522 typical | Angi, Seattle plumber costs, updated July 2026 |
| Water heater installation | $800 to $2,000 | Angi, Seattle plumber costs, updated July 2026 |
| Electrician service visit | $163 to $538, about $351 | Angi, electrician costs, updated August 2026 |
| Furnace repair | $139 to $544, about $341 | Angi, Seattle furnace repair costs, updated August 2026 |
| New furnace installed | $2,762 to $6,683, about $4,683 | Angi, Seattle new furnace costs, updated July 2026 |
| Ductless mini-split, one zone | $2,222 to $5,555 | Angi, Seattle mini-split costs, 2026 data |
Get an estimateA comfort advisor will call you to set up your visit.
Warranty and Home Comfort Club
We support the manufacturer’s warranty on covered equipment parts, and we stand behind our installations with a 1-year labor warranty from installation.
Join our Home Comfort Club, a monthly membership starting at $15 a month, and a new system we install gets extended labor coverage for as long as your membership stays active, up to 5 years from installation. Ask your technician or comfort advisor for the current plan details.
Des Moines home services FAQ
Does Home Comfort Alliance serve Des Moines, WA?
Yes. Our Sumner branch covers Des Moines for heating, cooling, plumbing and electrical work. Call (425) 645-0404 or request an estimate online.
Who provides electricity and natural gas in Des Moines?
Puget Sound Energy provides both (City of Des Moines, Community Services Directory), so PSE’s heat pump and water heater rebates are the ones that apply to most Des Moines homes.
Which water and sewer district serves my Des Moines home?
It depends on the street. The city lists Highline Water District, Lakehaven and Water District 54 for water, and Midway, Southwest Suburban and Lakehaven for sewer (City of Des Moines, Community Services Directory). Your bill shows which one is yours.
Who issues permits in Des Moines?
The City of Des Moines issues building, electrical, plumbing and mechanical permits through its MyPermits Online portal (City of Des Moines, permit applications and information), and the city does its own electrical inspections instead of L&I (L&I, cities that do their own electrical permits).
Do you charge for estimates?
Replacement and new-installation estimates cost nothing. Repair and service visits have a trip fee, and the repair is priced in writing before we start.
What warranty comes with your work?
We support the manufacturer’s warranty on covered equipment parts, and our labor warranty covers installations for 1 year from installation. Home Comfort Club members (monthly membership starting at $15 a month) with a new system installed by Home Comfort Alliance get extended labor coverage for as long as their membership stays active, up to 5 years from installation.
Why Choose Home Comfort Alliance in Des Moines?
Your Comfort is Our Promise
We promise...
Reliable heating, air conditioning, plumbing and electrical service, all from one trusted company.
To educate and guide you through your options so you’ll find the right solution at the right price.
Knowledgeable and respectful workers who ensure both your own comfort during the installation process, and lasting comfort from your home systems.
Outstanding service, communication, and follow-up, so your home is comfortable now and for years to come.
Get an estimate in Des Moines
A Sumner-based comfort advisor will set up your visit, and you get a written price before any work starts.
Get an estimate
A Sumner-based comfort advisor will call you to set up your visit.