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Best boiler installation pros near Milton, WA

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TRUSTED BY MILTON, WA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon2.3k+
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Milton - Updated Nov 2026

Avatar for Ranger Heating & Cooling
Ranger Heating & Cooling
4.8(
104
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Milton, WA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Crew was very prompt and professional. Took care to put booties on whenever entering the house and courteous of your needs. Very nice, professional installation and site picked up and cleaned after completion. Thorough walk through and explained any questions don’t hesrtate to call and they will be more than happy to come back out and help."
Dominic with our great customer standing beside a Mitsubishi ductless outdoor unit.
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Response time2 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for Puyallup Heating & Air Conditioning
Puyallup Heating & Air Conditioning
4.7(
34
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Milton, WA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"Kelly Chong was great! He took the time to explain everything to us and his installers were friendly and polite. When they entered the house, they would always take off their shoes and kept everything clean. They even swept the garage when they were finished. Kelly provided exceptional customer service and even came out the following week to make sure everything was good and explain the new thermostat to my wife.
"
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+43

2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Cummings, Inc.
Cummings, Inc.
4.3(
282
)
Gas Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Milton, WA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Received 4 quotes. Cummings was the least expensive that I used to bargain two others to. They matched but had install dates of 30 days. Cummings had their electricians and HVAC guys here in 8 days. Installation done in 4 hours. All had good customer service & tech skills."
Coleman Furnace
Heat Pump Replacement
Heat Pump Install
Change out a Coleman Furnace
Boiler system

+1

Response time9 hrs
Response rate97%
236 neighbors recently requested a quote
Avatar for THE JANES COMPANY, INC.
THE JANES COMPANY, INC.
5.0(
6
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Install+2 more

Serving Milton, WA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Jane's replaced my 20-year old Munchkin boiler with a super efficient, modern Rinnai. Everyone was a joy to deal with. Service was excellent. Darian, who scheduled and arranged the replacement, and Greg and Oscar (who did the work) were fantastic. Excellent service, especially since I live on Lopez Island, which is not easy to get to. Competent, good-natured, hard-working, nice folks."
Boiler installation
Bellingham Boiler Upgrade
23 neighbors recently requested a quote
Avatar for Plumbing Excellence Northwest, LLC
Plumbing Excellence Northwest, LLC
5.0(
9
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Milton, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I had an excellent experience with Jose Plumbing Excellence Northwest. They first helped me fix a leak, and later replaced my water heater when it went out. Both times, they were able to schedule me right away, which I really appreciated. The team was professional, efficient, and made sure everything was done correctly. Their customer service was great from start to finish, and they made the whole process smooth and stress-free. I highly recommend them for any plumbing needs!"
Boiler
Water Heater
Response time1 day
Response rate100%
3 neighbors recently requested a quote
Mercurio's Heating & Air Conditioning
4.7(
157
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Milton, WA and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"The folks came out and gave us a price of what the job would cost and were up front about the wait time for the furnace to be in stock. When furnace was available they came out when they said they would. The gentlemen were very courteous and nice and were very forth coming with answer to our questions. They cleaned up what little mess they made before they left. all in all we were very pleased with the work and workmanship of the project.
"
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+8

Recommended by93%of homeowners
Avatar for Home Comfort Alliance
Home Comfort Alliance
4.7(
341
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Milton, WA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"Starting with the sales process, Nate was informative and great. Could've sold me a more expensive replacement system, but instead identifies how my current system cod be retrofitted with a heat pump. That sold me on G&S right there. Everything from the initial install review, the office staff working with my lender, to Izaak and the install and electrical teams, was punctual, informative and professional. I've had several bad experiences with other contractors, but I would confidently recommend G&S for any job and plan to use them again for a generator switch install. Good people with a good business. Thank you G&S!"
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+1

Response time1 day
Response rate100%
Recommended by91%of homeowners
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Install Boiler FAQs, answered by experts

Costs depend on system size, efficiency rating, and additional features like zoning or smart controls.

Boilers are equipped with multiple safety features to ensure safe operation. These include pressure relief valves to prevent overpressure, temperature high-limit switches to avoid overheating, and flame failure safety devices in gas boilers to cut off the gas supply if the flame goes out unexpectedly. Low water cutoffs prevent operation with insufficient water levels, and pressure gauges help monitor pressure levels. Ventilation and flue systems prevent the buildup of harmful gasses. Boilers often feature error code systems for automatic shutdown during malfunctions and gas leak detection for safety. Regular maintenance is crucial to ensure these safety features function correctly.

Overall, heating your home with an oil furnace tends to be less expensive than heating your home with an electric heating system. Oil heating systems stay warm for longer periods of time without drawing a constant electrical current to maintain a temperature. Plus, heating oil systems typically have a longer lifespan and lower price tag than their electrical counterparts, resulting in short- and long-term savings.

Common problems include leaks, low pressure, and inefficient heating. Regular maintenance prevents many issues.

In some cases, conversion kits are available, but not all boilers are compatible. Conversion may require significant modifications and should only be performed by a qualified professional. Before making a decision, compare conversion costs to the cost of a complete replacement to determine the most cost-effective and reliable option for your home.

The Milton, WA homeowners’ guide to boiler installation services

From average costs to expert advice, get all the answers you need to get your job done.