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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

"Services were provided on time and in a professional manner. They managed to install a gas furnace, ac, and install duct work while doing minimal damage to the house. The technicians were on time, clean, and well mannered. Over all Ranger heating did exactly what I hired them to do with minimal interruption to my life, finishing the job on time, with out damage, and the house was cleaner when they left then it was when they started.
"
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 Cummings, Inc.
Cummings, Inc.
4.3(
282
)
Electric Boiler or Radiator Heating System - InstallGas 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%
232 neighbors recently requested a quote
Avatar for THE JANES COMPANY, INC.
THE JANES COMPANY, INC.
5.0(
6
)
Gas Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - InstallOil 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
24 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

"Jose Ruiz was very professional explained every step of the process. As someone who knows nothing about plumbing he walked me through all the details. Thank you Jose for coming out to my home within 2 hours on a Friday evening. A job well done at a reasonable price. You Rock!!!"
Boiler
Water Heater
Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Robert the Plumber and HVAC 2 LLC
Robert the Plumber and HVAC 2 LLC
5.0(
7
)
Gas Boiler or Radiator Heating System - Install

Serving Milton, WA and surrounding areas

Approved

Emergency services offered

Warranties offered

Credit card accepted

Robert the Plumber and HVAC 2 is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to ther details of each project that we are involved with. Please feel free to contact us today!

New water Heater Install
Leaking Water heater
Maintenance
A/C Maintenances
Water Heater Install

+4

66 neighbors recently requested a quote
Avatar for AAA Heating & Air Conditioning
AAA Heating & Air Conditioning
4.8(
237
)
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 1989

Free estimates

Emergency services offered

"Service was excellent/price competitive. Furnace went out during week of snow storm. Bob & Allen made it to my house and were able to install my furnace. Even though it was very cold and miserable (with them getting stuck in the snow and having to dig out just to make it in and out of my driveway) they remained professional and upbeat. You will see by the attached photos the huge effort these two men had taken to provide heat to a customer who had none. Thank you for going above and beyond. Will continue to be an annual service customer."
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Our Service Center
Response time1 day
5 neighbors recently requested a quote
Recommended by96%of homeowners
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

"Mercurio's was highly recommended to us by our neighbor. We met with Steve to discuss several AC options. He provided us with the documentation required to get the external unit placement approved by our HOA, and followed up with us to ensure we had approval before confirming with the installation team. The installation team was highly professional, efficient, and left our garage in excellent condition. After the installation, we discovered the fan was running 24 hours and asked for some assistance in turning off the fan. Charles came to our house, identified the external timer that was causing the issue in less than a minute, provided to us a quote for an air scrubber that came up during the conversation, and billed us nothing for resolving the fan timer issue. This team of professionals is the best home improvement service team we have ever experienced!"
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+8

Recommended by93%of homeowners
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Install Boiler FAQs, answered by experts

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

It takes about five to 10 minutes for heat to reach a radiator, then about one hour until the radiator fully heats up a room. The exact duration depends on the size of the room and how far away the radiator is from the boiler heating system. Heating up an entire house could take up to two hours.

Safety concerns with propane boilers include proper venting to prevent carbon monoxide buildup, secure gas line connections, and regular inspection of safety controls. Professional boiler installation and annual maintenance are essential to minimize risks. Having a carbon monoxide detector installed in your home is essential for early detection of any leaks or ventilation issues.

Hydronic and standard electric baseboard heaters differ in how they operate, their cost, and their performance. Standard convection heaters use electric coils to heat the air directly, while hydronic heaters warm a contained liquid like water or oil, which then radiates heat into the room.

In terms of cost and efficiency, hydronic heaters usually have a higher upfront price but are more energy-efficient and cheaper to run over time. This is because the heated liquid retains warmth, allowing the heater to continue providing heat for a while after the thermostat turns it off. In contrast, electric heaters provide heat more quickly but are less efficient.

Ultimately, the better choice depends on your priorities. If you need a room to heat up fast and have a lower initial budget, an electric heater might be suitable. If long-term energy savings are more important and you don't mind a slower heat-up time, a hydronic heater is likely the better option.

Chilled water HVAC systems use water instead of traditional components and refrigerants. They're more common in commercial settings than residential ones but are slowly being adopted by some homebuilders to cool homes. As the name implies, the system keeps the water chilled at 40 degrees and circulates it through water coils. The water absorbs the heat from your home and drains outdoors. Condo apartments are more likely to have chilled water HVAC than single-family homes because this system is designed to cool several rooms or large areas individually.

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.