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Best boiler installation pros near Wilmington, CA

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon553
    Verified boiler installation services reviews

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

Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)
Boiler or Radiator Heating System - Install or Replace

Serving Wilmington, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"The new heating system was installed perfectly and works wonderfully. They were careful, neat, and professional. Definitely recommend their service. The whole process was smooth and stress-free."
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+24

Response time3 days
8 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Water Heaters Only, Inc
Water Heaters Only, Inc
4.7(
440
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmington, CA and surrounding areas

In business since 1968

Free estimates

Emergency services offered

"My water heater was leaking but glad that I contacted water heater only. I called at 10:00am and by 12pm they were here installing my new water heater. David from Water Heaters Only came in the afternoon of 6/12/18 and it took 2 hours to install to city and state code. He had all the parts and tools to change the water heater on the spot. Old heater was taken away and new heater installed by 2pm.. I would highly recommend Water Heaters Only. They were very professional and courteous."
Our technician Fabian getting ready to drain a water heater.
A newly installed 40 gallon residential water heater.
A tankless water heater installed in a garage.
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+2

Recommended by94%of homeowners
Avatar for Mirsky Heating & Air Conditioning
Mirsky Heating & Air Conditioning
4.9(
134
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmington, CA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"The service was wonderful, bar none.  He gave me a firm and complete estimate. Even after the estimate he was able to provide a slightly larger (more effective) cooling system at no additional cost.  Also, he never recommended anything outside of what I saw as appropriate for my situation.  My very old installation could not handle the installation of a Puron (sp?, newest technology) system without significant degradation of performance and longevity so he recommended I what I believe was an appropriate replacement unit.  My previous (long ago) experience in the HVAC industry only confirm everything Mr. Mirsky ("Darrow" as he probably prefers) told me.
All service was completed on-time(overall), on-budget, and on-time (within the service day) without issue.  The people assigned both at the preliminary inspection and installation were very kind, courteous, knowledgable and professional about the installation.
My opinion: if you need HVAC services within the service area Mr. Mirsky covers, call him in to do the work, NOW!  I have found this level of service within the LA are to be rare. He may not be Irish, but it is not unlike having a Leprechaun visit given what a find Darrow and his team represent!
My apologies to Darrow for not posting this earlier!
"
CEO & INSTALLER
CRANE
Rheem Puron System
Crane placing unit
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+15

Recommended by100%of homeowners
Avatar for Joe Fifth Heating & A/C
Joe Fifth Heating & A/C
4.9(
15
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmington, CA and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"Joe was amazing. He not only found a better A/C unit than the one we we were looking at (for even less than what we had originally budgeted) he also installed it perfectly. When we had a small issue (turned out to be low FREON) Joe came, replaced a valve and fixed it perfectly. Our new A/C is working great and Joe has been amazing to deal with. We would hire him again in an instant."
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+23

Recommended by100%of homeowners
Home Comfort USA
4.3(
110
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmington, CA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"The access panel on the unit was slightly bent as was the unit. Instead of repairing the installers taped it up with duct tape. The panel fell off and I had to call for another service man to come out and correct the problem. The second technician did a much better job."
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Recommended by86%of homeowners
Avatar for The Right Choice Heating & Air
The Right Choice Heating & Air
4.3(
169
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmington, CA and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"Installation was smoooth, it was done within a day. There was high pressure sales involed which I succumbed into as the sales guys were saying that I had fiber damage in my ducting and since I have kids in the house they said that it was very crucial that I do the change now. It was my fault to not do any more pricing research hence I was a bit gouged."
AC Pro Heat Pump Installation
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+56

Response time10 hrs
Response rate100%
Recommended by81%of homeowners
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Install Boiler FAQs, answered by experts

Radiators are a popular home heating choice in older homes, but they are becoming less common in new-construction homes. According to a 2022 report by Elements Visual Capitalist, only around 1.3% of new single-family homes have radiators and similar heating systems, such as baseboard heating.

While they may not be as popular as they once were, radiators today come with more energy-efficient features that can make them practical for modern homeowners.

Generally, an oil furnace is considered safer than a gas furnace for several reasons. While both types of furnaces can produce carbon monoxide, a leak in an oil furnace is easier to detect due to the smell. Oil furnaces also don't connect to a gas pipeline, which reduces the chance of a fuel leak. Most importantly, heating oil is not combustible, whereas natural gas is highly flammable. This means there is a much lower risk of combustion or explosion with an oil furnace. However, an oil furnace can still pose a fire hazard if it tips over.

Scale from hard water is hard to diagnose until it starts causing problems. If your area has particularly hard water, that’s most likely what your boiler is using. If scale build-up becomes a problem, it starts to cause decreased flow and heating, and eventually, valve failures as valves become blocked. Let boiler professionals know if you’re worried about scale and they can offer advice or implement a solution.

The primary differences between a heat pump and a boiler are their function and how they produce heat. A heat pump is a versatile system that provides both heating and cooling by moving ambient air and altering its temperature. In contrast, a boiler is solely a heating system, often working with a furnace or AC unit as part of a larger HVAC system. In terms of heat production, a heat pump generates heat more slowly and at a lower temperature, requiring a large convector for distribution. A boiler, however, produces a large amount of high-temperature heat that it emits through smaller radiators.

While you’ll pay more upfront for a brand-new HVAC unit, you can save money in the long run. Here’s how to save on your new HVAC system:

  • When purchasing a high-efficiency system, your energy bills will be lower in the future.

  • You may be eligible for special offers from your local energy company.

  • Depending on the system, you may be eligible for HVAC rebates and tax credits.

  • Choose to replace your air conditioning unit and furnace simultaneously to save on labor and installation costs. 

The Wilmington, CA homeowners’ guide to boiler installation services

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