Top-rated boiler installation pros.

Best boiler installation pros near Kapaa, HI

Enter your zip and get matched with up to 5 pros

Need a pro for your boiler installation project in Kapaa, HI?

Select your specific project to find the pro for you.

TRUSTED BY KAPAA, HI HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon32
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Kapaa, HI

*The Angi rating for Boiler Installation companies in Kapaa, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

*The HomeAdvisor rating for Boiler Installation companies in Kapaa, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

Last update on June 19, 2026

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

Avatar for Paradise AC
Paradise AC
5.0(
7
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Kapaa, HI and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"I haven’t cleaned my split AC unit for over a year. Called Paradise Ac to come and check it out. Lance the owner was really professional and responsive. He cleaned out all the mold and dust in the unit that I couldn’t see. My Ac is blowing cleaner air and it makes a big difference. I highly recommend Paradise Ac for all your service needs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+44

Recommended by100%of homeowners
Request Quote
Avatar for Ultimate Air Conditioning
Ultimate Air Conditioning
5.0(
4
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Kapaa, HI and surrounding areas

Emergency services offered

Credit card accepted

"Not only was ultimate air on time, they did a good job cleaning our system, and now we can breathe clean air, keeping me and my family healthy. They also explain in detail why it wasn’t blowing as strong, and showed me how dirty it was, and explain that it needs at least a cleaning every six months. Definitely would recommend and will be hiring them again. Thank you ultimate air!"
2nd central AC outdoor unit complete
Before and after
Completed installation of a Daikin outdoor condenser
First WiFi thermostat installed
After power washing the unit, this is the dirty/moldy water coming out into the bucket

+36

Recommended by75%of homeowners
Request Quote
W.Labanon Home Repair and Services
5.0(
5
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Kapaa, HI and surrounding areas

In business since 2019

Emergency services offered

Credit card accepted

"Everything was done perfectly. The contractor is a very hard working person. He was very efficient n productive through out the whole job and with the cost of a very fair price. Also the job that needed to be done got completed in a very timely manner. So I would definitely recommend Labanon Home Repair n Services to anyone out there whose looking to remodel or renovate their homes."
Recommended by100%of homeowners
Request Quote
Avatar for Leo’s Painting
Leo’s Painting
4.7(
6
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Kapaa, HI and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"The job went extremely smooth and the team was professional. I (customer) did not specify the paint type I wanted but the job turned out better than expected."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+31

Recommended by83%of homeowners
Request Quote
Avatar for Universal AC Inc
Universal AC Inc
5.0(
3
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Kapaa, HI and surrounding areas

In business since 2022

Credit card accepted

"They did a great job. They take care of the problem, and they found out the problem and replace the part."
Recommended by100%of homeowners
Request Quote
Avatar for GPV SERVICES LLC
GPV SERVICES LLC
5.0(
5
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Kapaa, HI and surrounding areas

Free estimates

Emergency services offered

"Very well. He arrived on time, inspected the doors and got right to work. Install worked perfectly."
Replace new window
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Recommended by100%of homeowners
Request Quote
Avatar for Indoor Air Quality
Indoor Air Quality
5.0(
3
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Kapaa, HI and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"Josh was awesome! Customer service was great from start to finish of the job. He was really nice and explained everything very detailed in terms I could understand so I know the work he was doing was legit. Would definitely recommend and will be calling for any future work I need done."
Black spots= biological growth
Dark areas of foam is biological growth and dust
Chemicals use during Indoor air handler deep clean.
Indoor coil deep clean
Additional Photos

+3

Recommended by100%of homeowners
Request Quote
Showing 1-10 of 12
Install Boiler FAQs, answered by experts

The main difference between an outdoor wood furnace versus an outdoor wood boiler is what each appliance is heating. An outdoor wood furnace burns wood to create heat, which warms the air and moves it through the ducts in your home. An outdoor wood boiler uses the heat from burning wood to warm water, which goes through pipes to radiators in the home.

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.

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.

Always consult your manual for specific pressure numbers. Many expansion tanks come pre-pressurized at a specific PSI range, anywhere from 12 to 40 PSI, designed for a range of home boilers. You should not have to pressurize an expansion tank yourself, only the boiler system. If your system has a tank that needs to be manually pressurized, this is generally a job for professionals and their tools.

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.

The Kapaa, HI homeowners’ guide to boiler installation services

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

See all articles