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Best boiler installation pros near Cool, CA

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  • Verified reviews icon271
    Verified boiler installation services reviews

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

Avatar for Bonney Plumbing Heating Air & Rooter Service
Bonney Plumbing Heating Air & Rooter Service
4.0(
301
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Cool, CA and surrounding areas

Approved (Corporate)

In business since 1978

Emergency services offered

Warranties offered

"If you are in a jam, up against the wall, desperate or just plain don't know any other plumbing resource, then call Bonney. They are fast, courteous, professional - and outrageously expensive.
We called for plumbing help Friday AM and they sent someone out Monday. The plumber was here first thing, diagnosed the problem and wrote up a proposal. It was steep, but he was ready to solve all our plumbing problems, one stop and no more fuss - so I approved it.
In less than 90 minutes he had cleared the urinal drain and installed a new kitchen faucet. The faucet is exceptionally ugly, the worst Home Depot model possible. My mistake for accepting his choose A,B or C option. Although he indicated he would have to remove the urinal from the wall to access the drain line, I think he had a change of mind - the drain was rodded through the outlet after all, no removal - about 10 minutes work.
The bill was $1260. The (ugly) faucet was a $100 Home Depot special, call it $260 with steep contractor markup. That means his 90 minutes of labor was around $1,000 or $666 per hour. I wouldn't pay a divorce attorney that kind of money, even if I was Gwyneth Paltrow!
No complaints about the work or the professionalism - but man that price.
As George Bush once said, and quot;Fool me once, shame on you. Fool me twice, ... I won't get fooled again.and quot;

"
Our team at Bonney helped restore flow at this Sacramento home by performing a sewer spot repair on the main line for our customer.  This involved locating the problem area, digging the trench, snaking the line to clear the drain, repairing a section of the sewer pipe, and then backfilling the space to restore back to the original landscape.
Completed Install of Rinnai RU199e Tankless Water heater
Finished Project - Installation of new free standing Tesla Electric Vehicle (EV) charger for our customer in Davis
Before Picture showing the area where our customer in Citrus Heights wanted us to install the new water heater
Before picture of landscape

+18

31 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Peter Levi Plumbing, Heating, Cooling, Drains
Peter Levi Plumbing, Heating, Cooling, Drains
3.0(
13
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Cool, CA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Warranties offered

For over 35 years, for homeowners in Novato and northern California, the name Peter Levi has come to means just that — Trust.\nReliable, experienced & certified premiere HVAC, all of Peter Levi technicians are some of the friendliest, most knowlegeable people you’ll ever meet! Drug screened and background checked, you can always count on a top-notch experience.\n\nWe charge by the job, so you know the cost before we start. As one of the most trusted Novato and Vacaville commercial Plumbing and HVAC companies, we have worked with builders and homeowners alike for over 20 years, providing the highest quality, professional services with 100% customer satisfaction each and every time.\n\nPlus, you can always count on honest, upfront pricing with no hidden charges or fees and the confidence of knowing that a true professional is on the job!\n\nPLUMBING\nHEATING\nAIR CONDITIONING\nSEWER and DRAIN\nSERVICE and REPAIR\nCOMMERCIAL\nAND SO MUCH MORE!

10 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Bell Brothers Plumbing, Heating & Air Conditioning
Bell Brothers Plumbing, Heating & Air Conditioning
4.5(
362
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Cool, CA and surrounding areas

In business since 1991

Free estimates

Warranties offered

"I had them for years. They installed my furnace and air conditioner. They service it every year. The furnace is 10 years old. I have the annual contract for both. I don't remember the cost exactly. Everything works fine. If I ever had any issues, they send somebody back to look at it. They work like a lot of these jobs where they have a window, like 12-2 and 2-4."
Our technicians show up on time, in a clean Bell Brothers uniform with an ID badge.

The air conditioning repair company you call DOES make a difference. We deliver the best AC repair experience because we have the best techs: background-checked, highly skilled, and ALWAYS friendly.
If your furnace is broken, you want fast service, upfront pricing, and reliable results. We have the best team of heating repair technicians in Sacramento and the East Bay, and we’ve got the track record to prove it. 

Call on the A+ rated company with thousands and thousands of 5-star reviews. 

On-time heating repair guaranteed to be done right.
Best technicians – friendly techs with superior training.
Upfront pricing – quotes with no surprises.
HEATER MAINTENANCE
Getting your heating system back in peak operating condition is very affordable and easy to schedule. Why not extend the life of your furnace and lower your energy bills?

Bell Brothers thorough tune-ups are the best and easiest solution.
AIR CONDITIONING REPLACEMENT
Did you know that even the best air conditioning system fail if not installed properly? The skill, knowledge and expertise of your AC installers matters – it has to be professional all the way!

That’s why you’ll love that all Bell Brothers technicians are required to meet the following criteria:

All are background-checked.
All are drug-tested.
All technicians have undergone a rigorous 8-10-week training program.
AIR CONDITIONING REPAIR
he AC repair company in Sacramento and the East Bay who gets it done right the first time.

When you need an air conditioning repair, you deserve on-time service, upfront pricing, and friendly technicians that you’re comfortable having in your home. At Bell Brothers, we’ve been doing exactly that for 30 years.

+3

Recommended by89%of homeowners
Avatar for Diamond Heating and Air
Diamond Heating and Air
4.8(
120
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Cool, CA and surrounding areas

In business since 1990

Free estimates

Credit card accepted

"Air conditioning in one zone stopped working over very hot weekend.  Called three companies to get a quote on possibly replacing both zones before I spent money on repairing a 17+ year old unit.
Diamond was the first company with availability.  Before they came over to give a quote, Bob called to ask me a few questions about the nature of the problem.  He speculated over the phone of what the problem might be and what the cost of fixing it would be.
He arrived for the appointment at the appointed time and proceeded immediately to fix the unit while talking to me about an estimate to replace both zones (2 systems).  He spent extra time hunting down an electrical connection issue in the unit and when done, checked out the flow readings of the system.
$258 dollars fixed the problem.  Since I had scheduled him for a quote, he offered to remove the new part that he had just installed or I could leave it in and if I decided to buy a new system, they would credit the repair of this unit back against it.  I elected to have him leave the fix in place.
Bob quoted me an exceptionally good price per unit for a quality Lennox system.  In fact a competitor who came the following day said that he wanted to see a copy of a written quote because Diamond's price was too good.
Although I've decided for the time being to not replace both systems, I would select Diamond Heating and Air in a second!
"
Additional Photos
Recommended by96%of homeowners
Avatar for Service Champions Heating & Air Conditioning
Service Champions Heating & Air Conditioning
4.6(
688
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Cool, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Outstanding! Bid process fully transparent, proposal guaranteed labor, materials and equipment for decades to lifetime. Installation team of Carlos and Roland outstanding. Carlos kept me informed throughout and got my input into key decisions. Nice people, hard working and honest."
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+42

Response time9 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for Ray O Cook Heating & Air
Ray O Cook Heating & Air
4.7(
243
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Cool, CA and surrounding areas

In business since 1947

Free estimates

Emergency services offered

"Although the heat exchanger was still under warranty - the labor intensive job to remove the old one and install a new one wasn't. The labor was $929.00 to complete this all day job. I decided to replace the inducer motor at the same time since it was only a matter of time until it failed. I called Zak - the general manager and he agreed to give me a long-term customer discount. Steve Brown, my service technician notified me that morning when he would arrive and was right on time. He was easy to work with, showed me the wear to the units and explained what he was doing throughout the installation. After removing the heat exchanger, Steve pointed out the evaporator coils needed to be cleaned and gave me a discount for that work too. No one likes an expensive HVAC repair bill, however Ray O. Cook worked with me to ensure it went as smoothly as possible. I highly recommend them and will continue to use them in the future."
Recommended by94%of homeowners
Avatar for Bellas Plumbing - Home  Facebook
Bellas Plumbing - Home Facebook
4.7(
15
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Cool, CA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"I am very pleased with the service I received from Bellas Plumbing. Bill installed a new faucet in my kitchen. The service was quick and the cost was very reasonable. I will use Bellas Plumbing for all of my plumbing needs in the future and will recommend Bellas Plumbing to family and friends. Thank you for giving Bellas Plumbing my name."
Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

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.

Installation costs range from $4,000 to $12,000, depending on unit size, efficiency rating, and labor.

Since your boiler keeps you warm and provides hot water to your home, you’re likely to notice issues with heating in your living space right away. The most obvious sign that your boiler is breaking is not getting any heat or hot water. You might also hear some odd sounds coming from your boiler during operation, the flame in your gas boiler is not blue, the pressure is inconsistent, or your boiler is using more energy than it should. If you notice any of these signs, be sure to call a pro right away.

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.

A home radiator works by using radiation and convection to transfer heat throughout your home. Electric radiators use metal to conduct heat and warm the air, which then rises to warm the room. Steam and hot water radiators work with a boiler and piping system to pump thermal energy throughout the home. Hot water radiators use a boiler to heat the water before circulating it to the radiator, while steam heating radiator systems convert the heated water to steam before circulating it out. When the water or steam cools, it travels back to the boiler to be heated again.

The Cool, CA homeowners’ guide to boiler installation services

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