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Best boiler installation pros near Long Beach, CA

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TRUSTED BY LONG BEACH, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Long Beach - Updated Nov 2026

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

Serving Long Beach, 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 HD MECHANICAL INC
HD MECHANICAL INC
4.9(
32
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Long Beach, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"I’m so glad I called HD mechanical to have my thermostat fixed. We set a time to meet up and he was there on time and very professional. He was very thorough with his work and explained to me all the work he performed. He even checked and serviced my unit, showing me that my filter needed to be changed. Would definitely recommend to anyone who needs and service/repairs done."
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
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+14

Response time6 hrs
Response rate100%
59 neighbors recently requested a quote
SINCLAIR HEATING & AIR CONDITIONING LLC
4.9(
86
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Long Beach, CA and surrounding areas

In business since 2003

Emergency services offered

Warranties offered

"They came out on time and did the inspection. It was determined that the thermostat was broken. We were shown options that he could install right then and there, and told how we could do it ourselves if we wanted a different thermostat. We chose a different one and installed it according to their directions. We have been toasty warm all winter."
Recommended by98%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 Long Beach, 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 Precision Auto Works
Precision Auto Works
4.8(
43
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Long Beach, CA and surrounding areas

In business since 1994

Credit card accepted

"I needed an oil change done on my Mercedes. Dave the owner made sure he had all the right spec fluids for my car when I go there. Connie the friendly receptionist was friendl and efficient.. I was in and out quick all fluids topped off, and potential problems brought to my attention, no sales pitch just good old fashioned honest people. We'll do business with them again. Highly Recommended
"
Recommended by92%of homeowners
Avatar for BALTICA Plumbing-Heating-Air Conditioning-Tankless
BALTICA Plumbing-Heating-Air Conditioning-Tankless
5.0(
13
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Long Beach, CA and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"The representative from Baltica arrived on time. Quickly diagnosed the problem (where previous plumbers could not), fixed the water pressure valve, advised me on do's and don't in use of the Noritz system. He also advised me that I should change the cap on the water heater, which was confirmed by the Noritz representative when I called the company. I would recommend Baltica any day to any one. Knowledgeable and courteous technicians. Reasonable prices. If you have tank-less water heater, don't use just any plumber, use Noritz certified technician. My heaters were previously incorrectly installed by licensed plumber, but he did not have experience with tankless."
Before and after
Before and after #2
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 Long Beach, 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
Avatar for Southland Heating and Air Conditioning
Southland Heating and Air Conditioning
4.7(
160
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Long Beach, CA and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"I am primarily writing this review to relate how Southland Heating and Air responded when we discovered a problem. Once installed, our A/C worked well and we had no problems... around December, after we had been using our heater exclusively (no A/C), I decided to simply run the A/C to test it, blow it out and be sure everything was running well. What I discovered was a BAD smell with the A/C... which we presumed was the dreaded 'dirty sock' syndrome... Needless to say, we were horrified... particularly after spending a lot of money to have AC installed. WELL, I am happy to relate that Southland Heating and Air were VERY responsive, took the time to diagnose the problem and - we feel - went above and beyond to be sure we were satisfied. Ultimately - for whatever reason - our installed HVAC coil was contaminated. Following a few tries at lesser fixes, Southland simply replaced the coil and we were back up and running. Their service guys and technician were highly professional, always on time and truly worked to fix the problem. Since the coil replacement, we have had no problems and we are happy to report that our system runs like a charm. When you are spending a lot of money for this sort of upgrade you truly want to know that your install company stands by their products and work and won't leave you hanging out to dry if and when there is a problem. Southland took care of us and took care of business."
This is the outdoor unit that offers 17 SEER Hyper efficiency and super quiet operation of 54db's compared to 80 plus on older units
notice the low profile, this is about 14 inch wide instead of the traditional 36 wide.
This replaces your old gas heater
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+37

Response time1 day
Response rate100%
Recommended by93%of homeowners
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Install Boiler FAQs, answered by experts

The best time to buy home heating oil is in the summer when the demand is lowest, as the prices are usually lower. However, waiting until the summer to buy is often unavoidable unless you install a separate storage tank. If you have the space for a second tank, you can expect to pay between $1,000 and $4,000 for the oil tank replacement or installation, depending on the capacity and location. You could quickly recuperate these costs, though, by stocking up on heating oil in the summer and avoiding deliveries in the winter when prices are highest.

Steam boilers require flushing at least every six to 12 months to keep them operating effectively for as long as possible. Depending on your water quality and frequency of use, you might need to do this more frequently. The flushing process helps to remove problematic buildup of sediments. While a boiler contractor near you can perform a thorough annual flush, learning how to drain the system yourself means you can do this monthly if you experience speedy mineral accumulation because of hard water. 

If you go to turn it counterclockwise and it won’t turn anymore, it’s open. Like most other valves, you should be able to turn a radiator valve counterclockwise (to the left) to open it and clockwise (right) to close it. To close a radiator valve, turn it clockwise until you meet some resistance and can’t turn anymore, but do so carefully to avoid breaking the valve.

It can take anywhere from four hours to three days to replace a boiler with a new one. How long your particular boiler installation takes will depend on whether you need a gas line installed and if you’re switching to a new boiler system. 

Replacing a combination boiler or standard boiler with the same system should only take four to six hours. Meanwhile, switching from a conventional boiler system to a combination boiler system could take a few days.

The average cost to replace or install a new HVAC system is around $7,500. However, the price can range from $5,000 to $12,500, depending on factors like the size of your home, the type and brand of the unit, and your specific heating and cooling needs. If you only need to replace certain components, the cost will be lower; for example, a new AC unit can cost between $2,200 and $5,500, while a new furnace costs $3,200 to $6,000. If additional work like new ductwork is required, the total cost could be as high as $22,000. It's best to contact a local HVAC company for an accurate quote.

The Long Beach, CA homeowners’ guide to boiler installation services

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