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Best boiler repair pros near Paramount, CA

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TRUSTED BY PARAMOUNT, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified boiler repairs reviews

Top-Rated Boiler repair pros in Paramount - Updated Nov 2026

Avatar for HD MECHANICAL INC
HD MECHANICAL INC
4.9(
32
)
Gas Boiler or Radiator Heating System - RepairBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+13 more

Serving Paramount, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"This was by far the best experience I've had when it involves repairs. My heater had been broken for a year. Because I'm on a fixed income, I couldn't afford to replace it. Quotes from others all recommended replacement. HD Mechanical gave me an estimate for repair and it was fixed right away, an at a fair price. Brandon and Tim are the best and are professional and dedicated to getting the job done without trying to upsell to unnecessary replacement. It works fantastic. They also happened to fix my ac as well, with no cost to me. If you are a woman alone, hire this company. They're honest and fair, and provide great service"
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Additional Photos

+14

Response time6 hrs
Response rate100%
58 neighbors recently requested a quote
SINCLAIR HEATING & AIR CONDITIONING LLC
4.9(
86
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Paramount, CA and surrounding areas

In business since 2003

Emergency services offered

Warranties offered

"On Monday, May 12, our A/C wouldn't turn on and was scrambling around trying to find someone to fix our A/C ASAP since this weeks forecast weather is going to be hot.  I called a few repair companies and the closest appointment is on Wednesday.  Left a message with this company and Nick called me back.  Nick came over to fix our A/C on the same day.  He was prompt, friendly, professional and got our A/C working.  I highly recommend this company and I will use their services again.
"
Recommended by98%of homeowners
Avatar for Mirsky Heating & Air Conditioning
Mirsky Heating & Air Conditioning
4.9(
134
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Paramount, CA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"The BEST phone call I have made this year for a service needed in my home was to Mirsky Heating and AIr. I called in the middle of a So. Cal heatwave because my thermostat had stopped working and I needed to replace it. How often does an AC company, in the middle of a heatwave, tell you they can come the same day? NEVER!! Except for Mirsky..Darrow told me that he would try to make it work..and he did...which I will be forever grateful!!! He checked in with me during the day to assure me that he was coming and not to leave work until he was more clear on the time he would be at my home. He showed up with another Mirsky employee named John..they were both super friendly and so helpful. Darrow found the problem and within 45 minutes, the thermostat was replaced and everything was up and running again. I can't say enough how grateful I am to Darrow and Mirsky Heating and Air...I am giving their contact info to all of my friends and will be calling them again for anything heating AC related."
CEO & INSTALLER
CRANE
Rheem Puron System
Crane placing unit
Additional Photos

+15

Recommended by100%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 ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Paramount, CA and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"This company was the second i had out to look at repairing our tankless hot water heater. For over a week the hot water would turn off randomly.  Baltica was my second opinion  for the repairs and i felt really lucky to have found them on Angie's list. The first company told me i needed to replace the entire 5 year old unit for $2200.00. Baltica answered all my questions before coming out,  Marius assessed the condition once  he came out,  the unit was flushed and clean out valves were installed he was very professional.  How nice to work with a company that stands behind their service. 
"
Before and after
Before and after #2
Recommended by100%of homeowners
Home Comfort USA
4.3(
110
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Paramount, CA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"Very prompt, professional, and fast. Diagnosed quickly, fixed quickly, and didn't leave a mess behind for me. Super friendly technician, noticed things and struck conversation just to show a personal, polite side. Would definitely recommend."
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Recommended by86%of homeowners
Avatar for Zenn CA Builders
Zenn CA Builders
5.0(
28
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Paramount, CA and surrounding areas

Free estimates

Credit card accepted

"After many roofing estimates that were incredibly high and came with either no financing or high interest financing, I stumbled upon Zen Builders. Simon was attentive, knowledgeable, and on top of his game. My roof was completed in three days, it's beautiful, and there were NO LEAKS when the rains came a few days later. The workers were professional, considerate, and the clean up was amazing. No trace of having construction in my yard. Because I was so happy with the work, I mentioned to Simon that I would love to have him come back and do a few more projects. I ended up with an even better financing option (both loans are well-within my budget) and a GORGEOUS new patio cover complete with a surprise ceiling fan in the middle! The patio is now white, and they painted the trim of my house to match. They also fixed my heating/AC ducts, insulated my attic, and for free, added plywood, so I can actually store items up there. I have never had an issue getting ahold of Simon or his sister, Kineret (Kerry). When there was an adjustment needed to the air ducts, the workers came out quickly (amid the COVID-19 quarantine) and simply fixed it! I couldn't ask for more! All work took less than a month to complete and I never felt pressured, ignored, or bamboozled. I have recommended Zen Builders to many of my friends. I hope they recover from the imposed quarantine to continue to provide excellent service."
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+124

Recommended by100%of homeowners
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Boiler Repair FAQs, answered by experts

Oil boilers provide reliable heating, efficiency, and long-term cost savings compared to electric options.

Most repairs take 2-6 hours, but extensive repairs or part replacements may require a full day or more, depending on availability.

There are several common types of HVAC systems that you may have, including split systems, hybrid HVAC, duct-free systems, packaged heating and air, geothermal heating, or even portable units for heating or cooling. If you aren’t sure which type is in your home or are looking to install something different, you should consult an HVAC pro to determine which option is right for your heating and cooling needs.

Regular maintenance includes annual inspections, filter changes, and checking for leaks or pressure inconsistencies to improve efficiency and longevity.

Signs of needing a new expansion tank include visible leaks and a dull sound when you knock your knuckles against the tank (working tanks should sound hollow). A malfunctioning tank may also sweat with condensation, cause pipes to create loud noises when the system is turned off, and lead to very high-pressure readings on the boiler’s gauges. When in doubt, call for a professional inspection to find the source of the problem.

The Paramount, CA homeowners’ guide to boiler repairs

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