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Best boiler repair pros near Pasadena, CA

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    Average homeowner rating
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    Verified boiler repairs reviews

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

Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)
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 Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Great professional service. Showed up next day to fix my AC. They found and repaired the previous work done by another company. If you want the work done correctly and you want to pay fair pricing, call them. The previous company I used were not honest and sold me fixes I did not need and did not repair the things that needed to be repaired. I think they did this so they could continue to come out and charge me for things like adding freon to my AC but never repairing the leak which I eventually found myself. The leak was in an outside line, highly visible (once I knew what to look for). I called AC Dave and they fixed it right away and my AC has never worked better."
Additional Photos
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+6

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
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 Pasadena, 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%
62 neighbors recently requested a quote
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 Pasadena, CA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Darrow and his team did an excellent job! During a 100+ degree heat wave, our 2nd floor A/C failed. My prior A/C man had recently retired and I was scrambling.... reviewed Angie's List and made several calls. In several cases, I found myself as caller #10 in the queue. Darrow took the call personally, however, and was able to see us late that day. As a businessman I'm used to moving slowly, assessing, considering alternatives, etc. On this occasion there was no time, had to go with my gut. Mirsky Heat & Air really came through. They spent several hours (6-9pm) testing different options but ultimately found the compressor required replacement. They were able to return a day later and install the replacement. Their price was fair, Victor (his associate) was extremely knowledgeable, their work was first rate... and their response during a crisis was a life-saver! We highly recommend Darrow and his team... they're the Real Deal!!"
CEO & INSTALLER
CRANE
Rheem Puron System
Crane placing unit
Additional Photos

+15

Recommended by100%of homeowners
Avatar for West Tech Mechanical Services
West Tech Mechanical Services
4.9(
97
)
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 Pasadena, CA and surrounding areas

In business since 2008

Credit card accepted

"West Tech came out almost immediately and very promptly. Spent a couple of hours inspected the condenser, coil, furnace, and circuit breaker. He diagnosed that the compressor in the condenser was not working and there was no refrigerant leakage, which is contrary to the opinions of other estimators. He suggested that I change the compressor and repair the blower motor. Because the system is about 22 years old, I insisted on replacing the condenser and the blower motor. Considering all the work that was required, the price was fair and reasonable. The warranty he gave was excellent in addition to the manufacturer's warranty. I was pleased with his work and thoroughness. He was very meticulous and detail oriented besides being knowledgeable. In fact, I found out he is NATE (North America Technician Excellence) certified but he does not advertise as such. I trust this company and highly recommend him."
2.5 ton Trane furnace
Trane Condenser
Trane 10 ton President
Wall Heater
1964 Trane split system

+8

Recommended by95%of homeowners
Avatar for Precision Auto Works
Precision Auto Works
4.8(
43
)
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 Pasadena, CA and surrounding areas

In business since 1994

Credit card accepted

"The dealer wanted $950. Precision did it for $600, as quoted using original mfg. parts. Owner asked what else was wrong with the car and I told him that Toyota wanted to clean the injectors....well the owner here said that cleaning injectors was the biggest scam in the auto industry and went on for five minutes as to why.   When I picked it up, he said my steering was making a small knock and that was the rack and pinion and I could wait until it got worse before having it repaired.  This is a small shop but has integrity.... a rare commodity."
Recommended by92%of homeowners
Avatar for Superior Home Remodeling
Superior Home Remodeling
5.0(
122
)
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 Pasadena, CA and surrounding areas

In business since 1997

Free estimates

"They gave me a great price on my master bathroom remodel, were available soon and the most important, they are reliable company so I decided to hire Superior Home Remodeling. The project manager and his team shoved up on time and it was a great experience to work with them. The outcome is excellent, my master bathroom is top notch! Thank you Superior Home Remodeling!"
Century City: Complete Interior Renovation
The Calvert House: Interior Renovation
Encino: Complete Interior Renovation
Burbank: Master Bathroom Renovation (Structural Walls Relocations)
Beverlywood: Roof, Exterior Paint, & Copper Gutters

+364

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

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 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.

Most HVAC service calls include diagnostic fees, which could include checking on a specific issue you’re experiencing or running through a routine inspection checklist. If you called for a particular problem, the service call will also include an estimate to fix the issue, including materials and labor. Depending on your HVAC technician and the service you requested, you might also get a general inspection of your system components to ensure everything is working as intended.

Leaks, pressure loss, air in the system, burner failures, and thermostat malfunctions are common problems that require professional repair.

Some high-quality steam boilers come with 10-year warranties, but a well-installed, properly maintained model can last at least 20 to 25 years. Learning how to clean a boiler, getting an annual professional service, and keeping up with maintenance and repairs on your heating system are all important for getting the most out of your model. 

The Pasadena, CA homeowners’ guide to boiler repairs

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