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Best boiler repair pros near Millbrae, CA

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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon691
    Verified boiler repairs reviews

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

Avatar for Legacy Plumbing And Heating
Legacy Plumbing And Heating
5.0(
19
)
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 Millbrae, CA and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Drew from Legacy Plumbing came out IMMEDIATELY to our rescue because not only were all toilets and showers unusable because water would flood downstairs but we had a birthday get-together with family happening within the hour. Drew was very knowledgeable and quickly fixed our clog and we needed a replacement part for an obvious leak. Legacy Plumbing is super honest, and you don't feel like you're getting ripped off with unnecessary b.s.. This is the second time we've called and because of the great job he did on our last major issue with our old pipes, we called him again. The cleanliness, effeciency, and honesty of this company is why I felt compelled to rave about them and let people know in a review. Definitely my plumber and business to recommend from here on out."
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+4

Recommended by100%of homeowners
Avatar for Service Champions Heating & Air Conditioning
Service Champions Heating & Air Conditioning
4.6(
688
)
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 Millbrae, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"The team of four was very professional and performed an excellent job in a record period of time. Just one day to take the old furnace away, replace all the old boots and duct work and install the new furnace. They paid a lot of attention not to damage or dirty the floor/carpet. I am very happy with their performance. They may not be the cheapest on the block but it was all worthed and you only have to do that once in your lifetime."
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+42

Response time9 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for PrimeWork Construction
PrimeWork Construction
4.8(
104
)
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 Millbrae, CA and surrounding areas

In business since 2012

Free estimates

"Joni an d his crew renovated our master bathroom and part of our kitchen. The bathroom renovation involved rebuil ding the shower (the original one had a leaky basin) and building a beautiful new vanity with a match ing set of cabinets. The kitchen renovation invoved a lot of retiling which all looks great. They also helped us fix our pipes after somne damage they had.I would definitely hire them again."
House Renovation - Brian Project
House Renovation - Brian Project
House Remodeling Mountain View
House Remodeling San Jose Project
House Remodeling Milpitas Project

+468

Recommended by100%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
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 Millbrae, CA and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Excellent service, very fast response to my request for service, picked up laptop, diagnosed issues. Initially thought it was an OS update issue but the hard drive had failed along with other components (including 'CPU). Because other components were involved, a new solid state hard drive was put into a laptop with a working processor - same type CPU as in the failed unit. The laptop was repaired and returned in less than a week. This company picked up and dropped off the laptop (driving from Huntsville, AL (about 60-70 minutes)-- great service in this covid environment. I would recommend this company to my family./friends and will use again."
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
Avatar for MGM Construction
MGM Construction
5.0(
8
)
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 Millbrae, CA and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"MGM Construction provided excellent work. Adolfo and Gerardo were responsive and dependable. They completed the work in the time allotted and were willing to complete other house repairs such as floor sanding, window and ceiling repairs, etc. The brothers are so easy to talk with and provided valuable professional advice. Their pricing is reasonable and fair. We will hire them again and highly recommend them to others."
Bathroom Remodeling
Remodeling - Kitchen & Bathroom Project
Remodeling -  Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+28

Recommended by100%of homeowners
Avatar for HVAC Oren Services
HVAC Oren Services
4.5(
17
)
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 Millbrae, CA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"Great job Rodolfo & Fernando did. I am happy that it was done! Good service . They phoned to let me know they were on their way for our scheduled time. They were quick, thorough & finished in just 1 hr +. My neighbor is asking about them because she also needs to have it done. Other companies quoted much more for the same services done."
Air, Furnace and Dryer Vent Cleaning
Mattress and Carpet Cleaning
Recommended by93%of homeowners
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Boiler Repair FAQs, answered by experts

Repair costs typically range from $200 to $1,500, depending on the issue, such as leaks, burner malfunctions, or thermostat failures. Complex repairs involving heat exchanger replacement can be more expensive.

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

Blockages can occur for various reasons, primarily linked to the accumulation of debris or substances within the heating system. Common causes include the buildup of sediment, rust, or mineral deposits inside the boiler or its pipes, hindering water flow and heat transfer. Additionally, air pockets or trapped gasses can impede circulation. In central heating systems, sludge or corrosion within radiators can obstruct the flow of hot water. External factors like frozen pipes in winter can also lead to blockages. Regular maintenance will help prevent blockages and ensure efficient boiler operation.

It can be difficult to determine the cause of a coolant leak unless you have the unit inspected by a certified professional. Most coolant leaks are caused by wear and tear on seals and joints. This typically happens five years after a unit is installed. Additionally, faulty or worn compressors, evaporator coils, and condenser coils can also cause leaks.

The Millbrae, CA homeowners’ guide to boiler repairs

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