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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.3k+
    Verified boiler installation services reviews

Find Boiler installation pros in Castro Valley

Avatar for DUKES HEATING & AIR CONDITIONING
DUKES HEATING & AIR CONDITIONING
4.8(
135
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"There was no coolant in the unit so that's why it wasn't working. That's why no cool air was coming out of it. I had just purchased my home and I had just moved in and when it got warm, I had started using the air conditioning. I don't know who's responsibility but he was able to put coolant in and it's been fine. That's all I can tell you. It was covered by the insurance company. I did have to pay a little bit but I can't remember exactly. I would have to look it up in my records. He was super. He was just super and I would use him again. I might use him for my routine maintenance just to make sure everything is running properly before anything happens. It took less than an hour. I had a problem with the air conditioning and he contacted me through the insurance company and I was very pleased with the service. As a matter of fact, the agent who had sold the property to me was here because we were trying to work out the insurance details. He actually asked for his card, he asked for Duke's card because he really liked the way he handled the whole service call. So, he probably will use him again. I can't speak for him but he was really great."
Heat Pump Repairs & Installations
Central Air Cut-Ins
Electric Furnace Repairs & Installations
Response time1 day
Response rate100%
30 neighbors recently requested a quote
Avatar for HVAC Utor Services
HVAC Utor Services
5.0(
31
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Castro Valley, CA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Understandably and as expected all HVAC contractors were on high demand and all booked up for several days out, so no one in the area was available until the following week at the earliest. We called Mr. Diego Utor and lime everyone else he was also all booked up; however, he added us to his already full day and said he would do his best to stop over. Diego kept his word and arrived late afternoon that very same day. He quickly diagnosed the problem, which turned out to be a bad capacitor. He replaced the part and also checked the refrigerant level for us. Diego Utor is responsive, courteous, honest and his rates are very reasonable for his services. I would highly recommend HVAC Utor Services to anyone for all of their heating and air conditioning needs, whether it's repairs, routine maintenance, or new service installations."
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+24

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 ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Castro Valley, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"The technicians that came to install our HVAC system were super friendly and accommodating to my many requests about locations of the furnace, vent pipes, the condenser wiring, piping, and the condenser itself. When I asked for a 90 degree boot feeding two registers so the piping could stay high, a technician made a run to a store and found them. I want to give a shout out to Danny Aguilar who installed the furnace with Edgar and Victor. Grant Duran with Jose and Richard did an amazing job installing the vent pipes. Finally Adolph Garcia with Gabriel and later several other technicians I previously mentioned all worked to install the AC system (condenser and its plumbing + electrical). They worked late into the day to complete the job. I was very demanding in where I wanted things installed and requested changes on a regular basis but in all cases I was accommodated."
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+42

Response time9 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for Enlighten Electric
Enlighten Electric
5.0(
28
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Castro Valley, CA and surrounding areas

In business since 1995

Free estimates

"Pann was knowledgable, responsive, did all work correctly, on time, and within budget. He went above and beyond by taking care of issues he uncovered that we were not aware were there. He worked with us to come up with the idea of installing an Internet closet that made it possible to have less visible cables and cords running on our walls. The finished project works great and I appreciate having a clean look behind my TV stand. Running the new electric to the detached garage was hard work. Pann crawled around under our house to pull the new wiring through. He even worked within our tight schedule of 2 weeks! Again, everything works great and we will definitely hire again for future needs."
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+2

Recommended by100%of homeowners
Avatar for Posada's Heating & Air Conditioning
Posada's Heating & Air Conditioning
4.9(
10
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Castro Valley, CA and surrounding areas

In business since 2004

Free estimates

"He came out on time, gave an estimate which was the most reasonable. Arrived when he said. Tougher job than he anticipated d/t poor installation of previous unit so $500 added. Waited until we got to use the AC before writing review...it is noisy but plenty cold. They put paper over the hardwood floorsto protect them. Work finished in 2 days"
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+23

Recommended by100%of homeowners
Avatar for JAZZ HEATING & AIR CONDITIONING
JAZZ HEATING & AIR CONDITIONING
5.0(
8
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Castro Valley, CA and surrounding areas

In business since 1986

Free estimates

Credit card accepted

"It's hard to put into a Yelp review how grateful we are to have found these guys. I am in a predicament to say the least. We hired just about the worst contractor we could have hired. We did our due diligence but they were masters of the con. What can u do? (Everlast construction - beware!!) The problems with our HVAC system were many. It wasn't installed to code, and was even set up in a way where if it was left as is, electrical fires and/or the previous hvac shorting out due to being wired so incorrectly. The guys at Jazz were able to take an incorrectly installed system, cut out my old one unit and safely remove it, then install a new hvac with all the corrections to every line. What we have now is an efficient heater that works - and isn't a fire hazard. Imagine that! This isn't even the nicest thing they did for us. Turns out, the ghost of my crooked contractor was still haunting us. We could not pass inspection without a hers test, yet the person hired previously to complete it, disappeared off the map. Jazz got a new one going, and spent several weeks tracking down all the people and paperwork needed to do one from scratch. Needless to say, it was unprecedented for them, no picnic, and they did it happily. Never wavered, never hesitated and always called back and kept us updated. I would recommend them to my mother. These guys will do a good job. They have a kind vibe and I have no reservations in giving them five stars and propping them up. Would hire them again. Thank you jazz! Edit: these guys have come By three separate times to fix more issues left by the previous inept criminally minded people at "Everlast construction." All three times, no charge, super sweet attitude and just supremely helpful. Hire these guys."
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+3

Recommended by100%of homeowners
Avatar for PrimeWork Construction
PrimeWork Construction
4.8(
104
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Castro Valley, CA and surrounding areas

In business since 2012

Free estimates

"I interviewed four solar companies and settled on Solar Energy Services because of price, product, and layout. The installation was excellent and finished on schedule. The installers were polite and excellent workers. I have shown my installation to several neighbors which resulted with several new installations in my neighborhood by this contractor. Everyone was very satisfied with their installation by this contractor."
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
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Install Boiler questions, answered by experts

Most installations take 2-5 days, including old system removal and setup.

Many HVAC companies offer free quotes and free estimates for repairs and new HVAC systems. Others offer low-cost quotes or apply the cost of the estimates or diagnostics to your final bill if you hire them. Be aware that some companies advertise free HVAC quotes and recoup the costs by charging more for their services. Free HVAC quotes are never truly free—they cost the company time and effort—so be a good customer. Also understand that you may end up paying for free quotes in another way if you don’t hire a reputable company.

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

Hydronic and standard electric baseboard heaters differ in how they operate, their cost, and their performance. Standard convection heaters use electric coils to heat the air directly, while hydronic heaters warm a contained liquid like water or oil, which then radiates heat into the room.

In terms of cost and efficiency, hydronic heaters usually have a higher upfront price but are more energy-efficient and cheaper to run over time. This is because the heated liquid retains warmth, allowing the heater to continue providing heat for a while after the thermostat turns it off. In contrast, electric heaters provide heat more quickly but are less efficient.

Ultimately, the better choice depends on your priorities. If you need a room to heat up fast and have a lower initial budget, an electric heater might be suitable. If long-term energy savings are more important and you don't mind a slower heat-up time, a hydronic heater is likely the better option.

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.

The Castro Valley, CA homeowners’ guide to boiler installation services

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