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Best boiler repair pros near Applegate, CA

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TRUSTED BY APPLEGATE, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon577
    Verified boiler repairs reviews

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

Avatar for Spoor's Heating & Air Conditioning
Spoor's Heating & Air Conditioning
5.0(
11
)
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 Applegate, CA and surrounding areas

Approved

In business since 1925

Free estimates

Emergency services offered

"John Wiltshire was able to fit us in on this super hot day. Wasn't expecting his service until tomorrow. I'm so thankful he found the problem and it didn't cost an arm and a leg. Excellent work, very polite and explained what needed to be done. In no time we had AC again. I would highly recommend. Thank you, Spoor's Heating &Air ?"
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+1

16 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Csc Plumbing Sewer and Drain Service | Chapmans Legacy Plumbing
Csc Plumbing Sewer and Drain Service | Chapmans Legacy Plumbing
4.6(
136
)
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 Applegate, CA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Kermit and his son showed up quickly on the same day I called on a Saturday to replace my water heater and expansion tank. They were both very friendly and professional and performed the exact service I needed without any up-sells or other kind of pressure like a more expensive tank with unnecessary additional warranties. They replaced the old water tank and installed the new one very quickly and I was very happy with the work. Very efficient and professional and I recommend for any plumbing job. Am very happy with my Bradford White 50 gallon water heater and it has been working like a charm for months. It seems to be performing better than the old one too as the water heats up faster and is hotter at the same setting we had before. Thanks a lot Kermit!
"
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Recommended by96%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 Applegate, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Just had the initial diagnostic visit. I was given terrible news (I'll probably end up getting a new furnace $$$), but the technician Ricky was wonderful. He was extremely polite, professional, and friendly. He did a very thorough inspection and then gave me a very thorough explanation of the problems. This included photos he took on the spot of some internal parts (oil leakage, heavy dust & dirt, stress markings).... at no point did I feel like I couldn't trust what he was telling or showing me. He answered every question I had. He went into the "attic" of my Eichler to check the ductwork (via a 14" hole in the closet ceiling, into space so shallow and tight I have no idea how the ductwork was ever even installed), and came out with photos to show me. The company was easy to work with when I had to change appointments, sent me email and text confirmations of everything, and gave me a day-before reminder of the appointment. I had an 8a- 11a window and received a text at 7:50a letting me know the technician was on his way, with a photo of him included. Perfect, perfect, perfect. The visit was $89 but reduced to $39 because I signed up for the MVP membership: $107 for a year which gets me all kinds of free services plus discounts on everything else. It even includes services on my water heater which they did not install! Additionally, they have some really good guarantees, MVP or not. Before leaving he called the office, explained all he'd found, and handed me the phone to set up an appointment with a "comfort specialist". Ariel (on the phone) was also extremely polite, professional, and friendly. These people are trained right! Or they're hiring very well. So, I will be meeting with someone to discuss repairs vs. replacement options. No repair work has been done yet (although Ricky did do a temporary fix that is allowing me to get some heat), so I can't fully review the company. But thus far I'm 100% pleased. This is probably the best experience I've ever had with any kind of repair technician. I've never used them before and have also never written a review before. The experience was just that good. I'll write another when I've finished with them just to give a full review, but so far perfect!"
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+42

Response time9 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for Diamond Heating and Air
Diamond Heating and Air
4.8(
120
)
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 Applegate, CA and surrounding areas

In business since 1990

Free estimates

Credit card accepted

"When it became clear that my existing HVAC system needed to be replaced, I initallycontacted thecompany that was the original maintenance contractor.  They made a proposal for system replacement, but, would not give me a paper contract explaining the complete work to be provided.  Indeed, said contractor proceeded to try to sell me additional items I did not want or need.
I subsequently called Diamond for an estimate.  Bob came to the house and thoroughly explained various options and provided
written contracts for the alternate proposals.  The straight talk approach was really appreciated (especially after the snake oil salesman from the prior vendor).  After a day's review, I authorized Diamond to proceed with the installation.
The Diamond staff showed up on time and finished the installation by the end of the second day.  They were extremely professional and patiently explained what was happening at each stage of the project.  Behing the professional staff, Bob an Elaine Weatherford remained in contact to make sure that I was happy with the work.
My only concern after the project was completed was the interaction between the new system and the smart vent system.  Bob and his staff made sure the my concerns were resolved.
I unconditionally recommend Diamond HVAC sysems to anyone who wants to depend on dealing with honest, no nonsense, business professionals.


"
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Recommended by96%of homeowners
A/C Girl Heating & Air
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 Applegate, CA and surrounding areas

In business since 2001

"I highly recommend A/C Girl to anyone that needs help with their air conditioning or heating needs.  They are very reasonable, accommodating and pleasant to work with. 
Our water heater rusted out and needed to be replaced.  The A/C unit for our house runs parallel to the water heater and the pipes from the A/C unit blocked access our water heater.  The water heater repair company requested that the A/C pipes be moved so they could replace it.  A/C Girl came out, moved the pipes and the water heater was changed.  I called A/C girl back and they promptly replaced the A/C pipes and gave our unit a tune up.
 
They were willing to work with our schedule to perform the needed work.  We kept changing dates on them due to problems encountered with our water heater installation. 
"
Recommended by87%of homeowners
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Boiler Repair FAQs, answered by experts

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

It's possible that your oven's gas ignitor will wear out before the rest of the appliance. An ignitor may last about eight years before it needs replacing. In some cases, cleaning the ignitor to remove any built-up food and debris may help to prolong its life. Replacing the ignitor in a gas oven costs an average of $200.

Properly maintained stucco can enhance insulation, reducing energy loss.

There are many signs and symptoms to look out for that can indicate that your HVAC system needs repair, including the following:

  • Your indoor air is uncomfortably hot or cold.

  • Your energy bills suddenly increase without explanation.

  • Your AC is blowing warm air or not blowing air at all.

  • You notice leaks around your HVAC equipment.

  • Your equipment makes unusual noises during operation.

  • You notice strange odors coming from your equipment.

  • You notice that the humidity in your home is higher than normal.

  • The thermostat no longer seems to match the actual temperature.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

The Applegate, CA homeowners’ guide to boiler repairs

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