Mark SkinnerThere’s nothing worse than reaching for the heat on a chilly coastal evening and finding your boiler completely dead. Cold rooms and freezing water mean you need a fast, dependable technician who can sort it out without emptying your wallet.
To make things easier, we tracked down the best boiler repair services in San Diego. Here are our top picks to get your heat back online today.
How much does boiler repair cost in San Diego?
Standard residential boiler fixes in the area usually run between $150 and $900, depending on how complex the job is. Routine tune-ups and commercial work follow their own pricing scales.
| Service Type | Estimated Cost Range |
| Standard Residential Repair | $150 – $900 |
| Annual System Maintenance | $100 – $300 |
| Major Commercial or Complex Overhaul | Exceeds $900 |
1. Total Service CA
Website: https://www.totalserviceca.com/
Address: 2739 Via Orange Way, #115, Spring Valley
Contact: (858) 533-2629
Hours: Monday – Friday, 8:00 AM – 6:00 PM
Waking up to a freezing house is stressful, but Total Service CA makes it easier with around-the-clock emergency support and flexible weekend appointments.
They also give free estimates before you commit to anything, and all their heating work comes backed by a solid warranty.
Their licensed and insured technicians clearly understand the mechanical side of home comfort systems, which is great for your peace of mind.
Because their office sits out in Spring Valley, though, anyone up north or along the coast might see slightly longer travel times for standard visits.
Their crew also splits their focus across trades like plumbing and solar instead of heating alone, so they can get stretched thin during a sudden cold snap.
2. RDZ Plumbing and Drains
Website: https://www.rdzplumbing.com/
Address: 4681 36th St
Contact: (619) 760-2899
Hours: Available 24/7
If another company hits you with a sky-high quote, RDZ Plumbing and Drains offers a price match guarantee to beat any written plumbing estimate.
They handle both homes and commercial jobs for homeowners’ associations (HOAs), and they communicate in both English and Spanish for easy coordination.
What stands out is the free, same-day estimates paired with 24/7 emergency availability, which makes them very responsive.
When a friend of mine used them last winter, she said the technician showed up within the hour and explained the problem clearly.
On the downside, their work spans two regions rather than just our city, so they’re not strictly local specialists. Their focus also leans heavily toward general plumbing like water heaters and drains, so boiler-specific help isn’t their main lane.
Meticulous and accommodating
I had RDZ Plumbing install an electric hybrid water heater in my home here in the Bay Area. Manuel, Juan, and Frederico work very well as a team. They were meticulous and accommodating throughout the whole process. The price was very good too!
- Tom Vohs | Google Review
3. Mauzy Cooling Heating Plumbing Electrical
Website: https://mauzy.com/
Address: 1456 Magnolia Ave, Ste E, El Cajon
Contact: (619) 439-0246 | [email protected]
Hours: Available 24/7
With over 50 years of family history in the area, Mauzy is a multi-generation business that handles heating, ventilation, and air conditioning (HVAC), along with plumbing and electrical work.
They send North American Technician Excellence (NATE) certified experts out in fully stocked vans so most repairs wrap up in a single visit.
I was impressed that they offer 24/7 emergency support across the county. They even waive the diagnostic fee if you go ahead with the actual repair.
Just know their premium flat-rate pricing skews toward the higher end, which can feel steep for quick, minor fixes.
Also, after-hours emergency calls come with extra service fees, so a midnight breakdown will cost a bit more.
He went the extra mile
Mr. Anderson was a consummate professional. He is affable, knowledgeable and courteous. He diligently took care to respect our home. He went the extra mile in checking our system and expertly explained all that was necessary to restore it to full operationality. He explained all the repair options without any hint of hard sell.
- David “Jack” Mathews | Google Review
Excellent job with great attention to detail
Joshua from Mauzy Plumbing came in to fix our plumbing issue. He was very detailed explaining the repair and cost associated with repairs. He did an excellent job with fixing the issue and checking everything and cleaning after himself. I really appreciated his professionalism and attention to detail. Although the service is not cheap, knowing that everything is done properly is very comforting.
- Tug Gerboga | Google Review
4. ASAP Drain Guys & Plumbing
Website: https://www.asapdrainandplumbing.com/
Address: 12150 Dearborn Pl, Poway
Contact: (760) 762-4045
Hours: Available 24/7
With over 15 years of business in the area, ASAP Drain Guys & Plumbing runs a dedicated fleet of certified heating experts who cover everything from residential tune-ups to commercial code inspections.
They also take on heavy industrial work, gas line repiping, and even share private video links for detailed inspections.
I actually chatted with one of their technicians at a local event, and his grasp of closed hydronic systems was genuinely impressive.
Plus, I love that they offer around-the-clock emergency care with no hidden surcharges, so any dispatch fee goes straight toward fixing your system.
If you have a modern, high-efficiency boiler, though, they note these units can need maintenance as often as quarterly, which adds to long-term costs.
Their base also sits in an industrial park out in Poway, so they run dispatch-only with no public storefront to visit.
Professional, knowledgeable, and kind
Gustavo did an excellent job with the repair of our plumbing problem. He was professional, knowledgeable, and kind. He took care of business and did his job well. We are grateful and we highly recommend him and the company.
- Theresa | Google Review
The final cost matched the estimate
We had an emergency and hired this plumbing company, and I couldn’t be more impressed. From the moment I called, their communication was clear, friendly, and professional. The technician arrived right on time, quickly assessed the issue, and explained everything in a way I could easily understand. The repair was done efficiently, with great attention to detail, and the final cost matched the estimate, no surprises.
- Au S. Chanco | Google Review
5. Williams Mechanical Co
Website: https://www.williamsmechanicalco.com/
Areas Served: San Diego and nearby areas
Contact: (760) 908-8896
Hours: Available 24/7
Williams Mechanical Co is a veteran-owned, family-run team that brings real discipline to the work. They handle all HVAC, plumbing, and electrical repairs in-house without subcontractors and work across major brands and fuel types.
What’s impressive is that they hold active certifications with the California Contractors State License Board (CSLB), the Environmental Protection Agency (EPA), and the Bureau of Household Goods and Services (BHGS).
And I like that they conduct thorough safety checks, including water quality testing, to stop scale buildup before it starts.
Their main base is up in Fallbrook, though, so clients in central or southern neighborhoods might face longer dispatch windows or travel fees.
They also use a bundled flat-rate system that keeps invoices simple but skips an itemized breakdown of labor versus parts.
So if you’re also booking pool cleaners or setting up air duct cleaning this season, that non-itemized model takes a little planning to budget for.
Great experience start to finish
Great experience start to finish. Tyler was professional, amiable, and excellent at describing the problems and solutions for my small micro leak and also getting hot water to my kitchen faster. I’m a very happy customer.
- Teri Darrenougue | Google Review
