San Francisco's Trusted
Heating Specialists

With over 20 years of dedicated experience, we specialize in the repair and maintenance of steam and hydronic heating systems for San Francisco homes. Licensed, insured, and bonded — and certified backflow testers.

  Licensed & Bonded C-4   20+ Years Experience   5-Star Google Reviews   San Francisco Only

What We Do

Services & Rates

01

Boiler Service
& Repair

$200 / hour

Full service and repair of steam and hydronic boiler systems throughout San Francisco.

02

Backflow
Testing

$125 / device

Certified backflow preventer testing with all City of San Francisco paperwork handled.

03

Volume
Discounts

10% off — 3 or more devices

15% off — 8 or more devices

20% off — 15 or more devices

Ready to schedule? We respond promptly to all inquiries.

Get In Touch →
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Established 2004
San Francisco

Our Story

About Us

We are a licensed, insured, and bonded C-4 contractor with over 20 years of experience servicing steam and hydronic heating systems throughout San Francisco. Experienced with single pipe and two pipe steam, radiant floor, hydronic baseboard, hydronic radiator, hydronic air handlers, and a wide variety of boiler manufacturers.

We strongly believe routine maintenance prolongs the life of your entire system. Residential heating systems only.

We are also certified backflow testers and handle all required paperwork with the City of San Francisco. Over 15 years of backflow testing and repair experience.

(415) 900-6254  —  Call or Text to Schedule
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Client Testimonials

What Our Customers Say

5-Star Google Reviews

"Excellent vendor — was able to diagnose the problem when others failed. The Steam and Hot Water Company estimated costs, yet the costs came in less than estimated. First class company!"

★★★★★
R
Robert Simms 3 months ago

"Dave is a pleasure to work with. He is extremely competent and efficient, and explains your system, the problem, and how to fix it clearly — which is very helpful to the customer. There is no one I'd rather have working on our boiler and hot water system."

★★★★★
D
David Teitel 6 months ago

"Very helpful, knowledgeable, and pleasant to deal with. Showed up on time and took the time to explain in detail what my issues were and options for addressing them. Serviced my hydrostatic heating system — very reasonably priced. Highly recommend."

★★★★★
E
Elizabeth Sinclair One year ago
View All Reviews on Google →
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Need Answers?

Frequently Asked Questions

Do you service commercial heating systems?

Unfortunately, no. We only service single family residential homes. We do not service apartments, multi-unit buildings, or commercial systems.

Do you service condominiums?

It depends. If the boiler belongs to the individual condominium, yes. If it's connected to a centralized building system, unfortunately no.

Do you test backflow preventers for commercial buildings?

Yes, we test backflow preventers for both residential and commercial buildings.

Do you offer emergency or after-hours services?

Unfortunately, we do not — unless the heating system was initially installed by us.

Do you service outside San Francisco?

Unfortunately, we do not work outside of the City and County of San Francisco.

Best way to schedule an appointment?

Call, text, or email — but email is preferred. We check email constantly and respond promptly.

What is your warranty?

We provide the industry-standard one-year warranty for all repairs.

Still have questions? We're happy to help.

Email Us Directly →
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Get In Touch

Company Information

The Steam and Hot Water Company

60 29th St, #323
San Francisco, CA 94110
License #1123889

(415) 900-6254

Hours of Operation

Tuesday8:00 am – 4:00 pm

Wednesday8:00 am – 4:00 pm

Thursday8:00 am – 4:00 pm

Friday8:00 am – 4:00 pm