Why San Francisco Homeowners Rely on Hydroflow for their Boiler, Water Heater, and Radiant Heating needs
Licensed Bay Area specialists for high-efficiency boilers, tankless water heaters, and hydronic radiant systems — including the older piping common in SF Victorians and Eichler homes.
SF boiler maintenance & repair
Pressure checks, flushing, and repairs that protect high-efficiency boilers before a winter failure.
20+ years in Bay Area homes
Deep experience from Victorian flats in San Francisco to Eichlers and hillside homes in Novato / Marin.
Upfront radiant & water heater pricing
Clear written estimates for radiant heating and water heater work — no surprise change orders.
Right-sized system design
We match equipment to your load and piping — including multifamily & HOA jobs — not a one-size swap.
Plumbing & Heating Services Across San Francisco & Marin
Hydroflow installs, repairs, and maintains the systems Bay Area homes rely on every day. Start with the service you need, or explore our San Francisco and Novato pages for neighborhood-specific details.
Boiler repair & installation
High-efficiency boiler replacements, hydronic troubleshooting, and protective flushing for aging SF systems.
Water heaters & tankless
Tank and tankless water heater service sized for your household — including heat-pump and code-ready upgrades.
Radiant heating systems
Slab and hydronic radiant design, remodel support, and repairs for comfortable, even heat.
Leak detection devices
Smart shutoff and monitoring installs that satisfy insurers and catch slab or supply leaks early.
Also see our Eichler plumbing specialists, multifamily & HOA work, and recent projects.
Areas We Serve
Primary service area: San Francisco neighborhoods and Marin County.
San Francisco Plumbing & Heating FAQ
Answers to common questions from homeowners across San Francisco and Marin.
What areas do you serve in the Bay Area?
We serve San Francisco (including the Sunset, Richmond, and Hayes Valley) and Marin County, with a dedicated Novato page for North Bay work. Our crews know local plumbing codes, high water pressure, and the building quirks in each neighborhood.
Why is water pressure a big deal in San Francisco?
SF hills and municipal supply often push pressure above 80 PSI, which stresses fixtures, tanks, and boiler components. We check pressure on service visits and can recommend PRVs or protective upgrades alongside boiler and water heater work.
Do you work on Eichler homes?
Yes — it is a specialty. Many Eichlers in Marin (Lucas Valley and beyond) and San Francisco still run original radiant loops. Sludge in those pipes can destroy a new high-efficiency boiler if you simply swap equipment. Our Eichler plumbing process flushes, cleans, and protects the system so the new boiler lasts. See also our guide on Eichler radiant heating maintenance.
Do you offer free estimates?
Yes. For most projects we provide free, no-obligation estimates: we visit, assess the system, and give transparent pricing before work begins. Request an estimate or call (415) 623-6564.
What is the difference between a boiler and a water heater?
A standard water heater heats domestic hot water for showers and sinks. A boiler can do that and also drive radiant heating for the whole home. Boilers are especially efficient for larger SF and Marin homes with hydronic heat.
Why do I need a leak detection device?
Many insurers (including State Farm) now require or discount smart leak devices. They monitor usage and can shut water off automatically if a leak is detected — critical for slab radiant systems and vacant periods. Learn more on our leak detection page and our post on insurance discounts for leak detection.
Trusted Brands We Install & Service
Core manufacturers we install every week — view all brands.
From the Hydroflow Blog & Projects
Practical guides and real jobs from San Francisco and Marin.
Need Radiant or Boiler Service in San Francisco?
Don’t wait for a no-heat emergency. Contact Hydroflow for a free estimate on boilers, water heaters, and radiant systems.
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