Hydroflow is a San Francisco and North Bay plumbing and hydronic heating company owned by Garry Devaney. Services are boilers, radiant heating (including Eichler in-slab systems), tank, tankless and heat-pump water heaters, leak detection, and residential plumbing.

Call or text (415) 623-6564, or email hydroflowsf@gmail.com. Hydroflow can also be reached through hydroflow.info. Include an address, a description of the issue, and photos of the equipment if available.

All of San Francisco, including the Sunset, Richmond, Hayes Valley, Marina, Russian Hill, Pacific Heights, Noe Valley, Mission, Castro, SOMA, Haight-Ashbury and Potrero Hill, plus Marin County and the North Bay, including Novato, Lucas Valley and San Rafael, and surrounding Bay Area communities.

No. Hydroflow does not take walk-ins or customer visits. Work is done at the customer's location.

Yes. Emergency and after-hours service is available, with 24/7 emergency availability for critical multifamily failures. Call or text (415) 623-6564.

Often, yes. That includes same-day like-for-like water heater replacement and same-day diagnosis when a multifamily building's system is down.

Yes. Most projects include an estimate at no charge. Hydroflow assesses the job on site and writes the price before work starts.

Yes. Hydroflow holds California CSLB License #1004731 and is bonded and insured, with general liability and workers' compensation coverage. Certificates are available on request.

Credit card, bank transfer (ACH), and check.

Most installs are $1,500 to $2,000 all-in, depending on the size of the main line.

Residential plumbing, including Victorian and pre-war replumbing. Boiler repair, replacement, installation, commissioning and annual maintenance. Hydronic system design, flushing and balancing. Radiant floor heating, including Eichler in-slab systems. Tank, tankless and heat-pump water heaters. Gas line and venting upgrades for tankless conversions. Leak detection and smart water shutoffs. Water pressure checks, PRVs and expansion tanks. Seismic shutoff valves and water heater strapping. Hot water recirculation pumps. Permits and inspections.

Yes. Work includes pressure-testing, finding leaks in, flushing, and protecting original in-slab radiant loops, and connecting them to new high-efficiency boilers.

Yes. Work includes multifamily buildings and HOAs (commercial boilers, cascaded systems, tankless racks, recirculation, Title 24, annual boiler safety inspections and maintenance agreements). It also includes restaurants, hotels, medical offices, schools and public buildings, offices and retail, property management portfolios, churches and nonprofits, and mixed-use buildings.

Navien, A.O. Smith, Bradford White, Rinnai, Takagi, Rheem, Lochinvar, Viessmann, IBC, NTI, Triangle Tube, HTP, American Standard, Bosch, Baxi and SpacePak, plus Raypak and Laars commercial systems. Hydroflow is a factory-authorized installer for Navien, Lochinvar and Triangle Tube.

English and Spanish.