San Francisco Bay Area's Top-Rated Plumbing Team
Licensed, insured & 5-star rated since 2011. Same-day repairs, installations, and 24/7 emergency service — backed by our 2-year workmanship guarantee.
Residential & Commercial Plumbing & Heating
One call handles it all — from a dripping faucet to a full repipe, water heater install, or radiant heating system.
Emergency Plumbing
Burst pipes, major leaks and no-water calls — answered around the clock.
Call NowDrain Cleaning
Slow or clogged sinks, tubs, toilets and main lines cleared.
Call NowHydro Jetting
High-pressure clearing for grease, scale and root blockages.
Call NowWater Heater Repair & Replace
Tank repairs, full replacements and new installations.
Call NowTankless & Heat Pump Heaters
High-efficiency upgrades for endless hot water.
Call NowSewer Line Repair & Replace
Cracked, collapsed and root-damaged sewer lines restored.
Call NowSewer Inspection & Trenchless
Camera diagnostics and no-dig pipe replacement.
Call NowPipe Repair & Repiping
Leaking, corroded and aging pipework replaced.
Call NowWater Leak Detection
Hidden slab, wall and underground leaks pinpointed.
Call NowGas Line Install & Repair
New gas lines, leak repairs and code-compliant work.
Call NowBoiler & Radiant Heating
Boilers, radiant floors, furnaces and mini-splits.
Call NowWhole-House Water Filtration
Filtration and softening for cleaner water at every tap.
Call NowFinancing, Rebates & Member Perks
Comfort upgrades shouldn't break the bank. Ask us how to make your project affordable and rebate-ready.
Home Improvement Financing
Flexible financing options so a new water heater, repipe, or heating system fits your monthly budget.
Ask about plansEnergy Rebate Programs
We help you maximize rebates on energy-efficient upgrades — with 67 heat pump water heaters installed since 2023.
Rebate-ready installsMembership Benefits
Exclusive memberships with added perks and priority service for members across the Bay Area.
Priority serviceFinancing and rebate availability confirmed by phone based on your project.
Getting Help Is Simple
No runaround. Just a straightforward path from your first call to a job done right.
Call & Tell Us What's Wrong
Speak with a real person, day or night. We'll get the details and schedule same-day service when you need it.
Clear Plan, No Surprises
A licensed pro diagnoses the issue and walks you through your options — with honesty and transparency before any work starts.
Fixed Right, Guaranteed
Expert workmanship that meets code and safety standards, backed by our 2-year workmanship guarantee.
Why Bay Area Homeowners Choose Us
We set a higher standard — with excellence, integrity, and genuine care on every job.
Award-Winning Expertise
1st & 2nd place in Lochinvar®'s global boiler competition, and designated plumbers for the 2020 SF Decorator Showcase House.
Licensed, Insured & Compliant
CA Contractor License C-16 & C-36 #966337. Cal OSHA and building-code compliant on every project.
2-Year Workmanship Guarantee
Every job is backed for two full years — real accountability, long after we leave.
Industry Leaders
Board members of the SF PHCC, BBB A+ rated, and accredited by trusted organizations across the Bay Area.
Same-Day & 24/7 Emergency
Plumbing and heating emergencies don't wait — and neither do we. We're ready around the clock.
Energy-Efficiency Experts
Heat pump water heaters, radiant heating, and rebate-ready upgrades — 67 heat pumps installed since 2023.
What Our Customers Say
"Highly recommend Flow Masters! All their technicians are super knowledgeable, kind and respectful. They have done both planned and unplanned work at our home, and they've been so responsive, timely and effective. They stand behind their work and it's always high quality."
"Flow Master plumbing came to the rescue again when our hot water heater broke. They're experts in boilers and their whole team is amazing — efficient, friendly and thorough. I would definitely recommend them to anyone with hot water issues."
"Flow Masters Plumbing is amazing — Connor came right away when we were concerned there was a smell of gas at our apartment. He came with the perfect equipment and was very thorough in checking areas of the apartment. He made us feel very at ease. Highly recommend."
"Absolutely incredible. I went through 2 different plumbers and a lot of money and my radiant system still wasn't functioning correctly. Conor at Flow Masters obviously knew what he was doing. He got my system running correctly quickly. A++ service."
Trusted, Accredited & Recognized
Serving San Francisco & the Peninsula
Local, licensed, and intentional — providing plumbing and heating services across these Bay Area communities since 2011.
Need a Plumber or Heating Pro Today?
Talk to a real person now — same-day service and free phone estimates on most jobs.
(415) 751-1933