24/7 Emergency
9.4

Flow Masters Plumbing

Check Availability
6169 Mission St, Daly City, CA 94014 15 Years in Business

Bay Area Service Hub Review

15 years in business, specializing in radiant heating, boiler systems, and complex residential plumbing. Distinguishes itself with a rare perfect 5-star rating across nearly 600 Google reviews and industry leadership as an SFPHCC board member. Best for homeowners seeking high-end expertise for heating systems or major plumbing renovations.

Evaluation Scores

Workmanship
9.5
Quality of work performed
Customer Service
9.5
Responsiveness & communication
Pricing
9.0
Clear & honest pricing
Reliability
9.5
Consistency & dependability
Expertise
10.0
Technical skills & certifications
Warranty Support
8.0
Post-service coverage

Essential Q&A

What makes this contractor stand out?
They are industry leaders in radiant heating and boiler systems, winning global awards from Lochinvar and serving as designated plumbers for the San Francisco Decorator Showcase House.
Who should hire this contractor?
Homeowners with hydronic heating systems, boilers, or those planning complex bathroom renovations requiring high-level technical expertise.
Insider tip
For complex radiant heating issues, customers specifically recommend asking for technicians Connor or Juan, who are frequently praised for their diagnostic skills.

Frequently Asked Questions

Is this contractor licensed and insured in California?
Yes. License #966337 is active with the CSLB.
Does this company offer 24/7 emergency services?
Yes, they offer 24/7 emergency response for urgent plumbing issues.
What kind of warranty is provided on their workmanship?
They provide a 2-year warranty on workmanship and honor manufacturer warranties on parts.
Do they provide free estimates or flat-rate pricing?
Yes, they provide free estimates and use an upfront pricing model.
How long has this business been serving the Bay Area?
They have been serving the San Francisco Bay Area since 2011.
Are their technicians background-checked and certified?
Technicians are Certified Hazard Recognition Specialists and the company is a member of the SFPHCC.

Platform Scorecard

Cross-platform reputation comparison

G Google
5.0 /5
618 reviews
Y Yelp
4.7 /5
53 reviews
BBB BBB
A+
0 complaints (3 yr)
Diamond Certified
Certified
Checkbook.org
0%
superior rating

Services Offered

Backflow Testing Boiler Repair & Installation Drain Cleaning Heat Pump Water Heaters Hydro Jetting Pipe Repair Radiant Floor Heating Repiping Sewer Line Replacement Sump Pump Installation Tankless Water Heaters Trenchless Sewer Repair Water Heater Installation

Areas of Expertise

High-Efficiency Boilers Radiant Heating Systems Seismic Gas Shutoff Valves Trenchless Sewer Replacement

Certifications

Certified Hazard Recognition Specialist NARI Accredited Remodeling Company SFPHCC Board Member TECH Clean California Participating Contractor

Authorized Dealer

Lochinvar

Service Areas

Belmont Burlingame Daly City Millbrae Pacifica Palo Alto Redwood City San Bruno San Francisco San Mateo

Rebate & Incentive Expertise

This contractor can help you navigate:

TECH Clean California

Professional Memberships

SFPHCC

License Details

Status Active
Classifications
C-36 - Plumbing C-16 - Fire Protection
Issue Date 2011-10-04
Expires 2027-10-31
Bond Amount $25,000
Disciplinary Actions None

Verify This Information

All data sourced from official platforms

Check Availability