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Backflow Prevention Testing Cost in San Mateo, CA
Detailed pricing guide with local market adjustments and material comparisons
San Mateo Average
$115–$575
Market Tier
Large City
Cost Breakdown
Backflow Prevention Testing Cost in San Mateo
Large CityLowAverageHigh
$115$345$575
Market Tier
Large City (1.15x)
Large city with competitive market and moderate-high costs
Material Cost Comparison
Backflow prevention device(Budget)
$86–$431Test gauge kit(Mid-Range)
$115–$575Isolation valves(Premium)
$161–$805Factors that affect your cost
- Testing only vs device installation
- Device type (RPZ, double check, PVB)
- Number of devices
- Annual certification fee
- Municipality requirements
Get Quotes in San Mateo
Plumbtree Plumbing & Rooter
San Jose, CA
(408) 516-8746
JM Water Heaters & Drains
San Jose, CA
(408) 839-2124
Bueno Plumbing and Rooter
San Jose, CA
(408) 440-2728
Allstar Plumbing
San Jose, CA
(408) 282-7020Founding Member
Premium spot in San Mateo
Ambassador
Lead the San Mateo community
Founding Member
Premium spot in San Mateo
San Mateo Housing Market
Median Home Price
$1,599,000
Homes for Sale
34
Price per Sq Ft
$1,102
Local Pros
496
Home Service Professionals Near San Mateo
Landscapers 71lender 70Stagers 66Painters 63Cleaners 61Flooring 60multimedia_specialist 53Plumbers 52
Median Household Income
$152,669
Median Home Value
$1,563,200
Median Rent
$3,079/mo
Homeownership Rate
50.8%
Population
103,555
Median Year Built
1964
Source: U.S. Census Bureau, ACS 2023 5-Year Estimates
Track Your Costs
Maintenance
Backflow Prevention Testing
Date
April 2026
Cost
$345
Vendor
Your local pro
Warranty
5-year material warranty
San Mateo average: $115–$575
Before
Issue documented with photos
After
Repair completed, area sealed
Materials Used
Backflow prevention deviceTest gauge kitIsolation valves
Warranty Details
5-year material warranty
Auto-Checkup Created
"Backflow Test" — every 12 months
Added by youApril 2026
Property Health Score
Fair
75
plumbing category +5 pts(70 → 75)
Documentation19/25
Maintenance20/25
Warranty22/25
Investment21/25
Your health score is calculated based on documentation completeness, maintenance currency, warranty coverage, and investment tracking.
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Date:2026-04-05
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Cost FAQ
What is the average cost of backflow prevention testing in San Mateo?
The average cost of backflow prevention testing in San Mateo, CA ranges from $115 to $575. The final price depends on Testing only vs device installation, Device type (RPZ, double check, PVB), Number of devices.
What factors affect backflow prevention testing cost?
Key factors include: Testing only vs device installation, Device type (RPZ, double check, PVB), Number of devices, Annual certification fee, Municipality requirements. In San Mateo, local labor rates and material availability also influence pricing.
How do I get accurate quotes for backflow prevention testing in San Mateo?
Get at least 3 quotes from licensed professionals in San Mateo. Use Fizbo SmartSearch to find and compare local plumbers, read reviews, and request estimates — all in one place.