Backflow Preventer Testing and Installation, Denver CO
A backflow preventer stops contaminated water from being pulled back into the drinking supply. Irrigation systems, boilers, and most commercial properties are required to have one, and required to have it tested on a schedule by a certified tester.
- Annual testing for irrigation and commercial assemblies
- Repair and rebuild when a device fails its test
- Paperwork completed for the water purveyor
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What it is
Backflow preventer testing Backflow preventer testing is an inspection of a backflow prevention device to confirm it still stops contaminated water from flowing backward into the clean drinking water supply.
Many Denver-area water providers require annual backflow testing on irrigation systems and certain plumbing setups, so a missed test can put a homeowner out of compliance.
Testing is a compliance requirement, not a suggestion
Water providers require certified annual testing on backflow assemblies serving irrigation, fire lines, and commercial fixtures. A failed or untested device can mean a notice, a fine, or a shutoff. The test itself is quick when the device is accessible and healthy.
- Certified testing with calibrated gauges
- Rebuild kits for common assemblies rather than automatic replacement
- New installs sized and placed for future testability
- Reports filed so your records stay current
When you need backflow service
- Annual test notice from your water provider
- New irrigation system or commercial fixture install
- Device is leaking or dumping water from the relief port
- Property changed hands and records are missing
- The assembly froze over winter and was not drained
What the service covers
- Certified test of the assembly with calibrated equipment
- Identification of device type: RPZ, double check, PVB, or AVB
- Rebuild or repair of failed check valves and relief ports
- Replacement when the body is cracked from freezing
- Correct installation height and clearance for future testing
- Test report completed and submitted
What to expect and how the work gets done
- 1
Locate and identify
Find the assembly and record make, model, size, and serial number.
- 2
Test
Run the certified test procedure and record the readings.
- 3
Repair if needed
Rebuild the failed component and retest rather than replacing outright.
- 4
Report
Complete the paperwork the water provider requires.
Credentials, reviews, and company proof
- Colorado Master PlumberFixture and appliance work is permitted and code-compliant, not handyman work.
- Plumbing Contractor license 2110Licensed to pull permits and pass inspection on gas, water, and drain work.
- Serving Denver since 2006Two decades of Front Range water chemistry, altitude, and inspection practice.
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What affects backflow cost
A passing test on an accessible device is the simple case. Freeze damage is the expensive one.
Need help right now? 24/7 emergency plumbing service. Planning a larger repair? See financing options.
- Device size and type, since RPZ assemblies take longer than a double check
- Number of assemblies on the property
- Access, including vaults, crawlspaces, and locked enclosures
- Rebuild kit versus full assembly replacement
- Freeze damage repairs on a device that was not winterized
- New install piping, supports, and drainage for a relief discharge
Frequently asked questions
Licenses, credentials, and company proof
- Colorado Master PlumberLicense MP-18927
- Colorado State Plumbing ContractorLicense 2110
- Family Owned & OperatedServing Denver since 2006, 20 years
- Better Business BureauAccredited Business, A+ rating
- Angie's List Super Service Award2012 through 2017
- Serving Denver since 2006Residential and commercial properties across the metro
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Due for your annual backflow test?
Certified testing with the report filed for you.