Same/Next-Day Backflow Testing & Backflow Preventer Repair in Aurora — Serving Denver Metro & Adams County Since 1990
If your property received a backflow test notice, water provider letter, or you suspect a backflow prevention issue, Fox Auro Plumbers provides certified backflow testing, backflow preventer repair, and backflow device replacement throughout Aurora, CO and the Denver metro area. Our 120-person team includes licensed plumbers and certified backflow prevention assembly testers who work on RPZ valves, double-check assemblies, pressure vacuum breakers, and other backflow devices to help you stay code-compliant and protect your drinking water.
24/7 emergency backflow repair & water quality response — speak to a certified backflow technician today
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Top-rated backflow preventer testing and cross-connection control services for homes and businesses
Fox Auro Plumbers has more than 36 years of experience protecting Aurora's drinking water with professional plumbing and backflow prevention services. Our team includes Backflow Prevention Assembly Testers, Journeyworker and Master Plumbers, and cross-connection control specialists who understand Colorado's backflow testing and tagging requirements for RPZ, double-check, and PVB devices. We work closely with local water authorities and property owners to keep devices tested on time, reports filed correctly, and systems operating safely.
Licensed Journeyworker & Master Plumbers with backflow prevention certifications
Certified Backflow Prevention Assembly Tester credentials for annual testing and repairs
"Best of the Best" – Southern Colorado / Denver Metro (Plumbing Contractor)
Quality Business Award – The Best Plumbing in Aurora, plus Angi Super Service Award & Yelp Guaranteed
Fully insured by Next Insurance, Progressive Commercial, State Farm, The Hartford, and Travelers
From Aurora Highlands and Saddle Rock to Aurora Reservoir, Cherry Creek State Park & Downtown Denver
Fox Auro Plumbers provides backflow testing and backflow device repair for homes, HOAs, commercial buildings, restaurants, and irrigation systems throughout Aurora — from neighborhoods like Mission Viejo, Seven Hills, Saddle Rock, Aurora Highlands, and Tallyn's Reach to retail and mixed-use areas around Southlands, Stanley Marketplace, and the Gaylord Rockies Resort. We regularly service backflow devices on irrigation systems, fire lines, boilers, and domestic water services near Aurora Reservoir, Cherry Creek State Park, Aurora Sports Park, and the Denver tech and business districts, where local regulations require testable backflow assemblies to protect the public water supply.
Aurora Highlands, Aurora Hills, Aurora Knolls, Beacon Point, Chambers Heights, Heather Gardens, Heather Ridge, Highpoint, Lakeshore, Meadow Hills, Mission Viejo, Murphy Creek, Pheasant Run, Saddle Rock, Saddle Rock Golf Club, Seven Hills, Smoky Hill, Southshore, Tallyn's Reach, Village East, and surrounding areas
Southlands, Stanley Marketplace, Gaylord Rockies Resort & Convention Center, medical offices, retail centers, office parks, and industrial facilities throughout Aurora and the Denver metro
Aurora Reservoir, Quincy Reservoir, Aurora Sports Park, Cherry Creek State Park, Aurora Hills Golf Course, Great Plains Park, Red-Tailed Hawk Park, Star K Ranch (Morrison Nature Center), and multiple city recreation centers with irrigation and fire lines
Downtown Denver & 16th Street Mall, Denver Tech Center, Greenwood Village, Lakewood, Thornton, Westminster, Broomfield, and more
Certified backflow testing, device repair and replacement, and cross-connection compliance
While many plumbers can handle basic fixtures, Fox Auro Plumbers maintains specialized teams focused on backflow prevention and cross-connection control. Our certified testers and licensed plumbers work on testable backflow assemblies — including RPZ valves, double-check valves (DCVA), and pressure vacuum breakers (PVB) — for domestic water, irrigation, fire sprinkler, and boiler systems. We don't just "sign off a form"; we test, diagnose, repair, and if necessary replace your backflow preventer so your system stays compliant with Colorado regulations and local water authority rules.
Signs you need more than a simple valve check
Backflow prevention assemblies are not "set-and-forget" devices — they contain internal check valves, springs, and seals that wear out over time. Colorado water authorities and cross-connection programs require testable backflow devices to be tested at installation and typically once per year by a certified tester, with additional testing after repairs or suspected backflow incidents.
Letters or emails from your water provider requiring a current backflow test report by a specific deadline
A recent test indicates a check valve or relief valve is not holding pressure or is leaking
Dripping or constant discharge from the relief port on an RPZ device, or obvious leaks around the backflow assembly
New irrigation, fire sprinkler, boiler, or domestic service changes that require a different or upgraded backflow device
Real-estate transactions, lender requirements, or inspections that flag missing or untested backflow preventers
Chemical injection for irrigation, boilers, or other processes tied into potable water lines
Homeowners, HOAs, property managers, and businesses with backflow devices
Fox Auro Plumbers provides backflow testing, repair, and replacement services for single-family homes, multi-family properties, HOAs, and commercial and industrial facilities across Aurora and the Denver metro area. Whether your backflow device protects domestic water, irrigation, fire sprinklers, or process equipment, we help you stay compliant with local cross-connection control requirements.
With irrigation backflow preventers, boiler backflow devices, or whole-home domestic backflow assemblies
With shared irrigation, pool, clubhouse, or fire suppression backflow devices across community properties
For apartments, condos, townhome communities, and mixed-use buildings under city or utility backflow programs
Such as restaurants, medical offices, schools, warehouses, and industrial facilities with multiple testable backflow devices — see our commercial plumbing services
National portfolios that need local Aurora backflow testers to perform annual testing and submit reports on schedule
How freeze-thaw cycles and irrigation seasons affect backflow assemblies
Aurora's high-plains climate brings freezing winters, dry air, and intense sun, along with long irrigation seasons and heavy seasonal watering. These conditions can stress backflow prevention devices, especially those installed outdoors on irrigation and fire lines, leading to cracked housings, worn seals, and internal failures that show up during annual backflow tests.
Freezing temperatures can crack unprotected backflow preventers, especially irrigation devices not winterized properly
Start-up of sprinkler systems reveals leaks, stuck valves, and failed backflow tests after months of inactivity
Continuous irrigation and high usage increase wear on check valves, springs, and seals inside backflow assemblies
Shut-down and winterization is critical to protect backflow devices from freeze damage and ensure they pass tests next year
Choose the right backflow device for your water system and hazard level
Different plumbing systems and hazard levels require different types of backflow prevention assemblies. Fox Auro Plumbers tests, repairs, and installs common device types used under Colorado and local cross-connection control programs, including Reduced Pressure Zone (RPZ) assemblies, Double Check Valve Assemblies (DCVA), and Pressure Vacuum Breakers (PVB). We help you understand which device you have, what it protects, and when it needs testing or replacement.
| Backflow Device Type | Best For | Key Benefits / Trade-Offs |
|---|---|---|
| Double Check Valve Assembly (DCVA / DC) | Moderate-hazard systems such as many domestic water and some irrigation applications | Compact, provides two check valves for backflow protection; cannot be used where a higher hazard level requires an RPZ |
| Reduced Pressure Zone Assembly (RPZ) | High-hazard systems (chemical injection, certain commercial/industrial uses, some fire and irrigation systems) | Provides the highest level of mechanical backflow protection with relief valve; more complex and may discharge water under certain conditions |
| Pressure Vacuum Breaker (PVB) | Many irrigation and sprinkler systems where backpressure is not a concern | Effective against back-siphonage, simpler design; must be installed above highest downstream outlet and cannot protect against backpressure |
| Air Gap | Certain high-hazard or specialty applications | No moving parts and very reliable when installed correctly; may require more space and piping changes |
Backflow preventers must be tested at installation, after repairs, and typically at least annually by a certified tester, per local Colorado jurisdiction requirements. Proper installation height, orientation, and freeze protection extend device life and increase likelihood of passing annual backflow tests.
From scheduling your annual backflow test to delivering reports and tags
We collect information on your backflow preventers (device type, location, size, last test date, and water provider requirements), then schedule a convenient time for backflow testing that meets your deadline and avoids major disruptions.
A certified Backflow Prevention Assembly Tester arrives, shuts down the system as needed, and uses calibrated test gauges to perform the required backflow test procedures for your RPZ, DCVA, PVB, or other assembly, following Colorado and local procedures.
If your backflow device passes, we document the readings and finalize paperwork. If the device fails, we identify the issue (e.g., leaking check valves, relief valve not holding pressure, broken components) and review repair or replacement options with you.
For failed tests, our licensed plumbers repair or rebuild the existing device when practical, or replace it with a new assembly when components are worn beyond repair or codes have changed. After repairs or replacement, we re-test the device to confirm it passes.
We affix a backflow test tag with the tester's credentials, test date, and results, in line with Colorado's tagging requirements, and provide copies of the completed test forms and reports for your records and your water provider.
We maintain records of your backflow devices and test dates and can send reminders for future annual backflow tests so you don't miss deadlines or risk water shutoffs or penalties for non-compliance.
From certified testing to final tagging and reports
Fox Auro Plumbers offers complete backflow prevention services so you don't have to coordinate between multiple vendors for testing, repairs, and paperwork. Whether you manage one device or dozens, we handle the technical work and administrative details.
Certified testers, licensed plumbers, and reliable reporting
When you compare Aurora backflow testing companies, Fox Auro Plumbers offers a rare combination: a large plumbing team, certified backflow testers, and in-house capacity to repair or replace failed backflow devices on the spot. That means fewer delays, fewer missed deadlines, and one accountable contractor for both testing and fixes.
Providing plumbing and backflow services in Aurora, Denver, and surrounding Front Range communities since 1990
Certified Backflow Prevention Assembly Testers using professional, calibrated test gauges for accurate results
Licensed Journeyworker and Master Plumbers for backflow installation, repair, and replacement — fully credentialed
Familiar with Colorado backflow requirements, annual testing guidelines, and local reporting processes for all water authorities
120 skilled professionals and 10 fully equipped service vans to handle single-site and multi-site testing programs across the Denver metro
See how professional backflow service protects your water and compliance
Our backflow projects often start with failed tests, leaking devices, or urgent notices from local water providers. After Fox Auro Plumbers repairs or replaces the assemblies, property owners gain peace of mind knowing their backflow prevention is working correctly and their test reports are on file.
Complete backflow systems maintained to protect your drinking water
Fox Auro Plumbers uses industry-standard backflow prevention assemblies, fittings, and test equipment sourced from trusted manufacturers. Our technicians follow approved testing procedures and cross-connection control practices so your system meets both manufacturer requirements and local Colorado codes.
Testable RPZ, double-check, and pressure vacuum breaker backflow assemblies selected for your hazard level and line size
Proper isolation valves, unions, and drains installed to simplify future testing and servicing of all backflow devices
Professional test gauges calibrated to meet accuracy standards for certified backflow testing in Colorado
Freeze protection, insulation, and installation heights adjusted to device type and Aurora's local high-plains climate
Repairs completed with OEM or equivalent internal parts to restore device performance and reliability after failed tests
Understand when to rebuild a backflow device and when to install a new assembly
When a backflow preventer fails testing, you may have the option to repair or rebuild the device rather than replacing it. In other cases — especially when assemblies are very old, damaged, or not suited to current hazard classifications — installing a new backflow device is the smarter choice. Fox Auro Plumbers reviews your options and helps you decide.
| Option | What It Is | Key Pros | Key Cons |
|---|---|---|---|
| Backflow Repair / Rebuild | Replacing internal parts (springs, seats, seals, check components) and correcting issues inside the existing assembly | Often lower cost than full replacement; preserves existing piping and layout | May not be cost-effective for very old or damaged devices; future failures still possible |
| New Backflow Device Replacement | Removing old assembly and installing a new RPZ, DCVA, or PVB assembly | New device with full service life; may better match current hazard and code requirements | Higher upfront cost; may require piping modifications or additional labor |
From single backflow tests to multi-device programs and replacements
Backflow service costs depend on how many devices you have, device types and sizes, accessibility, and whether repairs or replacements are needed after testing. Fox Auro Plumbers uses an internal backflow cost calculator that factors in labor, test time, parts, and reporting needs to provide clear pricing for Aurora property owners.
| Cost Component | How We Calculate It |
|---|---|
| Backflow Testing Fee | Based on device count, type, and on-site time for certified tester |
| Backflow Repair / Rebuild | Labor + internal parts kit (springs, seals, seats, check components) |
| Full Backflow Replacement | New assembly + installation labor + any piping or insulation modifications |
When backflow prevention isn't optional
Backflow prevention devices are required for many Aurora and Denver-area properties to protect the public drinking water supply from contamination. If your plumbing system creates a potential cross-connection, you likely need a properly installed and tested backflow assembly.
Commercial buildings such as restaurants, medical offices, schools, and industrial facilities under local backflow programs — see our commercial plumbing services
Multi-family properties, HOAs, and mixed-use developments with shared domestic, irrigation, or fire lines
Properties with irrigation systems, especially those using fertilizers, chemicals, or non-potable sources
Sites with boilers, cooling towers, chemical feeders, or process equipment tied into potable water lines
Fire sprinkler systems and standpipes that connect to the public water system
Any property that has received a notice from a water provider requiring annual backflow testing or proof of backflow device installation
More than a checkbox — water safety, compliance, and liability protection
Professional backflow prevention service ensures that your devices actually protect your drinking water, not just meet paperwork requirements. Working with certified backflow testers and licensed plumbers helps you avoid contamination incidents, fines, water shutoffs, and liability if a cross-connection problem occurs.
Proper testing procedures confirm that check valves, relief valves, and shutoffs function as designed — not just assumed
Timely backflow repairs and replacements reduce the risk of contamination and failed inspections
Correct documentation, tagging, and reporting keep you in good standing with local water authorities
Professional advice helps you select the right type of backflow assembly for your system and hazard level
A single, reliable Aurora backflow contractor simplifies testing and compliance across multiple properties and portfolios
Some water safety issues are too critical to ignore or improvise
Backflow prevention devices protect your drinking water from fertilizers, chemicals, and contaminated water that could otherwise be drawn back into the public water supply. Skipping required backflow testing or attempting DIY backflow repairs can lead to unsafe water, fines, or service shutoffs from your water provider. Our certified testers and licensed plumbers follow proper procedures to keep your system safe and compliant.
Answers about annual backflow tests, repairs, costs, and compliance
Most Colorado water providers require backflow prevention assemblies to be tested at installation and then at least once per year by a certified backflow tester, with additional testing after repairs or suspected backflow events. Always follow the schedule in your specific water provider's notice. Contact our backflow testing team for guidance specific to your property and water authority.
If your backflow preventer fails testing, we'll diagnose the problem, provide repair or rebuild options, and if needed, replace the assembly. After repairs or replacement, we re-test the device and submit a passing test report so you remain compliant. Our licensed plumbers can complete repairs on the same visit in many cases.
Backflow testing must be performed by a certified Backflow Prevention Assembly Tester using calibrated test gauges. Colorado law also has specific rules for who can install and tag backflow devices, which is why using licensed, credentialed professionals is important. Fox Auro Plumbers maintains both certifications and licensure in-house for complete backflow services.
Yes. We complete required backflow test forms, tag the device, and provide copies for you and your water provider or third-party reporting system, as required in your jurisdiction. We maintain records so you have documentation available if questions arise in the future.
Absolutely. Our team tests, repairs, and replaces backflow assemblies for HOAs, commercial properties, and multi-site portfolios across Aurora and the Denver metro, coordinating schedules and reporting for all devices. Call us at (720) 914-0988 to discuss your multi-site program.
Your backflow prevention devices, backed by certified testers and licensed plumbers
Fox Auro Plumbers stands behind every backflow test, repair, and replacement we perform in Aurora, CO with certified technicians, licensed plumbing work, and accurate reporting. When you hire us for backflow testing and prevention, we make sure your system not only passes today's test but is set up to protect your water and stay compliant year after year.
Since 1990, homeowners, HOAs, and businesses across Aurora and the Denver metro have trusted Fox Auro Plumbers to handle their backflow testing, repair, and replacement needs — keeping their drinking water safe and their properties in compliance.
When scheduling backflow testing services in Aurora CO, our 120 skilled professionals account for I-225 corridor traffic near Centennial, access road conditions near Denver, seasonal snowpack delays on E-470, and high-altitude freeze-thaw pipe stress across Adams County and Arapahoe County.
Need a certified backflow tester in Aurora CO? Our team of licensed Master Plumbers and certified backflow testers is standing by 24/7. Whether you need drain cleaning, water heater repair, or sewer line replacement — reach out and we'll walk you through your options immediately.
Fox Auro Plumbers is available 24/7 with certified backflow testers and 120 skilled professionals ready to help across Aurora and the Denver metro. View our backflow testing services.
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