Backflow Prevention in Greater Denver Area
Keep your drinking water safe with expert backflow prevention, testing, and repairs today. Brothers Plumbing, Heating, and Electric provides licensed, code‑compliant service across the Greater Denver Area, including Denver, Aurora, and Boulder. We are BBB accredited with an A+ rating and hold a 4.7 rating from 8,435 reviews. Expect upfront pricing, 24/7 availability, and technicians trained on pressure vacuum breaker assemblies. Ask about our $50 off backflow work. Call or book online for fast scheduling.
Why Choose Us
What Our Customers Say
"Jeff came to replace a sprinkler backflow system. He was open, honest, communicative, and did a fantastic job."
"Chuck repaired the pressure vacuum breaker assembly. Professional, knowledgeable, and clearly an expert!"
"My vacuum pressure valve fix is great! He explained everything and had a great personality."
Answers to Common Questions
View All FAQsHow often does a backflow preventer need to be inspected?
Backflow preventers should be tested and inspected once per year. Most municipalities require annual testing, and we provide certified testing and documentation for RPZ and other assemblies. For sprinkler systems, schedule the check before irrigation season to catch leaks and ensure code compliance. If parts are worn, we can rebuild; freeze-cracked bodies need full replacement. We serve Denver, Thornton, and nearby communities.
<br/> Updated: 2025-12-21 00:00:00 <br/>Need help in Thornton, CO? Call (720) 994-7055 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNNeTZ1OWlRRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgICMy6u9iQE%7CCgwI77qTtgYQ2MLpqQI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzdHFUSk1BEAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID3tqTJMA%7CCgsIp5DauQYQqKvRZQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUR4aWFPaG9nRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDxiaOhogE%7CCgwI9p2TpAYQiJaXkAI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUQxNDZ2YW53RRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID146vanwE%7CCgwIxpL3rAYQyPurggM%7C?hl=en-US[4] https://www.brothersplumbing.com/louisville-sewer-repair/[5] https://www.brothersplumbing.com/drain-cleaning/cabling/[6] https://www.brothersplumbing.com/parker-sewer-repair/[7] https://www.brothersplumbing.com/drain-cleaning/jetting/[8] https://www.brothersplumbing.com/home-care-club-faqs/[9] https://www.brothersplumbing.com/commerce-city-repiping/[10] https://www.brothersplumbing.com/indoor-air-quality/certifications/[11] https://www.brothersplumbing.com/wp-json/wp/v2/pages/2155How often do backflow preventer valves need to be replaced?
There is no set replacement timeline for backflow preventer valves. Replace the unit when annual testing finds a failure, leaks, or freeze damage. Most municipalities require annual testing to stay compliant. Many valves can be rebuilt with new seals and springs. A cracked body (often from freezing) requires full replacement. Annual inspection before irrigation season is smart. We install, repair, and certify RPZ and vacuum breaker devices for homes and businesses in Denver and nearby cities. <br/> <br/> Updated: 2025-12-21 <br/> <br/> Need help in Thornton, CO? Call (720) 994-7055 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNNeTZ1OWlRRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgICMy6u9iQE%7CCgwI77qTtgYQ2MLpqQI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzdHFUSk1BEAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID3tqTJMA%7CCgsIp5DauQYQqKvRZQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUR4aWFPaG9nRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDxiaOhogE%7CCgwI9p2TpAYQiJaXkAI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUQxNDZ2YW53RRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID146vanwE%7CCgwIxpL3rAYQyPurggM%7C?hl=en-US[4] https://www.brothersplumbing.com/louisville-sewer-repair/[5] https://www.brothersplumbing.com/drain-cleaning/cabling/[6] https://www.brothersplumbing.com/parker-sewer-repair/[7] https://www.brothersplumbing.com/drain-cleaning/jetting/[8] https://www.brothersplumbing.com/home-care-club-faqs/[9] https://www.brothersplumbing.com/commerce-city-repiping/[10] https://www.brothersplumbing.com/indoor-air-quality/certifications/[11] https://www.brothersplumbing.com/wp-json/wp/v2/pages/2155How much does it cost to replace a backflow preventer?
Backflow preventer replacement cost varies by device type (vacuum breaker vs RPZ), size, location, and access. A technician will provide exact pricing after an on-site inspection. Many vacuum breakers can be repaired; RPZ assemblies often include testing and certification. Freeze-cracked bodies require full replacement; worn seals or springs can be rebuilt. Most municipalities require annual testing for RPZ and similar assemblies. We serve Denver, Thornton, and nearby areas. Promotions may apply: $50 off backflow work or $250 off vacuum breaker/backflow preventer.
<br/><br/> Updated: 2025-12-21 <br/><br/> Need help in Thornton, CO? Call (720) 994-7055 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNNeTZ1OWlRRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgICMy6u9iQE%7CCgwI77qTtgYQ2MLpqQI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzdHFUSk1BEAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID3tqTJMA%7CCgsIp5DauQYQqKvRZQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUR4aWFPaG9nRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDxiaOhogE%7CCgwI9p2TpAYQiJaXkAI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUQxNDZ2YW53RRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID146vanwE%7CCgwIxpL3rAYQyPurggM%7C?hl=en-US[4] https://www.brothersplumbing.com/louisville-sewer-repair/[5] https://www.brothersplumbing.com/drain-cleaning/cabling/[6] https://www.brothersplumbing.com/parker-sewer-repair/[7] https://www.brothersplumbing.com/drain-cleaning/jetting/[8] https://www.brothersplumbing.com/home-care-club-faqs/[9] https://www.brothersplumbing.com/commerce-city-repiping/[10] https://www.brothersplumbing.com/indoor-air-quality/certifications/[11] https://www.brothersplumbing.com/wp-json/wp/v2/pages/2155How much does backflow testing cost for residential properties?
Pricing for residential backflow testing varies by device type and site conditions. A technician confirms final cost after inspection; service includes certified testing and documentation. Key factors: RPZ vs vacuum breaker, accessibility, and any needed repairs. Many municipalities require annual testing, so scheduling before irrigation season helps avoid delays. We provide on-site repairs and replacements for freeze-damaged units. Promotions may apply, such as $50 Off Work Performed on Backflow Prevention. We serve homes in Denver, Thornton, and nearby.
<br/> Updated: 2025-12-21 <br/>Need help in Thornton, CO? Call (720) 994-7055 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNNeTZ1OWlRRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgICMy6u9iQE%7CCgwI77qTtgYQ2MLpqQI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzdHFUSk1BEAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID3tqTJMA%7CCgsIp5DauQYQqKvRZQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUR4aWFPaG9nRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDxiaOhogE%7CCgwI9p2TpAYQiJaXkAI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUQxNDZ2YW53RRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID146vanwE%7CCgwIxpL3rAYQyPurggM%7C?hl=en-US[4] https://www.brothersplumbing.com/louisville-sewer-repair/[5] https://www.brothersplumbing.com/drain-cleaning/cabling/[6] https://www.brothersplumbing.com/parker-sewer-repair/[7] https://www.brothersplumbing.com/drain-cleaning/jetting/[8] https://www.brothersplumbing.com/home-care-club-faqs/[9] https://www.brothersplumbing.com/commerce-city-repiping/[10] https://www.brothersplumbing.com/indoor-air-quality/certifications/[11] https://www.brothersplumbing.com/wp-json/wp/v2/pages/2155
Helpful Tips & Maintenance Advice
View All BlogsHow to Protect Your Pipes from Winter Freezes
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Service Areas We Cover
What areas do you serve for backflow prevention?
We serve the Greater Denver Area, including Denver, Aurora, and Boulder. See the full list of cities we cover below for quick scheduling near you.