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Backflow Prevention Services in Denver, CO

A Trusted Name In Backflow Prevention Replacements and Testing Since 1978

When water flows down your drains, it’s easy to forget that it relies on a critical balance of pressure to keep it flowing smoothly. If there’s back pressure or siphonage, wastewater can suddenly flow in the opposite direction– causing a host of unwanted problems! To prevent this from happening in your home or business, contact the professionals at Cooper Heating and Cooling. We offer comprehensive backflow prevention services throughout the Denver metro area, all backed by the 5‑star reputation we’re known around town for. So, for fast scheduling, honest prices, and trusted workmanship, call us today!

Emergency Services

From highly-trained plumbers

100% Satisfaction

Proven by our A+ BBB rating

Licensed and Certified Plumbers

As required by the CDPHE for backflow testing

Expires July 31, 2024

$50 Off Any Service Call

Coupon only valid at Cooper Heating and Cooling. This coupon is for the use by original receipt only. While supplies last, no substitutions and no rain checks issued. Coupon must be applied at the time of service. Limited to one coupon or offer per service location. May not be used with any other coupon or offer. No cash value. Some restrictions may apply. Ask manager for details.

How much does backflow prevention cost in Denver?

Low price:$234

Our avg price:$1,200

High price:$5,000

Why are our prices slightly higher?

As one of Denver's highest-rated plumbing contractors, we go above and beyond to deliver world-class service. This means you can count on a job done right (the first time!) and from highly-trained technicians who aren't happy until you're happy. Simply put: we offer the best value that money can buy.

Backflow prevention cost factors:

Diagnostic fee

If you smell sulfur-like odors, notice discolored water, or your drains seem to take longer to clear, you may have a backflow issue that needs attention. Contact the Cooper Green Team today, and we'll get to the bottom of it. For our time and labor, we charge a $119 diagnostic fee. If you need help after 4 PM on weekdays, this fee is $219; on holidays, it's $328.

New installation

If you don't have any backflow prevention in place, we'll need to install a backflow preventer device that stops potentially hazardous wastewater from contaminating your home. We can also install check valves that detect sudden changes in pressure, so you're alerted to problems as soon as possible.

Repairs and maintenance

Backflow preventers must be repaired and maintained periodically like the rest of your home's appliances and systems. Depending on the problem at hand, your costs will vary. However, you can always count on us for honest pricing and advice that serves your best interest only.

Need emergency backflow support?

The fastest way to reach us is by giving us a call. We're open 24/7 throughout Denver and the surrounding areas. We'll send a qualified technician to inspect your plumbing concerns and get an efficient solution in place ASAP!
Schedule Service

Our backflow prevention service process

  • Schedule a diagnostic

    Contact with wastewater can threaten your household's health. If you suspect a backflow issue, Cooper is a great name to remember. We're open 24/7, after all! Call Cooper's professional plumbers at (720) 605-7270 to schedule a diagnostic. You can also book online, and we'll reach out to secure a convenient appointment for you.

  • We provide upfront pricing

    Once we've had a chance to inspect your plumbing system thoroughly, we'll provide your most cost-effective solution. That solution may be a repair to your existing backflow device, a replacement, or even a fresh installation. If you're simply looking to be prepared, we test backflow devices, too!

  • We perform expert workmanship

    Once you've signed off on your quote, we'll get straight to work on your backflow repair, installation, or maintenance service. We work fast and efficiently, so the odds are in your favor that we'll have the job done in just one visit to your home (usually about an hour or two).

  • Share your feedback

    We take the experiences and opinions of our customers seriously. Following your backflow prevention service, we want to hear from you. If anything could be improved, don't hesitate to tell us about it. We're dedicated to 100% satisfaction–no exceptions!

Why Choose Us

Cooper Heating and Cooling has served Denver homeowners and businesses with exceptional quality HVAC, plumbing, and electrical services for over four decades. Whether you need repairs, a replacement, or annual maintenance, trust our team to delight you with money-saving advice and high-quality workmanship. As of July 1st, 2024, Cooper sends only licensed and certified plumbers to handle our customer’s backflow testing needs. This is to comply with the passage of HB24-1344 of the Colorado Department of Public Health.

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"… excellent service from a very knowledgeable technician."

My system was not humidifying. I received excellent service from a very knowledgeable technician. He was quick, had a replacement valve on hand, and was happy to keep me informed of what was going on as he worked. I couldn't ask for more.

—Lawrence W. | Denver Homeowner

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For Reliable Backflow Device Repairs and Replacements, Call Cooper!

Hours of Operation

The Cooper Green Team is open 24 hours a day, 7 days a week.

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