Our Residential Backflow Prevention Installation, Testing & Repair Services in Aurora, CO
C4 Plumbing, offering the best plumbing services in Aurora, CO and the surrounding area.
who we are
Aurora's Plumbing Service Experts
Tired of impersonal big-box plumbers? Meet C4 Plumbing! We deliver fast, reliable repairs with fair upfront pricing and a personal touch the big companies can’t match. Free estimates and no extra weekend charges. From leaky faucets to water heater installs, every job is handled by an experienced pro who cares. On-time service, honest work – that’s our promise to you.
Honest Upfront Pricing - No surprises – free estimates and clear quotes before work begins.
On-Time Service - If we say I’ll be there between 8am-10am, we will be there (and you will get a call or text if we're running late!).
Emergency Help - Burst pipe? Call 24/7 – we are local and ready to help in the Denver Metro area, day or night.

Our Residential Backflow Prevention Installation, Testing & Repair Services - Why Choose Us
Certified Installation Services
We install backflow prevention devices to protect your water supply from contamination. All installations meet local safety codes and standards.
Annual Testing Services
We perform certified backflow testing to ensure systems are working properly. This helps maintain compliance and water safety.
Repair & Maintenance
We repair faulty backflow systems to restore proper protection. Our service ensures long-term reliability and safety.
Contact Us
Get In Touch With C4 Plumbing
Have a question or need an estimate? Fill out the form or call us directly. We're here to help.
Phone
Need to contact us right away? Call Us: (720) 585-1471
Testimonials
What Our Customers Say
"Fast and quality service, fairly priced. Responded to my non-emergency plumbing repair within 24 hours."
- Andy N.
"Mark Canty is the best! Friendly, competent, communicative, creative, highly skilled, prompt - a consummate professional in every way! And C4 operates with a great customer-facing system."
- Karl R.
"Had Them come out and install a water shut off valve behind our fridge, They were on time did the job quickly and were reasonably priced. I will use them again."
- Steve S.