Serving Denver Since 1948
Denver's Trusted Plumbing & Backflow Specialists
Residential and commercial plumbing solutions you can count on. Certified backflow device testing, repair, fire hydrant set-up, and a complete parts inventory — all from one trusted team.
75+
Years in Business
Certified
Backflow Testing
Master
Licensed Plumbers
All Brands
Serviced & Repaired
What We Do
Our Services
Denver's trusted plumbing and backflow specialists since 1948. We handle everything from certified backflow testing to complete fire hydrant installations.
Certified Testing & Repair
Testing and certification of all backflow device brands and sizes to comply with annual water department regulations. Full repair services for Febco, Watts, and Wilkers/Zurn devices.
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Fire Hydrant Set-Up
Complete backflow prevention device unit construction including water meter when necessary. New and durable fire hydrant tools, wrenches, and accessories.
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Complete Parts Inventory
Large assortment of valves, adaptors, fittings, and backflow devices at competitive prices. Full range of devices for domestic, irrigation, boiler, and fire protection needs.
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Denver's Plumbing & Backflow Experts Since 1948
A-1 Plumbing and Backflow in Denver, Colorado are local and professional plumbing and backflow specialists trained to handle a variety of residential and commercial plumbing issues. Since 1948, we have been offering a full range of plumbing installations, repair and maintenance services.
We also maintain a large and diverse stock of plumbing supplies. No matter the plumbing concerns you have, rely on us for fast and dependable solutions. We are located 5 minutes from the Denver Water Meter Shop.
Why Choose Us?
- Certified Testing and Repairs
- Full Backflow Services Available
- Full Plumbing Services Available
- Installed and Portable Devices Available
- Professional Sales and Installation
Companies We Work With Include:
Need Backflow Testing or Plumbing Services?
Get in touch with our Master Plumbers to help you with your plumbing and backflow needs. As the leading backflow specialist in the Denver area, you are sure to get the best services from A-1 Plumbing and Backflow.
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Contact A-1 Plumbing and Backflow
Get expert plumbing repair and replacement services today. Our representatives will get back to you as soon as possible.
1509 Osceola St, Denver, CO 80204
5 minutes from the Denver Water Meter Shop
Hours of Operation
Monday - Friday: 8:00 AM - 5:00 PM
Saturday - Sunday: Closed