Backflow Preventer in Longmont, CO
Annual test notice from your water provider? We test, repair and install backflow preventers in Longmont, CO and submit the paperwork.
- Upfront Pricing
- RPZ, PVB and DCVA Experts
- Upfront Pricing Always
- Colorado-Specific Expertise
Pass Your Backflow Test and Stay Compliant in Longmont, CO.
Contact GFR Plumbing today for reliable backflow preventer solutions.
Expert Backflow Preventer Services in Longmont, CO
At GFR Plumbing, we understand the importance of a working backflow preventer in Longmont, CO. Our plumbers are trained to handle all types of backflow devices, from testing and routine maintenance to complex repairs and new installations, protecting your family's health.
Our expertise includes:
- Annual certified testing of RPZ, DCVA and PVB assemblies
- Certified backflow device testing and inspection.
- Licensed backflow preventer testing and certification.

Additional Plumbing Maintenance Services in Longmont, CO
Our maintenance and specialty plumbing services in Longmont, CO protect your home year-round and extend the life of every system.

Customers
Why Choose GFR Plumbing for Backflow Preventer in Longmont, CO?
Water providers usually require backflow assemblies to be tested on a set schedule, and missed deadlines can lead to fines or water shutoff. We make compliance simple by scheduling, testing and submitting reports for you.
- Certified Testers, Our testers hold current backflow certification and use calibrated, accurate gauges.
- Paperwork Handled, We file test reports with your water provider on your behalf.
- Certified Plumbers, Our technicians are specifically certified and trained in backflow prevention device testing and repair.
Citywide Coverage
No matter where you are located within Longmont, CO, GFR Plumbing has your backflow prevention needs covered. We understand the varied plumbing systems across the area and provide tailored solutions to each homeowner.
Experienced Team
The GFR Plumbing team is made up of highly skilled and certified professionals with years of experience in backflow prevention. We pride ourselves on accurate diagnostics and effective solutions for all Longmont residents.
Safety-First Approach
We prioritize the safety of your water supply and your property during every backflow preventer service. Our technicians follow strict safety protocols and make sure all work complies with Colorado plumbing codes for your peace of mind in Longmont, CO.
Trusted Certified Longmont Plumbing Services Professionals
At GFR Plumbing, we take pride in providing licensed, certified plumbing services throughout Longmont, CO. Backed by leading industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationDependable Backflow Preventer Services in Longmont, CO
Reduced Pressure Zone Assembly Service in Longmont, CO
RPZ assemblies protect against high-hazard cross-connections at restaurants, medical offices, car washes and buildings with chemical feed systems. They have two check valves and a relief port that discharges water if a check fails. We install, test and rebuild RPZ units from Watts, Febco, Wilkins and Apollo. Proper drainage is planned for the relief port discharge.

Freeze and Heat Protection for Backflow Preventers in Longmont, CO
Above-ground backflow assemblies are exposed to summer sun and winter cold. Hard freezes are a normal part of winter in Colorado, and pipes in exterior walls, crawlspaces, and garages are especially vulnerable. Freezing can crack bodies and bonnets, while UV exposure breaks down plastic parts. We install insulated pouches, heated enclosures or lockable cages as needed. Protecting the assembly helps it pass testing and last for years.
Commercial Backflow Services in Longmont, CO
Businesses in Longmont often have more complex backflow prevention requirements due to higher water usage and diverse plumbing systems. GFR Plumbing provides full-service commercial backflow services, including large-scale testing, repair, and installation for multi-unit properties, industrial facilities, and restaurants. We understand the demands of commercial operations and work quickly to minimize disruption, keeping your business compliant and your water supply safe.
New Backflow Preventer Installation in Longmont
Whether you are installing a new irrigation system, fire suppression system, or need to replace an outdated device, GFR Plumbing handles professional backflow preventer installations. We assess your property's needs and local plumbing codes to recommend the correct type and size of backflow preventer. Proper installation is critical for effective operation, and our certified plumbers make sure your new device is correctly fitted, tested, and compliant with all Longmont standards.
Backflow Preventer Repair and Rebuild in Longmont, CO
Common failures include worn check valve rubbers, debris stuck under seats and relief valves that drip constantly. We isolate the assembly, disassemble it and replace the worn parts with the manufacturer rebuild kit. Then we retest to confirm it passes. Rebuilding usually costs far less than replacing the entire assembly.
Commercial Backflow Compliance in Longmont
Commercial properties may have several assemblies on domestic water, irrigation, fire lines and equipment. We track test dates, schedule them together and submit all reports. Property managers receive a summary of every device and its status. This keeps you ahead of notices and avoids unexpected shutoffs.
Febco Backflow Preventer Experts in Longmont
Febco backflow preventers are commonly found in commercial and irrigation applications. GFR Plumbing provides expert service for all Febco models, including the 825Y and 860 series. We understand the details of Febco designs and can efficiently troubleshoot, repair, or replace components like check valves, relief valves, and air inlets. Trust us to maintain your Febco device to factory specifications so it keeps protecting against backflow events.

Backflow Preventer Cost & Value in Longmont, CO
The cost of backflow preventer services in Longmont, CO varies depending on the type of service, such as testing, repair, or installation, and the device involved. While there is an initial investment, a working backflow preventer provides important protection for your health and avoids potential fines or costly contamination cleanup. We offer transparent pricing and detailed estimates before any work begins.
Backflow Preventer Near Me in Longmont, CO
When searching for 'backflow preventer near me' in Longmont, CO, you want a local company that understands Colorado plumbing requirements. GFR Plumbing is your trusted local provider, offering fast response times and expert service right in your community. We are familiar with the common issues faced by homes in our area.
When you search for 'backflow preventer near me' in Longmont, CO, GFR Plumbing is your local, trusted choice. We are deeply familiar with Longmont's plumbing infrastructure and the challenges local water systems face. Our proximity means faster response times and technicians who understand local codes and conditions.
GFR Plumbing at a Glance
- Fully licensed plumbing team covering Longmont, CO
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 750+ Colorado customers
Longmont Map
Longmont Information
- Population
- 98,630
- Area codes
- 303/720/970
- Service area
- Longmont and communities within 40 miles
- Nearby
- Lafayette, Boulder, Broomfield, Loveland
With seasonal irrigation and weather exposure on above-ground assemblies in Longmont, CO, regular backflow preventer testing and maintenance keeps drinking water safe and properties up to code.
Expert Services
Trust our professionals for reliable GFR Plumbing solutions in Longmont, CO.
Our Specialized Plumbing Services in Longmont, CO
At GFR Plumbing, we provide a complete range of plumbing services across Longmont, CO. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Backflow Preventer Process Works in Longmont, CO
At GFR Plumbing, we make backflow preventer service straightforward and efficient. Here is what you can expect when you choose us.
Request a Quote
Call (720) 727-9398 with your test notice or a description of your assembly. We confirm pricing and schedule a certified tester.
Test the Assembly
We connect calibrated gauges and test every check and relief valve. Results are recorded on your provider's form.
Repair and File
If the assembly fails, we rebuild or replace it and retest. Then we file the passing report with your water provider.
Frequently Asked Questions About Backflow Preventer in Longmont
Backflow preventer testing in Longmont, CO typically costs between $75 and $150. This fee covers the technician's visit, the test itself, and the submission of required reports to your local water authority. Complex commercial systems or multiple devices may incur higher costs.
Backflow preventers stop contaminated water from flowing backward into the public supply during pressure drops. Irrigation, fire lines and commercial equipment are common sources of contamination. Water providers require them to protect public health.
Most water providers require testing at least once per year. Some require testing after installation, repair or relocation as well. Your provider's notice will list the due date.
New installations and replacements often require a plumbing permit and an initial test. Requirements vary by city and water provider. We obtain permits and handle the initial test.
Signs of a failing backflow preventer include discolored water, unusual tastes or odors in your water, water leaking from the relief valve, or a sudden drop in water pressure. If you notice any of these issues, it is important to have your device inspected promptly.
We service Watts, Febco, Zurn Wilkins, Apollo and other common brands. Our trucks carry rebuild kits for common models. Less common parts can usually be ordered quickly.
A standard test usually takes 20 to 45 minutes per assembly. Water is briefly shut off during testing. Repairs may add an hour or more.
No. Testing must be performed by a certified backflow tester using calibrated equipment. Water providers only accept reports from licensed testers.
What People Are Saying About Our Plumbing Experts?

Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Longmont, CO
Patricia H.
We had a slab leak that two other companies could not find. GFR Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Boulder, CO
James P.
Our commercial plumbing system had a leak under the sink, and GFR Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Boulder, CO
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Broomfield, CO
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Longmont, CO
Mark T.
When our office needed drain cleaning, GFR Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Longmont, CO













