Backflow Preventer in Great Falls, MT
Keep irrigation, fire lines and commercial equipment compliant in Great Falls, MT with professional backflow preventer service.
- Fast, Certified Technicians
- Montana-Specific Expertise
- Fast, Certified Technicians
- Code Approved Work
Need Backflow Preventer Service in Great Falls, MT?
Our licensed plumbers are ready to help you keep a safe water supply.
Your Local Backflow Preventer Specialists in Great Falls, MT
At DFV Plumbing, we understand the importance of a working backflow preventer in Great Falls, MT. Our plumbers are trained to handle all types of backflow devices, from testing and routine maintenance to complex repairs and new installations, safeguarding your family's health.
Our expertise includes:
- Licensed backflow preventer testing and certification.
- Installation for irrigation, fire suppression, and domestic lines.
- Repair and replacement of all backflow preventer models.

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

Customers
Why Choose DFV Plumbing for Backflow Preventer in Great Falls, MT?
In Great Falls, maintaining your backflow preventer is not just good practice, it's often a code requirement to protect public health. Montana uses a statewide plumbing code based on the Uniform Plumbing Code, and plumbers are licensed by the state. Our team makes sure your system meets all local regulations and operates effectively.
- Water Quality, Our services directly protect your family from contaminated water sources, a vital concern for health and peace of mind.
- Health Safety, Prevent sewage, chemicals, and other pollutants from entering your potable water supply.
- Same-Visit Repairs, Rebuild kits on our trucks let us fix most failures on the spot.
Citywide Coverage
We test and repair backflow preventers in every neighborhood of Great Falls, from residential irrigation systems to large commercial properties. Our technicians are familiar with local water provider reporting rules.
Experienced Team
Our team of licensed plumbers brings extensive experience to every backflow preventer job in Great Falls. They are regularly trained on the latest backflow prevention technologies and code updates, delivering expert service every time.
Safety-First Approach
Safety is our top priority, especially when it comes to your drinking water. All our backflow preventer services adhere strictly to local Great Falls codes and state regulations, so your system is not only effective but also fully compliant.
Trusted Certified Great Falls Plumbing Services Professionals
At DFV Plumbing, we take pride in providing licensed, certified plumbing services throughout Great Falls, MT. Backed by recognized 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 CertificationReliable Backflow Preventer Services in Great Falls, MT
Annual Backflow Testing in Great Falls
Most water providers require backflow assemblies to be tested at least once a year. Our certified testers connect a calibrated differential pressure gauge and check each check valve and relief valve. Test results are recorded on the provider's form and submitted for you. If the assembly passes, you are all set until next year.

Reduced Pressure Zone Assembly Service in Great Falls, MT
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 designed for the relief port discharge.
Backflow Preventer Installation in Great Falls
Whether you are installing an irrigation system, a fire suppression line, or require a new backflow preventer for your domestic water supply, DFV Plumbing provides professional installation services. We assess your property's needs and local Great Falls plumbing codes to recommend the right device type and size. Proper installation is key to long-term protection against contamination.
New Backflow Preventer Installation in Great Falls
Whether you are installing a new irrigation system, fire suppression system, or need to replace an outdated device, DFV 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 Great Falls standards.
Freeze and Heat Protection for Backflow Preventers in Great Falls, MT
Above-ground backflow assemblies are exposed to summer sun and winter cold. Winterizing unused buildings, draining outdoor faucets and keeping heat on prevent the most common freeze damage. 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 longer.
Backflow Preventer Repair in Great Falls, MT
If your backflow preventer fails its annual test or shows signs of malfunction, DFV Plumbing offers professional repair services. Common issues include worn-out check valves, faulty relief valves, or damaged springs. Our team carries a wide range of replacement parts for leading brands like Watts, Wilkins, Febco, and Conbraco. We diagnose the exact problem and perform precise repairs to restore your device's full protective function, preventing potential water contamination in Great Falls.
Irrigation Backflow Preventer Installation in Great Falls
Sprinkler and drip systems are one of the most common sources of cross-connection risk because they sit in soil with fertilizers and pesticides. Many systems use a pressure vacuum breaker or a reduced pressure assembly installed above grade. We size and install the correct device and set it at the required height. Insulated covers or enclosures help protect it from weather damage and theft.

Fire Line Backflow Testing in Great Falls
Fire sprinkler systems typically use double check or double check detector assemblies to keep stagnant water out of the public supply. These assemblies need regular testing, often coordinated with fire system inspections. We test and repair fire line assemblies and document the results. We can line up scheduling with your fire protection contractor.
Backflow Preventer Near Me in Great Falls, MT
We know the reporting process used by water providers around Great Falls. Our team submits results in the format they expect. That cuts down on paperwork headaches and follow-up calls.
When searching for 'backflow preventer near me' in Great Falls, MT, you want a local company that understands Montana plumbing requirements. DFV Plumbing is your trusted local provider, offering fast response times and expert service right in your community. We are familiar with the typical issues faced by homes in our area.
DFV Plumbing at a Glance
- Licensed and insured plumbers serving Great Falls, MT
- 24/7 emergency service with same-day scheduling
- Clear written estimates, no hidden fees
- 4.9-star rated by 917+ Montana customers
Great Falls Map
Great Falls Information
- Population
- 60,422
- Area codes
- 406/435/458
- Service area
- Great Falls and communities within 40 miles
- Nearby
- Helena Valley Southeast, Helena Valley West Central, Helena, Lewistown
With seasonal irrigation and weather exposure on above-ground assemblies in Great Falls, MT, regular backflow preventer testing and maintenance keeps drinking water safe and properties up to code.
Expert Services
Trust our professionals for reliable DFV Plumbing solutions in Great Falls, MT.
Our Specialized Plumbing Services in Great Falls, MT
At DFV Plumbing, we provide a complete range of plumbing services across Great Falls, MT. 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 Great Falls, MT
We take a careful, efficient approach to protect your water supply in Great Falls, MT.
Request a Quote
Call (406) 512-8883 or fill out our online form to schedule your backflow preventer service. Our friendly team will gather initial details and set up an appointment.
On-Site Assessment
A certified technician arrives at your Great Falls property to assess your backflow preventer. They will perform required tests or evaluate the existing system for repair or replacement.
Professional Service
We perform the required service, whether it is a precise repair, certified testing, or a new installation. All work follows Montana plumbing codes and manufacturer specifications.
Frequently Asked Questions About Backflow Preventer in Great Falls
Backflow preventer testing in Great Falls, MT 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 carry higher costs.
We service Watts, Febco, Zurn Wilkins, Apollo and other common brands. Our trucks carry rebuild kits for popular models. Less common parts can usually be ordered quickly.
A well-maintained backflow preventer can last 10 to 20 years or more. However, factors like water quality, exposure to weather, and the type of device can affect its lifespan. Winterizing unused buildings, draining outdoor faucets and keeping heat on avoid the most common freeze damage. Regular testing and maintenance help lengthen its service life.
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.
The lifespan of a backflow preventer typically ranges from 10 to 20 years, depending on the type, manufacturer, water quality, and maintenance. Regular testing and timely repairs can extend its life. However, certain components like rubber seals may need replacement sooner due to wear and tear.
Water providers may send follow-up notices, charge fees or eventually suspend service. Scheduling early avoids these problems. We can often fit urgent tests in on short notice.
If your backflow preventer fails its annual test, you will typically receive a notice from the Great Falls water department requiring prompt repair or replacement. Our technicians can diagnose the failure, perform the necessary repairs, and retest the device so it passes inspection and avoids any service interruptions or penalties.
New installations and replacements often require a plumbing permit and an initial test. Requirements vary by city and water provider. We pull permits and handle the initial test.
What People Are Saying About Our Plumbing Experts?

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 · Lewistown, MT
Patricia H.
We had a slab leak that two other companies could not find. DFV Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Havre, MT
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · Belgrade, MT
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 · Helena Valley Southeast, MT
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 · Great Falls, MT
Mark T.
When our office needed drain cleaning, DFV Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Havre, MT













