Backflow Preventer in Lawrence, MA
Keep your drinking water safe in Lawrence, MA with our reliable backflow preventer solutions.
- Upfront Pricing Always
- Guaranteed Workmanship
- Quick Annual Test Scheduling
- Certified Backflow Testers
Protect Your Water, Call Us Today in Lawrence, MA.
If your assembly fails, we can usually repair or rebuild it on the same visit and test it again.
Your Local Backflow Preventer Experts in Lawrence, MA
BWM Plumbing provides complete backflow preventer services for homes and businesses across Lawrence, MA. These devices are essential for preventing contaminated water from flowing back into your clean drinking water supply, a serious health hazard.
Our expertise includes:
- New installations for residential and commercial properties.
- Repair and replacement of all backflow preventer models.
- New backflow installation for irrigation, fire and commercial lines

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

Customers
Why Choose BWM Plumbing for Backflow Preventer in Lawrence, MA?
Protecting your water supply from contamination is not just about compliance, it is about public health. Backflow events can bring harmful substances into your drinking water.
- Property Value, A well-kept plumbing system, including backflow prevention, adds value and safety to your property.
- Paperwork Handled, We submit test reports with your water provider on your behalf.
- Same-Visit Repairs, Rebuild kits on our trucks let us fix most failures on the spot.
Citywide Coverage
BWM Plumbing proudly serves every neighborhood of Lawrence, offering prompt and reliable backflow preventer services. Whether you are in an older district or a newer subdivision, our plumbers are always ready to respond to your needs.
Experienced Team
Our team of licensed plumbers brings deep experience to every backflow preventer job in Lawrence. They are regularly trained on the latest backflow prevention technologies and code updates, delivering reliable service every time.
Safety-First Approach
Installations follow the plumbing code and the cross-connection program of your water provider. We pull permits when required and test every new assembly before it goes into use.
Trusted Certified Lawrence Plumbing Services Professionals
At BWM Plumbing, we take pride in providing certified plumbing services throughout Lawrence, MA. 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 CertificationReliable Backflow Preventer Services in Lawrence, MA
Backflow Preventer Installation in Lawrence
Whether you are installing an irrigation system, a fire suppression line, or require a new backflow preventer for your domestic water supply, BWM Plumbing provides expert installation services. We assess your property's needs and local Lawrence plumbing codes to recommend the most appropriate device type and size. Proper installation is key to lasting protection against contamination.

Backflow Preventer Repair and Rebuild in Lawrence, MA
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.
Backflow Repair vs. Replacement Cost in Lawrence, MA
Repairing a failed assembly with a rebuild kit is often the most affordable choice. Replacement makes sense when the body is cracked, parts are discontinued or the device is the wrong type for the hazard. We compare repair and replacement costs on the spot. You choose the option that fits your budget and compliance needs.
Irrigation Backflow Preventer Installation in Lawrence
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 proper height. Insulated covers or enclosures help protect it from weather damage and theft.
Commercial Backflow Services in Lawrence, MA
Businesses in Lawrence often have more complex backflow prevention requirements due to higher water usage and diverse plumbing systems. BWM 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.
Watts Backflow Preventer Service in Lawrence, MA
Watts is a leading manufacturer of backflow prevention devices, known for reliability and a wide range of products. BWM Plumbing specializes in servicing Watts backflow preventers, including the popular 009 series and 909 series reduced pressure zone assemblies. Our technicians are experienced in diagnosing and repairing Watts components so your device performs as designed. We also stock genuine Watts parts for quick and effective repairs, keeping your system in top condition.
New Backflow Preventer Installation in Lawrence
Whether you are installing a new irrigation system, fire suppression system, or need to replace an outdated device, BWM 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 Lawrence standards.

Reduced Pressure Zone Assembly Service in Lawrence, MA
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.
Backflow Preventer Near Me in Lawrence, MA
When you search for 'backflow preventer near me' in Lawrence, MA, BWM Plumbing is your local, go-to choice. We are deeply familiar with Lawrence's plumbing infrastructure and the challenges local water systems face. Our proximity means faster response times and technicians who understand local codes and conditions.
Our certified testers work locally and can often schedule tests within a few days of your notice. That gives you time to make repairs before the deadline. We also send reminders when next year's test is coming up.
BWM Plumbing at a Glance
- Licensed and insured plumbers serving Lawrence, MA
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.9-star rated by 434+ Massachusetts customers
Lawrence Map
Lawrence Information
- Population
- 88,172
- Area codes
- 978/351/508
- Service area
- Lawrence and communities within 40 miles
- Nearby
- Methuen Town, Haverhill, Lowell, Peabody
With a mix of older and newer construction and varying water pressure, a working backflow preventer is vital for protecting your home's drinking water in Lawrence, MA from potential contamination.
Expert Services
Trust our professionals for reliable BWM Plumbing solutions in Lawrence, MA.
Our Specialized Plumbing Services in Lawrence, MA
At BWM Plumbing, we provide a complete range of plumbing services across Lawrence, MA. 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 Service Works in Lawrence, MA
Here is how we handle testing, repairs and reporting from start to finish.
Request a Quote
Call (857) 335-4894 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 written up 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 Lawrence
Annual residential backflow testing typically costs $75 to $150 per assembly. Repairs with a rebuild kit usually run $150 to $450. New residential installation ranges from $300 to $1,200, and commercial RPZ assemblies often cost $1,500 to $5,000 installed.
BWM Plumbing services all major types of backflow preventers, including Reduced Pressure Zone Assemblies, Double Check Valve Assemblies, Pressure Vacuum Breakers, and Atmospheric Vacuum Breakers. We work with popular brands like Watts, Wilkins, Febco, and Conbraco.
BWM Plumbing stands behind our work with a full warranty on all backflow preventer repairs and installations. We use quality parts and hold our workmanship to the highest standards. Warranty details will be provided with your service agreement.
Most municipalities, including Lawrence, require backflow preventers to be tested annually. This regular testing makes sure the device is working correctly and continues to protect your potable water supply from contamination, as required by local water authorities.
An RPZ, or Reduced Pressure Zone assembly, offers the highest level of protection, suitable for high-hazard cross-connections. A DCVA, or Double Check Valve Assembly, provides moderate protection and is typically used for low to medium hazard situations, like irrigation systems. The choice depends on the application and local code rules.
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.
Constant dripping from the relief valve, low water pressure and visible cracks are common signs. Discolored water or a failed test notice also indicate a problem. Prompt repair keeps you in compliance.
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.
What People Are Saying About Our Plumbing Experts?

Patricia H.
We had a slab leak that two other companies could not find. BWM Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Lynn, MA
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 · Medford, MA
James P.
Our commercial plumbing system had a leak under the sink, and BWM Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Lawrence, MA
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 · Medford, MA
Mark T.
When our office needed drain cleaning, BWM Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Peabody, MA
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 · Lawrence, MA













