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Certified Backflow Testing in
Ashburn, VA

SwiftPro provides backflow testing, repair, and annual certification in Ashburn, VA, keeping irrigation systems, commercial properties, and fire lines compliant while protecting the drinking water supply.

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★★★★★5.0 GOOGLE
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★★★★★“Fixed my AC unit, no upsell, and scheduled a follow-up to make sure it’s still operating at efficiency. 100% recommend.”, Diane Q.
★★★★★“James Milligan solved the clog in 15 minutes, saving me hundreds of dollars.”, Evan O.
★★★★★“Water heater died Friday at 7:30pm, quotes by 10pm, new one installed Saturday morning. Fair pricing every time.”, Cathy K.
★★★★★“Prompt response when our AC went out on a 93° day. Explained the issues, didn’t upsell me. Highly recommend.”, Kevin K.
★★★★★“A top-notch experience in every regard. Moises is thorough and pays attention to the smallest detail. On time, on target, and honest.”, Bill D.
★★★★★“Heat pump replaced: knowledgeable, respectful, professional, and cleaned up perfectly. Greater value than the other quotes.”, A. A.
★★★★★“Aaron Kwon explained the process and gave feedback on what he found. Very professional and friendly.”, Beth C.
★★★★★“Zabi was friendly, timely, professional and did excellent plumbing work. A pleasure.”, Natalie T.
★★★★★“Elvis Diaz was efficient and thorough, a professional and a very nice fellow. A very happy customer.”, Ellen D.
★★★★★“Great job diagnosing and explaining the problem and way forward. These guys are the real deal.”, Clay P.
★★★★★“Great job diagnosing and explaining the problem and way forward. These guys are the real deal.”, Clay P.
★★★★★“Elvis Diaz was efficient and thorough, a professional and a very nice fellow. A very happy customer.”, Ellen D.
★★★★★“Zabi was friendly, timely, professional and did excellent plumbing work. A pleasure.”, Natalie T.
★★★★★“Aaron Kwon explained the process and gave feedback on what he found. Very professional and friendly.”, Beth C.
★★★★★“Heat pump replaced: knowledgeable, respectful, professional, and cleaned up perfectly. Greater value than the other quotes.”, A. A.
★★★★★“A top-notch experience in every regard. Moises is thorough and pays attention to the smallest detail. On time, on target, and honest.”, Bill D.
★★★★★“Prompt response when our AC went out on a 93° day. Explained the issues, didn’t upsell me. Highly recommend.”, Kevin K.
★★★★★“Water heater died Friday at 7:30pm, quotes by 10pm, new one installed Saturday morning. Fair pricing every time.”, Cathy K.
★★★★★“James Milligan solved the clog in 15 minutes, saving me hundreds of dollars.”, Evan O.
★★★★★“Fixed my AC unit, no upsell, and scheduled a follow-up to make sure it’s still operating at efficiency. 100% recommend.”, Diane Q.
SwiftPro van with ladder, providing HVAC, plumbing, and cooling services in Northern Virginia.
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Local Experts, Advanced Solutions

Your Trusted Partner for
Plumbing & Backflow

Backflow testing is one of those requirements that goes unnoticed until a notice arrives in the mail. At SwiftPro, we handle the test, any repairs the assembly needs, and the paperwork, so Ashburn property owners can stop tracking it themselves.

We invest in the latest technology and our testers are certified to work on backflow assemblies, which means we can test, rebuild, and recertify in a single visit rather than sending someone back. SwiftPro runs a dedicated plumbing team and a dedicated HVAC team, so the person testing your assembly does this every week. As a family-owned company serving Northern Virginia, we treat every property like our own.

Family Owned & Operated

Local and proud to serve our community, not a faceless corporation.

24/7 Emergency Service

Call any hour. We'll tell you honestly when we can get there.

Licensed & Insured

Fully licensed experts with the experience to get the job done right.

Need Help Now?

703-997-9757

We're ready when you need us.

SwiftPro family and technicians standing with company vehicles, providing church HVAC services in Northern Virginia.

Tyler Griffin

Founder, SwiftPro

Our Story

Built by a Neighbor,
for Neighbors

SwiftPro was founded by Tyler Griffin on a simple belief: people matter most. We treat customers like neighbors, value our team, and put quality before profit, bringing speed with service and family values to every job.

Meet the SwiftPro Story

The SwiftPro Difference

Certified Backflow Testing and Repair Services in Ashburn, VA

Certified Testers, and We File the Report

Certified testers, and we file the report for you. Virginia only accepts a test from a certified tester, so ask anyone for their number before they touch your assembly. Ours is #2717060089.

Testing and Repair in the Same Visit

Most failures come down to worn internal parts, and we carry common repair parts on the truck.

Irrigation and Commercial Both Covered

Lawn irrigation systems, commercial kitchens, medical and dental offices, boiler make-up lines, and fire suppression systems all carry backflow requirements. SwiftPro tests and services assemblies across residential and commercial properties throughout Ashburn.

SwiftPro plumber sweating a copper joint inside an open wall on a Northern Virginia plumbing repair

Why It Matters

Why Annual Backflow Testing in Ashburn, VA Is Worth Getting Right

Backflow Puts Contaminants Into Drinking Water

A pressure drop in the main, from a hydrant being opened or a water main break, can siphon water backward through a cross-connection. Without a working preventer, that can pull irrigation runoff, boiler chemicals, or process water into the potable supply serving the building.

A Preventer Is a Mechanical Device That Wears

Check valve springs weaken, rubber seats harden, and debris lodges in the body over time. An assembly that passed last year can fail this year while looking completely normal from outside, which is precisely why the test is annual rather than one-time.

Winter Freezing Destroys Assemblies

Irrigation backflow preventers sit above ground and crack readily if they are not drained before the first hard freeze. Owners often discover the damage at spring startup, when the assembly fails its test and needs replacing. Our plumber in Ashburn, VA can handle winterization alongside the annual test.

Copper water supply work and a thermal expansion tank on a SwiftPro plumbing installation in Ashburn, VA

Got Questions? We've Got Answers!

Frequently Asked Questions

How often does a backflow preventer need to be tested in Ashburn, VA?

Annual testing is the standard requirement for backflow assemblies, and the water authority typically sends a notice when yours is due. Because the internal components wear and can fail without any outward sign, the test has to be repeated each year rather than done once at installation.

What is a backflow preventer and why do I have one?

It is a valve assembly that allows water to flow into your property but blocks it from flowing back into the public supply. Properties with irrigation systems, boilers, commercial equipment, or fire suppression lines have one because those connections create a risk of contaminated water being drawn backward into the main.

What happens if my backflow test fails?

The assembly needs repair or replacement and then a passing retest. Most failures come down to worn internal parts and can be rebuilt on site. We carry common rebuild kits, so in most cases we correct the fault and retest during the same visit rather than leaving you to schedule again.

Service Area

Proudly Serving Ashburn, VA

SwiftPro proudly serves Ashburn, VA with certified backflow testing, repair, and annual recertification for homes, irrigation systems, commercial kitchens, medical offices, and fire suppression lines. Our certified testers perform the test, rebuild failing assemblies on site where possible, and submit the required documentation. As your trusted backflow and plumbing contractor in Ashburn, VA, SwiftPro keeps your property compliant and the water supply protected.

Serving Ashburn & Loudoun County
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5.01,132 reviews