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SwiftPro tests and repairs backflow preventers in Catlett, and the yearly test is $250 a home (normally $300). Call SwiftPro, rated 5.0 stars across 1,130 reviews, at (703) 997-9757, 24 hours a day, 7 days a week.
SwiftPro’s plumbers in Catlett are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. Backflow testing in Catlett for homes on FCWSA’s village water: we test the device, fix it if it fails and send FCWSA the report. Book it at (703) 997-9757 or online. We’re rated 5.0 stars across 1,130 reviews, and we set the visit around the date on your notice.
5.0 stars across 1,130 reviews
Our plumbing team in front of three of our vans.
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Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceWe answer day or night, and we will tell you honestly when we can get there.
Our own plumbers, our own trucksNobody here is a subcontractor with a magnet on the door
The price is settled before the workYou see the number in writing before anything is taken apart
What it costs
The yearly test is $250 a home, normally $300, and you can pay for it online. HOA and condo communities that book their units together pay $175 to $225 a unit. A new preventer, installed and tested, runs $800 to $1,200. Those are for a home’s device up to 1 inch; where an HOA unit or a new preventer lands in its range is set at the house and quoted before we start.
Yearly backflow test, one home
$250 (normally $300)
HOA or condo units booked together, per unit
$175 to $225
New backflow preventer, installed and tested
$800 to $1,200
Repair or rebuild after a failed test
Priced in writing before any work
Prices checked .
A device that fails is priced in writing before any work. Most can be rebuilt with new springs, seats or rubber parts; a body cracked by a freeze gets replaced. Either way it’s tested again afterward, which Virginia requires.
Booking for an HOA, townhouse or condo community? Here’s what each unit pays when the community books one visit. And what a backflow test costs covers what moves the price up or down.
What’s different in Catlett
Catlett’s public water is a small system: two drilled wells, about 264 and 270 feet deep, pumping into an elevated tank whose height makes the pressure. It serves the village. Most of the roughly 1,600 homes in the 20119 ZIP run on their own wells, and FCWSA doesn’t regulate private wells, so for most of Catlett no utility test is ever due.
FCWSA explains the risk plainly. When pressure in the main drops, from a break or heavy demand, water can be drawn backward out of whatever is hooked to the house. That’s back-siphonage. FCWSA guarantees at least 20 psi at every service connection, but it still names outside taps and garden hoses as the most common source of trouble at home, especially a hose lying in a pool or screwed onto a weed sprayer.
Around Catlett the list of things on the end of a hose runs longer than in a subdivision. FCWSA’s self-survey asks about animal watering troughs, yard hydrants, ponds with a pump, water storage tanks and hose-end sprayers for fertilizer. A trough topped off by a hose with its end under the water is exactly what a vacuum breaker on the spigot is there for. And a farm on FCWSA water that uses it for more than the house is on FCWSA’s list for a yearly on-site survey.
Every owner home in the Catlett ZIP is a detached house, and more than four in ten were built before 1980. On houses that age the outside spigots are often the plain kind with no vacuum breaker, which is easy to fix with a part that threads on. Village homes with lawn sprinklers get the yearly device test like anywhere on FCWSA water. Our backflow testing page covers how that visit goes.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIP 20119 as a whole: every Catlett address, the village included. The Census place for the village alone has too few homes for steady figures.
When it’s time
Running a hose into a trough or pond and walking away is how plenty of water gets topped off out here. If line pressure drops while the end is under water, that water can be pulled back toward the house. Keep the hose end above the waterline, or put a vacuum breaker on that spigot.
Anything piped to the water supply that could push water back into it gets a device: lawn sprinklers, a pool fill line, a hot tub. More yard usually means more of them.
A letter from the water utility with a date on it means there’s a testable device on your line, usually on the lawn sprinklers, and its test is due.
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Before the first hard freeze
A device that sits full of water all winter is the most common reason it fails the spring test. Around here, get this done by the end of October.
On most houses it’s outside by the foundation: a brass valve on two pipes standing out of the ground, with a cap on top. That’s a PVB. An RPZ or double check may sit in a basement or a box in the ground instead.
Turn off the valve that feeds the sprinklers, usually in the basement or utility room just past the main shutoff. Leave the rest of the house on.
Most systems here get blown out with compressed air so nothing sits in the lines or the device. If yours hasn’t been, that’s the step that matters.
Set the device’s two shutoff handles and its little test cocks about halfway, near 45 degrees, so no pocket of water stays trapped inside to freeze.
An insulated cover helps a PVB through the winter. On an RPZ, never block the relief valve opening underneath: it has to be able to dump water.
Some owners bring the device inside for the winter. Check the rules first: Loudoun Water wants a device that came off tested again when it goes back on, and Fairfax County wants it back on before your testing month.
Not sure it was drained, or saw water coming from the cap when the sprinklers ran? Call us. We’ll look at it, and if it cracked, you get the reason and a price before anything gets replaced.
Who sends the notice
The Fauquier County Water and Sanitation Authority says state code (12VAC5-590-580) requires it to make sure every backflow device on its system is installed, maintained and tested every year. It surveys residential customers too, with a residential water system questionnaire (Form CCCP-0003). Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing a tester
Questions to ask anybody who offers to test it, us included.
In Catlett the device on a sprinkler line is only part of it. Ask whether the tester will glance at the spigots, the hose setups and anything feeding a trough or pond while they’re there, and tell you what’s worth fixing.
Since January 1, 2023, Virginia only accepts tests from a DPOR-certified Backflow Prevention Device Worker, and some places keep a list of their own on top. Ask to see the certificate before the gauge goes on.
Some utilities take it from the tester and some want it from you. Ask which, and keep a copy either way, so you can show the date if a second notice turns up.
Ask for the reason and a written price before anything gets taken apart, and whether the retest is part of it. A failed device runs on a deadline, so a tester who can also fix it saves you a second trip.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,130 reviews. Read them on our reviews page.
Tyson was wonderful; professional, very knowledgeable, thorough and fast. He was great at telling me about what was needed, and I very much appreciated that. For the next plumbing problem we have, I will have SwiftPro on speed dial.
Where we work
Next door to Catlett: Nokesville, Bristow, Bealeton, Manassas and Gainesville.
Questions
Not for FCWSA. It doesn’t regulate private wells, so a home on its own well gets no utility test notice. A hose sitting in a trough, pond or sprayer can still pull water back into your own pipes, so a vacuum breaker on those spigots is worth having.
It’s water flowing backward when pressure in the main drops, from a main break or heavy demand, pulling in whatever a hose or pipe is sitting in. FCWSA names it as one of the two ways a cross-connection contaminates drinking water.
SwiftPro does, all over Catlett. We test the backflow preventer on your sprinkler system, fire line or pool in about 30 minutes, repair it on the same visit if it fails, and get the report where your water utility wants it. Call (703) 997-9757 or book online.
The yearly test is $250 a home, normally $300, and you can pay for it online. HOA and condo units booked together on one visit run $175 to $225 a unit. A new preventer, installed and tested, is $800 to $1,200. Where an HOA unit or a new preventer lands in its range is set at the house and quoted before we start, and a device that fails is quoted in writing before any repair. More in what a backflow test costs.
About 30 minutes a device. The water is off for a few of those minutes while the gauge readings are taken.
Ready when you are
Call, or send the form at the top. Have the notice handy: how many devices it lists and the date on it are what we need. Or pay $250 online and we’ll call to pick the day.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
SwiftPro Plumber & Water Heaters
4200 Lafayette Center Dr, Suite N, Chantilly, VA 20151
Virginia Class A contractor license #2705192276
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Catlett and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,130 reviews on Google, Angi, Yelp, the BBB and Facebook. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
From SwiftPro Heating, Cooling & Plumbing in Chantilly. Housing figures are the Census Bureau’s American Community Survey, 2020 to 2024, for each place named; permit, water and sewer facts link to each office’s own page and were checked in September and October 2026.