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Backflow testing reviews from Northern Virginia homeowners

No review so far uses the word backflow, so this page shows what customers say about the plumbing team that does the testing.

Last updated October 5, 2026 · 177 reviews in all · page 2 of 6

What this job usually involves

Most people find us with a notice from their water utility in hand. A backflow test is a yearly check that the valve on your lawn sprinkler, fire sprinkler or pool line still stops water from flowing backward into the drinking water. Virginia's waterworks regulations call for a test when the device goes in, right after any repair, and every year after that, and the utility sends the notice to make sure it happens.

The tester hooks a calibrated gauge to the device's test cocks and shuts the water off for a few minutes. Each check valve, and the relief valve on an RPZ, has to hold its pass mark. Figure about thirty minutes a device. If it passes, the report goes where your utility wants it and you keep a copy. If it fails, you get the reason and a price first, then it's rebuilt or replaced, tested again and the passing result filed. Winter breaks more of these here than anything else, mostly above-ground PVBs that weren't drained. Backflow testing is done by our plumbing team. Nobody has mentioned a backflow test by name in a review yet, so the reviews here are that team's other jobs.

Backflow testing and repair on goswiftpro.com →

Nine SwiftPro plumbers in front of three wrapped SwiftPro vans in Northern Virginia, with a RIDGID drain cleaning machine, sewer camera and water jetter
The plumbing team and its drain gear

More reviews, page 2

5 out of 5 stars

My technician James gave an honest assessment of my situation, clearly laid out the scope of work, and provided different pricing options to resolve my concern. I will definitely call SwiftPro in the future for any plumbing needs!

Review Update:

James came out to install my new sump pump system today and knocked it out of the part again. Thank you James and thank you SwiftPro!

kyle K. · on or before July 23, 2026Google (Chantilly profile) ↗
4 out of 5 stars

He came out and assess my situation. He's coming back later with an additional guy and he gave me the number of a company that works with my insurance to solve the other issues I have. The only reason I don't give 5 stars is my pipes won't be fixed until later today. Otherwise I'd give 5 stars all the way.

James N. · on or before July 20, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Xavi F. arrived quickly, after 8pm ( nothing breaks during business hours, lol). He fixed the plumbing problem at hand and identified the cause of a different issue. He was respectful, wore booties to keep my home clean, and worked quickly. Will call SwiftPro again….hopefully not too soon though! The after-hours service call fee is understandable.

D. L. · on or before July 15, 2026Google (Chantilly profile) ↗
Alexandria5 out of 5 stars

James M. did a great job diagnosing and fixing the issues I was having with two of my toilets. He was friendly, professional, and worked quickly while making sure everything was repaired correctly. I really appreciated his knowledge and efficiency. I would definitely recommend James and SwiftPro to anyone looking for reliable plumbing service!

Michelle O. · on or before July 15, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Jim was very professional, knowledgeable and polite plumber. He installed a water heater for us. After the installation he educated us on the maintenance and the new set up. I strongly recommend Jim/SwiftPro. Plus SwiftPro price was very reasonable/20% below other estimates.

Anna E. · on or before July 15, 2026Google (Chantilly profile) ↗
Alexandria5 out of 5 stars

Zabi was terrific. On time, efficient and able to identify the issue quickly. And super pleasant.

Jeannette M. · on or before July 15, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Jimbo was straight to the point with me. He told me the steps he would need to take and their costs. He answered my questions and explained the reasoning behind things. He didn't beat around the bush.

Ryan F. · on or before July 15, 2026Google (Chantilly profile) ↗
5 out of 5 stars

SwiftPro HVAC came out to do a plumbing maintenance check. The check was included with my recent new HVAC installation. The technician (James Milligan) was very professional and quickly evaluated my faucets, toilets, water heater, washing machine lines, main water intake valve, all cut-off valves and visible pipes. Now I have an estimate for needed maintenance repairs.

JB J. · on or before July 15, 2026Google (Chantilly profile) ↗
Herndon5 out of 5 stars

SwiftPro delivered and installed a 75 gallon AO Smith water heater. Zabi was very professional in his communication, plumbing, testing, and cleanup. Good crew to move new heater to basement utility room and take out the old heater.

Giri V. · on or before July 8, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Outstanding meeting with Mr. James Milligan very informative and professional.

teddy P. · on or before July 8, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Fast service and very knowledgable. The technician helped me with both a garbage disposal and water softer issue. He was friendly and easy to talk to about future needs.

Jonathan B. · on or before June 23, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Timely, professional, and honest. Needed some analysis and estimate on bathroom plumbing.

Hassib A. · on or before June 23, 2026Google (Chantilly profile) ↗
McLean1 out of 5 stars

Zabi was fine- polite and pleasant.

Swiftpro, on the other hand, is ridiculously overpriced. I wish they’d been transparent about what they wanted to charge me to snake my shower drain - I could have saved Zabi the trip and myself the $49 service charge. I could buy three heavy duty professional snakes myself for the price they charge. My advice to potential customers: keep looking. …

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There are more reasonably priced services out there.

Heather C. · on or before June 5, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Zabi was friendly, timely, professional and did an excellent job on the plumbing work we had done. He was a pleasure

Natalie T. · on or before May 29, 2026Google (Chantilly profile) ↗
5 out of 5 stars

New tenants in the rental property had a problem with their drain. Property manager sent their plumber said they snakeed the drain and could not solve the clog. Wanted $800 to snake the drain through the roof vent.

Called Swift Pro and James Milligan solve the problem in 15 minutes saving me hundreds of dollars.

Evan O. · on or before May 29, 2026Google (Chantilly profile) ↗
5 out of 5 stars

I recently had my heat pump replaced by SwiftPro Heating, Cooling & Plumbing, and the entire experience was excellent from start to finish.

From the sales process to the installation, everything was smooth, professional, and well organized. The price, warranty, and reputation they offered provided greater value than the other quotes I received.

Moises and his installation team were outstanding — knowledgeable, respectful, and very professional throughout the entire job. …

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They took great care to cover and protect all work areas while installing the new system, and when the job was completed, everything was cleaned up perfectly.

The workmanship and attention to detail were impressive. I highly recommend SwiftPro Heating, Cooling & Plumbing to anyone looking for quality HVAC service and installation.

A. A. · on or before May 15, 2026Google (Chantilly profile) ↗
Herndon5 out of 5 stars

I have used the Irish Plumber services for years, and now they have become part of SwiftPro. I had plumbing work performed, and I am very pleased that their excellent service at a fair price is still how they do business. I will have them back soon for more work. They are still the only ones that I will call for plumbing, heating, and air conditioning work!

Michael B. · on or before May 14, 2026Google (Chantilly profile) ↗
Oakton5 out of 5 stars

Jumbo assessed what I needed for my new oven very quickly and will provide a report on what I need to fix with my plumbing.

Michelle F. · on or before May 14, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Great professional service . Technician arrived on time and was all business which was much appreciated. Thanks for an outstanding household plumbing assessment/review estimate job!!

Frank T. · on or before May 4, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Tyson from Swiftpro came out regarding our interest in an under sink water filtration installation. We were very impressed with his knowledge and information and feel confident in Swiftpro.

Carole F. · on or before April 28, 2026Google (Chantilly profile) ↗
5 out of 5 stars

The technicians that came to my home to put in a new HVAC system, were the most professional, yet friendly, warm, knowledgeable people I have ever come in contact with. I felt so good with their honesty and the cost of my new magic pak System. I highly recommend this company! I feel so relieved, knowing that I am now in good hands with my heating and air-conditioning and I’m sure there plumbing work is just as wonderful! …

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This company is above five stars… Thanks so much to swift pro.

Debbie M. · on or before April 27, 2026Google (Chantilly profile) ↗
Reston5 out of 5 stars

Plumbing system test and maintenance, including snaking the sewer line

As a follow up, Tyson came out to check the system and gave us some good preventive maintenance tips.

George B. · on or before April 24, 2026Google (Chantilly profile) ↗
Alexandria5 out of 5 stars

Great job. Very professional. Came promptly to the house to cover a pipe leak in progress.

Grant P. · on or before April 23, 2026Google (Chantilly profile) ↗
Springfield5 out of 5 stars

Zabi did a great job. Fill valve, flush valve and gaskets replaced on this 30-yr-old toilet. No leaks, no run-on.

Harold S. · on or before April 17, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Elvis was a rock star. When I explained that I was only wanting to have my A/C and HVAC unit repaired, not replaced, Elvis understood. He didn’t pressure me into replacing my HVAC and A/C unit like technicians from other companies have done in the past. Instead, he focused on repairing my A/C unit. He quickly identified the problem and initiated timely repairs at a reasonable price. …

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He was courteous and professional, and clearly explained all the work he did with before and after pictures showing how he fixed the problem. He made recommended maintanance suggestions, but never pressured me into buying anything more. I was grateful for his honest professionalism. I would recommend using SwiftPro. I will definitely be contacting them again for future HVAC and plumbing needs.

Chris M. · on or before April 13, 2026Google (Chantilly profile) ↗
5 out of 5 stars

Swift Pro just performed a vent cleaning at my 50 year old house that has never had a vent cleaning. Very satisfied with price and service, the technician Aaron was polite, professional, punctual and answered all of my questions without making me feel like a dummy. I was so pleased with the service that I signed up for the Swift Pro membership. …

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Highly recommend Swift Pro for all of you HVAC needs. I do not have any plumbing problems but they will definitely be my first call if one arises.

Karen W. · on or before March 27, 2026Google (Chantilly profile) ↗

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