Best Plumbers in Loudoun County

By SwiftPro Heating, Cooling & Plumbing · Read October 5, 2026

#1 of 12: SwiftPro Heating, Cooling & Plumbing, with an office right here at 44679 Endicott Dr, Suite 211, Ashburn. Every plumber below is ranked on 8 things you can look up yourself, Google and Yelp included.

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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

#1of 12

SwiftPro Heating, Cooling & Plumbing

Google 5.0 from 884 reviews · Yelp 4.4 from 55 · 0.45% are 1 or 2 stars · 8 of 8 checks · Virginia Class A license 2705192276 · maintenance plan $199 a year

✓ HVAC + plumbing license
✓ Google 4.9+
✓ Yelp 4.0+
✓ Under 1% bad reviews
✓ Posts prices
✓ Posts plan price
✓ Whole-house plan
✓ Locally owned

Profile · Every review, counted · Who owns the others

The ranking

The 12 plumbers with an office in Loudoun County, from the 71 heating, cooling and plumbing companies Northern Virginia reviews most on Google, each licensed in Virginia for plumbing. One point each: licensed in Virginia for both HVAC and plumbing · rated 4.9 or higher on Google · rated 4.0 or higher on Yelp, across at least 10 Yelp reviews · fewer than 1 in 100 of its Google reviews are 1 or 2 stars · posts prices for common jobs · posts its maintenance plan price · that plan covers heating, cooling and plumbing · locally owned. Ties go to the higher Google rating, then more Google reviews. The Yelp 4.0+, Under 1% bad reviews and Whole-house plan checks were added October 19, 2026, read the same way for every company.

1SwiftPro Heating, Cooling & PlumbingChantilly · Google 5.0 from 884 · Yelp 4.4 from 55✓ HVAC + plumbing license✓ Google 4.9+✓ Yelp 4.0+✓ Under 1% bad reviews✓ Posts prices✓ Posts plan price✓ Whole-house plan✓ Locally owned8/8
2Cardinal Plumbing, Heating & AirSterling · Google 4.9 from 5,220 · Yelp 4.2 from 299✓ HVAC + plumbing license✓ Google 4.9+✓ Yelp 4.0+✗ Under 1% bad reviews✓ Posts prices✓ Posts plan price✓ Whole-house plan✓ Locally owned7/8
3AllTech ServicesSterling · Google 4.9 from 3,372 · Yelp 3.9 from 156✓ HVAC + plumbing license✓ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✓ Posts prices✓ Posts plan price✓ Whole-house plan✓ Locally owned6/8
4Falcon Heating, Air Conditioning and PlumbingSterling · Google 4.9 from 1,976 · Yelp 3.1 from 69✓ HVAC + plumbing license✓ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✓ Posts prices✗ Posts plan price✗ Whole-house plan✓ Locally owned4/8
5Mannix Heating & CoolingChantilly · Google 4.9 from 967 · Yelp 4.0 from 65✓ HVAC + plumbing license✓ Google 4.9+✓ Yelp 4.0+✗ Under 1% bad reviews✗ Posts prices✗ Posts plan price✗ Whole-house plan✓ Locally owned4/8
6M.E. FlowLeesburg · Google 4.8 from 6,218 · Yelp 2.5 from 303✓ HVAC + plumbing license✗ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✓ Posts prices✓ Posts plan price✓ Whole-house plan✗ Locally owned4/8
7Bowman's Plumbing, Heating, Air Conditioning & ElectricalSterling · Google 4.9 from 605 · Yelp 3.4 from 55✓ HVAC + plumbing license✓ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✗ Posts prices✗ Posts plan price✗ Whole-house plan✓ Locally owned3/8
8Michael & SonAlexandria · Google 4.7 from 19,248 · Yelp 2.3 from 1,797✓ HVAC + plumbing license✗ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✓ Posts prices✗ Posts plan price✗ Whole-house plan✓ Locally owned3/8
9F.H. FurrManassas · Google 4.8 from 26,399 · Yelp 1.7 from 880✓ HVAC + plumbing license✗ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✓ Posts prices✗ Posts plan price✗ Whole-house plan✗ Locally owned2/8
10Snell Home ServicesSterling · Google 4.8 from 5,884 · Yelp 3.1 from 255✓ HVAC + plumbing license✗ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✓ Posts prices✗ Posts plan price✗ Whole-house plan✗ Locally owned2/8
11John Nugent & SonsSterling · Google 4.7 from 1,940 · Yelp 3.6 from 212✓ HVAC + plumbing license✗ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✗ Posts prices✗ Posts plan price✗ Whole-house plan✗ Locally owned1/8
12Modern Mechanical (One Hour Heating & Air)Ashburn · Google 4.6 from 559 · Yelp 3.2 from 92✓ HVAC + plumbing license✗ Google 4.9+✗ Yelp 4.0+✗ Under 1% bad reviews✗ Posts prices✗ Posts plan price✗ Whole-house plan✗ Locally owned1/8

What Northern Virginia neighbors say about SwiftPro

New systems5 out of 5 stars

We had a complete HVAC replacement done by SwiftPro and it was a great experience all around. The price was was very fair (several thousand dollars below another company) and we arrived at the price very quickly with Joe. When I asked for additional options, SwiftPro was very responsive, and after I signed the contract, SwiftPro staff (Hannah and Nicole) were in touch to schedule the appointment quickly. …
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Our installation was seamless -- with Oscar and Elijah taking care of everything, leaving everything spotless, and answering all our questions. If you're looking for a fair price, responsive staff, and great quality work on HVAC or plumbing, it's worth adding SwiftPro to your list.

Allan P. · October 11, 2026Google (Chantilly profile) ↗

Plumbing repair Chantilly5 out of 5 stars

Harold Denton, our service tech, was courteous, knowledgeable, on time, & provided excellent service. I would definitely call SwiftPro again & gladly request that Harold provide any service needed.

Terri V. · October 2, 2026Google (Chantilly profile) ↗

Plumbing repair5 out of 5 stars

SwiftPro notified me when the plumber was on the way. The plumbers were professional and extremely competent. They explained how they would remove the blockage and estimated time to do the job. They covered the floor with a tarp and cleaned up any mess on the floor. I will use again and highly recommend.

Robert D. · September 29, 2026Google (Chantilly profile) ↗

Questions

Who is the best plumber in Loudoun County?

SwiftPro Heating, Cooling & Plumbing ranks #1 of the 12 plumbers with an office in Loudoun County in the 2026 Northern Virginia Home Service Report: all 8 checks, a Google rating of 5.0 from 884 reviews, Yelp 4.4 from 55, 0.45% of its Google reviews at 1 or 2 stars, Virginia Class A license 2705192276 for HVAC and plumbing, posted prices, a posted $199 a year maintenance plan that covers heating, cooling and plumbing, and locally owned in Chantilly.

How were these plumbers ranked?

The 12 plumbers with an office in Loudoun County, from the 71 heating, cooling and plumbing companies Northern Virginia reviews most on Google, each licensed in Virginia for plumbing. One point each: licensed in Virginia for both HVAC and plumbing · rated 4.9 or higher on Google · rated 4.0 or higher on Yelp, across at least 10 Yelp reviews · fewer than 1 in 100 of its Google reviews are 1 or 2 stars · posts prices for common jobs · posts its maintenance plan price · that plan covers heating, cooling and plumbing · locally owned. Ties go to the higher Google rating, then more Google reviews. The Yelp 4.0+, Under 1% bad reviews and Whole-house plan checks were added October 19, 2026, read the same way for every company.

Who comes second?

Cardinal Plumbing, Heating & Air (7 of 8 checks, Google 4.9 from 5,220 reviews, Yelp 4.2 from 299).

Plumbers by town and county

All of Northern Virginia Alexandria Arlington Ashburn Burke Centreville Chantilly Clifton Fairfax Fairfax Station Falls Church Great Falls Herndon Leesburg Manassas McLean Oakton Reston South Riding Springfield Sterling Vienna Woodbridge Fairfax County

HVAC companies in Loudoun County · The full report · Badges

Read October 5, 2026: Google Maps star counts, the Virginia contractor license file, and each company's website and Better Business Bureau profile; Yelp read October 19, 2026. A county page lists the companies with a Google profile at an address in that county; the boiler page, the ones whose own website offers boiler service. Distances run between town centers (US Census); a company whose Google profile hides its address is placed at its license ZIP. Download the data (CSV). Spot something wrong? Email info@goswiftpro.com.