The cap near the front walk
Most Dumfries homes have a capped pipe near the property line, the cleanout. Keep the cap on and keep it clear of mulch and toys. It’s how we reach the line quickly, and a missing cap lets dirt and rain in.
Dumfries, Virginia
Drain cleaning in Dumfries.
For drain cleaning in Dumfries, one clogged fixture drain is $200 to $800. 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 Dumfries are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. We cover drain cleaning in Dumfries, from the Town’s older streets to its townhouse rows and the newer homes of Montclair and Cherry Hill. Priced before we start. A main line backing up into the house is $550 to $1,650. Adding a camera look while we’re there is $89.
- Priced before the machine runs
- Our own licensed plumbers
- Camera when it’s worth it
5.0 stars across 1,130 reviews
Our plumbing team with the drain machine, the jetter and the sewer camera.
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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
What drain cleaning costs in Dumfries.
Where the clog sits decides the price. A sink, tub or shower drain is one fixture. When every drain in the house is slow or water comes up the lowest one, it’s the main line, and that’s a bigger machine and a longer run.
Drain cleaning, one fixture
$200 to $800
Main sewer line cleaning
$550 to $1,650
Sewer camera inspection, added to a visit
$89
Prices checked .
If the main line clogs again inside a year, or the cable comes back with roots, a camera look for $89 on the same visit tells you whether it’s a clog or a broken pipe. We show you the picture either way.
Comfort+ membership is $199 a year for four visits: a dryer vent cleaning, a water heater flush with a sewer camera inspection, a heating maintenance visit and a cooling maintenance visit.
What’s different in Dumfries
In Dumfries, townhouse rows and a cleanout near the property line decide most clogs.
Dumfries splits almost evenly between houses and townhouses: 43 in 100 of the Town’s owner homes are detached, and 43 in 100 are townhouses. The rows came in the 1970s through 1990s, Williamstown from 1974 to 1991, Port O’Dumfries from 1974 to 1988, South Cove from 1988 to 1992. Those years straddle the changeover to plastic drains, so the first thing a townhouse clog needs is someone to find out what pipe the row actually has.
Where the cable goes in matters. Prince William Water says the lines on your private property are yours, and a sewer cleanout, a capped pipe it describes as generally near the property line, is the way into the line. In a townhouse row, that cap can be a few steps from the front door, or around back past a fence. We look for it first, because going in there beats pulling a toilet, and we tell you where it is for the next time.
The older single-family streets are the other kind of job. About 1 in 10 of the Town’s owner homes predate 1960, and 4 in 10 predate 1980. The kitchen lines in those houses are cast iron by default, scaled narrow, and the 1950s and 60s ones can carry years of grease at a bend. A cable opens them. In the 1980s and 90s houses that make up the rest of the Town, the clog is nearly always something that went down.
South of the Town, Montclair and Cherry Hill are newer. The median owner home in Montclair was built in 1989, and in Cherry Hill in 2005, and about 4 in 10 Cherry Hill homes are townhouses. We are mostly clearing grease and hair from fixtures there, one visit and done. When it isn’t, we’ll tell you the clog went past the property line and into the utility’s main, and that’s Prince William Water’s to handle.
Neighborhood by neighborhood
What’s under the floors across Dumfries.
Census figures for the owner-occupied homes in each place, and where houses that age usually clog.
| Place | Median home built | Most homes are | Heated with | Where it usually clogs |
|---|---|---|---|---|
| Montclair | 1989 | single-family houses, about 8 in 10 | electricity, about 5 in 10 | Wipes and grease in PVC; a low spot outside. |
| Cherry Hill | 2005 | townhouses, about 4 in 10 | gas, about 7 in 10 | The kitchen line, from grease. |
| Dumfries | 1985 | townhouses, about 4 in 10 | electricity, about 5 in 10 | Wipes and grease in PVC; a low spot outside. |
By the numbers
Dumfries houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
The Town of Dumfries
Nearly all of the Town sits in 22026, with a sliver in Triangle’s 22172. None of it is in 22025.
- Median home built1985 Census
- Built before 1980about 4 in 10 Census
- Built since 2000about 1 in 10 Census
- Most homes aretownhouses, about 4 in 10 Census
- Heated withelectricity, about 5 in 10 Census
- Rentedabout 2 in 10 Census
- Houses from the 80s and 90s mostly drain through PVC, so a main line clog there is usually what went down it, or a low spot in the yard.
The Prince William County side
Montclair in 22025, where the Postal Service accepts Montclair as the town name; Southbridge and Cherry Hill in 22026, outside the town line.
ZIPs 22025 and 22026 as a whole: Montclair, Cherry Hill and the rest of Dumfries mail, the Town’s homes included.
Which clog it is
One slow drain, or the whole house backing up in Dumfries.
The townhouse next door backed up too
Townhouse rows often share a line before it reaches the street. If a neighbor is fighting the same clog, tell us, because the fix may be on common pipe the association handles.
Only one sink or tub is slow
If the kitchen sink backs up but the bathroom drains fine, the clog is in that branch, usually grease or food in the kitchen, hair and soap in a tub. That’s a one-fixture clearing.
Need drain cleaning in Dumfries?
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Choosing who clears it
How to pick the best plumber for drain cleaning in Dumfries.
Questions to ask anybody who offers to clear a drain, us included.
Do they find the cleanout before they start?
A plumber who can point at the capped pipe near the property line is working the way the utility describes. One who goes straight to pulling a toilet may not have looked.
Do they price it before they run the cable?
You should hear whether it’s a one-drain clearing or the main line, and the price for it, before anybody feeds a cable in. A price that shows up after the work is a bad sign.
Do they push chemicals or a new line on the first visit?
A clear drain doesn’t need a bottle of anything, and a single clog is not a reason to dig. If someone jumps to replacing the sewer line without a camera picture, get a second look.
Two of our crew going over a work order before the day's calls.
From our Google reviews
What our customers say.
5.0 stars across 1,130 reviews. Read them on our reviews page.
Idk why they told me on the phone it cost me 49 but whn he got here it cost me 260 for clogged toilet
- 5.0stars across 1,130 reviewsHow we count them
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- 2026Voted a Nextdoor Neighborhood Faves winner two years running: 2026 in 30 Northern Virginia neighborhoods, 2025 in Emerald Chase (Herndon) and Hunters Run (Chantilly)See it on Nextdoor
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- Class AVirginia contractor, license #2705192276Look it up with DPOR
Where we work
Drain cleaning in every Northern Virginia town we serve
Next door to Dumfries: Triangle, Quantico, Woodbridge, Lorton and Stafford.
Fairfax County
Arlington County
Loudoun County
Prince William County
Fauquier County
Stafford County
Every town on one page
Questions
Drain questions from Dumfries.
Is a clog in my Dumfries townhouse the Town’s problem?
Not usually. Prince William Water says the lines and connections on private property belong to the owner, so a slow drain in your unit is yours to clear. If a neighbor’s drain acts up too, tell us, because the clog may be past the cleanout, and then it’s the utility’s pipe.
How do I know my Dumfries cleanout is the right one?
It’s a capped pipe, usually near the property line, and it should be the only one on your lot. If you find two, one may belong to a neighbor on a shared run. We’ll check before we open anything.
How much does drain cleaning cost in Dumfries?
One clogged sink, tub or shower drain is $200 to $800. A main line backing up into the house is $550 to $1,650. Where the clog is and how far down it sits moves the number inside that range.
Should I pour a drain cleaner in first?
Better not. The strong ones can sit in the trap, damage older pipe, and splash back on whoever opens the drain next. Try a plunger on a sink or tub, and if that doesn’t move it, call.
Ready when you are
Get the water moving again.
Call, or send the form at the top. You get the price in writing before the machine runs, and if it’s a pipe problem and not a clog, we’ll show you.
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 Dumfries 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.