Open 24/7 for emergencies
Drain cleaning for one fixture is $200 to $800 and toilet repair is $250 to $900, from our published price list.
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A plumber for Sterling, from Sterling Park to Cascades, Lowes Island and Arcola: leaks, drains, frozen pipes and pressure valves, priced first.
5.0 stars across 1,132 reviews
Part of our plumbing team, with the drain machine, the sewer camera and the jetter they bring to the house.
Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceOften same-day, 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 same list as our plumbing page, every line a range because the house decides where it lands. You get the number before the work starts.
Drain cleaning, one fixture
$200 to $800
Main sewer line cleaning
$550 to $1,650
Sewer camera inspection, added to a visit
$89
Leak detection
$200 to $500
Toilet repair
$250 to $900
Pressure reducing valve replacement
$500 to $1,000
Water heater replacement
$2,757 to $10,486
or $46/mo at 0% APR for 60 months
Monthly figures: 60mo @ 0% APR on each starting price, the whole price financed, on approved credit. Longer plans lower the payment and cost more in total. The lender sets the final terms. How financing works
A sewer camera inspection is $89 added to a visit we’re already making. It’s the cheapest way to know what a drain is doing before anybody talks about digging.
With Comfort+ membership, any service is 15% off, and a water heater flush with a sewer camera inspection and a plumbing safety inspection comes every year.
Recent work
What our technicians found and fixed on visits in Sterling, from their notes on each job.
October 2026
An old electric water heater out and a new 50 gallon electric tank in, with a new drain pan, shutoff ball valve and expansion tank.
September 2026
A new 3/4 inch pressure reducing valve to bring high water pressure down, plus corroded washer valves and hoses replaced and the drywall around the box patched.
September 2026
A three year old tankless water heater in a balcony closet flushed with descaler for over an hour, rinsed, and the hot water back on.
Who comes out
Two of the people we send, in their customers’ own words from our Google reviews. The same team covers Sterling from our Chantilly shop and our Ashburn office.
I had an old leaky pressure regulator that needed to be replaced. I was also given a price range up front when scheduling the service. … Justin was friendly and profesional, and he did a phenomenal job with it.
He went to work right away, assessing the problem with our sump pump, explaining it to me, and providing a potential solution, including full transparency on pricing.
What’s different in Sterling
Loudoun Water says most houses built after 1972 came with a pressure reducing valve, a bell-shaped fitting near the main shutoff. That splits Sterling. About four in ten homes around Sterling Park and in Sugarland Run predate 1980, so some of the oldest may never have had one. Countryside, Cascades and Lowes Island are mostly 1980s and 90s, so an original valve there is thirty or forty years old, and a tired one lets pressure creep until fill valves hiss and faucets drip. A new one runs $500 to $1,000.
Winter is hard on pipes out here. NOAA’s normals for Dulles Airport, next to Sterling, count about 102 nights a year at or below freezing, against about 60 at Reagan National. Loudoun Water’s advice for a cold snap: trickle cold water at the faucet farthest from the main shutoff, open the cabinets under the sinks, keep the heat at 55 or higher when you travel, and drain the lines to the outside faucets each fall.
Loudoun Water’s list of what to keep out starts with wipes, flushable ones included, which don’t break down like toilet paper, and grease. The garbage disposal doesn’t stop grease, and hot water only carries it farther down before it sets. When the clog is in the main, main sewer line cleaning is $550 to $1,650, and a sewer camera inspection added to that visit, $89, shows where it sits.
If your yard has in-ground sprinklers, Loudoun Water requires a backflow preventer on them, tested by a certified tester when it goes in and every year after, with the results sent in. A system you’ve stopped using drops off that list once a certified irrigation contractor or plumber cuts and caps it.
Neighborhood by neighborhood
Census figures for each place, and the pipe that usually goes with houses that age. Median year built and heat count owner-occupied homes only.
| Place | Median home built | Most homes are | Heated with | The pipe you usually find |
|---|---|---|---|---|
| Sterling | 1979 | single-family houses, about 5 in 10 | electricity, about 5 in 10 | Copper supply, cast iron drains. |
| Lowes Island | 1996 | single-family houses, about 6 in 10 | gas, about 7 in 10 | Copper or PEX supply, PVC drains, original water heaters aging out. |
| Cascades | 1996 | townhouses, about 4 in 10 | gas, about 8 in 10 | Copper or PEX supply, PVC drains, original water heaters aging out. |
| Sugarland Run | 1983 | single-family houses, about 6 in 10 | gas, about 5 in 10 | The polybutylene years: check the supply pipe; PVC drains. |
| Dulles Town Center | 1998 | condo and apartment buildings, about 5 in 10 | gas, about 9 in 10 | Condo buildings: shared risers, your own supply lines and fixtures. |
| Arcola | 2017 | townhouses, about 5 in 10 | gas, about 8 in 10 | PEX supply, PVC drains, builder water heaters from the 2010s. |
| Oak Grove | 2005 | townhouses, about 8 in 10 | gas, about 9 in 10 | Copper or PEX supply, PVC drains, original water heaters aging out. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
What you’d notice
A hose left on an outside faucet through a Sterling winter can trap water that freezes and splits the pipe inside the wall, and nothing shows until spring. If the line wasn’t drained last fall, open the faucet with someone watching the wall behind it.
Polybutylene, often stamped PB, went into houses from about 1978 to 1995. It tends to let go at the fittings with no warning, so it’s worth knowing whether you have it.
A damp patch on a ceiling, a warm spot on the floor, a meter that keeps ticking with every tap off. A slow leak inside a wall does most of its damage before it ever shows itself.
One slow sink is a sink. Two slow drains on different floors are sharing the pipe out to the street, and a basement drain that gurgles while you run water upstairs is the main line talking.
After a heavy rain
Heavy rain finds the weak spots in a house’s plumbing. Four checks you can make yourself, then call us and we’ll look at the rest.
Clear water with no smell is usually groundwater. Gray water, or a sewer smell, means the main line is backing up: stop running water in the house and call us.
A main line with a cracked joint or roots in it can take in groundwater during a storm and slow down. A sewer camera inspection, $89 added to a visit, shows where.
If the house has one, watch it once: it should start as the pit fills, empty it and shut off. Our sump pump replacement page has the rest of the checks.
If floodwater got to a gas water heater’s burner or controls, leave it off. Don’t relight it until a plumber has checked it.
Call us after a storm and we’ll check it all: the floor drains, the main line, the sump pump and the water heater. Any repair gets its price in writing before the work starts.
Your pipes, your paperwork
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing a plumber
Questions worth asking anybody who comes out, us included.
Loudoun Water asks every household to know where the main shutoff is and to label it. A plumber already in the house can find it, check that it still turns, and tell you if it’s seized.
Anyone can check on the state’s license lookup in about a minute. It’s the one question that takes the guesswork out of the rest.
A sewer camera inspection is cheap next to any dig, and it shows whether the problem is a root, a sag or a break. A quote to dig without one is a guess.
Every plumbing job on our list has a range. A plumber who won’t say where yours lands until the wall’s open is asking for a blank check.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,132 reviews. Read them on our reviews page.
Zabi did a great job. Fill valve, flush valve and gaskets replaced on this 30-yr-old toilet. No leaks, no run-on.
Where we work
Next door to Sterling: Ashburn, Herndon, Reston, Great Falls and Chantilly.
Questions
It can, as a courtesy. Its rules forgive the overage, water and sewer, measured against your past use in the same quarters, for up to two quarters: on a leak in the buried pipe between the meter and your shutoff, and once per account on a hidden leak indoors. Running hoses, sprinkler settings and faulty timers don’t count. An indoor claim goes in writing with the repair receipt, so keep ours.
Loudoun Water, which runs an after-hours emergency line. If the meter sits in a crock in the yard, don’t open it yourself; Loudoun Water says that can damage the meter and bring a fine. Past the meter, it’s a plumber’s call.
Because rain gets into the sewer. Loudoun Water lists the ways in: cracks in mains and private laterals, and downspouts, area drains, window wells and sump pumps tied into the line. In a major storm, it says, that clear water can force sewage back into homes, and its capital plan lines every lateral in the Cabin Branch sewershed, part of Sterling Park, partly because rain keeps leaking in there. If a floor drain gurgled or backed up in the last storm, call us once it passes. A sewer camera inspection added to the visit is $89 and shows whether your lateral lets water in, and we’ll trace where the sump and downspouts really empty while we’re there.
It depends on the job, and every one has a published range: drain cleaning for one fixture $200 to $800, main sewer line cleaning $550 to $1,650, leak detection $200 to $500, a pressure reducing valve replacement $500 to $1,000, toilet repair $250 to $900. A sewer camera inspection added to a visit is $89.
Ready when you are
Call, or send the form at the top. You get the price before the work, and if it can wait, we’ll tell you that too.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
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 Sterling and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,132 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.