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Sump pump replacement is $697 installed in your existing pit, with a new cast iron pump and a quiet check valve.
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Sump pump replacement in Philomont, a village bounded by creek tributaries, with flood records on the roads around it. A new or deeper pit, a battery backup, discharge line work outside and a dedicated circuit are extra, priced in writing before we start.
5.0 stars across 1,132 reviews
Two of our technicians in a basement mechanical room, beside the furnace and a gas water heater.
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 price as our sump pump replacement page: one flat number for a new pump in a pit that’s still sound, with what costs extra named right beside it.
Sump pump replacement, installed in your existing pit
$697
Sump pump and battery backup, installed together
$3,200
or $53/mo at 0% APR for 60 months
A new or deeper pit, discharge line work outside, or a dedicated circuit
Priced in writing before we start
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
$697 covers a new cast iron pump, a quiet check valve, new PVC up to your existing discharge line, a battery water alarm by the pit, the old pump hauled away and a bucket test before we leave.
A battery backup keeps pumping through a power outage, and the outage usually comes with the storm. With a new pump, the pair is $3,200 installed. The sump pump estimator helps you decide whether you need one.
What’s different in Philomont
The 2023 NRHP nomination puts Philomont in the center of the Loudoun Valley, among rolling hills and abundant waterways, with a Butcher’s Branch tributary to the north and a Beaverdam Creek tributary to the south. The stream gauge at Mountville, about a mile south-southeast, reached flood stage on May 16, 2014, and flooding closed Snickersville Turnpike near Hibbs Bridge Road on September 28 and December 15, 2018. That does not prove one basement is wet, but it shows what a wet year looks like here.
Pumps wear out faster than houses do. The median owner home in ZIP 20132, the Purcellville ZIP area Philomont sits in, dates to 2000, and about 48 percent of homes went up since then, so a pump that came with the house has had a long run. About 24 percent of homes there predate 1980. In those, a pit may be older than its pump and worth a look when the pump comes out.
The pump runs on household power, and storms take the power. Snow-loaded trees and lines caused outages across Loudoun County in the February 2010 storm, and trees came down, some on wires, at Snickersville Turnpike and JEB Stuart Road in June 2016. The $697 price assumes the pit you already have. Four add-ons sit beside it: a dedicated circuit, a battery backup, discharge work outdoors and a pit that is new or deeper. Take the battery with it and the pair, installed together, comes to $3,200.
The discharge line has its own winter. Lows at the Purcellville station reach 32F or colder on 114.7 days a year, and Loudoun’s building code works from a 24 inch frost depth. A line laid shallower than that, or pitched so water sits in it, is likelier to ice shut, and a pump pushing into ice finds nowhere to go. Line work outdoors is quoted in writing before a shovel goes in.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Philomont’s own ZIP, 20131, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20132 as a whole, the Purcellville ZIP area Philomont sits in, the Town of Purcellville included.
When it’s time
A pump that runs and runs while the water climbs is failing, clogged at the check valve, or facing a discharge line that cannot take the flow. The Purcellville station averages 43.78 inches of precipitation a year, and a pump that struggles in one wet week is not ready for a wet season.
Zoeller, who make a lot of the pumps around here, puts a sump pump’s life at seven to ten years. Past seven, replace it on your schedule instead of the storm’s.
Water is running back into the pit through a check valve that no longer closes, so the pump moves the same water again and again until it wears out.
After a heavy rain
Six checks you can make yourself once the rain lets up, none of them with your hands in the pit. Then call us and we’ll check it all.
Watch the pit during the rain or right after. The pump should start as the water rises, empty the pit and shut off. A full pit, or a pump that hums and moves nothing, isn’t keeping up.
Walk the basement: the corners, the walls, the floor by the pit, under the water heater and the furnace. Photograph any wet spot before you mop, so we can see where it came in.
Outside, find where the pump’s pipe ends. It should be open, not crushed, buried or full of leaves, and aimed away from the house so the water doesn’t run back to the foundation.
Listen when the pump shuts off. Water rushing back into the pit means the check valve isn’t closing, and the pump has to move that water again.
The pump stops when the power does, often at the height of the storm. If the basement took water during an outage, that’s the job a battery backup does.
If water is standing near the pit, an outlet or anything plugged in, don’t wade in to check. Call us, and only switch the power off at the panel from somewhere dry.
Not sure what you saw? Call us after a storm and we’ll check it all: the pump, the float, the check valve, the discharge line and where the water came in. If the pump can’t keep up, a new one is $697 installed in your existing pit; a new or deeper pit, a battery backup, discharge line work outside and a dedicated circuit are extra, priced in writing before we start.
Choosing who replaces it
Questions to ask anybody who quotes you, us included.
A pump that pushes into a kinked, iced or too shallow line has fixed little. Ask whether the plumber follows the line outside and tells you what it needs, and whether work out there is priced in writing before anyone digs.
Ask what the number covers: the pump, the check valve, the pipe, hauling the old one off, a test before they leave. Then ask what costs extra, and get it in writing.
Cast iron, ideally. Plastic pumps cost less and are usually the ones that quit early. Ask before the old one comes out.
A discharge line that’s cracked, buried or frozen shut every January leaves the new pump pushing against a closed pipe. Whoever replaces it should check the outside end too.
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.
Tech was super knowledgeable, polite, communicative, and kind. I highly recommend this great company who prioritized my request to review my sump pump and other related needs
Where we work
Next door to Philomont: Middleburg, Round Hill, Bluemont, Purcellville and Hamilton.
Questions
Not by itself, since it needs household power. Add a battery backup: the pump and battery together are $3,200. The pump-only price, $697, covers the pit you have now, and a new or deeper pit, outside discharge work, the battery and a dedicated circuit each cost extra.
Yes, a water alarm comes with it. It gives you notice when the water in the pit climbs where it should not, so you hear about trouble before you see it. That early warning matters most when the pit sits out of sight.
$697 installed in your existing pit: a new cast iron pump, a quiet check valve, new PVC to your discharge line, a battery water alarm, the old pump hauled away and a bucket test. A new or deeper pit, discharge line work outside, a battery backup and a dedicated circuit are extra, priced in writing before we start. A new pump and a battery backup installed together are $3,200.
Yes. Pour five gallons of water into the pit. The float should rise, the pump should start within a few seconds, and it should shut off clean once the water’s down. If you hear water rushing back into the pit after it stops, that’s the check valve.
Ready when you are
Call, or send the form at the top. Often same-day, and we will tell you honestly when we can get there.
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 Philomont 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.