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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 Delaplane starts with three questions: how old the pit is, what powers the pump and where the discharge pipe ends. 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 Delaplane
The Census can’t say how many Delaplane houses have a pit, because it doesn’t ask about basements. ZIP 20144 counts 424 owner homes, nearly all of them detached, and the median one was built in 1986. About half date from 1980 through 1999. Where a house from those years has a pit, the pump in it has likely been swapped at least once, and an old one tends to give out on the first big storm of the fall, not on a dry day.
The village sits at about 449 feet beside Goose Creek, where USGS keeps a stream gauge, and FEMA maps a Zone A flood hazard within a few hundred yards of its center. The nearest long precipitation record, at The Plains nine miles east, averages 46.12 inches a year. On January 30, 2013, a flash flood put water over Winchester Road, a little over a mile north-northwest of town. Ground this close to a creek can keep sending water to a pit after the rain itself has stopped.
Wires fall in these storms before anything else does. NOAA estimated gusts of 80 to 90 miles an hour across the Delaplane and Marshall area on June 22, 2022, logged downed trees and wires near Delaplane on September 7, 2023, and logged trees and wires down at Delaplane Grade Road and Carr Lane on July 25, 2025. A pump on plain household power stops with the lights while the rain keeps coming. A battery backup covers that gap, and it is one of the extras, priced in writing before we start.
Cold works on the outside end of the system. Warrenton’s station averages 98 nights a year at or below freezing, the January snow normal at The Plains is 8.4 inches, and in January 2016 the Weather Service estimated 24 to 36 inches across Northern Fauquier. Fauquier’s design criteria set frost depth at 24 inches, so the ground can freeze that far down. A discharge pipe that stops at the surface can ice over at its mouth, and then the pump pushes against a plug. Outside discharge work is another of the extras, and it gets a written price first.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIP 20144 as a whole: every Delaplane address.
When it’s time
If the pit is climbing and the power is out, the pump isn’t necessarily broken; it’s unpowered. In Delaplane the storms that put trees on wires bring the rain along with them. Once the lights return and the pump still won’t start, or the pit stays full, call us after the storm and we’ll check it.
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 Delaplane lot can have a septic field, a well and a creek bank all in play, so where the pipe empties matters. Ask the installer to walk the line from the pit to its end, and to list any outside work as its own item in writing before it begins.
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.
Replaced 2 sump pumps. Very professional, proficient, and courteous.
Where we work
Next door to Delaplane: Rectortown, Upperville, Marshall, The Plains and Orlean.
Questions
It shouldn’t. A drainfield is sized for what the house sends it, and a pump clearing a flooded pit can send far more. Outside the public sewer areas the Fauquier County Health Department permits septic systems, so the question of where yours sits is theirs to answer. The discharge belongs out on open ground, away from the house and the field.
Virginia’s 2004 survey of the Crooked Run Valley described a share of its recent houses as weekend or seasonal homes, and an empty house can’t hear a failed pump. A water alarm comes with the pump, but it only helps if someone is there to hear it. For a place you leave for weeks, ask about a battery backup, and about who can look in after a big storm.
$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 Delaplane 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.