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Sump pump replacement in Woodbridge: $697 installed in your existing pit. A new pit, a battery backup, outside drain work or new wiring is extra.
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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 Woodbridge
Start with whether there’s a pit at all. No Census table counts basements. About half of Woodbridge’s homes are detached houses, close to three in ten townhouses and one in six in condo or apartment buildings, where a unit above the ground floor has nothing to pump. If your lowest level is below grade, look for a lidded round basin sunk into the floor, usually in the utility room or a corner nobody finished.
Where there is one, the ground sets its workload. Prince William County sorts its soils into three engineering categories: I is good ground, II flags things like high groundwater, and III takes in marine clay, shrink-swell and compressible soil, undocumented fill and floodplain. On a sample of the county’s soil map, the Woodbridge CDP along Route 1 comes out nearly all II or III, a third of it III, and Leesylvania about four in ten III. Potomac Mills and Dale City hold the most good ground, close to half and about a third Category I.
There’s a catch near Route 1. The categories rest on a soil survey published in 1989, and the county says ground already built on by then wasn’t studied. About half the Woodbridge CDP’s land is mapped simply as urban land. Under many of the older houses there the map has little to say, so how often the pump runs after a storm is the better guide.
In Leesylvania and County Center the typical owner’s house dates from 2006, the year the county’s foundation drainage policy took effect. It has the builder show the sump pump running at the final inspection, and some of the pumps that passed may still be in the pit. Inside the Lake Ridge association a new discharge line has rules too: buried and aimed away from the neighbors if it crosses the front yard, any buried line ending inside your own lot, and the splash block in brick, stone, unpainted concrete, or black, brown or green plastic.
Neighborhood by neighborhood
Census figures for the owner-occupied homes in each place, and what to check on a sump pump in houses that age.
| Place | Median home built | Most homes are | Heated with | What to check |
|---|---|---|---|---|
| Dale City | 1983 | single-family houses, about 7 in 10 | gas, about 7 in 10 | 1980s and 90s basements: an original pump is long overdue. |
| Lake Ridge | 1985 | townhouses, about 4 in 10 | electricity, about 5 in 10 | 1980s and 90s basements: an original pump is long overdue. |
| Woodbridge | 1976 | single-family houses, about 4 in 10 | gas, about 5 in 10 | Older basements: check where the sump line empties. |
| Leesylvania | 2006 | single-family houses, about 4 in 10 | gas, about 6 in 10 | Newer basements: the pump may still be the builder’s. |
| Potomac Mills | 1988 | single-family houses, about 6 in 10 | electricity, about 7 in 10 | 1980s and 90s basements: an original pump is long overdue. |
| County Center | 2006 | townhouses, about 4 in 10 | gas, about 6 in 10 | Newer basements: the pump may still be the builder’s. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
When it’s time
In a Leesylvania or County Center house from the mid-2000s, the pump that ran for the county’s final inspection may never have been changed. Twenty years is far past what a sump pump is built for. Swap it in a dry month, before the pit is full.
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.
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 Woodbridge: Dumfries, Lorton, Triangle, Fairfax Station and Quantico.
Questions
Prince William County publishes its soil map in its open GIS data, with each soil’s engineering category. Category II or III under your lot means the county flags it for water or for harder engineering, and a pit there tends to work harder. If it’s mapped as urban land, judge by how the pump behaves after rain.
No. That capped pipe opens straight into your sewer line, and Prince William Water lists sump pumps tied into the sewer among the improper connections that cause sewer overflows. Send the water to open ground that falls away from the house; rerouting it counts as outside drain work, and you get that price in writing first.
It means the ground there holds water. The National Weather Service’s storm reports have Route 1 closed for flooding at Marys Way three times between 2018 and 2020, once with a foot of water over the road, and on July 21, 2018, water ran over Easy Street where it crosses Marumsco Creek. Low ground that floods the streets is often wet underneath too, so a pit nearby may keep filling well after the rain stops. Watch how long yours runs.
$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 Woodbridge 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.