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Sump pump replacement in Ashburn: $697 installed in your existing pit. A new pit, a battery backup, outside drain work or new wiring is extra.
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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 Ashburn
Before the pump itself, the rules here care about where its water ends up. Loudoun Water says a sump pump should not be connected to the sanitary sewer: the plumbing code Loudoun County enforces keeps storm water out of sewers meant for sewage only, and in a big storm that extra water can push sewage back up into houses. The discharge line should carry the water out onto the yard, far enough from the foundation that it can’t soak back down and return to the pit.
Your association has a say about the outside end. Ashburn Village wants any drain pipe extension longer than six feet buried, and kept out of the common areas and the neighbors’ yards. Brambleton’s guidelines want drainage tubing buried with no runs above ground, ending inside your own lot, never aimed at a neighbor’s yard, a street or a sidewalk, and a tie-in to a county storm drain needs Loudoun County’s approval first. Neither document names sump pumps, so check any outside line work against your association’s rules before anyone digs.
How old the pump is follows the street. Around Ashburn Farm and Ashburn Village the typical owner home dates to 1998, so a pit there probably isn’t on its first pump, or its second. In Brambleton, Loudoun Valley Estates, Moorefield and One Loudoun, where the medians run from 2011 to 2015, the builder’s pump may well be the one still running, and it’s living on borrowed time.
The Census survey behind these figures doesn’t ask about basements, so it can’t say how many Ashburn homes have a pit. It does say nearly four in ten homes here are townhouses, and more than half of all homes in Loudoun Valley Estates, Moorefield and Goose Creek Village. In a townhouse with a finished lower level, the pit often ends up under the stairs or behind a storage room panel. About one home in five is in a condo or apartment building, where a flat above ground has no pit of its own.
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 |
|---|---|---|---|---|
| Ashburn | 1998 | single-family houses, about 4 in 10 | gas, about 8 in 10 | 1980s and 90s basements: an original pump is long overdue. |
| Brambleton | 2011 | townhouses, about 5 in 10 | gas, about 8 in 10 | Newer basements: the pump may still be the builder’s. |
| Broadlands | 2004 | single-family houses, about 6 in 10 | gas, about 9 in 10 | Newer basements: the pump may still be the builder’s. |
| Loudoun Valley Estates | 2013 | townhouses, about 6 in 10 | gas, about 8 in 10 | Newer basements: the pump may still be the builder’s. |
| Belmont | 2005 | single-family houses, about 6 in 10 | gas, about 9 in 10 | Newer basements: the pump may still be the builder’s. |
| Moorefield | 2015 | townhouses, about 6 in 10 | gas, about 7 in 10 | Newer basements: the pump may still be the builder’s. |
| One Loudoun | 2015 | townhouses, about 4 in 10 | gas, about 7 in 10 | Newer basements: the pump may still be the builder’s. |
| University Center | 1996 | condo and apartment buildings, about 4 in 10 | gas, about 8 in 10 | Condo buildings: shared pits are the association’s to look after. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
When it’s time
If the discharge pipe empties right beside the house, the water can soak down to the foundation drain and land back in the pit, and the pump moves it twice. Carry it out into the yard, far enough that it can’t find its way back.
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.
Loudoun Water doesn’t want a sump pump draining to the sanitary sewer. Whoever replaces yours should follow the discharge pipe to where it actually leaves the house, not assume it goes outside.
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.
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Questions
No. The laundry sink drains to the sanitary sewer, and Loudoun Water says sump pumps shouldn’t discharge there. The water belongs outside, far enough from the foundation that it doesn’t seep straight back in.
If it has been running since the house went up around 2011, it’s past the age most sump pumps reach, and a dry week beats the night of a storm for swapping it. The date is usually on the pump’s label or in the builder’s paperwork.
Start at the far end of the line. Ashburn Village and Brambleton both want long drain extensions buried, so a sump line here often runs underground and comes up at a pop-up cap or an open pipe end out in the lawn, where mulch, sod or a mower can close it without anyone noticing. Make sure water came out there, then watch the pump empty the pit and stop. Storms here do close roads: flash flooding shut Belmont Ridge Road between Gloucester Parkway and Harry Byrd Highway on June 13, 2013, and on June 14, 2025 Broderick Drive near Waxpool Road stood under one to two feet of water in spots. If the pump ran nonstop or the basement took water, call us when it’s over. We’ll check the pump, the buried line and its outlet, and if the pump can’t keep up, a new one is $697 installed.
$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 Ashburn 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.