Open 24/7 for emergencies
A new well pump on your existing pipe and wire runs $2,781 to $4,000 installed.
Price range
$2,781-$4,000
8yrs @ 7.99%
$39/mo
15yrs @ 9.99%
$30/mo
Monthly figures on the starting price, the whole price financed, on approved credit. The lender sets the final terms. How financing works
Get your price in writing
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Well pump repair in Great Falls, 22066, where a private well is the rule: we test the pump, its wire and the pressure tank first, then fix what failed. The $49 plumbing visit that tests it first is waived when you go ahead with the repair.
5.0 stars across 1,132 reviews
Two of our plumbers in a Northern Virginia mechanical room, where a well’s pressure tank usually lives.
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 span of what we’ve quoted and sold for well work in 2026. Depth, wire and what’s worn out set where yours lands, in writing before anything comes out of the well.
Pressure switch replacement
$450 to $609
Pressure tank replacement
$2,200 to $2,950
or $37/mo at 0% APR for 60 months
Well pump replacement
$2,781 to $4,000
or $46/mo at 0% APR for 60 months
Well pump, new wire and drop pipe
$4,900 to $6,500
or $82/mo at 0% APR for 60 months
Well pump, pressure tank and switch
$6,200 to $8,000
or $103/mo at 0% APR for 60 months
Deep well or full system rebuild
$9,500 to $16,500
or $158/mo at 0% APR for 60 months
Plumbing visit, waived when you go ahead with the repair
$49
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
The $49 visit is waived when you go ahead with the repair. Pulling a pump just to look at it is $1,300 to $2,000, so we test the tank, the switch and the pump’s wire from the house first.
Replacing a pump needs no health department well permit in Virginia. We don’t drill or deepen wells; if yours needs that, we’ll tell you who to call.
Want your own number before anyone comes out? The well pump cost estimator asks what the water is doing and prices the likely fix.
What’s different in Great Falls
Across Fairfax County, only about 2 percent of residents draw water from a well of their own. Great Falls turns that around. The Health Department’s well map puts 3,644 of the county’s 15,636 mapped wells inside the Great Falls Census place, and its permit records show 3,552 active wells in 22066 alone. Those counts include some irrigation and geothermal wells, so not every one feeds a kitchen, but on the big lots off Georgetown Pike and Walker Road a pressure tank in the basement is the normal way a house gets water.
Half the houses here went up in the 1970s and 80s, and the well is usually as old as the house. The pump, the tank and the switch in it have each been replaced on their own schedule, or not at all. So the first question we ask in Great Falls is what’s been changed and when. A tank from the last owner and a pump from the builder are a different job than a system somebody redid five years ago.
Size matters on the water side too. The county’s tax records put the middle Great Falls house at about 3,700 square feet above ground with four full bathrooms. Three showers at once draw a small tank down fast, and the pump starts every time it does. Amtrol, which makes the tanks, says a bigger tank means more water between cycles and less running for the pump, so on a house this size we size the tank to the house, not just to the old one.
Recent Great Falls calls show the range. In September 2026 it was a 40/60 pressure switch leaking at the tank. In June 2026 an insurer wanted an automatic water shutoff on a well system, which meant draining the system and repiping part of the line. In February 2025 the gauge on a well system with a UV light read wrong, and the job was finding out why before anything got replaced.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
When to call
A lot of Great Falls wells run through filters or a UV light before the water reaches the house. When pressure drops, the filter can be the cause as easily as the pump, so we check what’s on the line before anyone blames the well.
A pump that starts every few seconds usually means the pressure tank lost its air cushion. Every start wears the motor, so it’s worth a call this week, not next month.
Check the well pump’s breaker first. If it tripped once, reset it once. If it trips again, leave it off: the pump, its wire or the switch needs testing.
When the power goes out
The Virginia Department of Health puts it simply: if your home is on a well, the pump won’t work when the power is out. Here’s what to do before, during and after.
When a big storm is coming, fill a few jugs and the bathtub. Once the pump stops, all you have is what’s left in the pressure tank, and toilets need water to flush.
Many well pumps run on 240 volts. Franklin Electric’s installation manual says a transfer switch must be used any time a generator backs up a well pump, and VDH says to have the hookup made by a licensed electrician.
Franklin’s minimum for a 1 horsepower two-wire pump is a 6 kW generator, and 4 kW for a 1 horsepower three-wire pump. Not sure which yours is? The control box on the wall in the basement means three-wire.
Give the pump a minute to refill the tank. No water? Look at the well pump’s breaker. A surge can also take out the pressure switch or the control box, which we can test from the house.
VDH says to treat a well that was under floodwater as contaminated, and not to run the pump until its wiring is dry. Then shock chlorinate the well and test the water one to two weeks later.
Virginia Cooperative Extension recommends shock chlorinating after any repair to a well system, then a bacteria test one to two weeks later. A well’s water is the owner’s to look after: the EPA doesn’t regulate private wells.
Power back and still no water? Check the breaker, then call us. We’ll test the switch, the control box and the pump from the house before anything comes out of the well.
Who keeps the well records
Fairfax County’s Health Department says every private well owner should test the water yearly for bacteria and chemicals, and that contamination can get in when the pump or plumbing is repaired. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who works on it
Questions to ask anybody who quotes you, us included.
Ask how they pick the tank. Matching the old one is easy; matching a house with four bathrooms and a finished basement is the job. A tank sized to how the house actually uses water saves the pump a lot of starts.
Pulling a pump is the expensive part of the job. Ask whether they check the tank’s air charge, the pressure switch and the pump’s amp draw and wire from the house first, so you don’t pay to pull a pump that was fine.
Ask for the part that failed and its price, written down, before the pump comes up. If the price can change once the pump is out, ask what would change it, like worn wire or a bad pitless adapter.
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.
“Tyson came out to diagnose our well system and did so with ease! Within no time he had it figured out and provided a solution for us. Very reasonable pricing, phenomenal quality of work and knowledge can’t be beat!”
Questions
Look in the basement or utility room for a pressure tank, a tall tank with a gauge and a switch on the pipe beside it, and in the yard for a well cap. No tank and a water meter instead means Fairfax Water. The Health Department’s well map shows where the county has a well on record.
Yes. The county’s Division of Environmental Health collects well water samples, tests them in its own lab and inspects the well head. After any pump work it’s a good time to ask, since the well was opened.
A new submersible pump on your existing pipe and wire runs $2,781 to $4,000 installed, and with new wire and drop pipe it’s $4,900 to $6,500. A pressure tank alone is $2,200 to $2,950 and a pressure switch is $450 to $609. You get the number in writing before we pull anything.
Not a well permit. Virginia’s private well rules say replacing a pump, or a well cap or seal with an equivalent one, isn’t a well alteration. Building, deepening or abandoning a well does need a health department construction permit.
Ready when you are
Call, or send the form at the top. No water at all? Call, and say so first. 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 Great Falls 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.