Heating, cooling and plumbing in the Town of Quantico, the town inside the base.
Base housing is Liberty Military Housing’s to fix. The Town of Quantico’s houses, the oldest from 1915, are ours, and a repair diagnostic visit is $99.
- Prices in writing, first
- Dedicated HVAC and plumbing teams
- Virginia license #2705192276
Get your price in writing
Houses as old as 1915, small apartment buildings, and a few brand-new townhouses.
The 2020 Census counted 578 people and 376 homes in the Town. Of the 323 with someone living in them, 281 were rented, so the call to us is more often a landlord’s than a homeowner’s.
The houses. Prince William County’s address records list 143 houses in the Town, 96 detached and 47 attached, and date at least 59 of them to before 1940, the oldest to 1915. A house that age has usually had its pipes redone a piece at a time: galvanized steel supply here, cast iron drain there, copper or plastic wherever somebody opened a wall. Central air came decades after a house like that went up, so its ducts run wherever someone could make them fit.
The apartments. More than half the Town’s homes are units in small buildings on Potomac Avenue, Broadway Street, C Street and the numbered avenues. A handful of new townhouses and apartments went up on 3rd and 4th Avenues and C Street in 2024 and 2025, with new equipment and, most likely, PEX supply pipe.
The water. Marine Corps Base Quantico has piped the Town’s water in and taken its sewage away for nearly a hundred years, through mains the Town owns, and some houses still connect to mains that run down the alleys. That changes in 2026: the Town is replacing its mains and handing the whole system to Prince William Water.
Old pipe, new mains, and air conditioning in houses built long before it.
Our plumbers and our heating and cooling technicians are separate teams, and one call books either one.
Heating
In the Town’s older houses the furnace or heat pump is rarely the first heat the house had, so it often sits wherever it fit: a closet, a crawlspace or an attic. We repair and replace gas and propane furnaces and heat pumps. We don’t work on oil burners; if an older house still burns oil, we’ll price a heat pump to take its place.
Cooling
The Marine Corps air station’s weather station, about a mile and a half down the shore, averages about 30 days a year at 90 degrees or hotter, and it measured a heat index of 118 in July 2011. Where a house or an apartment has no ductwork, or no room for it, a ductless mini-split cools and heats a room at a time.
Plumbing
Galvanized supply pipe narrows from the inside as it rusts, so weak pressure upstairs is a common complaint in a house that old. The 2026 water project brings new meters and sewer cleanouts, and a plumber wherever a house has to be moved off an alley main onto a new one.
Inside the Town, the price book doesn’t change.
A Town of Quantico address is priced from the same book as every other town we serve, and the number is in writing before anyone starts.
- AC run capacitor replaced$240 to $370
- Refrigerant topped up$190 to $740
- Condensate drain cleared$175 to $420
- Repair diagnostic visit$99
- Drain cleaning, one fixture$200 to $800
- Main sewer line cleaning$550 to $1,650
- Leak detection$200 to $500
- Pressure reducing valve replacement$500 to $1,000
- Water heater, tank, installed$2,757 to $7,494
Every figure is pulled from our plumbing page and our AC repair page. For a new water heater, the water heater estimator prices yours with the Prince William County permit counted.
Replacing old heat in an old house? The HVAC estimator shows the installed range for a house your size before anyone visits.
The Town zones, the County permits, and the water is changing hands.
Your water
For now it’s the base’s water, run through the Town’s own mains. The Town’s water project, paid for largely by a state grant, replaces those mains, adds new meters and sewer cleanouts, and ties the Town into Prince William Water at Fuller Heights Road; Prince William Water then owns the system, runs it and bills you monthly. For a broken line, the Town’s Municipal Office, (703) 640-7411, shuts the water off; it answers weekdays from 9 to 2, and the Town’s water page lists an after-hours number.
Your permit office
The Town handles its own zoning and site plans, but Prince William County’s Building Development Division issues building and trade permits inside the Town. The County’s rules apply: a gas or propane furnace or water heater needs a permit even swapped like for like, while an electric water heater of the same size in the same spot, or a heat pump or air conditioner traded for the same type, doesn’t. A water heater that fails can be replaced first, with the application in by the end of the next working day.
Permit pages: Prince William County.
Your sewer
Today the Town’s sewage goes to the base. Under the project, a new pump station near 3rd Avenue and River Road lifts it up to Prince William Water’s line at Fuller Heights Road. After the handover, Prince William Water’s rules cover the pipe from your house to its main, including its own permit and inspection before anyone repairs or replaces that lateral outside the house.
Sources: the Town’s water project FAQ and the base’s Town access rules and the base’s family housing office.
What Northern Virginia homeowners say about us.
5.0 stars across 884 Google reviews. Read them on our reviews page.
Voted a Nextdoor Neighborhood Faves winner two years running: 2026 in 30 Northern Virginia neighborhoods, 2025 in Emerald Chase (Herndon) and Hunters Run (Chantilly).
Listed in both the HVAC and Plumbing categories of Northern Virginia Magazine’s Best Home Experts directory, which is exactly how we’re built: a dedicated HVAC team and a dedicated plumbing team.
Our vans in Quantico lately
In the last 30 days SwiftPro’s vans worked in Triangle, Dumfries and Woodbridge, the towns around Quantico.
Quantico is 27 miles from SwiftPro’s Chantilly shop, and the van that comes to you is coming from the last job, not from the shop. SwiftPro charges no distance fees anywhere it serves.
The Town’s own streets, and not the base around them.
In the Town: Potomac Avenue, Broadway Street, 2nd, 3rd, 4th and 5th Avenues, C Street, River Road and Summers Avenue, the streets of what the base’s own history calls the town that cannot grow. On base: family housing is owned, managed and maintained by Liberty Military Housing, and we don’t work there. Next door:
Quantico questions.
Can SwiftPro work on my base house at Quantico?
No. The base’s family housing office says housing aboard Marine Corps Base Quantico, 1,137 homes, is owned, managed and maintained by Liberty Military Housing, the company called Lincoln Military Housing until 2021. A dead furnace or a leak in base housing is Liberty’s to fix, and the base lists Liberty’s Quantico line as (703) 432-8500.
How does a SwiftPro van get to a house in the Town?
Along Fuller Road, the easement from Route 1 across the base to the Town. The gate checks everyone in every vehicle, and going anywhere on base other than along Fuller Road to and from the Town is federal trespassing. A Town resident or property owner whose base credential carries escort privileges can bring guests in their own car or in one more vehicle, five people at most. When you book, tell us you’re in the Town, and we’ll work out the gate with you before the visit.
Will I need a plumber when the Town switches to Prince William Water?
Possibly. The Town’s FAQ says houses tied to the old mains in the alleys will be moved onto the new mains, and a plumber will be needed to make that house connection. Prince William Water’s connection fee is already in the project’s budget, and the Town schedules the several hours your water is off with you ahead of time. If your house is one of them, our plumbing team will price the connection in writing.
What does a drain cleaning cost in the Town?
Clearing one fixture runs $200 to $800. Adding a sewer camera to that visit is $89, and before your lateral meets a new cleanout and a new main, it’s worth knowing what shape the old pipe is in.
What do I do if a pipe freezes in an old Town house?
Shut the water off first, at the house valve, or call the Municipal Office to shut it at the street, then call us. The air station’s normals put about 76 nights a year at freezing or below, and in late January 2026 wind chills from the Piedmont to I-95 fell to between 0 and 10 below, so in an old house the pipes to watch are the ones in an outside wall or a crawlspace.
In the Town of Quantico? Call us.
Tell us your street, whether you own or rent, and what the house is doing. We’ll tell you what’s usual for a Town house that age, what it costs, and how we’ll get through the gate.
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company serving Northern Virginia, including the Town of Quantico, Dumfries, Woodbridge and Lorton. SwiftPro holds Virginia contractor license #2705192276, is a Trane Comfort Specialist, Rheem Pro Partner and Mitsubishi Diamond Contractor, holds 5.0 stars across 884 Google reviews, was voted a Nextdoor Neighborhood Faves winner two years running, for 2026 in 30 Northern Virginia neighborhoods and for 2025 in Emerald Chase (Herndon) and Hunters Run (Chantilly), and is listed in both the HVAC and Plumbing categories of Northern Virginia Magazine’s Best Home Experts directory. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team. More at goswiftpro.com.
In the Town of Quantico, SwiftPro repairs and replaces gas and propane furnaces, heat pumps, air conditioners and ductless mini-splits, cleans air ducts and dryer vents, and handles plumbing from drains and leaks to water heaters, repiping and sewer lines. Family housing on Marine Corps Base Quantico is maintained by Liberty Military Housing.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151, (703) 997-9757. Every town we serve is on the town-by-town guide.