Heating, cooling and plumbing in Fairfax Station, where the houses are big and the lots are bigger.
Big 1980s and 90s houses, thousands of them on a well or a septic tank. What we find in Fairfax Station homes, what the work costs, and who signs off.
- Prices in writing, first
- Dedicated HVAC and plumbing teams
- Virginia license #2705192276
Get your price in writing
Four bedrooms, a 1980s or 90s build, and often a well and a septic tank.
The 22039 ZIP is almost entirely single-family houses, 98 in every 100 by the Census count, and the county’s own records fill in the rest.
The houses. About 8 in 10 homes in 22039 went up between 1980 and 1999, half of them in the 1980s alone, and the median owner-occupied house dates from 1988. About 9 in 10 have four bedrooms or more, against about 4 in 10 across Fairfax County. A house that size often splits its heating and cooling into two systems, one for the main floors and one in the attic for the bedrooms.
The water and the drains. West of Ox Road, much of Fairfax Station drains to the Occoquan, and the county’s plan holds that land to one house per five to ten acres and leaves a lot of it outside the sewer area. The Health Department lists active septic permits on about 3,000 Fairfax Station properties and private well permits on about 1,700, nearly all of the well houses on septic too. Crosspointe is the exception: barely a handful of either, because its 1990s streets are on county sewer and Fairfax Water.
The heat. About 6 in 10 owner homes in 22039 heat with natural gas and about 3 in 10 with electricity, usually a heat pump. About 1 in 12 burn oil or propane, which means a tank on the property and a delivery schedule to keep.
Furnaces, heat pumps and the plumbing inside the house.
A dedicated HVAC team and a dedicated plumbing team, so the attic heat pump over the bedrooms and the water heater in the basement are one phone call.
Heating
Gas furnaces on Washington Gas, heat pumps in the all-electric houses, and oil and propane on some of the big lots. We work on the gas and propane furnaces and the heat pumps, not oil burners. Our Fairfax Station furnace repair page prices the common repairs, and our Fairfax Station heating guide covers multi-system houses and what a power outage does to them.
Cooling
In a big house the upstairs is often its own system, with the air handler in the attic and a drain pan under it. AC repair, duct cleaning and dryer vent cleaning in Fairfax Station each have a page of their own, and the Comfort+ membership covers the yearly visits.
Plumbing
Inside the house is ours: leaks, drains, the water heater, and the line out to the street or to the septic tank. The well pump, the pressure tank and the septic tank itself belong to licensed well and septic contractors. Water heater replacement and the yearly flush are priced on our Fairfax Station pages.
Fairfax Station prices, in writing before the work.
The same price book as every town we work in. A bigger house doesn’t change what a repair costs, and you see the number before anyone starts.
- AC run capacitor replaced$240 to $370
- Refrigerant topped up$190 to $740
- Condensate drain cleared$175 to $420
- Repair diagnostic visitabout $99
- Drain cleaning, one fixture$200 to $800
- Main sewer line cleaning$850 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
These lines come from the price book behind our plumbing page and our AC repair page. The water heater estimator prices a new tank with the permit already in the number.
Replacing one system out of two? The HVAC estimator gives the installed range by system size, so you can price just the one that failed.
One county, two kinds of water, two places a drain can end.
Your water
If you pay a Fairfax Water bill, its 2025 lab results ran from 3.0 to 10.8 grains per gallon by plant and month, moderately hard to hard. If the water comes from a well on your lot, no utility report covers it: the county Health Department says well owners should test every year, and asking for hardness on that test gives you your number.
Reports: Fairfax Water, 3 to 10.8 gpg.
Your permit office
Fairfax County, for every Fairfax Station address. A gas or propane furnace or water heater needs a county permit even like for like, plus a chimney vent certification. A new well or septic system goes through the Health Department instead, which reviews the drawings and issues its own construction permit.
Permit pages: Fairfax County.
Where your drains go
On county sewer, Crosspointe included, county code makes the homeowner the owner of the whole lateral, from the house to the county main, under the street too. On a septic lot there’s no lateral to the county at all: the line ends at your own tank, and county code calls for that tank to be pumped at least once every five years.
Sources: Fairfax County Code 65-6-5 and the Health Department’s septic and well program and the county plan for the Pohick district.
What our customers say.
Excellent experience from beginning to end. Prompt response when our AC went out on a 93-degree day. The technician explained the issues and did not try to upsell me on anything I didn’t need. Highly recommend.
Very fast response to my initial inquiry. Set up an appointment for the next morning and the technician, Xavi, arrived in the agreed-upon timeframe. He went to work right away, assessing the problem with our sump pump, explaining it to me, and providing a potential solution, including full transparency on pricing. The work was done quickly and expertly. He even took time to explain to me why it happened and steps I can take to prevent it in the future.
I had a great experience with Aaron and Luke for my duct and dryer vent cleaning. They were very professional, friendly, and punctual. After the inspection, they clearly explained the work needed and provided the price upfront before starting. I especially appreciated their dedication, they even came back with a larger ladder to finish the duct cleaning properly. Their attention to detail and customer service really stood out. I would definitely recommend Aaron and Luke to anyone in need of duct or dryer vent cleaning!
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.
All of 22039, Crosspointe out to the Occoquan.
East of Ox Road: Crosspointe and the streets off Hooes and Silverbrook Roads, and Burke Lake Park. West of it: Fairfax Station Road and the railroad museum, Clifton Road, Henderson, Yates Ford and Wolf Run Shoals Roads, and Hampton Road out to Fountainhead Regional Park. Next door:
Questions we get from Fairfax Station.
Does SwiftPro work on houses with a well and a septic tank?
Yes, on everything inside the house: the plumbing, the water heater, the drains and the line out to the tank, plus the heating and cooling. The well pump, the pressure tank, the septic tank and the drainfield are licensed well and septic contractors’ work, and we’ll tell you when the trouble is on their side of the line.
Is my Fairfax Station house on gas, oil or propane?
Your bills will say: Washington Gas, an oil dealer or a propane supplier. Across 22039 about 6 in 10 owner homes heat with natural gas and about 3 in 10 with electricity, and oil and propane split the rest. Tell us the fuel when you book: we work on gas and propane furnaces and heat pumps, not oil burners.
Who supplies the water in Fairfax Station?
It depends on the lot. Crosspointe and the other neighborhoods on public water get Fairfax Water, whose 2025 results ran 3.0 to 10.8 grains per gallon. About 1,700 Fairfax Station properties hold a county well permit instead, many of them along Hampton, Henderson, Wolf Run Shoals and Yates Ford Roads, and there the water is whatever the well brings up.
Do I need a permit to replace a propane water heater in Fairfax Station?
Yes. Fairfax County wants a permit for any gas appliance replacement, like for like included, with a chimney vent certification, and a propane tank water heater counts as one. Our water heater estimator puts the permit in every price.
How old are the houses in Fairfax Station?
Mostly 1980s and 90s. About 8 in 10 homes in the 22039 ZIP went up between 1980 and 1999, and the median owner-occupied house dates from 1988; Crosspointe runs younger, with a median of 1993. Most of those houses are on their second furnace and air conditioner by now, and many were plumbed in the years grey polybutylene supply pipe was in use.
Well or Fairfax Water, gas or propane, tell us your road.
Call with your road and what the system is doing. We’ll tell you what a house out there usually has and what the job usually costs before anyone drives over.
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company serving Northern Virginia, including Fairfax Station, Burke, Clifton and Fairfax. 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 Fairfax Station, SwiftPro repairs and replaces furnaces, heat pumps, air conditioners and ductless mini-splits, cleans air ducts and dryer vents, and handles plumbing from leaks and drains to water heaters, sewer laterals and the line out to a septic tank, all across 22039.
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.