Both installed in Northern Virginia from $4,848, or $81/mo.
From about $81 a month at 0% APR for 60 months, the whole price financed, on approved credit.
A new water heater and a whole-home water filter from SwiftPro start at $4,848 installed in Northern Virginia, or $81/mo at 0% APR for 60 months. 5.0 stars across 1,100+ reviews. Call SwiftPro at (703) 997-9757, 24 hours a day, 7 days a week.
A.O. Smith 50 gallon tanks with a 6 year warranty. Each price is the two added together, with the $500 off the water heater already in it. Tap one to order it.
| Water heater | Watts OneFlow+ whole-home filter$2,070, or $35/mo | Whole-home water softener + carbon$2,800, or $47/mo | Complete water system$4,990, or $83/mo |
|---|---|---|---|
| 50 gallon electric$2,778, or $46/mo | $4,848$81/mo | $5,578$93/mo | $7,768$129/mo |
| 50 gallon gas$3,238, or $54/mo | $5,308$88/mo | $6,038$101/mo | $8,228$137/mo |
| 50 gallon power vent gas$5,595, or $93/mo | $7,665$128/mo | $8,395$140/mo | $10,585$176/mo |
Bigger tanks, propane and tankless are on the order page. Prices checked 2026-11-03. From about $81 a month at 0% APR for 60 months, the whole price financed, on approved credit.
Your water heater is fed by the line the filter goes on. A whole-home system goes in where the water comes into the house, so what fills your new tank has already been through it. Hard water is what leaves the crust inside a water heater, and a water softener takes that hardness out.
$2,070
installed, or $35/mo at 0% APR for 60 months
Every tap, on the main water line.
A filter housing piped in where the water comes in, on a copper bypass loop with tagged shutoffs, so the water stays on in the house while the cartridge is changed. Its label says scale prevention and water filtration with no salt, so there's nothing to carry down the stairs.
Pair it with a water heater$2,800
installed, or $47/mo at 0% APR for 60 months
Every tap, every shower and bathtub.
One tank where the water comes into the house. Salt-based resin takes out hardness, the scale on your faucets and the crust inside your water heater, and activated carbon takes out the chlorine taste and smell. You add salt to the tank.
Pair it with a water heater$4,990
installed, or $83/mo at 0% APR for 60 months
Every tap, plus Reverse Osmosis (RO) drinking water.
The whole-home water softener and carbon tank, plus Reverse Osmosis (RO) with its own small faucet at the sink you drink from.
Pair it with a water heaterNot sure? The $29 water test (normally $199) tests your water's hardness at your kitchen table and comes off a water treatment install if you go ahead. It's not a certified lab test. Your ZIP's water report shows what your utility found.
| What you're seeing | What fixes it | What won't |
|---|---|---|
| Scale on faucets, spots on glasses, a water heater full of sediment | A water softener | A carbon filter or a pitcher filter |
| A chlorine taste or smell at the tap | Carbon filtration | A water softener on its own |
| Disinfection byproducts on your utility's report | Carbon filtration at every tap, and Reverse Osmosis (RO) for the water you drink | A water softener on its own |
| Chromium-6 or nitrate on your utility's report | Reverse Osmosis (RO) at the sink you drink from | A water softener or a carbon filter |
Often, yes. Five of the six public water utilities here that print a hardness figure reach 7 grains per gallon or more, where water counts as hard, and the same utility can swing a lot through the year. Fairfax Water ran 3 to 10.8 grains per gallon in 2025. The City of Manassas is the lowest, at 2.7. Well water varies house to house, so test it at your tap.
| Utility | Hardness, grains per gallon | Over EWG's guideline | Furthest over |
|---|---|---|---|
| Fairfax Water | 3.0 to 10.8 (2025) | 9 contaminants, 7 of them disinfection byproducts | Haloacetic acids (HAA9), 473 times |
| Prince William County Service Authority | 2.6 to 10.5 (2025) | 9 contaminants, 7 of them disinfection byproducts | Haloacetic acids (HAA9), 510 times |
| Loudoun Water | None printed. Fairfax Water's Potomac plant, its source, ran 4.1 to 10.8 in 2025 | 9 contaminants, 7 of them disinfection byproducts | Haloacetic acids (HAA9), 552 times |
| Arlington County (DC Water Aqueduct) | 8.3 (2025) | 9 contaminants, 7 of them disinfection byproducts | Haloacetic acids (HAA9), 613 times |
| Virginia American Water (Alexandria) | 4.6 to 11.2 (2025) | 9 contaminants, 7 of them disinfection byproducts | Haloacetic acids (HAA9), 595 times |
| Town of Leesburg | 5.8 to 8.8 (2025) | 11 contaminants, 9 of them disinfection byproducts | Haloacetic acids (HAA9), 675 times |
| City of Manassas | 2.7 (2025) | 9 contaminants, 7 of them disinfection byproducts | Haloacetic acids (HAA9), 587 times |
Hardness comes from each utility's own annual report (Loudoun Water's source: Fairfax Water, 2025), and 7 grains per gallon is where USGS calls water hard. Contaminants come from the Environmental Working Group (EWG Tap Water Database), updated June 2026. EWG's health guidelines sit far below federal legal limits, and none of these utilities is over a federal legal limit in this data. We are not affiliated with EWG.
Want your own address? Pull the report for your ZIP
Choose your water heater and your whole-home system. The price updates as you go.
Send your order and pay at the job, or put $100 on a card to hold your install. It comes off your final price.
Our office confirms your water heater, your price and the day. Then our plumbers put it all in.
$100
By card, refundable for any reason until we install, and it comes off your final price. Or skip it and pay at the job.
$500
For the old unit we take out. It's already in every price on this page. There's no extra bundle discount, and we won't pretend there is.
0%
From about $81 a month at 0% APR for 60 months, the whole price financed, on approved credit. The order page shows the monthly figure for whatever you pick.
5.0 stars across 1,100+ reviews.
"Zabi came to test our water and get us an estimate on a water softener filtration system."
He was amazing. Very professional and very honest.Valerie U. · Google
"We recently hired SwiftPro in Fairfax County, VA to install a reverse osmosis water filtration system, install a new toilet, and replace our outside hose bibs."
They were super professional, courtesy, on time, and pleasant to work with. Plus they got the job done at a fair price. Thank you, Tyler, Moises, Oscar, and the entire SwiftPro team!!!David M. · Google
"Tyson from Swiftpro came out regarding our interest in an under sink water filtration installation."
We were very impressed with his knowledge and information and feel confident in Swiftpro.Carole F. · Google
"Outstanding and timely service."
Our water heater failed at 8pm on a friday night, by 10am the next morning, Harold was at our house, removed the broken heater, and installed the new one. Clean and as efficient as can be expected given the weekend timing.Conor D. · Google
"SwiftPro delivered and installed a 75 gallon AO Smith water heater."
Zabi was very professional in his communication, plumbing, testing, and cleanup. Good crew to move new heater to basement utility room and take out the old heater.Giri V., Herndon · Google
Don't see yours? We answer day or night.
Call (703) 997-9757With SwiftPro, a 50 gallon water heater and a whole-home water filter run $4,848 to $10,585 installed, or $81 to $176 a month at 0% APR for 60 months on approved credit, depending on the heater and the filter. The lowest is a 50 gallon electric tank with the Watts OneFlow+.
You get one order, one crew and one price, but there's no extra bundle discount, and we won't pretend there is. Each price is what we charge for that item alone, added up. The $500 off the water heater is already in it, for the old unit we take out.
The water heater, the whole-home system, the install by our own licensed plumbers, the permit, an expansion tank, a drain pan and hauling the old water heater away. A gas line, venting or electrical upgrade, if your home needs one, gets quoted before we start.
The prices in the table are A.O. Smith tanks with a 6 year warranty. The same tank with 10 years is $575 more on those three. If you plan to stay in the house, 10 years is the one we'd pick.
No. Send your order and we call to confirm the details and set a time. Want your install held? Reserve it for $100 by card: it's refundable for any reason until we install, and it comes off your final price.
Yes, on approved credit. From about $81 a month at 0% APR for 60 months, the whole price financed, on approved credit. The order page shows the monthly figure for whatever you pick.
Often, yes. Five of the six public water utilities here that print a hardness figure reach 7 grains per gallon or more, where water counts as hard, and the same utility can swing a lot through the year. Fairfax Water ran 3 to 10.8 grains per gallon in 2025. The City of Manassas is the lowest, at 2.7. Well water varies house to house, so test it at your tap.
Your water heater is fed by the main line, so a whole-home system where the water comes in treats what goes into the new tank too. Hard water leaves the crust inside a water heater, and a water softener takes that hardness out. It's also the one time a plumber is already in that part of your house working on those pipes.
It depends on what you're fixing. Scale on faucets, spots on glasses and a water heater full of sediment point to hardness, which a water softener fixes. A chlorine taste or smell points to carbon filtration. The dissolved contaminants on your utility's report, like chromium-6 and nitrate, take Reverse Osmosis (RO). If you're not sure, start with the $29 water test: a licensed plumber tests your water's hardness at your kitchen table, and it comes off a water treatment install if you go ahead.
Yes. It goes where the water comes into the house, not on the water heater, so it can go in any time. There's no bundle discount to lose by waiting. Doing both together is one order and one crew instead of two jobs.
A water softener needs salt added to its tank. Filter cartridges, and the filters in a Reverse Osmosis (RO) system, get changed on the schedule in the unit's spec sheet. A filter on a bypass loop keeps the water on in the house while its cartridge is changed, and our sticker on the housing has the number to call.
Start with the test at your tap. The ZIP report covers public water utilities, and a private well gets no routine testing unless the owner does it. Our plumbers also repair and replace well pumps and pressure tanks.
Homes across Fairfax County, Arlington County, Loudoun County, Prince William County, Fauquier County and Stafford County, with our own plumbers, under Virginia Class A contractor license #2705192276. Call (703) 997-9757. We answer day or night, and we will tell you honestly when we can get there.
Fairfax County, Arlington County, Loudoun County, Prince William County, Fauquier County and Stafford County, including:
Pick your two in about two minutes. We call to confirm.
