How Much Does an Inground Pool Cost in Northern Virginia? (2026)

The Short Answer

Most homeowners in Fairfax, Loudoun, Prince William, and Fauquier counties pay $80,000 to $185,000+ for a fully installed fiberglass pool, including the shell, excavation, plumbing, basic decking, and equipment. A smaller pool with a basic surround starts around $80,000, and a typical mid-range project — the pool plus a real patio and decking package — lands between $120,000 and $175,000.

Two recent Outdoor Solutions projects show that range in practice, not as an estimate. A fiberglass pool with a small walkway around it in Warrenton closed right around $100,000. A full outdoor-living build in Berryville — pool, pavilion, and waterfalls — closed at $185,000. If a quote you are holding comes in meaningfully under $80,000 for an inground fiberglass pool in this market, it is missing something: a code-compliant barrier, real decking, electrical, or another piece of the full installed scope.

Three things move that number more than anything else: pool size, how much concrete or paver decking you add around it, and what your yard needs before anyone can dig. A flat, cleared half-acre lot in Bristow costs less to build on than a sloped, wooded lot in Great Falls or Fairfax Station.

The number that matters most is not the shell price. It is the installed price, which bundles the shell with excavation, plumbing, electrical, backfill, and a basic equipment pad. Any quote that only prices the shell is not a real budget number.

Want the full four-county picture in one place? Our 2026 Northern Virginia Pool Cost & Permitting Guide compares fees, timelines, and requirements across Fairfax, Loudoun, Prince William, and Fauquier counties, with every figure sourced.

Cost by Project Scope: Pool Only vs. Pool + Outdoor Living

Pool size still matters, but scope moves the number more than shell size does. The same fiberglass shell can anchor an $80,000 project or a $185,000 project depending on what gets built around it. Here is how Outdoor Solutions projects typically break down by scope in Northern Virginia.

Project Scope	What's Included	Installed Cost Range
Pool + basic surround	Fiberglass shell, excavation, plumbing, equipment pad, a walkway, and a code-compliant barrier	From about $80,000
Pool + full patio/decking package	Everything above, plus a full concrete or paver patio, extended decking, and typically a fencing upgrade	$120,000 – $175,000
Pool + full outdoor living	Everything above, plus a pavilion, water features, and often an outdoor kitchen	$175,000+

A recent Warrenton project — a fiberglass pool with a small walkway and a code barrier — landed in the first tier, closing right around $100,000. A recent Berryville project — pool, pavilion, waterfalls, and full outdoor living — landed in the third tier, closing at $185,000.

These figures assume a fiberglass shell on a reasonably accessible lot. A steep grade, poor soil, difficult crane access, or a large land-disturbance footprint can add cost regardless of which tier you are building toward. The Outdoor Solutions crew walks every lot across all four counties before quoting for exactly this reason.

For a full breakdown of how fiberglass stacks up against gunite and vinyl on price, see fiberglass vs. gunite vs. vinyl.

Line-Item Add-Ons: What Actually Gets Added to the Base Price

The base installed price covers the pool itself. Almost every project adds at least a few of the items below. Budgeting for these upfront avoids the mid-project sticker shock that catches a lot of first-time pool buyers off guard.

Add-On	Typical Cost
Pool heater	$3,000 – $5,000
Automatic safety cover	Around $20,000
Pool fencing (per 300 linear ft, code-compliant 48" barrier)	~$8,000
Electrical (sub-panel, bonding, equipment wiring)	$3,000 – $5,000
Water fill	Up to $2,000
Concrete patio / decking (1,200 sq ft)	$12,500+
Paver patio / decking (1,200 sq ft)	$13,000+
Retaining walls (sloped lots)	$10,000 – $35,000
LED lighting	$1,000 – $5,000

The automatic safety cover is the sleeper in this table: it can replace the fence entirely. Virginia's swimming pool code (the 2021 ISPSC) recognizes a powered safety cover complying with ASTM F1346 as a barrier alternative, so homeowners who would rather keep the yard open and unfenced can meet code with the cover instead — and it holds heat, keeps debris out, and locks the water away when nobody's swimming. Outdoor Solutions installs both. An HOA or insurance carrier can still require a fence, so the barrier choice gets confirmed during design and permitting.

Retaining walls deserve special attention here. A lot of Fairfax County and Fauquier County lots sit on a grade, and if your backyard slopes more than a few feet from the house to the planned pool location, expect a wall in the budget. This is often the single biggest surprise line item on a NoVA pool quote.

Because Outdoor Solutions builds pools and hardscape under one contract, decking, retaining walls, and landscaping get priced and scheduled alongside the pool instead of handed off to a second contractor. That usually saves both money and weeks of coordination compared to hiring a pool builder and a separate hardscape crew.

10-Year Cost Comparison: Fiberglass vs. Gunite vs. Vinyl

Upfront price is only part of the picture. Gunite and vinyl pools cost less to build in some cases, but they cost more to keep running. Here is the real 10-year picture.

	Fiberglass	Gunite / Concrete	Vinyl Liner
Installed cost	$80,000 – $185,000+	$65,000 – $120,000+	$40,000 – $75,000+
Build timeline	2 – 3 weeks on site	3 – 6 months	4 – 8 weeks
10-year maintenance	$3,000 – $5,000	$30,000+ (replaster every 8–12 yrs, $30,000 and up per redo)	$6,000 – $10,000+ (liner replacement every 7–10 yrs)
Surface	Smooth gel coat, non-porous	Porous, needs regular acid wash	Liner can wrinkle, fade, tear

A note on the numbers above: the gunite and vinyl ranges are national installed figures, not Northern Virginia quotes. NoVA pricing runs above national baselines for every pool type, not just fiberglass, so treat this table as a shape-of-cost comparison rather than a local gunite or vinyl estimate.

Fiberglass usually costs more upfront than vinyl and is comparable to or less than gunite, but it wins the 10-year total-cost comparison against both because there is no replastering and no liner to replace. Gunite's biggest hidden cost is the replaster cycle: every 8 to 12 years, a gunite pool needs $30,000 or more of resurfacing, depending on pool size, just to stay watertight and stain-free. Fiberglass shells do not have that recurring bill.

Speed to swim matters too. A gunite pool takes 3 to 6 months from permit to first swim because it is poured, cured, and plastered on site. A fiberglass pool installation is manufactured off site and completed in about 2 to 3 weeks once the shell arrives, which matters if you are trying to hit a specific summer.

See the full breakdown, including winter durability and why fiberglass holds up better through Virginia's freeze-thaw cycles, on our fiberglass vs. gunite vs. vinyl comparison page.

County Permit Fees and Timelines

Every pool over 150 square feet, 5,000 gallons, or 24 inches deep needs a building permit in Fairfax, Loudoun, Prince William, and Fauquier counties. Plan on $400 to $1,200 in permit costs depending on the county, once the building permit, trade permits, and county surcharges are all counted — and the review timeline and paperwork requirements vary by county enough to affect a fiberglass pool installation's schedule as much as its budget. One routing note: permits go through each county's building department, but if the property runs on a septic system, the county health department also has to approve the project.

County	What's Required	Typical Timeline
Fairfax	2 plats + 2 pool plan sets through Land Development Services. Disturbing more than 2,500 sq ft of land triggers a grading or conservation plan.	The slowest of the four counties — plan on 1 month or more, longer if a grading plan is required
Loudoun	Plat showing pool location, setbacks, and equipment location; Statement of Owner/Lessee; signed Pool Fence Acknowledgement Form. Filed online through the county's LandMARC portal or in person in Leesburg. Disturbing more than 5,000 sq ft triggers a separate grading permit.	No turnaround time published; inspections must be scheduled at least one business day ahead
Prince William	ePortal submission, house location survey plat, setback compliance (roughly 10 ft rear / 15 ft side, varies on larger lots)	Varies by site; City of Manassas adds an excavation bond and its own review
Fauquier	Plat with setbacks, plans or manufacturer's engineered install guide, signed Pool Fence Affidavit	Plan on 1 month or more, on par with Fairfax

A fiberglass pool has a real paperwork advantage in Fauquier County specifically: gunite pool plans there must be sealed by a registered design professional, while a fiberglass pool installation can use the manufacturer's engineered install guide instead. That is fewer steps and less cost before you ever break ground.

Loudoun's permit process runs through Building and Development rather than the Health Department — though on any lot with a septic system, in Loudoun or any of the four counties, the health department also has to approve the project. The county's fee schedule lists $260 for a residential pool inside unincorporated Loudoun, covering both building and zoning review, or $95 inside an incorporated town like Leesburg or Purcellville, covering building review only, with town fees billed separately. Electrical and gas trade permits are billed on top of that where equipment requires them.

All four counties also require a code-compliant pool barrier under Virginia's statewide swimming pool and spa code. If roughly two-thirds of Fairfax County homes sitting inside an HOA describes your situation, budget extra time for architectural review committee (ARC) approval before the county permit even gets submitted — HOAs commonly ask for the same plat and plans the county wants, just routed through the community first.

Full permit walkthroughs, including document checklists, are here: Fairfax County pool permits, Loudoun County pool permits, Prince William County pool permits, and Fauquier County pool permits.

How to Budget for a Pool Project

Start with the installed base price for the fiberglass pool size you want, then add every line item that applies to your yard: decking, fencing, a heater if you want to extend your swim season, and a retaining wall if your lot has any real slope. A realistic Northern Virginia budget worksheet looks like this.

• Base pool (installed, with a basic surround): $80,000 – $125,000
• Decking upgrade (1,200 sq ft): $12,500 – $13,000+
• Fencing (300 linear ft): ~$8,000
• Heater: $3,000 – $5,000
• Electrical: $3,000 – $5,000
• Retaining wall, if needed: $10,000 – $35,000
• Permit fees: $400 – $1,200

Add those up and a mid-size pool with a full decking package and fencing on a flat lot lands in the $120,000 to $175,000 mid-range where most full-scope projects close, while a smaller pool with a modest surround can come in under $100,000. A larger build with a retaining wall, automatic cover, and pavilion-level outdoor living — the Berryville scope — can push toward $185,000 or more.

Most homeowners finance some or all of a pool project, with terms typically running 7 to 20 years. See pool financing options for how monthly payments compare across loan terms, and talk to us about what a realistic monthly number looks like for the pool you have in mind.

Why a Winter Contract Saves Money

Northern Virginia's pool season runs roughly April through September. Everyone wants a pool by Memorial Day, which means March through May is the most competitive, most expensive time to book a builder — crews are juggling spring openings, new installs, and winter-damage repairs all at once.

Contracts signed in January or February get ahead of that rush. Permits move through the counties faster in the off-season simply because fewer applications are stacked up. Excavation and installation crews have open calendar slots instead of a spring backlog. And because fiberglass installs in 2 to 3 weeks once the shell arrives, a January contract has a realistic shot at a full summer of swimming — something a gunite pool, with its 3-to-6-month build time, usually cannot promise on the same timeline.

If you are planning for summer 2027, the practical window to sign is January or February 2027, with permits submitted shortly after and excavation in early spring. Researching now and locking in a contract before the spring rush is the single biggest lever you have over both price and schedule.

Ready to see what a project on your lot would cost? Contact NOVA Pool Builders or start with your county page: Fairfax County, Loudoun County, Prince William County, or Fauquier County.

Frequently Asked Questions

What is the average cost of an inground pool in Northern Virginia?

A fully installed fiberglass pool in Fairfax, Loudoun, Prince William, or Fauquier County typically costs $80,000 to $185,000 or more, depending on project scope, decking, and site conditions. A smaller pool with a basic surround starts around $80,000, and most mid-range projects land between $120,000 and $175,000. Two recent Outdoor Solutions closes show the range: a pool with a basic walkway in Warrenton closed around $100,000, and a full outdoor-living build in Berryville — pool, pavilion, and waterfalls — closed at $185,000.

Is fiberglass cheaper than gunite in the long run?

Yes, over a 10-year window. Gunite pools need replastering every 8 to 12 years at $30,000 and up per redo depending on pool size, plus ongoing acid washing to manage the porous surface. Fiberglass has no replaster cycle and typically runs $3,000 to $5,000 in total upkeep over the same 10 years.

How much does it cost to add a patio or deck around the pool?

A 1,200 square foot concrete patio runs about $12,500 and up; the same footprint in pavers runs about $13,000 and up. Most homeowners decide between concrete and pavers based on style and budget rather than a large price gap, since the two options land close together. See pool and patio bundled pricing for how this gets combined with the pool build.

Do I need a retaining wall for my pool?

Only if your lot has meaningful grade change between the house and the planned pool location, which is common in parts of Fairfax County and Fauquier County. Retaining walls run $10,000 to $35,000 depending on height and length, and it is one of the most frequently underestimated line items in a NoVA pool budget. A site walk before quoting is the only reliable way to know if you need one.

Do I need a fence around my pool in Northern Virginia?

You need a code-compliant barrier, but it doesn't have to be a fence. All four counties follow the 2021 ISPSC, which requires a 48-inch barrier — and recognizes a powered automatic safety cover complying with ASTM F1346 as an alternative for homeowners who would rather keep the yard fence-free. Outdoor Solutions installs both fencing and automatic safety covers. Two caveats: manual covers don't qualify, and an HOA or insurance carrier can still require a fence even where the county code doesn't.

How much are pool permits in Fairfax, Loudoun, Prince William, and Fauquier counties?

Plan on $400 to $1,200 per county once the building permit, electrical and plumbing trade permits, and county surcharges are all counted — the base building-permit line item alone (for example, Loudoun's $260 unincorporated / $95 in-town fee) understates the real bill. The bigger cost driver is timeline: Fairfax and Fauquier reviews run a month or more in practice, Fairfax properties disturbing more than 2,500 square feet of land may need a grading or conservation plan that adds even more, and Loudoun requires its own grading permit once disturbance passes 5,000 square feet. See what Fairfax County requires, Loudoun County's permit process, the Prince William permit process, and Fauquier's permit checklist.

Can I finance a pool in Virginia?

Yes. Most homeowners finance some or all of their pool project, with loan terms commonly ranging from 7 to 20 years. Monthly payments vary widely based on loan amount and term length. Visit pool financing for details on how that breaks down.

When should I sign a contract to have a pool ready for next summer?

January or February is the practical deadline for a same-year summer pool. Signing that early gets you ahead of the spring permitting and scheduling rush, and fiberglass's 2-to-3-week install window gives you the best odds of swimming by early summer. Waiting until April or May to sign usually pushes completion into late summer or the following year.

Does an HOA affect my pool cost or timeline?

It can add time, not usually direct cost. Roughly two-thirds of Fairfax County homes sit inside an HOA, and most require architectural review committee (ARC) approval before you can even submit for a county permit. Budget extra weeks for HOA review on top of the county's own timeline, and have your plat and plans ready early since HOAs typically ask for the same documents the county requires.