Maryland · Vinyl Liner Pool Builders & Installers · Updated 2026
Compare 4 vinyl liner pool builders serving Gaithersburg for vinyl liner pool construction. Ratings, review counts, contact details and 2026 planning prices are below.
Ordered by customer rating and review count across the Gaithersburg area. Listings include the available rating, contact details and location; confirm current credentials and scope directly.
Planning a new pool as well? The Gaithersburg pool builders directory ranks all 189 builders in the area.
A mid-size vinyl liner pool (about 16×32) installed in Gaithersburg typically runs $51,500–$80,500 with standard equipment and a basic deck. The liner itself is replaced every eight to twelve years at $4,600–$8,000:
| Job | Typical Gaithersburg price |
|---|---|
| Small vinyl liner pool (about 12×24), installed | $40,500–$57,500 |
| Mid-size pool (about 16×32), installed | $51,500–$80,500 |
| Large pool (about 20×40), installed | $75,000–$109,000+ |
| Polymer wall upgrade over steel | $2,300–$5,800 |
| Vinyl-covered steps, benches or sun ledge | $2,300–$6,900 |
| Decking and coping | $6,000–$17,500 |
| Equipment upgrades (heater, salt, automation) | $3,500–$10,500 |
| Safety cover | $2,300–$4,600 |
| Permits and inspections | $500–$2,900 |
| Liner replacement, later (every 8–12 years) | $4,600–$8,000 |
Maryland pricing is above the national baseline used for these estimates, mainly on labor and permitting. Rectangles cost less than freeforms, steel walls less than polymer, and a thicker liner (27 or 28 mil) adds a little up front and years to the first replacement.
The second liner is part of the real cost of a vinyl pool — ask every bidder what a replacement will run and how long the first one should last.
Gaithersburg market
4.6 average customer rating · 290 reviews · 4 companies
See All on the Map →4 vinyl liner pool builders serving Gaithersburg. The ranked companies average 4.6 stars across 290 customer reviews. PoolPad orders the list with a weighted score that combines customer rating and review count, so a long track record counts for more than a handful of scores.
Piedmont clay west of the Bay needs good drainage and properly compacted backfill; the Eastern Shore has sand, high water tables, and hydrostatic planning. Sloped Montgomery and Baltimore County lots often add retaining walls, while mature-tree suburbs make access and root management part of the bid. Vinyl liner pools dominate freezing climates because the wall system tolerates frost heave better than a rigid finish and the liner is forgiving of winterization.
For statewide rankings, city counts and Maryland prices, see the Maryland vinyl liner pool builders directory, or check the nearby cities below.
Ask about the wall system, floor material and liner gauge, confirm the liner warranty in writing, and get a price for the first liner replacement now so you know the long-term cost. Compare at least three itemized bids for the same size and shape. Maryland licenses home improvement work through MHIC — verify the license number and insurance before signing. County permitting (and it varies meaningfully county to county) covers the pool, electrical, and residential-code barrier requirements; waterfront lots can add critical-area review. Builders who work your county weekly will quote realistic timelines.
A mid-size vinyl liner pool installed in Gaithersburg, MD typically runs $51,500–$80,500; small pools run $40,500–$57,500 and large pools $75,000–$109,000+. Decking adds $6,000–$17,500 and a safety cover $2,300–$4,600. Budget $4,600–$8,000 for a liner replacement every eight to twelve years. Maryland pricing is above the national baseline used for these estimates, mainly on labor and permitting.
Eight to twelve years is typical, longer with a thicker liner, balanced water and a cover. Fading, brittleness, wrinkles and leaks at seams or fittings are the signs it is time. Replacement is a one-to-three-day job once the new liner arrives, and the pool is otherwise unchanged.
Usually four to eight weeks after permits: a few days to dig and set the walls, a week or two for plumbing, the floor and the deck, then the liner is installed and the pool filled in a day. Custom liners are made to measure and can take two to four weeks to arrive. Liners install best in warm weather, so spring and summer book first.
The smooth surface uses fewer chemicals than plaster and never needs resurfacing, but the liner itself is the recurring cost — roughly the price of a resurfacing spread over a similar interval. Keep the water balanced, avoid letting the level drop, and use a cover to extend liner life.
The outdoor season in Gaithersburg runs mid-May through September — about 4 months unheated. A full professional winterization each fall protects plumbing and equipment through the freeze, and spring openings cluster into the same few weeks. Mid-May through September, humid through the middle and stretched by heaters on both ends. Winters freeze properly, so a full close remains the standard even in milder Bay-side microclimates.
Rivas & Sons Construction LLC has the highest customer rating on this Gaithersburg list at 5 stars across 13 reviews. Browning Pools & Spas has the largest review count (172 reviews at 4.6 stars). PoolPad orders the list with a weighted score that combines customer rating and review count, so a long track record counts for more than a handful of scores.
Both perform well. Galvanized steel panels are the lower-cost standard and very strong; polymer (plastic) panels cost more but cannot rust and suit salt systems, coastal air and wet soils. Either way, ask how the panels are braced and how the deck is tied to the walls so the coping does not shift.
Yes — walls are built on site, so the depth profile is yours to choose, including diving depths. Spas are usually added as a separate fiberglass or gunite unit beside the pool rather than inside the liner structure. Tanning ledges and benches are formed and then covered with the liner.
Check vinyl liner pool builders in cities near Gaithersburg, or open the Maryland directory for every listed market in the state.
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