Maryland · Inground Pool Builders & Contractors · Updated 2026
Compare 34 inground pool builders in the Gaithersburg area for new inground pool construction. Ratings, review counts, contact details and 2026 planning prices by pool type are below. 20 are listed as specialists for this work; the rest are pool builders that routinely handle it. This page shows the top 20.
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.
Installed prices in Gaithersburg run from $51,500–$80,500 for a mid-size vinyl liner pool to $86,500–$138,000 for a comparable gunite pool, with fiberglass in between at $66,500–$97,500. Decking, fencing and permits stack on top:
| Job | Typical Gaithersburg price |
|---|---|
| Vinyl liner pool, installed (about 16×32) | $51,500–$80,500 |
| Fiberglass pool, installed (about 14×30) | $66,500–$97,500 |
| Gunite / concrete pool, installed (about 16×32) | $86,500–$138,000 |
| Attached spa or spillover | $14,000–$40,500 |
| Decking and coping around the pool | $7,000–$23,000 |
| Safety fence and gates | $2,300–$6,900 |
| Permits, engineering, utility locates | $600–$4,000 |
| Typical all-in project with deck and fence | $80,500–$172,500+ |
| Ongoing upkeep (chemicals, power, service) | $1,300–$3,200 / year |
Maryland pricing is above the national baseline used for these estimates, mainly on labor and permitting. Soil, access for excavation equipment, slope, utility relocation and the finish and feature package move a quote more than the pool's footprint does — compare itemized bids for the same size and type.
Fiberglass, gunite and vinyl bids are not comparable to each other — settle the type (or ask each builder to bid two), then compare like for like.
Gaithersburg market
4.6 average customer rating · 1250 reviews · 34 companies · 20 specialists
See All on the Map →34 inground pool builders in the Gaithersburg area. 20 are listed as specialists for this work; the rest are pool builders that routinely handle it. The ranked companies average 4.6 stars across 1,250 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. Gunite with spas and paver decks leads the DC-side counties; vinyl liner holds strong value share elsewhere. Salt systems, heat pumps, and automatic covers are all mainstream, and compact luxury builds are rising on smaller infill lots.
For statewide rankings, city counts and Maryland prices, see the Maryland inground pool builders directory, or check the nearby cities below.
Get at least three itemized bids for the same type and size, visit finished pools that are a few years old, and read the warranty for the shell, the finish and the equipment separately. Ask how the company handles rock, groundwater and access problems once digging starts. 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.
Installed in Gaithersburg, MD, a mid-size vinyl liner pool typically runs $51,500–$80,500, a fiberglass pool $66,500–$97,500 and a gunite pool $86,500–$138,000. With decking, a fence and permits most complete projects land at $80,500–$172,500+. Maryland pricing is above the national baseline used for these estimates, mainly on labor and permitting; the size, finish, features and site conditions move the number most.
There is no single best type. Fiberglass installs fastest and is the easiest to maintain but comes in fixed shapes; gunite can be any shape with any feature but costs more to build and to resurface later; vinyl liner has the lowest upfront price but needs a new liner every eight to twelve years. Match the type to your budget, your yard, how long you plan to stay and how much maintenance you want.
A fiberglass pool is often swimmable two to six weeks after excavation; a vinyl liner pool four to eight weeks; a gunite pool eight to sixteen weeks because the shell has to cure before tile, coping and the finish go on. Permitting adds two to eight weeks up front, and decking and landscaping follow the pool. Most crews dig in the off-season so the pool is ready when the season opens.
Most residential pools are 3 to 6 feet with a deep end of 6 to 8 feet; diving depths of 8 feet or more need a longer pool and a larger excavation. Fiberglass shells are limited to the manufacturer's molds (commonly 6 to 8 feet), while gunite and vinyl liner pools can be built to almost any profile, including sport pools that are shallow at both ends.
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.
NOVA Landscape Construction has the highest customer rating on this Gaithersburg list at 5 stars across 79 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.
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.
Budget $1,300–$3,200 / year for chemicals, electricity and routine service, more for a heated pool or a weekly cleaning route. Fiberglass and vinyl surfaces use fewer chemicals than plaster; a variable-speed pump and an automatic cover cut running costs the most.
Check inground pool builders in cities near Gaithersburg, or open the Maryland directory for every listed market in the state.
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