New Hampshire · Gunite & Concrete Pool Builders · Updated 2026
Compare 14 gunite pool builders serving Nashua for concrete pool construction. Ratings, review counts, contact details and 2026 planning prices for shells, spas and finishes are below.
Ordered by customer rating and review count across the Nashua area. Listings include the available rating, contact details and location; confirm current credentials and scope directly.
Planning a new pool as well? The Nashua pool builders directory ranks all 24 builders in the area.
A mid-size gunite pool (about 16×32) with a standard plaster finish in Nashua typically runs $86,500–$138,000. Spas, premium finishes, features and decking are where custom pools climb from there:
| Job | Typical Nashua price |
|---|---|
| Small gunite pool (about 12×24), plaster finish | $63,000–$92,000 |
| Mid-size gunite pool (about 16×32) | $86,500–$138,000 |
| Large or elaborate custom pool | $138,000–$287,500+ |
| Attached gunite spa with spillover | $17,500–$40,500 |
| Pebble or quartz finish upgrade | $6,000–$14,000 |
| Tanning ledge or beach entry | $3,500–$9,000 |
| Water features, lighting, fire bowls | $2,500–$17,500 |
| Decking and coping | $9,000–$28,500 |
| Rock or hard-dig excavation allowance | $3,500–$17,500 |
| Permits, engineering, soils report | $900–$4,600 |
New Hampshire pricing is above the national baseline used for these estimates, mainly on labor and permitting. Gunite bids vary more than any other pool type because every element is custom — compare the shell thickness, steel schedule, finish, feature and equipment lines, not just the bottom number.
Spas, ledges, benches, lighting niches and water features are cheapest when they are shot into the shell — adding them later means cutting concrete.
Nashua market
4.3 average customer rating · 464 reviews · 14 companies
See All on the Map →14 gunite pool builders serving Nashua. The ranked companies average 4.3 stars across 464 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.
Granite State means it: ledge and boulders make excavation the big unknown, so a written rock clause protects you. Frost-depth plumbing, freeze-thaw decking, and generous slope drainage are standard specs, and wooded lots add tree work to plenty of budgets. Vinyl liner dominates, fiberglass is growing fast for quick installs, and heated pools with automatic covers make the short season worth it. Simple rectangles with big deck space fit the lake-house entertaining style.
For statewide rankings, city counts and New Hampshire prices, see the New Hampshire gunite pool builders directory, or check the nearby cities below.
Ask for the shell engineering and the gunite crew's track record, read the structural, finish and equipment warranties separately, and compare at least three itemized bids for the same design. New Hampshire has no general statewide contractor license, so vetting is on you — insurance certificates, references, and recent local addresses matter more here. Pool permits and residential-code barrier requirements (fencing, self-latching gates) run through your town's building department.
A mid-size gunite pool with a plaster finish in Nashua, NH typically runs $86,500–$138,000; small pools run $63,000–$92,000 and large custom designs $138,000–$287,500+. An attached spa adds $17,500–$40,500, a pebble or quartz finish $6,000–$14,000, and decking $9,000–$28,500. New Hampshire pricing is above the national baseline used for these estimates, mainly on labor and permitting.
Both are concrete sprayed over a steel cage. Gunite is a dry mix with water added at the nozzle; shotcrete is wet-mixed concrete pumped through the hose. Each produces a strong shell when applied by a good crew — the nozzleman's skill, the mix design and proper curing matter more than which method is used. Ask which your builder uses and what thickness is specified.
Plan on eight to sixteen weeks from excavation to swimming: dig and steel in the first week or two, the shell shot and cured for about four weeks, then tile, coping, plumbing, equipment, decking and finally the plaster and fill. Permits add two to eight weeks before the dig. Freezing weather pauses shell and plaster work, so most builds are scheduled for the warm months.
The concrete shell can last 50 years or more. The plaster finish lasts about 10 to 15 years (quartz and pebble 15 to 20 or more), waterline tile and coping 15 to 25 years, and equipment 8 to 15 years. Balanced water, especially calcium hardness and pH, is what protects the finish.
The outdoor season in Nashua runs mid-June through early September — about 3 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-June through early September unheated; heaters realistically buy a month more. Winters are long and hard-freezing, so full winterization with a snow-rated cover is the standard of care.
Mountainscapes has the highest customer rating on this Nashua list at 5 stars across 10 reviews. SSG Pools has the largest review count (208 reviews at 4.4 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.
Usually, for the same size: the shell is built on site, the finish is a separate trade, and custom features add up. The gap narrows for large pools and designs with spas and ledges, where fiberglass models are limited. Over 20 years a gunite pool also needs at least one resurfacing, which is part of its true cost.
New Hampshire has no general statewide contractor license, so vetting is on you — insurance certificates, references, and recent local addresses matter more here. Pool permits and residential-code barrier requirements (fencing, self-latching gates) run through your town's building department.
Check gunite pool builders in cities near Nashua, or open the New Hampshire directory for every listed market in the state.
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