Montana · Gunite & Concrete Pool Builders · Updated 2026
2 gunite pool builders across Montana — custom concrete, shotcrete and gunite construction — ordered by customer rating and review count, with 2026 prices for a standard pool, a spa and the finish upgrades.
The order uses a weighted mix of customer rating and review count; open a city below for the full local list. Confirm current credentials, availability and scope directly.
There is not a separate city list for Montana yet. Use the statewide results above, or browse the Montana pool service directory.
A mid-size gunite pool (about 16×32) with a standard plaster finish in Montana typically runs $82,500–$132,000. Spas, premium finishes, features and decking are where custom pools climb from there:
| Job | Typical Montana price |
|---|---|
| Small gunite pool (about 12×24), plaster finish | $60,500–$88,000 |
| Mid-size gunite pool (about 16×32) | $82,500–$132,000 |
| Large or elaborate custom pool | $132,000–$275,000+ |
| Attached gunite spa with spillover | $16,500–$38,500 |
| Pebble or quartz finish upgrade | $5,500–$13,000 |
| Tanning ledge or beach entry | $3,500–$9,000 |
| Water features, lighting, fire bowls | $2,000–$16,500 |
| Decking and coping | $9,000–$27,500 |
| Rock or hard-dig excavation allowance | $3,500–$16,500 |
| Permits, engineering, soils report | $900–$4,400 |
Montana 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.
PoolPad tracks 2 gunite pool builders across Montana. 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.
Rocky ground and river cobble make excavation the wildcard — get rock language in writing — and frost-depth plumbing plus robust winterization design are standard. Bozeman-area builds often pair pools with significant landscape and terrace work. Fiberglass and vinyl fit the install window; heated pools with automatic covers and mountain-facing terraces define the look. Integrated hot tubs are practically standard.
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. Montana registers construction contractors at the state level — verify registration and insurance. Pool permits and residential-code barrier requirements run through your city or county building office; resort-town design review boards can add a step in places like Big Sky and Whitefish.
A mid-size gunite pool with a plaster finish in Montana, MT typically runs $82,500–$132,000; small pools run $60,500–$88,000 and large custom designs $132,000–$275,000+. An attached spa adds $16,500–$38,500, a pebble or quartz finish $5,500–$13,000, and decking $9,000–$27,500. Montana 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 Montana 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. The unheated season runs mid-June through early September, with cool nights even in July. A heater materially extends use, and winters are long and hard-freezing statewide.
Erickson's Pools & Spas has the highest customer rating on this Montana list at 5 stars across 8 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.
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.
Montana registers construction contractors at the state level — verify registration and insurance. Pool permits and residential-code barrier requirements run through your city or county building office; resort-town design review boards can add a step in places like Big Sky and Whitefish.
If your property is near a state line, check the neighboring directories too.
Claim your free PoolPad listing, check gunite among the pool types you build, and show Montana homeowners planning a custom pool what you construct.
