Pool Cost Estimator — Montana

How Much Does a Pool Cost in Montana in 2026?

In Montana, a gunite pool averages $77,000, fiberglass averages $59,000, and vinyl liner pools average $48,000 — before features, decking, and site conditions. Use the free calculator below to get a personalized estimate.

Most Durable
$77,000
Gunite / Shotcrete
avg. 500 sq ft pool
Fastest Install
$59,000
Fiberglass
avg. 500 sq ft pool
Most Affordable
$48,000
Vinyl Liner
avg. 500 sq ft pool

Pool Costs in Montana: What You Need to Know

Montana has a small, short-season pool market. Population growth in Bozeman and Missoula has pushed demand above local builder capacity, and winterization and freight costs are meaningful.

Pool Permits and Building Code in Montana

Montana pool permits are issued by cities and counties under the Montana Public Swimming Pools Act plus locally adopted IRC. Gallatin County (Bozeman), Missoula County, Flathead County (Kalispell, Whitefish), and Yellowstone County (Billings) are the primary jurisdictions. Barrier rules follow ICC. Permit fees typically run $1,200–$2,000. Mountain communities and resort towns (Big Sky, Whitefish) add design-review overlays that extend timelines.

Pool Season and Climate in Montana

Montana pool season is early June through early September — about 3 months uncovered, 4–4.5 with cover and heater. Winterization is aggressive: frost lines reach 48–60 inches in most of the state, and builders use insulated equipment buildings and deep pipe burial. Wind is a meaningful construction factor — Montana winds regularly exceed 50 mph and affect cover design and equipment enclosure siting.

Soil and Site Conditions in Montana

Montana soils vary enormously. The Gallatin and Bitterroot valleys have glacial gravels with cobbles — excavation is generally workable but can hit larger rock. Flathead Valley has lake-sediment silts and clays. Mountain communities have decomposed granite and occasional hard rock. Eastern Montana has gumbo clay soils that swell significantly.

Metro Labor and Where Montana Pool Costs Spike

Bozeman/Big Sky is the state's largest and most expensive pool market — second-home and high-income growth has pushed custom-pool prices to the highest in the Rockies outside Colorado resorts. Whitefish and Flathead Valley are the next-largest submarket. Missoula and Billings are moderately priced. Rural Montana sees minimal residential pool building.

Pool Builders Operating in Montana

Montana pool builders include Big Sky Pools (Bozeman), Rocky Mountain Pools (Montana), and Aqua Tech Montana. Premier Pools & Spas has expanded into the state. Given the small builder roster, waitlists of 8–14 months are common in Bozeman and Whitefish during peak demand.

What Affects Pool Cost in Montana?

🔧
Labor Rates
Montana contractors price labor at roughly 100% of the national average. Pricing is close to the national median.
📋
Permits & Inspections
Permit costs in Montana start around $1,500. Inspections are typically required at excavation, steel/shell, and final completion stages.
🏔️
Soil & Site
Soil type is the #1 hidden cost driver. Rocky or high-water-table conditions can add $10,000–$25,000 to any Montana pool build. Always get a site evaluation first.
❄️
Winter Closedown
Montana winters require annual pool closing and opening — typically $300–$600/year combined. Budget for a quality pool cover.

Pool Costs by City in Montana

Costs vary within Montana based on metro vs. rural labor markets. Enter your ZIP code in the calculator below for the most accurate estimate.

Billings
Gunite from $80,000
Missoula
Gunite from $77,000
Great Falls
Gunite from $77,000
Bozeman
Gunite from $77,000
↓ Get Your Free Montana Pool Cost Estimate ↓
Pool Cost Estimator · 2026

How much does a pool really cost?

An honest estimate in under two minutes — priced against 2026 labor rates in your state and metro.

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Your state and zip code determine labor costs, permit fees, and frost-line requirements.
Montana▼
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A family playing in a modern backyard swimming pool at golden hour
An honest estimate now. A real pool, later.

Frequently Asked Questions — Pool Costs in Montana

How much does an inground pool cost in Montana?
In Montana, a gunite (concrete) pool averages $77,000, fiberglass pools average $59,000, and vinyl liner pools average $48,000 for a standard-size pool. These are base estimates — your final cost depends on size, soil conditions, features like spas or water features, and decking.
What is the cheapest inground pool in Montana?
Vinyl liner pools are the most affordable option in Montana, starting around $48,000. The liner will need replacement every 7–10 years at a cost of $3,500–$6,000. Fiberglass pools offer a middle ground — faster to install and lower long-term maintenance than vinyl.
How much do pool permits cost in Montana?
Building permits in Montana typically run $1,500–$2,700 depending on your county, pool type, and local requirements. Most municipalities also require a fence or barrier around the pool.
How long does it take to build a pool in Montana?
Gunite pools in Montana typically take 8–14 weeks from permit approval to completion. Fiberglass pools can be installed in 3–6 weeks. Vinyl liner pools fall in between at 4–8 weeks. Delays can occur due to weather, permit processing times, or contractor availability — especially during peak season (spring and summer).
Do I need to winterize my pool in Montana?
Yes — Montana winters require proper pool winterization to prevent freeze damage to pipes and equipment. Professional closing and opening typically costs $300–$600 combined. Plan for this as an annual operating cost.

Pool Buyer's Guides

→ Fiberglass vs Gunite vs Vinyl — Which Pool Type is Right for You?→ Complete Inground Pool Cost Guide 2026→ Pool Cost by Size: Small, Medium & Large Pools→ How to Finance a Pool — Loans, HELOCs & More→ Does a Pool Add Home Value? ROI Breakdown

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