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*The Angi rating for Above Ground Pool Installation companies in Three Forks, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Above Ground Pool Installation needs.

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Last update on August 02, 2026

Find Above ground pool installation pros in Three Forks

Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,678
)
Above Ground Swimming Pool or Accessories - Repair or Service

Serving Three Forks, MT and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"The tech was very knowledgeable and went above and beyond to satisfy us. Our faucet was broken would not attach to the sink as the copper seal broke to the water lines."
Recommended by81%of homeowners
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Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)
Above Ground Swimming Pool or Accessories - Repair or Service

Serving Three Forks, MT and surrounding areas

In business since 1971

Credit card accepted

"Called AHS....who sent service request to AAA Flexible Pipe. Adam came out quickly and installed new pump just before HEAVY rains hit...Fast and efficient service from AHS and AAA FLEXIBLE PIPE CLEANING."
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Recommended by65%of homeowners
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Install Above Ground Pools questions, answered by experts

Infinity pools do require slightly more maintenance than other pools because you’ll need to constantly monitor the water level. If the water level is out of whack, it won’t correctly flow over the edge, which gives the pool its infinity look. 

That said, the rest of the maintenance is largely dependent on the type of material you choose. Concrete needs a little extra care to prevent algae growth, and you will eventually need to resurface it. Fiberglass and vinyl liners are algae-resistant but they’re not as durable.

It is a good idea to brush a pool before shocking. Brushing the sides and floor loosen up anything that is growing on the surface, such as algae. It is then easier for the pool shock to kill the contaminants because more of it will come in contact with the chemicals.

Rectangular pools are the most popular inground pool shape, due to their adaptability to different uses, from swimming laps to hosting parties. These pools can easily include other sought-after features, such as tanning ledges, waterfalls, sport nets, and more. Rectangular pools are also often easier to install and maintain, and prefabricated rectangular pools generally have a shorter installation time, so you can start enjoying your pool faster.

The best way to kill off an algae bloom in an aboveground pool is to shock it with a large dose of chlorine. Shock typically kills off algae in about one to three days, although it can take longer if the pool water is in poor condition. After the shock treatment, add algaecide to prevent algae from growing back, and test the water every few days with test strips to ensure the pool’s pH doesn’t get out of whack.

The average pool size in gallons is 15,360. This number is for a 16’ x 32’ pool with a four-foot depth. However, many pools have different depths at each end or irregular sizes, so you may need to use the formulas above to calculate exactly how many gallons of water you need.

The Three Forks, MT homeowners’ guide to above ground pool installation services

From average costs to expert advice, get all the answers you need to get your job done.

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