How long can water sit in a pool without chlorine?

• <div><p>You should add chlorine within 48 hours of <a href="https://www.angi.com/articles/cost-fill-pool-water.htm">filling your pool with water</a>. In just 24 hours, bacteria and algae will begin to grow and contaminate your water. After that point, you’ll need to shock the water with high levels of chlorine, and you’ll likely need to do additional vacuuming to get the pool clean. It’s important to check your chlorine levels two to three times a week and add more chlorine as needed to maintain a healthy level.</p></div>

Top-rated above ground pool installation pros.

Best above ground pool installation pros near Ennis, MT

Q: What should you not do when building a pool?

• <div><p>Most importantly, you should never cut corners when building a pool. Whether it&rsquo;s an in-ground or aboveground, poorly constructed pools are dangerous to both the swimmers and your property. Leaks can even lead to home foundation damage. While you can DIY smaller elements of pool installation, always hire a contractor to oversee the process. </p></div>

Q: How quickly will a solar cover heat a pool?

• <div><p>A solar cover can heat your pool anywhere from 5 to 15 degrees Fahrenheit over the course of 6 to 12 hours, depending on how much full sun your pool gets and how big it is. When used in conjunction with a solar pool heater, your pool will heat up even faster, all while using less energy than a traditional pool heater. </p></div>

Q: Are pool leaks covered by homeowner’s insurance?

• <div><p>Whether your homeowners insurance covers a pool leak depends on your specific policy, so it's essential to check your policy documents before taking on any repairs. Typically, leaks caused by a covered event, such as a fallen tree branch or a fire, may be covered. However, leaks resulting from general wear and tear or poor maintenance are usually not. It is also a good practice to review your homeowners insurance policy before installing a pool to fully understand your personal liability and coverage.</p></div>

Q: What is the minimum size of an endless pool?

• <div><p>You can purchase preassembled or customized endless pools as small as 6-by-6 feet, though larger options are more common. For safety purposes, you will also need to set aside space surrounding the pool to support the pool and pool deck. A <a href="https://www.angi.com/articles/swimming-pool-size-chart.htm">pool size chart</a> can help you visualize the best shape for your needs.</p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your above ground pool installation project in Ennis, MT?

Select your specific project to find the pro for you.

Verified Reviews for Above Ground Pool Installation pros in Ennis, MT

*The Angi rating for Above Ground Pool Installation companies in Ennis, 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.

*The HomeAdvisor rating for Above Ground Pool Installation companies in Ennis, 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.

Last update on April 15, 2026

Reviewed in April 2026
we had concrete pads added after home construction. One pad had a 2 inch settlement on one corner. Complicating this was a stone wall sitting atop the pad. Excellent restoration was done by Groundworks From Bozeman. After a thorough evaluation by Ben, Chelsea and Tyler were prompt,...
Groundworks
Request a quote
Reviewed in February 2026
Amazing job done. Very thankful
Lucas Plumbing, LLC
Request a quote
Reviewed in November 2023
Steven did a great job on our trim.
Anders Construction, LLC
Request a quote
Reviewed in August 2022
From our meeting with our sales rep, Scott, to the installation team headed by Wyatt, our experience was top-notch. I was worried about the potential mess of getting the new windows in. The guys covered up everything in the rooms they were working in, they cleaned up after themselves and there...
Renewal by Andersen of Montana
Request a quote
Reviewed in October 2021
Saul Garcia and Jonathan Gutiewez were amazing! They were prompt, professional and installed everything to perfection. I am very pleased and would highly recommend them. Belinda in Scottsdale
Dreamstyle Remodeling of New Mexico
Request a quote
Reviewed in June 2021
Brandon and his crews were great to work with and I highly recommend for them for Concrete, Framing, Timber Framing, and Exterior Siding. Brandon operates a very detailed, organized, and honest business. I would gladly hire him to manage any project from start to finish.
Ram construction and renovations
Request a quote
Reviewed in April 2016
These guys worked hard and fast to remove the trees in my yard. They also ground some stumps and trimmed some trees. The yard looks great because of them! They made a huge difference. They all were polite and cleaned up after themselves. The owner is very knowledgeable and fair.
Apex Tree and Landscape
Request a quote
Reviewed in August 2013
Installation of Quartz countertops. Price was higher than others, but at least Mike seemed interested in getting the business. Had a couple of issues with the install, but Mike came back and corrected them in timely fashion.
Gaskin Granite and Marble
Request a quote

Top-Rated Above ground pool installation pros in Ennis - Updated Nov 2026

Above Ground Swimming Pool or Accessories - Repair or Service

Serving Ennis, 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

Request Quote

American Home Shield – Home Warranty

3.5(

5,689

)

Above Ground Swimming Pool or Accessories - Repair or Service

Serving Ennis, MT and surrounding areas

In business since 1971

Credit card accepted

"One oven doesn't work at all ( my choice, see above), the "working" oven was never calibrated properly so using it is hit or miss. It's time to call American Home Shield to see about replacing the entire unit. I'm waiting to finish other home projects before calling them. I don't know if I'll request Greenway again."

Recommended by65%of homeowners

Request Quote

Install Above Ground Pools FAQs, answered by experts

Most importantly, you should never cut corners when building a pool. Whether it’s an in-ground or aboveground, poorly constructed pools are dangerous to both the swimmers and your property. Leaks can even lead to home foundation damage. While you can DIY smaller elements of pool installation, always hire a contractor to oversee the process.

A solar cover can heat your pool anywhere from 5 to 15 degrees Fahrenheit over the course of 6 to 12 hours, depending on how much full sun your pool gets and how big it is. When used in conjunction with a solar pool heater, your pool will heat up even faster, all while using less energy than a traditional pool heater.

You should add chlorine within 48 hours of filling your pool with water. In just 24 hours, bacteria and algae will begin to grow and contaminate your water. After that point, you’ll need to shock the water with high levels of chlorine, and you’ll likely need to do additional vacuuming to get the pool clean. It’s important to check your chlorine levels two to three times a week and add more chlorine as needed to maintain a healthy level.

Whether your homeowners insurance covers a pool leak depends on your specific policy, so it's essential to check your policy documents before taking on any repairs. Typically, leaks caused by a covered event, such as a fallen tree branch or a fire, may be covered. However, leaks resulting from general wear and tear or poor maintenance are usually not. It is also a good practice to review your homeowners insurance policy before installing a pool to fully understand your personal liability and coverage.

You can purchase preassembled or customized endless pools as small as 6-by-6 feet, though larger options are more common. For safety purposes, you will also need to set aside space surrounding the pool to support the pool and pool deck. A pool size chart can help you visualize the best shape for your needs.

The Ennis, 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.

See all articles

Mariel Loveland
•
Sep 7, 2026Sep 7, 2026
How Much Does an Aboveground Pool Cost? [2026 Data]
Dreaming of summertime swimming? Find out aboveground pool costs, including prices for materials, fun extras, and professional installation.
Stacey L. Nash
•
Oct 28, 2026Oct 28, 2026
How Much Does Aboveground Pool Electrical Installation Cost? [2026 Guide]
Keep pool-side dreams from getting short-circuited by being aware of pool electrical installation costs and how they can affect your overall budget.
Mariel Loveland
•
Oct 14, 2026Oct 14, 2026
How Much Does an In-Ground Pool Cost? [2026 Data]
Considering a swimming pool for your backyard? Find out everything you need to know about in-ground pool costs, from materials to labor and more.
Dan Simms
•
Jul 31, 2026Jul 31, 2026
Can You Put an Above Ground Pool in the Ground? Here’s What to Know
Above ground pools are more affordable than inground pools, so can you put an above ground pool in the ground to save money? Learn when it’s safe to do so.
Angi
•
May 21, 2026May 21, 2026
How to Hire an Above-Ground Pool Installation Pro
Learn how to hire an above-ground pool installation. Discover questions to ask, qualifications to check, and tips for finding a reputable contractor.
Ginny Bartolone
•
Jul 31, 2026Jul 31, 2026
The Ultimate Guide to Above Ground Pool Sizes, Types, Materials, and More
Knowing the size of above-ground pools will help you choose the right one for you. Here are the measurements and types of above-ground pools to know.