Design
From lush greenery to cute villages that retain “The Nutmeg State”’s Revolutionary-era charm, there’s a lot to admire about Connecticut.

Rules and Regulations
If you’re considering purchasing a new inground pool, you probably have a lot of questions about securing the proper permits and making sure your pool adheres to local regulations. Here are some of the most common questions we hear from prospective pool owners in Connecticut.

Do you need a permit to build a pool in Connecticut?

According to the 2022 Connecticut State Building Code, The Constitution State requires a permit for any new pool construction or renovations to an existing pool.

It’s important to check with your local building office to better understand what additional permits, if any, may be required in addition to a pool construction permit. In Connecticut. You may also need to secure an electrical or plumbing permit, as well as submit building plans and drawings along with your permit application. Working with a knowledgeable pool builder can help you more easily navigate the process and obtain the proper permits.

Do you have to have a fence around a pool in Connecticut?

The 2022 Connecticut State Building Code’s adoption of the 2021 International Swimming Pool Code requires that all residential swimming pools be surrounded by a fence. Additionally, during the construction process, any excavated areas must be surrounded by a fence that stands a minimum of 4 feet high.

How high does a pool fence need to be in CT?

Connecticut requires that all residential pools have a barrier that meets the statewide minimum of 48” (4 feet) high. Pool gates that grant access to the pool must be self-latching and self-closing, with the gate swinging outward from the pool. If the release mechanism is located less than 54” from the bottom of a gate, it must be located on the pool side of the fence, at least 3” below the top of the fence.

While this law applies throughout the state, different municipalities throughout Connecticut may have more stringent requirements around pool fencing. Be sure to consult with your local building office to be sure your pool and all associated fencing is compliant with state, as well as local codes.

Seasonality
Connecticut’s climate features warm, humid summers and cold winters with snow and freeze-thaw cycles, meaning your swim season varies by location and weather conditions. In coastal and southern areas like Stamford, Bridgeport, and New Haven, fiberglass pool owners typically enjoy swimming from late May through early September, with the season often extending into October when paired with an efficient heating system or integrated spa.

In northern and inland towns like Torrington, Litchfield, and Hartford, cooler temperatures and earlier frosts make pool heating and covers essential to maximize swim time. Connecticut’s variable soil types from sandy coastal plains to rocky highlands combined with seasonal temperature swings, make fiberglass pools a smart, low-maintenance choice that resists cracking, shifting, and other weather-related damage.

Quick Fun Facts About Connecticut:

Here’s some helpful info for anyone planning a backyard pool in the Constitution State!

• Average number of sunny days annually: ~190, providing ample opportunities for poolside fun during summer months.

• Average summer temperature (June–August): 75–85°F, often paired with high humidity ideal for refreshing swims and outdoor living.

• Average winter temperature (December–February): 20–35°F, making pool heating necessary for extended use.

• Average pool temperature: 78–85°F in summer, 70–75°F in spring/fall with heating. Pool covers and heaters help retain warmth during cool nights.

• Average annual precipitation: 45–50 inches, with steady rainfall supporting lush landscaping but requiring regular pool maintenance during the growing season.