Spray Foam Insulation in Helena, AL

Spray Foam Insulation in Helena is mostly about newer houses, though the town itself is old. Helena first incorporated in 1877, and a rolling mill on Buck Creek processed iron from around 1864 until 1923. A tornado on May 5, 1933, destroyed many of the town's original houses. The population stayed small for decades, then took off: from 3,918 in 1990 to 20,914 in 2020. Point2Homes' summary of 2019-2023 Census survey data shows 28.3% of homes built in the 1990s, 30.9% from 2000 to 2009 and 17.4% from 2010 to 2019, for a median year built of 2001.

What newer Helena houses need

Most of these homes put the air handler and ducts in the attic, and many have bonus rooms, vaulted ceilings and complex rooflines. Houses built before Alabama's 2016 code update were not required to pass a blower door test, so air sealing at the attic floor was often thin. After 20 or 30 years, the attic insulation has settled and the ducts have had time to loosen at the joints. Sealing the attic floor and topping up the insulation is usually the starting point. Attic encapsulation is worth pricing if the HVAC system is due for replacement.

Storms and repairs

Helena knows severe weather. Besides the 1933 tornado, a tornado on March 25, 2021, did EF1 damage to several homes and downed trees in multiple neighborhoods, according to Wikipedia. After roof repairs, insulation that got wet or was disturbed should be checked. Wet insulation loses much of its value and can hold moisture against wood, so it is better removed and replaced once the roof is sound.

Along the Cahaba and Buck Creek

The Cahaba River and Buck Creek run through the city, and Buck Creek is dammed in Old Town to form Lake Davidson. Homes on crawl spaces near the water can see more moisture under the floor. For those, crawl space encapsulation with a vapor barrier and closed-cell foam on the walls keeps the space dry. Where a house sits on a slab instead, we focus on the attic and walls.

Building or finishing space

With 4.9% of homes built in 2020 or later, construction is still active. Spray foam in the walls and roofline of a new house or addition is easiest before drywall.

Spray foam insulation cost in Helena

HomeGuide's national figures put spray foam at $1.50 to $3.50 per square foot for open-cell and $3.00 to $5.00 for closed-cell, and blown-in insulation at $1.00 to $2.80 per square foot. For a typical newer Helena house, the difference between topping up the attic floor and encapsulating the roofline can be several thousand dollars, which is why we price both when both would work. The number on your written estimate is what you pay.

Tell us when your house was built and where the HVAC sits, and we will come look. Get a free estimate