Spray Foam Insulation
in Lewisville, TX

Lewisville developed in stages. Old Town Lewisville and the neighborhoods around the original downtown core have homes from the 1940s and 1950s — the oldest housing stock in the immediate area. The Hebron, Bellaire, and Lakepointe neighborhoods filled in during the 1970s through 1990s with standard production housing. Newer communities near FM 3040 and toward the Flower Mound border have homes from the 2000s. Each era has different insulation starting points, but all of them share one factor: proximity to Lake Lewisville introduces a summer humidity load that inland cities at the same latitude do not face.

Lake Lewisville Humidity and What It Does to Insulation

Fiberglass batts are permeable. Summer humidity from the lake infiltrates the attic and is absorbed by the batt material over time. Insulation that absorbs moisture loses R-value, and moist insulation in a hot attic creates conditions for mold. In Lewisville homes within two miles of the lake, we regularly find insulation that has degraded faster than it would in an inland location. This is the core reason we often recommend closed-cell spray foam for lake-adjacent attics over blown-in or fiberglass: spray foam does not absorb moisture and acts as a vapor barrier, addressing the humidity infiltration problem directly.

Old Town Lewisville: 1940s and 1950s Originals

The older neighborhoods around Old Town Lewisville have original construction that predates modern insulation standards by decades. Homes from this era often have minimal attic insulation — R-11 or less, sometimes nothing at all in certain sections. These homes are among the most impactful upgrade candidates in our entire service area: the starting point is low, the summer heat load is high, and the lake humidity compounds both problems. A full removal and spray foam attic upgrade in a 1950s Old Town home produces immediate, dramatic results in summer comfort and cooling costs.

Response Time from Frisco to Lewisville

Lewisville is 15 to 20 minutes from our Frisco base via FM 423 or I-35E. It is one of our closest service areas, and we have capacity for Lewisville jobs most weeks without any special scheduling lead time. Free assessment within 48 hours is typical. No travel surcharge.

Services in Lewisville

Spray foam attic upgrades (open-cell and closed-cell), blown-in attic insulation for top-offs and full replacements, crawl space insulation and vapor barriers for older homes with elevated moisture exposure, fiberglass batt installation for walls and floor systems, and full insulation removal for attics with moisture-degraded or pest-damaged material.