Spray Foam Insulation in McLean, VA

Spray foam insulation in McLean usually involves big houses. McLean is a census-designated place in Fairfax County named for John Roll McLean, former publisher of The Washington Post, who backed the Great Falls and Old Dominion Railroad completed in 1906. The 2020 census counted 17,948 housing units, 5.0 percent vacant, and in 2012 the median home value was $908,000.

Big attics with equipment

Larger homes often have second-floor HVAC equipment and long duct runs in the attic. In summer that attic gets very hot. Foam on the roof deck can bring that equipment inside the conditioned space; otherwise, sealing the ducts and ceiling and adding depth helps.

Bonus rooms and finished basements

Rooms over garages and large finished basements are common. Foam in the garage ceiling, knee walls, rim joists and basement walls addresses most complaints.

Code

Virginia's 2021 Residential Code took effect January 18, 2024. Fairfax County is in Climate Zone 4A.

Basements

Large finished basements can still be cold where the rim joist was only stuffed with batts. Foam at the rim, and on unfinished walls, is a common upgrade.

Multiple zones

Many McLean homes have two or three HVAC zones. We look at where each system's ducts run, because ducts in an unconditioned attic waste energy every summer day.

Written scope

Each area is listed with its material, thickness, R-value and price.

Scheduling

Larger houses mean larger jobs. A whole-attic seal and top-up in a big house may take more than one day, and foam jobs need the house empty for 24 hours or more while the foam cures. We give you the timeline in writing.

Renovations

Many McLean homes are renovated or rebuilt. Foam goes in best while walls are open. Get a free estimate