Wall Insulation in San Angelo, TX

Wall insulation in San Angelo matters most on the west and south sides of a house, where afternoon sun beats on the siding or brick for hours. Older homes often have little or nothing in the wall cavities, and even newer walls can have gaps where batts were cut short around outlets, plumbing and framing. How we fix it depends on one thing: whether the wall is open.

Open walls: remodels, additions and new builds

When drywall is off for a remodel or an addition is being framed, spray foam is the most thorough option. It fills around wiring, boxes and pipes and seals the gaps at the top and bottom plates. The 2015 code table Texas uses lists R-20, or R-13 plus R-5 continuous, for wood-frame walls in Zone 3. Open-cell in a 2x4 wall gets about R-13; reaching higher numbers can take closed-cell or a combination. We size the plan to your wall depth and your goals, and write the expected R-value on the quote.

Closed walls: older homes

If the walls are finished, tearing out drywall to spray foam rarely makes sense. Instead, insulation can be blown into the cavities through small holes, usually dense-packed cellulose or fiberglass, then the holes are patched. It is less complete than foam in an open wall, but it fills empty cavities that otherwise hold nothing at all. Before blowing walls, we check for knob-and-tube wiring and fire blocking, and we test a few cavities to see what is already there.

Brick, stone and siding

Many San Angelo homes have brick or local stone veneer on the outside. The insulation still goes in the wood stud cavity behind the veneer. The air gap between brick and sheathing stays open so the wall can drain and dry. We do not fill that gap.

Garage and attic kneewalls

Walls between the house and the garage, and short walls that separate finished rooms from attic space, are often the weakest walls in a house. Kneewalls in bonus rooms and second floors are a common source of hot rooms in summer. These are usually reachable from the attic or garage side, so foam or batts with a proper air barrier can be added without removing interior finishes.

Getting the paperwork right

Wall work in a remodel or addition usually falls under the remodel's building permit, and the inspector will want to see the insulation before drywall. We work with your general contractor's schedule so the insulation inspection happens on time.

If you are opening walls, or you live in an older home with walls that feel warm in summer, we can look and price the options. Get a free estimate