Your AC can’t fix a leaky house.
Less conditioned air lost means shorter run times on the same system.
Fewer drafts, hot spots and cold rooms.
Sealing gaps helps keep dust, pollen and outdoor pollutants out.
Leaky attic ducts are often part of the same problem — we check both.
Start with the ducts.
Attic ducts in a Texas summer sit in extreme heat; every leak there is cooling you paid for. See how we test and seal them.
Where the comfort leaks out.
Your AC can be working perfectly and the house still feels wrong. These are the usual clues that the problem is the envelope, not the equipment.
Upstairs or west-facing rooms run hotter all summer and colder on winter mornings.
Long run times and high bills even after a tune-up says the system is healthy.
Air you can feel around outlets, baseboards and the attic hatch, and dust that comes back fast.
Joists showing through, or insulation that is matted, patchy or disturbed by past work.
Seal it, then insulate.
We look at the attic, the hatch, recessed lights, plumbing and wiring penetrations, and the ductwork, and show you photos.
Gaps and penetrations sealed with the right material for each spot, so conditioned air stays in the house.
Insulation added where it is thin or missing, laid evenly so there are no bare spots over the rooms below.
You approve the number before any work starts, with financing available on approved credit.
Insulation questions, answered straight.
Should I seal or insulate first?
Seal first. Insulation slows heat moving through the ceiling, but it does not stop air leaking through gaps around lights, vents, pipes and the attic hatch. Sealing those first makes the insulation work as intended.
How do I know if my attic needs more insulation?
If you can see the tops of the ceiling joists, or the insulation is thin, matted or patchy, it is usually time to add more. We check depth and coverage during the visit and show you what we find.
Will this lower my electric bill?
It usually shortens how long your AC runs to hold the same temperature, which is what drives the bill. How much depends on the house; we will not promise a number we cannot back up.
Can air sealing make my house too tight?
Most San Antonio homes are nowhere near too tight. We seal the leaks that waste conditioned air, and we keep combustion appliances and ventilation in mind while we do it.
Do you check the ductwork too?
Yes. Leaky attic ducts and missing insulation are often the same problem, so we look at both and tell you which one is costing you more. See duct sealing.
More reading: how insulation really works · your insulation options · how insulation saves money · benefits of air sealing · signs you need air sealing.
Talk it through with a real tech.
Answered 24/7 · 365 days · 6510 Blanco Rd, San Antonio