Thermaseal InsulationInsulation and Air Sealing
Our Services

Wall Insulation

Older homes leak most of their comfort through empty or half-filled walls. Dense-packing fixes them without tearing the house apart.

How wall retrofits work

  • Small access holes drilled between studs - outside under siding, or inside
  • Every cavity probed - blockages found and reached, not skipped
  • Cellulose dense-packed until cavities reject more - snug against settling and air movement
  • Holes plugged and patched; siding replaced like we were never there
  • Thermal imaging spot-checks confirm full cavities

The difference dense-pack makes

Empty walls in an older home are a radiator to the outdoors - and even homes with sagging old batts have gaps working against them. Dense-packed cellulose fills the entire cavity at a density that resists both settling and airflow. The change is felt the first cold week: walls warm to the touch, drafts gone, furnace cycling less.

It's the single best comfort upgrade for pre-1980 houses, and it's done from little holes, not gut renovation.

Common questions

Will you wreck my siding or plaster?

No - we work through small, plugged and patched openings. Vinyl and lap siding lift and reinstall cleanly; interior work gets patched paint-ready.

How do you know the walls are actually full?

Density is felt at the hose, and we verify with thermal imaging - voids show cold, and we go back in until they don't.

What about knob-and-tube wiring?

Active knob-and-tube must be dealt with before insulating around it - we'll check and tell you straight, with an electrician referral if needed.

Warm walls change the whole house.

Fill my walls