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Best insulation companies in Pennsylvania

The highest rated insulation companies across Pennsylvania, aggregated from every TopRated city directory in the state.

Rankings updated August 2026 from Google ratings and review volume

The full Pennsylvania ranking

1
Koala Insulation of the Delaware Valley
Philadelphia · ★★★★★ 5 · 167 Google reviews
2
Ideal Siding Pittsburgh
Pittsburgh · ★★★★★ 5 · 100 Google reviews
3
Alber Service Company (HVAC, Air sealing and Insulation) South Jersey
Philadelphia · ★★★★½ 4.9 · 481 Google reviews
4
Insulwise Energy & Comfort Solutions
Pittsburgh · ★★★★½ 4.9 · 326 Google reviews
5
PJ Fitzpatrick
Philadelphia · ★★★★½ 4.8 · 14160 Google reviews
6
Bolster-DeHart, Inc.
Pittsburgh · ★★★★½ 4.8 · 724 Google reviews

How to pick well

The right insulation contractor measures your current R-value, quotes the actual improvement, and is honest about payback. In Florida, attic insulation is one of the highest-return AC upgrades.

Looking for insulation companies near me in Pennsylvania? Start from the city directory closest to you: Philadelphia, Pittsburgh. Each one ranks the local companies and shows the service area, which matters more on this kind of work than a statewide average.

Insulation in Pennsylvania: common questions

Who are the best insulation companies in Pennsylvania?

Based on Google ratings and review volume as of August 2026, the top rated insulation companies in Pennsylvania are Koala Insulation of the Delaware Valley, Ideal Siding Pittsburgh, Alber Service Company (HVAC, Air sealing and Insulation) South Jersey. See the live ranked list, ratings, and contact details on this page.

How do I find insulation companies near me in Pennsylvania?

Every company ranked on this page serves Pennsylvania and the surrounding area, including Philadelphia, Pittsburgh. Open any listing for its address, phone number and service area, then call the two or three closest to you. Distance is worth checking yourself: the nearest insulation company is not automatically the best one, so this page ranks on rating and review volume first and leaves proximity to you.

How do I choose an insulation company in Pennsylvania?

The right insulation contractor measures your current R-value, quotes the actual improvement, and is honest about payback. In Florida, attic insulation is one of the highest-return AC upgrades.

Are you a top-rated Pennsylvania pro?

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Prefer to talk? Call or text the Top Rated directory on (813) 454-0813. This is our number, not the number of any business listed here.