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3 Best Insulation Services in Philadelphia (2026)

Ranked by real Google ratings and review volume · How we chose

Brad Smith
By Brad Smith, Home Services Expert · ✓ Updated · 7 min read

We compared 17 insulation services in Philadelphia on Google Maps · 3 listed · How we rank

Many Philadelphia rowhomes are brick and more than a century old, and they tend to lose heat where you can't see it: through the attic floor and the walls. The insulation services in Philadelphia on this page hold more than 700 Google reviews between them, rated from 4.6 to 4.9, and every one of these firms is based just outside the city rather than inside it.

Short answer: Alber Service Company has the largest review base here, 4.9 stars from more than 500 Google reviews, though it is a Pennsauken, New Jersey heating and cooling contractor that also does insulation. AGL Spray Foam (4.9) in Sharon Hill is the spray foam specialist, and USA Insulation of Philadelphia (4.6) in Conshohocken lists injected wall foam, blown-in attic insulation and crawl space foam.
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Attic, Wall and Spray Foam Options Side by Side

# Business Rating Reviews Best for
1 Alber Service Company 4.9 ★ 502 Attic insulation plus HVAC View ›
2 USA Insulation of Philadelphia 4.6 ★ 154 Walls, attics and crawl spaces View ›
3 AGL Spray Foam 4.9 ★ 66 Spray foam View ›
3 Best Insulation Services in Philadelphia (2026)

Who does what: the insulation shortlist

Alber Service Company logo
#1 Overall🕑 Open 5 days/wk↩ Responds to reviews

Alber Service Company

4.9502 Google reviews

Alber Service Company is a heating and cooling contractor in Pennsauken, New Jersey, whose Google profile also lists insulation. Its listed categories cover insulation, air conditioning and heating work, and customers describe attic and crawlspace insulation, duct repair, and boiler and water heater installs. Google shows it open weekdays from 8 AM to 5 PM.

What people praise

  • One reviewer said the estimator walked the full attic and crawled the tight crawlspace, with no sales pressure
  • A customer who chose it for R-60 insulation said the plan included a catwalk for safe attic access
  • Technicians are described as explaining their work, with one even wearing booties indoors
  • Handles heating, cooling and ductwork too, which helps when insulation and comfort problems overlap

Worth knowing

  • A large share of the reviews are about heating, cooling and duct work rather than insulation, so look for the insulation-specific ones
  • One four-star reviewer said they had to stay on top of the crew to see every item finished properly
Reputation scorecardrank in Philadelphia
Rating4.9 / 5
Review volume502 · 97th
Confidencehigh
Recency10 days ago
Info completenesssite · phone · hours
Rating breakdown96% 5-star
✓ VerifiedSource: Google

Our take: The largest review base on this page, but much of it is HVAC work. It suits a home where the attic and the heating system both need attention.

Website+1856-254-0955 Directions

7300 N Crescent Blvd Bldg 15, Pennsauken, NJ 08110

USA Insulation of Philadelphia logo
#2🕑 Open 5 days/wk↩ Responds to reviews

USA Insulation of Philadelphia

4.6154 Google reviews

USA Insulation of Philadelphia is a local office of what appears to be a national insulation brand, with an address in Conshohocken, Pennsylvania. Its website lists injected foam for walls, blown-in insulation for attics, and spray foam for crawl spaces and basements, and names a service range from Doylestown to Chester and from Pottstown to Cherry Hill.

What people praise

  • One reviewer noticed a clear change in temperature and in outside noise two days after the foam went in
  • A customer said the crew covered furniture, helped move items and stayed in touch during and after the work
  • Another reviewer called the salesperson friendly and honest and the technicians respectful and good at explaining the process

Worth knowing

  • Opinions are more mixed than at the other names here: a handful of low ratings describe workmanship and follow-up problems, so read them before booking
  • Wall injection means drilled holes, and reviewers mention patching and touch-up paint afterward
  • One reviewer called the price tag high, though worth it to them
Reputation scorecardrank in Philadelphia
Rating4.6 / 5
Review volume154 · 91st
Confidencemoderate
Recency2 years ago
Info completenesssite · phone · hours
Rating breakdown82% 5-star
✓ VerifiedSource: Google

Our take: A solid rating on a mid-sized review base, but a wider spread of experiences. Get the scope, the patching and the finish work written into the quote.

Website+1267-551-1900 Directions

10 Colwell Ln, Conshohocken, PA 19428

AGL Spray Foam logo
#3🕑 Open 6 days/wk↩ Responds to reviews

AGL Spray Foam

4.966 Google reviews

AGL Spray Foam is a spray foam insulation contractor in Sharon Hill, Pennsylvania, open Monday through Saturday from 7 AM to 8 PM according to Google. Customers describe a whole-house job, a metal building sprayed with closed-cell foam, and one repeat customer lining up his garage next.

What people praise

  • A reviewer said the crew came out virtually the next day for a metal building job and taped off windows, doors, floor and electrical
  • One homeowner said his general contractor called it the cleanest spray foam job he had seen
  • A DIY-minded reviewer valued that the company brings its own trucks, crew and mixing equipment
  • Two reviewers described the pricing as very fair

Worth knowing

  • Reviewers describe spray foam only, so ask about blown-in or fiberglass if that is what your attic needs
  • The smallest review base on this page
Reputation scorecardrank in Philadelphia
Rating4.9 / 5
Review volume66 · 79th
Confidenceearly
Recency5 months ago
Info completenesssite · phone · hours
Rating breakdown98% 5-star
✓ VerifiedSource: Google

Our take: A spray foam specialist with a 4.9 rating, best when closed-cell foam is the plan. Its review base is the smallest here, so ask for a written scope.

Website+1800-957-1229 Directions

1408 Calcon Hook Rd, Sharon Hill, PA 19079

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How the scorecards work

Every number on this page is computed from public Google data on the date shown, not from opinion or payment. Rating is the business’s live Google star average. Review volume is how many customers have rated it. Confidence weighs the rating by that volume, so a 4.9 from hundreds of people carries more weight than a 4.9 from a few dozen. Recency reflects how recently customers are still leaving reviews. No business can pay to change these numbers.

What drives insulation pricing in Philadelphia

Insulation pricing depends on the material (spray foam, blown-in or injected foam), the square footage, how easy the attic or crawl space is to reach, and whether air sealing or ductwork is part of the job. One Alber customer described an original quote of around $15K that came down to about $7.5K after the scope was refined and utility rebates were applied. Treat that as one household’s experience, not a typical price.

Insulation companies serving Philadelphia from outside the city

These firms reach Philadelphia from the suburbs: Alber from Pennsauken, New Jersey, USA Insulation of Philadelphia from Conshohocken (its site names Doylestown, Chester, Pottstown and Cherry Hill within its range), and AGL Spray Foam from Sharon Hill. Searching for insulation near me? Each listing below shows a phone number and directions so you can ask whether your address is inside the service area.

Questions to settle before anyone opens a wall or attic

  • Which material are you proposing (spray foam, blown-in or injected foam), and why for this part of the house?
  • Will you air seal the attic first, and is that in the quote?
  • If walls are being injected, where will the holes be drilled and who patches and paints them?
  • Is the quote in writing, with the scope, the R-value and the areas covered?
  • Do you handle utility rebate paperwork, and does the final price assume the rebates?

Frequently asked questions

Are any of these insulation companies based inside Philadelphia?

No. Alber Service Company is in Pennsauken, New Jersey, USA Insulation of Philadelphia is in Conshohocken, and AGL Spray Foam is in Sharon Hill. Ask each one to confirm it covers your address and whether travel affects scheduling.

How does wall insulation get installed in an older brick house?

USA Insulation’s site lists injected foam for walls. One customer described foam blown in through holes drilled from the outside, and another said it was done from the inside instead, with touch-up paint needed afterward. Ask any installer which approach they would use and how the holes are patched.

Is Alber Service Company mainly an insulation contractor?

Its Google profile lists insulation first, but it also lists air conditioning, heating and HVAC work, and many of its reviewers describe duct repair, boiler installs and heating service. Its insulation customers mention R-60 attic insulation and a catwalk for attic access.

Which of these companies does spray foam?

AGL Spray Foam is built around it, with reviewers describing closed-cell foam on a metal building and a house project. USA Insulation’s site lists spray foam for crawl spaces and basements alongside injected wall foam and blown-in attic insulation.

Picking the right installer for your house

Alber is the safest default on review volume, especially if your heating or ductwork needs a look too. AGL is the pick when you already know you want spray foam, and USA Insulation covers walls, attics and crawl spaces if you read its mixed reviews first. Whoever you call, get the scope in writing before work starts.

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