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Find Insulation pros in Philadelphia

Avatar for Alligood Energy
Alligood Energy
4.9(
105
)
Insulation - Install or Upgrade

Serving Philadelphia, PA and surrounding areas

Approved

In business since 2012

Credit card accepted

Customers say: Quick response

"The evaluation and the subsequent insulation work went fine. Guy clearly knew their stuff and did a good job. Punctuality was an issue. First date for Eval was missed entirely, the late for second appointment. On day of insulation work they were late and could only do half the job since their spray foam unit wasn't working. Came back next day to finish."
Insulation Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for Master Attic, LLC
Master Attic, LLC
4.8(
61
)
Insulation - Install or Upgrade

Serving Philadelphia, PA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Contacted Master Attic via Angi and Alex, the technician came to evaluate our attic and crawl space (2 separate spaces in our house). We heard critter noises and our upstairs was hot in the summer. The insulation was original to the ~30 year old house, so we know it's about time to get it done. Alex checked both spaces and showed us photos of problem areas. We have an estimate and Alex explained the details of the work involved. The team came within the week (we lucked out to take the spot of a cancellation), and everything was done as expected. There was a lot of work to remove old insulations, vacuum all debris, sanitize the space, seal all air gaps, install baffles, rodent proof, and install new insulation. The work was completed in around 6 hours, the spaces are now clean and tidy - quite unbelievable given how they were before. We went for the heavier insulation which is reflected in the project cost."
Crawlspace remediation, new batt insulation and moisture barrier encapsulation
Old insulation removal and replace with new batt insulation
Rodent hole on corner of roof
New Blown-in insulation
Crawlspace remediation, new insulation & moisture barrier encapsulation

+106

Response time2 days
Response rate100%
16 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)

Serving Philadelphia, PA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"We are extremely satisfied with the whole process of our house being insulated. First we had the walls done, and then a couple weeks later we had our attic insulated. The crew were so nice, friendly, and knowledgeable. We are very satisfied with everything. Thank you, everyone."
RetroFoam Wall Insulation
Installing RetroFoam
RetroFoam with Siding
RetroFoam with Brick
Response time1 day
Response rate100%
115 neighbors recently requested a quote
Avatar for Atticrawl, LLC
Atticrawl, LLC
4.7(
18
)

Serving Philadelphia, PA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Welcome to Atticrawl, LLC \nWe pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Attic Insulation
Attic Insulation
61 neighbors recently requested a quote
Recommended by62%of homeowners
Avatar for USA Insulation of Philadelphia
USA Insulation of Philadelphia
4.3(
49
)
Insulation - Install or Upgrade

Serving Philadelphia, PA and surrounding areas

In business since 1977

Free estimates

Credit card accepted

"

Our primary bedroom is above the garage and even though we have a newer home, you can feel cold air coming thru the floor.  It's the coldest room in the house by far.  Ed's team came in and placed foam insulation in the garage ceiling.  He gave us $100 off for Angies list discount which was nice.  They cleaned up well when done.  Now that it's warm out I can't grade the quality of the work until winter again because I won't know till then if its helping with the problem.  I will come back and update then.  We had been quoted over $6000 by another company to do the work so hopefully this works and comes in far cheaper.


"
Recommended by92%of homeowners
Avatar for AGL Spray Foam
AGL Spray Foam
4.6(
46
)

Serving Philadelphia, PA and surrounding areas

In business since 2009

Free estimates

"I felt that AGL did a good job completing the spray open cell insulation. I have noticed that the attic is definately cooler. The winter will be a tell tale sign if the insullation project did the trick to keep the house warmer."
Response time2 days
Recommended by100%of homeowners
AGL Solar LLC
4.6(
46
)

Serving Philadelphia, PA and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"I was dreading this work being done due to the anticipated mess since we had a drywall removed to have insulation blown into our attic. The process went fairly quickly. We also had drywall that was cut in our walls to have old insulation removed and new to be blown in. The crew did a lovely job of making the cuts so getting our drywall fixed afterwards was much more simple. All said and done, it wasn't nearly as unpleasant as I had feared. Highly recommend AGL Spray Foam."
Response time2 days
Response rate97%
Recommended by100%of homeowners
Avatar for Noah’s Drywall llc
Noah’s Drywall llc
4.8(
491
)
Insulation - Install or Upgrade

Serving Philadelphia, PA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I had a leak upstairs in my 2nd floor bathroom which in turn ruined most of my first floor ceiling and floors. It was stressful and I was not sure what to do first despite my insurance covering the damages. Trying to find the right people was very difficult. After much research and multiple quotes, I decided to go with JA DRYWALL. From the first day Isaias came to give me the quote, to the last day his father, George finished the painting... JA DRYWALL did what was promised and more. After each day of work, house was cleaned and livable. All of the JA DRYWALL employees were professional and courteous. It is good to know that I was able to trust a company to do the work as promised without any worries. Thank you JA DRYWALL for making my home looking like it was before the leak... It looks like a brand new ceiling. Your work and professionalism is amazing."
Recommended by97%of homeowners
...
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FAQs for insulation service projects in Philadelphia, PA

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.

The Philadelphia, PA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.

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