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TRUSTED BY WILLOW GROVE, PA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon213
    Verified insulation services reviews

Top-Rated Insulation pros in Willow Grove - Updated Nov 2026

Avatar for Alligood Energy
Alligood Energy
4.9(
105
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Willow Grove, PA and surrounding areas

Approved

In business since 2012

Credit card accepted

Customers say: Quick response

"It went very well. Jon arrived on time and spent a good bit of time looking all around the basement and attic, even performing a home leak test which revealed that our chimney's damper doesn't perform as it should (already called for service) and that the insulation in our attic is up to code. He made useful suggestions about potential upgrades to our HVAC and water heater, as well as our thermostat. He installed energy efficient light bulbs in the few lamps where we didn't already have them. All told: a very useful expenditure of time and limited funds (the state of DE covering 3/4s of the cost!"
Insulation Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
Response rate100%
5 neighbors recently requested a quote
Bulldog Insulation, LLC
4.5(
268
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Willow Grove, PA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Zach and the BullDog Insulation team did an great job with my insulation project. It was a challenging project since the team had to navigate pipes and sprinklers in a small space. They did an wonderful job and everyone was professional and positive!"
21 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Master Attic, LLC
Master Attic, LLC
4.8(
61
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInsulation - Install or Upgrade

Serving Willow Grove, 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%
15 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Willow Grove, 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%
125 neighbors recently requested a quote
Avatar for Atticrawl, LLC
Atticrawl, LLC
4.7(
18
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Willow Grove, 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
56 neighbors recently requested a quote
Recommended by62%of homeowners
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Insulation FAQs, answered by experts

When looking for a company who installs insulation, your best bet is usually to work with an insulation contractor or professional insulation company. If you can't find a local insulation company, working with a general contractor can be another option. No matter who you hire, always confirm that they have experience.

DIY installation is not recommended, as professionals ensure even distribution, proper sealing, and compliance with building codes.

The average cost to install insulation is around $1,800, but you could pay anywhere between $500 and $4,500, depending on various factors. Some of the things that have a significant influence on your pricing include the following:

  • Size of the area 

  • Type and R-value of the insulation 

  • Whether your space is finished or unfinished

  • Accessibility of the area

  • Your geographical location

  • Amount of site preparation, especially for blown-in insulation

  • Whether or not you need old insulation removed

Water heater blanket prices range from $20 to $40 on average, though you typically won’t need to spend more than $30 for all the tools and materials required for installation—which include the blanket itself, heavy-duty scissors, and electrical tape. Blankets with higher R-values will also be slightly higher in price.

Yes, you should add an insulative cover to outdoor water spigots in the winter for better protection against freezing. Make sure to use waterproof insulating material—something like a towel or old shirt can actually make the faucet more prone to freezing when the material soaks up rain or snow.

The Willow Grove, PA homeowners’ guide to insulation services

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