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TRUSTED BY DOVER, PA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon27
    Verified insulation services reviews

Find Insulation pros in Dover

Avatar for The Cozy Penguin Insulation Company
The Cozy Penguin Insulation Company
4.7(
60
)

Serving Dover, PA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"The work that Koala of Central Pa installed roof insulation at our church. The work was completed in a very professional manner. Work was done in a timely fashion."
Response time2 days
38 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Energy Smart Home Improvements, LLC
Energy Smart Home Improvements, LLC
4.6(
83
)

Serving Dover, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Small jobs welcome

"Very easy to work with. The owner himself came out to give me an estimate. Mark completed the actual insulation. He was quick and he did a great job cleaning up the area after doing the spray insulation. Highly recommend!"
 Air Leakage in your Home
 Blower door test to quantify air leakage
 Air infiltration through recessed light
 Duct leakage testing
 Attic air sealing

+6

Response time2 days
36 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)

Serving Dover, 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
125 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Tri-State Builders
Tri-State Builders
4.6(
104
)

Serving Dover, PA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"On time, courteous, clean and efficient. Foamed and drywalled the garage efficiently, and cleaned up well after the job. Provided advise on issues seen during insulation preparation. Great service."
 Kitchen
Barber Addition
Rowland Addition
Custom Home
Traska Addition

+36

Response time4 days
13 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mavrix Construction LLC
Mavrix Construction LLC
5.0(
3
)

Serving Dover, PA and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

At Mavrix Construction, we believe hiring a contractor should be stress-free. We specialize in professional spray foam insulation across Pennsylvania, managing every detail of your project from first call to final walkthrough.\n\nWe answer our phones. We show up when we say we will. We communicate every step of the way. And we don't consider a job finished until you're satisfied.\n\nOur commitment is simple — competitive pricing, quality work, and the kind of customer service that's rare in the trades industry.\n\nWhen you choose Mavrix, you're choosing a team that treats your property like our own.

Logo
77 neighbors recently requested a quote
Avatar for Orkin
Orkin
New to Angi

Serving Dover, PA and surrounding areas

Approved

In business since 1901

Free estimates

Warranties offered

Did you know that Orkin does Insulation? Our more than 100 years of pest control experience began in 1901 by then fourteen-year-old Otto Orkin. In that , we've become a leader Pest Control as well as an expert Home Insulation. Orkin - We can help energize your home. \n\n

Superior Insulation
4.9(
68
)

Serving Dover, PA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"I communicated with Ron directly and he was determined to solve our insulation problems. He had to remove drywall in our entranceway and add in insulation where there were large gaps and air was getting in. He had a worker drywall and patch up the wall. The drywall worker did an amazing job! 
Ron also fixed an ongoing issue we had in our garage ceiling that was causing our living room floor to be cold and drafty. He worked around our schedule and made multiple visits to our home to fix the issue. We are happy customers and happy to say that the problem is fixed. We were very pleased with Ron and his company and do recommend him highly.
"
Recommended by95%of homeowners
Avatar for Q Insulation Contractors, Inc.
Q Insulation Contractors, Inc.
4.8(
25
)

Serving Dover, PA and surrounding areas

In business since 2020

Free estimates

"These guys were great. They insulated my attic efficiently, and they discovered a wall between my garage and bedroom literally had no insulation. They were able to fix that quickly for a very reasonable cost. I like that they show you before and after videos!"
Response time2 days
Recommended by92%of homeowners
Showing 1-10 of 39
Insulation questions, answered by experts

Chimney liners often benefit from insulation, though it is not always required. Insulation helps improve the liner's efficiency by keeping flue gasses hotter, which enhances draft and reduces creosote buildup. It also prevents condensation, which can lead to corrosion. Insulation is important for chimneys on exterior walls or in colder climates. Some building codes may require insulation, so checking local regulations is essential.

It improves energy efficiency, reduces noise, enhances indoor comfort, and prevents drafts by filling wall cavities.

Minimal, mainly occasional checks for damage or mold in extreme conditions.

The most affordable way to insulate a garage involves choosing cost-effective materials like fiberglass, which comes in batts or rolls and is relatively easy to install. You can often install this type of insulation without needing to add drywall, which helps reduce costs. While a DIY approach might seem cheapest, hiring a professional installer can be highly cost-effective. Experts can accurately determine your garage's specific insulation needs and ensure the best results for your investment, often using batt insulation for the bulk of the project.

Yes, spray foam insulation can be applied to your ductwork and effectively insulate your ducts. Blanket insulation is the easiest insulation product to DIY since it is easy to wrap around ducts. However, spray foam insulation can also benefit your HVAC system if applied to air ducts.

The Dover, PA homeowners’ guide to insulation services

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