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TRUSTED BY FENWICK ISLAND, DE HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon73
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Fenwick Island, DE

*The Angi rating for Insulation Service companies in Fenwick Island, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Fenwick Island, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on September 17, 2025

Top-Rated Insulation pros in Fenwick Island - Updated Nov 2026

Avatar for MSJ Attic Insulation
MSJ Attic Insulation
5.0(
7
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Fenwick Island, DE and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Did a great job on the insulation however they left a hole in the ceiling when they dropped something on the attic floor. Not a big deal but they need to be careful. Overall, amazing work they do all kinds of insulation and they also install radiant barriers on roof joists. They are reasonably priced and the crew is super friendly, pleasure to work with."
Business card
Poorly insulated
Poorly insulated
In progress
Radaint barrier

+6

43 neighbors recently requested a quote
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Avatar for Dixie's Insulation, LLC
Dixie's Insulation, LLC
4.5(
49
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving Fenwick Island, DE and surrounding areas

Approved

In business since 2006

Free estimates

Small jobs welcome

"Very professional and took time to clean up after they were done. Visit would recommend them to anyone looking for attic insulation"
Installing Insulation and Poly in a crawlspace
Installing Insulation and Poly in a crawlspace
Crawlspace Job
Batts insulation
Batts insulation

+7

Response time3 days
32 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Sagittarius Airseal
Sagittarius Airseal
4.8(
31
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Fenwick Island, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Excellent job. Showed up on time. His crew completed the job in a timely fashion. I would recommend this company to anyone needing insulation work."
Blowing insulation
Blowing insulation
Blowing insulation
Blowing insulation
Blowing insulation

+38

Response time12 hrs
Response rate85%
13 neighbors recently requested a quote
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Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Fenwick Island, DE 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%
135 neighbors recently requested a quote
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Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
517
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Fenwick Island, DE and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Home genius Exteriors did as great job on my siding the crew answered all my concerns when asked. The crew efficient and very nice. Joseph was good as well very communicative. Overall happy with the service."
Windows
Windows
Windows
Windows
Windows

+69

49 neighbors recently requested a quote
Recommended by49%of homeowners
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Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
522
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Fenwick Island, DE and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Home genius exteriors are doing a fine job on my siding very fast and hard working I must say. Joseph is such good young man I appreciate him and Chris love him."
Windows
Windows
Windows
Windows
Windows

+75

Recommended by48%of homeowners
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Avatar for Lawson Home Services, LLC
Lawson Home Services, LLC
4.6(
60
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Fenwick Island, DE and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Professional, friendly and knowledgeable. I will use them next year."
Metal Door Crawlspace Entrace
Turtl Crawlspace Entrance
Attic Air Leaks
Attic Air Sealing
Garage Loft Ready for Sprayfoam

+137

Response time9 hrs
151 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Reilly Home Services llc
Reilly Home Services llc
5.0(
28
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Fenwick Island, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"The pros did a lovely job and they were efficient and job done well"
inspection notes
vapor barrier
modified crawlspace
modified crawlspace
modified crawlspace

+34

Response time7 hrs
Response rate94%
Recommended by3%of homeowners
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Avatar for Rightway Waterproofing Co
Rightway Waterproofing Co
4.4(
236
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Fenwick Island, DE and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"A professional job from start to finish. Al and Don stepped me through the entire process before hand. I’ve had a few storms since then and thankfully not a drop in the basement."
Drilling weep holes
Crawlspace encapsulation
Severe mold problem
Recommended by87%of homeowners
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Avatar for PeakPro Insulation LLC
PeakPro Insulation LLC
4.0(
4
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Fenwick Island, DE and surrounding areas

In business since 2014

Free estimates

Credit card accepted

"I can?t say enough good things about PeakPro Insulation! Before they came out, my attic wasn?t insulated at all and my house constantly fluctuated in temperature. When their team arrived, they introduced me to solar radiant barrier insulation. The difference was noticeable immediately. After the job was done, every room in my house finally felt consistent in temperature, and even my attic felt cooler while they were working up there. On top of that, they left the attic looking beautiful and clean. Highly recommend"
Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation

+2

Response time4 days
Response rate100%
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Showing 1-10 of 36
Insulation FAQs, answered by experts

Pipes in your house can freeze after six hours or so if you lose power and temperatures are below freezing. You can prepare for potential power outages by winterizing your pipes with insulation. Also, whenever temperatures drop below 20 degrees Fahrenheit, turn your faucets on very low and leave them dripping until temperatures rise.

Your house may be cold even if the heat is on because of bad insulation, gaps in doors, small holes pulling hot air from the home, or excess humidity. The heater itself might be malfunctioning. For this problem, you’d need to talk to an HVAC pro. If you have a gas heating system (most do) this should be considered an urgent job as natural gas could be leaking in your home.

Canned spray foam has an R-value of R-3.7 per inch. However, it’s not great for use as insulation. Also known as single-component spray foam, it doesn’t expand as much as two-part types that work for insulating the whole house. Save the canned foam for gaps around doors and windows.

The most energy-efficient windows are double—or triple-pane windows with low-emissivity (Low-E) coatings and gas fills between the panes. These windows reduce heat transfer, prevent drafts, and help maintain a consistent indoor temperature. But if replacing windows isn’t in your budget, pairing your existing windows with insulating window treatments can still make a noticeable difference in home comfort and monthly bills. 

The average U.S. homeowner pays $1,850 to insulate their home. However, the cost of insulation depends on the type, the size of your home, and who does the installation work. 

The cost of foam board insulation depends on whether it's made from expanded polystyrene (EPS) or extruded polystyrene (XPS). EPS has the lower price point, usually costing between $0.25 and $0.50 per board foot, while XPS costs between $0.40 and $0.50 per board foot.

The Fenwick Island, DE homeowners’ guide to insulation services

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

See all articles