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Find Insulation pros in Felton

Avatar for MSJ Attic Insulation
MSJ Attic Insulation
5.0(
6
)

Serving Felton, 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

41 neighbors recently requested a quote
Avatar for Dixie's Insulation, LLC
Dixie's Insulation, LLC
4.5(
49
)

Serving Felton, 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
34 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)

Serving Felton, 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%
121 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
509
)

Serving Felton, DE and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"The Crew was informative, pleasant, and easy to communicate with. Whenever I brought up an issue, they addressed it and made the necessary corrections. Joseph Stanley was Prompt, professional, and maintained great communication throughout the process"
Windows
Windows
Windows
Windows
Windows

+69

6 neighbors recently requested a quote
Recommended by49%of homeowners
Avatar for Lawson Home Services, LLC
Lawson Home Services, LLC
4.6(
60
)

Serving Felton, DE and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"He was professional, arrived in a timely manner, efficient and affordable. There was a $400.00 difference between Lawson and the only other bidder."
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
Avatar for Total Home Performance, LLC
Total Home Performance, LLC
4.8(
17
)

Serving Felton, DE and surrounding areas

In business since 2009

Free estimates

Offers commercial services

"They are a very professional organization. Their workmen do a very good job and an excellent job of cleaning the area before they departed the job site. I can tell immediately that the extra insulation they placed in the attic is doing its job by reducing our utility bills."
Crawl Space Encapsulation w/ AprilAire Dehu
Crawl Space Encapsulation
Crawl Space Access
Crawl Space Access Door
Crawl Space Encapsulation

+11

Response time2 days
Recommended by88%of homeowners
1st State Pest & Home Services, LLC
3.8(
112
)

Serving Felton, DE and surrounding areas

In business since 2010

Free estimates

"When Mike did the free estimate, he told me it wasn't the walls where we were losing heat. It was my crawl space. Also, totally above the work of insulating the space, he noticed an air duct was disconnected. He got the straps needed to fix the vent and didn't charge me. Excellent customer service. He was neat, on time, and quick with the insulation."
 old temp vent wide open
 temp vent
 old vent
 new vent open and closes itself
 raccoon trapped

+3

Recommended by88%of homeowners
Showing 1-10 of 38

FAQs for insulation service projects in Felton, DE

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 Felton, DE 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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