Get matched with top insulation pros in Lewes, DE

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4.6

(153 reviews)

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Avatar for Dixie's Insulation, LLC
Dixie's Insulation, LLC
4.5(
49
)

Serving Lewes, 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
24 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Sagittarius Airseal
Sagittarius Airseal
4.8(
31
)

Serving Lewes, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"These guys took time from their busy schedule came to my residence on Easter Sunday to give me a price on repairing insulation mess left by previous contractor. They arrived next day and completed the insulation work and did an excellent job at an excellent price. My thanks to Sagittarius air seal thanks again, Michael Duffy."
Blowing insulation
Blowing insulation
Blowing insulation
Blowing insulation
Blowing insulation

+38

Response time12 hrs
Response rate85%
9 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)

Serving Lewes, DE and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"These guys were professional, on time and communicated very well... I would recommend this company to you for all your Spray Foam Insulation needs..."
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 Reilly Home Services llc
Reilly Home Services llc
5.0(
27
)

Serving Lewes, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

Reilly Home Services LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.\n

inspection notes
vapor barrier
 modified crawlspace
 modified crawlspace
 modified crawlspace

+34

Response time11 hrs
Recommended by3%of homeowners
Avatar for Rightway Waterproofing Co
Rightway Waterproofing Co
4.4(
236
)

Serving Lewes, DE and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"If you want someone to do a project in an unfinished basement, I would recommend Right-Way. However, if you want someone to do this work in a room with special conditions, as we did, I would not recommend them. The sales person was very professional and up-front. The workers were very pleasant and cleaned up fabulously after their work. They did a good job with the actual installation. They also demonstrated how to use everything very well. Our complaint is that we carefully explained to everyone that they were working in a finished room with a carpet that was not a basement (that was obvious) and that the walls were going to be deeper after we had insulation installed in the room. However, they installed the sump pump was too close to the wall without enough room for regular 2x4 studs and sheetrock and there was a cleanout that was also too close and stuck up so that we could not replace the carpet. The workers were also told to carefully remove the molding and paneling because we wanted to reuse it. Either they were not very careful or there was some other problem, but there was little we could use. Although someone came back to remove the cleanout and recessed the access to the sump pump, the bottom line is that it isstill partially under the new wall and our contractor (who spoke to the workers before they started jack-hammering the floor) had to do extra work to put the room together. I feel that whoever planned the job didn't think through the fact that we weren't going to use the cleanout in the first place (who would bring a hose into a finished room?) and that you need at least 4" clearance for a 2x4 studded wall. We do now have a room that is a lot more protected from water and everything is back where it should be, but it was a lot more complicated than it needed to be."
Drilling weep holes
Crawlspace encapsulation
Severe mold problem
Recommended by87%of homeowners
Avatar for PeakPro Insulation LLC
PeakPro Insulation LLC
4.0(
4
)

Serving Lewes, 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 rate86%
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Lewes, DE and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Showing 1-10 of 35
Insulation questions, answered by experts

Before starting insulation service projects in Lewes, review local permit requirements, especially if your property is near the waterfront or in a historic neighborhood. Arrange for a home energy audit to pinpoint areas needing better thermal barriers, and check for any HOA guidelines. Inspect attics and crawl spaces for existing moisture or pest issues, and plan your project during milder weather to avoid humidity-related setbacks.

Helpful?

After insulation service projects in Lewes, periodically check attic and crawl space insulation for settling or moisture, especially after seasonal storms. Track your energy bills to confirm improved efficiency, and use a hygrometer to monitor indoor humidity. Schedule annual inspections for signs of pests or water intrusion, and adjust your HVAC settings as needed to maintain optimal comfort and air quality.

Helpful?

Completing insulation service projects in Lewes significantly boosts home comfort by stabilizing indoor temperatures during humid summers and chilly winters typical of the coastal climate. Upgrading attic insulation and crawl space barriers helps prevent moisture intrusion, reduces the risk of mold, and dampens outside noise. These improvements not only create a quieter, healthier environment but also support lower energy usage and consistent comfort throughout the year.

Helpful?

In Lewes, signs that insulation service projects may need to be redone include persistent drafts, uneven room temperatures, or increased energy bills. Look for visible mold, musty odors, or damp spots in attics and crawl spaces—common in coastal homes. Insulation that appears compressed, sagging, or is over 15 years old may no longer provide an effective thermal barrier and should be reassessed.

Helpful?

In Lewes, hidden costs during insulation service projects often arise from addressing moisture issues, upgrading attic ventilation, or installing vapor barriers due to the damp coastal climate. Additional expenses can include pest remediation, electrical adjustments, or sealing air leaks discovered during installation. Homes with multiple stories or tight crawl spaces may also require extra labor for safe removal and replacement of old insulation.

Helpful?

The Lewes, DE homeowners’ guide to insulation services

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