Top-rated insulation pros.

Get matched with top insulation pros in Delaware City, DE

Enter your zip and get matched with up to 5 pros

Need a pro for your insulation service project in Delaware City, DE?

Select your specific project to find the pro for you.

TRUSTED BY DELAWARE CITY, DE HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon80
    Verified insulation services reviews

Find Insulation pros in Delaware City

Avatar for E S G, Inc.
E S G, Inc.
4.7(
126
)

Serving Delaware City, DE and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"They showed up on time and the work were done in a timely manner. They cleaned up and left no mess. The insulation really helped to warm up the shed."
Freshly blown insulation with Baffles installed
Insulated foundation walls
Replacing damaged duct with new insulated duct
Newly installed crawl space access door
Insulated air tight pull down stair cover

+4

Response time12 hrs
Response rate95%
2 neighbors recently requested a quote
Avatar for Master Attic, LLC
Master Attic, LLC
4.8(
60
)

Serving Delaware City, DE and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Master Attic removed my old and rodent infested insulation, thoroughly cleaned out all the junk in my attic, vacuumed all the dirt, debris, and rodent feces, sealed all air leaks, installed rodent-proof cages around any entry points to the attic, sanitized the entire attic space and installed new insulation throughout. Francisco and his crew were fantastic! Great job by Master Attic! Thank you!"
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 time1 day
19 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
21
)

Serving Delaware City, 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
130 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for MSJ Attic Insulation
MSJ Attic Insulation
5.0(
4
)

Serving Delaware City, DE and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

MSJ Attic Insulation is a professional insulation and energy-efficiency company specializing in attic insulation, radiant barrier installation, insulation removal, air sealing, and attic access solutions. We focus on improving home comfort, reducing energy costs, and protecting properties through high-quality workmanship and reliable service. Our team takes pride in honest recommendations, clean installations, and helping homeowners create healthier, more energy-efficient homes.

Business card
Poorly insulated
Poorly insulated
In progress
Radaint barrier

+6

13 neighbors recently requested a quote
Avatar for Orkin
Orkin
New to Angi

Serving Delaware City, DE 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

Avatar for USA Insulation of Philadelphia
USA Insulation of Philadelphia
4.3(
49
)

Serving Delaware City, DE and surrounding areas

In business since 1977

Free estimates

Credit card accepted

"In the attic, we had wooden slats that covered the floor so they had to go under the floorboards. Although we were told by the salesman that there would always be a person on the other side of the wall to check for problems, the second guy was not watching and they blew a hole in the ceiling of the bedroom ( see pictures). They assured us that they would fix the hole, spackle it and repaint the ceiling. They did spackle the hole but only painted the area that they fixed - not the whole ceiling. And they did a lousy spackling job. We had to get someone else to smooth out the spackle and repaint the ceiling. We could have pushed to get them to fix the ceiling but it was late on the last day and we wanted the job done. As for the gel on the outside, the truck broke down due to the heat of the day and it took 3 days to finish the rest of the job including fixing the ceiling and the inside walls. Although the salesperson, did a first investigation of the house and said it could all be done from the outside, the workers found that one bedroom was covered in concrete so they had to drill from the inside of one of the bedrooms leaving many holes to be spackled. This time it was not so bad and we were able to sand and repaint that bedroom. But the workers could have done a better job of cleanup of the sparkle. It was all over the baseboard and the rug and we had to use rags to clean it up. We realize that things happen. And maybe we were too hopeful based on the salesman's pitch. But we would rather have had the salesperson tell us the truth about the possibility of drilling holes in the inside of the house even though he did a thorough inspection. All in all, we are hoping that insulating our house will save us a lot of money in heating costs. The manager was very accommodating, we saved some money by paying with a check vs a credit card. The workers were very nice and the lead person was very knowledgeable. Any renovation is stressful. We would probably recommend them because now we know what to expect. This company was recommended to us by a number of people. We have no doubt that the product itself is excellent. For that reason, we expected it all to go smoothly. It did not. Everything that could go wrong, basically did. It all got fixed but ... We did not plan for a hole in the ceiling, the truck breaking down and go into the shop to fix the problem with the gel overheating and not coming out of the hose fast enough, the concrete in one of the bedrooms that meant that all the holes had to be drilled on the inside of the bedroom and we had to repaint. So for those reasons, we are giving them a rating of fair. We hope your experience will be a lot better than ours !!"
Recommended by92%of homeowners
...
Showing 1-10 of 69
Insulation questions, answered by experts

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

The life span of insulation is between 20 and 100 years. At that time, existing insulation can fall victim to gravity, resulting in compression, which reduces its insulating protection or R-value. If you can't simply add more insulation over the existing material, removing the old to increase the effectiveness of the new can reduce your energy bills and make the project worth the time and money investment.

Polyisocyanurate foam, or polyiso for short, has the highest R-value per square inch: 6.5 to 6.8. Polyiso is a rigid foam that comes with a reflective foil on both sides to serve as a radiant barrier. Given its high R-value, rigid foam is usually meant for foundations and basement walls.

Insulating an unheated garage can still be worth it. For instance, insulating an attached garage can help with heat loss from your house in general, and it can also make it easier to store electronics in your garage without worrying about them being exposed to extreme temperatures.

If you use your detached garage as a workspace, insulation can still make a difference. Plus, you can use space heaters and a window unit AC to help condition the space while you work without installing heating.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

The Delaware City, DE homeowners’ guide to insulation services

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