*The Angi rating for Insulation Service companies in Delaware City, 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 Delaware City, 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 May 26, 2026
Serving Delaware City, DE and surrounding areas
Approved
In business since 2006
Free estimates
Small jobs welcome
"Handyman Insulation did a great job, #1 in my book."
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."
+4
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!"
+106
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..."
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.
+6
Serving Delaware City, DE and surrounding areas
Approved
In business since 1976
Free estimates
Credit card accepted
"Provided excellent recommendations and completed the work in a satisfactory manner."
Serving Delaware City, DE and surrounding areas
Approved (Corporate)
In business since 1928
Free estimates
Credit card accepted
"Came out promptly - same day, on a Saturday, to remove a hornets nest because I have a bee sting allergy. Very courteous"
Serving Delaware City, DE and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Friendly Knowledge Answered all questions"
+137
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
Serving Delaware City, DE and surrounding areas
In business since 1977
Free estimates
Credit card accepted
"Unfortunately, when the techs started the process, the insulation already in the walls prohibited the addition of the foam. I cannot begin to tell you how disappointed I was, as the job they had done on our tiny addition was remarkable. However, isn't it wonderful to have a company tell you the truth!"
When choosing a professional insulation installer, consider asking these questions to determine the best fit.
Will you address air leaks in my house?
Can you provide an R-value (heat resistance) fact sheet?
What kind of insulation will work best for my home?
How do you handle signs of a water leak?
Are you licensed and insured?
Can you provide customer references?
The best type of insulation for your home depends on what you need, so the answer will depend on your specific situation. If you’re building a house, structural panels are easy to install during the building process in addition to being the most energy efficient type. If you live in a warm climate, reflective insulation may benefit you more as it costs less than other insulation types. And for standard attics, loose-fill, spray foam, or blown-in insulation work well.
If you plan to heat or cool your garage, you’ll need to insulate the garage ceiling. Insulating your garage ceiling will make your garage much more energy efficient and save on heating and cooling costs. Not only does insulation make your garage more energy efficient, it helps reduce noise and can extend the life of your garage roof. You can use fiberglass, cellulose, mineral wool, or spray foam insulation for this project.
In some cases, you may not have enough insulation to properly regulate your home’s temperature. Watch for a few signs your home needs more insulation, such as:
High heating and cooling bills
Uncomfortable room temperatures
Ice dams on the edge of your roof
Roof leaks
Cold floors and walls
Freezing pipes
Temperature fluctuations
Visibly low insulation
Noise problems
Pest problems
On average, insulating an attic costs about $2,500, ranging from $1,500 to $3,500, depending on the insulation type, amount, and your attic’s accessibility. Additional cost factors include sealing air leaks, removal or replacement of insulation, and inspections. Types of insulation include:
Blown-in: $1–$4 per square foot
Spray foam: $2–$5 per square foot
Batt: $2–$4 per square foot
Structural insulated panels: $4–$7 per square foot
Loose-fill: $2–$5 per square foot
Reflective: $0.50–$1.50 per square foot
From average costs to expert advice, get all the answers you need to get your job done.
New insulation makes your home more comfortable and boosts energy efficiency. Use this guide to budget for insulation installation costs in Philadelphia, PA.
The cost of blown-in insulation in Philadelphia, PA, varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
Attic insulation removal costs in Philadelphia, PA, vary based on multiple factors, including why you're removing it and how easy it is to complete the task.
What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.
Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.
There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.
