How do I add insulation to existing walls?

• <div><p>If you need to insulate behind finished walls, the best option will likely be to have an insulation professional install <a href="https://www.angi.com/articles/blown-in-insulation.htm">blown-in insulation</a>. The installation requires small holes cut in your wall, after which the installer can blow loose-fill insulation into the void. After the installation, you’ll have minor drywall patching, which shouldn’t cost more than <b>$100</b>. Compared to ripping down the existing drywall, using a different type of insulation, and replacing and finishing the drywall, this should save you hundreds or even thousands, depending on the size of the room you’re insulating.</p></div>

Can I insulate my walls without removing drywall?

• <div><p>It is possible to insulate your walls without removing drywall, but it’s not a good idea to attempt the work yourself. A professional can use blown-in insulation or spray foam insulation to fill wall voids without opening up the walls, and the option they use typically depends on your climate and whether or not there’s insulation in your wall already that can remain in place. <a href="https://www.angi.com/articles/spray-foam-insulation-cost.htm">Spray foam insulation costs</a> more and isn’t always a viable option, but it’s a better insulator. Call in an expert to help decide which is right for you.</p></div>

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Verified Reviews for Insulation Service pros in Milford, DE

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

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Last update on November 29, 2025

Reviewed in August 2024
Terrible service. Start this job last fall. The scope of the project was to check the duct work and even the temperatures through out the house. Four trips out, thre different people and now I have insulation coming out my ceiling vents and falling on the furniture.
AROUND THE CLOCK HEATING & AC
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Reviewed in April 2024
Very good one day to remove old insulation and another to spray new insulation
Dixie's Insulation, LLC
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Reviewed in March 2024
I recently had a EV charger installed for my 2023 Fisker Ocean by triple J electric, and I couldnâ t be happier with the service. The electrician John was very efficient and explained everything clearly throughout the process. He arrived on time completed the insulation quickly and insured...
Triple J Electric
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Reviewed in January 2024
Edgar listened to my request to perform the tasks of insulating the HVAC ductwork and hotwater lines before installing the R30 batts in the joists. He did a good job in cleaning up the fallen insulation pieces from the floor, but there was still residual insulation dust on the floor and on my...
Sagittarius Airseal
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Reviewed in December 2022
When Mr. Magadan saw it was only a small area of damaged insulation in the crawlspace, he said he would come back next week and install a new piece for free. I told him I'd be more than happy to pay him, but he insisted he likes to give back when he can. A very nice gentleman. It was so...
Dixie's Insulation, LLC
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Reviewed in May 2021
Aaron and Sean did an excellent job getting all of the tasks complete. They had to squeeze into a tight attic space filled to the brim with insulation to run the electric to the ceiling fan. They were real troopers. They were friendly and went above and beyond to clean up after the jobs. I will...
Expert Wire Electrical Services
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Reviewed in November 2019
Dakota did an excellent job. He cleaned and checked my heating and ac systems. There was some insulation needed on the conduit piping at the air handler. He wrapped it in pipe insulation and even climbed up in the attic and checked the vent boot to make sure it had no leaks! Very professional...
Fogel Services Inc
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Reviewed in December 2016
They were extremely competent, on time and prices about what it would cost to buy the insulation at Lowe's or Home Depot
Delmarva Insulation
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Reviewed in September 2014
Had a very bad experience with Steve Era- nasty- pushy and dumb. the insulation was nice and service person was great.
Guardian Protection
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Reviewed in December 2013
Horrible. This first job that this company did in October 2013 was to replace a cracked window in a porch. That went fine except for the fact that they don't call you to let you know when they're ready to replace the window. The customer has to call them. However, I have since learned that...
Premier Glass & Screen Inc
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Find Insulation pros in Milford

Dixie's Insulation, LLC

5.00(

)

•Approved Pro

Dixie's Insulation, LLC

5.00(

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

32 local quotes requested

In Business Since 2006 About Us We are a small family-owned business that has been servicing the Delmarva Peninsula and beyond since 2007. We insulate residential areas using insulation of your choice, options include: batts insulation, spray foam, blow insulation, foam boards, etc. We service crawlspaces, offer insulation removal services, caulking services, and more. Please call us if you have any questions and we are more than welcome to help!

"Very good one day to remove old insulation and another to spray new insulation"

John O on April 2024

"Very good one day to remove old insulation and another to spray new insulation"

John O on April 2024

Get matched with top insulation pros in Milford, DE

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Blown In Insulation Install or Upgrade

Batt, Rolled or Reflective Insulation Install or Upgrade

Spray Foam Insulation Installation

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Verified Reviews for Insulation Service pros in Milford, DE

Find Insulation pros in Milford

Dixie's Insulation, LLC

Dixie's Insulation, LLC

Takedown Pest Control, LLC

Takedown Pest Control, LLC

Big Day Painting & Home Improvement Services

Big Day Painting & Home Improvement Services

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Pro-Cut

Pro-Cut

Handyman Insulation

Handyman Insulation

All Around Maintenance

All Around Maintenance

InsulTech LLC

InsulTech LLC

Green print insulation

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Silver Lake Restoration

Silver Lake Restoration

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