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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon83
    Verified insulation services reviews

Top-Rated Insulation pros in Duncanville - Updated Nov 2026

Avatar for Milo Insulation of East Texas
Milo Insulation of East Texas
5.0(
80
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Duncanville, TX and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"My wife and I were very pleased with the team that came out to install the MILO Insulation at our home. We found them to be very professional and courteous. They worked quickly and quietly to install the MILEX insulation and cleaned up after themselves. Overall it was a fine job. We would highly recommend MILO Insulation of Texas â Denton."
MILEX Transformation
MILEX Transformation
MILEX Transformation
MILEX Transformation
MILEX Transformation

+2

Response time2 days
5 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for A Better Attic
A Better Attic
5.0(
8
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Duncanville, TX and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Cleaned out the old ..sanitized the attic and added much needed insulation. Along the way pointed out several spots on the roof that need addressing outside the attic. Were friendly... efficient and respected my dwelling and my belongings...they absolutely are SKILLED craftsmen that know what they are doing and my puppies loved their visitors"
Before and After
Before and After
Before and After
Before and After
Before and After

+2

Response time1 day
Response rate97%
Recommended by100%of homeowners
Fulkrum Operating Company, LLC
5.0(
30
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Duncanville, TX and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"My son recently purchased an older home that had very little attic insulation. After Rob's team finished adding fiberglass insulation the A/C turned off almost immediately and the home remained at 74 degrees even though it was over 100 that day. I was very impressed and plan to have them come inspect my attic next !"
36 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Attic Construction
Attic Construction
4.4(
86
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Duncanville, TX and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"The upfront explanation and advice were very honest and the work done was superb. The work was planned to be done in one day which they did including all the cleanup. I will recommend them to anyone needed insulation work in the attic."
Dirty attic
Clean attic
Insulated attic
Response time6 hrs
Response rate96%
23 neighbors recently requested a quote
Avatar for North TX Insulation
North TX Insulation
5.0(
7
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Duncanville, TX and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"It was great! Jorge & his partner were very prompt, courteous, and efficient. I don’t have a really large attic but 3 other big companies quoted over $4000 to install insulation in my attic. North Tx Insulation did 13 inches of new blown in insulation for $1000.00. They were neat & in and out within an hour. I would highly recommend them!"
Attic upgrade
Insulation blow
R38 blown in
Insulation blow
Attic blown in

+6

6 neighbors recently requested a quote
Recommended by28%of homeowners
Avatar for Energy Attic
Energy Attic
4.3(
34
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Duncanville, TX and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"They had a cancellation and moved my appointment up a day; that pleased me as we had a cold front blow in and temps were in mid-30's. Before they were finished I noticed my house was noticeably quieter. They worked for 1.5 hours and were finished with the cleanup. Since then I have been able to lower my thermostat 6 degrees and it's warmer than before. Thank you"
Best Fiberglass installers in the world!
100 yr old house Foil and Fiberglass
Foil and Fiberglass
Tall Attic Foil and Fiberglass
Radiant Barrier and Fiberglass Insulation

+6

Response time2 days
7 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Climate Doctors
Climate Doctors
4.8(
3,290
)
Blown-In Insulation - Install or Upgrade

Serving Duncanville, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Credit card accepted

"I can't thank these guys enough! They gave us a great deal and went above and beyond what we had hired them to do. They are going to come back out and take care of a few other things that they can do besides insulation. I can't recommend them enough. They are very punctual, professional, and very friendly. Even our dogs approve of them! Even before they were finished, I already noticed a VERY big difference in the temperature in the house. Instead of the AC running all day and it being 6-10 warmer than I prefer, it stays at the temperature I want it. The AC runs 1/4 of the time instead of running all day."
Response time1 day
Response rate100%
16 neighbors recently requested a quote
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Insulation FAQs, answered by experts

Yes, you need a 1.5-inch to 2-inch air gap in a cathedral ceiling to allow proper air flow and prevent cathedral ceiling venting problems. This amount of airspace allows warm, moist air to properly leave your ceiling to avoid moisture build-up and other issues that put your home at risk. You can also add an air vent for extra air flow.

Yes, doggie doors, like all entrances, can let both hot and cold air into your home. However, as with any door in your house, you can take steps to weather-strip your pet's entrance to prevent air leaks.

These two types of foams are similar chemically, but they are applied in a much different way and each has its own pros and cons. Spray foam can only be used if the area where you will be installing the installation is wide open and easy to access. Injection foam should be used where it's cost-prohibitive to remove the walls that are placed over the insulation. Spray foam is a much less expensive process and requires less expertise. 

At a minimum, blown-in insulation lasts 20 to 30 years. Cellulose and sheep’s wool come from natural materials, so they likely max out at around 30 years. Fiberglass and rockwool feature artificial materials that boast lengthy lifespans, up to 50 years, or even longer in some cases. As always, this timeline assumes you don’t run into any issues, such as flooding or mold, that shorten the lifespan.

Monolithic slabs don’t require insulation, but many homeowners choose to have their contractors install insulation under the slab during construction. This can help improve home efficiency even more and keep indoor temperatures more stable. Slab foundations are more energy-efficient than uninsulated crawl spaces and basements, and insulated slab foundations are more energy-efficient than insulated crawl spaces and basements.

The Duncanville, TX homeowners’ guide to insulation services

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