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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
7 neighbors recently requested a quote
Recommended by91%of homeowners
Fulkrum Operating Company, LLC
5.0(
32
)
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 by65%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
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%
25 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
9 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%
10 neighbors recently requested a quote
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Showing 1-10 of 275
Insulation FAQs, answered by experts

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.

There are many ways to keep your house cool without central air. In fact, ductless mini-split AC systems are a solid alternative to central AC for situations when you can’t install ducts in your home. If you’re looking for a more budget-friendly cooling solution, consider using window AC units or portable air conditioners.

In nearly all cases, you are required to install a vapor barrier in your crawl space. However, local regulations will change based on the local climate and the crawl space's susceptibility to moisture. Even if a vapor barrier is not legally required, it is often a good idea to keep your crawl space dry.

Spray foam insulation doesn’t do well around heat sources. Therefore, You can use spray foam insulation to seal around HVAC boots that penetrate through the drywalls or around where wrapped ducts connect to the boots, but we don’t recommend using spray foam insulation to encapsulate your air ducts. Spray foam insulation on air ducts is also less effective compared to duct wraps.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

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.