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TRUSTED BY SUNNYVALE, TX HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon206
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Sunnyvale, TX

*The Angi rating for Insulation Service companies in Sunnyvale, TX 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 Sunnyvale, TX 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 January 15, 2026

Find Insulation pros in Sunnyvale

KCR Insulation
4.9(
81
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Enrique, his brother Alfredo and the rest of the team were very professional and did a great job. Would highly recommend them for an insulation project."
Response time10 hrs
11 neighbors recently requested a quote
Recommended by100%of homeowners
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NxT Level Insulation
5.0(
8
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInsulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Last summer, even with the AC running constantly and the thermostat set at 72 degrees, the temperature inside the house would reach 80 degrees or higher. This summer is much better; the thermostat is set to 70 degrees, and the house actually stays at 70. Our electric bills are also reflecting this improved energy efficiency. Thank you Dillon, NxT Level Insulation for the outstanding work and exceptional customer service."
Additional Photos
9 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Harsin Energy Services - The Energy Savers
Harsin Energy Services - The Energy Savers
4.7(
167
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"They did what they said they would in a very timely manner. The whole house insulation job was fast, neat, and very professional."
An energy Efficient attic, with radiant barrier.
A good insulation job. R-38. Formaldyhide free.
Radiant barrier installed. Now insulation.
old can lights waist $20 a year. I can fix that.
Attic view. They are why you have so much dust.

+23

Response time8 hrs
22 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Remington Insulation and Ventilation
Remington Insulation and Ventilation
5.0(
25
)
Blown-In Insulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"Top notch customer service.  They explained to me line by line all the rebates I can get through the utility company.  The biggest being the green energy tax credit that was about to expire by the end of the year if I were to install a solar attic fan through them, which I had no idea.  The rebates and credits really help me make the decision to get it done now.  So glad we did. Technicians were on time, in and out clean and efficient.   The solar attic fan they installed made a huge difference in our attic.   They were able to retrofit it over our existing vent hole which was very nice because we didn't have to cut a new hole in our roof.  All and all just wonderful experience.  The new insulation made our home much more comfortable now."
Added R50
Added R50
Solar attic fan
Response time4 hrs
Response rate100%
3 neighbors recently requested a quote
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Fulkrum Operating Company, LLC
5.0(
28
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"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 !"
76 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Koala Insulation of Dallas
Koala Insulation of Dallas
4.8(
15
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"They had fair pricing. They were on time, efficient, communicated well, and cleaned up well before leaving. Very nice people to hire for insulation installation."
Professional, Friendly, Knowledgeable
Bluffview Insulation Upgrade
Response time7 hrs
37 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Attic Construction
Attic Construction
4.4(
86
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"If you just need an attic insulated, then these guys offer a replete program."
Dirty attic
Clean attic
Insulated attic
Response time6 hrs
Response rate95%
7 neighbors recently requested a quote
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Avatar for Climate Doctors
Climate Doctors
4.8(
3,288
)
Blown-In Insulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Credit card accepted

"We had two separate appointments, one for duct cleaning and one to add insulation. Both crews were professional, clean, efficient and polite. They were all responsive to questions and feedback. I will definitely hire Climate Doctors again in the future and will have no problems referring them to friends, family, co-workers, and my Real Estate clients!"
Response time1 day
Response rate95%
16 neighbors recently requested a quote
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Avatar for Energy Attic
Energy Attic
4.3(
34
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"Chris Gage at energy attic is very professional and straight forward I appreciate the great service I highly recommend this company."
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
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Showing 1-10 of 232
Insulation questions, answered by experts

Yes, you can install insulation over ductwork, and doing so can save you money. Without insulation, the HVAC unit must work harder to force warm or cool air around the home, and once the air reaches the vent, it may not be the correct temperature. Insulating HVAC ducts makes your system work more efficiently, saving you money on heating and cooling bills.

Blown-in insulation works, but only for unfinished attics. Also, it isn’t the longest-lasting nor the most effective option. For better options, look into spray foam insulation or natural fiber batts. They typically have a longer lifespan, better heat resistance, and stronger sound-proof abilities. Spray foam insulation costs about $1.25 to $1.50 per square foot, but can go up to more than $4 per square foot. Fiber batt pricing varies depending on the material.

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

Ductwork should be wrapped in insulation in certain locations. This includes unconditioned interior parts of the home, such as attics, crawl spaces, basement ceilings, and between floors. Duct joints should also be insulated since they're more likely to leak air than other parts of your system. Building codes in some areas also require ductwork to be insulated.

Reduces energy costs, improves comfort, and prevents ice dams in winter.

The Sunnyvale, TX homeowners’ guide to insulation services

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

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