*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
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."
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."
+23
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."
Serving Sunnyvale, TX and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
"Dillon and the NxT Level Insulation team provided excellent service for me and my home. Throughout the entire process they’ve showed incredible communication. Their quality of service was top-notch all while offering the best price in my area by a mile! I highly recommend Dillon and his team to anyone who needs insulation work done."
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."
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 !"
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."
Serving Sunnyvale, TX and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"After to job was completed the attic looked amazing. The insulation was perfectly level. I was impressed they did an excellent job cleaning up afterwards."
+15
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!"
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."
+6
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 Dallas, TX.
The cost of blown-in insulation in Dallas, TX varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you in Dallas, TX.
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.
