4.5 
314 *The Angi rating for Insulation Service companies in Castle Hills, 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 Castle Hills, 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 November 04, 2025
Serving Castle Hills, TX and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"Insulated above garage. Arrived at the scheduled time. Cleaned after completed work. Would recommend and would use them again"
+5
Serving Castle Hills, TX and surrounding areas
Approved
In business since 2013
Credit card accepted
Offers commercial services
"The Lowest of 5 competitive quotes for blown in fiberglass insulation. Showed up on time and accomplished the job as stated. Employees were friendly, professional and assisted in completing CPS rebate forms."
Serving Castle Hills, TX and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"He asked that I call him in a month and give him an update on how my soundproofing plan was working. I've had my outside noise problem for a very long time, and after talking to Andrew, I now have a very good plan! It was a relief learning what things I could do to solve my noise problem. My highest compliments to Andrew Horvath for his patience and guidance. Thank you. Bruce Scarborough"
Serving Castle Hills, TX and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Good company for my insulation job. They were on time and on schedule. Careful while working on attic to avoid damage to ceiling. Clean, during and after work completed."
Serving Castle Hills, TX and surrounding areas
Approved
Super Service Award Winner
In business since 1995
Free estimates
Warranties offered
"Nick is very knowledgeable and informative about home insulation and has came up with a way to solve the problem when it comes to insulation. Highly recommend going with Texas Pro Insulators."
+3
Serving Castle Hills, TX and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"Exceptional company and outstanding product and service! Allen gave us a great estimate to put spray foam in the attic over our garage and along the walls into our home - outstanding work - professional timely and cleaned up nicely after their work - exceptional. Thanks John K"
+15
Serving Castle Hills, TX and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"Excellent attention to detail. Also does A/C install and repair work. Will have them do all of my preventative maintenance, as well as install insulation over my garage ceiling."
Serving Castle Hills, TX and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"They provided an additional product at no cost"
Serving Castle Hills, TX and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"I had Ben come back out again and he did our fireplace which now absolutely looks like new. We had asked our property manager when we were stationed away to ensure this and other tasks got done. The property manager apparently never did this task. Dave arrived on time and worked diligently - he also took the time to educate me on all the functions and how he cleans (the process, the materials, and the safety checks) - which made it a class + a cleaning. It was simply awesome. His efforts, timeliness and great prices are once again truly appreciated. During this visit he also streamlined my dryer vent to remove the multiple 90s and improve the airflow. Talent, great price, and hometown service - who could ask for more."
+29
Serving Castle Hills, TX and surrounding areas
Approved
In business since 1994
Emergency services offered
Warranties offered
Founded in 1994, Sigma Air began as a small, family-led venture in San Antonio, Texas. Over the years, it has grown into one of the most respected HVAC providers across the state, specializing in residential, multifamily, and commercial HVAC solutions. For decades, Sigma Air has led the way in HVAC excellence. Now, we're bringing that same quality and commitment to homeowners across Greater San Antonio. Whether you are dealing with a broken AC, looking to upgrade your system, or need fast emergency help, we've got your home covered. Let's Bring Comfort Home! Just bring us a written quote from a reputable, licensed company within the last 30 days, and we'll beat it! *Cannot be combined with other offers*. Simply click the button below to schedule an appointment, and one of our staff members will reach out to show you how to save money!
From average costs to expert advice, get all the answers you need to get your job done.
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
Crawl space insulation costs vary by size, insulation type, and material. Read this guide to learn how much your crawl space insulation could cost.
Find out the average pipe insulation cost, including material and labor prices, plus tips to save money on your project.
Learn how to decide if your home needs dryer vent insulation to protect your vent from drafts and moisture that can make your energy usage less efficient. Poorly ventilated dryer vents also increase mold risks!
Removing old insulation may be necessary for upgrading your insulation. Keep reading to see if you should remove old insulation before adding new insulation.
If your home’s temperature is uncomfortable or your energy bill is spiking, you should check your insulation. We'll help you find out if you should replace it.
