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TRUSTED BY CASTLE HILLS, TX HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon314
    Verified insulation services reviews

Top-Rated Insulation pros in Castle Hills - Updated Nov 2026

Avatar for TEXAS SHIELD INSULATION, LLC.
TEXAS SHIELD INSULATION, LLC.
4.9(
14
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Castle Hills, TX and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"We couldn't be more pleased with the added insulation in the attic above the garage. Only downside is that it's better done than the rest of the attic! The rest of the work replacing the insulation in water-damaged areas went very quickly. We will likely be bringing them back to do the rest of the attic."
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+5

Response time1 day
9 neighbors recently requested a quote
Recommended by91%of homeowners
Home Comfort Insulation
4.6(
45
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallSpray Foam Insulation - Install

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."
Response time10 hrs
Recommended by92%of homeowners
Avatar for South Texas Insulation
South Texas Insulation
4.8(
14
)
Blown-In Insulation - Install or Upgrade

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."
R38 Mid Floor for sound
Party Walls R11 batt
R38 Ceiling Batt and Bibs walls blown
Response time2 days
15 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for AHC Spray Solutions
AHC Spray Solutions
5.0(
18
)
Injection Insulation - InstallSpray Foam Insulation - Install

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"
Open Cell Foam
Open Cell Foam
Open Cell Foam
Open Cell Foam
2" Closed Cell Foam Sub-floor

+15

Response time1 day
Recommended by100%of homeowners
Avatar for Al's Duct Cleaning Service
Al's Duct Cleaning Service
4.8(
53
)
Injection Insulation - Install

Serving Castle Hills, TX and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"This was such A fantastic experience I can t get it across into the words of how great Als customer service and service was during, before, and after my duct cleaning appointment Trent. They are so professional, they were so fast, they came same day, they actually responded to me when I called Al at 6 AM and he could not have been nicer to me when I was freaking out about what to do about the sludge I found in my air ducts. Not only did they get my air ducks extremely clean, but they were also patient with me, and were extremely affordable. this is the company that you should be hiring hands-down don t hire anyone else. Your maintence at your apartment complex isn t trying when they clean your air ducts. Trust me. Mine lied and told me they had when they didn t bcevshe they don t have to clean them. Just call als air duct cleaning service bc it was one of the best experiences I ve ever had with a handyman service."
Response time4 hrs
4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Sigma Air Heating & Cooling
Sigma Air Heating & Cooling
5.0(
10
)
Blown-In Insulation - Install or Upgrade

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!

New 73 HVAC systems
HVAC Installation
The Sigma Family
27 neighbors recently requested a quote
Avatar for Insulation Commandos North San Antonio
Insulation Commandos North San Antonio
New to Angi
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving Castle Hills, TX and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

Having the appropriate insulation is the first step in your battle plan to keep your space as warm, cozy, and energy-efficient as possible. With so many different types of insulation materials on the market, finding the right fit for your needs is critical. That’s where Insulation Commandos can help! Our mission is to provide top-notch insulation services across the country.

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1 neighbors recently requested a quote
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Insulation FAQs, answered by experts

You should not use spray foam insulation in several specific areas. Avoid applying it in spaces exposed to high temperatures, such as near electrical boxes or recessed lighting, unless the foam is specifically rated for such use. Applying foam near electrical boxes can damage the wiring, and using it too close to lightboxes or recessed lights creates a potential fire hazard. Additionally, do not use spray foam in areas prone to shifting or movement, as this can lead to cracks and gaps in the insulation. Finally, open-cell foam is unsuitable for use below ground or in areas exposed to moisture because it can absorb water, which compromises its insulating effectiveness.

No, 55 degrees Fahrenheit is not too cold for a house, as it’s a temperature that will keep your pipes and appliances from freezing. Well-insulated homes can even go to 50 degrees, but check with an HVAC pro before opting for such a low temperature. Stick to 55 degrees to be on the safe side.

Expect your home insulation project to take between five and 12 hours to complete on average for batts or boards and two to five hours for spray foam or blown-in insulation. It might take longer if you need to remove your home’s existing insulation, you have a higher-than-average square footage, or accessibility is limited.

The best type of attic insulation depends on where you live, your budget, and what stage of construction the attic is in. For example, if you're building a house, then structural insulated panels are a worthy investment since they're easy to install during construction and they're the most energy-efficient type of insulation.  

Additionally, if you live in a very warm climate, then you can potentially save quite a bit of money by opting for reflective insulation, which is more affordable than comprehensive insulation but doesn't work well for cool climates. Blown-in, loose-fill, and spray foam insulation are all great options for attics in moderate climates.

Insulation provides additional protection for your tankless water heater. Even if the unit is installed inside the house, it’s still a good idea to wrap the unit up with insulation batts, especially if you live in cold climates. For outdoor units, you can build an insulated box around the tankless water heater for freeze protection.

The Castle Hills, TX homeowners’ guide to insulation services

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