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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 Koala Insulation of Texas Hill Country
Koala Insulation of Texas Hill Country
5.0(
16
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallInjection Insulation - Install+1 more

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"
Batt Rolled In insulation
Spray Foam Insulation
Blown-In Insulation
Tiny home
Response time1 day
Response rate98%
55 neighbors recently requested a quote
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

"They recommended that I did not need roof insulation. Very honest and professional opinion and advised if they performed the insulation (since he determined my insulation was very good), I would not realize any benefit. I really appreciated that honest evaluation. Would recommend them to anyone needing insulation; they are not a fly by night firm and in explaining what they do and how they do it, separate themselves from the rest of the pack."
R38 Mid Floor for sound
Party Walls R11 batt
R38 Ceiling Batt and Bibs walls blown
Response time2 days
13 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

"Very pleased with the customer service and the quality of work done by AHC Spray Solutions. The owner, Clint, was on time for his initial appointment and was efficient in evaluating the job and providing an immediate estimate to complete the work. The workers showed up to do the job on time and did the prep and post-job cleanup very well. I am pleased with the work and recommend AHC Spray Solutions to anyone needing spray foam insulation work. If I need another spray foam insulation job, I will call AHC."
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

"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."
Response time4 hrs
4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Clean Air Pro Services
Clean Air Pro Services
4.6(
53
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Castle Hills, TX and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"They did an excellent job. The before and after pictures really showed me what they did. They replaced the ducts that were damaged for less than what my a/c company was going to charge and replaced my insulation and did a lot more work as well. I am very pleased with them."
swamp went into the flue line down to the fire box
Bacteria Found in the plenum box
Attic space before
Cap was not properly covered or sealed.
Another angle of the plenum box with the Bacteria

+29

Response time11 hrs
Response rate100%
70 neighbors recently requested a quote
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
26 neighbors recently requested a quote
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Showing 1-10 of 165
Insulation FAQs, answered by experts

Hanging a thick blanket over your windows will help to keep the heat inside, but only a little. Covering the glass will also prevent the sunlight from getting in, which might actually decrease the efficiency of your window overall. If you get to the point where you’re hanging blankets over your window to keep warm, call in an expert to seal around your windows to prevent warm air from escaping. They may also recommend replacing old windows that aren’t as insulative as newer window technology. Sealing a window isn’t terribly expensive and can make a big difference.

Minimal but regular checks can ensure maximum thermal performance.

The heat loss through a poorly insulated attic when you’re running your furnace or heat pump during cold weather can be as high as 25%. This means you could see significantly higher energy costs to make up for this heat loss. The cost of adding insulation to the attic may eventually pay for itself through lower energy bills. If you decide to add a radiant barrier too, the radiant barrier cost may also pay for itself over time.

You do not need to drywall over most types of garage insulation. However, doing so can increase noise reduction, make the space more attractive, and keep children and pets from touching harmful fiberglass insulation. If you’re using cellulose or some other type of blown-in insulation (fiberglass and mineral wool are common), you will need drywall to contain the insulation material.

Selling a house with spray foam insulation can be challenging due to concerns about improper installation or its compatibility with the home's structure. If not applied correctly, spray foam can cause issues such as moisture buildup, cracking, or damage to wiring and plumbing. If the insulation didn't cure correctly, there are also flammability concerns. Removing or repairing this type of insulation can pose risks as well.

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.