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Spray Foam Insulation in Round Rock, TX

Find top-rated spray foam contractors and save up to 30% on energy bills

💰 Estimated Energy Savings in Round Rock

30%
Average Energy Savings
Typical range: 25% - 35%
$1,188
Estimated Annual Savings
Based on $330/month average energy cost
5 years
Average Payback Period
Return on investment timeline

Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Hot-Humid.

Verified Contractors in Round Rock

Home Insulation ATX

📞 Call Now🌐 Visit Website

Direct: 7373018148

5⭐
6 Google reviews

Recent Reviews:

Minerva Rodriguez★★★★★a year ago

The entire team at Home Insulation ATX was great! Monica reached out to me with a quote quickly and within a couple hours we were on their schedule. The on-site team were very professional and easy to work with. I highly recommend using Home Insulation ATX.

Barba JL★★★★★a year ago

Alvaro was always so patient and took the time to educate me regarding insulation types and R- Values for my project. Monica was always timely on her communications and scheduling was made very easy. I am very pleased with the service I received and would definitely consider using them again if I'm ever in need of insulation.

David Ogden★★★★★11 months ago

Great prices! Friendly, helpful, and patient staff. I had the old insulation vacuumed out and the work was exceptional. New insulation was installed exactly as described. I wouldn’t hesitate to call this company again!

Koala Insulation of Georgetown

📞 Call Now🌐 Visit Website

Direct: 7374005955

5⭐
8 Google reviews

Recent Reviews:

William Bojorquez★★★★★5 months ago

I had some condensation issues in my attic hallways area. Koala insulation did an amazing job installing an attic fan to mitigate how hot our attic was getting and to move all that stagnate hot air out of our attic. They also did an amazing job sealing some gaps we had between our attic and our walls in that attic hallways area. I would definitely recommend them to anyone needing insulation work done.

Gabino Espinoza★★★★★3 months ago

A great experience from start to finish. They took care of several key areas that were lacking insulation from our original builder. They even had to make a new access to above our master bedroom to blow in insulation since the builder messed up there too, and the hatch looks great! The price was right, and I'm already noticing a difference in our house temp. Well worth giving them a call, even for a quote. Thank you Koala Insulation!

Pamela Marino★★★★★2 months ago

Koala insulation did a fantastic job of cleaning out old insulation in our attic then applying new spray foam insulation, decking and a hatch cover to ensure the attic was sealed up tight! Jorge and Rodrigo were very professional and knowledgeable, they were very quick to respond to any questions we had even throughout the process and they never tried to hard core up sale us. Diana was the contact for the crew and she was awesome as well! I never saw a mess at anytime and when they finished I couldn’t even tell they had ever been there, unless I went up and looked at our new, awesome attic! Thank you guys so much, I wish all of our house projects had been this painless and this well done!

Hill Country Insulation

📞 Call Now🌐 Visit Website

Direct: 5125157707

4.2⭐
5 Google reviews

Recent Reviews:

Bridgette De La Cruz★★★★★8 years ago

I've been in the construction industry for 15+ years and have had many interactions with the folks at Hill Country Insulation. They are very knowledgeable and always provide superior service. They installed my gutters and insulation in my home and provided great service.

Heather Kendrick★★★★★5 months ago

Super happy with the gutter installation they did for my house. Very professional and courteous and completed the job in a timely manner. Highly recommend!

Eric Meyer★★★★★2 years ago

We had 2 inches of closed cell spray foam added to our metal building. Will and his crew did a great job. They were clean, punctual, hard working and an enjoyable crew to work with. This was a big job and they managed to complete it in one day. On top of that they were easily 50% or more less than all the bids I received. I would definitely use Hill Country Insulation again.

Frequently Asked Questions — Spray Foam Insulation in Round Rock

Is spray foam insulation a good choice in hot and humid climates like Round Rock?▼
Absolutely. Hot and humid climates like Round Rock, TX are actually where spray foam insulation delivers some of its best results. Closed-cell spray foam acts as both an insulation layer and a moisture/vapor barrier, preventing the humidity infiltration that causes mold, rot, and air conditioning inefficiency. Homeowners in TX typically see 20–35% reductions in cooling costs after installation. One important note: because spray foam creates a tight building envelope, proper mechanical ventilation is essential in humid climates to manage interior moisture from daily activities like cooking and bathing.
What type of spray foam is best for homes in Round Rock?▼
In hot and humid climates like Round Rock, TX, closed-cell spray foam is generally recommended for exterior walls, crawl spaces, and attics. Its high density creates a moisture barrier critical in humid environments. Open-cell foam can be used in interior walls for soundproofing and actually allows some vapor movement, which can be beneficial in certain wall assemblies. A qualified local contractor can assess your specific home and recommend the best approach.
Can spray foam insulation help reduce my AC bills in Round Rock?▼
Yes — significantly. Air conditioning accounts for the majority of energy costs in hot climates like Round Rock, TX. Spray foam seals all gaps and cracks that allow conditioned air to escape, which is the primary cause of high AC bills. Most homeowners in hot climates report 20–30% reductions in cooling costs after spray foam installation.
Is spray foam insulation worth the cost?▼
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost?▼
Spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your location. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic costs $2,000–$6,000. Most homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?▼
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?▼
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor?▼
Look for contractors who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?▼
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?▼
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.
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