Best insulation pros near Lewisville, TX

"Very efficient and trustworthy crew, vacuumed and installed new insulation made the process very smooth."

At Koala Insulation, we help homeowners improve comfort, lower energy bills, and breathe cleaner air. \n\nIf your home is too hot, too cold, or costing you too much to heat and cool, poor insulation is often the problem.\n\nWe specialize in attic insulation, spray foam, air sealing, and full insulation removal and replacement. \n\nEvery home is different, so we provide honest evaluations and customized solutions, no pressure, just what works.\n\nOur goal is simple: make your home more efficient, comfortable, and healthy.\n\nGet a free insulation evaluation today and start saving.

"The contractors were efficient and very knowledgeable when it came to their craft. When in doubt, choose NxT for all of your insulation needs."

"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 !"

Expert insulation contractor for Denton & Tarrant County—specializing in attic insulation, blown-in insulation, insulation removal, air sealing, radiant barrier installation, and energy efficiency upgrades. We tackle noise reduction and pest-damaged insulation, delivering comfort and lower energy bills for homes and businesses. Our team uses only W-2 employees—not subcontractors—for guaranteed workmanship through our Iron-Clad Guarantee. Every free estimate includes thermal imaging to pinpoint your needs. Trusted for honest service and local expertise. Call now for a free in-person quote on attic insulation, removal, air sealing, radiant barrier, or upgrades.

"If you just need an attic insulated, then these guys offer a replete program."

"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."

"It was great! Jorge & his partner were very prompt, courteous, and efficient. I don’t have a really large attic but 3 other big companies quoted over $4000 to install insulation in my attic. North Tx Insulation did 13 inches of new blown in insulation for $1000.00. They were neat & in and out within an hour. I would highly recommend them!"

"The owner came out and did an estimate of the job needing to be done. Was very polite, professional and honest. I had interviewed 4 other insulation companies and they all said something different."

"They were on time, courteous, and attentive to my wishes. One mistake was made that was promptly corrected, no questions asked, no arguments and no additional charge! I was extremely happy with the outcome. I would hire them again."