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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon503
    Verified insulation services reviews

Top-Rated Insulation pros in Lewisville - Updated Nov 2026

Avatar for Koala Insulation of North Texas
Koala Insulation of North Texas
5.0(
8
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Lewisville, TX and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

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.

Before
After
Durring
After
After

+30

13 neighbors recently requested a quote
Fulkrum Operating Company, LLC
5.0(
32
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Lewisville, TX and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"This September I had a home energy audit through Fulkrum Insulation. They said we needed some Ductwork changes and more insulation in the attic. Since having those solutions installed, my electric bill has been dramatically lower than ever before."
33 neighbors recently requested a quote
Recommended by65%of homeowners
Avatar for Attic Construction
Attic Construction
4.4(
86
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Lewisville, TX and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Only reason I am giving 4 stars instead of 5 is because the team left a lot of insulation for us to clean up ourselves. Otherwise, the quote was fair, they got the job quickly and accept multiple payment methods, which was convenient."
Dirty attic
Clean attic
Insulated attic
Response time6 hrs
Response rate96%
26 neighbors recently requested a quote
Avatar for North TX Insulation
North TX Insulation
5.0(
7
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Lewisville, TX and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"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!"
Attic upgrade
Insulation blow
R38 blown in
Insulation blow
Attic blown in

+6

6 neighbors recently requested a quote
Recommended by28%of homeowners
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Showing 1-10 of 317
Insulation FAQs, answered by experts

Installing new insulation in a home is worthwhile if your existing insulation is old and has lost some of its insulative capability or if you don’t have insulation installed already. Installing new insulation will boost your home’s energy efficiency, which can reduce your heating and cooling bills and save money on HVAC repair and maintenance in the long run. New insulation also keeps your living space more comfortable, so you and your family will benefit from the work as well. Finally, installing new insulation boosts your home value, making it especially worthwhile if you plan to sell.

Yes, you can use too much bubble wrap. If you overdo it with the wrapping, it can strain the top of your box and break open the taped seal, risking the chance that the contents of the box could fall out or break. Use enough wrapping to fully cover your item without compromising the security of your box.

Chimney liners often benefit from insulation, though it is not always required. Insulation helps improve the liner's efficiency by keeping flue gasses hotter, which enhances draft and reduces creosote buildup. It also prevents condensation, which can lead to corrosion. Insulation is important for chimneys on exterior walls or in colder climates. Some building codes may require insulation, so checking local regulations is essential.

To cover your HVAC ducts and air vents during construction, use plastic sheets or drop cloths secured with painter's tape. Be sure to cover all supply vents on your floors and walls, as well as the larger HVAC return vent, which is typically on the ceiling. While canvas drop cloths can also be used, they may not catch all the fine dust. It is crucial to shut off your HVAC system or at least the zone where construction is happening. Running the system with vents sealed can put significant strain on the blower motor and air handler. For additional dust containment, you can also hang plastic sheets over doorways to separate the construction area from the rest of your home.

Yes, insulating ductwork in a crawl space is a worthwhile investment, especially if you live in a colder climate or run your air conditioning for most of the year. Uninsulated ducts can lose up to 30% of their heating and cooling efficiency, which can significantly impact your electricity bill. The project is a relatively small investment and typically only takes a few hours. It's a particularly simple add-on if you are already hiring someone to insulate the entire crawl space. An added benefit is that insulated ducts put off less hot or cold air, making them less attractive to pests.

The Lewisville, TX homeowners’ guide to insulation services

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