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TRUSTED BY LEWISVILLE, ID HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon22
    Verified insulation services reviews

Top-Rated Insulation pros in Lewisville - Updated Nov 2026

Avatar for Diaz Insulation, LLC
Diaz Insulation, LLC
5.0(
17
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Lewisville, ID and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Incredible service. They keep me informed every step of the way. They gave me an exact time for a quote and came back two hours later to do the job. They exceeded expectations with the depth of insulation and quality. This father and son duo immediately went to work and finished in an hour. The price was extremely reasonable and they were prepared for working in my 1923 home. Best contracting experience in Idaho Falls!"
Garage Attic
Home Attic
Addition Attic
Home Attic
Garage Attic

+11

Response time4 hrs
Response rate91%
11 neighbors recently requested a quote
Avatar for Advanced Home Services
Advanced Home Services
4.6(
195
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Lewisville, ID and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"Frank was very patient with us and very willing to explain everything multiple times to insure we knew exactly what getting a new AC and furnace would ential cost wise and time wise. Appreciate the transparency and professionalism."
Furnace Service
Furnace Service
Advanced Home Services
Advanced Home Services
Advanced Home Services

+4

Response time10 hrs
18 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Gem State Insulation
Gem State Insulation
New to Angi
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Lewisville, ID and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

Our company invites you to experience prompt service and superior attention to detail. Our customer satisfaction is our top priority. We will earn your trust for a lifetime. We believe in making all clients repeat clients. You can be assured you're in good with our company working on your home improvement project. If you are looking for a contractor that follows business practices such as promptly returning phone calls, arriving on time for appointments and following through on promises then call our reputable company today We will be the one and only contractor you'll ever need. Call us today and you'll be pleased you did. Thank you \n

2 neighbors recently requested a quote
The Service Company of Idaho
New to Angi
Spray Foam Insulation - Install

Serving Lewisville, ID and surrounding areas

Approved

In business since 2013

Free estimates

Offers commercial services

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time10 mins
Avatar for Teton Insulation and Solar - Inicio  Facebook
Teton Insulation and Solar - Inicio Facebook
4.4(
10
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Lewisville, ID and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"I highly recommend Teton Insulation and solar to anyone who needs their assistance. I am so glad that Home Advisor Sent them as one of my choices to choose from . Kind, courteous and knowledgeable is what you get when you deal with this company. Thank you to Tyson Wood and thank you Home Advisor. I was fortunate enough to have them clean my ductwork in my home..Wow, what a difference. A+++++"
Response time2 days
Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Lewisville, ID and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Nelson Insulation
New to Angi
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Lewisville, ID and surrounding areas

Free estimates

Offers commercial services

is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

Adams Insulation, LLC
New to Angi
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Lewisville, ID and surrounding areas

In business since 2015

Credit card accepted

Offers commercial services

Welcome to Adams Insulation LLC, proudly servicing Ririe and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

Response time20 mins
Showing 1-10 of 15
Insulation FAQs, answered by experts

When it comes to fiberglass insulation versus foam board, there are a few notable differences, both aesthetically and functionally. Fiberglass insulation is soft and flexible, meaning it can be squeezed into tight spaces more easily than foam board. Fiberglass insulation also has a higher R-value, making it a better pick for colder climates. However, foam board insulation can resist moisture and pest damage much better than fiberglass.

Yes, covering exposed wires is necessary for several important reasons. Exposed electrical wires pose significant risks, such as electrical shocks, fires, short circuits, and potential damage to your home’s electrical system. By properly insulating and protecting the wires, you can minimize the potential for accidents, prevent electrical fires, and ensure your electrical system stays intact. 

On average, insulating an attic costs about $2,500, with a typical range of $1,500 to $3,500. The final price often depends on the attic's size, with costs generally falling between $1 to $3 per square foot. For example, insulating a 1,800-square-foot attic would likely cost between $1,800 and $5,400.

If the project involves removing old insulation, this can add an average of $900 to the total cost, bringing a full removal and reinsulation project to around $3,000.

Several factors influence the overall cost:

  • Insulation Type: Prices per square foot vary significantly by material.

  • Reflective: $0.50–$1.50

  • Blown-in: $1–$4

  • Batt: $2–$4

  • Loose-fill: $2–$5

  • Spray foam: $2–$5

  • Structural insulated panels (SIPs): $4–$7

  • Project Complexity: Factors like sealing air leaks, poor attic accessibility, and required inspections can add to the cost.

  • Removal Issues: The discovery of mold, asbestos, or pests during the removal of old insulation can substantially increase the price.

While insulation is required for all exterior walls in a house, it is not typically required for interior walls. Local and state building codes mandate that new construction homes have adequate insulation in exterior walls and ceilings to suit the local climate.

However, there are several benefits to adding insulation to interior walls. It is excellent for sound-dampening between rooms and can help with temperature control by maintaining a regulated temperature in specific rooms and lowering heat transfer between adjacent areas. Insulating interior walls can also contribute to the overall energy efficiency of your home.

A dehumidifier can reduce condensation on your ductwork by lowering humidity levels in the air. Condensation occurs when humid, warm air makes contact with cold ducts. A dehumidifier can help maintain your home's indoor humidity below or around 50%, minimizing moisture buildup. However, if condensation is caused by leaks, cracks, or other damage, a dehumidifier won’t solve the problem. 

The Lewisville, ID homeowners’ guide to insulation services

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