Top-rated insulation pros.

Get matched with top insulation pros in Newcastle, WY

Enter your zip and get matched with up to 5 pros

Need a pro for your insulation service project in Newcastle, WY?

Select your specific project to find the pro for you.

Find Insulation pros in Newcastle

Avatar for Koala Insulation of Casper
Koala Insulation of Casper
5.0(
3
)

Serving Newcastle, WY and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Excellent service and extremely professional and knowledgeable team. I highly recommend Koala Insulation for all their insulation needs. In fact I have hired them again to install total encapsulation of my cellar. I trust them completely, I would never hire anyone else except Koala Insulation!! Also they are very kind and respectful!!"
Insulation Projects
Spray Foam Insulation
Blown-in Insulation
Response time2 days
Response rate88%
1 neighbors recently requested a quote
Avatar for Walking 4, LLC
Walking 4, LLC
5.0(
9
)

Serving Newcastle, WY and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"TJ was very thorough in his explanation of the project and giving us our options. The installation of the spray foam exceeded our expectations. He worked around our remodel and is willing to come back in phases as we complete a room and shuffle our belongings. We appreciate the communication, flexibility and professional quality of his work."
3 neighbors recently requested a quote
Capitol Builders
New to Angi

Serving Newcastle, WY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

Capitol Builders 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 customers' interests, and make their concerns the basis of our business. Turning Your Vison Into Reality!

Avatar for Energy Insulation, LLC
Energy Insulation, LLC
4.9(
16
)

Serving Newcastle, WY and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"Sam replaced 30 year old insulation under our cabin. The cleanup job was horrible with all the insulation and pinecones from squirrels. Sam meticulously cleaned all of that up and left it spotless. Sam also noticed that we had a heat vent that had become disconnected and he notified us of that and actually fixed it for us. This was above and beyond. Sam is conscientious, a hard worker and a pleasure to do business with. If you need insulation, I would wholeheartedly recommend this business!"
before photo
Before photo
after
After
after

+17

Response time2 days
Response rate89%
Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Newcastle, WY 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
Avatar for High Country Construction
High Country Construction
5.0(
1
)

Serving Newcastle, WY and surrounding areas

In business since 2025

Free estimates

Credit card accepted

High Country Construction is here to help! We are full service custom home builders and also provide spray foam insulation installs. We are based out of the Newcastle, WY area. Give our team a call today. We're looking forward to working with you!\n

Response time2 days
Avatar for Five Star Energy Services, LLC
Five Star Energy Services, LLC
5.0(
5
)

Serving Newcastle, WY and surrounding areas

In business since 2020

Free estimates

Offers commercial services

Here at Five Star Energy Services, LLC, our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion we work with you until the job is done. With over 20 years of experience, we are known for our prompt service and superior attention to detail. Our commitment to quality is evident from the beginning to the completion of your home improvement project. We are here to serve you with the knowledge and quality you deserve and expect. Call our reputable business today - you'll be pleased you did. Thank you! \n

.
.
.
.
.

+23

Response time1 day
Recommended by100%of homeowners
AC Insulation
New to Angi

Serving Newcastle, WY and surrounding areas

In business since 2022

Free estimates

At AC Insulation we pride ourselves on being the best home improvement company in the area. \nWe've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. \nBeing a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!\n

Response time30 mins
Showing 1-10 of 18
Insulation questions, answered by experts

DIY installation is not recommended, as professionals ensure even distribution, proper sealing, and compliance with building codes.

Yes, guiding choices between open-cell and closed-cell foams based on needs.

If you need to insulate behind finished walls, the best option will likely be to have an insulation professional install blown-in insulation. The installation requires small holes cut in your wall, after which the installer can blow loose-fill insulation into the void. After the installation, you’ll have minor drywall patching, which shouldn’t cost more than $100. Compared to ripping down the existing drywall, using a different type of insulation, and replacing and finishing the drywall, this should save you hundreds or even thousands, depending on the size of the room you’re insulating.

Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.

Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.

If you have access to the foundation walls, adding spray foam insulation to your existing unfinished basement or crawl space is straightforward. Replacing existing insulation in your unfinished attic space is possible after removing the old insulation. However, spray foam insulating an existing wall after the drywall is in place isn’t possible unless you remove most of the drywall.

The Newcastle, WY homeowners’ guide to insulation services

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