
Serving Twin Falls, ID and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: Quality work
"There was a mix up on the time. The addition with insulation has made a huge difference"


Serving Twin Falls, ID and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: Quality work
"There was a mix up on the time. The addition with insulation has made a huge difference"

Serving Twin Falls, 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!"





+11

Serving Twin Falls, ID and surrounding areas
Approved
In business since 2014
Free estimates
Credit card accepted
Valley Spray Works is a leading insulation company serving Twin Falls, and surrounding areas in Southern Idaho. We specialize in spray foam insulation services for residential, commercial, and industrial properties.\n\nOur mission is to provide high-quality closed-cell, open-cell, commercial roofing, or blown-in insulation solutions that improve energy efficiency, indoor comfort, and overall building performance.Contact us today at (208) 490-9260 to learn more about our services and schedule a consultation with our experienced team




Serving Twin Falls, ID and surrounding areas
In business since 2018
Free estimates
Warranties offered
"professional insulation installation, they were prompt and clean up was excellent"




Serving Twin Falls, 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+++++"

Serving Twin Falls, ID and surrounding areas
In business since 1971
Credit card accepted
"They don't use the same contractor. You don't always get the best. It's cheaper for major repairs. They cover everything, parts, labor."





+2
Serving Twin Falls, ID and surrounding areas
In business since 2021
Free estimates
Credit card accepted
C3 INSULATION 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.
Serving Twin Falls, ID and surrounding areas
In business since 2015
Free estimates
Offers commercial services
A & J Insulation, LLC 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.

Serving Twin Falls, ID and surrounding areas
In business since 2009
Free estimates
Warranties offered
We are a locally owned and operated company with over 30 years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customizable to each individual project and specialize in building and replacing decks. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!\n





+17

Serving Twin Falls, ID and surrounding areas
In business since 2023
Free estimates
Credit card accepted
Here at 208 Insulation , we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.

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