Should I remove old attic insulation before adding new?

• <div><p>Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: </p><ul><li><p>If the insulation is over 15 years old</p></li><li><p>If the insulation is wet or moldy</p></li><li><p>If it is <a href="https://www.angi.com/articles/what-is-vermiculite-insulation.htm">vermiculite insulation</a></p></li><li><p>If you see signs of pest infestation</p></li></ul><p>Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.</p></div>

Best doorbell installation pros near Cascade, MT

Q: What insulation generally has the highest R-value?

• <div><p>Structural insulated panels and rigid foam boards have the highest R-value of any insulation that contractors commonly use, with R-values reaching up to around 8.0. These types of insulation are best in extremely cold climates, but they&rsquo;re generally preferred for new construction, as they can be challenging to retrofit. Blown-in and loose fill insulation provide the next best insulative value, provided the installation is done properly. It&rsquo;s important to choose an insulation type that meets your needs based on climate, as maximizing R-value may not always be financially worthwhile if you live in a moderate climate.</p></div>

Q: What is the best insulation for soundproofing a room?

• <div><p>Natural fiber batts and spray foam insulation both work great for soundproofing. Newer materials, such as hemp batts, are more expensive but more effective for insulation and sound blocking. They are also more sustainable. There is also a professional system called Blow-In Blanket Insulation (BIBS) that is soundproof and moisture-resistant. However, BIBS must be installed professionally and can be a costly investment.</p></div>

Q: How is batt, rolled, or reflective insulation professionally installed?

• <div><p>Insulation is professionally installed by measuring spaces, cutting materials to fit correctly, and placing them without gaps for optimal thermal resistance.</p></div>

Q: What is the most affordable way to insulate behind drywall?

• <div><p>The most affordable way to insulate behind unfinished walls is to install fiberglass batts or rolls. These total around <b>$0.75 per linear foot</b>, with the width matching the gaps between standard studs perfectly. However, it&rsquo;s important to consider the R-value of your insulation and the climate in your area, as fiberglass insulation isn&rsquo;t the best in terms of preventing heat transfer. Plus, the most affordable option may cost more on electricity bills over time. The most affordable way to insulate behind finished walls is to leave them up and use blown-in insulation to avoid drywall replacement.</p></div>

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Verified Reviews for Doorbell Installation pros in Cascade, MT

*The Angi rating for Doorbell Installation companies in Cascade, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Doorbell Installation needs.

*The HomeAdvisor rating for Doorbell Installation companies in Cascade, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Doorbell Installation needs.

Last update on December 01, 2022

Reviewed in December 2022
Adrian was awesome! He was great to work with. He was timely, prompt professional, and finished quickly. He is was willing to work with you. He gives you feedback on what would work best and is the most efficient without being the most expensive. He does not try to upsell you on services you...
A-Drain Plumbing
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Reviewed in September 2021
Billy and team did great job. Bid the project well and accepted the reduced scope we could afford with no issues. Billy also did a great job of working through finding all the right parts and pieces for taking a half bath to a full bath in a basement. I left all the parts and pieces to him...
Billy Widmer
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Reviewed in September 2020
Very professional get it done outfit! These boys are great
LeakStoppers
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Reviewed in August 2020
On time, equip well cared for, stayed on task, took care of tasks completely. Made sure they kept me informed about task and progress. Good job, Great People!!
Lakey Maintenance Service, LLC
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Reviewed in April 2020
Quick response, next day with estimate, a day later to do the job.
Air Advisor
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Reviewed in February 2020
The install crew showed up the morning of install, were very courteous a and professional throughout the day. They worked efficiently to get the job done. My new windows are gorgeous. The framing work the did looks great. I couldn't be happier. A job well done. Will be calling them when its time...
Renewal by Andersen of Montana
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Reviewed in December 2012
The job went smoothly and they finished when they said they would. My one complaint would be when they came to winterize the system they had forgotten to install ,a backfllow preventer and the water blew out of my well instead of the sprinklers. They had to dig up the pipe and correct the...
Ron Hall Sprinklers
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Reviewed in October 2012
Fair pricing, superior customer service, highly skilled courteous installers. They did exactly what they said they would do when they said they would. Never have had such a quiet furnace!! <br />
B & B HEATING & AIR COND
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Reviewed in October 2012
Poor to non-existent project management. Promised the work would be completed in 4.5 to 5 days. 19 days from start until the day THEY were last on the roof FIXING it. <br /> Will be picking up shingles, nails, staples, plastic wrap, cigarette butts, bottle caps, etc. for months if not years!!...
CASCADE HOME IMPROVEMENTS INC
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Reviewed in March 2012
They are the best plumbers in Great Falls. So far the work they have done seems good. They have only installed the pipes in the house but will be finishing the projects soon.
FALLS PLUMBING INC
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Top-Rated Doorbell installation pros in Cascade - Updated Nov 2026

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Doorbell Installation FAQs, answered by experts

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation:

If the insulation is over 15 years old
If the insulation is wet or moldy
If it is vermiculite insulation
If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

Structural insulated panels and rigid foam boards have the highest R-value of any insulation that contractors commonly use, with R-values reaching up to around 8.0. These types of insulation are best in extremely cold climates, but they’re generally preferred for new construction, as they can be challenging to retrofit. Blown-in and loose fill insulation provide the next best insulative value, provided the installation is done properly. It’s important to choose an insulation type that meets your needs based on climate, as maximizing R-value may not always be financially worthwhile if you live in a moderate climate.

Natural fiber batts and spray foam insulation both work great for soundproofing. Newer materials, such as hemp batts, are more expensive but more effective for insulation and sound blocking. They are also more sustainable. There is also a professional system called Blow-In Blanket Insulation (BIBS) that is soundproof and moisture-resistant. However, BIBS must be installed professionally and can be a costly investment.

Insulation is professionally installed by measuring spaces, cutting materials to fit correctly, and placing them without gaps for optimal thermal resistance.

The most affordable way to insulate behind unfinished walls is to install fiberglass batts or rolls. These total around $0.75 per linear foot, with the width matching the gaps between standard studs perfectly. However, it’s important to consider the R-value of your insulation and the climate in your area, as fiberglass insulation isn’t the best in terms of preventing heat transfer. Plus, the most affordable option may cost more on electricity bills over time. The most affordable way to insulate behind finished walls is to leave them up and use blown-in insulation to avoid drywall replacement.

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