Should you remove old insulation before adding new insulation?

• <div><p>You don’t need to <a href="https://www.angi.com/articles/should-i-remove-old-insulation-when-i-upgrade.htm">remove old insulation before adding new insulation</a>. As long as the old insulation is still in good shape—not wet, physically damaged, or moldy—then you can stack new insulation on top of old insulation to get a compounding effect. You can also mix different types of insulation, like adding blown-in insulation around existing fiberglass batt insulation or installing rigid insulation boards over rafters in your attic that already have batt insulation installed. If your existing insulation is very old or damaged, though, you’ll likely see more benefit from removing it and replacing it instead.</p></div>

Does insulating pipes help?

• <div><p>Yes, insulating hot water pipes helps your system run more efficiently. This is especially true in basements in colder climates, where cold air likes to settle in. There are a <a href="https://www.angi.com/articles/how-to-insulate-pipes.htm">few ways to insulate water pipes</a> (foam is common) to keep hot water hot, reducing the need for your water heater to constantly heat the water in the tank or your circulator to kick on more than necessary. </p></div>

Can you add spray foam insulation to an existing home?

• <div><p>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.</p></div>

Do rodents like cellulose insulation?

• <div><p>There are two reasons why cellulose insulation repels rodents (and insects). First, the insulation has been treated with boric acid, which is a natural pest-repellent. In addition, the loose-fill style of cellulose creates less-than-ideal conditions for mice and other rodents to nest and burrow, helping to keep them at bay.</p></div>

How do pros determine the right type and amount of insulation for my attic?

• <div><p>Through R-value assessments based on climate and existing insulation.</p></div>

Top 10 Best Insulation pros in Patten, ME

Q: Should you remove old insulation before adding new insulation?

• <div><p>You don&rsquo;t need to <a href="https://www.angi.com/articles/should-i-remove-old-insulation-when-i-upgrade.htm">remove old insulation before adding new insulation</a>. As long as the old insulation is still in good shape&mdash;not wet, physically damaged, or moldy&mdash;then you can stack new insulation on top of old insulation to get a compounding effect. You can also mix different types of insulation, like adding blown-in insulation around existing fiberglass batt insulation or installing rigid insulation boards over rafters in your attic that already have batt insulation installed. If your existing insulation is very old or damaged, though, you&rsquo;ll likely see more benefit from removing it and replacing it instead.</p></div>

New Leaf Construction

4.78(

23

)

New Leaf Construction

4.78(

23

)

Customers say: Quality work

Recommended by 91% of Angi customers

New Leaf Construction is the best small contractor that helps home owners take care of their homes. We are a company built on the core values of Integrity, Service, and Excellence, with a focus on quality and open honesty. Our work comes with a guarantee and we stand behind it every day. All of our services are provided under the umbrella of a full insurance policy (available in writing to any client upon request) and we are pleased to offer free estimating as well. We feel the rapidly-increasing number of families who depend on New Leaf Construction to take care of their needs speaks to the calibre of our company and the characteristics of our work.

"Our experience with New Leaf Construction in December led us back to hiring them again for a few additional projects we wanted completed outside this spring. The remodel of our firm over the winter was very successful and it was a pleasure to work with their crew. Their professionalism showed throughout the entirety of the project, from the quality of their work, sensitivity to our timeline, accommodating the needs of our business with as little interruption as possible, cleanliness of their work area, attention to detail, and staying on budget. I highly recommend New Leaf Construction."

Sarah G on May 2018

New Leaf Construction is the best small contractor that helps home owners take care of their homes. We are a company built on the core values of Integrity, Service, and Excellence, with a focus on quality and open honesty. Our work comes with a guarantee and we stand behind it every day. All of our services are provided under the umbrella of a full insurance policy (available in writing to any client upon request) and we are pleased to offer free estimating as well. We feel the rapidly-increasing number of families who depend on New Leaf Construction to take care of their needs speaks to the calibre of our company and the characteristics of our work.

"Our experience with New Leaf Construction in December led us back to hiring them again for a few additional projects we wanted completed outside this spring. The remodel of our firm over the winter was very successful and it was a pleasure to work with their crew. Their professionalism showed throughout the entirety of the project, from the quality of their work, sensitivity to our timeline, accommodating the needs of our business with as little interruption as possible, cleanliness of their work area, attention to detail, and staying on budget. I highly recommend New Leaf Construction."

Sarah G on May 2018

Bragg Builders

5.00(

7

)

Bragg Builders

5.00(

7

)

Customers say: Quick response

Recommended by 100% of Angi customers

We have built structures from houses and garages to additions and camps as well as beautiful decks from Central Maine to Massachusetts and up to Northern Maine. Licensed and insured quality subs are used when needed. Additional email - [email protected]. Additional Service- Lincoln, Oxford, Penobscot, Piscataquis, Somerset, Waldo, & Washington

One Stop Home Repair

4.39(

28

)

One Stop Home Repair

4.39(

28

)

Customers say: Super punctual

1981 years of experience

New construction, remodeling, electrical, plumbing, handyman, roofing, insulation, painting, gutters, solar hot water, fences, pellet stove installation, windows & doors, vinyl siding, carpentry, garages, bathrooms, kitchens & additions.

"I had to call today since you never responded to the last emails sent about the workers/men being in the area the same day of my work request. And yet charged over $300 for travel. You have They would not negotiate the travel time to be fair. Beware!!! never received any written estimate of the work and travel time before they arrived I would have never agree to two hours iof work for $778.20. I shouldn?t have trusted them. Shame on them!! Sadly good scam by them."

Laura F on September 2025

New construction, remodeling, electrical, plumbing, handyman, roofing, insulation, painting, gutters, solar hot water, fences, pellet stove installation, windows & doors, vinyl siding, carpentry, garages, bathrooms, kitchens & additions.

"I had to call today since you never responded to the last emails sent about the workers/men being in the area the same day of my work request. And yet charged over $300 for travel. You have They would not negotiate the travel time to be fair. Beware!!! never received any written estimate of the work and travel time before they arrived I would have never agree to two hours iof work for $778.20. I shouldn?t have trusted them. Shame on them!! Sadly good scam by them."

Laura F on September 2025

Maine Construction Group

4.86(

7

)

Maine Construction Group

4.86(

7

)

Customers say: Quick response

Recommended by 100% of Angi customers

Maine Construction Group builds and remodels homes in the greater Bangor area. Our mission is to provide our customers with an outstanding product that is of superior quality, energy efficient and engineered to today's standards with attention to detail. Being a locally owned family operated business, our goal is to provide the highest level of project satisfaction for our customers.

We specialize in vinyl siding, insulation, doors, and windows. Lowest prices because of low overhead. We've been doing vinyl siding since the mid 70s. Best warranty in the business: two years on all workmanship and materials are lifetime warranty.

Weatherization Experts

4.17(

6

)

Weatherization Experts

4.17(

6

)

Customers say: Terrific value

1989 years of experience

We have been in the building trade for 25 years and added specialty weatherization 6 years ago. We are certified contractors for Maine State Housing Authority and Efficiency Maine. We are EPA Certified Lead Safe Renovators and fully insured. BPI Certified.

"Horrible Job! This outfit changed their appointment times at least five times before actually starting the job. They blew cellulose insulation into our east bedroom attic, but had complete disregard for the mess they created. They ran the discharge hose up through an open ceiling hatch with no attempt at sealing the opening. As a result, cellulose debris & dust was EVERYWHERE! It took my wife and me several hours of vacuuming, washing items, shaking out blankets and rugs, and serious dusting to get the spaces back somewhat civilized."

Wm Pete G on October 2021

We have been in the building trade for 25 years and added specialty weatherization 6 years ago. We are certified contractors for Maine State Housing Authority and Efficiency Maine. We are EPA Certified Lead Safe Renovators and fully insured. BPI Certified.

"Horrible Job! This outfit changed their appointment times at least five times before actually starting the job. They blew cellulose insulation into our east bedroom attic, but had complete disregard for the mess they created. They ran the discharge hose up through an open ceiling hatch with no attempt at sealing the opening. As a result, cellulose debris & dust was EVERYWHERE! It took my wife and me several hours of vacuuming, washing items, shaking out blankets and rugs, and serious dusting to get the spaces back somewhat civilized."

Wm Pete G on October 2021

Hampton Enterprise LLC

3.40(

5

)

Hampton Enterprise LLC

3.40(

5

)

1989 years of experience

Our mission at Hampton Enterprise LLC is to provide clients with superior customer service, quality work and speedy service in all aspects of their home improvement needs. Licensed, insured and trusted since 1989; come discover the Hampton difference today! We specialize in the installation and repair of Windows, Doors, Flooring, Sinks, Bathtubs, Showers, Sprinkler Systems and much more. We also offer Interior and Exterior Home Painting, Custom Welding Fabrication and Carpentry.Localy in your area just call and i will call back with a local number thank you . from James Hampton AL.Dothan 334-648-3817, AL Birmingham 334-648-3817, AL Huntsville 334-648-3817, AL Mobile 334-648-3817, AL Tuscaloosa 334-648-3817, AL Montgomery 334-578-4761, AR Little Rock 334-648-3817, AZ Phoenix 334-648-3817, CA LosAngeles/Sacramento 334-648-3817, CO Denver/Colorado Springs 334-648-3817, CT Hartford 334-648-3817, DE Dover 334-648-3817, FL Tallahassee 334-648-3817, FL Cape Canaveral/ Cocoa 334-648-3817, FL. Destin 334-648-3817, FL Gainsville 334-648-3817 Fl Jacksonville 334-648-3817, FL Orlando 334-648-3817, FL Panama City 334-648-3817, FL Tampa 334-648-3817, FL Miami 334-648-3817, GA Atlanta 334-648-3817, GA Albany 334-648-3817, GA Augusta 334-648-3817, GA Columbus 334-648-3817, GA Macon 334-648-3817, GA Valdosta 334-648-3817, IA Des Moines 334-648-3817, ID Boise 334-648-3817, IL Chicago/Springfield 334-648-3817, IN Indianapolis 334-648-3817, KS Levenworth/Topeka 334-648-3817, KY Frankfort 334-648-3817, LA New orleans/Baton Rouge 334-648-3817, MA Boston 334-648-3817, MD Annapolis 334-648-3817, ME Augusta 334-648-3817, MI Detroit/Lansing 334-648-3817, MN Saint Paul 334-648-3817, MO kansas City/Jefferson City 334-648-3817, MS Jackson 334-648-3817, MS Biloxi 334-648-3817, MS Gulf Port 334-648-3817, MT helena 334-648-3817, NC Raleigh 334-648-3817, ND Bismark 334-648-3817, NE Lincoln 334-648-3817, NJ Trenton 334-648-3817, NM Santa Fe 334-648-3817, NV Carson City 334-648-3817, NV Las Vegas 334-648-3817 NY Albany 334-648-3817, OH Columbus 334-648-3817, OK Oklahoma Ciy 334-648-3817, OR Salem 334-648-3817, PA harrisburg 334-648-3817, RI Providence 334-648-3817, SC Columbia 334-648-3817, SD Pierre 334-648-3817, TN nashville 334-648-3817, TX Austin 334-648-3817, UT Salt Lake City 334-648-3817, VA Richmond 334-648-3817, VT montpelier 334-648-3817, WI Madison 334-648-3817, WV Charleston 334-648-3817, WY Cheyenne 334-648-3817

"They guys suck."

Penny S on February 2024

Our mission at Hampton Enterprise LLC is to provide clients with superior customer service, quality work and speedy service in all aspects of their home improvement needs. Licensed, insured and trusted since 1989; come discover the Hampton difference today! We specialize in the installation and repair of Windows, Doors, Flooring, Sinks, Bathtubs, Showers, Sprinkler Systems and much more. We also offer Interior and Exterior Home Painting, Custom Welding Fabrication and Carpentry.Localy in your area just call and i will call back with a local number thank you . from James Hampton AL.Dothan 334-648-3817, AL Birmingham 334-648-3817, AL Huntsville 334-648-3817, AL Mobile 334-648-3817, AL Tuscaloosa 334-648-3817, AL Montgomery 334-578-4761, AR Little Rock 334-648-3817, AZ Phoenix 334-648-3817, CA LosAngeles/Sacramento 334-648-3817, CO Denver/Colorado Springs 334-648-3817, CT Hartford 334-648-3817, DE Dover 334-648-3817, FL Tallahassee 334-648-3817, FL Cape Canaveral/ Cocoa 334-648-3817, FL. Destin 334-648-3817, FL Gainsville 334-648-3817 Fl Jacksonville 334-648-3817, FL Orlando 334-648-3817, FL Panama City 334-648-3817, FL Tampa 334-648-3817, FL Miami 334-648-3817, GA Atlanta 334-648-3817, GA Albany 334-648-3817, GA Augusta 334-648-3817, GA Columbus 334-648-3817, GA Macon 334-648-3817, GA Valdosta 334-648-3817, IA Des Moines 334-648-3817, ID Boise 334-648-3817, IL Chicago/Springfield 334-648-3817, IN Indianapolis 334-648-3817, KS Levenworth/Topeka 334-648-3817, KY Frankfort 334-648-3817, LA New orleans/Baton Rouge 334-648-3817, MA Boston 334-648-3817, MD Annapolis 334-648-3817, ME Augusta 334-648-3817, MI Detroit/Lansing 334-648-3817, MN Saint Paul 334-648-3817, MO kansas City/Jefferson City 334-648-3817, MS Jackson 334-648-3817, MS Biloxi 334-648-3817, MS Gulf Port 334-648-3817, MT helena 334-648-3817, NC Raleigh 334-648-3817, ND Bismark 334-648-3817, NE Lincoln 334-648-3817, NJ Trenton 334-648-3817, NM Santa Fe 334-648-3817, NV Carson City 334-648-3817, NV Las Vegas 334-648-3817 NY Albany 334-648-3817, OH Columbus 334-648-3817, OK Oklahoma Ciy 334-648-3817, OR Salem 334-648-3817, PA harrisburg 334-648-3817, RI Providence 334-648-3817, SC Columbia 334-648-3817, SD Pierre 334-648-3817, TN nashville 334-648-3817, TX Austin 334-648-3817, UT Salt Lake City 334-648-3817, VA Richmond 334-648-3817, VT montpelier 334-648-3817, WI Madison 334-648-3817, WV Charleston 334-648-3817, WY Cheyenne 334-648-3817

"They guys suck."

Penny S on February 2024

Warmzone

4.00(

3

)

Warmzone

4.00(

3

)

Customers say: Quick response

2003 years of experience

WARMZONE is a national company designs and sells radiant snow removal systems for heated driveways and walkways, radiant floor heating and roof deicing. We have a trained staff of professionals that will learn about your project requirements and perscribe the best solution possible to heat your driveway or home. We have a network of subcontractors across the United States. Our consultations and designs are free and we have one of the largest selection of proven products to choose from. Call or email us to receive a free quote.

"They were absolutely wonderful. Will sure recommend them"

jorge d on April 2018

WARMZONE is a national company designs and sells radiant snow removal systems for heated driveways and walkways, radiant floor heating and roof deicing. We have a trained staff of professionals that will learn about your project requirements and perscribe the best solution possible to heat your driveway or home. We have a network of subcontractors across the United States. Our consultations and designs are free and we have one of the largest selection of proven products to choose from. Call or email us to receive a free quote.