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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon390
    Verified insulation services reviews

Find Insulation pros in Harvard

Avatar for Attic Air

Attic Air

4.93(
252
)
Approved Pro

Attic Air

4.93(
252
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
107 local quotes requested

Robert Carroll, the owner, has 30 years of experience in the insulation and ventilation business. Attic Air has been in business since 1996 and specializes in insulating and ventilating residential homes. Attic-Air will come out free of charge to evaluate your home. Robert Carroll will be at every site to ensure a job well done and that you will be a satisfied customer. (No subcontractors used)

"It went really well. Robert Carroll really knows his stuff. Hire this guy. I say that without reservation of any kind. Don't look any further, believe me, I did. This is the smartest guy. He is honest, dependable, offers fair pricing, and his team can do all the work. I got several estimates from A+ rated insulation companies, but Robert was more knowledgeable than the other companies. He was the only one to point out that my soffits were not vented. Apparently, my house was built on the day no one was inspecting. The builder never cut open the soffits. That meant there was zero airflow going through my attic. The attic fan could run all day, but without air to move, it would not do any good. Only Robert noticed this and offered a solution to fix the problem! I asked some of the other A+ companies if they would vent the soffits and they all said they don't do that work, but they would be happy to add more insulation, which would not fix the problem if the attic was not vented."

Kim B on July 2023

Robert Carroll, the owner, has 30 years of experience in the insulation and ventilation business. Attic Air has been in business since 1996 and specializes in insulating and ventilating residential homes. Attic-Air will come out free of charge to evaluate your home. Robert Carroll will be at every site to ensure a job well done and that you will be a satisfied customer. (No subcontractors used)

"It went really well. Robert Carroll really knows his stuff. Hire this guy. I say that without reservation of any kind. Don't look any further, believe me, I did. This is the smartest guy. He is honest, dependable, offers fair pricing, and his team can do all the work. I got several estimates from A+ rated insulation companies, but Robert was more knowledgeable than the other companies. He was the only one to point out that my soffits were not vented. Apparently, my house was built on the day no one was inspecting. The builder never cut open the soffits. That meant there was zero airflow going through my attic. The attic fan could run all day, but without air to move, it would not do any good. Only Robert noticed this and offered a solution to fix the problem! I asked some of the other A+ companies if they would vent the soffits and they all said they don't do that work, but they would be happy to add more insulation, which would not fix the problem if the attic was not vented."

Kim B on July 2023


Avatar for Perma-Seal Basement Systems

Perma-Seal Basement Systems

4.56(
1,161
)
Approved Pro

Perma-Seal Basement Systems

4.56(
1,161
)
Approved Pro
Customers say: Super punctual
1053 local quotes requested
46 years of experience

Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.

"The crew was great. Communication was excellent and the work was completed on time. Workers cleaned up well after job each day. I would recommend. The 2nd day they noticed bathroom fan ventilation was not installed in our 20+ year addition. That work is scheduled for the near future. Thanks. Great work."

Eddie B on December 2025

Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.

"The crew was great. Communication was excellent and the work was completed on time. Workers cleaned up well after job each day. I would recommend. The 2nd day they noticed bathroom fan ventilation was not installed in our 20+ year addition. That work is scheduled for the near future. Thanks. Great work."

Eddie B on December 2025


Avatar for Paragon Insulation

Paragon Insulation

4.94(
53
)
Approved Pro

Paragon Insulation

4.94(
53
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
45 local quotes requested

Welcome to Paragon Insulation. Northern Illinois' premier insulation company. We have been serving Northern Illinois and Southeastern Wisconsin since 2001. Paragon has been helping people stay comfortable and save money on their energy costs. Here at Paragon Insulation we specialize in Retro fits, new additions, new construction, and crawl space encapsulation. Contact Paragon to schedule your free no obligation estimate today. 815-526-3355

"Randy and his team did a great job. Randy personally came out to assess our home's unique needs. They came on time and efficiently executed the job at a reasonable price. We would definitely hire again for future projects."

Adam M on March 2023

Welcome to Paragon Insulation. Northern Illinois' premier insulation company. We have been serving Northern Illinois and Southeastern Wisconsin since 2001. Paragon has been helping people stay comfortable and save money on their energy costs. Here at Paragon Insulation we specialize in Retro fits, new additions, new construction, and crawl space encapsulation. Contact Paragon to schedule your free no obligation estimate today. 815-526-3355

"Randy and his team did a great job. Randy personally came out to assess our home's unique needs. They came on time and efficiently executed the job at a reasonable price. We would definitely hire again for future projects."

Adam M on March 2023


Common-Sense Insulation

No reviews yet

Common-Sense Insulation

No reviews yet

Offering professional insulation installation in attic-spaces, walls, and crawl spaces in new build or existing homes. We use fiberglass insulation from the industries leading name, Owens Corning. Loose-fill, batts, and radiant barrier install among other services offered. Lifetime warranty on product and workmanship.

Offering professional insulation installation in attic-spaces, walls, and crawl spaces in new build or existing homes. We use fiberglass insulation from the industries leading name, Owens Corning. Loose-fill, batts, and radiant barrier install among other services offered. Lifetime warranty on product and workmanship.


Bright Exteriors, Inc

5.00(
2
)

Bright Exteriors, Inc

5.00(
2
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Residential and commercial Roofing, Attic Blow Insulation, Pressure Washing, Siding, Gutters, Painting. 30 years experience, Prompt and Professional!! Owner Operated. Licensed, Bonded and Insured.

"Jason was very professional with the roofing that was done.When they were completed the clean up was very good .I would recommend the them and will use them again in the future."

Matt R on May 2021

Residential and commercial Roofing, Attic Blow Insulation, Pressure Washing, Siding, Gutters, Painting. 30 years experience, Prompt and Professional!! Owner Operated. Licensed, Bonded and Insured.

"Jason was very professional with the roofing that was done.When they were completed the clean up was very good .I would recommend the them and will use them again in the future."

Matt R on May 2021


L & R Handyman

No reviews yet

L & R Handyman

No reviews yet

2 handymen each with well over 20yrs of experience, in plumbing, complete house remodeling, weatherization for the state of Illinois. No job to small or big.

2 handymen each with well over 20yrs of experience, in plumbing, complete house remodeling, weatherization for the state of Illinois. No job to small or big.


Global Custom Roofing Inc

No reviews yet

Global Custom Roofing Inc

No reviews yet
11 years of experience

* Roofing - Architectural, Metal, Flat, Cedarwood, Woodland, Glenwood. * Siding - Vinyl, Aluminium, LP Smartside, Wood. * Windows and Doors * Gutter & Downspouts - Aluminium, Copper, Vinyl. * Gutter Guards - Mesh Aluminium, Mesh Plastic, Foam. * Soffit - Aluminium, Vinyl, Wood. * Fascia - Aluminium, Vinyl, Wood. * Painting - Exterior and Interior * Power Wash - Siding, Driveway, Roof, Etc. * Drywall * Attic insulation - Cleaning, Install. * Decks - Build it and or repairs. * Floor installation - Vinyl title, Laminate

* Roofing - Architectural, Metal, Flat, Cedarwood, Woodland, Glenwood. * Siding - Vinyl, Aluminium, LP Smartside, Wood. * Windows and Doors * Gutter & Downspouts - Aluminium, Copper, Vinyl. * Gutter Guards - Mesh Aluminium, Mesh Plastic, Foam. * Soffit - Aluminium, Vinyl, Wood. * Fascia - Aluminium, Vinyl, Wood. * Painting - Exterior and Interior * Power Wash - Siding, Driveway, Roof, Etc. * Drywall * Attic insulation - Cleaning, Install. * Decks - Build it and or repairs. * Floor installation - Vinyl title, Laminate


Avatar for Double Diamond Construction Services Inc.

Double Diamond Construction Services Inc.

4.50(
6
)

Double Diamond Construction Services Inc.

4.50(
6
)
Customers say: Terrific value
Free onsite estimate

Double Diamond Construction Services Inc. is a general contracting company in Elgin, Illinois that provides a wide array of construction solutions for residential and commercial properties throughout the Chicagoland Area. With our team of qualified professionals, we make sure that our work lives up to our clients’ standards of quality. We offer a wide range of services from interior/exterior remodels to basement and deck build-outs to general maintenance work that includes the following and much more: Plumbing and Electrical Work (All Certified) Tile Work/Carpentry Roofing/Siding Repairs/Installation Painting/Staining (Interior/Exterior) Leak Inspection Mold Remediation Drywall Repair Epoxy Flooring Installation Window Cleaning Dryer Vent Cleaning Pressure Washing Gutter Cleaning. Please call 630-673-4382 to schedule.

"It was excellent."

Jeff J on November 2020

Double Diamond Construction Services Inc. is a general contracting company in Elgin, Illinois that provides a wide array of construction solutions for residential and commercial properties throughout the Chicagoland Area. With our team of qualified professionals, we make sure that our work lives up to our clients’ standards of quality. We offer a wide range of services from interior/exterior remodels to basement and deck build-outs to general maintenance work that includes the following and much more: Plumbing and Electrical Work (All Certified) Tile Work/Carpentry Roofing/Siding Repairs/Installation Painting/Staining (Interior/Exterior) Leak Inspection Mold Remediation Drywall Repair Epoxy Flooring Installation Window Cleaning Dryer Vent Cleaning Pressure Washing Gutter Cleaning. Please call 630-673-4382 to schedule.

"It was excellent."

Jeff J on November 2020



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Insulation questions, answered by experts

If the outside temperature drops below 20 degrees Fahrenheit, it will take around six hours for your pipes to freeze—and they might even burst. That’s why keeping your mobile home’s temperature around 50 to 60 degrees Fahrenheit is necessary, even if you’re leaving it vacant for the winter. In addition, having ample skirting around the mobile home's underbelly will help keep pipes insulated during the winter. 

Durable materials suited for climate include aluminum for coastal areas or composite wood in varying environments for durability and minimal upkeep.

2x4 walls can hold R-13 or R-15 batts of insulation, which is usually about 3.5 inches thick. You should also check with your local building codes to see if there’s a required thickness you need to adhere to. 

You can also use R-value maps to determine the best thickness and ratings for where you live. For example, someone in Texas doesn’t need as thick of insulation as someone in Montana. Energy Star has a good one you can reference.

Bathroom wall insulation not only keeps the area temperate, but it also reduces instances of mold, mildew, and rot. Bathrooms, after all, are havens for moisture. With this in mind, it’s absolutely worth it to insulate bathroom walls since it saves money in the long run. You won’t have to hire a pricey mold remediation service down the line. Also, insulation decreases outdoor noise and lowers energy costs.

The benefits of insulating your pipes include preventing freezing, sweating, and condensation. In addition, insulating your pipes can make your home more energy-efficient by keeping your pipes from losing or gaining heat. You’ll be able to turn the temperature of your water heater down by two to four degrees Fahrenheit. According to the U.S. Department of Energy, this can reduce energy costs by 3% to 4% per year.

The Harvard, IL homeowners’ guide to insulation services

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

What do you need done? We’ll find top pros.
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