Top-rated insulation pros.

Get matched with top insulation pros in Guilford, CT

There are 12 highly-rated local insulation pros.

Need a pro for your insulation service project in Guilford, CT?

Select your specific project to find the pro for you.

TRUSTED BY GUILFORD, CT HOMEOWNERS

4.5
Average homeowner rating
46
Verified insulation services reviews

Verified Reviews for Insulation Service pros in Guilford, CT

*The Angi rating for Insulation Service companies in Guilford, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Guilford, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on October 04, 2025

Reviewed in January 2014
Highly punctual and very professional. Work looks very high quality and no mess when completed.
Dr. Energy Saver Connecticut
Request a quote
Reviewed in October 2017
Awesome! They have an amazing operation. The project started and finished exactly when they said it would. I was amazed at their organizational skills and the project moved along like a symphony of different construction specialists coming and going. Jim (owner) told me the only way they could...
Better Built Basements LLC
Request a quote
Reviewed in June 2018
Out 1957 home had minimal insulation in the attic. Over the years some had been added but there were many gaps which made for uneven temperatures throughout the house. Dave and his crew removed the old inefficient patchwork of insulation. They then added channels around the rafters to promote...
Nealon Insulation
Request a quote
Reviewed in July 2012
Their service was fine. They are fine company and fairly reliable for being in their business.
Good Life Energy Savers LLC
Request a quote
Reviewed in February 2014
It didn't go as well just because I thought that they were going to come and sort of show me places where we could insulate better but it turned out to be more of a sales call that they were trying to sell a product worth $200 if you purchase their insulation materials. I thought they would...
Eco Energy Guard LLC
Request a quote

Find Insulation pros in Guilford

AWC Energy

•Approved Pro

AWC Energy

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

44 local quotes requested

AWC is a leading energy services company that provides a full compliment of services. We offer consulting services, general contracting, full scale integration, installation, sustainability services, and cost-effective energy solutions for commercial, industrial, residential, retail and non-profit customers.

"I am extremely happy with the work that was done at my home! Lomont came over looked at my house and told me exactly what he recommended and what insulation he was going to use and explain the benefits and product thoroughly. I ended up insulating my garage and attic and couldn’t be more happier! Once the work was all done I noticed the difference right away and I am very happy with how everything went! Would recommend AWC to all my friends and family!"

Tim D on April 2023

AWC is a leading energy services company that provides a full compliment of services. We offer consulting services, general contracting, full scale integration, installation, sustainability services, and cost-effective energy solutions for commercial, industrial, residential, retail and non-profit customers.

"I am extremely happy with the work that was done at my home! Lomont came over looked at my house and told me exactly what he recommended and what insulation he was going to use and explain the benefits and product thoroughly. I ended up insulating my garage and attic and couldn’t be more happier! Once the work was all done I noticed the difference right away and I am very happy with how everything went! Would recommend AWC to all my friends and family!"

Tim D on April 2023

Spray Foam Genie of Fairfield

Spray Foam Genie of Fairfield

Spray Foam Genie

Spray Foam Genie

HOME COMFORT PRACTICE

HOME COMFORT PRACTICE

Free onsite estimate

Whether you're looking to cool down with the latest in air conditioning technology, warm up with efficient heating systems, ensure clean airflow with expert ductwork, or breathe easier with improved indoor air quality, we've got you covered. Our comprehensive guides and services are designed to provide you with the knowledge and expertise you need to make informed decisions for your home. Plus, with our insights into Connecticut's HVAC rebates, we aim to make your journey to optimal comfort both smooth and cost-effective. Dive in and discover how we can enhance your home's comfort and efficiency today!

Whether you're looking to cool down with the latest in air conditioning technology, warm up with efficient heating systems, ensure clean airflow with expert ductwork, or breathe easier with improved indoor air quality, we've got you covered. Our comprehensive guides and services are designed to provide you with the knowledge and expertise you need to make informed decisions for your home. Plus, with our insights into Connecticut's HVAC rebates, we aim to make your journey to optimal comfort both smooth and cost-effective. Dive in and discover how we can enhance your home's comfort and efficiency today!

AMP'D Enterprises LLC

AMP'D Enterprises LLC

Customers say: Quick response

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

When you work with AMP'd, you're not just working with another contractor. You're working with a highly trained and experienced team of experts in the building science industry. Whether you are upgrading your current home, repairing after a natural disaster or embarking on a fresh new build, you can count on us for all of your insulation, ventilation and indoor air quality needs.

"Everything was Great!"

Gary B on August 2023

When you work with AMP'd, you're not just working with another contractor. You're working with a highly trained and experienced team of experts in the building science industry. Whether you are upgrading your current home, repairing after a natural disaster or embarking on a fresh new build, you can count on us for all of your insulation, ventilation and indoor air quality needs.

"Everything was Great!"

Gary B on August 2023

Insulate my Home CT

Insulate my Home CT

Premier Roofing Co.

Premier Roofing Co.

Family owned & operated Residential Roofing Co. serving the New England & Tri-State areas for over two generations. Thank you for choosing Premier Roofing Co.

Family owned & operated Residential Roofing Co. serving the New England & Tri-State areas for over two generations. Thank you for choosing Premier Roofing Co.

Darryl's Basement Cleaners

Darryl's Basement Cleaners

Free onsite estimate

We enjoy helping families and businesses clean and declutter their Residential and Commercial properties. We handle a variety of spaces. Here are some of the services provide: *Clean and remove dust, dirt and cobwebs *Remove wildlife droppings *Deep clean floors and walls *Organize client's items *Remove unwanted items *Bulk trash driven to dump *Commercial cleanout *Remove and Install insulation *small demolition work Our goal is to help our clients feel relieved and elated in obtaining a clean, clear, and organized space! We provide a worry free service grounded on professionalism, trust, care with a smile. Visit Darryl's Basement Cleaners website to see our reviews and receive a free quote.

We enjoy helping families and businesses clean and declutter their Residential and Commercial properties. We handle a variety of spaces. Here are some of the services provide: *Clean and remove dust, dirt and cobwebs *Remove wildlife droppings *Deep clean floors and walls *Organize client's items *Remove unwanted items *Bulk trash driven to dump *Commercial cleanout *Remove and Install insulation *small demolition work Our goal is to help our clients feel relieved and elated in obtaining a clean, clear, and organized space! We provide a worry free service grounded on professionalism, trust, care with a smile. Visit Darryl's Basement Cleaners website to see our reviews and receive a free quote.

Empower Solar LLC

932 Quinnipiac Ave

Empower Solar LLC

932 Quinnipiac Ave

Empower Solar is a local solar installer located in New Haven. We're helping homeowners covert to solar with our hassle-free process. This is an owner operated business and we've installed successfully on hundreds of home across the state.

Empower Solar is a local solar installer located in New Haven. We're helping homeowners covert to solar with our hassle-free process. This is an owner operated business and we've installed successfully on hundreds of home across the state.

Sebastian Spray Foam Insulation, LLC

Sebastian Spray Foam Insulation, LLC

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

We are a family owned business. We specialize in spray foam insulation, blow insulation, rock wall insulation and fiberglass insulation. We are competitive in price and guarantee a pleasant experience.

"They did a nice work. They cleaned up after and they were very helpful."

Ciro T on March 2020

We are a family owned business. We specialize in spray foam insulation, blow insulation, rock wall insulation and fiberglass insulation. We are competitive in price and guarantee a pleasant experience.

"They did a nice work. They cleaned up after and they were very helpful."

Ciro T on March 2020

...

Showing 1-10 of 89

Insulation questions, answered by experts

The primary purpose of insulation is to maintain comfortable temperatures in a home, whether that’s cool air when it’s hot out, or warm air in winter, but that’s not all it can do. All options will also minimize heating and cooling needs, lowering both your carbon footprint and energy bills in turn. And some options, like rigid foam boards, even offer soundproofing benefits, too.

Radiant barriers and insulation serve different purposes, so one is not inherently better than the other. Radiant barriers reflect radiant heat, helping keep spaces cool, especially in hot climates, while insulation slows heat transfer through conduction. For optimal energy efficiency, it’s best to use both together.

Radiant barriers can enhance the performance of insulation by preventing heat gain in the summer and heat loss in the winter. The choice between them depends on specific climate conditions and the building’s design requirements.

The cost to install a radiant barrier ranges from $700 to $2,800, depending on the size of your roof and the type you choose. Most people pay an average of $1,700 to install a radiant barrier. Foil options, both single- and double-sided, cost between $0.10 and $0.90 per square foot, while spray-on options start at $0.60 and go all the way up to $1 per square foot—which can add up quickly.

The R-value is a rating that measures the insulation’s thermal resistance (in other words, how well it insulates). For most pipe insulation, the R-value will fall between one and five. The higher the R-value, the more protection for your pipes. All pipe insulation materials should have an R-value listed in the product description or on the product label.

Depending on the item, several different materials are beneficial for long-term storage. Bubble wrap and plastic wrap help ensure delicate ceramics or furniture are safe and secure. High-quality moving boxes made of durable materials like plastic also help ensure the longevity of your storage, as cardboard will degrade faster over time.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Guilford, CT homeowners’ guide to insulation services

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

See all articles

Deane Biermeier
•
Oct 2, 2025Oct 2, 2025
How Much Does Wool Insulation Cost to Install? [2025 Data]
Wool insulation offers a higher R-value than fiberglass but is more expensive. Use this guide to estimate wool insulation costs for your home.
Timothy Moore
•
Oct 2, 2025Oct 2, 2025
How Much Does a Radiant Barrier Cost to Install? [2025 Data]
How much does a radiant barrier cost? Our guide breaks down prices by type of barrier and size of your attic space.
Nick P. Cellucci
•
Oct 2, 2025Oct 2, 2025
How Much Does It Cost to Rent a Blown-In Insulation Machine?
Learn the key factors that influence the cost of renting a blown-in insulation machine.
Audrey Bruno
•
Oct 30, 2024Oct 30, 2024
How to Choose Between Blown-In vs. Spray Foam Insulation
Are you stuck trying to decide between blown-in insulation and spray foam insulation? Factors like your budget and local climate will help you pick the right one.
Deane Biermeier
•
Oct 2, 2025Oct 2, 2025
How Much Does Ceiling Insulation Cost? [2025 Data]
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
Jacqueline DeMarco
•
Nov 7, 2024Nov 7, 2024
What R-Value Do I Need? Here’s How to Choose
If you are planning to add insulation to your home, you’re likely wondering: what R-value do I need? Our guide explains what you need to know to insulate your home properly.