$50 OFF if Installed by May 31
Serving Clinton, Old Saybrook, Guilford, and surrounding shoreline communities

Upgrade Your Attic Insulation,
Upgrade Your Comfort

we help homeowners across Connecticut upgrade their attics the right way—with the right materials.

Takes 30 mins
Zero Obligation
Same Day Quote
4.8 Customer Rating
EnergizeCT Insulation Installers Network
Licensed & Insured

The Benefits of Attic Insulation— Beyond Insulation

The benefits of insulating (or re-insulating) your attic.

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Takes 30 mins
Zero Obligation
Same Day Quote

When to Insulate Your Attic?

Here are common scenarios when you should insulate your attic.

Your Upstairs is Always Too Hot or Too Cold

If your second floor is always hotter in the summer and colder in the winter, your attic insulation isn’t doing its job—and your HVAC is probably paying the price.

You Just Bought an Older Home

Many Connecticut homes built before the 1990s are under-insulated or missing insulation entirely, especially in the attic—making an upgrade a smart first move.

You’re Dealing with Ice Dams Every Winter

If you see thick ridges of ice forming along your roof edge, it’s likely due to heat escaping through the attic and melting snow—better insulation can stop the heat loss and prevent ice dams from forming in the first place.

You Spot Signs of Moisture or Mold in the Attic

Condensation, musty smells, or visible mold are signs your attic may have poor air sealing or insufficient insulation, which can lead to bigger problems down the road.

You’re Planning a Renovation or HVAC Upgrade

Before investing in a new heating or cooling system, insulating the attic helps you lock in efficiency and avoid overspending on equipment that’s compensating for energy leaks.

Your Path to Superior Insulation Starts Here

Efficiency Meets Excellence, Every Step of the Way

rapid-response
1
Get a free estimate

Building science is complicated. Our estimators don't just tell you what we'll do, they explain why we're doing it.

Schedule
2
Schedule the Work

We work with your timeline and availability. We typically schedule 2 - 4 weeks out

professional-installation
3
Insulation Begins

You will have a dedicated project lead and project manager who will walk you through every step of the process

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4
Enjoy your Home

Your home becomes your comfort zone, as you stop dealing with drafty rooms, inconsistent temperatures, and high energy bills.

Takes 30 mins
Zero Obligation
Same Day Quote

The Nealon Difference

Where Historic Charm Meets Modern Efficiency – Without Compromise

Home Specialists

Older Home Specialists

As EPA Lead-Safe certified contractors, we understand the unique challenges of insulating historic New England homes.

Energy Saving

Proven Energy Savings

Our customers typically see a 30% reduction in energy costs after our professional insulation services. Your investment often pays for itself through years of lower utility bills.

Assessment Process

Professional Energy Assessment Process

Every project begins with a thorough energy assessment to identify your home's specific needs.

Takes 30 mins
Zero Obligation
Same Day Quote
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Frequently Asked Questions?

Do I really need attic insulation?

Yes, attic insulation is essential for reducing energy bills and maintaining consistent indoor temperatures. It keeps heated or cooled air inside your home and prevents your HVAC system from overworking, especially in extreme weather.

How do I know if my attic insulation is bad?

You can tell your attic insulation is bad if rooms feel drafty, temperatures vary, or winter ice dams form. High energy bills and visible joists are also signs. In Connecticut, less than 16 inches of fiberglass or 14 inches of cellulose means you’re below the R-49 standard.

What type of insulation is best for attics?

The best attic insulation depends on your home's needs and budget. Dense-packed cellulose is ideal for sealing gaps and resisting pests. Fiberglass is cost-effective with good air sealing, while spray foam offers maximum air sealing for complex layouts. An expert inspection ensures the best fit.

How much attic insulation do I need?

In Connecticut, you need attic insulation rated at least R-49, which typically requires 14 to 18 inches of blown-in cellulose. Proper insulation levels are based on measured needs, not guesses, to ensure maximum energy performance.

Can I just add more insulation on top of the old insulation?

You can add new insulation over old insulation if the existing layer is dry, clean, and free of mold. If it shows signs of moisture, pests, or odors, it should be removed before installing new insulation to avoid trapping problems underneath

Will attic insulation help in the summer, too?

Attic insulation helps in the summer by keeping heat out and reducing the strain on your air conditioner. A well-insulated attic blocks external heat, keeping your home cooler and improving energy efficiency.

Is installing new attic insulation messy or disruptive?

Installing new attic insulation is not messy or disruptive when done professionally. Our team uses clean equipment, prepares thoroughly, and completes most jobs in one day. Homeowners notice improved comfort without the mess or hassle. Our crew treats your house like it’s their own.

How much does attic insulation cost?

Attic insulation typically costs between $1,500 and $4,000. The final price depends on the attic’s size, condition, and insulation type. Most homeowners recoup the cost within a few years through energy savings. For a quick estimate, use our insulation pricing calculator.

4.8/5 Customer Rating

Reviews from our customers over 48 years

Great experience! Very friendly and professional. They were on time, stuck to their quote and work timeline and have done a great job with two projects for me. I would definitely recommend.

Tom L

Ready To Start Saving?

Schedule your FREE home energy assessment today. No pressure, no obligation— just expert advice for your home's needs.

4.8 Customer Rating
EnergizeCT Insulation Installers Network
1500+ Homes Upgraded
Licensed & Insured