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Connecticut's Blown-in
Attic and Wall Insulation Experts

High-performance attic and wall insulation
tailored to Connecticut homes

Takes 30 mins
Zero Obligation
Same Day Quote
4.8 Customer Rating
EnergizeCT Insulation Installers Network
Licensed & Insured
An attic with a metal pipe sticking out of the floor.
Interior wall under construction with wooden studs and reflective insulation installed, next to a white door with a semi-circular window.

Blown-in Insulation is a Solid Choice

The benefits of using Blown-in insulation.

Worker using a blowing machine to install loose-fill insulation in an attic.
Worker in attic installing cellulose insulation using a hose, wearing gloves and a headlamp.
Vacuum hose inserted into holes in the exterior wall to install insulation
Close-up of a hand holding an energy bill with an amount due of $305.16 and details including billing date, account number, service address, billing period, and usage.
Relaxing bathtub scene with a wooden tray holding an open book and a cup of tea, surrounded by lit candles and a hanging green plant.
Finished attic space with exposed ductwork, stairs entrance, and insulation along the sides.
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Takes 30 mins
Zero Obligation
Same Day Quote

When to Replace Blown-in Insulation?

Here are common scenarios when you should add blown-in insulation.

Cluttered attic with disorganized, shredded pink insulation and some reflective duct material.

Your Insulation Has Settled or Thinned Over Time

Blown-in insulation can settle as it ages, especially in older installations. When this happens, the insulation no longer provides full coverage or the intended R-value, allowing heat to escape and reducing overall energy efficiency.

White two-story house with green shutters on a stone seawall by calm water under a clear sky in autumn.

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.

Black mold growing on wooden panels inside an attic with nearby insulation material.

Moisture, Mold, or Water Damage Is Present

Moisture intrusion from roof leaks, ice dams, or ventilation problems can compromise blown-in insulation. Wet insulation loses effectiveness and can contribute to mold growth, making replacement necessary to protect both comfort and indoor air quality.

Squirrel peeking out from a curved roof tile on a terracotta tiled roof.

Pest Activity Has Contaminated the Insulation

Rodents and insects can nest in blown-in insulation, compressing it and leaving behind contaminants. Once insulation is compromised by pests, replacement is typically the most effective way to restore performance and hygiene.

Old metal HVAC unit with ducts and pipes installed on a concrete floor in a dim basement with brick walls.

Your Home Has High Energy Bills Despite Adequate Heating or Cooling

If energy costs continue to rise even though your HVAC system is in good condition, outdated or ineffective insulation may be part of the problem. Replacing old blown-in insulation can significantly reduce energy loss and improve system efficiency.

The Nealon Difference

Where Historic Charm Meets Modern Efficiency – Without Compromise

Historic large red brick mansion surrounded by lush green trees under a blue sky.

Older Home Specialists

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

Person using a calculator next to a small house model with a colorful energy efficiency rating scale from A to G.

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.

Two men inspecting and holding a handheld thermal camera in an indoor setting.

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
Worker in protective gear spraying foam insulation in an attic.

Frequently Asked Questions?

How long does blown-in insulation last?

Blown-in insulation typically lasts 20 to 30 years or longer when properly installed and kept dry. Its lifespan depends on moisture exposure, air leakage, pest activity, and material settling. Regular inspections help confirm performance and identify when replacement or upgrades are needed.

Can blown-in insulation be added on top of existing insulation?

Blown-in insulation can be added on top of existing insulation, most commonly in attics. This method increases total R-value and improves energy efficiency without removing insulation that remains dry, clean, and evenly spread. Existing insulation must be free of moisture, mold, pests, and damage before new material is added.

Does blown-in insulation help with noise reduction?

Blown-in insulation helps reduce noise by absorbing sound waves and limiting sound transmission between rooms and from outside. Its dense, gap-filling structure blocks airborne noise more effectively than many traditional insulation types. Homes near traffic, mechanical systems, or multi-story layouts often experience noticeably quieter interiors.

Will blown-in insulation make my home too tight?

Blown-in insulation does not make a home too tight when installed correctly. It reduces uncontrolled air leakage while allowing proper ventilation systems to manage fresh air and moisture. With correct attic ventilation and air sealing, homes maintain healthy airflow, indoor air quality, and balanced humidity levels.

Is blown-in insulation safe for my home and family?

Blown-in insulation is safe for homes and families when professionally installed. Modern materials meet building and fire safety standards and often include fire-resistant and pest-deterrent treatments. Once installed, insulation stays contained in walls or attic spaces and does not affect indoor air during normal daily living.

How is blown-in insulation different from batt insulation?

The main difference between blown-in insulation and batt insulation is installation and coverage. Blown-in insulation fills gaps and irregular cavities for consistent coverage, while batt insulation uses pre-cut panels that can leave voids if not perfectly installed. Blown-in works best in attics, older homes, and obstructed spaces.

Can blown-in insulation be installed in all types of homes?

Blown-in insulation can be installed in most types of homes, including older houses and homes with finished walls. It works best in attics and enclosed wall cavities. Suitability depends on framing, moisture conditions, ventilation, and existing insulation, which a professional evaluation can confirm.

What preparation is needed before installing blown-in insulation?

Prepare for blown-in insulation by inspecting attics or wall cavities for air leaks, moisture damage, ventilation issues, and existing insulation condition. Complete air sealing before installation to improve performance. Proper preparation increases energy savings, prevents moisture problems, and extends insulation lifespan.

4.8/5 Customer Rating

Reviews from our customers over 48 years

Nealon did an outstanding job in terms of courteous services, as their team members, as well as Chris who was responsible for directing the job, were most professional!!! They cleaned up nicely, and my goods remained intact. Also and happily stated, it’s been one week since they’ve installed insulation in our home, and we notice a huge difference in the amount of energy we are using for heating…which equates to $avings!!! In short, we’d use them again, and glad we chose them for this endeavor!!!

Dia CJW

Highly recommended. Their estimate was competitive, the work was done in a timely and clean manner, they explained what was done, and our house is warmer as we head into the winter. When we had a question, they came back out to talk with us and helped us answer our questions. I will use them again and recommend them to anyone.

Ariyanakylstram

They are an amazing company to do work with! Jen in the office is polite, pleasant, and very competent. The work was done well and very quickly. We had our attic and basement insulated. I would 100% recommend!

Timothy Saunders

The Nealon team was professional and considerate of my property. I noticed a 200-kilo watt decrease in my electric bill along with an additional savings in oil consumption of 50 gallons. No more drafty cellars and so far, the mice have gone elsewhere.

Christine

Fast, efficient and great price! Didn’t even notice them insulating our attic and making a big difference already! Would highly recommend for anyone that wants to cut down on their energy bill!!

David Chase

Nealon Energy Solutions has been my go to company for my personal property energy solutions & savings and all of my residential remodeling projects. as a remodeling contractor myself, I take pride in utilizing quality trades people, using quality products that perform at the top of their game. Nealon has the depth of experience that is in my opinion unmatched in the CT business market. Clients appreciate the thorough explanations of the options available to them, the professional execution of the contracted work and the cleanliness of the project when the work is completed. GO NEALON!!

Jonathan Knight Remodeling

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

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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