Step OneRodent And Contamination Cleanup
Droppings, nesting, and bat guano removed under HEPA containment, then the deck is sanitized and deodorized before any new insulation goes down.

Rodent Cleanup, Insulation Removal And New Blown-In HEPA Containment • R-49 To R-60 • Groton Utilities Rebates
Eco-Friendly Solutions For Healthier Spaces
Reviewed by David Megeneishvili · Licensed & Insured In CT · IICRC AMRT + WRT
From Noank and Groton Long Point shoreline cottages taking Long Island Sound salt air to Poquonnock Bridge ranches and Mystic colonials with old settled batting, one crew handles cleanup, removal, air sealing, and new blown-in insulation to a code R-value across Groton.
Mouse droppings, urine, nesting material, and bat guano removed under HEPA containment. Affected surfaces sanitized and deodorized with EPA-registered products before any new insulation is installed, protecting indoor air quality and the crew.
HEPA containment · Sanitized deck
Contaminated, water-damaged, flattened, or undersized insulation removed by commercial insulation vacuum or bagged and hauled out. The attic deck is left clean and ready, with no contaminated material left to off-gas into the home.
Vacuum or bagged · Hauled away
Blown-in cellulose or fiberglass installed to a uniform depth that meets the Climate Zone 5 to 6 attic target of R-49 to R-60. Depth markers set and photographed so coverage is verifiable across the entire attic floor.
Code R-value · Depth verified

Top plates, wire and pipe penetrations, recessed lights, chases, and the attic hatch sealed before insulation goes down. Air sealing stops the stack-effect leakage that wastes energy and lets warm, moist air into the attic.
Entry points sealed with copper mesh, hardware cloth, and sealant so the cleaned and reinsulated attic stays pest free. Coordinated with a licensed pest operator when an active infestation is present before the attic is closed.
Roof leaks, bath fan ducts venting into the attic, and condensation on the deck identified and corrected as part of the scope. Surface mold on sheathing treated so the new insulation is installed over a dry, sound deck.
Reinsulate Your Groton Attic The Right Way. Clean It Out First.
Attic decontamination, insulation removal, air sealing, and new blown-in insulation to code R-value across Groton and New London County.
Local housing stock, attic construction, and rodent pressure shape every cleanup and reinsulation scope.
Groton runs from the submarine base and the Thames River corridor out to the Long Island Sound shoreline, and its attics vary just as widely. Noank, Groton Long Point, and Mystic shoreline cottages and colonials take steady salt-air moisture and flood risk that degrade old attic insulation and feed deck condensation and mold. Poquonnock Bridge and City of Groton mid-century ranches and capes carry thin, flattened insulation across low-slope attic floors, often R-19 or less after decades of settling. Antique shoreline cottages along the Sound were built with shallow old attics and little insulation, and they take steady rodent pressure through roofline and soffit gaps. Across all of these, the right sequence is the same: clean out the contamination, remove the failed insulation, air seal, and reinsulate to a code depth.
Groton sits in IECC Climate Zone 5, where the recommended attic level is R-49 to R-60. Bringing an underinsulated Poquonnock Bridge ranch or a shallow Noank cottage attic up to that target, paired with air sealing, is one of the highest-return energy upgrades on these homes. Groton is served by Groton Utilities rather than Eversource or United Illuminating, so Energize Connecticut rebates do not apply here. Groton Utilities runs its own residential insulation rebate and is the place to start.
Free On-Site Attic Assessment Across New London County
Thousands of attics and homes cleaned, decontaminated, and reinsulated across Connecticut, New York, and Massachusetts, from single rodent cleanups to full removal and reinsulation to a code R-value.
Most attic cleanup and reinsulation projects finish in one to two days, with depth markers set and photographed so the finished R-value is verifiable.
Itemized scope, R-value details, and timestamped photos formatted for Energize CT Home Energy Solutions and HES-IE applications.
Top rated by the Better Business Bureau with verified five-star Google reviews across Connecticut.


Your Groton Attic Cleanup And Insulation Specialists Since 2017
Green Restoration provides professional attic cleanup, insulation removal, air sealing, and new blown-in insulation for homes across Groton and New London County. Our restoration-grade process covers rodent and bat decontamination under HEPA containment, removal of old or contaminated insulation, air sealing of the attic plane, and new insulation installed to the Climate Zone 5 target of R-49 to R-60. We document every phase clearly for Groton property owners and for Groton Utilities rebate applications on the qualifying new insulation. Groton is a Groton Utilities service territory, not an Eversource or United Illuminating one, so the rebate runs through Groton Utilities rather than Energize Connecticut.
“As the local franchisee for New London County, I bring more than 15 years of IICRC-certified restoration experience, both AMRT and WRT, to every Groton attic. From Noank and Mystic shoreline cottages fighting salt-air moisture to Poquonnock Bridge ranches that need full decontamination and reinsulation, every job gets my direct oversight and the documentation your Groton Utilities rebate needs.”
Connecticut homeowners can apply Energize CT Home Energy Solutions rebates to new attic insulation and air sealing. We document eligible work so you can apply confidently.
Groton Utilities
Energize CT is funded by investor-owned utility ratepayers, and this town is not one of them. Groton Utilities administers its own residential efficiency offers, so that is where an attic project starts.

A note on accuracy: the federal Energy Efficient Home Improvement Credit (IRS Section 25C) for insulation ended December 31, 2025 and does not apply to projects completed in 2026. The programs above are state and utility incentives that cover newly installed attic insulation and air sealing. They do not cover removal, cleanup, or decontamination of old or contaminated insulation, which is billed separately. Always confirm current eligibility and caps on the official program page before work begins.
Itemized scope, R-value details, and timestamped photos formatted for Energize CT Home Energy Solutions program applications. Verify current eligibility and caps before work begins.
The same restoration-grade sequence on every Groton attic: clean it out, remove the old material, air seal, and reinsulate to R-49 to R-60.
Attic decontamination, old insulation removal, air sealing, and new blown-in insulation to a code R-value for Groton homes. One crew, one project, with a free on-site assessment.
Green Restoration provides attic cleanup, insulation removal, and new blown-in insulation in Groton, CT, covering Mystic, Noank, Groton Long Point, Poquonnock Bridge, City of Groton, Eastern Point, and Mumford Cove. Crews arrive with HEPA containment, commercial insulation vacuums, and new blown-in material, so we move from inspection to cleanup and reinsulation without waiting on a return trip.
As a locally based company serving New London County, we know these attics: Noank and Groton Long Point shoreline cottages taking salt-air moisture, Poquonnock Bridge and City of Groton mid-century ranches with thin settled batting, and antique Mystic colonials with shallow old attics set near the Sound with steady rodent pressure through roofline and soffit gaps. Our crews clean it out, correct moisture, air seal, and reinsulate to a verifiable code depth.
Call for a free on-site attic assessment. We measure your R-value and deliver a written, fixed quote before any work begins.
(833) 833-3637IICRC Certified · Licensed & Insured · State Rebate Documentation
All Towns Served By Green Restoration Of New London County, Based In New London, For Attic Cleanup, Insulation Removal & Replacement.
Connecticut HIC HIC.0668405
Green Restoration of New London County. Connecticut HIC HIC.0668405. We submit our scope of work and supporting documentation directly to your insurer. We are not licensed public adjusters and do not negotiate claims on your behalf.
Clear, honest answers about rodent cleanup, insulation removal and replacement, R-value, and Connecticut rebates for Groton attic projects.
Groton attic projects span a wide range because the town holds both accessible Poquonnock Bridge and City of Groton ranch attics and shallow antique Noank and Mystic shoreline cottage attics. As a general guide in this market, old insulation removal runs about $1 to $2 per square foot, and new blown-in insulation runs about $1.50 to $4.50 per square foot installed depending on the target depth. A full project that includes decontamination, removal, air sealing, and new insulation commonly lands between $3,500 and $11,000 depending on attic size, access, and contamination. Antique shoreline cottages with heavy rodent contamination drive the higher end. Every estimate is written and itemized, and the Groton Utilities insulation rebate can reduce the new-insulation portion.
Groton sits in IECC Climate Zone 5, where the recommended attic insulation level is R-49 to R-60. Many antique Noank and Mystic shoreline cottages and mid-century Poquonnock Bridge ranches measure R-19 to R-30 or less once the insulation has settled or been damaged. We measure the existing depth, then install new insulation to a uniform depth that reaches the R-49 to R-60 target, with depth markers set and photographed so the result is verifiable across the whole attic.
In most cases, yes. Shoreline cottages along the Sound in Noank, Groton Long Point, and Eastern Point take steady rodent pressure, and insulation contaminated with droppings, urine, or bat guano holds pathogens, allergens, and odor that move into the living space through attic air. It cannot be cleaned in place. We remove the contaminated insulation under HEPA containment, sanitize and deodorize the deck, seal the roofline and soffit entry points, and then install new insulation.
Not Energize Connecticut. Energize CT residential rebates are for Eversource, United Illuminating, CNG, and SCG customers, and Groton is served by Groton Utilities instead, so Groton homes are outside that programme. Groton Utilities runs its own residential attic insulation rebate: up to $2.00 per square foot at R-38 and up to $2.50 per square foot at R-49. The rebate applies to the new insulation, not to removal or decontamination, and Groton Utilities sets the paperwork and any pre-approval steps. Confirm current terms with Groton Utilities before work begins, and we provide the job documentation you need for the application.
No. The federal Energy Efficient Home Improvement Credit for insulation, IRS Section 25C, ended on December 31, 2025 and does not apply to projects completed in 2026. Homeowners who completed qualifying work by the end of 2025 may still claim it on their 2025 return. For 2026 Groton projects, the savings come from the Groton Utilities insulation rebate on the new insulation rather than from Energize Connecticut, which does not serve Groton Utilities customers.
Most Groton attic projects are completed in one to two days. A straightforward removal and reinsulation on a Poquonnock Bridge or City of Groton ranch often finishes in a single day, while heavier contamination in an antique Noank cottage, moisture correction on a Groton Long Point shoreline home, or extensive air sealing can extend the work to two days. The written scope confirms the expected timeline before work begins.
Yes. Bat guano is removed under HEPA containment with the same restoration-grade decontamination used for rodent waste, and the deck is sanitized and deodorized before new insulation is installed. When an active bat colony is present, work is coordinated with a licensed wildlife operator and timed around protected exclusion windows before the attic is sealed and reinsulated.
Sometimes. Standard Connecticut homeowner policies can cover attic insulation damage caused by a sudden and accidental covered event, such as a roof leak or storm. Energy upgrades and rodent damage are generally not covered, though the Groton Utilities insulation rebate can apply to the new insulation. We submit our scope of work and supporting documentation directly to your insurer. We are not licensed public adjusters and do not negotiate claims on your behalf.
The same local Green Restoration team covers all of these across Groton. One number for every emergency and every cleanup.