Owners occupy 54.6% of Mansfield’s homes, and only 50.9% of its 6,141 housing units are detached houses. 11.0%, 678 units, sit in buildings of fifty or more, 12.9% in three- and four-unit buildings, 8.3% are attached units such as townhouses and condominiums, and 3.9% are mobile homes. That is what a town looks like when it contains Storrs and the main campus of the University of Connecticut.
The median home dates from 1978, but Mansfield has kept building: the 2010s were its busiest decade, with 913 homes, and 28.5% of the stock has gone up since 2000. 13.8% predates 1940, 15.4% is from the 1940s and 50s, 23.0% from the 1960s and 70s and 19.2% from the 1980s and 90s. Fuel oil or kerosene heats 44.9% of occupied homes, electricity 30.2%, bottled gas 10.3%, utility gas 8.4% and wood 4.8%.
So Mansfield is two housing markets sharing one town. One is rented, in buildings whose owners make every decision about the envelope. The other is owner-occupied houses in Mansfield Center, Gurleyville, Mansfield Hollow, Atwoodville, Eagleville and the neighborhoods around Storrs, where the owner lives in the house and decides for it.
The houses we insulate in Mansfield
The 850 homes built before 1940 belong to a town incorporated in 1702 with a working past: the first silk mill in the United States was built here, and the Gurleyville Gristmill of 1835 still stands on the Fenton River. Mansfield Center, Gurleyville and Mansfield Hollow are each National Register historic districts. Houses of that age are farmhouses and village houses with uninsulated walls, often balloon or timber framing, stone foundations and sills that leak along their length. We work them from the cellar up: seal the sill and rim, seal the attic floor at the chimney and wall tops, insulate the attic, and fill walls only where the wiring has been checked and the plaster is sound.
The 727 homes of the 1950s are capes and ranches. The cape loses heat behind its knee walls, where the bedroom floor joists run open to the eaves, and through thin sloped ceilings and a shallow flat attic. The ranch loses it through a long attic of settled insulation with a bath fan emptying into it.
The 651 homes of the 1960s and 762 of the 1970s are ranches, raised ranches, split-levels and contemporaries, some of the last with cathedral ceilings and wood stoves. The raised ranch leaks at its above-grade rim and at the garage ceiling below its bedrooms; the contemporary through its ridge, its recessed lights and the chase around a stove chimney.
The 539 homes of the 1980s and 641 of the 1990s are mostly colonials, with insulated walls and attics that were never sealed. The 837 homes of the 2000s and 913 of the 2010s include houses, townhouses and apartments, among them the mixed-use downtown Storrs built in the mid-2000s. A newer single house usually needs attention only at the attic ducts, the bonus room and the rim joist; a townhouse’s roof and walls usually belong to its association.
The 44.9% of homes on oil and 10.3% on propane pay for leaks in delivered fuel, which usually costs more per unit of heat than utility gas, so sealing pays back fastest there. In the 30.2% heated by electricity, every leak runs the meter, so sealing shows up on the bill quickly too.
Storrs, the university and the rental market
Storrs is anchored economically and demographically by the University of Connecticut, founded as the Storrs Agricultural College when Charles and Augustus Storrs gave the land in 1881.
University buildings are run by the university’s own facilities office. The campus, including the historic district of the old agricultural school, and the former Mansfield Training School buildings the university has been fixing up are institutional property with their own processes.
Large apartment buildings are the owner’s decision. The 678 units in buildings of fifty or more are owned and managed as whole properties. If you rent there and your unit is cold or drafty, tell the landlord or manager. An owner of a building with five or more units should look at Energize CT’s Multifamily Initiative rather than Home Energy Solutions.
Small rentals are where a landlord can act. Where a single house, a two-unit building or one of the three- and four-unit buildings is rented, its landlord can insulate it like any other house, and Home Energy Solutions accepts rentals of up to four units with the landlord’s approval. For a renter who wants the work done, the practical step is asking the landlord to book it.
Mobile and manufactured homes are built to a different pattern. The 3.9% of Mansfield’s housing units that are mobile homes sit on a chassis rather than a foundation, with no ordinary stud cavity to fill and no walk-in attic, so the floor, the belly, the ducts and the skirting are where the heat goes. A phone call settles what a particular home needs.
We seal before we insulate
Insulation slows heat moving through a surface. It does nothing about air leaking through the gaps beside it, and in an older Mansfield house those gaps run from a stone cellar to an open attic.
In a 1970s raised ranch the order runs: from the attic, seal the top plates, the plumbing stack, the flue or stove chase, the light boxes and the hatch, and set baffles at the eaves; then seal and insulate the above-grade rim joist and the garage ceiling; then bring the attic floor to depth. In a pre-1940 Mansfield Center house it starts in the cellar at the sill and ends at the attic floor, with the walls last, if at all.
If a quote specifies a depth of insulation and never mentions air sealing, it is half a job.
What insulation costs in Mansfield
Most of our projects run between $3,500 and $12,500. A raised ranch is priced on its attic area, rim joist and garage ceiling. A cape adds its knee walls and slopes. A contemporary with cathedral ceilings sits higher, because the slopes are filled from inside. A pre-1940 farmhouse is priced on its sill, attic and whether the walls can be filled. A small rental building is scoped as one building for its owner.
Open cell foam runs R-3.9 to R-4.2 per inch. Closed cell runs R-6.9 to R-7.1 per inch and also acts as a vapor retarder, which is why it costs more and why it is right in some assemblies and unnecessary in others. All products are manufactured in the United States and meet applicable building code and safety standards. ENERGY STAR says sealing air leaks and adding insulation can save up to 10% on annual energy bills.
Insulation rebates in Mansfield
Mansfield’s electric company is Eversource. Gas is split: the state lists both Connecticut Natural Gas (CNG) and Eversource for the town, each covering part, and no utility publishes the street boundary, so the gas bill settles which one you have. Home Energy Solutions is open to customers of Eversource, United Illuminating, Connecticut Natural Gas and Southern Connecticut Gas, whatever fuel heats the house, so an oil- or electrically heated Mansfield home applies through its Eversource electric account. It covers homes of one to four units that have not had program services within six years, and a renter needs the landlord’s approval.
Every address in Mansfield is in a state-designated environmental justice community, which can raise the Energize CT insulation incentive to $2.50 per square foot, up to $15,000.
The Home Energy Solutions visit carries a $40 copay on the standard tier, effective 1 April 2026. An authorized contractor runs health and safety tests, a blower-door test to pinpoint drafts and air leaks, and a duct test where there is forced hot air or central air conditioning, and provides up to seven hours of air sealing at no cost, with a $10 hourly fee for extra time. A two- to four-unit building always gets two visits. There may be a waiting list, and the program is subject to available funding.
The standard 2026 Energize CT insulation rebate is up to $2.00 per square foot or 75 percent of the total cost, whichever is less, up to a maximum of $10,000, for attic floors, floored-over attics, walls, basement and garage ceilings and rim joists. Foam on the underside of a roof deck is not on that list, so ask the program before counting on a rebate for a cathedral ceiling. The insulation must be recommended during a Home Energy Solutions visit, approved before installation, and installed by an approved contractor from the Energize CT Insulation Installers Network.
On Energize CT’s 2026–2027 figures, a two-person household with $63,703 or less is Income Eligible, with no-cost service and up to 100 percent coverage of insulation costs; $63,704 to $84,939 is Enhanced Incentives, with a no-cost visit and up to $2.50 per square foot, on default limits that vary by zip code; and $84,940 or more is the standard tier. In the Income Eligible program a renter’s landlord must complete a Landlord Authorization, and for deeper measures the landlord may be asked to pay some of the costs.
The rebate is paid only on work by the program’s network installers, so ask any installer, including us, whether they are in that network, and compare prices after any rebate. Owners can finance through the Connecticut Green Bank’s Smart-E Loan, which requires an owner-occupied building of one to four units: no money down, up to $50,000, at 6.99% APR over 5, 7 or 10 years, 7.49% over 12 and 7.99% over 15 where offered, through participating contractors. There is no federal tax credit for insulation put in during 2026, because Section 25C ended for anything placed in service after 31 December 2025. Our Connecticut rebate guide has more.
Code and climate in Mansfield
52.3% of Mansfield’s housing was built before 1980, and the town is in climate zone 5A, the zone that applies statewide.
The 2022 Connecticut State Building Code, which adopts the 2021 IECC as amended by the state, sets the values for new homes and additions with applications filed since 1 October 2022: ceilings at R-60, or R-49 where it runs full height over the wall top plate at the eaves; walls at R-30 in the cavity, R-20 cavity plus R-5 continuous, R-13 plus R-10 continuous, or R-20 continuous; floors at R-30; basement walls at R-15 continuous, R-19 cavity or R-13 cavity plus R-5 continuous; and windows at U-0.30. Airtightness is tested too: a new home may leak no more than 3.0 air changes per hour at 50 pascals on the prescriptive path, and 5.0 on any path. A draft of Connecticut’s next code, based on the 2024 IECC, has been adopted, but its effective date has been delayed and none has been set.
Common questions about insulation in Mansfield
Do you install insulation in Mansfield, CT?
Yes, in owner-occupied houses across Mansfield: Storrs, Mansfield Center, Gurleyville, Mansfield Hollow, Atwoodville, Eagleville and Mount Hope. The work includes pre-1940 farmhouses in the historic districts, 1950s capes, 1960s and 70s raised ranches and contemporaries, 1980s and 90s colonials, and newer houses. We also work for landlords who own small rental buildings. University buildings are run by their own facilities office, and a large apartment complex is a decision for the owner or the association.
How much does insulation cost in Mansfield?
Most projects run $3,500 to $12,500. A raised ranch is priced on its attic, rim joist and garage ceiling, and a cape adds knee walls and slopes. A contemporary with cathedral ceilings costs more because the slopes are filled from inside. A pre-1940 house is priced on its sill, attic and whether the walls can be filled. A small rental building is scoped as one building. The price comes in writing after a free walk-through.
Are there insulation rebates in Mansfield?
Yes, through Energize Connecticut, and every Mansfield address is in an environmental justice community, where the insulation incentive can reach $2.50 per square foot, up to $15,000. Homes apply for Home Energy Solutions through their Eversource electric account or their gas account with CNG or Eversource. Insulation must be recommended at that visit, approved before installation, and installed by an Energize CT Insulation Installers Network contractor. Renters need landlord approval. There is no federal tax credit for insulation installed in 2026.
I rent a house near UConn and it is freezing. Can I get it insulated?
Not on your own, because the building belongs to the landlord, and only the landlord can approve work on it. What you can do is ask. Home Energy Solutions accepts rented homes of up to four units with the landlord’s approval, and the landlord can also call us for a price on the house. If your household is income-eligible, the program’s Landlord Authorization form is the route. In a large apartment complex, report the problem to the manager in writing.
Free estimate in Mansfield
Our free estimate is a walk-through we carry out ourselves, apart from Home Energy Solutions, and no rebate eligibility comes with it. In an older Mansfield house we start at the sill in the cellar and finish at the attic floor and wall tops; in a raised ranch, the attic plane, the rim and the garage ceiling; in a small rental building, every unit’s share of the cellar and attic. You get a written scope and price, with no charge and no obligation.
Call 914-825-6824, 8am–8pm, seven days, or use the contact form. We work out of New Rochelle, NY, with a 100-plus in-house crew that never subcontracts.
Learn more
- Insulation contractors across Tolland County
- Coventry, Mansfield’s neighbor to the west
- Tolland, northwest along Storrs Road
- Windham and Willimantic, on Mansfield Center’s border
- Insulating older homes
- Attic insulation
- Our own crew