Farmington’s median home was built in 1980, and the 1980s put up 21.7% of its 11,755 housing units, more than any other decade. Yet 41.0% of occupied homes heat with fuel oil or kerosene, more than the 35.1% on utility gas, with electricity at 16.5% and bottled gas at 6.1%. So the Farmington house to plan for is a 1980s or 90s house that buys its heat by the delivery.
35.1% of the stock is from the 1980s and 90s, 25.1% from the 1960s and 70s, 15.2% from the 1940s and 50s and 14.9% from 2000 on, and 9.6% predates 1940; just under half, 49.9%, was built before 1980. 65.5% of units are detached houses, 10.4% are attached, and 9.2% sit in three- and four-unit buildings, while 75.4% of occupied homes are owner-occupied. A good share of Farmington lives in a townhouse or a small building where someone else may own the attic.
The houses we insulate in Farmington
Farmington sits in the Farmington Valley 10 miles west of Hartford, at the hub of major I-84 interchanges. The Farmington River enters from Burlington through Unionville, the northwestern section, turns sharply near Farmington Center and flows north toward Avon. The town rises to hills in the east and southeast, where the Metacomet Ridge runs as Rattlesnake Mountain and Talcott Mountain.
The 2,550 homes of the 1980s and 1,580 of the 1990s are colonials and contemporaries, and their walls are insulated. The losses are elsewhere. The attic floor holds R-19 to R-30 pierced by recessed lights, a pull-down stair and a plumbing and flue chase. Cathedral ceilings and skylight wells have batts pressed against the roof deck with no vent space. A bonus room over the garage has open joist bays under its floor. On a hillside lot, a walk-out lower level exposes a full wall and rim to the weather. Where the air handler and ducts sit in the attic, they are outside the insulation entirely.
The 1,764 homes of the 1970s and 1,191 of the 1960s are ranches, split-levels and raised ranches, insulated when new and settled since. The split-level loses heat through the ceiling of the garage under its bedrooms; the raised ranch at a rim joist that stands above grade. The 1,483 homes of the 1950s are mostly capes and ranches, with knee walls and thin attic floors.
The village center is far older. Settled in 1640, Farmington is the oldest inland settlement west of the Connecticut River, and Main Street in the historic village section is lined with colonial estates, some dating back to the 17th century; the Farmington Historic District was listed in 1972. Unionville was once home to many factories run on the river’s water power. The 1,126 pre-1940 homes get the old-house approach: attic and cellar from inside, balloon-framed bays blocked before anything is filled, and no drilling of historic siding.
Townhouses, condominiums and the attic the association owns
1,226 of Farmington’s units are attached and 1,076 are in three- and four-unit buildings, with another 398 in buildings of five to nine. Where those buildings are condominiums, the roof, the attic and the exterior walls usually belong to the association, and a unit owner cannot hire anyone to open them alone. The declaration and the board decide.
What fails in a townhouse of the 1980s is predictable. The top-floor ceiling is full of recessed lights and a hatch that open into a shared attic. The party wall between units often stops short of the roof deck or leaves a gap beside it, so warm air from both units rises into the same attic. The garage ceiling under an end unit’s bedroom is thin, and the rim joist over the foundation runs the length of the building without a break. Fixing those one unit at a time rarely holds, because the attic and the rim are shared.
The practical path is a written scope for the whole building that a board can vote on. Energize CT’s Home Energy Solutions is written for homes of one to four units, and the program points owners of buildings with five or more units to its Multifamily Initiative.
We seal before we insulate
Insulation resists heat moving through a surface. Air leaking through the gaps around it carries heat straight out, and in a 1980s Farmington colonial the gaps are in plain sight once you are in the attic.
The order in that house: seal and cover every recessed light; close the flue chase with sheet metal and high-temperature sealant and the plumbing chase with foam; seal the top plates and wire holes; build an insulated, weatherstripped cover for the pull-down stair; seal the duct joints and the air handler cabinet; block the joist bays under the bonus room where they meet the garage; set baffles at the eaves and in any cathedral slope; then bring the attic floor to depth and seal the rim in the basement or walk-out.
If a quote specifies a depth of insulation and never mentions air sealing, it is half a job.
What insulation costs in Farmington
Most of our projects run between $3,500 and $12,500. In a 1980s or 90s house the number follows the attic area, the count of recessed lights and chases, the bonus room floor, the cathedral slopes and any ductwork in the attic. A townhouse building is priced for the building and the board, not one unit, and a Main Street colonial depends on what the garret and cellar allow. The spray foam cost guide covers foam pricing.
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 Farmington
Farmington’s electricity comes from Eversource. For gas, the state regulator’s town list shows Connecticut Natural Gas (CNG), though the companies’ own lists do not all agree, so the gas bill settles which company serves a house. None of that shuts out the 41.0% of homes on oil: Home Energy Solutions is open to customers of Eversource, United Illuminating, Connecticut Natural Gas and Southern Connecticut Gas, whatever fuel heats the house, and an oil-heated home can apply through its Eversource account. Homes that received the program’s services in the last six years must wait, and renters need the landlord’s approval.
The Home Energy Solutions visit is performed by an authorized contractor for a $40 copay, effective 1 April 2026. It begins with health and safety tests, uses a blower-door test to pinpoint drafts and air leaks, adds a duct test where the house has forced hot air or central air conditioning, and ends with a report of the blower-door results, recommended upgrades, and rebate and financing information. Air sealing is provided at no cost for up to seven hours; a larger home that needs more time pays $10 an hour. Two- to four-unit properties always take two visits. There may be a waiting list, and the program is subject to available funding.
The 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. The insulation must be recommended during a Home Energy Solutions visit, the project approved before installation, and the installation performed by an approved contractor from the Energize CT Insulation Installers Network. A 1980s attic floor qualifies only if its existing insulation is R-19 or less, and it must finish at R-49 or greater, or R-38 where R-49 is not structurally practicable; a garage ceiling under a bonus room at R-6 or less must reach R-19. The program lists no roof decks, so a cathedral ceiling foamed from below is a question to put to the program before counting on a rebate.
Income decides the tier. For a household of five, Energize CT’s 2026–2027 figures put $108,669 or less in Income Eligible, with no-cost service and up to 100 percent coverage of insulation costs, and $108,670 to $144,893 in Enhanced Incentives, with a no-cost visit and up to $2.50 per square foot, a range that shifts with your zip code. At $144,894 and above it is the standard program. Near a limit, ask which tier you are in before paying a copay. Parts of Farmington are designated environmental justice communities; the state’s map shows whether a specific address qualifies for up to $2.50 per square foot, up to $15,000.
The rebate is paid only when a contractor in the Insulation Installers Network does the work, so ask any installer, including us, whether they are in that network before you sign. If you want foam where the rebate does not reach, or would rather not wait for the program, we will price the job on its own merits.
The Connecticut Green Bank’s Smart-E Loan finances insulation with 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 the lender offers it. The home must be owner-occupied with one to four units, and a condominium must be individually metered. It runs through the Green Bank’s participating contractors, so ask whether yours participates. There is no federal tax credit for insulation installed in 2026: Section 25C ended for anything placed in service after 31 December 2025. The detail is in our Connecticut rebate guide.
Code and climate in Farmington
49.9% of Farmington’s housing was built before 1980. Like every Connecticut town, Farmington is in climate zone 5A.
The 2022 Connecticut State Building Code covers new houses and additions with applications filed since 1 October 2022, and it adopts the 2021 IECC with state amendments. For new construction: ceilings R-60, with R-49 accepted where it keeps its full, uncompressed height over the wall top plate at the eaves; wood-frame walls of R-30 cavity, R-20 cavity plus R-5 continuous, R-13 plus R-10 continuous or R-20 continuous; floors R-30; basement walls of R-15 continuous, R-19 cavity or R-13 cavity plus R-5 continuous; and windows at U-0.30. New Connecticut homes must pass a blower-door test at 3.0 air changes per hour at 50 pascals on the prescriptive path, and never worse than 5.0. Connecticut’s next code, based on the 2024 IECC, has been adopted in draft, but its effective date has been delayed.
Common questions about insulation in Farmington
Do you install insulation in Farmington, CT?
Yes, across Farmington Center, Unionville and the rest of the town: the 1980s and 90s colonials and contemporaries that make up 35.1% of the housing, the ranches and split-levels of the 1960s and 70s, the 1950s capes, and the older houses of the historic village, which we work from inside. For townhouse and condominium buildings we write a scope for the whole building, because the attic and exterior walls usually belong to the association.
How much does insulation cost in Farmington?
Most projects run $3,500 to $12,500. In a 1980s or 90s house the drivers are the attic area, the recessed lights and chases to seal, the cathedral slopes, the floor of any bonus room over the garage and ductwork in the attic; a walk-out lower level adds a wall and a long rim. A condominium building is priced as a building for the board, and a colonial on Main Street depends on what the garret and cellar allow.
Are there insulation rebates in Farmington?
Yes, through Energize Connecticut. Farmington is Eversource electric, and an Eversource or gas account can book a Home Energy Solutions visit with a $40 standard copay, even for an oil-heated house. Insulation recommended at that visit, approved before installation and installed by an Energize CT Insulation Installers Network contractor can earn up to $2.00 per square foot or 75 percent of cost, whichever is less, to $10,000. Some addresses qualify for a higher environmental justice rate. There is no federal tax credit on a 2026 job.
We own a Farmington townhouse. Can we insulate our own unit?
Partly. Inside your unit you can usually weatherstrip the attic hatch, seal around ceiling fixtures and outlets on exterior walls, and deal with a garage ceiling if the garage is yours. The attic above, the party wall, the rim and the exterior walls are normally common elements, so the association’s declaration and board decide. We can write a scope for the whole building that a board can vote on, which is where the real savings are.
Free estimate in Farmington
Our free estimate is a walk-through, not a Home Energy Solutions visit, and it does not qualify a house for a rebate. In a 1980s or 90s house we spend most of it in the attic with the lights, chases, pull-down stair and ducts, then look at the cathedral slopes, the bonus room floor and the walk-out rim. For a condominium building we walk the attic and rim with someone from the board. A written scope and price follow, with no charge and no obligation.
Call 914-825-6824 or use the contact form. Open 8am–8pm, seven days. We work out of New Rochelle, NY, with a 100-plus in-house crew that never subcontracts.
Learn more
- Insulation contractors across Hartford County
- Avon, downriver in the Farmington Valley
- Plainville, which split from Farmington in 1869
- West Hartford, across the ridge to the east
- Garage and bonus room insulation
- Open cell and closed cell spray foam compared
- Air sealing