Cromwell has 6,181 homes, and half of them were standing by 1976. The rules below decide how much of the old roof has to come off and what goes under the new one.
New Roofing Costs connects homeowners with independent local roofing contractors. We do not perform roofing work.
This number connects homeowners who are planning a new roof or a full roof replacement with independent local roofing contractors. It is not for leak repairs or patch jobs. The call must come from the homeowner who decides on the roof. Calls may be recorded.
The rules for a reroof in Cromwell
Permit
The 25 percent line
Without a permit, Connecticut allows only:
Repairs that are limited to 25 percent of roof covering and building siding within one calendar year.
2022 CSBC, (Amd) R105.2, item 11
Replacing the whole roof crosses that line; Cromwell’s building department issues the permit.
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 59% of Cromwell’s homes were built before 1980, so count the layers before comparing quotes.
The state’s climate table marks the ice barrier “yes” statewide. It runs from the eave to 24 inches inside the exterior wall, more on steep roofs (IRC R905.1.2); check that the quote lists it.
Connecticut adds a 4-inch self-adhering strip over all joints of a plywood or OSB deck ((Amd) R905.1.1). It is not needed under a fully adhered membrane, or on board decks under 3 feet wide.
Cromwell’s code design values are a 120 mph ultimate design wind speed and a 30 psf ground snow load; it is in Connecticut’s hurricane-prone region. At that wind speed the code calls for asphalt shingles labeled ASTM D7158 Class G or H (Table R905.2.4.1).
Rules as read on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Connecticut.
Homes and roofs in Cromwell
Of 5,763 occupied homes in Cromwell, 4,749 (82%) are owner-occupied. By year built, 15% before 1940, 29% before 1960, 59% before 1980; 16% went up in 2000 or later. (ACS 2020–2024.)
By building type: 58% detached houses, 16% attached single-family houses (rowhouses, twins and townhouses), 12% buildings of two to four units.
Of the 15 Middlesex County municipalities on this site, Cromwell has the 10th largest share of homes built before 1980: 59%, against a county range of 41% to 71%.
Median built: median year the homes were built. Before 1980: share of homes built then. Owners: share of homes that are owner-occupied. Row, twin: share of homes that are rowhouses, twins or townhouses. Census ACS 2020–2024. Hail days: days with hail of 1 inch or larger within 10 miles, 2006–2025, NOAA Storm Prediction Center.
Storm record around Cromwell
NOAA’s storm reports show 11 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Cromwell, topping out at 1.75 in on June 22, 2024. The most recent was August 26, 2024.
Federal major-disaster declarations for storms in Middlesex County since 2006: 9, most recently DR-4629, Remnants of Hurricane Ida, declared October 2021. (OpenFEMA.)
Lifespans come from HUD’s capital-needs table, not from a brochure. More in the guides to shingles, metal, slate and flat roofs.
Material
HUD useful life
Fits a house like
Watch for
Asphalt shingles
20 years
Most pitched roofs; 58% of homes here are detached
Class G or H at 120 mph design wind (IRC Table R905.2.4.1)
Metal (standing seam, panels)
50 years
Low pitches and long runs
Standing seam that carries its own loads can skip the tear-off (R908.3.1)
Slate
75 years
Older houses; 15% here predate 1940
Never a base for a new layer (R908.3.1.1); heavy
Flat roof: EPDM or TPO
15 years
Low-slope roofs and rear sections (16% of homes here are attached)
Where the roof meets a wall or parapet
Checking a contractor in Connecticut
Connecticut registers home improvement contractors and their salespeople with the Department of Consumer Protection (C.G.S. § 20-420); 24,065 contractor registrations were active in October 2026. Ask for the number of anyone pricing a roof in Cromwell.
The 25 percent line. Replacing the whole roof crosses that line; Cromwell’s building department issues the permit.
Can a new roof go over the old one in Cromwell?
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 59% of Cromwell’s homes were built before 1980, so count the layers before comparing quotes.
How old are the houses in Cromwell?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Cromwell was built in 1976, 59% of homes were built before 1980, 82% are owner-occupied.
Does Cromwell get hail that damages roofs?
Hail of 1 inch or larger was reported on 11 days within 10 miles of Cromwell from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
How do I check a roofing contractor in Cromwell?
Connecticut registers home improvement contractors and their salespeople with the Department of Consumer Protection (C.G.S. § 20-420); 24,065 contractor registrations were active in October 2026. Ask for the number of anyone pricing a roof in Cromwell.
What they will ask on the phone
Where the house is: the Cromwell address or ZIP
How many stories the house has, and whether it is detached or attached
The roof you have today, shingle, metal, slate, tile or flat, and its rough age
How many layers are on it, if you know
That the job is a full replacement or a new roof, and your timing
Any historic-district or HOA rules on the house in Cromwell