Permit
Expect a building permit
The residential code’s permit-exempt list (R105.2) has no roofing line. Hamilton’s building department issues it, and the application carries the contractor’s HIC registration number.
Roof Replacement in Hamilton, MA
The median home in Hamilton was built in 1958; there are 2,830 of them. Below: what the code asks of a replacement here, the permit, and the town’s own records.
New Roofing Costs connects homeowners with independent local roofing contractors. We do not perform roofing work.
Call (833) 781-1806 Replacement and new roofs only · homeowners
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 Hamilton
Layers
No third layer
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. 79% of Hamilton’s homes were built before 1980; many have been reroofed before.
Source: IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes); 780 CMR 51.00, Chapter 9 amendments
Ice barrier
Required in Hamilton
Massachusetts answers “yes” to the ice barrier for every town. Membrane or doubled underlayment, eave to 24 inches inside the wall line (IRC R905.1.2), is a line on every quote here.
Source: 780 CMR 51.00, Chapter 3 amendments (Tables R301.2(1) and R301.2(2)); IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)
Wind and snow
118 mph design wind, 50 psf ground snow
Hamilton’s code design values are a 118 mph ultimate design wind speed and a 50 psf ground snow load (30 psf minimum flat-roof snow load). At that wind speed the code calls for asphalt shingles labeled ASTM D7158 Class G or H (Table R905.2.4.1).
Source: 780 CMR 51.00, Chapter 3 amendments (Tables R301.2(1) and R301.2(2)); IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes) (780 CMR 51.00, Table R301.2(2))
Rules as read on October 24, 2026. Everything else the state requires: roof replacement in Massachusetts.
Homes and roofs in Hamilton
85% of the occupied homes in Hamilton are lived in by their owners: 2,239 households, the people this line is for. By year built, 21% before 1940, 55% before 1960, 79% before 1980; 5% went up in 2000 or later. (ACS 2020–2024.)
By building type: 84% detached houses, 6% buildings of two to four units.
Of the 34 Essex County municipalities on this site, Hamilton has the 4th largest share of homes built before 1980: 79%, against a county range of 41% to 89%.
ZIP codes: 01982
Hamilton and the towns around it
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Hamilton | 1958 | 79% | 85% | 3% | 6 |
| Wenham | 1961 | 73% | 86% | 6% | 7 |
| Essex | 1969 | 56% | 75% | 6% | 4 |
| Topsfield | 1969 | 69% | 90% | 6% | 7 |
| Beverly | 1956 | 72% | 60% | 4% | 5 |
| Ipswich | 1964 | 64% | 74% | 12% | 5 |
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 Hamilton
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 6 separate days within 10 miles of Hamilton; the largest was 3 in on July 11, 2006. The most recent was July 26, 2015.
That is fewer than most places in the state on this site (median 10 days).
Federal major-disaster declarations for storms in Essex County since 2006: 9, most recently DR-4379, Severe Winter Storm and Snowstorm, declared July 2018. (OpenFEMA.)
A report says hail fell near Hamilton, not that it damaged a roof. When wind or hail damage means a new roof.
What goes on the roof next
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Hamilton’s houses: 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; 84% of homes here are detached | Class G or H at 118 mph design wind (IRC Table R905.2.4.1) |
| Metal (standing seam, panels) | 50 years | Simple roofs with long, unbroken slopes | Standing seam that carries its own loads can skip the tear-off (R908.3.1) |
| Slate | 75 years | Older houses; 21% here predate 1940 | Never a base for a new layer (R908.3.1.1); heavy |
| Flat roof: EPDM or TPO | 15 years | Porches, additions, low-slope rears | Where the roof meets a wall or parapet |
Checking a contractor in Massachusetts
For an owner-occupied home of one to four units in Hamilton, the contractor must be registered under the home improvement law (M.G.L. c. 142A), and a construction supervisor licensed (CSL) for roof covering supervises a permitted reroof. Ask for both numbers.
The price side is in what a new roof costs in Massachusetts; the paperwork side in checking a roofing contractor.
Questions about a new roof in Hamilton
Do I need a permit to replace a roof in Hamilton?
Expect a building permit. The residential code’s permit-exempt list (R105.2) has no roofing line. Hamilton’s building department issues it, and the application carries the contractor’s HIC registration number.
Can a new roof go over the old one in Hamilton?
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. 79% of Hamilton’s homes were built before 1980; many have been reroofed before.
How old are the houses in Hamilton?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Hamilton was built in 1958, 79% of homes were built before 1980, 85% are owner-occupied.
Does Hamilton get hail that damages roofs?
Hail of 1 inch or larger was reported on 6 days within 10 miles of Hamilton 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 Hamilton?
For an owner-occupied home of one to four units in Hamilton, the contractor must be registered under the home improvement law (M.G.L. c. 142A), and a construction supervisor licensed (CSL) for roof covering supervises a permitted reroof. Ask for both numbers.
What they will ask on the phone
- Your address or ZIP code in Hamilton
- The number of stories, and whether the house stands alone
- What covers the roof now and about when it went on
- The number of layers, if anyone has counted
- Your timing for a complete replacement
- Any historic-district or HOA rules on the house in Hamilton
- That you are the owner and the one who decides
The full list: before you call.