County outline; the Storm Prediction Center has logged 46 hail reports nearby since 2000.
For roof repair, roof replacement, leak repair, storm damage and inspections in Trenton, New Jersey, and 12 towns across Mercer, Burlington, Camden and Gloucester counties, Roofers Hotline takes one call at (855) 512-1072. The line is answered around the clock, and you get a written estimate before work starts.
According to NOAA storm records, Mercer County logged 13 hail events of one inch or larger since 2015, so storm repair is routine work here.
Roofing services in Trenton
Roof repair
Mercer County saw 0 thunderstorm wind events of 65 knots or more since 2015, NOAA records show, each one a shingle repair somewhere. The nearest station averages 24 days a year at 90 degrees or above, heat that dries out shingle seals. Scope, photographs and pricing for this job are laid out under how roof repair works here.
About 47 inches of rain fall in a normal year at the nearest station, and leaks tend to start at flashing and pipe boots. Weather disasters in Mercer County have drawn 22 federal declarations on OpenFEMA's record, most recently in 2021. Homeowners comparing quotes can start with what roof leak repair includes, then call for the written estimate.
About 36% of the 35,871 housing units the Census counts inside the city limits are owner-occupied. There are 48 roofing businesses in Mercer County in Census business records, which keeps estimates comparable. What the visit includes, in every ZIP code the metro serves, is under what emergency roof repair includes.
Hail reports within 15 km of the city center since 2000 total 46 in Storm Prediction Center logs, most of them in July. Since 2015, NOAA also recorded 8 tornadoes in Mercer County. The visit is explained under what roof replacement includes, booked from one number across the metro.
By OpenFEMA's count Mercer County has had 22 federal weather declarations, the most recent in 2021. The page on roof inspection here lists what gets checked, what gets photographed and what goes on the estimate.
The federal residential energy survey puts asphalt shingles on about 60% of homes statewide in New Jersey and metal on 4%. Metal roofing here covers what the visit includes, from the first call to the written estimate.
The nearest weather station records about 47 inches of rain a year, and most leaks start at flashing, pipe boots and valleys.
The nearest weather station averages 109 freezing days and 27 inches of snow a year, the recipe for ice dams.
Winters here bring ice dams, with 109 freezing days and 27 inches of snow a year at the nearest station in NCEI normals.
Call Roofers Hotline for roof repair or replacement in Trenton and ask for a written estimate before any work starts. The housing here is old: the median home was built in 1950, and by Census estimates for 2019 to 2023, 83% of homes were built before 1980, against 66% across the county. Roofs on houses that age have usually been patched or re-covered more than once, so small problems tend to be older than they look.
NOAA's storm records also list 13 hail events of one inch or larger in the county since 2015, plus 8 tornadoes. Call 24 hours a day to book an inspection.
What local roofs deal with
Hail, wind and storm history in the county
A roof that has already taken hail can leak months later, so a post-storm check is worth the call. NOAA's storm records show 13 hail events of one inch or larger in the county since 2015, with the largest stones at 1.5 inches, and 8 tornadoes. Hail reports here peak in July.
After any hard storm, call for an inspection and ask for the findings in the written estimate.
Housing stock and roof age
An older house usually means an older roof deck and more layers of past repairs underneath the shingles. The median home in Trenton was built in 1950, and by Census estimates for 2019 to 2023, 83% of homes predate 1980, compared with 66% county-wide. Only 35.9% of homes are owner-occupied, so many roofs depend on a landlord's decisions.
Call for an inspection of the deck and flashing, and ask for the written estimate to list what it found.
Winters, ice dams and snow load
Freeze and thaw cycles push meltwater under shingles at the eaves, and older roofs with thin insulation show it first. In the 1991 to 2020 climate normals at the Trenton State College station, the area gets 26.6 inches of snow a year and 108.9 days with a low at or below 32 F. Our ice-dam risk tier here is Moderate.
If you see stains on ceilings near exterior walls or icicles along the gutters, call before the next freeze.
Codes, permits and licensing in New Jersey
Hiring the wrong person can leave you with unfinished work and no recourse, so check registration before you sign. New Jersey requires home improvement contractors, including roofers, to register with the Division of Consumer Affairs. Look up any license at the New Jersey Division of Consumer Affairs.
Ask whether your job needs a permit from your town, and have that answer noted in the written estimate. Call to get started.
Hail events of one inch or larger by year in Mercer County, NOAA storm records: 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 2, 2020: 5, 2021: 1, 2022: 0, 2023: 5, 2024: 0, 2025: 0. The 2026 events to date are counted in the totals.
Sources: NOAA Storm Events (Mercer County); OpenFEMA declarations (Mercer County); U.S. Census ACS 2019 to 2023; NOAA SPC reports; NCEI 1991 to 2020 normals. Updated October 2026.
Costs
What roof replacement and repair cost in Trenton: typical range (2026)
Typical range for this metro, built from published ranges and the local labor index (1.16); a written estimate depends on pitch, layers and decking.
Not a quote: typical 2026 ranges from published cost guides and Census County Business Patterns 2022 payroll data; your written estimate depends on pitch, layers and decking.
Source: published 2026 cost guides (Fixr, This Old House, Bob Vila, NerdWallet, Today's Homeowner, RoofVista) and Census County Business Patterns 2022 roofing-contractor payroll.
Local roofers who know Mercer County roofsStorm, housing and climate records for Mercer County shape every estimate written here.
Emergency tarping and leak response, day or nightWith 46 nearby hail reports since 2000 on record, a tarp or temporary dry-in stops the second round of damage while the repair is scheduled.
Written estimate before any work startsThe scope and the price are written down before any work starts.
Inspection photos you can seeDamage shown from the roof, not the driveway.
Serving 26,909 ZIP codes across 39 statesOne call covers the metro and the towns listed below.
We track every storm the county records35,871 housing units inside the city limits are logged here, and those NOAA, FEMA and Census figures sit behind every estimate.
Next steps
How a roofing call works
Call (855) 512-1072 or send the quote form with your ZIP code and what the roof is doing.
A roofer calls you back from a local number to book the inspection.
Written estimate before any work starts; the work is scheduled when you say go. How each step works.
Licensing in New Jersey
New Jersey licensing: New Jersey requires home improvement contractors, including roofers, to register with the Division of Consumer Affairs. Look up any license at New Jersey Division of Consumer Affairs.
Questions
Roofing questions in Trenton
How old are the roofs in Trenton likely to be?
The homes are old, so expect aged roofs. The median home here was built in 1950, and 83% of homes were built before 1980 by Census estimates for 2019 to 2023. Call for an inspection to learn the condition of your own roof and what repair or replacement would involve.
Does Trenton get hail that damages roofs?
Yes, though at a moderate level. The county logged 13 hail events of one inch or larger since 2015, and the largest was 1.5 inches. Hail reports peak in July. After a storm, call for an inspection of shingles and flashing.
Are tornadoes a concern for roofs here?
They are part of the record. NOAA's storm records list 8 tornadoes in the county since 2015. Wind can lift shingles or strip flashing without any obvious sign from the ground. Call for an inspection after a severe storm.
Do ice dams happen here?
They can. The metro State College station averages 26.6 inches of snow and 108.9 freezing days a year in the 1991 to 2020 normals, and our ice-dam risk tier is Moderate. Look for ceiling stains and icicles at the eaves, then call for an inspection.
How do I check that a roofer is registered in New Jersey?
New Jersey requires home improvement contractors, including roofers, to register with the Division of Consumer Affairs. You can look up any license there. Before work begins, ask for a written estimate and keep it with your records. Call to book your roof inspection.
What should I have ready when I call about my roof?
Have your address, the roof's approximate age if you know it, and a short description of the problem, such as a leak location or storm damage. With homes here dating to a median of 1950, past repairs are useful to mention. Then ask for the written estimate.
About 10 miles out, homeowners can read our coverage of Hightstown, with the same number and its own housing figures. About 13 miles out, homeowners can read Columbus roofers, with the same number and its own housing figures.
Or call: the number at the top of this page is answered 24/7.
Drafted with AI help from public storm, housing and licensing records, fact-checked against those records and reviewed by the Roofers Hotline team · Last reviewed · How we write these pages