Roof Replacement Cost in Janesville, Wisconsin (2026)

Estimates apply Janesville's local cost index (0.94× national base rates) to typical U.S. roofing costs. Starting ranges, not quotes. Updated June 2026.

Janesville, WI sits in southern Wisconsin with a climate that delivers genuine roofing punishment across all seasons. The record high of 103 F and record low of -31 F produce extreme thermal range that cycles sealants and metal flashing through expansion and contraction. Average annual snowfall of 36.6 inches is the dominant structural stressor: heavy frontal snow events load flat and low-slope roofs while repeated melt-refreeze cycles form ice dams that force water under shingles. Spring and summer thunderstorms bring hail and straight-line wind risk common across southern Wisconsin, adding granule loss and wind-uplift exposure to the seasonal damage profile.

$10,575Avg asphalt shingles
$26,790Avg metal roof
1–3 daysTypical install time
FreeEstimates from local contractors

How Much Does Roof Replacement Cost in Janesville?

Asphalt-shingle replacement in Janesville, Wisconsin runs $6,580 to $14,570 (2,000 sq ft, tear-off and underlayment included). That is the national base range scaled by Janesville's labor-and-materials index of 0.94× — 6% below what the same job costs nationally, in a county NOAA credits with 39 hail events over the last 10 years.

Janesville's 2020 census population was 65,615. After the General Motors Assembly Plant -- the oldest GM plant in North America prior to closing -- shut down in December 2008, the economy shifted toward healthcare and public sector anchors including Mercy Health System and the Janesville School District. The closure left a large industrial building stock requiring ongoing maintenance and re-roofing, while the surrounding residential neighborhoods hold aging housing that drives demand for residential contractors.

Cost by Roofing Material in Janesville

MaterialAvg Installed Cost (2,000 sq ft)Lifespan
3-Tab Asphalt Shingles$6,580–$10,81015–20 years
Architectural Asphalt Shingles$8,460–$14,57025–30 years
Metal (Steel/Aluminum)$15,980–$28,20040–70 years
Standing Seam Metal$22,560–$37,60050–70 years
Concrete Tile$14,100–$25,38040–50 years
TPO / EPDM Flat Roof (per 1,000 sq ft)$3,760–$7,52015–25 years

Janesville vs the Wisconsin Average

Janesville's cost index is 0.94× national base rates, against a median of 0.94× across the Wisconsin markets PickARoofer tracks. A typical asphalt-shingle replacement in Janesville therefore runs about right at the state median. Contractor supply matters too: PickARoofer lists 22 active roofing contractors in Janesville, versus a median of 23 per covered Wisconsin city — a thinner market, so comparing at least two quotes matters more here.

How Janesville Compares to Nearby Wisconsin Cities

CityDistanceAsphalt replacement (2,000 sq ft)Contractors (verified)Hail events, 10 yr
Janesville (this page) $6,580–$14,570 22 (0) 39
Kenosha ≈61 mi $6,580–$14,570 29 (0) 11
Racine ≈63 mi $6,580–$14,570 22 (0) 18
Oshkosh ≈93 mi $6,580–$14,570 22 (0) 13
Appleton ≈113 mi $6,580–$14,570 25 (0) 59
Green Bay ≈136 mi $6,580–$14,570 27 (0) 26
La Crosse ≈137 mi $6,580–$14,570 21 (0) 63

Cost indexes barely move across this corridor, so the ranges above track each other — what separates these markets is supply and storm exposure. Kenosha, the closest at about 61 miles, lists 29 contractors against Janesville's 22, and its county logged 11 hail events to Janesville's 39 over the same decade. A quote that ignores those local factors deserves a follow-up question.

Roof Repair Costs in Janesville

Minor repairs — leak patches, flashing work, emergency tarps — are priced per job and vary far less between metros than full replacement. See the national roof repair cost table for typical U.S. benchmarks, then get a free local quote above for a Janesville-specific number.

Hail History in Janesville — and What It Means for Your Roof Budget

39Hail events in the county, last 10 years (NOAA)
2.00″Largest recorded hailstone
2024-06-25Most recent recorded event

NOAA Storm Events data shows 39 hail events in Janesville's county over the last 10 years, with hail up to 2.00″ (most recent on record: 2024-06-25). Stones that size punch through shingles rather than bruise them. At 39 events in a decade, Janesville roofs live on an insurance cycle: quotes here should price impact-resistant Class 4 shingles (10–20% more upfront, often offset by an insurer premium discount) and you should know your wind/hail deductible before the next storm, not after. Check your own address on the hail risk lookup.

Hail Events by Year in Janesville's County (NOAA)

YearRecorded hail eventsLargest hail that year
2024101.50″
202321.25″
202292.00″
202141.00″
202021.00″
201921.00″
201831.50″
201731.00″
201641.00″

Put in Wisconsin context: Janesville's county logged 1.6× the hail-event count of the median Wisconsin county we track (24 events over the same 10 years) — one of the more hail-exposed roofing markets in the state, which shows up in insurer wind/hail deductibles and in how often local roofs are replaced before end-of-life.

Roofing Contractor Availability in Janesville

PickARoofer currently lists 22 active roofing contractors working Janesville, WI: 0 with a license independently verified against the official state registry, 0 with a license number on record, and 0 with an insurance certificate on file. All of them handle full replacement; repair, inspection, and storm-damage requests route through the same local directory.

Janesville Neighborhoods Served

Local roofing contractors on PickARoofer cover Janesville's key neighborhoods including Downtown Janesville, West Janesville, East Janesville Industrial Park, Janesville Lakeside, Forest Hill, across ZIP codes 53546, 53567, 53517, 53502, 53589. Roof pricing can vary within a city based on home age, roof pitch, and whether storm or hail damage is involved — getting a quote specific to your address is the only reliable estimate.

If Your Roof Damage Is Covered by Insurance

The calculation below applies only if your claim is approved and covers full replacement — check your policy. Results are estimates, not quotes. How insurance claims work →

Policy type matters: an actual-cash-value (ACV) policy pays depreciated value; a replacement-cost-value (RCV) policy covers the full replacement — your out-of-pocket differs significantly between the two. See our insurance guide for details.

Estimated out-of-pocket for asphalt shingle replacement (Janesville, if claim approved for full replacement)
Your deductible Replacement range Typical out-of-pocket
$500 $6,580–$14,570 $500–$500
$1,000 $6,580–$14,570 $1,000–$1,000
$2,500 $6,580–$14,570 $2,500–$2,500

More on Roofing Costs

Roof size, pitch, tear-off layers and material grade set the rest of the price — covered once, in depth, in the national roof replacement cost guide.