DMR Exteriors
- Roofing Contractor serving Janesville, Wisconsin — based at 6811 W Thornapple Dr, Janesville, WI 53548.
- Typical jobs: emergency repair, storm damage repair, roof repair, roof replacement, roof inspection.
Services Offered
Checking DMR Exteriors against the Wisconsin record
Wisconsin roofing-license requirements are not yet covered by our verification program — confirm licensing and insurance with your city or county building department
- The registry name, the contract name and the truck lettering should all agree; the status should be active.
- Look at the expiration date and compare it with the dates in your contract.
- Request a current certificate of insurance from the insurer; licenses and insurance are checked separately.
- Open the registry and search by license number first, business name second.
Storm history for Janesville, Rock County
Since 2017, NOAA has recorded 63 hail entries in Rock County. Hail of coin size or larger was reported on 19 separate days. 3 of those days had golf-ball hail or larger. The biggest stone was 2.75 inches, about a baseball. Golf-ball hail was last logged in the file in 2026.
15 tornadoes show up in the file too, strongest rated EF2.
Date your photos after each hail day and keep them. A written inspection from DMR Exteriors or any other roofer is worth asking for before work starts.
The bulk of the hail here arrives in spring and summer: 68 percent from April to July, 31 percent in April. 5 calendar months each hold under 2 percent of reports.
Within 25 miles of Janesville, the last 90 days produced 0 NOAA hail reports.
The strongest logged thunderstorm gust is 85 mph.
| Measure | Value |
|---|---|
| Density rank in state | 8 of 50 |
| Peak gust, mph | 85 |
| Reports in April to July | 68% |
| Days with hail at 1.75 inches or more | 3 |
| Hail reports, all years | 74 |
| Hail reports since 2017 | 63 |
The biggest day on file is April 18, 2025: a 2.75-inch stone, about the size of a baseball, reported near Evansville.
| Calendar year | Entries | Top size, in |
|---|---|---|
| 2014 | 5 | 1.75 |
| 2016 | 4 | 1 |
| 2022 | 9 | 2 |
Housing around Janesville
The median home in Janesville went up in 1972, so the typical house is 54 years old. Against a median home value of $209,700, a $10,575 mid-range asphalt roof is 5 percent of the house. Pre-1980 construction makes up 63.2 percent of homes in Janesville.
| Measure | Value |
|---|---|
| Median home value | $209,700 |
| Typical household income | $71,664 |
| Pre-1980 homes | 63.2% |
| Median build year | 1972 |
| Housing units | 29,171 |
Roof prices in Janesville
The Janesville multiplier is below 1, about 6 percent lower than the national basis, giving $6,580 to $14,570 for asphalt shingles. Per year of service, metal often costs less than shingles even at a higher price; the last column of the table shows it. Labor is part of the bill: the BLS median for roofers in the Janesville-Beloit, WI Metro Area is $63,310 a year.
| Material | Price range | Typical life | Yearly cost |
|---|---|---|---|
| Concrete Tile | $14,100 to $25,380 | 40 to 50 yr | $440 |
| Standing Seam Metal | $22,560 to $37,600 | 50 to 70 yr | $500 |
| Metal Shingles | $13,160 to $22,560 | 35 to 50 yr | $420 |
| Cedar Shake | $13,160 to $24,440 | 20 to 30 yr | $750 |
| Architectural Asphalt Shingles | $8,460 to $14,570 | 25 to 30 yr | $420 |
| 3-Tab Asphalt Shingles | $6,580 to $10,810 | 15 to 20 yr | $500 |
Asked about roofing in Janesville
- Where can I look up the license for DMR Exteriors?
- Use the steps above with the Wisconsin registry. Match the exact name, read the status and the expiry, then ask for an insurance certificate.
- What does a new roof cost in Janesville?
- Plan on $6,580 to $14,570 for asphalt shingles on a 2,000 square foot roof here, about $10,575 in the middle. Other materials are in the cost table.
- Does hail damage have to be fixed right away?
- Do not wait for a leak. A short inspection after the storm documents the damage while the date is fresh.
- What is the typical house age in Janesville?
- Median year built is 1972, which gives 54 years. A roof is younger than the house if it was replaced.
- Which months bring hail to Rock County?
- Spring and early summer carry most of it: 68 percent of entries come between April and July, April first at 31 percent.
- Is hail common around Janesville?
- Since 2017 the county has 63 reports; hail of 1 inch or more came on 19 of those days, mostly in April.
More Roofing Services in Janesville, WI
Own this business? Correct or claim this listing · Get a badge for your website · Report an error / request removal