RNF Roofing Company
- Roofing Contractor serving Janesville, Wisconsin — based at 12 N Parker Dr, Janesville, WI 53545.
- Typical jobs: emergency repair, roof inspection, roof replacement, roof repair, storm damage repair.
Services Offered
Looking up RNF Roofing Company in Wisconsin
Wisconsin roofing-license requirements are not yet covered by our verification program — confirm licensing and insurance with your city or county building department
- Compare the registry name with the name on the contract, and read the status line.
- Start the lookup with the license number; use the business name only if the number fails.
- Request a current certificate of insurance from the insurer; licenses and insurance are checked separately.
- Write down the expiry and make sure it outlasts the job.
Hail and wind history for Janesville and Rock County
Rock County, the county around Janesville, has 63 NOAA hail reports on file since 2017. Reports of 1 inch or more fall on 19 days. Stones of 1.75 inches or more turned up on 3 days, and the largest stone measured 2.75 inches, close to a baseball. Golf-ball hail last appears in the file in 2026.
Most hail here arrives in spring and summer: 68 percent from April to July, 31 percent in April. In 5 months of the year, hail is rare in the record.
Adjusted for size, Rock County is number 8 of the 50 counties in Wisconsin that we compare, so it sits in the top third at 101.9 reports per 1,000 square miles.
Thunderstorm wind peaked at 85 mph in the record.
If a storm does come through, take dated photos of the roof first. Whoever you hire, RNF Roofing Company included, should put the inspection findings in writing.
0 hail reports fell within 25 miles of Janesville over the past 90 days.
| Measure | Value |
|---|---|
| Peak gust, mph | 85 |
| Hail reports, all years | 74 |
| Share of reports in April to July | 68% |
| Hail density rank in state | 8 of 50 |
| Days at 1.75 inches or more | 3 |
| Biggest stone, inches | 2.75 |
The largest single day in the record is April 18, 2025: a 2.75-inch stone, about the size of a baseball, reported near Evansville.
| Calendar year | Hail reports | Top size, in |
|---|---|---|
| 2022 | 9 | 2 |
| 2024 | 10 | 1.5 |
| 2025 | 18 | 2.75 |
The homes under these roofs
Half the homes in Janesville predate 1972; the typical house is about 54 years old. A mid-range asphalt replacement at $10,575 equals 5 percent of the median home value of $209,700. Before 1980, 63.2 percent of the housing stock went up. That is long enough for roughly 2 asphalt roof cycles, so replacement, not first install, is the usual job.
| Measure | Value |
|---|---|
| Pre-1980 homes | 63.2% |
| Typical year built | 1972 |
| Median home value | $209,700 |
| Single-family share | 73.7% |
| Homes counted | 29,171 |
What a new roof costs in Janesville
Local pricing in Janesville sits roughly 6 percent under the national basis; asphalt shingles on 2,000 square feet cost $6,580 to $14,570. BLS puts the median annual roofer wage for the Janesville-Beloit, WI Metro Area at $63,310. Census County Business Patterns counts 21 roofing firms with payroll in the county. 76.2 percent of them have fewer than 5 employees.
| Material | Price range | Lifespan | Middle of range |
|---|---|---|---|
| TPO / EPDM (Flat) | $7,520 - $15,040 | 15-25 yrs | $11,280 |
| Metal (Steel/Aluminum) | $15,980 - $28,200 | 40-70 yrs | $22,090 |
| Clay Tile | $22,560 - $37,600 | 50-100 yrs | $30,080 |
| Metal Shingles | $13,160 - $22,560 | 35-50 yrs | $17,860 |
| 3-Tab Asphalt Shingles | $6,580 - $10,810 | 15-20 yrs | $8,695 |
| Standing Seam Metal | $22,560 - $37,600 | 50-70 yrs | $30,080 |
Asked about roofing in Janesville
- What does a new roof cost in Janesville?
- Budget $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.
- What is the typical house age in Janesville?
- The median home was built in 1972, so it is 54 years old. Roof age tracks the house unless a replacement happened, and 25 years is a common asphalt life.
- Which months bring hail to Rock County?
- Hail clusters in April (31 percent), and April through July add up to 68 percent of the record.
- 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.
- How do I check RNF Roofing Company's license?
- Use the steps above with the Wisconsin registry. Match the exact name, read the status and the expiry, then ask for an insurance certificate.
- How much hail does Rock County see?
- NOAA lists 63 hail entries for Rock County since 2017, on 19 days with stones of 1 inch or larger. April is the busiest month.
More Roofing Services in Janesville, WI
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