When a Janesville roof is past fixing, Martin Exteriors Roofing & Siding tears it off and builds a new one from the deck up. We have served the Stateline since 2006 from our Roscoe office at 11704 Main St, about 35 minutes down I-39/90. Call (815) 624-6278 any time. Someone picks up 24/7, and the roof inspection is free.
Which Roof Is Your Janesville House On?
Census estimates for 2020 to 2024 put the median Janesville home at 1972, and the 1970s were the city’s busiest decade for new houses, with about 17% of today’s homes built then. Add the 1960s and roughly a third of Janesville went up in those twenty years. Most houses from that stretch have already been reroofed at least once.
A second wave is coming due behind them. About 22% of Janesville homes were built from 1980 through 1999, and plenty of them still wear the roof the builder put on. A first roof tends to give out all at once: curled tabs, bare patches on the sunny slopes and shingles that crack instead of bend when the weather turns cold.
Mid-Century Ranches on the East and North Sides
The long, low ranches on Janesville’s east and north sides are simple roofs, which is good news on tear-off day. A straightforward ranch usually takes a day on site. The catch is the attic. Many ranches from the 1960s and 1970s were built with little intake venting at the eaves, and a short-vented attic bakes shingles in summer and helps ice build along the edges in winter.
So when we replace a ranch roof, the attic gets as much attention as the shingles. We check intake at the soffits and exhaust up high, and if the balance is off, we correct it as part of the job. Our attic ventilation page explains how. We also look hard at the porch and family room additions many ranches picked up over the years, because the joint where an addition meets the house needs its flashing done right.
Older Two-Stories Near Downtown
Roughly 1 in 7 Janesville homes predates 1940, many of them on Courthouse Hill and the streets near the Rock River downtown. These are tall houses with steep pitches, dormers, chimneys and short valleys. They take longer than a ranch, and we tell you that before we start.
Tear-off on a house that old often turns up more than one layer of shingles, or board decking underneath. Your written estimate spells out how any replaced decking is priced, so the day brings no surprises. Old flashing at every chimney, dormer and sidewall comes off with the shingles, and new flashing goes on with the new roof.
What Goes Into a New Janesville Roof
Every replacement is a full roof system, not just new shingles. All old layers come off down to the deck and soft boards get replaced. Then come ice and water barrier along the eaves and in the valleys, underlayment, drip edge, new flashing, vents and your shingles, installed the way the manufacturer specifies. Many homeowners pick architectural asphalt shingles for the thicker, layered look.
On a brick ranch, the shingle color carries the whole front of the house. We bring full-size samples so you can see them against your brick, trim and siding in daylight before you choose.
Warranty and Paying for It
As a GAF Master Elite contractor, a status GAF gives to fewer than 2% of roofing contractors, we can offer a 50-year GAF warranty with up to 30 years on workmanship on qualifying roofs (GAF eligibility rules apply). Financing is available with payments as low as $149/month for qualified buyers. If you want to know what moves the price of a roof, our roof replacement cost guide walks through it.
A Roofer With a Track Record
Martin Exteriors holds GAF Master Elite status with 2-Star President’s Club recognition. We have made the Inc. 5000 four times (2021 to 2024), and we were voted What Rocks Rockford Best Roofer, 6 years running (2020 to 2025). We install year-round, and the phone is answered 24/7.
Other Janesville Pages
Start at our Janesville roofing page for everything we do in town. If one spot is leaking and the rest of the roof is sound, see Janesville roof repair. After a storm, our hail damage roof repair in Janesville page covers what to look for. Our main roof replacement page shows how we build every roof. Ready for a look? Schedule your free inspection or call (815) 624-6278. Just north, see roof replacement in Milton.
Janesville Roof Replacement FAQ
Why does my Janesville ranch need attic venting work with a new roof?
Many 1960s and 1970s ranches were built with little intake at the eaves. Without it, heat and moisture sit in the attic, which wears shingles faster and helps ice form at the edges. We check intake and exhaust on every replacement and fix what is short.
Can you replace a roof in Janesville in the winter?
Yes. We install year-round. Cold days call for extra care when handling and sealing shingles, and we watch the forecast closely, so weather can move your start date.
How do I choose a shingle color for a brick house?
Look at the brick in daylight and pick a shingle that shares one of its darker tones. We bring full-size samples to your Janesville home so you can hold them against the brick, trim and siding before you decide.
Is chimney flashing replaced with a new roof?
Yes. When we replace a roof, the old flashing at chimneys, dormers and walls comes off and new flashing goes on. On Janesville’s older two-stories, that is often where the old roof was letting water in.
Which GAF warranty can my new Janesville roof get?
As a GAF Master Elite contractor, we can offer a 50-year GAF warranty with up to 30 years on workmanship on qualifying roofs (GAF eligibility rules apply). GAF decides which roofs qualify, and we go over your options with you at the estimate.
