A new roof in Janesville typically costs between $6,000 and $18,000 depending on the size of your home, the roofing material chosen, and the complexity of the job. Asphalt shingle roofs — the most common choice in Rock County — generally run $7,000–$12,000 for an average-sized house. Metal roofing and architectural shingles cost more but offer a longer lifespan. Most Janesville roofing contractors offer free estimates, so compare at least two or three quotes before deciding.

Signs that a repair may be enough: isolated missing shingles, a single leak around a flashing or pipe boot, or granule loss on one section. Signs you likely need a full replacement: the roof is 20+ years old, widespread granule loss, sagging sections, daylight visible through the attic, or multiple leaks after a storm. A Janesville roofing contractor can inspect your roof for free and advise whether a repair or replacement makes financial sense for your situation.

Yes — most experienced roofing contractors in Rock County are familiar with the insurance claims process and can work directly with your adjuster. After a storm, a reputable roofer will document damage, provide an itemized estimate that matches your claim, and coordinate with your insurance company. Ask any contractor you contact whether they have experience with hail or wind damage claims in Janesville.

Architectural (dimensional) asphalt shingles are the most popular roofing material in Janesville and Rock County due to their balance of cost, durability, and appearance. They typically last 25–30 years in Wisconsin's climate. Metal roofing (steel panels or standing seam) is growing in popularity for its 40–70-year lifespan and energy efficiency. Cedar shake, tile, and flat TPO or EPDM membranes are used on specific home styles and commercial buildings.

Most residential roof replacements in Janesville are completed in one to two days, depending on the size and complexity of the roof. Larger homes, roofs with multiple valleys or dormers, or projects requiring deck replacement may take two to three days. Weather is the main variable — Janesville roofing crews will typically reschedule around rain to protect the open deck.

Wisconsin does not issue a state-level roofing contractor license, but contractors working on homes must hold a valid Dwelling Contractor Qualifier (DCQ) certification from the Wisconsin Department of Safety and Professional Services (DSPS). Always verify that your roofing contractor carries general liability insurance and workers' compensation coverage before work begins. Reputable Janesville roofers will provide proof of insurance upon request.