Roofing Contractors: How to Hire One and What a Roof Replacement Costs

A roof replacement is one of the biggest single expenses a homeowner will face, and the contractor you choose matters at least as much as the materials. This guide covers how roofing projects are priced, the main material choices, and how to vet contractors before you sign anything.

How Roofing Projects Work

Most residential roofs use asphalt shingles, with metal, tile, and flat-roof membranes as common alternatives. A replacement usually involves tearing off the old roof, inspecting and repairing the decking underneath, installing underlayment and flashing, and then the new surface. Many jobs are completed in one to three days, depending on the roof's size and complexity.

What It Typically Costs

Price is driven by roof size and pitch, the material you choose, how many layers must be removed, and the condition of the underlying decking. Labor rates vary by region, and steep or complex roofs cost more to work on. Quotes should separate materials from labor and state exactly what is included — tear-off, disposal, underlayment, flashing, and vents.

Things to Consider

• Licensing, insurance, and workers' compensation coverage — verify, don't take their word for it.
• The difference between the manufacturer's warranty on materials and the contractor's warranty on workmanship.
• How they handle weather delays and protect your home if a storm hits mid-project.
• Whether the quote includes replacing flashing, vents, and gutters where needed.
• Payment schedule: large upfront deposits are a warning sign.

Questions Worth Asking

• Are you licensed and insured, and can I see proof?
• What does your workmanship warranty cover, and for how long?
• Who will actually be on my roof — your crew or subcontractors?
• What happens if you find damaged decking once the old roof is off?