🏠Roof Replacement Cost Calculator
🛠️Estimate Your Roof Replacement Costs
❓Frequently Asked Questions (FAQ)
This calculator provides a ballpark estimate. Actual costs vary widely by region, contractor, material quality, roof complexity, and any underlying damage found (like rotted decking).
Roof size (squares), shingle type/quality, roof complexity (steepness, hips, valleys, dormers), labor rates in your area, and whether old roofing needs removal are major factors.
One square is 100 square feet of roof area. Contractors use this unit for pricing materials and labor.
Most building codes allow a maximum of two layers of shingles. A full tear-off is generally recommended as it allows for inspection and repair of the roof deck and ensures better performance of the new roof.
This typically covers items like drip edge, flashing (around chimneys, vents, skylights), ridge vents, starter shingles, and fasteners (nails/staples).
During a tear-off, contractors might find unexpected issues like rotted or damaged decking, which will need repair at an additional cost. A contingency fund helps cover these surprises.
Labor can be 40-60% of the total project cost and varies greatly by location, contractor experience, roof difficulty, and local market conditions.
Most municipalities require a building permit for roof replacement. This ensures the work meets local building codes and safety standards. The cost is usually a few hundred dollars.
Get multiple quotes, choose standard materials if on a budget, schedule work during off-peak seasons if possible, and ensure good attic ventilation to prolong roof life. Don’t skimp on quality installation.
Common signs include missing/cracked/curled shingles, widespread granule loss, leaks or water stains on ceilings, sagging roof deck, or if the roof is past its expected lifespan (e.g., 20-25 years for standard asphalt).