Roof Cost Estimator

A roof cost estimator helps homeowners understand how much a new roof will cost before contacting contractors. By entering your home's footprint, roof pitch, material preference, number of stories, and whether old material needs to be torn off, the estimator produces a realistic budget range based on national cost data — giving you a solid baseline before you solicit quotes.

Roofing is measured in "squares" — one square equals 100 square feet of roof surface. The actual roof surface area is always larger than the house footprint because of the pitch (slope). A standard 6/12 pitch increases the area by about 12%, and steeper pitches increase labor costs significantly since workers must use safety equipment and move more slowly on steep slopes.

A new roof is one of the largest maintenance expenses a homeowner faces, typically running $8,000–$25,000 for an average home depending on material and region. However, it also provides one of the strongest returns on investment among home improvements: a new roof replacement recoups approximately 60–68% of its cost at resale according to Remodeling Magazine's Cost vs. Value report, and in many markets a new or recently replaced roof is a prerequisite for buyers — and sometimes for homeowner's insurance.

Fill in the inputs below to generate your cost estimate:

1. Enter your house footprint. This is the ground-floor square footage — not your total living area. For a two-story home, enter only the first-floor footprint, then select "2 Stories" so the calculator applies the correct accessibility and labor multiplier.
2. Select roof pitch. Pitch is expressed as rise-over-run (e.g., 6/12 means 6 inches of rise for every 12 inches of horizontal run). If you don't know your pitch, a flat or gently sloping roof usually indicates 4/12 or less, while a steep-looking traditional house often has a 8/12 or 10/12 pitch. Steeper pitches require more material and take longer to install.
3. Choose roofing material. The material comparison table below the results lets you compare all options at your roof's size. Architectural shingles are the most popular choice for their balance of cost, appearance, and 25–30 year lifespan.
4. Specify tear-off. Overlaying new shingles over old ones saves $1–$2 per square foot but is generally only permitted once (most codes prohibit triple-layer roofs). Tear-off also lets the contractor inspect and repair the underlying decking.
5. Select your regional cost tier. Labor and material costs vary substantially by location. Rural midwest markets are often 20–30% below national averages, while coastal metro areas like New York or San Francisco can run 30–40% above.

• 3-Tab Asphalt Shingles are the lowest-cost option, with a lifespan of 15–20 years. They've become less popular as architectural shingles have come down in price, but they remain a viable choice for budget-constrained projects on properties not expected to be long-term holds.
• Architectural (Dimensional) Shingles are the most popular roofing material in the US. They last 25–30 years, have a more dimensional appearance that improves curb appeal, and are competitively priced at $400–$600 per square installed.
• Metal Roofing offers exceptional longevity (40–70 years), energy efficiency benefits (reflects solar radiation to reduce cooling costs), and strong appeal in certain architectural styles. Higher upfront cost but substantially lower lifetime cost.
• Clay and Concrete Tiles are durable (50+ years), fire-resistant, and attractive in Mediterranean and Spanish-style homes. They're heavy — requiring a structural assessment to confirm the roof framing can handle the weight — and expensive to install and repair.
• Slate is the premium choice: natural stone tiles that last 75–150 years and look distinctive. Installation cost is high and repairs require specialty contractors, but a slate roof can last longer than the house itself.
• Cedar Shakes offer natural beauty and insulation properties, but require regular maintenance to prevent moss, algae, and rot. They're best suited to dry climates. Many fire-prone areas now restrict wood roofing materials.