Roofing Cost Calculators
Know Your Numbers Before You Hire

A full roof replacement typically costs $8,000–$25,000 for an average 2,000 sq ft home. Asphalt shingles run $5,000–$12,000 installed, metal roofing $10,000–$30,000, and tile or slate $20,000–$50,000+. Cost depends on roof size, pitch, material, and your region. Use our Roof Replacement Cost Calculator to get a number specific to your home.

Lifespan varies by material: 3-tab asphalt shingles 15–20 years, architectural shingles 25–30 years, metal roofing 40–70 years, tile (concrete or clay) 50+ years, and natural slate 75–150 years. Regular maintenance — annual inspections, gutter cleaning, and prompt repairs — extends any roof's lifespan significantly.

A roofing square equals 100 square feet of roof surface. It is the standard unit roofers use to price jobs and order materials. A 2,000 sq ft footprint home with a medium pitch typically has 22–26 squares of actual roof surface once pitch is factored in. Our Roofing Squares Calculator handles this math automatically.

Repairs make sense when damage is isolated — a few missing shingles, a small leak around flashing, or minor storm damage under 20% of the roof. Replacement is the better investment when shingles are curling or granule-bare across large areas, when the roof is within 5 years of its expected lifespan, or when repair costs exceed 50% of a full replacement.

Yes — significantly. A steep pitch (8/12 or higher) adds 20–40% to labor costs because roofers need safety equipment and work more slowly. Pitch also increases the actual roof surface area relative to your home's footprint. Our calculators apply pitch multipliers automatically so your estimate reflects reality.

For most homeowners planning to stay 15+ years, yes. Metal roofing costs 2–3x more upfront than architectural shingles but lasts 2–3x longer. It also reduces cooling costs by 10–25%, has minimal maintenance, and handles extreme weather better. Standing seam metal offers the highest durability and the longest lifespan of all metal options.

Minor roof repairs typically cost $150–$500 for simple fixes like replacing a few shingles or resealing flashing. Moderate repairs run $500–$1,500. Repairs involving structural damage or large areas can reach $1,500–$5,000+. Acting quickly prevents small leaks from becoming costly interior and structural damage.

Three bundles of standard architectural shingles cover one roofing square (100 sq ft of roof surface). Measure your roof's square footage, adjust for pitch, add 10–15% waste, then divide by 100 and multiply by 3. Our Asphalt Shingle Calculator does this automatically, including starter strips and ridge cap in the total.

TPO (Thermoplastic Polyolefin) is a single-ply reflective membrane and the most popular flat roofing material today. It costs $5–$9/sq ft installed, offers excellent UV resistance and energy savings, and typically lasts 20–30 years. It is generally the best value option for most residential and commercial flat roofs. EPDM is a strong alternative in colder climates.

Most municipalities require a permit for a full roof replacement (tear-off and re-roof). Repair jobs typically do not. A licensed roofing contractor should pull the permit for you — it should be included in the job cost. Unpermitted roof replacements can cause issues during home sale inspections and may void your homeowner's insurance for related claims.