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🏠 Roof Replacement Cost Calculator

Estimate full roof replacement cost by square footage, material type, pitch, and location — material and labor included

Who Should Use This

Homeowners planning a full roof replacement, insurance claimants, and anyone budgeting before getting contractor quotes.

Purpose

Calculate total roof replacement cost including tear-off, decking repair, underlayment, materials, and labor based on your roof size and material choice.

Example

A 2,000 sq ft home with a 6/12 pitch and architectural shingles typically costs $9,000–$15,000 for a full replacement — about $4.50–$7.50/sq ft.

Roof Replacement Details

💡 Pro Tip: Get at least 3 quotes from licensed roofing contractors. The calculator estimates are based on national averages — actual costs vary by region, contractor, and site conditions.

Estimates only. Roofing costs vary by region, contractor, and site conditions. Always get 3 quotes from licensed roofing contractors.

Replacement Cost Estimate

Total Replacement Cost

$— – $—

— sq ft roof area

Cost Per Square Foot (Installed)

$— – $—

All-in installed cost per square foot

Cost Breakdown

Roofing Material$—
Installation Labor$—
Tear-Off & Disposal$—
Underlayment & Ice Shield$—
Flashing & Ridge Cap$—

Roof Details

Footprint Area
Roof Squares
Actual Roof Area (with pitch)
How It Works

4 Steps to Your Estimate

1
Enter House Size

Input your home's footprint length and width to calculate roof area.

2
Choose Pitch & Material

Select roof pitch and your preferred roofing material from asphalt to slate.

3
Set Story & Tear-Off

Specify number of stories and existing layers to remove for accurate labor costs.

4
Get Full Estimate

See total cost with material, labor, tear-off, underlayment, and flashing breakdown.

Roof Replacement Cost Factors

The biggest cost drivers are material type and roof size. Architectural asphalt shingles dominate the market — they offer a 25–30 year lifespan at a fraction of the cost of premium materials. Metal and tile cost 2–5x more upfront but last 2–3x longer.

Roof pitch significantly affects labor. A 6/12 pitch (standard) costs 10–20% more to install than a low-slope roof. Pitches above 10/12 require safety harnesses and specialist crews, adding 30–45% to labor costs.

Tear-off adds $1–$2 per square foot. Most areas allow two layers of shingles — if you already have two layers, a full tear-off is required by code before a new roof can be installed.

When to Replace vs. Repair

Replace your roof if it meets any of these criteria:

  • Age: Asphalt shingles older than 20–25 years
  • Widespread damage: More than 30% of shingles damaged
  • Granule loss: Bare spots in gutters or on shingles
  • Sagging: Any deck sagging indicates structural damage
  • Multiple leaks: Recurring leaks in different areas
  • Rising energy bills: Poor attic ventilation often signals roof failure

A new roof typically increases home value by $15,000–$25,000 and offers a 60–70% ROI at resale.

Roofing Guide

Roofing Material Comparison

Lifespan, cost, and best-use for every major roofing material

🏠

Architectural Shingles

Best value for most homes. 25–30 year lifespan. $4.50–$7/sq ft installed. Wind-resistant up to 110–130 mph. Available in hundreds of colors. Class A fire-rated. The go-to choice for 80% of residential re-roofing.

⚙️

Metal Roofing

40–70 year lifespan. $7–$18/sq ft installed. Excellent for high-wind and snow-prone areas. Energy-efficient — reflects solar heat. Minimal maintenance. Higher upfront cost but lower lifetime cost than asphalt.

🏛️

Tile Roofing

50–100+ year lifespan. $9–$25/sq ft installed. Concrete tile is more affordable; clay tile is premium. Excellent in hot, dry climates. Heavy — requires structural reinforcement. Common in Southwest and Florida.

🪨

Natural Slate

75–150+ year lifespan. $15–$35/sq ft installed. The premium option — historically beautiful, extremely durable. Very heavy (requires structural evaluation). Limited contractors. Best for high-end historic homes.

🌲

Wood Shake

20–30 year lifespan. $7–$14/sq ft installed. Natural cedar or redwood. Requires annual maintenance and treatment. Not suitable for high fire-risk areas. Many HOAs prohibit — check before buying.

📋

Warranty Tips

Material warranties cover defects — look for 30-year or lifetime shingle warranties. Workmanship warranties (2–10 years) cover installation defects — equally important. Manufacturer-certified contractors often provide extended system warranties.

Common Questions

Roof Replacement FAQ

A roof inspection by a licensed contractor is the best way to determine this. General guidelines:

  • Repair: Damage to less than 30% of the roof, isolated leaks, missing shingles in one area, roof is less than 15 years old
  • Replace: Multiple leaks in different areas, shingles older than 20 years, granule loss throughout, sagging deck, damage over 30% of the roof area

If repair cost exceeds 30% of replacement cost, replacement is usually more economical long-term.

Late spring through early fall is ideal — warm temperatures help shingles seal properly. Avoid installation in freezing temperatures (below 40°F), as shingles become brittle and don't seal correctly.

  • Best months: May through October in most US regions
  • Best deals: Late winter / early spring — contractors are less busy
  • Avoid: Peak storm season (hurricane/hail season) when demand and prices spike

You don't need to stay home, but consider:

  • Noise is significant — a full crew on a tear-off is very loud
  • Debris can fall around the home — keep children and pets inside or away
  • Someone should be reachable for decisions on discovered damage
  • Do a walkthrough at end of day — inspect for nail cleanup in yard and driveway
  • Get 3+ quotes: Prices vary 20–40% between contractors
  • Avoid peak season: Schedule in late winter for off-season discounts
  • Check insurance: Hail or wind damage may be covered
  • Consider manufacturer programs: Some offer financing or rebates
  • Bundle with gutters: Replacing gutters at the same time saves mobilization costs
  • Keep the same material: Switching materials often requires structural changes