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Roof Replacement Cost

Roof replacement cost depends on more than the size of the roof. Pitch, tear-off, decking repairs, flashing, ventilation, material choice and access can all shift the final bid.

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PROJECTCOSTWISE PLANNING EXAMPLE

2,000 sq ft roof replacement

$11,000–$22,000

Based on the estimator’s current editable assumption of $5.50–$11 per sq ft for this project type before complexity adjustments. This is a planning example, not a contractor quote. Local pricing and actual bids can vary significantly.

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How much does roof replacement cost?

Quick answer: Using ProjectCostWise’s current editable $5.50–$11 per-square-foot starting assumption, a 2,000 sq ft roof at standard complexity produces an $11,000–$22,000 planning range. Roof pitch, tear-off, decking damage and the rate assumptions you use can materially change the result. See exactly how the calculation works.

What affects roof replacement cost?

The most useful budget starts with scope, not a single average price. For this project, the following items deserve attention when you compare estimates and contractor proposals:

  • Roof size, pitch and number of planes
  • Number of existing layers to remove
  • Decking condition and repair needs
  • Shingle, metal or other roofing material
  • Flashing, valleys, penetrations and ventilation
  • Dump fees, access, staging and local labor

Three ways the scope can change the budget

Lighter scope

A simpler replacement may involve a straightforward roof shape, one tear-off layer, sound decking and standard materials.

Standard scope

A standard project may include multiple roof planes, routine flashing replacement, ventilation improvements and minor decking repairs.

Higher-complexity scope

A complex roof can involve steep slopes, many valleys, difficult access, extensive rotten decking, specialty materials or detailed flashing.

How to use a planning estimate

Start with a realistic project size and complexity, then use the ProjectCostWise range as a planning checkpoint. The goal is not to predict an exact bid. It is to understand whether your desired scope and available budget are in the same neighborhood before you spend time collecting proposals.

When contractor bids arrive, compare the scope line by line. A lower price can reflect fewer materials, less prep, omitted permits, smaller allowances or a different interpretation of the work. A higher price can include more complete preparation, better-defined materials or work that another bid leaves as an extra.

Questions to ask before choosing a contractor

  • Is tear-off and disposal included?
  • How much decking repair is included before extra charges apply?
  • Which underlayment, flashing and ventilation products are specified?
  • What workmanship and manufacturer warranties apply?
  • How will landscaping, gutters and property be protected?
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Enter your ZIP code, project size and complexity. After you calculate, you can keep the free planning range, purchase the detailed $9.99 project report, or request contractor quotes when you are ready.

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Frequently asked questions

How much does roof replacement cost?

ProjectCostWise currently uses an editable planning assumption of $5.50–$11 per square foot for roof replacement, before complexity adjustments.

Does roof square footage equal house square footage?

Not necessarily. Roof area can be larger because of pitch, overhangs, attached sections and roof geometry.

What can cause a roofing bid to rise after tear-off?

Unexpected decking damage is a common reason. A good proposal should explain how additional sheathing or structural repairs will be priced.

PLAN FIRST

Estimate, compare, then request real bids

ProjectCostWise planning estimates are educational and adjustable. They do not replace an onsite inspection or a contractor’s written proposal.