How to Compare Roof Replacement Estimates: A Scope Checklist

Start with the same roof areas

Write down the areas each proposal covers: the main roof, porch, garage, addition and any adjoining low-slope section. Ask the contractor to identify boundaries on a photo or simple sketch. Confirm how connections between roof sections are addressed.

Compare the proposed work rather than a single measurement or shingle count. Access, roof shape and existing layers can affect the scope. If one estimate excludes a small roof section, keep that difference visible when comparing the totals.

• Which roof sections are included?
• Which sections or structures are excluded?
• How are transitions to adjoining roofs handled?

Separate removal from hidden deck repairs

Ask how many existing roofing layers the estimate assumes will be removed and what happens to the debris. Then discuss the roof deck beneath them. Its full condition may only become visible after the covering is removed.

Before work starts, ask how additional deck repairs would be measured, priced, documented and approved. A clear allowance or pricing basis helps you understand an update without assuming that every sheet of decking needs replacement.

• Removal and disposal included?
• Any deck repair allowance clearly defined?
• Photos and written approval for additional work?

Compare the system beyond the shingles

Ask each contractor to name the proposed shingle and explain the associated underlayment, leak protection, starter and ridge components. Request a description of flashing work around chimneys, walls and roof penetrations. “As needed” deserves a discussion about how the need will be assessed.

For ventilation, ask what existing intake and exhaust paths will be reviewed and what the proposed scope changes. Keep product choices and the reasons for them together so an alternative estimate can be compared fairly.

• Named roofing products and proposed components?
• Flashing replacement or reuse explained?
• Ventilation assessment and changes described?

Include site protection and project paperwork

A complete discussion includes access, delivery, protection of surrounding areas, debris handling and cleanup. Tell the contractor about a narrow driveway, landscaping, shared access or anything that may affect where materials and equipment can go.

Ask who will check whether permits or inspections apply to your particular work. Compare the written payment schedule, expected project sequence and warranty documents too. Do not assume that a general promise of a new roof answers those questions.

• Property protection and cleanup described?
• Permit and inspection responsibility identified?
• Payment schedule and warranty documents supplied?

Make a simple comparison sheet

Use one column for each estimate and a row for each item below. Record the actual proposal wording or mark it “ask contractor.” Keep allowances, exclusions and optional upgrades separate from the agreed base work.

After the conversation, request a revised written scope for any important clarification. Keep that version with the product information and estimate so you are comparing the same understanding when you make a decision.

• Included roof areas and removal layers
• Deck repair allowance or pricing basis
• Products, flashing and ventilation
• Protection, disposal and cleanup
• Exclusions, optional work and change approval
• Payment schedule and warranty documents

Take the unresolved differences to your next call

Choose the two or three differences that most affect your home and ask the contractor to explain them. For example: “This proposal includes the porch roof; does yours?” or “What documentation would I receive if damaged decking is uncovered?”

Sweet Home can discuss a roof replacement estimate for your property. Share the roof areas, your concerns and any photos you can take safely from the ground. The written proposal should identify the work offered for your home.