How to Quote a Roofing Job (Residential Guide)

Roofing Quotes Are High-Stakes by Nature

A residential roof replacement is one of the largest single purchases a homeowner makes outside of buying the house itself. Quotes range from $8,000 to $30,000+, and the customer is comparing 3–5 bids. Your quote needs to be accurate enough to protect your margins, detailed enough to build trust, and competitive enough to win the job.

Here's how to build roofing quotes that check all three boxes.

Per-Square Pricing: The Industry Standard

Roofing is priced by the "square" — 100 square feet of roof area. A typical residential roof is 20–35 squares.

Asphalt shingle pricing (installed, per square):

• 3-tab shingles: $300–$450/square
• Architectural (dimensional) shingles: $400–$600/square
• Premium/designer shingles: $600–$900/square

Metal roofing (installed, per square):

• Standing seam steel: $800–$1,400/square
• Corrugated metal: $500–$800/square
• Metal shingles (stone-coated): $700–$1,100/square

These per-square rates should include labor, materials (underlayment, ice and water shield, flashing, ridge cap, nails), and basic waste factor (typically 10%–15% material overage).

For a 25-square roof with architectural shingles, the base quote runs $10,000–$15,000 before additional items.

Tear-Off vs. Overlay: Pricing Both Options

Overlay (adding a new layer over existing shingles) saves labor and dump fees but isn't always an option. Most building codes allow a maximum of two layers. If there's already one layer in good condition with no moisture issues, overlay is viable.

• Overlay savings: approximately $100–$150/square less than tear-off
• On a 25-square roof, that's $2,500–$3,750 in savings for the customer

Tear-off is required when:

• There are already two layers
• The existing roof has moisture damage or soft spots
• You're switching from a heavier material (like wood shake) to shingles
• Local code requires it

Tear-off costs include labor (crew of 4 can strip a standard roof in 4–8 hours) and disposal ($400–$800 for dumpster rental plus $40–$60/ton in dump fees). For a 25-square tear-off, budget $1,500–$3,000 in tear-off costs.

Always present both options when overlay is possible. Many customers will choose tear-off once they understand the longevity benefits — and you make better margin on the fuller scope of work.

Insurance Supplement: Don't Leave Money Behind

A significant percentage of residential roof replacements are insurance claims (storm damage, hail, wind). Quoting insurance work requires a different approach:

Scope the full damage. Walk the roof with the adjuster's report and identify anything they missed — ridge cap, pipe boots, step flashing, drip edge, satellite dish resets, gutter damage.

Document with photos. Before, during, and after. Insurance supplements require evidence.

File supplements for legitimate items. Adjusters often write initial estimates conservatively. Common supplement items include:

- Code upgrades (ice and water shield, drip edge, ventilation)

- Steep slope charges (anything over 7/12 pitch)

- High roof charges (3+ stories)

- Waste factor above 10%

- Starter strip and ridge cap (sometimes omitted from initial scope)

Supplements can add $1,500–$5,000+ to an insurance-funded job. This isn't padding — it's billing for work the adjuster didn't initially scope.

TradeKit's quoting system lets you build detailed line-item quotes that map to insurance supplement formats, making it easier to document and submit for additional approved amounts.

Materials: Shingles vs. Metal Decision Framework

When the customer asks "should I go metal?", help them make an informed decision:

Asphalt shingles:

• Lower upfront cost ($10,000–$15,000 for a typical home)
• 25–30 year lifespan (architectural)
• Wide color/style selection
• Easy to repair
• Familiar to most roofing crews

Metal roofing:

• Higher upfront cost ($18,000–$35,000 for a typical home)
• 50+ year lifespan
• Energy efficient (reflects heat, can reduce cooling costs 10%–25%)
• Superior wind and hail resistance
• Higher resale value

Present this comparison in your quote when appropriate. Offering both options positions you as a consultant, not just a contractor, and the customer who chooses metal doubles your revenue per job.

What Every Roofing Quote Should Include

Total squares and how you measured (drone, satellite, or physical measurement)

Material specification — exact shingle/metal product, color, warranty tier

Underlayment and accessories — ice and water shield, synthetic underlayment, flashing, vents

Tear-off scope (if applicable) and disposal

Ventilation assessment — ridge vent, box vents, soffit vents (proper ventilation is code-required and warranty-required)

Flashing details — chimney, pipe boots, wall flashing, valley treatment

Warranty summary — manufacturer material warranty + your workmanship warranty

Timeline and crew size

Payment terms — typically 50% deposit, 50% on completion (or progress billing for insurance jobs)

Quoting Mistakes Roofers Make

• Measuring from the ground. Use aerial measurement tools (EagleView, RoofSnap) or drone measurements. Ground estimates can be off 15%–20% on complex roof lines.
• Ignoring pitch adjustments. A 12/12 pitch roof has 41% more surface area than the footprint suggests. Steep roofs also require more labor time and safety equipment.
• Not pricing ventilation. Inadequate ventilation voids the shingle manufacturer's warranty. If the existing ventilation is insufficient, adding it to the quote is non-negotiable.
• Quoting a single bottom-line number. Homeowners comparing bids will trust the detailed quote over the one-line estimate every time, even if the detailed quote is higher.

The Bottom Line

Roofing quotes succeed when they're detailed, accurate, and transparent. Measure precisely, price every component, present material options, and document everything — especially on insurance jobs. The roofers who quote professionally close at higher rates and higher margins than the ones who scrawl a number on a clipboard.