Is this a roofing calculator or a builder?

This page provides a builder that lets contractors create and embed a free roofing calculator on their website. Set pricing variables, brand the widget, and connect a webhook for leads.

Can I embed the roofing calculator on my site?

Yes. Copy the provided widget code and paste it before the closing tag. The widget renders automatically and uses your configured colors, logo, pricing, and webhooks.

What costs are included in the estimate?

Labor, materials, disposal, tear-off, underlayment, waste factor, permits, overhead & profit, regional multiplier and sales tax, with pitch, complexity and stories adjustments.

Does the tool store customer data?

No. The widget posts lead data directly to the webhook URL you configure. Keep webhook authentication None and allow CORS for your domain so submissions succeed.

Free Roofing Calculator & Cost Estimator Builder

Build a roofing calculator your customers trust. Roof cost calculator, roof replacement cost calculator, and roofing cost estimator in one embeddable tool.

Free roofing calculator builder for contractors
Roof cost calculator with per-square pricing
Roof replacement cost calculator with material options
Roofing cost estimator with regional multipliers

$ 50,000+

Estimates calculated this month

1,200+

Contractors using our widget

★★★★★ 4.9

Average rating from users

Why Use This Roofing Calculator Builder?

Build a branded roof cost calculator and roofing cost estimator your customers can trust.

Instant roof replacement cost calculator — removes a step from your funnel
Accurate per-square pricing for asphalt, metal, tile, and slate
Pitch, layers, waste factor, permits, overhead & tax included
Embed the roofing calculator on any roofing website

Branding controls (logo & color), plus CRM webhook
WCAG-minded UI
Copy-paste widget, no external dependencies

How this roofing calculator estimates cost

Transparent math used by this roof replacement cost calculator.

Method: Base cost × Waste × Complexity × Pitch × Accessibility × Stories + Permits → Overhead & profit → Region → Sales tax.

Formula: Base Cost × Regional Multiplier × Complexity Factor × Material Premium (expanded using the inputs below).

Labor+ $7,000
Materials+ $2,400
Disposal+ $900
Tear-off (layers)+ $1,500
Underlayment+ $700
Waste (10%)+ $1,250
Complexity ×1.00+ $0
Pitch ×1.10+ $1,375
Accessibility ×1.00+ $0
Stories ×1.00+ $0
Permit fees+ $250
Overhead & profit (25%)+ $3,844
Region ×1.00+ $0
Sales tax (8%)+ $1,538

Total: $20,756 (±15% by default)

Notes: Costs reflect common components cited across NRCA references (labor, materials, tear-off, disposal, underlayment, permits, overhead, tax). Real jobs can vary with material availability, local codes, access, and weather.

Want more precision? Provide exact pitch, layers, stories & ZIP to tighten to ~±5%. If storm damage is involved, insurance may offset part of the replacement—ask your contractor/insurer about documentation and coverage.

Customize Calculator Variables

Adjust labor costs, material prices, and regional factors. Updates reflect in the roofing calculator widget.

Labor Per Square ($)

Tear Off Per Layer ($)

Disposal Per Square ($)

Permit Fees ($)

Underlayment Per Square ($)

Overhead & Profit (%)

Sales Tax (%)

Price Range (±%)

Waste Factor (%)

Region Multiplier

Accessibility Multiplier

Asphalt Shingles ($)

Metal Roofing ($)

Tile Roofing ($)

Slate Roofing ($)

Contractor Branding & Integration

Build and embed a roof cost calculator on your roofing website. Connect a CRM webhook.

Primary Color (HEX)

Logo URL

CTA Button Text

Quote Form Title

Quote Form Description

CRM Webhook URLPaste an HTTP endpoint that will receive leads and route them to your CRM. This calculator only connects to your webhooks and does not store data. Keep webhook auth None and allow browser CORS.

Email Webhook URL (or mailto:)Optional: an HTTP service that emails the user their estimate, or a mailto: template. For HTTP, keep auth None + CORS.

Attribute calculator to LumioForge

Adds a small note in the widget: “For premium roofing web design, AI automation & roofing website tools, visit lumioforge.com.” You can turn it off.

High Contrast

Improves contrast for WCAG AA.

Use it with or without attribution (preferred with attribution). Need advanced logic? Claim your spot.

Webhook: ✕ Not connected

For premium roofing web design, AI automation & roofing website tools, visit lumioforge.com.

Roof Details

Start with basics. Add details to tighten the roofing cost estimator range.

Current accuracy: ±5%. Want ~±5%? Add exact pitch, layers, stories & ZIP.

Roof SizeMeasured roof area

Material Type

StoriesHeight adds safety requirements

ComplexityDormers, valleys, chimneys add time

Existing Layers

Roof Pitch

UnitsSquares = 100 sq ft

ZIP Code

For premium roofing web design, AI automation & roofing website tools, visit lumioforge.com.

Roofing Cost Estimate (Preview)

Roof cost calculator range based on your selections.

LOW

$17,643

MOST LIKELY

$20,756

Best Estimate

HIGH

$23,870

$1,038 per square20 squares total

Accuracy band: ±5%.

Get Free Roofing Quote

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