Printable planning tool
Roof quote comparison checklist
Compare the same five scope categories across three proposals. Every field starts at Not reviewed; change it only after checking the written quote.
Published roof replacement cost ranges describe different scopes
HomeGuide publishes an average asphalt-shingle project range based on its research and member-reported project costs. Angi publishes a separate project average, a much broader low-to-high context, and an average per-square-foot range across roofs that vary by size, material, height, pitch, and location.
These figures are not one official price. Ramefor displays them independently and does not average their endpoints. A broad multi-material dataset and an asphalt-focused project range can both be accurate for the populations and scopes each publisher describes.
| Published reference | Value | What it measures |
|---|---|---|
| Published asphalt-shingle project rangeHomeGuide · Average cost of a new roof | $5,700–$16,000 | HomeGuide's average project range for asphalt-shingle replacement. |
| Reported roof-replacement averageAngi · Cost Insights and article introduction | $9,607 | Angi's reported project average; not a Ramefor midpoint. |
| Published broad project rangeAngi · Article introduction | $5,902–$46,000 | Angi's broad project context across unlike roof sizes, materials, pitches, heights, and locations. |
| Published roof-replacement range per square footAngi · Roof Replacement Cost by Size | $4–$11/sq ft | Angi's broad unit reference; it does not feed the material-specific calculator. |
The calculator adds published components instead of blending headlines
The calculator uses HomeGuide's material-only asphalt rows, its replacement-labor row, and—when selected—its old-roof-removal row. All three use the same roofing-square unit. Material cost uses the waste-adjusted whole-bundle order; labor and removal use measured roof surface before waste.
This is a narrow component model, not a promise that every complete roofing system fits inside the result. HomeGuide's separate total, headline, and installed-per-square-foot ranges remain visible context and never become hidden correction factors.
| Published reference | Value | What it measures |
|---|---|---|
| Asphalt 3-tab shingles, material onlyHomeGuide · Roofing material prices > roof-type table | $80–$130/roofing square | Material only; the calculator applies it to whole-bundle order quantity. |
| Architectural shingles, material onlyHomeGuide · Roofing material prices > roof-type table | $100–$250/roofing square | Material only; the calculator applies it to whole-bundle order quantity. |
| Replacement laborHomeGuide · Roof replacement cost calculator > factors table | $200–$350/roofing square | Replacement-labor component applied to measured roof squares. |
| Old-roof removalHomeGuide · Roof replacement cost calculator > factors table | $100–$300/roofing square | Optional removal component applied to measured roof squares. |
| Published replacement-components totalHomeGuide · Roof replacement cost calculator > factors table | $400–$900/roofing square | Source-published comparison total; not a hidden cap or multiplier. |
Footprint and actual roof area are not the same measurement
A home's floor area can include several stories and is not a roof measurement. A building footprint or horizontal roof-plan area is closer, but sloped planes cover more surface. For one uniform pitch, the calculator uses the geometric slope factor √(12² + rise²) ÷ 12. A 6:12 roof therefore has more surface than its horizontal projection.
That conversion still cannot see eaves, overhangs, dormers, valleys, hips, intersecting planes, or different pitches. If a contractor, aerial report, or careful plane-by-plane takeoff already provides roof surface area, enter that number directly and do not apply pitch again.
Roofing squares, waste, and bundles answer a material question
One roofing square equals 100 sq ft of roof area. GAF says most standard 3-tab and architectural asphalt shingles use three bundles per square, but specialty products can use more. Always check the selected package coverage.
GAF recommends adding 10%–15% to material quantity for trim and waste. Valleys, dormers, rakes, steep slopes, layout, and installer methods can change the appropriate allowance. Ramefor lets the user select within that published interval and rounds bundles up; it does not apply waste to labor or tear-off area.
- Measured roof area ÷ 100 = roofing squares before waste.
- Measured roof area × selected waste allowance = material coverage area.
- Waste-adjusted squares × three = estimated standard-asphalt bundles, rounded up to a whole bundle.
- Material quantity is not installed project cost; the calculator presents these outputs in separate sections.
Material labels must match the assembly being priced
The calculator supports only 3-tab and architectural asphalt shingles because the registered source provides compatible material-only rows and GAF provides a standard bundle rule for those products. It does not convert asphalt rates into metal, tile, slate, wood, solar, or low-slope membrane prices.
Other systems require different products, fasteners, flashings, underlayments, skills, structural checks, and package units. The installed references below are comparison context only; they are not combined with the calculator's component model.
| Published reference | Value | What it measures |
|---|---|---|
| Asphalt 3-tab roof, installedHomeGuide · Cost to reshingle a roof > roof-type table | $3–$5/sq ft | Installed 3-tab context, separate from the component calculation. |
| Architectural roof, installedHomeGuide · Cost to reshingle a roof > roof-type table | $4–$6/sq ft | Installed architectural-shingle context, separate from the component calculation. |
| Metal shingles, installedHomeGuide · Cost to reshingle a roof > roof-type table | $6–$14/sq ft | Metal shingles only; not every metal-roof profile or metal type. |
| Tile roof, installedHomeGuide · Roof cost estimates by type | $7–$25/sq ft | Broad tile context; structural reinforcement may be separate. |
| Natural slate roof, installedHomeGuide · Cost to reshingle a roof > roof-type table | $10–$30/sq ft | Natural slate context; structure and concealed repairs may be separate. |
Tear-off, disposal, and deck repairs are different scope lines
Removing an old roof exposes the deck and creates labor and disposal work. The calculator can add HomeGuide's old-roof-removal component for asphalt planning, but the contractor should state the number and type of existing layers, haul-off, dumpster, site protection, cleanup, and disposal fees in writing.
Removal does not include replacing damaged sheathing, trusses, or framing in this model. A quote should identify deck-unit prices or allowances and explain how discoveries will be photographed, approved, and billed before repair work proceeds.
Pitch, complexity, access, and stories can change labor without a universal multiplier
Pitch changes surface area geometrically. It can also change safety setup and labor independently: HomeGuide says pitches over 6:12 require extra precautions and more labor, while Angi publishes a broad additional amount for unusually steep roofs without defining a complete calculator formula. Ramefor warns about steep pitch but does not invent a surcharge.
Multiple stories, limited staging, landscaping, power lines, neighboring buildings, hips, valleys, dormers, chimneys, skylights, penetrations, and occupied-site protection can all change production. The sources identify these factors but do not support one auditable national multiplier for every combination.
| Published reference | Value | What it measures |
|---|---|---|
| Unusually steep roof additional costAngi · Additional Cost Factors > Roof Pitch | $1,000–$3,000 | Context only; Angi does not define a full threshold-and-formula model for this amount. |
Normalize what each roof quote includes and excludes
- Measurements: roof planes, eaves and overhangs, pitch by plane, waste percentage, squares, bundle or panel quantity, and measurement-report responsibility.
- Removal: existing material and layer count, underlayment, flashing, nails, haul-off, dumpster, cleanup, magnet sweep, and protection of siding, windows, landscaping, and driveways.
- Roof system: selected product and color, starter, underlayment, ice-and-water protection, valleys, flashing, drip edge, ridge cap, fasteners, ventilation, penetrations, and manufacturer installation requirements.
- Repairs and approvals: deck replacement unit prices, framing allowances, permits, inspections, engineering, code upgrades, change-order process, and photo documentation.
- Commercial terms: labor and material taxes, payment schedule, weather plan, dry-in responsibility, workmanship and manufacturer warranties, registration, exclusions, and cleanup standard.
Two planning scenarios show why the measurement path matters
Modeled scenario—not a quote: a 1,600 sq ft horizontal roof-plan footprint at 6:12 converts to about 1,789 sq ft of roof surface. With 10% waste, material coverage is about 1,968 sq ft, or 19.7 squares; at three bundles per square and whole-bundle rounding, the takeoff is 60 bundles.
Modeled scenario—not a quote: a measured 2,200 sq ft roof surface does not need another pitch factor. At 15% waste it requires planning coverage for 2,530 sq ft, or 25.3 squares; standard three-bundle packaging rounds to 76 bundles. Product packaging and the professional takeoff still control the order.
Why two roof replacement quotes can be far apart
One proposal may use footprint as if it were roof surface while another uses an aerial or plane-by-plane takeoff. They may also carry different waste, shingle grade, underlayment, flashing, ventilation, deck allowances, tear-off layers, disposal, access setup, permits, warranties, overhead, or exclusions.
Compare quantities and scope line by line before comparing totals. Ask each bidder to show measured squares, order quantity, product specifications, removal assumptions, deck-repair prices, system accessories, and everything excluded. A lower total is not comparable if it leaves those decisions unresolved.
Sources, review dates, and limitations
Each source supporting the figures, definitions, or freshness rules on this page is registered below. Published values remain separate when their definitions or research methods differ.
HomeGuide
How Much Does a Roof Replacement Cost? (2026)
- Source published/updated
- Ramefor verified
How we use it: Ramefor uses the component rows for a narrow asphalt-shingle planning model and keeps the source's headline and installed-material ranges as separate comparison context.
Scope and limitations
- HomeGuide says its cost data comes from research and project costs reported by its members; these are national planning references, not bids.
- Its factor table separates old-roof removal, roofing materials, and replacement labor. The calculator uses those rows rather than reverse-engineering a headline average.
- The calculator uses material-only asphalt rows with the factor table's labor and optional removal rows. It does not use the separate installed-per-square-foot rows in the same calculation.
- The page also gives a different labor summary outside the factor table. Ramefor preserves the selected factor-table row and does not blend the two.
- Pitch over 6:12, multiple stories, complex shapes, skylights, chimneys, local conditions, and premium materials can increase actual costs, but the source does not provide a complete auditable multiplier set for those factors.
Angi
How Much Does Roof Replacement Cost? [2026 Data]
- Source published/updated
- Ramefor verified
How we use it: Ramefor uses Angi only as independent headline and scope context. No Angi figure changes the HomeGuide-based calculator result.
Scope and limitations
- Angi identifies roof size, material, height and pitch, and geographic location as major variables.
- Its broad project range, average, and per-square-foot range are separate published statistics and are not averaged with HomeGuide's component rows.
- Angi says permits, old-roof removal, dumpster rental, inspections, and warranty coverage should be considered; inclusion can vary by proposal.
GAF
How Many Bundles of Shingles Are in a Square? (Quick Answer + Calculator)
- Source published/updated
- Ramefor verified
How we use it: Ramefor uses this source for roofing-square, standard-asphalt bundle, and 10%–15% material-allowance rules only; GAF supplies no price input to the calculator.
Scope and limitations
- GAF defines one roofing square as 100 square feet of roof area and says the roof is usually larger than the home's footprint because of pitch, eaves, and other features.
- GAF states that most standard 3-tab and architectural asphalt shingles use three bundles per square, while some specialty products require more; package coverage must be checked.
- GAF recommends adding 10%–15% to material quantity for trim allowance and waste and notes that steep slopes, rakes, valleys, and dormers can require more material.
Related roofing resources
An orientation, not an estimate
These national references do not account for your location, taxes, existing conditions, product selections, contractor availability, or final scope. Get itemized local quotes before making a financial decision.