Roof Replacement Cost Guide
A roof replacement is one of the largest home expenses, typically running $9,000 to $18,000 for a standard residential job. This guide breaks down every cost component (materials, labor, tear-off, and permits) so you can evaluate contractor quotes with confidence.
Get your estimate before calling a contractor. Enter your roof squares, material type, and region to estimate total replacement cost including labor, tear-off, and permits. Use the Roof Cost Calculator to get a full cost range in 30 seconds.
Estimate my roof cost →What goes into a roof replacement cost
A full roof replacement invoice has four distinct line items: materials, labor, tear-off and disposal, and permits and overhead. Homeowners who estimate only materials or only materials-plus-labor routinely underestimate the real cost by 50 to 70 percent. Understanding what each component costs (and why) is the first step to evaluating whether a contractor’s quote is fair.
Total Replacement Cost
Total = Materials + Labor + Tear-off & Disposal + Permits
Labor is typically 55 to 65 percent of the total invoice on a standard architectural asphalt job. This surprises most homeowners who think of roofing as primarily a materials purchase. The physical labor of tearing off old shingles, staging new material on a slope, and installing it safely is skilled work, and in many US markets, it is priced accordingly. Use the roof area calculator to establish your roofing square count before pricing any component: if you don’t yet know your pitch, the roof pitch guide covers three measurement methods you can use without leaving the ground.
Material costs by type
Material cost per square (100 sq ft) varies enormously by product. Architectural asphalt shingles sit at $130 to $200 per square material cost, making them the affordable workhorse. Standing seam metal runs $450 to $900 per square material cost, three to four times more, but with a 40 to 70 year lifespan that changes the lifetime economics significantly.
| Material | Cost/square (materials) | Expected lifespan |
|---|---|---|
| 3-tab asphalt shingles | $80–$130 | 15–25 years |
| Architectural asphalt | $130–$200 | 25–50 years |
| Metal (exposed fastener) | $250–$500 | 30–50 years |
| Metal (standing seam) | $450–$900 | 40–70 years |
| Clay or concrete tile | $500–$1,100 | 50–100 years |
| Natural slate | $800–$1,600 | 75–150 years |
Material cost is only part of the picture. Standing seam metal also requires specialized labor at $200 to $450 per square, pushing the fully installed cost to $700 to $1,400 per square, roughly 2 to 3 times the asphalt installed cost. For per-square estimates by material and region, the roof cost calculator combines all four cost components in one calculation.
Labor rates by region
Labor rates are the single largest driver of geographic cost variation. The Northeast and Pacific coast command the highest hourly rates nationally ($65 to $90 per hour per worker) while the Southeast and Midwest run $40 to $65 per hour. On a standard 20-square job, regional labor differences can swing the total cost by $4,000 to $6,000 for the same materials.
| Region | Per square (installed) | 20-square house estimate |
|---|---|---|
| Southeast | $350–$500 | $7,000–$10,000 |
| Midwest | $400–$600 | $8,000–$12,000 |
| West | $500–$750 | $10,000–$15,000 |
| Northeast | $600–$900 | $12,000–$18,000 |
| Pacific coast | $650–$1,000 | $13,000–$20,000 |
Tear-off, disposal, and permits
Tear-off and disposal is often underestimated in homeowner budgets. Standard single-layer tear-off runs $50 to $100 per square. Discovering a hidden second layer of old shingles (common on houses from the 1990s) adds $50 to $100 per square in additional removal and disposal cost. For a 20-square roof, two-layer tear-off adds $1,000 to $2,000 to the invoice without any other changes.
Permits are required in most jurisdictions for a full tear-off replacement. They run $100 to $500 and include a post-installation inspection. A contractor who quotes without pulling a permit is either operating illegally or transferring liability to you. Always confirm the permit is included in the bid. For insulation upgrades often done during a re-roof, add the insulation calculator estimate to your total project budget; if you are also replacing rafter or deck sections, the roof rafter guide covers the sizing and cut angles needed for structural repairs.
Decking and flashing: the hidden line items
When a contractor tears off old shingles, they inspect the plywood or OSB deck underneath. Deck rot, water damage, or delamination requires replacement before new shingles go down. Many contractors exclude this from their base bid, citing “deck repair if needed” as a variable — which means you may discover the true cost only after the old shingles are already off and you have no negotiating leverage.
Deck replacement runs $2.50 to $4.50 per square foot for 7/16-inch OSB or 5/8-inch plywood, plus labor. On a 2,000-square-foot roof, replacing 20 percent of the deck (a common scenario in homes older than 25 years) adds $1,000 to $1,800. A full deck replacement on the same roof runs $5,000 to $9,000, which can nearly double the base project cost if not anticipated. Before finalizing your budget, verify whether the bid includes deck repair and at what rate per sheet or per square foot.
Flashing — the metal trim at roof penetrations, valleys, and wall junctions — is another frequently underpriced line item. Replacing all step flashing, valley flashing, and chimney counter-flashing on a standard house runs $200 to $600 in materials and $300 to $800 in labor. Some contractors reuse existing flashing if it is undamaged; others replace it as standard practice. Ask explicitly which approach is quoted, because reused flashing on a new 30-year shingle installation often fails within 10 years.
Ice-and-water shield — a self-adhering rubberized membrane applied under the first few shingle courses at eaves and valleys — is code-required in most northern states and strongly recommended everywhere with freeze-thaw cycles. It costs $100 to $250 per roll and a 20-square house typically needs 6 to 10 rolls, adding $600 to $2,500. Confirm whether the bid specifies felt or synthetic underlayment on the field of the roof as well; synthetic runs $0.10 to $0.20 per square foot more than felt but significantly outperforms it in moisture resistance.
How to compare contractor quotes
Getting three quotes is standard advice. Getting three line-item quotes is what actually protects you. A single page-total hides scope differences that routinely account for $3,000 to $5,000 in cost variation between bids. Before signing anything, ask each contractor to itemize: tear-off (number of layers), deck inspection and repair rate per sheet, underlayment type and specification, ice-and-water shield linear feet, drip edge material and length, flashing approach (reuse or replace), and the manufacturer warranty tier being installed.
The permit should appear as an explicit line item. If it does not, ask. A contractor who works without pulling a permit shifts liability to you — if the roof ever leaks and an insurance claim is filed, an unpermitted installation gives the carrier grounds to deny the claim. In most jurisdictions, the permit also triggers a post-installation inspection by a building official, which independently confirms the work meets code. That inspection record protects you at resale.
Finally, verify that each contractor is licensed in your state, carries general liability insurance of at least $1 million per occurrence, and maintains active workers’ compensation coverage. Request certificates directly — do not accept verbal confirmation. These three documents protect you from personal liability for a worker injury on your property and from contractor default after a deposit is paid. A contractor who hesitates to provide current certificates is a contractor worth removing from consideration.
Frequently asked questions
How much does a roof replacement cost on average?
The national average for a full architectural asphalt shingle replacement on a standard 20-square (2,000 sq ft) residential roof runs $9,000 to $14,000 in the Southeast and Midwest, $12,000 to $18,000 in the Northeast, and $13,000 to $20,000 on the Pacific coast. Premium materials like standing seam metal or natural slate can run $20,000 to $50,000 on the same footprint.
What is the most affordable roofing material?
3-tab asphalt shingles are the most affordable at $80 to $130 per square material cost, with a fully installed cost of $300 to $450 per square. Architectural asphalt shingles cost slightly more at $130 to $200 per square material but last 25 to 50 years versus 15 to 25 for 3-tab, making them better value over time. Most roofing professionals no longer recommend 3-tab due to the improved performance and similar pricing of architectural shingles.
How long does a roof replacement take?
A standard 20-square architectural asphalt replacement can be torn off and fully installed in 1 to 2 days by a 4 to 6 person professional crew under good weather conditions. Tile and slate installations are slower, 3 to 5 days for a similar size due to the weight, individual alignment, and mortar or mechanical fastening requirements. Metal roofing falls between asphalt and tile.
Does homeowner insurance cover a roof replacement?
Homeowner insurance covers sudden accidental damage, hail strikes, wind damage, falling trees. It does not cover replacement due to age, normal wear, or neglect. Most standard policies pay actual cash value (depreciated) unless you have replacement cost coverage. Always get a separate public adjuster or claims specialist evaluation before signing with a contractor after storm damage.
When is the best time to replace a roof?
Late winter and early spring offer the most competitive pricing as contractors seek work before the busy summer and storm season. Asphalt shingles should not be installed in temperatures below 40 degrees Fahrenheit: the self-sealing strips require heat to activate. In the South, roofing proceeds year-round. In northern states, October through March installations require cold-weather adhesive procedures and may carry higher labor rates.
What is the difference between a re-roof and a tear-off?
A re-roof (also called a nail-over) installs a new layer of shingles directly over the existing layer without removing it. Most codes allow one nail-over layer but prohibit a third layer. Re-roofing costs less upfront but hides potential deck rot, adds weight, voids many manufacturer warranties, and typically has a shorter effective lifespan than a full tear-off. A full tear-off exposes the deck for inspection and repair, allowing a clean installation with full manufacturer warranty.
References
National Roofing Contractors Association. (2026). NRCA Roofing Cost Survey and Industry Benchmarks. NRCA. nrca.net
Angi Research Team. (2026). Roof Replacement Cost Data and Contractor Benchmarks. Angi. angi.com
Forbes Home Editorial Team. (2026). Roof Replacement Cost Guide. Forbes Media. forbes.com
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