Roof Replacement Costs: Materials, Labor and Timing

Asphalt shingle, which covers the large majority of US homes, commonly runs somewhere between $400 and $700 per square installed. So a 2,000 square foot roof at moderate pitch often lands between $9,000 and $16,000, with regional labour costs swinging that considerably.

What each material actually costs

Three-tab asphalt is the cheapest and increasingly rare, with a 20 to 25 year life. Architectural or dimensional shingle costs modestly more, looks substantially better and typically carries a 30 to 50 year warranty — it is the default choice for good reason.

Standing seam metal runs roughly two to three times asphalt but lasts 40 to 70 years, sheds snow well and can reduce cooling costs. Over a long enough ownership horizon the annualised cost is competitive. Clay and concrete tile last longest but weigh enough that many framing systems need reinforcement first, which is a structural expense on top of the roofing.

Cedar shake is attractive, expensive and requires maintenance, and is restricted or banned in some wildfire-prone jurisdictions. Slate is exceptional and priced accordingly.

Tear-off, decking and the surprises underneath

Removing the old roof costs money and generates disposal fees. Some contractors quote an overlay — installing new shingles over old — which is cheaper and generally a false economy, since it hides the decking, adds weight and shortens the new roof's life. Most manufacturers restrict warranties on overlays.

Once the old material is off, damaged decking becomes visible. This is the most common source of change orders. Ask specifically how replacement decking is priced per sheet and get it in writing before work starts, because 'we found some rot' is an open-ended conversation otherwise.

Also budget for ice and water shield in cold climates, drip edge, new flashing around chimneys and valleys, and ventilation. Reusing old flashing is a frequent corner-cut that causes leaks in year three.

Timing changes the price

Roofing demand is seasonal and peaks in late summer and autumn. Booking in late winter or early spring, when crews have capacity, often yields better pricing and more attentive work.

Avoid booking immediately after a major hail or wind event in your area. Prices rise, quality crews are fully committed, and out-of-state operators appear who will be unreachable when a warranty claim arises.

Vetting the contractor

Confirm state licensing where required, and confirm both general liability insurance and workers' compensation, by asking for certificates directly from the insurer rather than from the contractor. If an uninsured worker is injured on your property, the exposure can reach you.

Ask whether the crew is employed or subcontracted, and who supervises. Ask for the manufacturer certification, since some warranties are only available through certified installers. Get three written quotes with matching scope, and be sceptical of the cheapest if it omits tear-off, flashing or ventilation.

Warranties are two separate things

The manufacturer warranty covers material defects, and is often prorated after an initial period. The workmanship warranty covers installation, comes from the contractor, and typically runs two to ten years.

The workmanship warranty is the more valuable of the two, because most roof failures are installation failures rather than material failures. It is also only as good as the company's survival, which is another argument for established local firms over storm-chasers.

Insurance and payment

If damage is storm-related, involve your insurer before signing anything. Note the shift in many states toward depreciated roof settlements based on age, which can leave a substantial gap between the payout and the replacement cost.