Roof Replacement
The biggest single search in this category, and the biggest check most homeowners write between remodels.
The project that protects every other project
Roofing dominates our demand data for this category, with roofing contractor searches alone outrunning every siding and gutter term. That tracks with reality: a failing roof does not stay a roofing problem. It becomes an insulation, drywall, flooring and mold problem on a schedule you do not control.
Age and evidence drive the decision. Common asphalt shingle roofs are generally expected to serve roughly 15 to 30 years depending on shingle grade and climate. Curling or missing shingles, granules filling the gutters, daylight in the attic and ceiling stains are the classic signs that repair season is ending.
Replacement is a system, not a shingle swap. A proper job includes tear-off or a code-checked overlay decision, deck inspection and repair, underlayment, ice and water barrier where climate demands it, flashing at every wall and penetration, and ventilation review. Bids that only mention shingles are telling you what they plan to skip.
Replacement decisions worth weighing
Roughly in the order a good contractor will walk you through them.
Repair vs replace
Localized damage on a roof under mid-life usually means repair. Widespread wear on an aging roof means repairs are rent, not a fix.
Tear-off vs overlay
Many codes allow one overlay, and it saves disposal cost. Tear-off exposes the deck, weighs less and is what most pros recommend.
Asphalt shingle grades
Three-tab is cheapest; architectural shingles cost more with longer warranties and better wind ratings. Most replacements choose architectural.
Underlayment and ice barrier
Synthetic underlayment and ice-and-water shield at eaves and valleys are cheap insurance living under the shingles for decades.
Flashing and penetrations
Chimneys, skylights, walls and vents are where roofs actually leak. New flashing, not reused, is a bid quality signal.
Ventilation and gutters
Ridge and soffit venting extends shingle life; replacement day is also the cheapest day to redo tired gutters.
What does it cost?
Commonly published ballparks put full asphalt shingle replacement on a typical single-family home roughly in the $8,000 to $18,000 band, varying with roof size, pitch, stories and region. Metal, tile and slate systems run multiples of asphalt.
The levers are square footage, steepness and access, tear-off layers, deck repair discovered underneath, and material grade. Deck repair is the classic change order, so ask how it is priced per sheet before signing.
Ballparks based on commonly published national averages, stated as assumptions, not measured local pricing. Your competing quotes set the real number for your home and ZIP.
How to hire for roof replacement work
Who does the work
A licensed, insured roofing contractor with a local address and crew, not a storm-chasing pickup. For insurance claims after hail or wind, the roofer and your adjuster will both inspect; hire the roofer, not the person knocking on doors.
What pros will ask
Roof age and layers, leak history, photos of any interior stains, attic access, and your material preference. Expect a measured inspection before a firm number; drive-by quotes firm up only after someone gets on the roof.
What to check before signing
Proof of license and liability plus workers comp insurance, the manufacturer warranty tier being installed, a per-sheet price for deck repair, disposal and magnet sweep included, and payment tied to completion rather than large deposits.
Related searches homeowners make
Pulled from the same demand data behind our Roofing, Siding and Gutters category.
Roof Replacement questions, answered straight
How do I know if I need a new roof?
Age plus evidence. If an asphalt roof is past about 20 years and showing curling, missing shingles, heavy granule loss or interior stains, replacement math usually beats repeated repairs. A reputable roofer will tell you which side of the line you are on and show photos.
How long does a roof replacement take?
Most single-family asphalt replacements finish in one to three days of on-site work, weather permitting. Complex roofs, tile and metal systems, and hidden deck repair extend that. The noisy part is mercifully short.
Is it OK to roof over existing shingles?
Many codes permit one overlay, and it trims cost. The tradeoffs are real: no deck inspection, more weight, shorter life for the new layer, and full tear-off cost next time. Most quality-focused roofers recommend tear-off.
Will insurance pay for my roof?
Homeowners insurance generally covers sudden storm damage like wind and hail, not wear and age. If a storm hit, document damage quickly and involve your insurer before signing anything, and be wary of contractors who want to run your claim for you.
What warranty should I expect?
Two separate ones: a manufacturer warranty on materials, stronger when a certified installer uses the full system, and a workmanship warranty from the contractor covering the install itself. Get both in writing; workmanship terms are where contractors differ most.
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Keep planning your exterior
More guides from the Roofing, Siding and Gutters hub.