Asphalt shingles are the most common roof cover in many areas. They wear out over time from sun and storms. When wear is wide and the roof is old, full replacement is often the right move. This page explains the job in plain steps.
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What the Job Is
Asphalt shingle roof replacement means removing the old roof system. The crew tears off old shingles and underlayment. They check the wood deck below. Then they install new underlayment, flashing, and shingles.
The job also includes vents and edge metal where needed. Ridge cap shingles finish the peaks. The goal is a full new system, not a patch over old wear. We focus on this full replacement scope only. We do not do repairs.
Signs You Need It
Your roof age is a key sign. Many shingle roofs last about two to three decades, but life varies. Heat, shade, and storm history all play a part.
Look for curling or cracked shingles across many areas. Look for bald spots where granules have worn off. Check gutters for large amounts of granules after rain.
Leaks in more than one place can signal system failure. Stains on ceilings in several rooms point the same way. Missing shingles after each storm is another clear sign.
If you see one small issue in one spot, replacement may not be needed yet. If issues are wide, ask a provider to assess for replacement. They can tell you what they see and what options you have.
Process, Step by Step
Step one is the first talk and visit. The provider measures the roof and checks pitch and access. They look in the attic if access allows. They note vents, chimneys, and valleys.
Step two is the written quote. You review scope, shingle type, and timeline. You confirm permit handling and cleanup terms. Do not skip this step.
Step three is scheduling and material delivery. The provider orders shingles and other parts. They set a start date that fits weather forecasts.
Step four is tear-off. The crew protects plants and walls below. They remove old shingles and underlayment. They sort waste for removal from the site.
Step five is deck check and prep. The crew replaces bad boards if you agreed to that work. They install new underlayment and ice and water shield where local rules call for it.
Step six is installation. The crew installs starter strips, field shingles, and ridge cap. They fit flashing around pipes, vents, and chimneys. They seal and align each course with care.
Step seven is cleanup and final check. The crew clears nails and debris from yards and drives. The provider walks the job with you. You review the finish and any papers together.
Most active work takes a few days. Larger or steep roofs take longer. Weather can pause work for safety. Your provider should keep you updated each day.
Materials and Options
Three-tab shingles are flat and uniform. They cost less in many cases, but they are thinner. Architectural shingles are thicker and have a layered look. They often handle wind better when installed well.
Underlayment can be felt or synthetic sheet. Synthetic types resist tears and water well. Ice and water shield adds protection in valleys and at eaves in cold or wet areas.
Flashing is metal that guards joints and edges. It matters around chimneys, walls, and vents. Old flashing may need full replacement with the new roof. Ask if that is in your quote.
Ventilation helps control heat and moisture in the attic. Ridge vents and intake vents work as a pair. Good airflow can help shingles last as intended. Ask the provider to check your current vents.
Colour choice affects heat gain and home style. Dark shades absorb more heat. Light shades reflect more sun. Pick a colour you will like for years, as this is a long term choice.
Cost Factors
We do not publish price ranges here. Each roof is different, and a site visit matters. These factors shape the final quote from a provider.
Roof size is the main factor, measured in squares. Pitch and height add labour and safety needs. Number of layers to tear off adds time and disposal cost.
Material choice matters. Heavier shingles, premium underlayment, and new flashing raise material cost. Deck repairs, if found, add cost too.
Access matters. Tight lots, steep drives, or limited staging space slow the work. Local permit fees and rules also add to total cost. Ask for all factors in a written breakdown.
How to Choose a Provider
Ask for licence proof where it applies. Ask for insurance proof in writing. Ask who will be on site each day.
Ask for a quote that lists each part of the job. Vague quotes lead to disputes later. Clear quotes help you compare fairly.
Ask about cleanup and nail sweeps. Ask about how they protect landscaping. Ask what happens if rain comes mid job.
Read the About page to see how our referral model works. Read provider terms yourself before you sign.
How Our Referral Works
You tell us your city and roof details. We connect you with an independent local provider for this service. The provider contacts you and takes it from there.
Request a free quote using the quote button on this page. Visit Contact to prepare your details.
Service in Our Listed Cities
We list this service for these cities:
City pages cover local weather, rules, and timing notes. You can also compare with Metal roof replacement.
Frequently Asked Questions
How long does an asphalt shingle replacement take?
Timing depends on roof size, pitch, layers to remove, and weather. A small, simple roof may take a few days of active work. A large or steep roof can take longer. The provider should give a clear schedule before work starts and update you if weather or deck issues change that plan.
Can new shingles go over old shingles?
Some roofs allow an extra layer, but a full tear-off is often the cleaner path for replacement. Tear-off lets the crew check the deck and install underlayment correctly. Local rules may limit layers. Ask the provider what rules apply to your home and what they recommend for your roof and why.
What shingle types can I choose from?
Common choices include three-tab shingles and architectural shingles. Architectural types are thicker and often last longer, but cost factors vary. Colour and profile also differ by brand. A provider can show samples for your home and explain maker terms. Pick based on fit, budget, and local weather needs.
How do I know if the deck needs work?
You often cannot know until the old roof comes off. Soft spots, sagging, or water stains can be early signs. During tear-off, the crew checks boards for rot or damage. If work is needed, the provider should show you the issue and agree the next step and cost before they proceed.
What should a written quote include?
A quote should list tear-off, underlayment, shingles, flashing, vents, and cleanup. It should state permit handling, start date, and payment steps. It should note what happens if deck work is needed. Read each line with care. If a cost or task is missing, ask for it in writing before you sign.
Common questions
How long does an asphalt shingle replacement take?
Timing depends on roof size, pitch, layers to remove, and weather. A small, simple roof may take a few days of active work. A large or steep roof can take longer. The provider should give a clear schedule before work starts and update you if weather or deck issues change that plan.
Can new shingles go over old shingles?
Some roofs allow an extra layer, but a full tear-off is often the cleaner path for replacement. Tear-off lets the crew check the deck and install underlayment correctly. Local rules may limit layers. Ask the provider what rules apply to your home and what they recommend for your roof and why.
What shingle types can I choose from?
Common choices include three-tab shingles and architectural shingles. Architectural types are thicker and often last longer, but cost factors vary. Colour and profile also differ by brand. A provider can show samples for your home and explain maker terms. Pick based on fit, budget, and local weather needs.
How do I know if the deck needs work?
You often cannot know until the old roof comes off. Soft spots, sagging, or water stains can be early signs. During tear-off, the crew checks boards for rot or damage. If work is needed, the provider should show you the issue and agree the next step and cost before they proceed.
What should a written quote include?
A quote should list tear-off, underlayment, shingles, flashing, vents, and cleanup. It should state permit handling, start date, and payment steps. It should note what happens if deck work is needed. Read each line with care. If a cost or task is missing, ask for it in writing before you sign.