Homeowner FAQ

Roofing questions, answered plainly.

What to do when a leak starts, what an inspection can tell you, and what should be written down before roofing work begins.

Leaks and inspections

What should I do first if water is coming through the ceiling?

Move people and belongings away from the wet area and use a container to catch water if it is safe to do so. Do not climb onto a wet roof. If water is near a light fixture, outlet, or wiring, keep clear of the area and contact a qualified electrician or emergency service.

Note where the water appeared and when it started, then arrange a roof inspection.

What happens during a roof inspection?

The inspection covers visible roof surfaces and safely accessible problem areas, including roof penetrations, flashing, valleys, drainage points, and interior signs of water.

Not every leak source is visible immediately, so the findings should separate observed conditions from likely causes.

What information should I provide before the visit?

Provide the property address, the part of the building where you noticed the problem, when it began, and whether it changes during wind or heavy rain. Interior or ground-level photos can help.

Never climb onto the roof just to take a picture.

How does the inspection appointment work?

Choose a date and a one-hour arrival window in the booking form. The requested time is not final until Amex Roofing confirms it by phone or email. If the time is unavailable, we will arrange another window with you.

Repair or replacement

Does one leak mean I need a complete roof replacement?

No. A leak may come from a small flashing failure, a damaged shingle area, a roof penetration, or a drainage problem.

Replacement becomes more likely when damage is widespread, the roof system is near the end of its useful life, or the same areas have failed repeatedly.

How is a repair different from a replacement?

A repair addresses a defined problem area while leaving serviceable roofing in place. A replacement removes the existing roof covering as described in the written scope, repairs damaged decking where included, and installs the new roof system.

The recommendation should be tied to visible conditions rather than age alone.

Why do flat and low-slope roofs use different materials?

Water drains more slowly on a low-slope surface, so overlapping shingles are generally not the right system there. These roofs commonly use a continuous membrane or a torch-down assembly.

Transitions between pitched and low-slope sections need careful flashing and drainage details.

Can an older roof still be repaired?

Sometimes. Age is only one factor. The condition of the surrounding roofing, the size and location of the damage, earlier repairs, and the condition of the roof deck all matter.

A written scope should explain why a limited repair is reasonable or why replacement is being proposed.

Price and estimates

How is a roofing price calculated?

Roofing is usually priced from the actual roof area, not the home’s interior floor area. Contractors often measure in “roofing squares”; one square equals 100 square feet.

The price also reflects the roofing material and complete system—such as underlayment, flashing, vents, and fasteners—plus removal and installation labor, roof pitch and height, shape and access, existing layers, hauling and disposal, permit and inspection fees, and any deck or structural repairs.

Labor is often a large part of the total, but it is not a fixed percentage. A steep, cut-up, or hard-to-access roof takes more time than a simple roof of the same area.

What does roofing generally cost in the Bay Area?

Published 2026 cost guides vary widely. For general planning, an asphalt-shingle replacement in the Bay Area is often discussed at roughly $8–$15 per square foot of actual roof area. That is about $16,000–$30,000 for a 2,000-square-foot roof.

Smaller or simpler roofs may cost less. Larger, steeper, or more complex roofs, premium materials, multiple tear-off layers, difficult access, solar work, or extensive deck repairs can cost more. Localized repairs may range from several hundred to several thousand dollars because the cause and repair area vary considerably.

These figures are general Bay Area market context, not Amex Roofing prices or a quote. We provide a written price after inspecting the roof and defining the materials and scope. When comparing proposals, check that each one addresses the same roof area, tear-off, materials, flashing, deck-repair allowance, permits, disposal, cleanup, and warranties.

The work and paperwork

How long will the roofing work take?

Timing depends on roof size, access, material, deck repairs, permits, and weather. A localized repair may take part of a day, while a replacement usually takes longer.

The expected schedule should be stated after the roof has been inspected and the scope is known.

Will my roofing project need a permit?

Permit requirements depend on the city and the type of work. Before work begins, the written proposal should state whether a permit is expected, who will obtain it, and whether an inspection by the local building department is part of the job.

Do I need to leave the house while the roof is being worked on?

Many homeowners remain in the house, but roofing is loud and creates vibration. Secure fragile items, keep children and pets away from work and material-delivery areas, and discuss access or work-from-home concerns before the start date.

What should the written roofing scope include?

It should identify the roof areas being worked on, removal and disposal, materials, flashing and penetration details, deck repairs or allowances, permit responsibility, cleanup, payment terms, and any workmanship or manufacturer warranty that applies.

Ask for unclear items to be explained before approving the work.

Still unsure what your roof needs?

Call, email, or request an inspection time online.

Call Book amexroofingca@gmail.com