What is the average cost to replace a sidewalk in San Francisco?

If a Public Works Notice to Repair just landed on your door, here is what decides the bill.

There is no fair single number for San Francisco. Sidewalk work here is quoted per square, and the price depends on what the inspector marked and what is underneath it. Replacing a plain square is the modest part. Squares heaved by a street tree, and any curb work, add to it.

Three things worth knowing before you pay anyone:

• Under Public Works Code Section 706, the sidewalk in front of your lot is your responsibility, and the city inspects every block on about a 25-year cycle.

• Since 2017, street trees are the city's responsibility, so root damage may be partly or fully the city's bill.

• Cold patch is only a temporary trip-hazard fix. A notice closes when the marked squares are replaced to city spec, with a Sidewalk Repair Permit and a passed city inspection.

Tip: photograph the notice and each marked square, and flag any square a tree lifted. Ask for a written price that covers exactly that list.

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