Roof replacement cost in St. Louis, MO

Professional replacement for a typical home roof of about 1,300 to 1,800 sq ft of surface.

A typical roof replacement in St. Louis, MO is about $10,424, including a permit fee of $145.

What we assumed

For the permit line we assumed the City of St. Louis Building Division formula, a $25 application fee plus $10 per $1,000 of the full assumed valuation, at the official $12,000 typical valuation, so the typical fee is $145 ($25 + $120). Low $105 and high $245 use the same formula at $8,000 and $22,000. These totals are for the City of St. Louis, not St. Louis County. Historic-district extras are not published in the fee schedule and are not added. Full arithmetic is in the calculation note on this page.

Questions about this estimate

How much does roof replacement cost in St. Louis, MO?

Typical all-in is about $10,424. The official City of St. Louis Building Division permit fee of $145 ($25 application plus $120 building permit) is included in the all-in.

Is a permit required for Roof replacement in St. Louis, MO?

Yes. City of St. Louis Building Division requires a permit for a typical Roof replacement in St. Louis, MO. The typical listed fee is $145. The official path is the City of St. Louis Building Division: a $25 application fee plus $10 per $1,000 of the full assumed valuation. At the official $12,000 valuation that is $145 ($25 + $120). Low $105 and high $245 are the same formula at $8,000 and $22,000. These totals are for the City of St. Louis, not St. Louis County. Historic-district extras are not published in the fee schedule and are not added.

What is included in this Roof replacement estimate for St. Louis, MO?

The estimate is labor adjusted for local wages in St. Louis, MO, plus materials at the national figure, at the typical size in the table above. The official typical permit fee of $145 is included in the all-in typical. That $145 is the $25 application fee plus the $120 building permit fee at the $12,000 typical valuation. Both extras are included. Historic-district extras are not published in the fee schedule and are not added.

Why might the St. Louis permit fee differ from this typical figure?

The official St. Louis, MO fee comes from City of St. Louis Building Division building permit fees ($25 application + $10 per $1,000 over $3,000) (valuation). The typical path is $145 at the official $12,000 valuation: $25 application plus $10 per $1,000 of the full assumed valuation ($25 + $120). Low $105 at $8,000 and high $245 at $22,000 use the same formula. These totals are for the City of St. Louis Building Division, not St. Louis County. Historic-district extras are not published in the fee schedule and are not added. Verify with City of St. Louis Building Division.

How is the typical permit fee calculated for Roof replacement in St. Louis, MO?

Listed totals are $105 at $8,000, $145 at $12,000, and $245 at $22,000. Each total is $25 plus $10 per $1,000 of the full assumed valuation: Low $8,000: $25 + $10×8 = $105, Typical $12,000: $25 + $10×12 = $145, and High $22,000: $25 + $10×22 = $245. The official typical extras are the $25 application fee and the $120 building permit fee, and both are included. Historic-district extras are not published in the fee schedule and are not added. Full arithmetic is in the calculation note on this page.

What project value is this Roof replacement permit fee based on in St. Louis, MO?

Project values used only for the permit formula (not your total cost): low $8,000, typical $12,000, and high $22,000. The official typical project value is $12,000. The permit totals at those values are $105, $145, and $245. The formula is $25 plus $10 per $1,000 of the full assumed valuation.

How much does a roof replacement cost on a 2,000 sq ft home in St. Louis?

Size in this model is roof surface. One roofing square is 100 sq ft of roof surface, and the typical job is 16 squares (1,600 sq ft of roof surface, not floor area). In this model, 2,000 sq ft means roof surface (20 squares). It is separate from the floor area of a home, and the model has no floor-area input. The cost-by-size table has no 2,000 sq ft row; its rows are 10 squares (1,000 sq ft of roof surface), 16 squares (1,600 sq ft of roof surface, not floor area), and 18 squares (1,800 sq ft of roof surface). Read as roof surface, 2,000 sq ft is 20 squares. The calculator already scales job cost by squares divided by 16, and 20 is inside the allowed range of 8 to 60, so these figures are that same scale, not a guess between table rows. At 20 squares in St. Louis, MO the all-in is $7,999 low, $12,994 typical, and $61,770 high. Those all-in figures add the model's rounded permit for the valuation bands on this row. The official fees are $105, $145, and $245. The model rounds each to the nearest dollar before adding it, so the all-in uses $105 on the low, $145 on the typical, and $245 on the high. The permit is based on the assumed valuation, so it is not rescaled when the roof size changes. Job cost is adjusted for local wages using the BLS construction-and-extraction mean of $35.43 per hour for the St. Louis, MO-IL metro (May 2025), labor wage multiplier 1.128, applied to the official 55% labor share. The permit line is not adjusted for local wages.

How much does a roof replacement cost on a 1,200 sq ft home in St. Louis?

Size in this model is roof surface. One roofing square is 100 sq ft of roof surface, and the typical job is 16 squares (1,600 sq ft of roof surface, not floor area). In this model, 1,200 sq ft means roof surface (12 squares). It is separate from the floor area of a home, and the model has no floor-area input. The cost-by-size table has no 1,200 sq ft row; its rows are 10 squares (1,000 sq ft of roof surface), 16 squares (1,600 sq ft of roof surface, not floor area), and 18 squares (1,800 sq ft of roof surface). Read as roof surface, 1,200 sq ft is 12 squares. The calculator already scales job cost by squares divided by 16, and 12 is inside the allowed range of 8 to 60, so these figures are that same scale, not a guess between table rows. At 12 squares in St. Louis, MO the all-in is $4,841 low, $7,855 typical, and $37,160 high. Those all-in figures add the model's rounded permit for the valuation bands on this row. The official fees are $105, $145, and $245. The model rounds each to the nearest dollar before adding it, so the all-in uses $105 on the low, $145 on the typical, and $245 on the high. The permit is based on the assumed valuation, so it is not rescaled when the roof size changes. Job cost is adjusted for local wages using the BLS construction-and-extraction mean of $35.43 per hour for the St. Louis, MO-IL metro (May 2025), labor wage multiplier 1.128, applied to the official 55% labor share. The permit line is not adjusted for local wages.

How much does roof replacement cost per square in St. Louis?

Cost per square on this page is the all-in typical divided by the roof squares on that row. One square is 100 sq ft of roof surface, not floor area. The cost-by-size rows are 10 squares (1,000 sq ft of roof surface), 16 squares (1,600 sq ft of roof surface, not floor area), and 18 squares (1,800 sq ft of roof surface). A typical home roof is about 1,300 to 1,800 sq ft of surface. This model's typical row is 16 squares (1,600 sq ft of roof surface, not floor area), inside that range. The official typical permit fee is $145. The cost-by-size table shows that fee on each of those rows, because this permit is based on the assumed valuation and is not rescaled when the roof size changes. At 16 squares (1,600 sq ft of roof surface, not floor area) in St. Louis, MO the all-in typical is $10,424, which is $651.50 per square after rounding to the nearest dollar. At 10 squares the all-in typical is $6,570, or $657 per square. At 18 squares the all-in typical is $11,709, or $650.50 per square. Those per-square figures are that division of the row. They are not a separate published rate.

Is $30,000 too much for a roof replacement in St. Louis?

At the model's typical 16 squares (1,600 sq ft of roof surface, not floor area) in St. Louis, MO, the all-in is $6,420 low, $10,424 typical, and $49,465 high. $30,000 is above that typical of $10,424. Published asphalt-shingle installed prices run $5,800 to $20,000, so $30,000 is above that band. The national high of $46,000 is the published broad high for steep or premium materials. Wage-indexed for St. Louis, that high is $49,465 at 16 squares. $30,000 is below that adjusted for local wages high and above the typical. On the typical path the same scale first reaches $30,000 at 47 squares ($30,341 typical), which is outside the about 13 to 18 squares this page uses for a typical house. The official permit on this row stays $105 low, $145 typical, and $245 high. $30,000 is above the official high assumed valuation of $22,000, so this row does not list a permit fee for a $30,000 project value. The all-in figures add the model's rounded typical permit of $145. They do not look up a new fee at $30,000.

Do I need a permit to replace my roof in St. Louis?

Yes. City of St. Louis Building Division requires a permit for a typical roof replacement in St. Louis, MO, and the official typical fee is $145. That total is the $25 application fee plus the $120 building permit fee at the official $12,000 valuation. These totals are for the City of St. Louis, an independent city, not St. Louis County. This row does not record a St. Louis County fee. Historic-district extras are not published in the fee schedule and are not added. The cited source is City of St. Louis Building Division building permit fees ($25 application + $10 per $1,000 over $3,000), source retrieved 2026-09-01. Confirm the scope with City of St. Louis Building Division before filing.

What does the typical $145 roof permit fee include in St. Louis?

The official typical fee of $145 includes two extras, and both are included in the total. The Application fee is $25. The Building permit fee is $120 at the $12,000 typical valuation ($10 times 12). $25 + $120 = $145. The formula is $25 plus $10 per $1,000 of the full assumed valuation. Historic-district extras are not published in the fee schedule and are not added, so they are not part of that $145.

Why are the low, typical, and high roof permit fees $105, $145, and $245 in St. Louis?

The low, typical, and high fees are three applications of the same City of St. Louis formula, not three different schedules. Low $8,000: $25 + $10 times 8 = $105. Typical $12,000: $25 + $10 times 12 = $145. High $22,000: $25 + $10 times 22 = $245. The $10 rate is applied to each full assumed valuation. It is not applied only to the dollars above $3,000. The official typical project value is $12,000. Both listed extras, the $25 application fee and the $120 building permit fee, are included in the typical total. Historic-district extras are not published in the fee schedule and are not added.

What does a roof replacement cost in Missouri?

This page prices roof replacement for the City of St. Louis, an independent city in Missouri. It is not a statewide Missouri average, and it is not St. Louis County. At the model's typical 16 squares (1,600 sq ft of roof surface, not floor area) the all-in is $6,420 low, $10,424 typical, and $49,465 high, including the official City of St. Louis Building Division permit fee of $145. Job cost is adjusted for local wages using the BLS construction-and-extraction mean of $35.43 per hour for the St. Louis, MO-IL metro (May 2025), labor wage multiplier 1.128, applied to the official 55% labor share. The permit line is not adjusted for local wages. St. Louis County is a different jurisdiction, and this row does not record a county fee. Historic-district extras are not published in the fee schedule and are not added.