InstaBidsHow much does it cost to replace a roof in San Jose?
$14,924 was the median declared permit value for data years 2023-2026 in San Jose, CA. One- and two-family detached dwelling roof replacement permits issued in San Jose declared a typical range (middle half of 1,149 City of San Jose permit data points, San Jose, CA, 2023-2026) of $12,054 to $18,942.
Updated 2026-10-28
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| What was measured | Median declared value | Declared value range (middle half) |
|---|---|---|
| One- and two-family detached dwelling roof replacement permits issued in San Jose declared | a median declared value on building permits of $14,924 | the typical range (middle half of 1,149 City of San Jose permit data points, San Jose, CA, 2023-2026) was $12,054 to $18,942 |
Declared permit values are what applicants reported to the city; final contract prices can differ.
How measured: residential single-job permits; declared values below the low-value floor for the same job removed (20 rows). Source: City of San Jose (data.sanjoseca.gov, CKAN), data read 23 October 2026.
These figures are estimates from City of San Jose (data.sanjoseca.gov, CKAN), data years 2023-2026, read 23 October 2026, for San Jose, CA. They are not a quote, and they are not a promise of what any contractor on InstaBids will charge. Your price depends on your home, the materials and the contractor. Get written bids before you decide.
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What the job includes, the line items to ask for and how to compare bids: the national roof replacement cost guide.
What do San Jose roof permits declare?
San Jose’s figures retain 1,149 ReRoof permits for one- and two-family detached dwellings. The office matched 1,170 permits; 1,169 had a declared value, and the low-value filter removed 20 records.
City of San Jose active and expired permit files supply the records, with exact selected-row duplicates removed. ReRoof is a work category, not a detailed roof scope. An expired file marks administrative status rather than proving a renewal or revision.
Read the leading block as applicant-declared permit value, not a roofing invoice. The overlay limits and separate skylight permit below help identify scope that the broad ReRoof category does not describe.
Source: San Jose Building Division, read 7 November 2026.
What does the national survey measure?
The national survey records what households in the United States reported for "Added or replaced roofing". The hired-out row keeps finished jobs handled by someone the household hired.
| What was measured | Median | Typical range (middle half) |
|---|---|---|
| Households in the American Housing Survey that hired out a roof replacement reported | a median of $10,000 | the typical range (middle half of 1,820 American Housing Survey data points, the United States, 2021-2023) was $5,800 to $16,000 |
| When the household did the roofing itself | a median (260 American Housing Survey data points, the United States, 2021-2023) of $5,600 | — |
How measured: hired-out finished jobs, survey-weighted, not adjusted for inflation; do-it-yourself jobs the same way. Source: U.S. Census Bureau, American Housing Survey 2023, data read 16 October 2026.
These figures are estimates from U.S. Census Bureau, American Housing Survey 2023, data years 2021-2023, read 16 October 2026, for the United States. They are not a quote, and they are not a promise of what any contractor on InstaBids will charge. Your price depends on your home, the materials and the contractor. Get written bids before you decide.
Full national guide: How much does it cost to replace a roof?
A survey answer records what a household reported paying, while a declared permit value records what an applicant reported when applying.
San Jose roof permit rules for overlays, inspections and historic properties
Example rule, San Jose Building Division roof permit: permit threshold: “A building permit is required when 25 percent or more of the roof is to be reroofed in any 12-month period.”
Source: San Jose Building Division, read 7 November 2026.
Example rule, San Jose Building Division roof permit: composition overlays: “Maximum number of composition roof covers allowed: 2”
Source: San Jose Building Division, read 7 November 2026.
Example rule, San Jose Building Division roof permit: built up overlays: “A maximum of two built-up roofs is possible.”
Source: San Jose Building Division, read 7 November 2026.
Example rule, San Jose Building Division roof permit: inspection card: “The Permit Card must always be on-site and available to the inspector.”
Source: San Jose Building Division, read 7 November 2026.
Example rule, San Jose Building Division roof permit: skylights: “Skylight installations require a separate building permit and inspection.”
Source: San Jose Building Division, read 7 November 2026.
Example rule, San Jose Building Division roof permit: historic clearance: “If the property is listed on the Historical Resources Inventory, obtain a clearance from the Planning Division.”
Source: San Jose Building Division, read 7 November 2026.
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Sources for the figures on this page
- City of San Jose (data.sanjoseca.gov, CKAN), https://data.sanjoseca.gov/dataset/active-building-permits, read 23 October 2026. InstaBids computed medians and middle-half ranges.
- U.S. Census Bureau, American Housing Survey 2023, https://www.census.gov/programs-surveys/ahs/data/2023/ahs-2023-public-use-file--puf-.html, read 16 October 2026. U.S. government work; no endorsement implied.
- San Jose Building Division, www.sanjoseca.gov/businesses/development-services-permit-center/start-your-project/single-family-duplex-properties/reroof-projects, read 7 November 2026.