How much does it cost to replace windows in Los Angeles?

$2,000 was the median declared permit value for data years 2023-2026 in Los Angeles, CA. Single-family and duplex window replacement permits issued in Los Angeles declared a typical range (middle half of 1,013 City of Los Angeles permit data points, Los Angeles, CA, 2023-2026) of $1,250 to $3,250.

Updated 2026-10-28

InstaBids is an AI-run marketplace for homeowners and property managers: describe a home job once, by chat or through your own AI assistant, add photos, and get multiple written quotes on the same scope, compared apples to apples, with no phone calls or home visits before you pick.

For homeowners, property managers, landlords and HOA boards.

Los Angeles, CA: declared value on building permits
What was measured	Median declared value	Declared value range (middle half)
Single-family and duplex window replacement permits issued in Los Angeles declared	a median declared value on building permits of $2,000	the typical range (middle half of 1,013 City of Los Angeles permit data points, Los Angeles, CA, 2023-2026) was $1,250 to $3,250

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 (286 rows). Source: City of Los Angeles, LADBS 'Building Permits Issued from 2020 to Present' (pi9x-tg5x), data read 22 October 2026.

These figures are estimates from City of Los Angeles, LADBS 'Building Permits Issued from 2020 to Present' (pi9x-tg5x), data years 2023-2026, read 22 October 2026, for Los Angeles, 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.

How we know: By InstaBids editorial team with AI research agents. Sources read: 16 October 2026

Describe it onceBy chat, or through your own AI assistant, and add photos.
Post it and send itContractors bid in writing on that scope.
Compare line by lineEvery quote is written against the same scope.
You chooseContact details stay hidden until you pick and they confirm.

For your AI assistant

MCP connector · REST API · plain HTML

Hand any of these to your assistant and it can help you write this job's request; you send the request yourself. What you type in the job box above goes into the prompt these buttons carry. The connector asks you to sign in to your InstaBids account the first time.

MCP connector URLhttps://instabids.ai/api/agent/mcp
Agent API (OpenAPI)https://instabids.ai/openapi.json
Start-request linkhttps://instabids.ai/intake?page_type=cost&job=window+replacement&place=los+angeles&from=cost-window-replacement--los-angeles&utm_source=us&utm_medium=page&utm_campaign=cost
Prompt for any AI, with your job

Open it in your assistant

Add InstaBids as a connector

Every page is plain HTML. Steps for every assistant: add to your assistant.

What the job includes, the line items to ask for and how to compare bids: the national window replacement cost guide.

What do Los Angeles window permits declare?

Each Los Angeles figure above is a declared permit value: what the applicant told the permit office the window job was worth when applying. It is not an invoice.

The count covers building permits for single-family homes and duplexes whose description names a window replacement. Before counting, 45 legalisation, as-built, revision, supplemental or renewal permits and 33 permits that also named another job were left out.

All 1299 matched permits carried a declared value. Of those, 286 fell below the low-value floor for this job and were removed, which leaves the 1013 permits behind the figures.

How does Los Angeles compare with the national survey?

For the national picture, the Census Bureau's American Housing Survey asked households about the work done on their home and whether they hired it out. Its item reads "Added or replaced doors or windows", so a new entry door and a full set of new windows share one range.

Source: U.S. Census Bureau, AHS 2023 Value Labels Package, read 16 October 2026.

United States: homeowner survey
What was measured	Median	Typical range (middle half)
Households in the American Housing Survey that hired someone to add or replace doors or windows reported	a median of $4,000	the typical range (middle half of 1,477 American Housing Survey data points, the United States, 2021-2023) was $1,300 to $10,000
When the household fitted them itself	a median (572 American Housing Survey data points, the United States, 2021-2023) of $750	—

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 windows?

The Los Angeles median declared value sits below the national survey median for hired-out door and window jobs.

The two are different kinds of record: a survey answer is what a household remembers paying, while a permit value is what an applicant wrote down before the work began. This page keeps them apart and never blends them into one number.

Which window rules does Los Angeles publish?

Example rule, Los Angeles City Planning historic-district window guidance: “Use ZIMAS to confirm that the property is located within an HPOZ and to check its designation (Contributing Structure, Contributing Altered, or Non-Contributing Structure).”

Source: Los Angeles City Planning, read 9 November 2026.

Example rule, Los Angeles City Planning historic-district window guidance: “The application will be subject to one of four procedures depending on the project description: Certificate of Appropriateness (COA), Certificate of Compatibility (CCMP), Conforming Work on a Contributing Structure (CWC), or Conforming Work on a Non-Contributing Structure (CWNC) , which may require HPOZ board review and/or filing fees.”

Source: Los Angeles City Planning, read 9 November 2026.

Example rule, Los Angeles City Planning historic-district window guidance: “All projects in an HPOZ require planning approvals and/or HPOZ board review prior to the start of construction.”

Source: Los Angeles City Planning, read 9 November 2026.

Example rule, Los Angeles City Planning historic-district window guidance: “If the project requires a Certificate of Appropriateness (COA) or Certificate of Compatibility (CCMP) there is a 15 day appeal period.”

Source: Los Angeles City Planning, read 9 November 2026.

Example rule, Los Angeles City Planning historic-district window guidance: “When a project is approved and no appeal is filed, the assigned planning staff can then sign off on any associated permits.”

Source: Los Angeles City Planning, read 9 November 2026.

Example rule, Los Angeles City Planning historic-district window guidance: “Proposed projects on parcels located within the boundaries of a Historic Preservation Overlay Zone (HPOZ) are required to obtain an administrative clearance or an entitlement.”

Source: Los Angeles City Planning, read 9 November 2026.

Example rule, Los Angeles City Planning historic-district window guidance: “Projects that qualify for administrative clearance include work that generally consists of maintenance, rehabilitation, repair, restoration, and other similar activity (projects can include, but are not limited to: landscape/hardscape, window maintenance/replacement, stucco maintenance, re-roof, etc.).”

Source: Los Angeles City Planning, read 9 November 2026.

Example rule, Los Angeles City Planning historic-district window guidance: “Formal Review: City Planning staff review the plans for compliance with HPOZ regulations, applicable Preservation Plan guidelines, and notify the applicant about any required corrections.”

Source: Los Angeles City Planning, read 9 November 2026.

Get written bids

Contractors who take part bid on one written scope card, so nobody visits before you see any prices.

Sources for the figures on this page

City of Los Angeles, LADBS 'Building Permits Issued from 2020 to Present' (pi9x-tg5x), https://data.lacity.org/City-Infrastructure-Service-Requests/Building-and-Safety-Building-Permits-Issued-from-20/pi9x-tg5x, read 22 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.
U.S. Census Bureau, AHS 2023 Value Labels Package, www2.census.gov/programs-surveys/ahs/2023/AHS 2023 Value Labels Package.zip, read 16 October 2026.
Los Angeles City Planning, planning.lacity.gov/preservation-design/historic-district-project-review, read 9 November 2026.
Los Angeles City Planning, planning.lacity.gov/oas/instructions/hpozinstructions.htm, read 9 November 2026.