Indiana window replacement leads
Summit Leads supplies window replacement leads in Indiana by real-time ping/post, exclusive by default, with filters down to the ZIP code. Indiana housing is old: table B25034 (ACS 5-year 2020-2024) shows 55.0% of units built before 1980, and the state splits almost evenly between two IECC climate zones.
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Indiana facts for window replacement lead buyers
| Fact | Value Source |
|---|---|
| ENERGY STAR window climate zone | Spans more than one zone (map, August 2025)ENERGY STAR Windows, Doors and Skylights Climate Zone Map (August 2025) U.S. EPA ENERGY STAR |
| IECC 2021 climate zones | Zone 5A in 47 counties and zone 4A in 45 (PNNL for DOE, 2021 county data)Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) Pacific Northwest National Laboratory for the U.S. Department of Energy |
| Residential energy code | 2018 IECC with amendments, effective December 26, 2019 (DOE, checked October 7, 2026)Building Energy Codes Program: Indiana U.S. Department of Energy |
| Median year structure built | 1976 (ACS 5-year 2020-2024)Table B25035, Median Year Structure Built: Indiana (ACS 5-Year 2020-2024) U.S. Census Bureau |
| Housing units built before 1980 | 55.0% (ACS 5-year 2020-2024, table B25034)Table B25034, Year Structure Built: Indiana (ACS 5-Year 2020-2024) U.S. Census Bureau |
| Median home value | $218,200 (ACS 5-year 2020-2024, table B25077)Table B25077, Median Value (Dollars): Indiana (ACS 5-Year 2020-2024) U.S. Census Bureau |
| Licenses and permits in the contract | Contract must be conditioned on obtaining any needed license or permit before work starts (IC 24-5-11-9, 2026 Indiana Code)Indiana Code 24-5-11-9, License or permit as prerequisite (2026 Indiana Code) Indiana General Assembly |
| Home improvement contract contents | Detailed description, approximate start and completion dates and the contract price, given before signing (IC 24-5-11-10, 2026 Indiana Code)Indiana Code 24-5-11-10, Contract requirements (2026 Indiana Code) Indiana General Assembly |
Last reviewed: October 7, 2026. A summary for education, not legal advice.
Indiana homes: older stock at a moderate price
More than half of Indiana housing predates 1980. The Census Bureau's table B25034 (ACS 5-year 2020-2024) puts that share at 55.0%, and it counts 474,947 units built in 1939 or earlier, the largest single band in the table. The median year built is 1976 in table B25035 for the same years.
Home values are moderate by comparison: table B25077 (ACS 5-year 2020-2024) gives $218,200 as the median value of an owner-occupied Indiana home. Buyers who price a job against the value of the house, or who sell financing, can use that figure when they set ZIP code and project filters.
Where Indiana changes code zones
Indiana divides close to the middle. In DOE's county guide, PNNL-33270 (2021 county data), 47 counties are in IECC zone 5A and 45 are in zone 4A. The 5A counties run across the north and include Lake, St. Joseph, Allen and Tippecanoe. Marion County, home to Indianapolis, and Vanderburgh County, home to Evansville, are in 4A. DOE uses the letter A for moist climates.
ENERGY STAR draws its own lines. The ENERGY STAR climate zone map (August 2025) places Indiana in more than one window zone, and buyers confirm the zone for a particular county or ZIP code with the ENERGY STAR zone finder.
The energy code DOE lists for Indiana homes
This section is general information, not legal advice. It summarizes official sources as of October 7, 2026; check the current text of each rule before relying on it.
The Department of Energy's Building Energy Codes Program page for Indiana (checked October 7, 2026) gives "2018 IECC with amendments" as the current residential code, effective December 26, 2019. The page shows no adoption date for the residential code, and its state amendments row reads "No". DOE lists the Division of Fire and Building Safety in the Indiana Department of Homeland Security as the state contact. That 2018 edition is older than the 2021 IECC on which the county zone guide above is based.
Indiana contract rules for window jobs
This section is general information, not legal advice. It summarizes official sources as of October 7, 2026; check the current text of each rule before relying on it.
Indiana's Home Improvement Contracts chapter sets out what the paperwork must say. Indiana Code 24-5-11-10 (2026 Indiana Code) requires the supplierSupplierAny company that provides leads to a buyer, whether it generates them itself or brokers them from publishers. Glossary to give the consumer a completed contract before it is signed, with a reasonably detailed description of the work, the approximate starting and completion dates, any contingencies that would change the completion date, and the contract price.
Permits are written into the deal as well. Under Indiana Code 24-5-11-9 (2026 Indiana Code), if a license or permit is needed for any part of the improvement, the contract must be conditioned on the right party obtaining it before work begins.
Who licenses contractors, and the cancellation right for in-home sales, are covered on leads in Indiana.
How Indiana window buyers narrow their orders
- Home age: pre-war houses call for different crews and quotes than homes built after 1980.
- ZIP code: the north and south of the state sit in different code zones, and buyers pick the ZIP codes their crews reach.
- Homeowner status: the owner is the party who signs the written contract the statute describes.
- Number of windows and scope: the window count and project scope feed the description and price the contract must state.
Where buyers filter in Indiana
Indiana window campaigns are usually set up around a handful of metros, three of which extend into Illinois, Kentucky or Michigan. The list gives the six largest metro areas with Indiana counties, from the Census Bureau's July 1, 2025 estimates; buyers can add or remove single ZIP codes inside or outside them.
- Indianapolis-Carmel-Greenwood: 2,205,695 (July 1, 2025 estimate)
- Chicago-Naperville-Elgin, IL-IN: 9,434,123 (July 1, 2025 estimate, whole metro area)
- Fort Wayne: 466,258 (July 1, 2025 estimate)
- Louisville/Jefferson County, KY-IN: 1,402,509 (July 1, 2025 estimate, whole metro area)
- Evansville: 273,786 (July 1, 2025 estimate)
- South Bend-Mishawaka, IN-MI: 324,538 (July 1, 2025 estimate, whole metro area)
Source: Metropolitan and Micropolitan Statistical Area population estimates, Vintage 2025 (cbsa-est2025-alldata), U.S. Census Bureau.
Consent records for Indiana window replacement leads
Every Indiana window lead includes the TCPATCPAThe Telephone Consumer Protection Act, the federal law that governs telemarketing calls and texts, autodialers, prerecorded voice messages and the Do Not Call Registry. Glossary consent record from the form the homeowner filled in. For Indiana's state list and texting rules, see the state telemarketing laws table; for the combined MVA and home improvement view, see leads in Indiana.
Indiana window replacement lead questions
Which IECC edition does DOE list for Indiana homes?
The 2018 IECC with amendments, effective December 26, 2019, on the DOE Indiana code status page (checked October 7, 2026). This is general information, not legal advice.
Are Indianapolis and South Bend in the same IECC climate zone?
No. Marion County is in zone 4A and St. Joseph County is in zone 5A in PNNL-33270 for DOE (2021 county data).
What must an Indiana window contract state before the homeowner signs?
Among other items, a detailed description of the work, approximate start and completion dates and the price, under Indiana Code 24-5-11-10 (2026 Indiana Code). This is general information, not legal advice.
How many Indiana homes were built in 1939 or earlier?
The Census Bureau counts 474,947 such units in table B25034 (ACS 5-year 2020-2024).
Request Indiana window replacement leads
Email us the Indiana ZIP codes you cover, your daily volume or caps and how you take delivery. ReturnReturnA buyer's request for credit on a lead that fails agreed standards, such as a disconnected number, a duplicate or a lead outside the filters. Glossary terms are agreed on the onboarding call, before you go live.
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