Pennsylvania window replacement leads
Summit Leads supplies window replacement leads in Pennsylvania by real-time ping/post, exclusive by default, with ZIP code filters. Pennsylvania moved its homes to the 2021 IECC on January 1, 2026, per the DOE code status page (checked October 7, 2026), and about two thirds of its housing predates 1980.
- Founded in 2025
- 40+ national buyer and supply partners
- All U.S. states
- Exclusive by default
Pennsylvania facts for window replacement lead buyers
| Fact | Value Source |
|---|---|
| Residential energy code | 2021 IECC with state amendments, adopted October 16, 2025, effective January 1, 2026 (DOE, checked October 7, 2026)Building Energy Codes Program: Pennsylvania U.S. Department of Energy |
| Window framing in the UCC scope rule | A minor framing change to replace existing windows or doors is not a structural change (34 Pa. Code 403.1(b)(8), checked October 7, 2026)34 Pa. Code 403.1, Scope (Uniform Construction Code) Pennsylvania Code and Bulletin, Legislative Reference Bureau |
| IECC 2021 climate zones by county | Zone 5A in 53 counties and zone 4A in 14 (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 |
| ENERGY STAR window climate zones | Spans more than one zone (map, August 2025)ENERGY STAR Windows, Doors and Skylights Climate Zone Map (August 2025) U.S. EPA ENERGY STAR |
| Median year structure built | 1965 (ACS 5-year 2020-2024)Table B25035, Median Year Structure Built: Pennsylvania (ACS 5-Year 2020-2024) U.S. Census Bureau |
| Housing units built before 1980 | 67.2% (ACS 5-year 2020-2024, table B25034)Table B25034, Year Structure Built: Pennsylvania (ACS 5-Year 2020-2024) U.S. Census Bureau |
| Median home value | $254,500 (ACS 5-year 2020-2024, table B25077)Table B25077, Median Value (Dollars): Pennsylvania (ACS 5-Year 2020-2024) U.S. Census Bureau |
Last reviewed: October 7, 2026. A summary for education, not legal advice.
A new residential energy code for 2026
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.
Pennsylvania changed codes this year. The DOE Building Energy Codes Program page for Pennsylvania (checked October 7, 2026) lists the 2021 IECC as the residential code, with state amendments, adopted October 16, 2025 and effective January 1, 2026. Commercial work moved on the same dates to the 2021 IECC and ASHRAE 90.1-2019. DOE lists the Department of Labor and Industry, which administers the Uniform Construction Code, as the adoption contact.
Pennsylvania building code scope and contractor registration
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.
Pennsylvania's Uniform Construction Code regulations address window replacement by name. 34 Pa. Code 403.1 (checked October 7, 2026) excludes from the code alterations to residential buildings that do not make structural changes or changes to means of egress, except as required by local ordinances under sections 303(b)(1) or 503 of the act. The same paragraph says that a structural change does not include a minor framing change needed to replace existing windows or doors.
Because local ordinances can add requirements, buyers whose installers work in several municipalities can ask each crew which permits its townships and boroughs require. Registration under the Home Improvement Consumer Protection Act and the three-day rescission rule are covered on leads in Pennsylvania.
Pennsylvania housing age and value
Two thirds of Pennsylvania homes predate 1980. Table B25034 (ACS 5-year 2020-2024) puts 67.2% of housing units before 1980 and counts 1,450,253 units built in 1939 or earlier, the largest single band in the table. The median year built is 1965 in table B25035 (ACS 5-year 2020-2024).
Postwar building added two more large bands. The same table B25034 (ACS 5-year 2020-2024) counts 754,049 units built from 1950 to 1959 and 717,278 from 1970 to 1979, while only 57,704 units date from 2020 or later. A buyer selling replacement work across the state will see requests from houses of very different ages, and the build year field helps sort them.
Table B25077 (ACS 5-year 2020-2024) gives a median value of $254,500 for owner-occupied Pennsylvania homes.
Climate zones in Pennsylvania
Pennsylvania has two IECC zones, both moist. PNNL-33270 (2021 county data), the county guide prepared for DOE, places 53 counties in zone 5A and 14 in zone 4A; DOE uses the letter A for moist climates.
On the ENERGY STAR climate zone map (August 2025), the state is split across more than one window zone. ENERGY STAR's zone finder gives the zone for any Pennsylvania ZIP code.
What Pennsylvania window buyers filter on
- Home age: the prewar band is large, and older openings may need the minor framing the code rule describes.
- Number of windows and scope: same-size replacement versus enlarged openings or egress changes.
- ZIP code: sets the municipality, and with it any local permit rules and the ENERGY STAR zone.
- Homeowner status: the owner signs the home improvement contract.
Where buyers filter in Pennsylvania
Pennsylvania's largest metro areas sit at both ends of the state. The six largest metro areas with Pennsylvania counties are listed from the Census Bureau's July 1, 2025 estimates. Philadelphia and Allentown extend into neighboring states, so their figures cover the whole metro area; a ZIP code list keeps a campaign inside Pennsylvania.
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD: 6,329,118 (July 1, 2025 estimate, whole metro area)
- Pittsburgh: 2,421,992 (July 1, 2025 estimate)
- Allentown-Bethlehem-Easton, PA-NJ: 887,615 (July 1, 2025 estimate, whole metro area)
- Harrisburg-Carlisle: 617,427 (July 1, 2025 estimate)
- Scranton--Wilkes-Barre: 574,418 (July 1, 2025 estimate)
- Lancaster: 563,159 (July 1, 2025 estimate)
Source: Metropolitan and Micropolitan Statistical Area population estimates, Vintage 2025 (cbsa-est2025-alldata), U.S. Census Bureau.
Consent records for Pennsylvania window replacement leads
Pennsylvania window leads come with 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 taken when the homeowner made the request. The state's calling rules sit in its row of the state telemarketing laws table, and the Pennsylvania overview for MVA and home improvement buyers is leads in Pennsylvania.
Pennsylvania window replacement lead questions
When did Pennsylvania start using the 2021 IECC for homes?
January 1, 2026, with state amendments, according to the DOE Pennsylvania page (checked October 7, 2026). This is general information, not legal advice.
What does the Pennsylvania UCC say about framing for replacement windows?
34 Pa. Code 403.1(b)(8) says a structural change does not include a minor framing change needed to replace existing windows or doors. Local ordinances can still apply. This is general information, not legal advice.
How many Pennsylvania homes were built in 1939 or earlier?
1,450,253 housing units, in table B25034 of the ACS 5-year estimates for 2020-2024.
Which IECC climate zones cover Pennsylvania?
Zone 5A in 53 counties and zone 4A in 14, in PNNL-33270 for DOE (2021 county data).
Request Pennsylvania window replacement leads
Email us the Pennsylvania 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.
Start small, with no long-term commitment
- No long-term contract. Pause or stop at any time.
- No setup fee and no monthly fee. You pay only for leads delivered that match your filters.
- Start with a small test volume and scale when the numbers work.
- MVA and home improvement leads are exclusive by default: each lead is sold to one buyer.
- Return terms are agreed on the onboarding call, before you go live.
Or write to team@summitleads.ai. We reply by email.
Generating leads instead? Sell your leads