
127 eligible ZIP codes in Pennsylvania
Deck builders in Pennsylvania
Deck building, replacement and repair in Philadelphia's Western and Northern Suburbs — including West Chester, Doylestown, Norristown and Pottstown. Coverage is limited to the ZIP codes listed below.
Regional guidance
Planning a deck in Pennsylvania
Covered Pennsylvania ZIPs are in suburban Philadelphia communities across Montgomery, Chester, Bucks and Delaware counties, with four distinct seasons, humid summers and cold winters with freeze-thaw.
Freeze-thaw
Repeated freeze-thaw makes footing depth and moisture management important.
Mature trees
Wooded lots drop leaves and shade decks, increasing the need for cleaning and mildew resistance.
Older homes
Historic and older homes can complicate ledger attachment; freestanding designs are sometimes simpler.
Seasonal planning
Spring through fall is prime construction season; township permit timelines vary.
Materials for this climate
Capped composite suits shaded, leafy lots; cedar and treated pine fit traditional homes when maintained. Compare options in our materials guide.
Permits and building codes
Pennsylvania's Uniform Construction Code applies statewide and is enforced by municipalities or third-party agencies they designate. Contact your township or borough. We don't publish local permit rules on this site because they vary and change — your building department is the authority.
Authoritative references
- Prescriptive Residential Wood Deck Construction Guide (DCA 6) — American Wood Council
- U.S. Climate Normals — NOAA National Centers for Environmental Information
How old is the housing in our Pennsylvania service area?
Across our covered Pennsylvania ZIP codes — about 772,452 homes — the median home was built around 1975, compared with 1965 for Pennsylvania as a whole.
32% of homes in the covered area predate 1960, 24% were built in the 1960s and 1970s, 25% in the 1980s and 1990s, and 18% since 2000. The oldest housing is in Pomeroy (1920), Parker Ford (1928) and Buckingham (1938); the newest is in Sadsburyville (2005), Furlong (2002) and Colmar (2002). That spread is why deck projects here range from rebuilding retrofit decks on early-20th-century homes to upgrading decks on houses built in the last decade.
| Decade built | Homes | Share |
|---|---|---|
| 2020 or later | 12,327 | 2% |
| 2010s | 50,029 | 6% |
| 2000s | 79,187 | 10% |
| 1990s | 93,784 | 12% |
| 1980s | 101,857 | 13% |
| 1970s | 99,541 | 13% |
| 1960s | 86,663 | 11% |
| 1950s | 107,461 | 14% |
| 1940s | 35,609 | 5% |
| before 1940 | 105,994 | 14% |
What deck projects are most common in our Pennsylvania service area?
Based on the age of our Pennsylvania service area's housing, the largest group of projects is likely to be retrofitting or rebuilding decks added to older homes.
- Retrofit decks on older homes: about 335,727 homes (43%) predate 1970. Here the priority is confirming that add-on decks are properly attached — or rebuilding them freestanding — before any cosmetic work.
- Replacement and major repair: about 295,182 homes (38%) were built between 1970 and 1999, the age group whose original or early add-on decks are most likely to have worn-out framing, connectors and boards.
- Upgrades and expansions: about 62,356 homes (8%) were built since 2010. Their decks are usually sound but small or builder-grade, so enlarging the deck, adding stairs and switching to composite or upgraded railings are common.
How much does climate vary across our Pennsylvania service area?
Freezing days range from about 62 a year near Ardmore to about 139 near Upper Black Eddy, based on the nearest NOAA stations' 1991–2020 normals.
Average annual snowfall ranges from about 4.2 inches (Pottstown) to 41.1 inches (Upper Black Eddy). Days with at least 0.1 inch of precipitation range from about 66 (Glen Mills) to 86 (Spring House). Those differences change footing depth requirements, how often wood needs sealing and how much snow and moisture a deck must shrug off — so the right design for one Pennsylvania community is not automatically right for another.
Which decking material is most popular for Pennsylvania conditions?
Across our Pennsylvania service area, capped composite is the strongest general fit because about 93 freeze-thaw days a year are hard on unsealed wood.
Capped composite suits shaded, leafy lots; cedar and treated pine fit traditional homes when maintained. Individual community pages explain how local housing age and the nearest weather station's data change that recommendation.
Which Pennsylvania counties do you serve?
Covered Pennsylvania ZIP codes fall in 4 counties: Bucks County, Chester County, Delaware County and Montgomery County.
| County | Covered ZIPs | Communities |
|---|---|---|
| Bucks County | 33 | 32 |
| Chester County | 33 | 31 |
| Delaware County | 14 | 14 |
| Montgomery County | 47 | 46 |
Exact coverage
Every covered Pennsylvania city and ZIP code
Grouped by 3-digit ZIP prefix. Only the ZIP codes shown are eligible — neighboring ZIPs in the same city or town may not be.
ZIP prefix 189xx
- Buckingham
18912
- Carversville
18913
- Chalfont
18914
- Colmar
18915
- Doylestown
18901, 18902
- Dublin
18917
- Erwinna
18920
- Ferndale
18921
- Fountainville
18923
- Furlong
18925
- Hilltown
18927
- Jamison
18929
- Kintnersville
18930
- Line Lexington
18932
- Lumberville
18933
- Montgomeryville
18936
- New Hope
18938
- Newtown
18940
- Ottsville
18942
- Perkasie
18944
- Pineville
18946
- Pipersville
18947
- Point Pleasant
18950
- Richboro
18954
- Silverdale
18962
- Souderton
18964
- Southampton
18966
- Upper Black Eddy
18972
- Warminster
18974
- Warrington
18976
- Washington Crossing
18977
- Wycombe
18980
ZIP prefix 190xx
- Abington
19001
- Ambler
19002
- Ardmore
19003
- Bala Cynwyd
19004
- Broomall
19008
- Bryn Athyn
19009
- Bryn Mawr
19010
- Dresher
19025
- Elkins Park
19027
- Feasterville Trevose
19053
- Flourtown
19031
- Fort Washington
19034
- Gladwyne
19035
- Glenside
19038
- Hatboro
19040
- Haverford
19041
- Havertown
19083
- Horsham
19044
- Huntingdon Valley
19006
- Jenkintown
19046
- Langhorne
19047
- Media
19063
- Merion Station
19066
- Morrisville
19067
- Narberth
19072
- Newtown Square
19073
- Oreland
19075
- Springfield
19064
- Swarthmore
19081
- Villanova
19085
- Wallingford
19086
- Wayne
19087
- Willow Grove
19090
- Wyncote
19095
- Wynnewood
19096
ZIP prefix 193xx
- Avondale
19311
- Berwyn
19312
- Brandamore
19316
- Chadds Ford
19317
- Cheyney
19319
- Coatesville
19320
- Cochranville
19330
- Devon
19333
- Downingtown
19335
- Exton
19341
- Glen Mills
19342
- Glenmoore
19343
- Immaculata
19345
- Kennett Square
19348
- Landenberg
19350
- Lincoln University
19352
- Malvern
19355
- Modena
19358
- Paoli
19301
- Pomeroy
19367
- Sadsburyville
19369
- Thorndale
19372
- Thornton
19373
- Toughkenamon
19374
- Unionville
19375
- West Chester
19380, 19382, 19383
- West Grove
19390
ZIP prefix 194xx
- Blue Bell
19422
- Bridgeport
19405
- Chester Springs
19425
- Collegeville
19426
- Conshohocken
19428
- Gwynedd
19436
- Gwynedd Valley
19437
- Harleysville
19438
- Hatfield
19440
- Kimberton
19442
- King Of Prussia
19406
- Lafayette Hill
19444
- Lansdale
19446
- Mont Clare
19453
- Norristown
19401, 19403
- North Wales
19454
- Oaks
19456
- Parker Ford
19457
- Phoenixville
19460
- Plymouth Meeting
19462
- Pottstown
19464, 19465
- Royersford
19468
- Schwenksville
19473
- Skippack
19474
- Spring City
19475
- Spring House
19477
- Worcester
19490
- Zieglerville
19492
FAQs
Pennsylvania deck questions
Do you build decks everywhere in Pennsylvania?
No. We serve 127 specific ZIP codes in 122 Pennsylvania communities, concentrated in Philadelphia's Western and Northern Suburbs. Every covered ZIP is listed on this page.
Do I need a permit for a deck in Pennsylvania?
Pennsylvania's Uniform Construction Code applies statewide and is enforced by municipalities or third-party agencies they designate. Contact your township or borough. Confirm with the building department for your address before work begins.
What decking material works best in Pennsylvania?
Capped composite suits shaded, leafy lots; cedar and treated pine fit traditional homes when maintained.
When is the best time to build a deck in Pennsylvania?
Spring through fall is prime construction season; township permit timelines vary.
How old are homes in your Pennsylvania service area?
The median home across our covered Pennsylvania ZIP codes was built around 1975 (Census ACS 2020–2024), versus 1965 statewide.
Pennsylvania
Planning a deck in Pennsylvania?
Call (888) 555-0123 to talk with a deck specialist about your project.
