County overview
Home improvement across Milwaukee County
Milwaukee County holds the region's oldest housing and some of its newest. C&L Property Improvements, a family-owned company based in Muskego just west of the county line, does painting, roofing, window, siding and remodeling work across it.
The core is pre-war. In the City of Milwaukee the median home dates to 1953 and 34% of units were built before 1940; the Encyclopedia of Milwaukee records that by 1911 the duplex was the city's most common house type. The first ring of suburbs followed close behind, with medians of 1954 in Wauwatosa and 1956 in West Allis, which doubled in size when it annexed its west side in 1954. That is where two-flats, bungalows, lath-and-plaster walls and lead paint are ordinary working conditions; see the Milwaukee page and the West Allis page.
Farther out, the county filled in after the war. Hales Corners became a village in 1952; Franklin, which the Encyclopedia says began turning from farmland to suburb in the early 1950s, became a city in 1956; Greenfield incorporated in 1957 as part of a suburban wave. Greendale is its own story, a federal greenbelt town begun in 1936. The newest stock is in the south: the median home in Franklin dates to 1990 and in Oak Creek to 1991. Muskego sits just across the county line from Franklin; Hales Corners is about 7 road miles from Muskego and the middle of Milwaukee about 20.
Unlike Waukesha and Racine counties, Milwaukee County has no towns and no unincorporated land. All of it lies inside 10 cities and 9 villages, so every address answers to a city or village building office. Lines can still surprise people. The state reassigned 700 residents from Franklin to the City of Milwaukee in its population base, and old place names such as Carrollville and Oakwood (in Oak Creek) or Saint Martins (in Franklin) do not tell you which office to call. A property tax bill does.
Community pages in Milwaukee County
- FranklinMilwaukee County · about 9 miles east of MuskegoHalf of Franklin's houses were built in 1990 or later, so most jobs here are on homes covered by Wisconsin's Uniform Dwelling Code, in a city that requires permits for both re-roofing and re-siding and sends metal roofs to architectural review.
- Hales CornersMilwaukee County · about 7 miles east-northeast of MuskegoThe typical house in Hales Corners was built around 1962, and three in four predate 1980. Exterior work here usually means old paint, old roof layers and a village permit process that still runs on paper.
- GreenfieldMilwaukee County · about 12 miles east-northeast of MuskegoMore than 40% of Greenfield households live in multi-unit housing, much of it condominiums. That changes who decides on the building, and it changes the permits: a house can be re-roofed without one, but a condo cannot.
- West AllisService area · Milwaukee CountyC&L Property Improvements is based in Muskego, about 13 road miles southwest of West Allis, and takes on painting, roofing, window, siding and remodeling work across the city. Most of the housing here was built before 1980, which shapes both how the work is done and which rules apply to it.
- WauwatosaService area · Milwaukee CountyC&L Property Improvements, a family-owned company based in Muskego, works on Wauwatosa houses from the pre-war blocks to the 1950s streets. In this city the permit question is rarely about size. It is about whether you are changing the style of what is already there.
- MilwaukeeService area · Milwaukee CountyC&L Property Improvements is a family-owned company based in Muskego, about 20 road miles from the middle of Milwaukee, and it takes on painting, roofing, windows, siding and remodeling in the city. Milwaukee's houses are old, varied and often shared by two households, and the City's rules are its own.
- Oak CreekService area · Milwaukee CountyOak Creek's housing is young for Milwaukee County, and it sits on the lake. C&L Property Improvements, based in Muskego about 16 road miles to the west, works here on roofs, gutters, siding, bathrooms and interiors.
- GreendaleMilwaukee County · a 1930s federal greenbelt townGreendale was planned and built by the federal government, and its original homes are masonry, not wood frame. Decades of later houses surround that core, and 76.6% of the village's homes predate 1980.
Every municipality
19 cities, villages and towns, as listed by the state. Which one you live in decides which permit office you call.
Cities 10
- City of Cudahy
- City of Franklin
- City of Glendale
- City of Greenfield
- City of Milwaukee
- City of Oak Creek
- City of South Milwaukee
- City of St. Francis
- City of Wauwatosa
- City of West Allis
Villages 9
- Village of Bayside
- Village of Brown Deer
- Village of Fox Point
- Village of Greendale
- Village of Hales Corners
- Village of River Hills
- Village of Shorewood
- Village of West Milwaukee
- Village of Whitefish Bay
Worth knowing in Milwaukee County
Re-roofing: exempt in some cities, permitted in others
For a one- or two-family house, Milwaukee, West Allis and Oak Creek require no permit for a like-for-like re-roof, Wauwatosa exempts it only if the roofing is the same style, and Greenfield requires one only for a third layer. Franklin, Hales Corners and Greendale require a permit. The permits guide compares the rules in detail.
Milwaukee's own contractor license
The City of Milwaukee requires home-improvement contractors to hold a City license in addition to their state credentials. Ask for it before hiring anyone for work in the city, and confirm it with the Department of Neighborhood Services.
Lead-era housing is the norm in the older cities
Units built before 1980 make up 84.2% of Milwaukee's housing, 83.9% of West Allis's and 81.6% of Wauwatosa's, against 34.1% in Franklin and 35.9% in Oak Creek. Wisconsin's lead-safe rule covers paid work on pre-1978 homes that disturbs paint or replaces a window. See the lead-safe renovation guide.
Historic review without a building permit
In Milwaukee's historic districts, the Historic Preservation Commission requires a Certificate of Appropriateness for re-roofing, re-siding and window replacement even though those jobs may need no building permit. Wauwatosa's commission reviews locally designated properties. Whether Greendale's commission reviews exterior work on the original village homes is not something we have verified.
The lake sets the weather
The State Climatology Office puts Milwaukee County's average snowfall at 48.1 in. and notes that Lake Michigan keeps summer days cooler and winter nights warmer, with lake-effect snow, spring fog and fall winds. Along the shore, the Wisconsin Coastal Resilience project lists Oak Creek among communities whose bluffs, beaches and harbor infrastructure are vulnerable to erosion and coastal storms.
Sources
- 1.City of Milwaukee DNS, Roofing permit application (opens in a new tab)
- 2.City of West Allis, Do I need a permit (opens in a new tab)
- 3.City of Oak Creek, Residential alteration (opens in a new tab)
- 4.City of Wauwatosa, Re-roofing (opens in a new tab)
- 5.City of Greenfield, Do I need a permit (opens in a new tab)
- 6.City of Franklin, Re-roofing (opens in a new tab)
- 7.City of Milwaukee, Home improvement contractor license (opens in a new tab)
- 8.U.S. Census Bureau, ACS 2020–2024 5-year (B25034, B25035) (opens in a new tab)
- 9.Wisconsin DHS, Lead-safe renovation FAQ (opens in a new tab)
- 10.City of Milwaukee HPC, Certificates of Appropriateness (opens in a new tab)
- 11.City of Wauwatosa, Historic preservation (opens in a new tab)
- 12.Wisconsin State Climatology Office, Milwaukee County climate profile (opens in a new tab)
- 13.Wisconsin Coastal Resilience (opens in a new tab)
Questions
Are there any towns or unincorporated areas in Milwaukee County?
No. The whole county is divided among 19 cities and villages, and permits come from the one your property is in. That is different from Waukesha and Racine counties, where towns still exist.
Does the City of Milwaukee require a contractor license?
Yes, for home-improvement contractors working in the city. The Milwaukee page covers it along with the City's permit rules.
Is my house old enough for lead-safe rules?
If it was built before 1978, yes. In the older cities of the county that covers most homes; in Franklin and Oak Creek, about a third.
Which parts of the county does C&L serve?
All of it, from its base in Muskego. The closest communities, such as Hales Corners and Franklin, are 15 to 21 minutes away by road, and the middle of Milwaukee about 30. Estimates are free.

Free estimates · Mon–Fri 8 a.m.–6 p.m. · Sat 9 a.m.–6 p.m.
Tell us about the house.
What needs doing, roughly how old the house is, and when you would like it done. C&L will set up a time to look at it in person.
