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Welcome to Onsite Construction

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Since 2002, OnSite Construction has been delivering quality construction services to the entire Southeast Wisconsin region, focusing much of their efforts in Walworth County.

Some of the cities/towns we serve are:

  • Elkhorn
  • Lake Geneva
  • Williams Bay
  • Walworth
  • Fontana
  • Delavan
  • East Troy
  • Pell Lake
  • Genoa City
  • And all surrounding cities/towns…

What Others Are Saying About OnSite Construction

Had a great experience working with Erick and OnSite Construction.  Came out and gave me a quote, and was upfront about the timing on everything.  He and his guys did a great job on a kitchen remodel and I will definitely use them again.


Erick and his crew did a great job installing windows and siding at my house after a storm ripped through and did some damage.  It’s nice to work with someone that skips the BS and does what he says!  Definitely recommend OnSite Construction.


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