Take a look at our past work!

Big Fish Contracting LLC

Renovating a home... Redeeming an industry.

As a locally-owned contractor with two decades of experience in Southeastern Wisconsin, we have the expertise to adequately assess the overall condition of your home and provide real solutions that meet the demands of our harsh weather and regional terrain. We work to earn your trust and honestly share our industry knowledge so you can make informed decisions on how to proceed with your home remodel or improvement project. We proudly offer full design and build services for interior and exterior renovations- for any home remodeling project!

Our Work

1621 Nagawicka Road , Hartland, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Presidential Shake
  • CertainTeed Presidential Shake: Charcoal Black
W377S5138 West Pretty Lake Road , Dousman, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Northgate ClimateFlex
  • CertainTeed Northgate ClimateFlex: Max Def Hunter Green
873 Lois Court , Hartford, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Landmark PRO
  • CertainTeed Landmark PRO: Max Def Weathered Wood
729 Woodthrush Lane , Richfield, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Landmark PRO
  • CertainTeed Landmark PRO: Max Def Shenandoah
3325 South 26th Street , Milwaukee, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Landmark PRO
  • CertainTeed Landmark PRO: Max Def Shenandoah

Customer Testimonials

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W227S4195 Concord Ct , Waukesha, WI, US
ustomer service is great. He is very personable and responsive with all calls. He answered all my questions and is very friendly. The quality of the work they do is the best around. I have not found another contracting that does the quality of work for the cost, as good as Big Fish Contracting. All the employees are all very professional.
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Matthew Prange - W334N5827 Garvin Ln , Nashotah, WI, US
Erik's crew did a great job. He was honest about an error that was made, and corrected it quickly at no additional cost. I would recommend to anyone.
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Jamie Young - 145 S Laurel Cir , Delafield, WI, US
This company and Erik is amazing. Every time I called or text I got the answer I needed and quick. I got three estimates and he was extremely competitive and did not nickel and dime me for change orders. I can’t wait to use him again!
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Cathy Hesprich - County Rd KE , Hartland, WI, US
I highly recommend this company because owner Erik Dieringer truly serves his community! This morning on my way to work, my car wheels slid on icy road conditions onto the side of the road and was stuck in the snowbank. While I waiting for police to come, Erik pulled over, asked me if I was OK, and offered to get his work truck and pull me out. He drove away and the police arrived. Moments later Erik was there with his truck and chain, and my car was back on the road within minutes. Erik i... Read more
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Terry J Wilkins - W320N1049 Butternut Ridge Ct , Delafield, WI, US
Had Big Fish Contracting Team handle major repairs to my home’s interior and upgrade to exterior roof after severe ice dam during winter. From recommendation on what needed to be completed including assistance with insurance claim through to final execution, their work and performance was excellent. Great experience and service!