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

1483 Hawthorne Drive , Delafield, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Northgate ClimateFlex
  • CertainTeed Northgate ClimateFlex: Max Def Moire Black
34319 Four Seasons Road , Oconomowoc, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Northgate ClimateFlex
  • CertainTeed Northgate ClimateFlex: Max Def Espresso
N8295 Pritchard Farm Road , Ixonia, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Landmark PRO
  • CertainTeed Landmark PRO: Max Def Weathered Wood
393 Plat Road , Richfield, WI, US
  • Year of Install
  • Year of Install: 2025
  • CertainTeed Landmark PRO
  • CertainTeed Landmark PRO: Max Def Weathered Wood
4106 Stillwater Circle , Waukesha, 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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Peter Montross - 3270 Dartmouth Dr , Brookfield, WI, US
I hired Erik / Big Fish to re-roof our house, and the entire experience was absolutely fantastic. Erik was very professional, responsive, and his advice was solid. He didn't push me toward anything that wasn't in my best interests - He gained my trust quickly. He and his team were very efficient - I was on a tight timeline to have the work done, and his team came in and did a great job thoroughly but quickly, cleaned up everything, and I ended up with a beautiful new roof. I very, very highly... Read more