The exterior of an attractive modern home.Roof & Window Replacement Expertise for Oconomowoc, WI, Homeowners

If your home’s exterior is in need of an upgrade, you’re in the right place because you’ve found J&B Construction. We’re experts when it comes to roofing installation, window replacement, and other important home exterior upgrades and services. Plus, we’ve been working with homeowners in and around Oconomowoc, Wisconsin, for over 60 years, so you can trust in our knowledge and craftsmanship. We offer:


We offer a variety of roofing products, including asphalt shingles, metal panels, and flat roofing. Our roofing expertise is unmatched and we offer comprehensive services you may not find from other roofing contractors, like attic insulation, custom gutter systems, and flat roof coatings.

Replacement Windows

J&B Construction is a full-service window contractor, offering customizable windows with vinyl, fiberglass, or wood frames and professional installation to boost your home’s energy efficiency and curb appeal.

Exterior Doors

Need a new front door, storm door, or patio door? We can help with customizable options designed to be low maintenance, energy efficient, and beautiful in any design scheme.


Siding is a crucial component of your home’s exterior appearance and performance, which is why we offer plenty of beautiful, durable siding products. Options include vinyl, fiber cement, and LP® SmartSide® engineered wood siding.


A custom deck is the key to unlocking your yard’s potential, and our team can help with custom deck designs and professional installation.

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Are you interested in upgrading the exterior of your home in Oconomowoc, WI? Turn to J&B Construction and rest easy knowing you have one of the most experienced teams in the area on your side. Contact us today to find out more about our roofing installation, window replacement, and other services and get started on a project at your home.

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Enjoy Peace Of Mind
 The only complaint I have is when I have J&B do my roof in another 30 years or so, is Dave their sales man (a great guy) would not guaranty I could get the same great crew I had this time. They did a fantastic job. Much better than the last roofing company did. A nice bunch of guys. Did a very nice job cleaning up. I'd give them 10 stars but 5 is the limit. If you need a roof done this is the company you want to do it. One more point I need to make. The guys that did the chimney flashing are artists. I went up on the roof when they were done and was very pleased with not only the roofing job but the sculptured sheet metal work. It's kind of a shame it's on the roof and not hanging on the family room wall :). You get the point. Hire em. You'll like em. 
 We live in a historic designated neighborhood and recently had our 30 year wood shingle roof replaced with another wood roof and new gutters. From Day 1 of the project to the final day, the entire team was responsive, professional, and very competent. When some minor changes were proposed by us they quickly and effortlessly complied. After going through this experience with J&B, I would highly recommend them to anyone considering a roof and gutter replacement, whether it be a simple or complicated project. 
 J & B did an amazing job from start to finish. The initial meeting at my home took place exactly at the time that was agreed upon and Scott was thorough in his explanations and transparent about costs. When the time came to begin the project, the team that showed up was friendly, professional and timely in getting the project done. The cleanup afterward was such that it looked like they hadn't been there at all. The roof looks great, there were no surprises and Scott came by to inspect the work and explain the warranty upon job completion. I would highly recommend them. 
energy star
We Offer Financing

We offer easy financing options so you can start your project today.

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Serving Homeowners Throughout The Milwaukee Suburbs & Southeast Wisconsin
J&B Construction

W140 N10589 Fond du Lac Ave, Unit C
Germantown, WI 53022
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