Steve Wirtz Builders, Inc.

Steve Wirtz Builders, Inc. Steve Wirtz Builders, Inc. is committed to working with you through every step of your home improvem
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Steve Wirtz Builders, Inc has been a part of the Fond du Lac Home Builders Association for ten years and is recognized in the industry for quality work and competitive pricing. Being fully insured and licensed, we are an accredited member of the Better Business Bureau.

The kitchen is where this one really delivers. 🍳Custom white cabinetry. Center island with a built-in cooktop. Stone bac...
09/10/2026

The kitchen is where this one really delivers. 🍳

Custom white cabinetry. Center island with a built-in cooktop. Stone backsplash that ties everything together without trying too hard. This kitchen was designed for real life, not just for photos.

Step onto that front porch and the wood-planked ceiling and composite decking tell you everything you need to know about how this whole build was approached. Nothing was an afterthought.

Kitchen island: yes or no? 👇

Link in the comments.

📍 N5420 US-45, Fond du Lac, WI 54937
📞 (920) 923-6063

Couldn’t let the day pass without wishing a VERY HAPPY BIRTHDAY to Steve!If you see him today make sure to give him a ha...
09/09/2026

Couldn’t let the day pass without wishing a VERY HAPPY BIRTHDAY to Steve!

If you see him today make sure to give him a hard time! 🤪

Without him, none of us here at Steve Wirtz Builders would be here!

Custom from the ground up. 🔨Every detail on this build was thought through before the first nail went in. Structural dec...
09/08/2026

Custom from the ground up. 🔨

Every detail on this build was thought through before the first nail went in. Structural decisions that support the dramatic roofline. Framing that sets up the interior exactly the way the family envisioned it. A covered front porch built with composite decking and a wood-planked ceiling so it actually holds up to Wisconsin weather year after year.

New construction isn't just building a house. It's building the right house for the right family on the right lot.

What's the one detail you'd never compromise on in a build? 👇

Link in the comments.

📍 N5420 US-45, Fond du Lac, WI 54937
📞 (920) 923-6063

Modern farmhouse in Campbellsport. This one had a clear vision from day one. 🏡White siding, natural stone accents, and a...
09/07/2026

Modern farmhouse in Campbellsport. This one had a clear vision from day one. 🏡

White siding, natural stone accents, and a roofline that gives the home real character without overcomplicating it. Rural setting, room to breathe, and a family ready to build something that actually fits how they live.

That's the kind of project we show up for.

Modern farmhouse, craftsman, ranch, what's your dream style? 👇

Link in the comments.

Steve Wirtz Builders - Started small, now we build it all!
📍 N5420 US-45, Fond du Lac, WI 54937
📞 (920) 923-6063

Not many people can say they know a chimney inside and out. 🧱 Shawn's one of them.As a Chimney Tech with our Chimney Med...
09/07/2026

Not many people can say they know a chimney inside and out. 🧱 Shawn's one of them.

As a Chimney Tech with our Chimney Medics team, Shawn brings a sharp eye for detail and a genuine care for doing the job right. Inspections, repairs, cleanings, whatever the chimney needs, he's on it and he's thorough.

Ever had a chimney issue turn into a bigger fix than you expected? Tell us about it. 👇

That's the kind of crew we've built here. And we're proud of it.

Steve Wirtz Builders - Started small, now we build it all!
📍 N5420 US-45, Fond du Lac, WI 54937
📞 920-921-7655

Sometimes you don't need a new house. You just need more of yours. 🏠🔨A well-built addition gives you the space you need ...
09/03/2026

Sometimes you don't need a new house. You just need more of yours. 🏠🔨

A well-built addition gives you the space you need without the cost and hassle of moving. More room for the family. A garage that actually fits everything. A master suite worth coming home to.

We design and build additions that blend seamlessly with your existing home. Same materials. Same rooflines. Same quality throughout.

Fall is actually the perfect time to start planning. Get the details sorted now and we can break ground when the timing is right.

If your house is running out of room, let's talk about what's possible.

What's the one room in your house that never seems to have enough space? 👇

Link in the comments. 💪

Steve Wirtz Builders - Started small, now we build it all!

📍 N5420 US-45, Fond du Lac, WI 54937
📞 (920) 923-6063

The best time to finish your basement is before you spend another winter wishing you had. ❄️🔨This basement went from exp...
09/01/2026

The best time to finish your basement is before you spend another winter wishing you had. ❄️🔨

This basement went from exposed joists and concrete floors to a space this family actually wants to spend time in. Contemporary dining area. Designer pendant lighting. Luxury vinyl flooring that holds up to real life.

Same square footage. Completely different home.

When it's too cold to be outside, a finished basement gives you somewhere to actually go. Movie nights. Game days. A place to spread out without taking over the main floor. 💪

Fall is the perfect time to start. We get in, get it done, and you're enjoying it all winter long.

Thinking about finishing your basement? We'd love to show you what's possible. Link in the comments.

Steve Wirtz Builders - Started small, now we build it all!
📍 N5420 US-45, Fond du Lac, WI 54937
📞 (920) 923-6063

Riley's the guy who'll figure out a fix before you even finish explaining the problem. As one of our carpenters, he brin...
08/31/2026

Riley's the guy who'll figure out a fix before you even finish explaining the problem. As one of our carpenters, he brings sharp problem-solving and a work ethic that doesn't quit until the job's done right.

(He also happens to be in A LOT of our pics... we know he loves it! 🤣👀)

Whether it's framing, finish work, or something in between, Riley treats every project like it's his own. That kind of care is exactly what we want on every job site.

That's the kind of crew we've built here. And we're proud of it. 🛠️

Steve Wirtz Builders - Started small, now we build it all!
📍 N5420 US-45, Fond du Lac, WI 54937
📞 920-921-7655

We put the tools down for the weekend. 🔨That's usually when the honey-do list picks up. If yours isn't getting done, we ...
08/29/2026

We put the tools down for the weekend. 🔨

That's usually when the honey-do list picks up. If yours isn't getting done, we do that too. 😉

📍 N5420 US-45, Fond du Lac, WI
📞 (920) 923-6063

The end of summer always gets us thinking about fall and the holidays. 🍂Looking around your home and wishing for more ro...
08/28/2026

The end of summer always gets us thinking about fall and the holidays. 🍂

Looking around your home and wishing for more room, a better landing spot, more organization, or maybe a spot for mom to get away to?

We can build that. 💪

📍 N5420 US-45, Fond du Lac, WI
📞 (920) 923-6063
Started small, now we build it all!

Address

N5420 US/45
Fond Du Lac, WI
54937

Opening Hours

Monday 7am - 3:30pm
Tuesday 7am - 3:30pm
Wednesday 7am - 3:30pm
Thursday 7am - 3:30pm
Friday 7am - 3:30pm

Telephone

+19209236063

Website

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