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Top-Rated Barndominium builders in Fremont - Updated Nov 2026

Avatar for Sullivan Exteriors
Sullivan Exteriors
4.7(
44
)
Shed, Barn or Playhouse - Repair

Serving Fremont, WI and surrounding areas

In business since 2008

Free estimates

"Mr. Sullivan brought an assistant and they cleaned our Appleton 2-story Victorian home's gutters and repaired a spot damaged by an ice dam in last year's severe winter. They were pleasant and professional. I would recommend them for this work and will be calling them soon for another gutter cleaning.
"
Recommended by95%of homeowners
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Barndominium Builders FAQs, answered by experts

While building a treehouse isn’t necessarily a death sentence, damaging the trunk is one of the ways to kill a tree. If you’re concerned about the tree, opt for a treehouse support system rather than attaching it directly to the trunk. This may involve using bolts and brackets to affix the structure to the tree's branches or establishing a standalone support system that remains unattached to the tree.

Rather than using a common two-by-four piece of wood for a rafter, you probably will use two-by-six, two-by-eight, two-by-ten, or even two-by-twelve boards. Wider lumber is typically a better choice in a larger building as it provides more sturdiness. Some installers may use wider lumber for rafters near the edges of the roof, where the greatest stress occurs, and save money with narrower lumber toward the middle.

The steep slope of an A-frame roof withstands high winds, heavy rain, and heavy snowfall, making them popular all over the world. A-frames also offer simple, quick construction. Finally, an A-frame typically has large windows on the non-roof sides to let in a maximum amount of natural light. Consequently, they are often an affordable building solution for the right homeowner and location.

Building a treehouse can vary in difficulty depending on factors such as design complexity, size, and the builder’s woodworking experience. Basic treehouses with simple designs can be manageable for DIYers with some carpentry skills, while more elaborate structures may pose challenges. Adequate planning, research, and careful execution can make the process more manageable, and resources like premade plans or professional assistance are always available for additional support.

Complex plumbing is tricky and expensive in an off-the-ground dwelling like this. By considering options like composting toilets, rainwater collection, and gray-water sinks, you save money and help the environment. 

The Fremont, WI homeowners’ guide to barndominium building

From average costs to expert advice, get all the answers you need to get your job done.