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  • Average homeowner rating star icon3.8
    Average homeowner rating
  • Verified reviews icon65
    Verified barndominium building reviews

Top-Rated Barndominium builders in Johnston - Updated Nov 2026

Avatar for Cover's Construction LLC
Cover's Construction LLC
5.0(
8
)
Garage - BuildShed, Barn or Playhouse - Build

Serving Johnston, IA and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"The entire process from planning to completion was easy, efficient and quickly completed. Joe and his crew are such nice guys and hard workers. They work hard and got the job done faster than I thought possible. The building if perfect!"
Deck with pavilion
Utility building reskin
Backyard shop
Pool Gazebo
Storage/ Shop

+4

Response time3 days
Recommended by100%of homeowners
Avatar for F and F Construction Remodel, LLC
F and F Construction Remodel, LLC
4.9(
24
)
Garage - Build

Serving Johnston, IA and surrounding areas

Approved

In business since 2020

Free estimates

Customers say: Quality work

"We used F and F Construction to help repair and replace boards, spindles, and steps at our Urbandale home on 158th street. Brent and Matt were fantastic in getting the job done quickly and did quality work. We talked for awhile after the job was finished. They are easy to talk with and know what they are doing. I highly recommend them to other home owners in the area. -Winston Morris."
Response time4 days
9 neighbors recently requested a quote
Recommended by89%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.

While it’s best to have access to large, healthy, strong trees in a safe position, treehouse living is still possible without them. Contractors can fit tree posts to build the structure onto or use posts as additional support alongside the trees themselves. If you’re in doubt about the suitability of the trees on your land, consult with a local treehouse builder before you start the project.

Common pitfalls include underestimating the cost of site preparation, overlooking permit and utility fees, and not setting aside funds for unexpected changes. Change orders during construction can disrupt your budget. It’s best to plan a detailed budget, obtain multiple quotes, and include a 10% to 15% contingency fund for unexpected expenses.

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 foundation for a pole barn should be at least 36 inches thick to ensure that the piers won’t shift from frost heave.

The Johnston, IA homeowners’ guide to barndominium building

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