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Top-Rated Barndominium builders in Ottawa - Updated Nov 2026

Avatar for B&J Contracting
B&J Contracting
5.0(
10
)
Shed, Barn or Playhouse - Build

Serving Ottawa, OH and surrounding areas

Approved

In business since 2023

Free estimates

Small jobs welcome

"My experience with this company has been amazing! My home was damaged by a fierce tornado and I wasn't even sure they could restore it. They did that and then some! They're reliable, timely, efficient and do great quality work. My home has been restored and it's even better than it was before. Highly recommend! In a day where it's hard to find great help and reliability at a fair price, you'll find the best in B and J contractors."
Flooring
Tile
Response time3 days
5 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for HD Custom Carpentry
HD Custom Carpentry
5.0(
3
)
Garage - Build

Serving Ottawa, OH and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

Response time12 hrs
Recommended by100%of homeowners
Avatar for In N Out Handyman Services N More LLC
In N Out Handyman Services N More LLC
4.6(
19
)
Garage - BuildShed, Barn or Playhouse - Build

Serving Ottawa, OH and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"As a first time home buyer, I was already facing a new and stressful situation all by myself. I was aware when I purchased the home it would require work prior to moving in. I sent request to multiple handyman and larger companies to obtain a quote and estimation of time for being able to complete what I need to be able to move in, and then the remaining work. I received quote and estimate on time from this company faster and prompter than any of the other companies I submitted too. After receiving a quote, they came out to my home after scheduling a time frame. They arrived and followed me through the house, paying attention to the details I requested, took notes on everything I was wanting and requesting, and Kareem was able to understand exactly what I needed done. I asked Kareem and his company to run and replace the wiring in the kitchen, the wiring was so old it was at danger of arching and catching fire, and I needed the basement to be waterproofed by installing a sub pump and the entire drainage and pipe system. I informed Kareem I had to have all of this completed within three days, I had to be moving in on the Fourth day, not only did he complete it within the time frame, he completed on the second day by noon, giving me extra time to move in. I was more than happy with this of course, however, as to rewiring of my kitchen he was able to place plugs above the counter tops in very convenient places for me, making life easier. As to waterproofing my basement, the completed work looks amazing, and I am unable to tell that the concrete floors had been ripped open, and was done perfectly. I would highly recommend Kareem and his Company any day and to any of my friends and or family."
Wood Burning Stove Instal
Wood Burning Stove Instal
Wood Burning Stove Instal
Wood Burning Stove Instal
Wood Burning Stove Instal

+42

Response time1 day
Response rate99%
Recommended by93%of homeowners
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Barndominium Builders FAQs, answered by experts

It is recommended that you check with your local building official on barn building requirements and rules, since size restrictions vary greatly from region to region based on what your property is zoned for. Some cities limit barn construction depending on if your property is residential or commercial. The three main factors your building commission will evaluate are:

  • Height and lot coverage: How tall your barn is and how much of your total property it occupies

  • Setback: Distance between barn and property line

  • Easement: Legal right for another owner to access another’s property

The most significant expense when building a barndominium is constructing the metal shell, which includes the roof, doors, and windows. Additional exterior components impacting the overall cost include metal siding and the concrete foundation.

While prices fluctuate because of increased demand, fewer supplies, and engineering time, OSB generally remains more affordable than plywood at $1 to $2.40 per square foot compared to the $4.50 to $10 for plywood. Cost is only one factor you should consider when deciding between OSB and plywood.

Whether you should choose a flat roof or a sloped roof depends on your particular situation. Flat roofs tend to be less expensive to install. However, sloped roofs have longer lifespans and stand up better to heavy snow and other inclement weather.

Keep in mind that even a flat roof needs to have a slight slope, usually around 1/2 inch for every foot. If it is completely flat, water will pool and cause damage, either from weight or leakage or rot.

In the U.S., original and converted carriage houses are most often found in New England, New York, and other parts of the Northeast. New construction carriage houses can be found across the country, and are often added to properties with Colonial-style homes for additional living, storage, or work space, although they can be found in many different styles.

The Ottawa, OH homeowners’ guide to barndominium building

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