David Simpson Construction, LLC

Our reputation is built on over 35 years of quality construction. We specialize in custom and log homes, in or around Montana.

Quality Construction Guaranteed: (406) 855-9933

"The difficult we do at once, the impossible takes a little bit longer.
We will build the home of your dreams at any location!"

David Simpson built a home in Montana for civilian astronaut Greg Olsen in 2008. Greg is the co-founder and chairman of Sensors Unlimited Inc., a company which develops optoelectronic devices. One of Sensors Unlimited's customers is NASA - and Greg became the third private citizen to make a trip to the International Space Station with the company Space Adventures in 2005. With Greg's permission, please enjoy a few photos of his home in the slideshow below.

New and Renovated Homes

(406) 855-9933

Commercial Construction

David  Simpson designed and built The Paint Store, a 4,200 square foot steel building on a monolithic slab.

Other large projects include two 15-20k square foot community centers. The construction on both buildings was a steel frame of columns and beams with structural masonry walls. These projects were designed and closely inspected by architects and engineers, which required attention to detailed plans and specifications, and the ability to work at a high professional level.

David has inspected commercial steel buildings, provided written opinions, consultation and testimony as a court qualified expert witness in civil litigation matters.

We sell American Steel Buildings. Lets talk about your project!

Custom Built New Homes


Whether you already have a full set of architect plans or merely a lot of ideas of what you want in your new home, we can turn the abstract into reality.

   • Custom homes and log homes    
   • Design your home from scratch
   • Modify mass market plans
   • Work from finished architect plans and specifications

We will make sure your home meets your needs, meets all applicable codes, and ensure its structural integrity. 

Our experience and special skills are applied from the footings to the last bit of interior trim work. We use top quality proven materials and techniques. However, we always are looking for new products and practices that are better or more efficient, while recognizing those that are merely fads or false economies.

Your satisfaction is important to us. We will make every effort to ensure not only that you are pleased with your new home, but with the building process itself. We stand behind our work. We do our best to assure your continued satisfaction and that you don't have any problems in the future. We work hard to maintain our reputation for producing high quality homes.

Your custom-built home will benefit from our finely honed skills and David's 30+ years of experience in design, civil engineering, construction, carpentry and cabinet-making.

David closely monitors each step of the building process. We control all phases either by doing the work ourselves or by seeing that the work is done to our specifications. Subcontractors are carefully selected because of their high standards and quality of work, and most have been working with us for many years

In addition to custom home building, David also offers Consulting and Owner's Representative services .

Call today to discuss how we can help you build the home of your dreams!