Continually Improving and Delivering Excellence
Nothing less than the best in construction & remodeling
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Roofing, Siding & Gutters
Roofing, Siding & Gutters
Six Signa is an expert roofing contractor with more than 30 years experience in commercial flat foot systems and residential applications.
We are your insurance experts having handled more than 1500 Insurance claims. We have Insurance claims experts on staff to make your experience smooth and efficient.
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Custom Remodels
Custom Remodels
Want to change the planning of your home or office? We offer customized remodeling services that can help you enhance your existing home and give it an all-new look. We help you with planning, designing, and execution of the remodeling process.
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Commercial Tenant Improvement
Commercial Tenant Improvement
Are you a property manager? It must be hard to maintain your properties and renovate each time when a tenant moves out. We make it simple for you with our commercial tenant improvement services.

Reliable General Contracting Company Serving MT & WY
Six Sigma Contracting is a full-service general contractor offering top-of-the-line residential and commercial construction services. With over 30 years of experience, we provide contracting services with unmatched quality. We also offer custom home remodeling, construction, insurance repairs, and commercial tenant improvement services.
About Our Company
Our founder has worked in the commercial and residential construction industry for more than 30 years. He has a BA and MBA in project management and was trained by the industries’ very best builders long before he began his own company in 2012 in Billings, MT.
When you hire us, your home or business is in the hands of a true professional. Whether your project is commercial roofing, siding, windows, and gutters or a full-scale high-end remodel. You are in excellent hands with Six Sigma Contracting, where excellence is the norm, not the exception.
Five Star Ratings
We are proud to have a long stable history of highly successful projects in both residential and commercial across the Billings Montana area. We are also consistently given a 5-star rating by our customers. Most importantly, your happiness is and always will be our measurement of real success.
Remember, “I don’t want all the business, just yours.”