Custom Post-Frame Buildings in Montana
Family-owned and operated since 2005, H&H Custom Buildings specializes in turnkey post-frame buildings, barndominiums, and agricultural structures. Built by a Montana family with over two decades of experience in the Helena Valley.


Post-Frame Buildings Built for Montana Property Owners
H&H Custom Buildings has been constructing post-frame buildings across the Helena Valley and surrounding Montana communities since 2005. Founded by father and son Al and Lucas Irvin, the company combines decades of building and sales experience to deliver reliable structures for property owners in East Helena, and nearby areas. Their projects include personal shops, agricultural buildings, and custom barndominiums, all built through a turnkey process that covers excavation, concrete, framing, roofing, insulation, and interior finishes.
Post-frame construction is one of the most efficient building methods for large-span structures in Montana. By using embedded structural columns instead of traditional framing, these buildings allow wider open interiors, faster construction timelines, and strong long-term durability. H&H has the capacity to deliver 50 or more post-frame buildings per year, with a dedicated crew focused on starting and finishing every project without delays.
Reviews & Testimonials
H&H is the only Contractor/Builder you will ever need. They are very skilled, fast, and do the job right the first time. They show up on time and are a pleasure to work with. The process from design, customer service, to the build is exceptional. They pay attention to every detail, like lining up screws, using good materials, etc... I highly recommend. I will only use this company in the future. Thank you H&H for making my two dream patios beautiful.
Owners are fabulous and very easy to work with. Answered all my wifes and my questions at this time.
Great family owned and operated company. Smaller crews but they really work hard. They do quality work and in a timely manner.




