Our Business
Built on Trust and Experience
Quality Craftsmanship Since the 1980s
About Mountain Range Builders LLC
Mountain Range Builders LLC has been delivering reliable, high-quality exterior construction services for over 40 years. Founded and led by Demetry Erofeef, our company is grounded in hard work, integrity, and a commitment to doing the job right. What started as a small operation in the 1980s has grown into a trusted team of skilled professionals serving clients throughout Idaho and Montana.
Built on Experience. Driven by Quality.
From siding and framing to roofing, windows, and WRB installations—our focus is delivering dependable results that stand the test of time. Our crew includes experienced siders and framers, all dedicated to precise, efficient work that meets today’s standards while honoring time-tested craftsmanship.
Our Promise
Delivering What We Promise, Every Time
We understand your home or building is a significant investment. That’s why we treat every project with care and respect, using trusted materials and proven building practices. We’re fully licensed and insured in Idaho and Montana, and back our work with solid warranties for your peace of mind.
How We Work
Our Standard Working Process
Consultation
We start by reviewing your goals, budget, and project scope for clarity.
Planning
We create a clear plan with materials, timelines, and next steps defined.
Installation
Our team completes the build with skilled craftsmanship and quality materials.
Final Walkthrough
We review the finished work with you to ensure everything meets expectations.
Projects Completed
Years of Experience
Satisfaction Guarantee
Team Members
What Our Clients Say
Trusted By Homeowners and Businesses Alike
We’re proud to earn the trust of homeowners and businesses across Idaho and Montana. Here’s what some of our clients have to say about working with Mountain Range Builders LLC:
Thank You!
This has been a dream project. The crew were exceptionally professional and took care to ensure all details were carefully completed.
Highly Recommend!
I’m very happy with the end result. The installers were very professional and great to work with.
Excellent Crew.
Worked fast, very respectful, and cleaned worksite. Thank You!
Partnering with Industry-Leading Suppliers
