Providing Professional Door Replacement Services in Casper, WY

Call 307-360-7451 now to request a free estimate

Look to Us for Door and Window Installation Services in Casper, WY

You can trust a general contractor with 35+ years of experience

Replacing your damaged doors and windows can increase your property’s energy efficiency, enhance your sense of security and boost your property value. Turn to Mountain West Building & Design in Casper, WY for expert door and window installation services.


We believe in treating our customers right, so you can expect us to finish your project with care and professionalism.

Here’s what we can do for you

We take pride in providing professional door replacement, window replacement, custom trim replacement and pole barn construction services in Casper, WY. No matter what you need help with, you can count on us to:


  • Show up on time
  • Pay attention to every detail
  • Communicate with you frequently


Customer service is our top priority.

Serving Residential and Commercial Clients Since 2019
Tell us about your property improvement needs

Our trim work stands out because it blends in

Whether you need door replacement or window installation services, you can trust us to get every detail right — including the trim work.

Your new trim will:


  • Match your interior décor or your property’s architecture
  • Fit your door or window perfectly
  • Look attractive


Once we’ve installed your trim, we’ll caulk the edges and apply paint, stain or varnish to protect the wood. Visit the Custom Trim Replacements page now to learn more about our process.

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