(801) 572-8039
1520 N STATE STREET #101
LEHI, UTAH 84043
9:00 AM - 5:00 PM

Utah’s Replacement windows
& siding experts

Quality, durable and well-insulated windows and siding are critical
for making it through blustery Utah winters comfortably
and with a reasonable utility bill.
Utah Windows Installation Company

Window Installation

Utah Windows Replacement Company

Window Replacement

Utah Siding Replacement Company

Siding Replacement

Utah Windows Replacement & Siding Installation Company

MOUNTAIN STATES windows & siding


We are the most trusted source of quality, durable, and well-insulated windows and siding for homeowners across the Wasatch Front.


We can help you plan, design, and build your dream home today!

1520 N State Street
Lehi, Utah 84043

9:00 am - 6:00 pm


We can help you plan, design, and build your dream!


I had my windows installed about 18 months ago. The first winter that happened I started to get water coming through just a little. Later, I started getting full on leaking. I can never get anyone to call me back to address the issue. I don't feel at all that I got a good value.Update: I was contacted by the company, and they came out and resealed a lot of the windows. They were nice and attentive. I'm still not sure how great these windows are as I'm not a window person, but the company itself is very good.
Ray Mullings
Ray Mullings
19:35 18 Dec 20
Great price and product. Did a great job installing our six windows. I highly recommend Mountain States Windows & Siding! Thank you!!
Sherry White
Sherry White
22:36 13 Dec 20
Dave is amazing! Such a charismatic guy. He does great work and is personable. Would recommend this company to anyone looking for reasonable pricing and great service.
Cassie Arnold
Cassie Arnold
01:08 13 Oct 20
We are very pleased with our windows! Dave did a good job of sharing all of the information and what to expect. The install was quick and seamless and done in one day. Overall, we had a great experience and would recommend Dave’s friendly service to anyone.
Tomio _sugi
Tomio _sugi
21:15 03 Sep 20
I am completely impressed with Mountain States Windows and Siding. We needed to replace a very small section of vinyl siding on our house. Most companies weren't willing to help me find a match or sell me such a small amount. But Mountain States was so helpful! They were responsive, knowledgable, and generous. They really bent over backwards to help me get the couple pieces I needed (and quickly, too!). There really is no job too small for these guys! I highly recommend this professional, accommodating, honest company.
Rachelle Orsak
Rachelle Orsak
16:02 25 Aug 20
Gephardt Approved

Gephardt Approved

This locally-owned cabinet company is Gephardt approved, which means premium customer service. Find out more about the Bill Gephardt approval and the $1,000 guarantee today. According to Bill, Mountain States Kitchen & Bath meets his high standard of business conduct, and he’s one of many who consider our company Utah’s leading kitchen re-modelers and bath renovators. A flawless Better Business Bureau (BBB) rating, Gebhardt approval, and hundreds of happy customers across the Beehive State cannot be wrong.

Layer 40

Windows Installer, Replacement Windows, and Siding Experts in Utah

Quality, durable, and well-insulated windows and siding are critical for making it through blustery winters comfortably and with a reasonable utility bill. It doesn’t matter if your home is a brand new construction or a vintage treasure—new or replacement windows and siding are both easy ways for contractors to save money on upfront costs. Unfortunately, the homeowners are the ones who end up paying for that shortcut. Mountain States Windows & Siding specializes in high-quality home window replacement and siding for optimal insulation. The initial costs can be customized to fit within your budget, but the real money savings comes after the winter. Homeowners are amazed by how much money and energy they can save with our services, which include vinyl, ply gem, triple pane, and energy star window installation.


Contact us today to discover what a new or improved feature can do for your home, your happiness and your home’s value. At Mountain States Windows & Siding, we use luxury and customization to turn your house into a home.