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

Mountain States Windows & Siding

Triple Pane Windows Replacement

Why Choose Triple Pane Windows For Your Utah Home?

Triple pane windows can increase the U-Factor of dual pane, clear glass windows by nearly 52%. This improvement comes from a combination of an extra pane of glass, multiple cavities that contain insulating layers of argon gas, and additional glass surfaces on which to apply our Low E coating technology.

Whether you live in a climate that requires more heating, or cooling for your home, the key to Triple Pane is stopping heat flow. In heating climates, such as those across the Wasatch Front, triple pane windows maintain more warmth and energy. In cooling climates, triple pane windows keep more of the radiant heat and temperatures out. Utahns are used to both weather extremes, but these windows can make being indoors more comfortable. Reach out to us below to learn more.

our guarantee

Our prices always include: a final measurement by our technician, removal, install, caulking inside and out, tarping the floors and carpets during install, cleaning up and hauling away all scraps, all taxes, and best of all, no money down—that’s right, hold us to what we say we’re going to do before you pay anything! In addition, if you can find a better price anywhere in Utah, we’ll either match their price for you or give you $100. We know we can give you the best price and we are willing to do what it takes to back it up.

Our triple pane windows are some of the most advanced in the market today, and they can mean energy savings for your home.

Call or contact us now for a free estimate and demo of the energy efficiency and durability of our high-quality windows!


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