Trinsic Series vinyl sliding patio doors
Trinsic Series vinyl sliding patio doors

Trinsic™ Series Patio Door

A contemporary vinyl patio door with a frame profile so narrow, you’ll hardly know it’s there.

Trinsic™ Series

A sleek and contemporary vinyl patio door.
Available in select markets only. 

Trinsic Series vinyl sliding patio doors
Trinsic Series vinyl windows
Contemporary Look. Narrow Frame.

The Trinsic Series vinyl patio door is our newest and most contemporary vinyl sliding door available. The narrow frame profile provides the maximum available viewable glass area to help you enjoy amazing outdoor views. The newly designed, sleek hardware features 90 degree angles for a very modern flair. It’s the perfect look for contemporary homes.

Benefits of Trinsic Series

  • Contemporary Frame
  • Durability & Energy Efficiency
  • Hardware
  • Signature Vinyl Formula
  • Full Lifetime Warranty
Trinsic Series vinyl sliding patio doors

Contemporary Frame

If you are looking for a vinyl patio door with a contemporary feeling, our new Trinsic Series is for you. The sleek style is the perfect way to create a modern look for your home and the maximum available viewable glass area can help highlight amazing views.

Durability & Energy Efficiency

We produce our own vinyl formula for the Trinsic Series patio door. The durable frames will not absorb moisture and do not require painting. Talk to your Milgard Certified dealer about ENERGY STAR® requirements in your area when you select one of our energy package options.

Trinsic Series vinyl sliding patio doors


Trinsic Series sliding patio doors some with a newly designed, squared off handle. This crisp, clean, contemporary look offers a very modern flair. Consider the optional upgrade for an even narrower handle that blends seamlessly into the frame.

Trinsic Series vinyl sliding patio doors

Signature Vinyl Formula

We’re proud of the signature vinyl formula we use across our vinyl line. We also extrude our own frame materials and fabricate them in house for a quality patio door that meets our high standards, and yours.

Full Lifetime Warranty

Full Lifetime Warranty

Trinsic Series patio doors come with a Full Lifetime Warranty. We will repair or replace any defect in materials or workmanship and will pay the costs of all parts and labor for as long as you own your home. This extends 10 years from the start date, if you sell your home. Glass Breakage is an optional upgrade.

Trinsic Series Operating Styles

  • Sliding
Trinsic Series vinyl sliding patio doors


Trinsic Series sliding vinyl patio doors are the perfect complement to Trinsic Series windows. They are designed with a narrow frame profile that can help expand your view. Choose from 2, 3 and 4 panel options.

Our experts are here to help!


Trinsic™ Series Patio Door

See All Reviews
Trinsic™ Series Patio Door is rated 4.3 out of 5 by 60.
Rated 4 out of 5 by from good windows and great warranty Just installed them in past week, too soon to give proper review, but think they are just fine as of today.
Date published: 2019-05-20
Rated 4 out of 5 by from GREAT LOOKS AND SOME GOOD FEATURES Ours were installed May 3rd 2019 save "MEASURING MISTAKES" ON Kitchen Window ... still not installed, and bathroom window was "CLEAR AND NOT FROSTED GLASS". MADDENING THE WAIT. Should have all been done by now. Can't complain about quality of windows or outstanding job by the installers, but sure would have liked it a lot better if care in measurements and bathroom had the frosted glass it was supposed to have. This has created and inconvenience for us that we have to live with until corrections are made. We know the correct sized kitchen window will be installed sometime in early June along with the frosted glass, but it doesn't make one feel any better having to wait and additional three, four or five weeks to complete the job. Otherwise we're happy with the product.
Date published: 2019-05-18
Rated 4 out of 5 by from Tan Color Trinsic Windows in Tan our beautiful, we love them.
Date published: 2019-05-16
Rated 5 out of 5 by from Very nice quality windows. The windows were installed in two days. The installers were knowledgeable & efficient. They even worked around my sick husband as not to disturb him.
Date published: 2019-05-16
Rated 1 out of 5 by from Disappointment The contractor installed these new windows, but the existing 7 Milgard windows are turning opaque.
Date published: 2019-05-15
Rated 1 out of 5 by from Garbage product If I could give Milgard negative stars, I would. I let my contractor and his rep talk me into Milgard to replace my windows and sliders and what a nightmare. The new Trinsic series casement window was produced with a defective part that caused the windows to bow. They were difficult to install because the frames were bowed, thus increasing my installation cost. All of the casement windows and several others have had to be replaced or repaired and over 4 months after placing the order, we're still trying to get fully functioning/not defective windows. Customer service has been persistently rude and made scheduling the repairs difficult. The windows themselves, while advertised as sleek and modern, are just chunky typical vinyl frames (they were so new we weren't able to see them in a showroom in our area, just the pictures online). At the time we purchased, Milgard was offering a rebate to homeowners. I filed for my rebate at the end of January, which was to take 8-10 weeks to arrive. We started calling Milgard after 12 weeks to inquire about our rebate. It took half a dozen phone calls before a response. 3 weeks ago, we were told they made an error and were expediting our rebate within 2 weeks. Half a dozen additional phone calls later, no response, no rebate, still have defective windows. Horrible experience, horrible company.
Date published: 2019-05-15
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