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 4.4 out of 5 by 36.
Rated 5 out of 5 by from ATTRACTIVE DESIGN & INSULATED TEMP MANAGMENT We purchased our Milgard Trinsic windows Feb. 8, 2019 from Andy's Glass & Window Co. The windows have been manufactured at the Milgard Factory in California and began installation on March 12, 2019. We immediately felt a reduction of solar heating as a result of the E Coating and inert gas captured between the panes. Our windows are so well designed and functional. We are Happy.
Date published: 2019-03-13
Rated 3 out of 5 by from took 2 months from the date of order for install The contemporary style window looks great and insulates sound and waether. Very happy with the product but something is wrong with the supply chain when it takes 2 months from date of the order from my installer.
Date published: 2019-03-09
Rated 5 out of 5 by from Impressed with these windows! Installed last week and absolutely love them. I was skeptical about how much sound they would keep out, as the rep said, and am so impressed with that characteristic. They look great too.
Date published: 2019-03-05
Rated 5 out of 5 by from Great for a rental property I bought this to install in my rental property from the old single pane windows and I know they will be more energy efficient and more quiet. Love the design.
Date published: 2019-03-01
Rated 4 out of 5 by from aaaa vinyl seems a little stiffer than previous window...
Date published: 2019-02-28
Rated 5 out of 5 by from Great picture window I am so happy with my new picture windows! They definitely provide a magnificent view now!
Date published: 2019-02-26
Rated 5 out of 5 by from So far, so good! We have had these for about a week and so far they are terrific. We have an older home and the Trinsic Series windows look great with the look of the house. I love the smooth open and close operation of these windows.
Date published: 2019-02-25
Rated 5 out of 5 by from Great Install Team! From start to finish...they were in and out in no time, installed my new vinyl windows that look fabulous. Kept the area clean and didn't have constantly check up on them.
Date published: 2019-02-18
Rated 5 out of 5 by from Great Clean Look Exactly what we ordered. Keeps Sound and Weather out. Glad we went with Milgard!!!
Date published: 2019-02-17
Rated 5 out of 5 by from Great product I am familiar with the windows as the manufacturing facility is nearby. I feel they are very attractive and of very good quality.
Date published: 2019-02-11
Rated 4 out of 5 by from Nice addition to our home! Love the windows! Quality controll could be improved as our screen came in damaged and there are some flaws in the glass panels. Overall they are what we were thinking and a nice addition to our home.
Date published: 2019-02-09
Date published: 2019-02-07
Rated 1 out of 5 by from Poor quality windows The windows began to fail in our home at 10 years. The putty between the window panes is melting, running down between the panes and looks terrible. Per Milgard, since I am not the original owner, and it is outside of the limited warranty, I have to pay for all repairs on these windows. Be careful purchasing these windows!!
Date published: 2019-02-01
Rated 5 out of 5 by from Great looking windows The window quality is what I'd expected. Purchasing through Lowe's sucked. I ordered on October 8th, but it took until 1-31 to get installed due to Lowe's screw-ups.
Date published: 2019-01-31
Rated 2 out of 5 by from Smooth Operation But... Six of our 15 new construction windows have had issues. We are on our third service call. Issues range from gaps in vinyl framing, short cuts on mull and glazing blobs between panes.
Date published: 2019-01-23
Rated 4 out of 5 by from Excellent selection Great service , great confused on rebates but I guess I will have to wait and see if the check is in the mail
Date published: 2019-01-23
Rated 5 out of 5 by from Quality Product This is a quality window at a fair price.Operation is very smooth.
Date published: 2019-01-21
Rated 5 out of 5 by from Great windows and doors I've replaced all my doors with Milgard doors and I'm in the process of replacing all my windows with Milgard windows. The doors and slider are more solid than anything else I've shopped and I'm very happy with the product. I'm staying with Milgard for every house I buy.
Date published: 2019-01-16
Rated 5 out of 5 by from Beautiful Windows went in yesterday, my views were already great and now the just look better! I almost don't want to put back up our blinds. They open and close so nice and love the locks. We can already tell the difference with noise and the heater doesn't turn in as much!! Love them
Date published: 2019-01-11
Rated 5 out of 5 by from Great sliding glass door This door is so great. We live in a very cold climate, in the mountain of Colorado, and you can't even feel the cold when standing next to this door, even in 20 below zero weather!! Looks great, slides easy.
Date published: 2019-01-10
Rated 5 out of 5 by from Beautiful Patio Door Great looking,works great,Beautiful installation.You should get one.
Date published: 2018-12-28
Rated 5 out of 5 by from wonderful product and great installers Just had windows and patio door installed and am amazed at how beautiful they are and how quickly they were installed
Date published: 2018-12-25
Rated 4 out of 5 by from Great Window I bought Milgard because I know others that have it and I liked the look of the window. I was at a home show and they showed us how the window did not allow the heat from the lamp affect the temperature on the other side of the window. One room in my house faces the West and in the summer it was an oven from the direct sun and in the winter it is a freezer. This is why we bought a new window for that room. The room now has better temperature control but I wished they would have made the window closer to the size of the opening or old one. There is a 2 inch or so gap that was filled in because of the new window. Was this because there was an arch at the top of the window or is this how they normally do it? I don't know.
Date published: 2018-12-23
Rated 5 out of 5 by from super easy to open love the look of the product and the ease of opening the windows
Date published: 2018-12-17
Rated 5 out of 5 by from Great features! 2nd time with Milgard windows, very impressive and looks great
Date published: 2018-12-15
Rated 5 out of 5 by from Look good! Function smoothly! My Milgard Trinsic Series windows were just installed. It took me many years to replace my old windows. I wish I'd done this sooner. The new windows look so good and function so well! I particularly love the Pureview Mes screens. They almost disappear!
Date published: 2018-12-13
Rated 5 out of 5 by from Just replaced old window glass I called Milgard about our in window glass that went foggy between the glass panels. I was worried they couldn't replace it because so much time had lapsed. But the service department found our exact window and ordered the replacement form the original specs. Marco came today to replace the glass. It took 15 minutes and he was very knowledgeable and helpful. The new window is clear and was a perfect fit. Milgard is wise to make a product that last for a long time (10 years) and is easy to replace faulty parts.
Date published: 2018-11-21
Rated 1 out of 5 by from Milgard Trinsic Poor service 18 or 21 items received on 10/26/18 2 Weeks later stilling waiting for 3 back ordered windows. Milgard cannot even provide a delivery date. Screens were shipped with windows and show signs of poor handling at the factory 1 Awning will not close and lock One casement will need Milgard service to align properly.
Date published: 2018-11-08
Rated 5 out of 5 by from Guaranteed for life replacement We have had Milgard double pane final windows for 17 years and have been very pleased not only with the windows itself but with the guarantee for life policy. One of our windows developed a leak causing rust formation on the inner window. Milgard came out and replace it on time and very efficiently free of charge. Thank you Milgard!
Date published: 2018-10-05
Rated 5 out of 5 by from beautiful with sleek look Look so great! Narrow casement so lots of glass! lock is built into frame so looks very sleek and easy to see if window is locked or not.
Date published: 2018-09-21
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