Aluminum Series Horizontal Slider

Horizontal Slider windows open with the sash sliding left or right.

Request a Brochure

  • Features
  • Colors
  • Hardware
  • Grids
  • Glass
  • Screens
  • Technical Resources

Milgard Aluminum Series windows can create a contemporary, yet timeless look in your home. The frame material is very strong, and offers:

  • Narrow sightlines to highlight expansive views
  • Sealed, mechanically-joined corners that stay square and true over time
  • Milgard SunCoat® Low E glass for energy efficiency
  • Thermally Improved Aluminum provides less heat/cold transfer, improving insulating ability (available in some areas)
  • The Milgard Full Lifetime Warranty for peace of mind


Preview Interior Frame in White
Preview Interior Frame in Clear Anodized
Preview Interior Frame in Bronze Anodized
Preview Exterior Frame in White
Preview Exterior Frame in Clear Anodized
Preview Exterior Frame in Bronze Anodized
Clear Anodized
Bronze Anodized
Clear Anodized
Bronze Anodized

White color option is not available on Thermally Improved aluminum

Preview Hardware item in Spring Action Lock
Spring Action Lock

Hardware finish is same as frame color.

Preview Grid item in Flat Grid
Flat Grid
Preview obscure Glass in Aquatex
Preview obscure Glass in Clear 42
Preview obscure Glass in Cross Reed
Preview obscure Glass in Delta Frost
Preview obscure Glass in Frosted Glue Chip
Preview obscure Glass in Glue Chip
Preview obscure Glass in Matelux
Preview obscure Glass in Narrow Reed
Preview obscure Glass in P516
Preview obscure Glass in Rain
Preview tinted Glass in Azurelite
Preview tinted Glass in Cardinal Low-E
Preview tinted Glass in Evergreen
Preview tinted Glass in Solar Bronze
Preview tinted Glass in Solar Gray
Clear 42
Cross Reed
Delta Frost
Frosted Glue Chip
Glue Chip
Narrow Reed
Cardinal Low-E
Solar Bronze
Solar Gray
Preview Screen item in Standard Mesh
Standard Mesh

Technical Resources

Aluminum Series Horizontal Slider Technical Resources

You can also search our full Technical Resource Library for more Product Series and Operating Styles.

Standard Aluminum Performance Ratings
File type(s):
Ratings Data
Standard Aluminum STC Ratings
File type(s):
Ratings Data
AAMA 2400-10 Installation Instructions
File type(s):
Installation Instructions
AAMA 2410-13 Installation Instructions
File type(s):
Installation Instructions
Installation Supplement
File type(s):
Installation Instructions
Stucco Tape Guidelines
File type(s):
Installation Instructions
Standard Aluminum Series 3-part Specifications
File type(s):
Technical Documents


Aluminum Series Horizontal Slider

See All Reviews
Aluminum Series Horizontal Slider is rated 3.9 out of 5 by 200.
Rated 5 out of 5 by from Mid Century Modern Replacement. We have a Mid Century Modern home and over a year ago replaced 2 sliding glass patio doors with Milgard Aluminum Series mill finish doors. They are still working fantastic and look perfect. One of the doors is the major traffic flow from the house to the outside so it gets used all the time. They are extremely sooth operating and lock securely. We love this product.
Date published: 2019-02-11
Rated 1 out of 5 by from Terrible windows! Poorly made! Been leaking since day they were installed. They replaced it and new ones also leaking! Will never use milgard and been advising friends and family to stay away from milgard!!
Date published: 2019-02-10
Rated 5 out of 5 by from MCM Alum Doors and Windows - Awesome Product! Remodeled a Mid Century home in the Hollywood Hills -- Replaced all the windows as well as 4 sliding doors with clear anodized XO and OXXO alum doors. LOVE them. They worked great. Anyone complaining below about functionality *may* have not hired the correct installer! Do NOT cheap out on window and door installation and WATCH your installers -- ask questions!! The quality of the door is totally negated if improperly installed. My ONLY issue with the door is that I would like a more modern low profile handle. The hoop handles are ok, but a more sleek Fleetwood style handle would be ++++. At least they did away with those lame wood handles on clear anodized!!!! Thank you Milgard. I'll be remodeling a new house soon and gonna get them in bronze (black) next.
Date published: 2019-02-09
Rated 5 out of 5 by from Custom Aluminum Awning Widows I ordered two custom aluminum awning windows from Priority Door and Window Products in San Diego in mid-December, 2018. Within about 5 weeks, Milgard delivered the windows. However, one of the hinges was missing a screw for the awning window bracket, and the windows weren't aligned properly. But, within two days of installation, Milgard was on site with their field tech support team to install the missing screw and align the windows properly. Overall, my experience with Milgard was excellent. While they said it would be at least a week before they could make the repair and adjustments, they responded in a timely and positive fashion to rectify my situation. Certainly, this is a superb reflection of the kind of company Milgard is -- customer service oriented and the spirt and intention to "make things right." Regarding the product, the windows are high quality and great value in every respect. I would highly recommend Milgard products.
Date published: 2019-01-29
Rated 3 out of 5 by from Manufacturer errors Orignally purchased 4 custom windows. 2 windows had to be returned due to improper packaging/shipping, frames bent. The 2 windows that were rebuilt installed yesterday. 1 window improperly finished, glazing bead not set correctly between frame and glass pane. Glass broke
Date published: 2019-01-11
Rated 5 out of 5 by from Remodel Window Bought Milgard Aluminum window as part of recent kitchen/bathroom remodel. Window matches, similar windows installed in 2015. Though windows were 4 times less costly in 2015. Very pleased with look and quality.
Date published: 2019-01-10
Rated 5 out of 5 by from Great Customer Service I bought my windows a number of years ago but a few became difficult for me to open and close. I contacted Milgard and from that first conversation I knew I was in good hands. Efficient, professional and kowledgeable customer reps. Serviceman came and identified the problem. An appointment was scheduled to fix the problem. Today, serviceman came on time, when scheduled, and fixed the windows without charge because of their amazing guarantee.
Date published: 2019-01-04
Rated 1 out of 5 by from Patio doors leak and do not close properly We bought a few windows and three sliding patio doors, we had them installed by the recommended installer by the milgard reseller, one of the doors could not be locked due to the door having the wrong doors on a frame meant to open on the opposite side, Milgard kept sending the wrong hardware and it is 3 moths since they installed and the frame has yet to be replaced. On our huge 4 panel sliding door it does not close properly so when it rains there is water on the inside of the house, the rubber seals between the aluminum and the glass is also not seated properly, and the door is extremely hard to open on one side and the other side is fairly hard opening, not opening as nicely as the doors they had in the showroom at Tri Supply in Austin. I hope the service will and warranty will take care of these issues, I guess time will tell
Date published: 2019-01-01
Rated 5 out of 5 by from What a difference!!! I just bought these windows and right away we can tell the difference, it used to be so cold in our bathroom, when we just had the window installed, now we can feel the heat, and the same goes for the kitchen window...So glad I purchased these windows.
Date published: 2018-12-19
Rated 5 out of 5 by from Thermal break aluminum window frames Much better quality than the vinyl windows. The black frame Windows look better against the natural wood wraps. No warping problems like the vinyl. The window Glides nice year-round no matter what time of the year you have to open or close the window it doesn't feel stiff like the vinyl windows do. Cuts the outside noise down way better than the vinyls do. The thermal break prevents sweating. I've completely switched over to the thermal break aluminum windows. As far as I'm concerned I will never go back to the cheap vinyl frames.
Date published: 2018-12-07
Rated 5 out of 5 by from Excellent construction quality I have had Milgard windows since construction. I have been gradually replacing the original windows for double pane units. They are very well made; and, the company always takes care of any complaint.
Date published: 2018-11-26
Rated 4 out of 5 by from good quality window I ordered several windows of the same size and they were consistent. 5/5 there. Most had some aluminum shavings in the wells of the aluminum extrusions. I will definitely ding Milgard for the phone and web support. NOWHERE on the website are there any installation instructions for BLOCK FRAME aluminum windows. the "Chat" on the website was worthless, and the phone support was worse. The woman I spoke with had the perky voice and all, but almost no knowledge of the product. When she finally understood the issue, she was similarly unable to help, referring me to the trade association for aluminum windows! ha! When I pointed out this absurdity, she became snippy and hung up on me. Waste of my time.
Date published: 2018-11-23
Rated 5 out of 5 by from Love the warranty on Milgard windows They are the only windows I would put on my house. I have double paned windows and the one time moisture collected between the panes Milgard took care of the problem at no cost to me.
Date published: 2018-11-19
Rated 2 out of 5 by from Poor Design Ordered bronze, almost black color aluminum. Screens are shimmed with white plastic, very obvious. Also had to replace two out of three windows due to seals breaking and water trapped between double glass, lifetime warranty.
Date published: 2018-11-03
Rated 4 out of 5 by from Ok There's some rough spots on the metal cut that should have been sand down if you are not careful you can get cut
Date published: 2018-10-31
Rated 3 out of 5 by from Difficult to open The insulation strip is so stiff it is almost impossible to open without a crowbar
Date published: 2018-10-30
Rated 1 out of 5 by from Screens were sub-standard We purchased Thermal Break Aluminum Windows as replacements. The screens that came with them were so flimsy and poorly designed that they were unusable. When our local dealer complained to Milgard, he was brushed off. The dealer had to fabricate new screens in his shop, at his cost. Milgard came nowhere near living up to its reputation.
Date published: 2018-10-18
Rated 5 out of 5 by from Replacement windows We replaced all of our windows with Milgard 14 years ago. They were gray with white grids in double panes. We have been satisfied with them in sunny California. About a year ago shading started appearing around the grids. We contacted Milgard and today Leo and Nick arrived to replace those windows that were affected. Great men!! They were friendly, efficient, and even replaced a handle while they were here. No wasted time, in and out quickly. All under the lifetime guarantee. Thank you, Milgard!
Date published: 2018-10-11
Rated 1 out of 5 by from Terrible manufactring I bought two Aluminum Sliding windows. One came with damaged frame and the other came with wrong sliding door. They were both ordered complete assembled doors but they came unassembled. The rubber gasket on the fixed panel was jammed inside the stile and there were screw holes on the fixed panel. The wheels were on the wrong end of the panel and the lock strike is installed in reverse direction. The whole this was a mess and when I called Milgard I was told Home Depot was suppose to put the door together. I called Home Depot and they say they never put the doors together. I will dispute my credit card charges on one of the doors and let Milgard and Home Depot fight it. I still need Milgard to come and fix the Lock and take care of the squeeking sound that come from the slider when opening and closing. I had to pay $500 extra to my contractor to put the door together and fix the rubber gasket. By the way I sent a Service Request four days ago so far no one called.
Date published: 2018-09-29
Rated 5 out of 5 by from In the hot Arizona sun these windows are excellent These windows where the choice of our builder and we are happy for his choices. There was a warranty item right after we moved in and Milgard rep come out and took care of it with in a couple of days from us telling our builder.
Date published: 2018-09-20
Rated 5 out of 5 by from clear and clean Just installed and we are pleased with looks and insatllation
Date published: 2018-08-26
Rated 5 out of 5 by from Excellent quality at a fair price As a custom builder I really like the windows. They are well made and backed with great service
Date published: 2018-08-25
Rated 3 out of 5 by from Good windows, poor customer service We have our windows and sliding glass door installed in April, 2018. We ordered aluminum windows in a dark bronze color replacing nearly 60 year old builders grade aluminum windows. The price is good competitive to the market. Pros. We like the dark bronze finish, the construction on both the windows and door seem solid and long lasting (will outlive us, that's for sure) drafts we had from our home's original widows are gone and the noise reduction is noticeable. It's very quite in our house. Cons. The order was late and that slowed the remodel considerably. When they arrived, two of windows were incorrectly made and most of the rest were damaged in transit. Getting the order remade correctly and shipped without damage set our project even further back. Milgard refused to offer any refund for their problems. Also, they shipped the wrong kind of screws for the sliding glass door, round head screws instead of flat head and that is causing little dings in the door. There were a few little dings and scratches, but a we just decided to install them and live with the blemishes. Like the windows and door, not so happy with the Milgard's attention to details and service. A little touch up paint promised by our contractor to be provided by Milgard would be nice Would recommend with a note to pay attention to what is delivered.
Date published: 2018-08-20
Rated 3 out of 5 by from Broken window during installation Broken by installer while trying to adjust slider.
Date published: 2018-07-25
Rated 1 out of 5 by from Horrible Warranty Our glass shattered with no impact and this series does not include a warranty for the glass. To replace the glass alone is $950.00 and Milgard will not stand behind their product. I will never use this brand again.
Date published: 2018-07-17
Rated 4 out of 5 by from great windows Have installed multiple windows in our home over the years- if we have any problem Milgard comes out and takes care of them. great warranty- and a very nice product
Date published: 2018-07-09
Rated 5 out of 5 by from FANTASTIC DOOR I just bought this and it slides well, and is with no stucco damage. It muffles sound well and makes the house a bit quieter.
Date published: 2018-06-19
Rated 5 out of 5 by from Very impressed with the quality and appearance Installation just completed and my tenants are pleased with the new windows. They live on a busy street and traffic noise is reduced in the apartment.
Date published: 2018-06-07
Rated 4 out of 5 by from Clean Design We just had our windows put in today. We went with the thermal break aluminum as I was not convinced the vinyl in our heat would wear well. This is an older ranch and the style fits with the architecture. We are anxious to see how temperature is effected and if there is a notable difference in not hearing the outside noise. We wanted American made. My only negative would be the corners where the vertical,and horizontal frame pieces meet. Not bad, but not perfect.
Date published: 2018-05-31
Rated 2 out of 5 by from Nightmare entire house replacement It seems we paid 1st quality prices for 2nd & 3rd quality products. Entire house redo. There a few windows that did turn out beautiful, I think, as I'm exhausted inspecting and just don't want the stress of $$$$$ spent for defective/damaged goods that are special order and take weeks to receive and install. Along with either having the defective item installed (it yours!), getting ply board to cover the hole, or putting old window back in. I've been told the warranty is "wonderful", fingers crossed. One set doors. Lock will not work routinely and glass is scratched, it's a nightmare trying to lock. 2nd set. Glass was severely scratched for over a foot & we wouldn't allow install. Top solid pane on top of roof has multiple cracks and was installed w/o consent by installer. Told of defect after install (this is on both Milgard and installer) 2 windows the frames are scratched. Bay window one of the windows will not open. Door with built in shades, the shade panel is set off to one side between the glass so the door looks lopsided. Multiple screens bent, dinged, cut. Miscellaneous scratches on several "NEW" windows.
Date published: 2018-05-31
  • y_2019, m_2, d_22, h_1
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.11
  • cp_2, bvpage2n
  • co_hasreviews, tv_0, tr_200
  • loc_en_US, sid_prod.standard_horizontal-slider_windows, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_milgard
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getContent, 185.05ms