Sliding Glass Door Locks

Sliding glass door locks such as the steel mortise style locks shown on this page are used in wood, vinyl and aluminum patio doors. They are often used in higher end doors because steel mortise locks are more secure than the cast aluminum alloy versions used in many patio doors.

The important thing with mortised locks, and any sliding glass door lock really, is getting the right description by taking dimensions or, even better by taking a digital photograph to use in finding the right lock.

There are quite a lot of steel mortise locks and it is often hard to tell the differences between one and another. The mounting hole locations, the direction of swing of the hasp and the size of the hasp are all important details to know.

Steel Mortise Locks

If the lock you have is built right into the frame of the door, you most likely have a mortised lock. The aluminum door varieties usually sit in a recess cut into the patio door frame. Wooden patio doors have steel locks mortised into a pocket in the door.

On some sliding glass door locks the door handles have long screws that go right through the steel mortised lock and there is usually a actuating lever that slides into a rectangular hole in the lock.

Usually you buy just the mortised steel lock assembly that fits within the door and reuse the old handles and actuating lever. There are small parts with these locks so do not lose any while taking it apart!

There are many different kinds of steel mortised locks but there are a few common types. Heres information you need to have to source a new mortise lock.

  1. Width of the lock.
  2. End Face Plate type (round or square).
  3. Screw Hole Size The distance between the centers of the mounting screw.
  4. Name of the Manufacturer of the door to which a particular lock is unique.
  5. Position of the keyway, more information on that below.

If you do not have enough information, take a picture of the lock with your digital camera, this can be really helpful when trying to communicate which kind of lock you are looking for.

Sliding glass door locks video

On a mortise latch there is usually a knob mounted in the handle of the patio panel with a long rectangular key. This rectangular key fits in the keyway indicated on these pictures. When you are replacing a mortise latch, you have to take note of the position of the keyway. Some are vertical, while others are angled at 45 degrees. <br><br>Pick the wrong type and the sliding glass door locks will not operate properly.

What if your lock is no longer made ?

One of the problems you may run into is that the lock your patio door uses is no longer made. In those situations there are products that can help. The do it yourself surface mount lock by Cal-Tech shown below offers excellent security and can be installed on just about any sliding patio door.

Double Bolt Patio Door Lock by Cal-Tech

Rectangular Cutout Locks

patio door mortise lock E-2011

E2011 is no longer available. It has no latch adjustment screw and actually has a vertical keyway, not the 45 degree shown in the picture. (sorry old catalogs are not always accurate !) E2012 has the same overall dimensions and shape and can be used to replace it.

patio door mortise lock E-2118E-2118

These locks are identical except for the position of the keyway. One has a vertical keyway, one has the keyway at 45 degrees. The last version has the keyway at 22-1/2 degrees. You will often find these on patio doors made by Adams Rite and Arcadia as well as a wide variety of other manufacturers.

The sliding glass door locks above all require different sizes of rectangular cutout for the hasp in the patio panel. The mounting screws are all placed above and below the cutout.

Oval Shaped Cutout Locks

patio door mortise lock E-2013E2013
patio door mortise lock E-2014E2014
E2014 sliding patio door lockE2014 LOCK MOUNTED IN VINYL OR PVC DOOR

This lock made for an oval shaped cutout is probably the most popular and widely used of all mortise locks for patio doors. These locks are identical except for the position of the keyway. one has a vertical keyway and the other has the keyway at 45 degrees.

Mortise lock Installation Video

Recessed mortise lock assemblies


E2126 requires a 3/4" wide x 3-7/16" oval cutout in the patio door and E2079 requires a 5/8" x 3-3/8" oval cutout. 

As well, both of these sliding glass door locks are assemblies consisting of three parts. An E2105 mortise lock, a recessed housing or escutcheon plate and a lock hasp. Usually its the E2105 lock that breaks so you might not need to buy the whole sliding glass door locks assembly, just the lock.

The recessed housing is often used to mount these locks in wooden or vinyl patio doors as the housing allows bigger screws to be used.


The sliding glass door locks shown above require an different sized oval shaped cutouts made in the patio frame so that the the latch hasp sticks through. In these locks, the hasp does not stick out from the panel when in the locked position, the hasp is recessed into the patio frame

Locks E2469 and E2487 are assemblies consisting of three parts. An E2014 mortise latch, An oval shaped housing and a separate hasp. Usually, its only the E2014 mortise latch part that breaks, so you might not need the whole assembly.

Long flange style latch assemblies

patio-door-mortise-locks-E2164 or 1148-8E2164

These sliding glass door locks are also assemblies consisting of an E2014 lock and a flange or escutcheon plate. The escutcheon plate is there to make it easy to install the latch in wooden doors. The plate has holes for wood screws allowing the whole assembly to be screwed into a mortise cut in one of the vertical stiles.

The flange or plate usually does not break and you can easily change out the E2014 lock just by removing the 2 small mounting screws if you dont want to buy the whole assembly.

Top and Bottom tab styles

These sliding glass panel locks are different in that the actuator lever and the lock are combined in one. All the other locks mentioned on this page have a seperate lever that gets inserted through the keyway.


The sliding glass panel locks above both share the same mounting screws that hold the handles together on both sides of the patio panel. The E2105 lock is used in the E2126 and E2079 assemblies on this page.

Sliding Bolt Style


Locks such as the E2025 were used on Arcadia 700 and 800 series patio doors made during the the 1970's and 1980's. They are a little different from other mortise locks on this page because the hook is mounted stationary on the side jamb of the door.

When the door is closed the whole mortise lock slides down over the hook. Sort of a "dont raise the bridge - lower the river approach"!

The pictures above are by no means all the mortise locks used in patio doors, these are just the more popular ones. 

Questions and Answers
about mortise locks

This is a sampling of some of the questions I get about mortise lock installation and repair.

Which patio panel
mortise lock is correct

by Eric
(Wheaton, IL)

How do I know if I need to the 2014 or 2013 replacement lock for my patio panel?

You need to remove the handleset to see how the thumb lever fits in the lock.

If it fits in with the shaft at a 45 degree angle, the lock is a 2014

If it fits in vertically it is a 2013

How do you remove a patio panel lock

by Tony S
(Orlando, FL)

GREAT web site and source of information. On your home page, you have a picture (lock #5) on the right side. I'm attempting to replace one for a client- can't seem to get the old one out.

I've removed the screws and tried pushing the lock into the door rail hoping to get it to slide up OR down where the screw mounting holes would get passed the mortise opening and allow me to remove it- it doesn't budge.

Found a new lock at a local glass company, but they couldn't give me any hints on how to get the old one out- must I remove the frame from the glass? Can if I have to, but would rather not!! Any advice would be appreciated.

Thanks, again.

Hi Tony, happy to help in any way I can. Any chance that you could take some digital pictures of the lock and email them to me. Once I see what we are dealing with I might be able to help.

sliding glass door locks

by Brian
(Glendale Heights, IL )


We had a locksmith come and look at our sliding padio door lock. He quoted me $189.00 to order the lock and replace it. I thought that was insane and told him I'd find a way to fix it myself. I found your website and it looks like you might have the lock I need. Can you identify what replacement lock this would be? Thanks!

Hi Brian;

Thanks for the question. Your lock is most likely the E2014 or the E2013 shown on my sliding door lock page.

Usually its the E2014 but the only way to be absolutely sure is to loosen the two screws that hold the handle on.

You have to remove the handles to see how the small actuator lever enters the latch. On the E2014 the actuator lever is at an angle of 45 degrees.

In patio door handles that have the E2013 the actuator lever is bent or twisted so that it enters the side of the lock vertical.

The E2014 is much more common but you really cant be sure unless you take the handle off and look at it.

If you are still not clear just upload a picture of the latch once you have the handle off and I will help identify it from that.

Looking for Arcadia
sliding glass door latch

by Katharine W.
(Scottsdale AZ)

I have a sliding front entry door to my condo that is really old made by Arcadia. The thumb latch broke and can't be fixed because it is made of pot metal, I have been trying to locate either that piece or the entire replacement latch unit
I have attached a picture, do you have anything like this? it is really heavy, maybe made of brass and also it has mounting holes that are 3 1/4"

Hi Kathy;

It took a while for me to dig this one up, sorry for the delay. I posted a picture from the old catalog which appears to be very close to what you have.

Take a look and see if you agree, and let me know if the 5-1/2" dimension makes sense. It looks like its designed to have both 3-1/4 and 5-1/2" mounting holes. If all looks good I will see if its possible to get one of these handles for you.

Patio Door latch not engaging

by Dee Gonzalez

The latch on my patio door is not engaging the mount to latch the door. (see brace pic) The latch on the door is functioning; however it doesn't seem to be catching the mount, and when it is in it's locked position, one can easily pull the door and it opens. I'm not sure if it is a door issue or a latch issue. I do not want to buy a new patio door if this is a simple fix. Any help or advise is greatly appreciated.

Thank you.

Hi Dee;

Most of the time, this happens when the patio door is not 100 percent aligned with the side jamb or door frame. Open the sliding door just one inch so that light just starts to come through.

Sight up and down the crack and see if the door looks parallel to the side frame. You might need to adjust the rollers on the bottom left or the right to get it perfectly square.

Once you do that the latch may start working. Regardless the door needs to be square before the latch is adjusted.

With the door perfectly square, take a piece of masking tape and align it at the top of the opening in the latch keeper mounted on the side jamb. Wrap the tape around the inside so you can see the level of the top edge even when the door is closed.

Now almost close the door and extend the hasp and see how far up or down it is from the bottom edge of the masking tape. If the bottom of the latch hasp aligns thats great but you might need to adjust the screw just above the hasp to get it to move up or down.

The last thing to try is to install a couple of washers behind the latch keeper on the side jamb. 1/8 inch should be fine.

One of these things should get that latch working again. If not, try a new mortise latch.

Broken Patio Slider Latches

by Marc W
(Orlando Fl)


Can you tell me which mechanism I should be ordering.
I have attached a couple pictures that should help?
Marc W

Hi Mark;

Thanks for the pictures. Your latch is most likely my E2014 but to be 100 per cent sure you would need to remove the 2 screws that hold the handle on.

That would allow you to see if the slot in the latch that the actuator lever fits into is 45 degrees to the vertical.

If its not, and the slot is horizontal, then the lock is an E2013. The slot position is the only difference between the two locks.

The latch will not fall out if you remove the handle. The latch itself is held on by the two screws above and below the latch.

The actuator lever on the handle is usually a small metal strip bent at 90 degrees so it goes into the slot on the side of the latch.

How do i get my patio door
to close tightly ?

The door handle on my sliding glass patio slider broke so I needed to replace it. I did not replace the parts recessed in the frame, just the indoor handle and the outdoor pull.

The latch box is the rectangular cut-out type. Since doing so, the door won't stay latched. What can I do to adjust the the tongue of the latch so it catches the latch hasp tightly?

One thing that might be causing a problem is the thickness of the handle. The patio door usually slides into the side jamb 1/2" to 3/4" when closed.

Is the new handle closer to the edge than the old one was ? Is it preventing the door from closing all the way into the jamb ?

That would make the sliding panel further away from the hasp and might explain why it does not close.

You can experiment by putting washers or a shim behind the hasp on the jamb and seeing if it locks again.

Another thing to check is to make sure the sliding panel is perfectly parallel with the jamb by adjusting the rollers.

Over time the rollers wear and the door gets out of alignment. You often find yourself having to pull the door over that last 1/4" to get it to lock

If the panel is not parallel, the top or the bottom will fully close but there will still be space at the hasp and prevent the lock from engaging in the hasp.

1970's acadia sliding glass
panel lock broke

Jay A.,

Frye Island, Maine, USA

Hello, can you please help us identify the correct latch to order?

The manufacturer does not sell the latch. The handle broke off.

Acadia Door series 600
The lock length is : 5 inches
Our screen is also ripped.

Thank you so very much.

Have A Great Story About This Topic?

Do you have a great story about this? Share it!

[ ? ]

Upload 1-4 Pictures or Graphics (optional)[ ? ]


Click here to upload more images (optional)

Author Information (optional)

To receive credit as the author, enter your information below.

(first or full name)

(e.g., City, State, Country)

Submit Your Contribution

  •  submission guidelines.

(You can preview and edit on the next page)

What Other Visitors Have Said

Click below to see contributions from other visitors to this page...

Nite Lock Replacement 
Selling our townhouse and the buyer is asking us to fix the Nite Lock. I never even noticed it was missing as we never used it and the actual lock still …

Replace patio door handle 
Hi, I need your expertise. My patio door latch does not stay in the "locked"position. This is the third time in 20 years I've had to replace the handle. …

Can't find replacement lock. 
I have the original sliding door lock from about 1980. The 2 screws measure about 2 1/2 inches. Would the E2080 be the one to replace the lock? Thanks, …

Mortise lock stuck in locked position 
The door is stuck in the lock position. Removed the handle and tried using a flat had screw driver to unlock but does not budge. Any help on how to unlock …

Cant get the latch out of my sliding door 
Whatever controls the tension on the latch on our slidind door broke. We tried to get the lock mechanism out but it is recessed behind the door panel. …

Patio door handle Prime Line C1084  
I spent a lot of the time, but not able to find the C1084 lock or any other, with the space between the centers of holes 2-11/16 inch for sliding glass …

Guardian door mortise lock set 
Can't find anything to match this sizing

Sliding door latch handle lock need advice 
Hi following are the measurements of the sliding door latch handle which needs replacing with lockable mechanism 1) latch lock depth approx 3.5 cm …

The thumb lock broke off... 
Hello, I have a sliding door to our patio that the thumb lock (not keyed) broke off. It's part of the cast of the lock and I haven't been able to find …

UK Aluminium Sliding Door problem 
I really need some help to find a locking mechanism to make these two sliding doors secure.

Mortise style sliding door lock 
Hi I just moved into a new house and the lock on my sliding door has broken. Can you help me find the correct one. I don't know any info about the door, …

Mobile home Vanguard Patio Door handle 
HI!! — It’s been over a year since the Sliding Door ( on a Mobile Home). Has a Broken Lock!!! I have contacted the contractor who added the room on—-that …

How do I remove the Lock 
What do I have to do to get to the screws on this mortise Lock?

Kolbe Latitude Patio Door Lock 
I have a Kolbe Latitude patio door. While trying to get the lock out, it fell down inside. How can I get it out, so I can bring it to the hardware store.I …

Changing sliding door handle  
Hi. Is it possible to change a regular locking sliding door handle with a turn key lock without having to replace the sliding door glass?

Can't find manufacturer of door 
So I cannot find the manufaturer to order the right lock, can you look at my pics and see what type of lock I need and based on handle do you know what …

E2030 Lock is Discontinued Everywhere! 
The handle on my E2030 broke, I have identified this on your website and two other websites that list it as discontinued: …

Patio Door Wont Lock 
This is a really dumb question... Here goes! So I have this patio door with an aluminum slider it only has one handle and I'm not sure which way the handle …

Mortise Lock with a "Gap"? 
The mortise lock on my sliding glass door broke and I went to replace it with an E 2014 lock. However, when I tried to replace it, I found that there is …

Broken Sliding Glass Door Handle 
Hello, I am looking for a handle for my sliding glass door and in my search, I came across your website. The lever in the handle that moves the …

Patio door lock Hi there I am looking for a replacement look as described in the above link from your website. …

Finding a replacement sliding door handle! 
Hi, my two wonderful kids decided to have a push and pull contest with the door handles and the inside handle gave up first! I've tried the usual placed …

Mortise Lock Broken and Door is Locked - Miracle needed! 
Hi, My son came home from school early to find the house locked. He tried to pull up on the lever handle of our sliding glass door while it was locked …

Hard to open Aluminum Flush Style #PatioDoor #Locks terrible for #Arthritis 
Hi I have two aluminum/glass sliding doors that have the flush 6 5/8 locks (the ones you slide the lock up or down and at bottom they have a pin that …

Click here to write your own.

need help with replacement mortice lock for Milgard patio door 
I need to see were I can purchase a replacement mortise lock for a Milgard patio door............

#Patio door handle has no visible screws 
The lock is broken and I can't open te door. Problem is there are no screws on the side to remove the handle. It appears the Handel screws are located …

Mortise Lock Fell Down! 
I was trying to remove my mortise lock to replace it and was unfamiliar with the inside workings. Needless to say, when I removed the door handle, the …

I need a replacement handle for a Window Master sliding glass door with a reverse clamp. The distance between screw holes on the current handle is 5 7/8" …

Mortise Lock Size 
I'm having a hard time finding a replacement mortise lock for my sliding glass door. The door is old (60's installation most likely) and my main problem …

1960's Era Sliding Door Locks 
I need to re-key or replace 4 1960 era locks/handledevices. Photo's are attached.They have held up remarkable well but have now reached the end of their …

Oops! Should have left the screws in! 
Last weekend I decided to take 10 minutes and remove the door closer assembly on my sliding glass patio door, tighten the two wood screws holding my wooden …

Replacement patio door lock 
Hi I can't find a replacement lock on patio door. Nothing at lumber stores are right size for the mortise lock. Can you help me. Do you sell or can you …

E2014 Adjustment screw not working Not rated yet
I just replaced my old mortice lock on my patio door with a new E2014 and it fits nicely. However the adjustment screw does not extend or retract the …

David Not rated yet
I had a burglary at my summer home and the thieves pried out the lock and handle mechanism of the sliding patio door. They must have taken it with them …

Australian Patio Door Handle Puzzle Not rated yet
Hello, The latch on my glass sliding door has come loose for the second time. Our house is some 16months old and the builder says it has run out of the …

#Patiodoor locked cant get out Not rated yet
Hi...I have vinyl glass sliding door. We bought the house used, and the latch has always been a bit wonky, but with a little jimmying of the door (pushing …

How do you get the knob off ? Not rated yet
I am trying to replacing the lock on our sliding door. I removed the screws but the knob is attached to the mechanism (latch). When I try to slide out …

Mortise lock has no visible screws Not rated yet
Hi, I have a sliding glass door in a rental built in 1980. I took the handle off but couldn't see any way to actually remove the lock mechanism. It seemed …

Mortise style lock needed for sliding door Not rated yet
I recently bought my first house that has a sliding glass door on it. Originally the door had a mortise style lock. The old owners must have broken something …

#Patio #Door so secure even I cant get in Not rated yet
My sliding door lock would not engage when I used the lever on the handle assembly. I opened the door and loosened the mortised plate. The plate slid …

The Vanishing #PatioDoor Lock ! Not rated yet
My Son In Law has a condo with a heavy white vinyl coated sliding glass patio door. The mortise lock for the door is missing and the original lock and …

Need help identifying a lock Not rated yet
Renters broke the mortise lock on my sliding glass door. I do not know the brand of the door or the lock. I tried the Prime-line E-2014, but it was too …

Source for Arcadia 700 Series Mortise Lock Not rated yet
Hi Need help on getting replacement for Arcadia 700 series Mortise Lock. You show it on your site as E2025. Thanks jim Hi Jim I have only …

Please help me fix my sons #patiodoor Not rated yet
My son just moved into this house that has a patio sliding door that needs repaired. there are no marks anywhere on the door, but i do have pictures.The …

3 Point Patio Door Locks Not rated yet
Please try to help me. Approximately 15 years ago, I had all new doors and windows installed. They're double glass (one stationary) doors. The door …

Need help with recessed #patio #door lock Not rated yet
Is this an E-2487 lock! It measures the same as mine and its recessed! If so, I need to order this lock ASAP Great web site! Thank you so much! …

Lever broke off now how do you get broken screw out Not rated yet
Hi, I was locking my patio door when lever fell off and the screw was sheared in half. How do I retrieve the other part of the screw stil in the lever …

Glass sliding #door #locks all open no matter what key Not rated yet

more info: old sliding glass door lock Not rated yet
If I could find the lock cylinder, I would be back in business. T102 is stamped near the keyhole. Made in the '60's. The overall length is 7/8". The …

Click here to write your own.

OLD sliding glass door lock Not rated yet
The lock is very sloppy. I was hoping for more security, but nothing comes close to this lock set. I installed a Wright surface mount set, but it is …

Key lock for sliding patio door Not rated yet
I have the E2014 thumb latch lock on my moms sliding back door. It hasn't been latching and before replacing it with the same thing I would like to know …

What lock recommended for replacement? Not rated yet
I can't identify the brand for replacement of inside and outside handle with lock mechanism. Any help would be appreciated. Hi Ryan; Thanks for …

Which patio door #mortise #lock do I order?  Not rated yet
Hi, I tried to change my latch aND it fell into the sliding door. I attempted to install an E 2014 by opening up the latch area on the sliding glass but …

Thank you - You helped me identify my patio #door #lock ! Not rated yet
I just bought a new house. Three days after we moved in the sliding glass door lock jammed closed. I had to break the lock mechanism to get it opened. …

Is this #patio door mortise #lock an E2014 ? Not rated yet
I suspect the lock assemble shown in the 3 attached pictures is E2014. Please confirm. Where is the best place to purchase one of these locks? Hi …

Mortise lock security sleeve? Not rated yet
I believe I have an E2014. It no longer works and I also had a small coil spring fall out of it. I secured the catch with vice grips and removed the two …

The SPRING fell out Not rated yet
After removing the mechanism from the door, I sat down to look this info up, and I was holding the mortise lock in my hand when the small silver spring …

I need a replacement lock Not rated yet
Hello, can you help me to identify the model replacement lock that I need to order for my sliding glass patio door? It looks like the 2014 but I get …

Door permanently locked how to open ? Not rated yet
Hi there, Excellent information, I have a stumper for you. The slider at my beach house is stuck in the shut position. It's locked and the handle has …

Mortise Lock Slot Position Not rated yet
Hi, I too have a patio door that needs a mortise lock. I've read your explanations about the E-2013 and E-2014. My problem is that the spring inside …

Brenda Not rated yet
I purchased a condo that I am renovating for my son. It has a large sliding patio door. The door is 77"high and has two panels one stationary that is …

every lock & key Not rated yet
I have a sliding glass door lock made in 1973 inside is a standard surface mount with a hook bolt there is a logo on this inside handle of a 2 W 's connected …

John Not rated yet
Hi I can't find a replacement lock on patio door. Nothing at lumber stores are right size for the mortise lock. Can you help me. Do you sell or can you …

My patio door's lock is stuck! Not rated yet
I believe I have some type of mortise lock mechanism. When rotating the knob to unlock the door, it did not completely move the latch(es)so I am unable …

question on door handle Not rated yet
below i have put pics of the door handle i want to replace the lock does not lock anymore . my question is can this handle be replaced and if so where …

glass door latch,  Not rated yet
We have a slass padio with two doors in it. One of them has a broken door latch. Tha part that is broken is the back latch. I took some picturs of it on …

Can't figure out which lock I need Not rated yet
The lock on my screen door needs to be replaced. From reading your site it appears I can remove it right out of the edge of the door, making sure not …

Retainer clip problem Not rated yet
Thank you for your site. From your pictures, I was able to tell I have an E2077. The problem I have is with the retainer clip. It does not seem to hold …

Need new lock, don't know manufacturer Not rated yet
Lock on our sliding patio door just quit working one day. There are two hooks and between them is a very small piece that needs to be depressed to operated …

Click here to write your own.

New! Comments

Have your say about what you just read! Leave me a comment in the box below.

You are here:

› Replacing mortise locks