Which patio door 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 door?

Anderson mortise lock holes dont line up

by Ashley K.
(Charleston, SC)

Our sliding glass door has been broken since the first week we moved into our home 7 years ago.

I tried and tried back then to figure out a remedy, but in the end I eventually settled with cutting a space two-by-four to act as a security brace.

Now we are selling our home and I can't ignore the sliding glass door any longer.

Basically, the door is missing the mortise lock hardware and the handle. Using my handy calipers, I measured the holes that were cut for the handle and the mortise lock, and since then I've been searching for suitable replacement parts.

I don't have any idea who manufactured the door, but I have managed to put together a 1:1 scale diagram of the door's hole placements.

I'm getting desperate to find a working solution. We need to put the house on the market within the week, and souring the net for a sure solution is wearing me down.

Please help!

I converted my cutout diagram to a jpg and did my best to preserve the scale. As long as the server doesn't resample my image, everything should line up correctly.

Hi Ashley;

After a lot of searching this looks to me like an Anderson Door. Their old mortise lock design certainly fits the mortise drawing you have provided.

The hole 2-9/16 hole centers on the Anderson lock dont match up though. I think you are going to have to drill at least one extra hole through the door to get an Anderson handle set to fit.

This shouldnt be a huge big deal since the holes will all be covered up by the handle set.

Can these patio door locks be keyed

by Nancy
(USA)

I have a 1965 vintage home with Anderson windows throughout. I don't know the brand of the 2-panel wood sliding patio doors, however they are original. I hope to find a cylinder lock that will fit the existing handle/lock for the door so that I can enter from outside. The current mechanisms and handles are in perfectly good working order, however there is only a "knockout" where a non-existing lock would fit.

I've attached photos of the mortise lock and interior and exterior handles - measurements included. I'd appreciate any advice in finding what I need or even in figuring out who the maker of the door is.

Many thanks.

Hi Nancy;

Thanks for great pictures !

It certainly looks like there is a knockout for a lock cylinder on the outside handle. The only way to know for sure would be to remove the outside handle and look inside it.

Once the a hole is made for the lock cylinder, it should just slide in place. A lever on the back of the lock cylinder engages the mortise lock and opens and closes the lock when a key is inserted.

Any good local locksmith ought to be able to key one of these locks. I can also get the lock cylinder and key if no one local will help.

Its also might be possible to buy the keyed handle if the latch lever for the lock cylinder proves difficult to find.

A company called Prime-Line is the biggest supplier of these locks. They supply Lowes and Home Depot as well as many Glass Shops

How do you remove a patio door 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.

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Truth patio door lock

by Jeff

I have an older patio door, with a Truth Entry Gard Handle/Lock. Recently it became harder to lock. There is an external key lock and an inside sliding lock. It has gotten to the point, where it will not lock at all.

I have cleaned the tracks, tried graphite and lubricant in the lock. Where the lock meets the door frame it is smooth with no mechanical parts to connect to the frame.

On the upper and lower track there is a metal frame where their is a grove for something to come out of the door and slide into.

Is there some easy procedure to solve this problem or what other ideas would you suggest.

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Not locked in

by JR
(Stockton, CA)

Have a vinyl glass patio door and mortise lock broken. Original handle mounting holes and keyway hole are drilled through inner metal frame to deep for a universal replacement to be installed easily. Do I need to remount and re-drill all the hardware?

The easiest fix would be to attach a surface mount patio door lock. These can be adapted to just about any patio door.

The C1000, C1105 and C1216 lock on my surface mount locks page would work.

The only trick would be adapting the lock keeper to mount on the casing on the side door jamb. Call me or contact me using the numbers on the home page if you need more help.

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