Providing quality Service

Sydney Sash Window


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At Sydney sash window factory we specialise in the repair and replication of sash windows and other heritage items such as bespoke doors, barge boards etc.

Sydney sash window factory is the custom manufacturing side of Old school carpentry. where we can remake window sashes, effect repairs to double hung sash windows, upgrade glass, provide draught seals or create replacement doors or whatever is required, so no third party is required resulting in higher quality and quicker lead times.

Everything is hand crafted using traditional joinery methods such as Mortice and tenon joinery, using a wide range of timber’s such as accoya, cedar, merbau, New Guinea rosewood and thermally modified hemlock to name a few.

The owner Darren Stewart has over 36 yrs experience in carpentry and joinery, having served a full apprenticeship in Scotland, Uk and working in the various national trust and historic Scotland listed buildings. Old school carpentry has been predominantly repairing sash windows in Sydney since 2008 and have hundreds of of satisfied repeat customers.


Sash cord replacement

Starts from $200 per sash

Draught seal upgrade

Stars from $695 per window

On-Site Glazing 

Starts from $185

Window cill replacement

Starts from $895 

New sashes replicated 

Starts from $695 

Full Monty

Starts from $2195

Our Works


From Our Clients

kate b
kate b
Very happy with responsiveness and work. Darren very pleasant to have around. Most importantly he 'got it'. It's a rental and I don't want rolls royce service and prices. I just want it fixed for a reasonable price. He accommodated me when one window turned into two also. Very happy and will use again.
Jake Cameron
Jake Cameron
Good value, top quality and down to earth easy person to deal with.
David Troup
David Troup
Sash window repairs - Darren from Old School Carpentry is a master craftsman in all respects. His workmanship and his customer service are both outstanding. I can not recommend Darren more highly and will be happily having Darren back to work further on the remaining windows in the house which require a full replacement. Darren expertly returned our double hung sash windows to beautiful working order and installed his draught seal to each. Nothing was straightforward in our heritage house but nothing phased Darren. His prices are also excellent value. The outcome is one very happy customer and home with beautifully restored windows, a lovely breeze (previously none opened nor could open with missing parts) and no breeze at all when the windows are closed. I read his reviews before contacting Darren and am happily adding to his glowing reviews.
Vivian Fong
Vivian Fong
Sash window repair - Darren came to look and quote for some window repairs. Turns out it was a much bigger job than I initially thought once her looked. We needed 4 new sashes along with some other work! It took time but they came out beautifully. Daren is friendly, responsive to messages and competitively priced. I fully recommend him and would not hesitate to use him again.
Blake Hancock
Blake Hancock
Darren is a knowledgeable and friendly service provider who will go above and beyond. Highly recommended
Troy Murphy
Troy Murphy
10/10 100% with out a doubt would highly recommend Old School Carpentry! The attention to detail, the thoughtfulness of extras added to the job that I had no idea that I would need, but DID need is top notch! Best experience I’ve had in a very very long time
Louise Badaoui
Louise Badaoui
Darren was very professional and did a great job with my mum’s sash windows. Definitely would recommend- thanks Darren!
Kim De Deckker
Kim De Deckker
Darren did a great job on my broken sash window. Communicated well, turned up on time and fixed the window while I went to work. It even opens from both top and bottom now, which it never did before. Very pleased with the job and comparative price.
Ken McCormack
Ken McCormack
Sash window repair, quick and the windows work as they're supposed to now (had been under-weighted for 50 years!!)