It is time to repair your old wooden windows?

Most DIY home renovators actually have the skills to repair their old wooden windows, installation of our high quality draught seals, new hardware and a fresh coat of paint.

Our two part flexible epoxy has been specifically formulated for the repair of old wooden windows and it’s suitable for external use on windows, but it's also a great product for other timber repairs and joinery work.

Your old timber windows can be repaired

Most of the classic, character homes in Australia have different styles of old timber windows.  Double hung sash windows are particularly common and without a doubt, yours might be rattly to operate, or worse, they might be painted shut.  

Crucially, they’re probably also leaking cold air into your property, letting your heating and cooling escape and making it uncomfortable.  With draughts and dust entering your home, your expensive air conditioning bills are escaping too.  

This can translate into hundreds of dollars of energy costs each year, crippling the energy efficiency of your home.

Most handy DIY home renovators can actually repair their old windows themselves, making the windows look great again.  

Importantly also, it’s pretty easy to install our draught seals.  Our draught seals will dramatically reduce noise, air and dust entry into your home, and also help you restore the smooth operation of your old timber windows.

Draught seals for wooden windows

Half the heat in an older Australian home leaks out around the windows and doors, and most of it goes through gaps you could cover with a finger. These are the seals we fit on our own installation jobs: brush seals riding in a carrier track, compression seals seated in a kerf, and surface mounted profiles for doors and hinged sashes. Fitted properly they stop the draught, the dust and the rattle, along with a surprising amount of street noise, and the sashes still slide the way they should.

For double hung windows, the carrier track and brush seal pair is the core of the system, with the brush chosen to stand 1 to 2mm taller than your gap. The compression seal handles kerfed grooves from 4.5 to 8mm, and you can order a free sample to check it against your groove before committing to a roll. Doors and casements take the perimeter seal, V-seal or a brush bottom door seal.

Not sure where to start? The draught sealing kit boxes the whole system for one window, and the DIY guide shows the full job on video before you spend a dollar. Victorian landlords, take note: draught proofing becomes mandatory in rentals from July 2027.

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Fixing rotten wood & repair your timber windows, before anything else

Like any renovation project, it’s important to fix the cause of a problem rather than just painting over it.  Sadly, many of us uncover dodgy repairs from the previous owner or poor workmanship from a qualified tradesperson.

For wooden windows, this can mean removing loose paint and prodding any rotten patches to explore the extent of wood root or weather damage.  Once you’ve determined the extent of any wooden rot, it comes time to cut out and remove the damaged section, replacing it with seasoned timber of the same species wherever possible.

As you are making each repair it is important to try and match as much of the original joinery as possible.   The old fashioned joints have outlasted many modern fixings and fastenings, so replicating them again will ensure longevity of your windows into the future.

Sometimes when fixing these joints a flexible epoxy adhesive and filler is necessary for bonding of joints and the creation of smooth finishes.

Our two part epoxy has been specifically formulated for the repair of old wooden windows and it’s suitable for external windows.

One word of warning: When you work on old wooden windows make sure you consider the likelihood that lead paint is present. It is very important that work health and safety precautions are followed to stop the ingestion and transfer of old paint dust and chips.

Repair materials for wooden window

Thirty five years of repairing wooden windows sorts products into two piles: the ones that survive on real jobs and the ones that end up scraped back out. This collection is the first pile. Glazing supplies, timber repair epoxies, cords and consumables, each one used by our own crews before it earned a place in the store.

Sash Glaze replaces linseed putty for bedding and facing glass, skins fast and takes paint the same week. The wood repair epoxy system rebuilds rotten sills and rails rather than hiding them. Waxed cotton sash cord comes from the English family firm that has braided it since 1856, and their story is worth reading. Setting blocks, acrylic sealant and secondary glazing film round out the kit.

If the job is a full reglaze to heavier glass, price the counterweights in from the start: the sash weight calculator gives the figures in kilograms, and the reasons are on the blog.

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More about our two part epoxy rapid curing wood filler

Sellaseal DT Woodfiller is supplied in a twin side by side cartridge enabling the contents extruded in equal amounts using our customised double epoxy gun to accurately dispense the filler. On curing, it can be machined, drilled, nailed, screwed and can be coated with primer/undercoat and pain

This rapid curing, thixotropic repair filler is ideal where a speedy repair is required to damaged or rot affected timber. It is particularly suitable as an adhesive and is ideal for splicing applications. 

Sometimes it's not possible to cut all the rot out and this is where our special epoxy hardener system should be used prior to using the DT Epoxy. The hardener will kill fungal spores and harden any soft timber. This will protect your investment in making the repairs last a long time.

It is also easy to model, has excellent cut off properties and maintains its general shape even during curing.

Sellaseal DT Epoxy is a modified, flexible, two-part epoxy resin based wood filler designed to give superior performance and longevity. 

If you’re looking for a flexible epoxy sealant to assist with your home renovation of old wooden windows, our DT Epoxy is the way to go.

Buy our products online now

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