Replacing ageing timber windows with custom aluminium frames can reduce routine coating maintenance, update the appearance of a home and create an opportunity to improve glass and operation. The work is not a simple glass swap: the existing opening, sill, reveals, wall construction and external finishes must be assessed.
Call 0481 818 785 or email [email protected] with photographs, plans and information about the problem you want to address.
Why Homeowners Replace Timber Windows
Common reasons include deteriorated coatings, swelling or sticking sashes, damaged sections, draughts, difficult operation and the desire for double glazing. The condition varies between openings, so a full schedule and photographs are more useful than pricing one sample window.
Can Aluminium Fit the Existing Opening?
Often yes, but final dimensions depend on how the timber frame is built into the wall. Visible glass size is not the manufacturing size. Architraves, reveals, sills, brickwork, cladding, flashing and internal finishes need to be reviewed.
Keeping or Changing the Window Style
A timber double-hung, casement or awning window does not always need to be replaced with the same operating style. Homeowners can compare fixed, awning, casement and sliding aluminium configurations according to ventilation, cleaning, external clearance and appearance.
Single or Double Glazing
Replacement is an opportunity to compare basic single glass, double glazing and Low E options. The selected aluminium system must support the glass thickness, weight and sash size. Thermally broken frames can also be considered where stronger performance is required.
Traditional Appearance and Glazing Bars
Aluminium replacement windows can use compatible glazing bars or colonial bars to maintain divided-light character. Georgian, colonial, Hamptons and other layouts should be planned against the actual sash and glass proportions.
Removal, Reveals and Finishing
Removal must protect surrounding construction as far as reasonably possible. The scope should state whether disposal, timber reveals, trims, sealing and repairs are included. Some existing damage or concealed conditions may only become visible after removal.
Replacement Process
- Photograph every window internally and externally.
- Record approximate opening sizes and desired operation.
- Compare frame, glass, colour, screens and hardware.
- Complete final site measurements and confirm scope.
- Manufacture the approved custom units.
- Remove agreed timber windows and install the new frames.
- Check operation, locks, seals and drainage details.
Maintenance After Replacement
Powder-coated aluminium does not require the regular painting associated with timber, but it is not maintenance-free. Frames, glass, tracks, drainage openings, seals and hardware should be cleaned and checked. Coastal or industrial exposure may require more frequent washing.
Related JL Windows Guides
- Window Replacement Melbourne
- Aluminium Windows Melbourne
- Window Replacement Cost Melbourne
- Glazing Bars Melbourne
Timber-to-Aluminium Replacement FAQs
Will the new frame be the same size as the old timber frame?
Not necessarily. Manufacturing dimensions depend on the actual opening, removal method, reveals and surrounding construction.
Can I keep a traditional appearance?
Yes, suitable frame proportions, colours and compatible glazing bars can help maintain traditional character.
Can double glazing be included?
Yes, where the selected aluminium system suits the insulated glass unit and panel sizes.
Will replacing windows damage walls?
Removal work is planned to limit damage, but existing frames are connected to surrounding finishes and concealed conditions can vary. The agreed finishing scope should be clear.
Do all timber windows need replacement at once?
No. Work can be staged, although consistent frame colour, product family and future detailing should be planned.
Request a Project Quote
JL Windows supplies custom aluminium windows and doors for Melbourne homes, renovations and new builds. We operate from 19 Adele Street, Keysborough VIC 3173. Call 0481 818 785 and provide a complete opening schedule where possible.
