Repairs & Maintenance · 7 min read · JT Handyman

Drafty, Stuck or Cracked Windows: Repair Options for Older Homes

If you live in an older Melbourne home, you already know the feeling: a window that won't budge in summer, whistles cold air in July, or has a hairline crack creeping across the glass. The good news is that most of these problems do not mean ripping the whole thing out. Smart window repair Melbourne homeowners can lean on will often solve the issue for a fraction of replacement cost — you just have to know which problem you're actually dealing with, and who to call to do it once, properly.

Melbourne's housing stock is full of timber sash windows, mid-century aluminium frames and federation-era casements. Each ages differently, and each has its own fix. Below we walk through the three complaints we hear most — drafty, stuck and cracked — what causes them, what your options are, and how to tell a quick repair apart from a job that genuinely warrants replacement.

Why older windows go drafty, stuck or cracked

Before you spend a dollar, it helps to understand what's happening behind the frame. Window problems in older homes almost always trace back to one of three culprits: movement, moisture, or worn-out seals and putty. A Victorian terrace in Thornbury and a 1970s brick-veneer in Keilor Downs will fail in different ways, but the underlying physics is the same — materials expand, contract, swell and shrink with Melbourne's swingy seasons, and the weak points give way first.

• Timber frames swell with damp winters and shrink in dry summers, which is why a sash that glided in March can jam solid by August.
• Old putty and seals go brittle, crack and fall out, letting in drafts and water long before the glass or frame itself fails.
• Aluminium frames rarely rot, but their rubber gaskets perish, their rollers seize, and condensation between double-glazed panes signals a blown seal.

Drafty windows: stop the whistle without replacing the frame

A draft is the most common — and usually the cheapest — window problem to solve. If you can feel cold air or hear a whistle near the frame, the seal has failed somewhere, not the window itself.

What's usually going on

• Perished weather seals or worn brush strips around an opening sash.
• Dried-out, cracked or missing putty holding the glass into a timber frame.
• Gaps that have opened up between the frame and the wall as the house has settled.

Your repair options

• Reseal and re-putty. Raking out failed putty and re-glazing, or replacing perished rubber seals, restores a weather-tight window without touching the glass or frame.
• Draught-proofing kits. New brush strips and compression seals on the opening edges cut the whistle and the heat loss — a genuinely worthwhile upgrade before a Melbourne winter.
• Re-caulk the perimeter. Where the frame meets the wall, a fresh, properly tooled bead seals out both wind and water.

Done right, draft repairs make a noticeable difference to comfort and heating bills, and they're a long way from a replacement budget.

Stuck windows: free them up without forcing the frame

A window that won't open (or won't stay open) is usually mechanical, not terminal. Forcing a stuck sash is the fastest way to crack glass or split a timber rail, so this is one to diagnose before you heave on it.

Common causes in older homes

• Swollen timber from moisture — the sash physically grows into the frame.
• Layers of old paint that have effectively glued the sash shut over decades of repaints.
• Failed sash cords or balances in double-hung windows, so the window drops or jams.
• Seized rollers or tracks on sliding aluminium windows, full of grit and grime.

What a repair looks like

• Easing and re-aligning a swollen sash, then sealing the timber so it doesn't re-swell.
• Cutting paint seals, cleaning the channels and re-balancing or replacing sash cords.
• Servicing or replacing rollers and clearing the tracks on sliders so they glide again.

Most stuck-window jobs are a same-visit fix. It's only when the timber has rotted through, or a frame has racked out of square, that replacement enters the conversation.

Cracked or broken glass: repair, re-glaze or replace?

A crack is the problem people panic about most, and it's the one where the right answer depends entirely on the detail. A chip in a single pane is a different job to a fogged-up double-glazed unit.

• Single cracked pane. In most timber and aluminium frames the glass can be re-glazed — the frame stays, only the glass is replaced. This is the standard, sensible fix.
• Fogging between double-glazed panes. That haze means the sealed unit has blown. You don't replace the whole window — you replace the insulated glass unit (IGU) inside the existing frame.
• Cracked or rotten frame, not just glass. If the frame itself is split, rotten or no longer holding the glass square, that's where partial or full replacement starts to make sense.

One important note for older Melbourne homes: glass in or near doors and at low level may need to meet current safety-glass standards when replaced. A proper glazier or repair team will flag this rather than just slotting in like-for-like — it's the kind of detail that protects you down the track.

Repair or replace? How to tell the difference

Here's the honest rule of thumb we use on site. Repair when the frame is sound and the problem is seals, putty, paint, hardware or a single pane. Replace when the timber is rotten through, the frame is badly out of square, or you're chasing the same draft and the same jam year after year and throwing good money after bad.

• Lean toward repair if the window opens and closes, the frame is solid when you press it, and it's a comfort or seal issue.
• Lean toward replacement if you can push a screwdriver into soft, rotten timber, see daylight around the frame, or the same window has been "fixed" three times already.
• Consider an upgrade when you're already replacing — double glazing can be the right call for energy efficiency, but it should be a choice, not a default upsell.

The trap older-home owners fall into is being talked into a full replacement when a repair would have done — or limping along with repeated patch-ups on a window that's genuinely finished. You want someone who'll tell you the truth either way.

How JT handles this

This is exactly where having one team matters. A window job in an older home can touch several trades at once — carpentry for the timber, glazing for the glass, painting to finish, sometimes a plasterer where water's got in around the reveal. Chase those separately and you're back to juggling four contractors for one window.

JT is a Melbourne property repairs and maintenance team that's grown from one person to a 24-strong in-house crew in under two years, with a 5.0 Google rating, because we do the whole job under one roof. With JT you get:

• One point of contact who owns your window job from the first look to the final photo — no being passed between a glazier, a chippy and a painter.
• Every trade in-house, so the repair, the glass, the timber and the finish are all handled by the same coordinated team.
• An instant quote. Renovations take time — your quote shouldn't. You tell us what's wrong and get a real price fast, not a callback that never comes.
• A straight answer on repair vs replace, because we'd rather fix what's fixable and keep you as a customer than oversell you a window you didn't need.

Whether it's one drafty sash in a terrace or a round of stuck and cracked windows across a whole rental property, it's the same simple deal: one team, one call, done.