Keep Your Existing Frames
Retrofit installs into your current timber or aluminium — no structural work, no demolition, no mess.

Retrofit specialists for Balwyn homes. From $495/m² — transparent pricing, installed in one day.
Inner East · 3103
Balwyn's leafy streets are lined with substantial Victorian and Edwardian brick homes — many under Heritage Overlay. Retrofit double glazing gives these period properties modern thermal performance without altering their street appearance or requiring a planning permit.
Local area · Balwyn Park and deep heritage precincts
Balwyn pricing guide
Services in Balwyn
Retrofit Double Glazing
Keep your frames. Replace only the glass. From $495/m².
Soundproof Windows
Acoustic laminated glass — cut tram and road noise by half.
Energy Efficient Windows
Low-E glass reduces heating bills up to 40%.
Shower Screens
Frameless and semi-frameless in any bathroom configuration.
Emergency Glass Repair
Same-day response across Melbourne.
Commercial Glazing
Shopfronts, strata, office retrofits. Itemised quoting.
Why Balwyn Homeowners Choose King
Retrofit installs into your current timber or aluminium — no structural work, no demolition, no mess.
Most Melbourne homes are completed in a single visit. You're back to normal by sundown.
Half the cost of full window replacement with equivalent thermal and acoustic performance.
Cut heating and cooling bills year-round. The glass upgrade that actually pays for itself.
Glass and workmanship guaranteed in writing — not just a verbal promise.
We service all suburbs from the CBD to the Mornington Peninsula. No travel surcharges.
Customer Reviews
Verified Balwyn customers — every word of it real.
5.0 · 2 Reviews · Google
Got three quotes. King came in $2,100 less than the next cheapest and finished the job in a single day. No upselling, no vague pricing — the final invoice matched the online estimate exactly.
Jen & Tom R.
Balwyn · Google
Our large Balwyn North home had 22 windows — we expected a major disruption. King completed the whole job in two days, working systematically through each room. The pricing was itemised and transparent upfront — no variations, no surprises. Final invoice matched the estimate exactly. You'd expect that to be standard but it isn't with most trades.
Robert & Kim A.
Balwyn North · Google
FAQ
Common questions from Balwyn homeowners before booking.
Yes — we regularly install retrofit double glazing, shower screens and carry out emergency glass repairs across Balwyn (3103) and surrounding Inner East suburbs. Lead time for retrofit work is typically 5–10 business days; emergency call-outs are same-day.
Pricing in Balwyn starts from $495/m² for standard double-glazed units and ranges to $1,190/m² for triple glazing with acoustic laminate. A typical Balwyn home with 10–14 windows falls between $4,500 and $12,000 — pane size, glass specification and frame condition are the main variables. Use the Instant Estimate Tool for a firm, itemised price before committing to anything.
For most Balwyn homes, yes. Single-pane windows account for 25–35% of home heat loss in Melbourne winters. At current energy prices, most retrofit installations in Inner East suburbs return the investment within 7–12 years through reduced heating and cooling bills — sooner on properties where acoustic performance is also a driver.
Retrofit double glazing replaces the glass only — the existing frame stays exactly in place. Because no structural work is involved and the exterior appearance is unchanged, most Balwyn heritage overlay properties are exempt from planning permits. We confirm eligibility at measure-up; in almost all cases no permit is required.
A standard Balwyn home with 8–14 windows is completed in a single day. We remove the old glass, install factory-sealed double-glazed units, re-seal and clean up before leaving. There is no structural work, no plaster damage, and no return visit required for most jobs.
Get a firm, itemised estimate for your Balwyn home in 60 seconds. No sales calls, no site visit required.
✓ No site visit required
✓ Price locked at quote
✓ 10-year warranty
✓ Melbourne-wide