Double-glazed windows & doors in Endeavour Hills.
Endeavour Hills was built mostly in one wave between 1978 and 1988 — a suburb of single-glazed brick-veneer 3 and 4-bedroom homes on north-south gridded streets. Forty years on, those windows are leaking heat and the energy bills are eye-watering. We do more full-house retrofits here than anywhere else in South East Melbourne.
The Endeavour Hills double-glazing story.
The 80s housing wave — almost universally single glazed.
Endeavour Hills was sub-divided and built out as one massive estate 1978–1988 by a single major developer. The build pattern is incredibly uniform: 3 or 4-bedroom brick-veneer on a 600–800m² block, terracotta tile roof, mill-finish aluminium sliding windows, single 3mm clear glass. In a typical 220m² floor area there are 14–18 window openings plus a rear sliding door. Forty years of weathering means the perimeter caulking has long since failed and most homes have visible condensation streaks on the inside reveal in winter.
The energy bill maths is brutal.
A typical Endeavour Hills 80s brick-veneer loses 25–35% of its winter heating energy through the windows and door alone. Gas heating bills at $450–$700 a quarter are common, and that's after the rebates. A full-house argon Low-E IGU retrofit (replacing frames where they're aluminium, retrofitting drop-in IGUs where the frames are still good timber) drops that figure by 30–45%. Payback on the upgrade investment is 7–10 years on energy savings alone, faster with the VEU rebate factored in.
VEU rebate — this is exactly the cohort it was designed for.
The VIC Energy Upgrades window activity was designed almost exactly for the Endeavour Hills profile: single-glazed existing homes in Climate Zone 6. Per-window rebate runs $250–$650 for the standard sizes here. A 16-window full-house generates $4,000–$8,000 in activity certificate value — we lodge that through our Accredited Provider, and it appears on your quote as a discount. You don't apply, claim, or wait.
Elevation + cold-air drainage from the hills.
Endeavour Hills sits in a north-facing bowl below the Dandenong foothills. On still winter nights cold air drains down off the slopes and pools in the suburb — minimum temps regularly hit 2–4°C lower than Cranbourne 8km south. That makes the thermal payback of the retrofit larger here than on the flat plains south of the freeway.
Typical Endeavour Hills jobs.
- 4-bedroom 1985 brick-veneer, 17 openings, full thermally-broken aluminium frame replacement ($26K–$35K, VEU offset ~$5K)
- 3-bedroom 1982 brick-veneer + rear sliding door, full retrofit ($20K–$28K)
- Period timber-frame replica for a renovated 80s home with new timber sashes (IGU drop-in) ($14K–$20K)
- Rear-only retrofit (north-facing living + master bedroom) where budget is tight ($8K–$13K)
- Condensation-fix room-by-room retrofit, master bedroom + ensuite first ($4K–$7K)
Other service areas.
Free Endeavour Hills in-home measure.
The thermal-upgrade sweet spot for VEU rebates. Honest payback maths on the day. Quote inside 7 days.