Original home or rebuild?
| Mid-century single storey | 2000s two storey brick veneer | |
|---|---|---|
| Size | About 100 m2 of floor space on a 600 to 900 m2 block | Two storeys, built in the 2000s to replace older homes |
| Often suits | Splits in the main rooms, or a small ducted system in the roof | Ducted reverse cycle with zones for upstairs and downstairs |
| Check before work | Possible asbestos in walls, eaves or ceilings | Roof space access and where the ducts can run between floors |
What's different about Seven Hills
Mostly houses
At the 2021 Census, 84.1% of Seven Hills homes were separate houses, 9.9% townhouses or semis and 5.6% apartments. 35.3% were rented.
A soldier settlement, then the housing schemes
Land near the station was cut into blocks for a soldier settlement scheme in 1917, and from 1959 to the 1970s housing schemes carved Lalor Park and Kings Langley out of Seven Hills.
Western Sydney weather
Seven Hills' records from 1950 to 1975 run from 41.7 degrees down to minus 3.9. The suburb is split between Blacktown City and the City of Parramatta, both shaded climate zone 6 on the ABCB map.
Industry north of the line
The suburb sits 33 km north-west of the CBD, and most of its industrial and commercial development is north of the railway.
Older home? Think about asbestos before anyone drills
SafeWork NSW says a home built before the late 1980s may contain asbestos, commonly in roofs, ceilings, walls and eaves. A new split means a hole through a wall for the pipes, and ducted work means time in the roof. Tell the installer when the house was built. If they suspect asbestos, it's treated as asbestos until a laboratory test says otherwise, and a licensed asbestos professional handles it. Never drill or cut suspect sheeting yourself.
What we'd do
Where we'd start in Seven Hills
We'd work out the floor area first. For an original single storey home, we'd look hard at two or three splits before paying for ducted, because the ACT Government guide says splits suit houses under 180 m2. For a two storey rebuild, we'd want ducted zoned by floor. In either, we'd ask for the heating capacity as well as cooling. Licence-checked installers near Seven Hills who do that kind of job will see what you send us, and only the one who takes it gets your contact details. If nobody around Seven Hills has taken it after 48 hours, installers elsewhere in NSW may see it too.


