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Classic Granny Flats

Updated 2026-10-05 · 3,129 reviewed · 177 listed · Scored from 43 Google reviews · How we rank ›

4.1(43) 68 composite score See reviews on Google ✓ Google-verified
Granny Flats & Home ExtensionsCustom Home BuildersHome BuilderDisplay Home & Volume BuildersConstruction CompanyBuilding Consultant
Classic Granny Flats
Location
Joondalup
Services
Granny Flats & Home Extensions, Custom Home Builders, Home Builder
Reviews
43
Best for
homeowners wanting a patio or granny flat and valuing design consultation and installation quality during the build phase

Business data from Google Business Profile, checked 2026-10-05. Facts from the business's own website were fetched 2026-09-05.

Compare: Cast Studio vs Classic Granny Flats: which fits your display home or volume build?

What reviewers think

Most who have worked with Classic praise the team's responsiveness during design and build, particularly installer Jack and consultant Rob, as well as the quality of the finished work. The main friction point is aftercare: several reviewers report leaks and defects going unaddressed for months, and one account of the company dismissing warranty claims and damage that followed.

Praised for
  • responsive and easy communication
  • skilled installation and workmanship
  • professional staff named and recognized
  • longtime family business with experience
Watch-outs
  • post-handover defect resolution slow or absent
  • warranty complaints dismissed or unresolved
  • communication drops after project completion
responsive-teamquality-craftsmanshipprofessional-staffpost-handover-supportdefect-resolutionpoor-communication
Best for: homeowners wanting a patio or granny flat and valuing design consultation and installation quality during the build phase
Think twice if: warranty and post-handover support concerns you; several reviewers report leak repairs taking months or being refused entirely

Strengths

  • Long-standing family business with proven track record
  • Aluminium construction resists rust in coastal homes
  • Named installers (Jack, Glen) and consultants (Rob, Kevin) praised for skill and care

Worth knowing

  • Installer Jack noted for skill and willingness to adapt during build
  • Consultant Rob praised for design problem-solving and hours spent on complex projects
  • Sales consultant Kevin De Santos at Canning Vale showroom
  • Supervisor Johno mentioned for granny flat project
  • Maintenance staff member Jason assisted with shower leak repairs years after installation
  • Aluminium patio frames and pre-painted steel roofing mentioned as standard materials
  • One project took 11 months to complete due to complex design
  • Business certification/claim: BC12890

What reviews say by service

Granny Flats & Home Extensions
Installation praised for professionalism and design flexibility; post-handover defect repairs reported slow or dismissed
Custom Home Builders
Complex custom designs handled well during consultation and build; one 11-month project completed to high standard but with long timeline
Home Builder
Strong execution during build phase; aftercare support a weak point

How it compares

  • Rated 4.1 against a 4.56 average across the 26 display home & volume builders businesses listed here.
  • Has more Google reviews than 78% of the businesses in this directory.

How did this business earn its score?

How We Score
Star rating 52
Review volume 71
Review recency 100
Review sentiment 51
Profile completeness 100
Verification 30

Rating breakdown

5
30
4
2
3
3
2
3
1
5

Questions people ask

Do you work outside Joondalup?
Yes. Their website lists service areas across Perth metro, Western Australia, Joondalup, and Canning Vale, with a showroom in Canning Vale. One recent review mentions granny flat work in the Mandurah region.
What materials do you use for patios?
Their website states they work with solid aluminium patio frames, roll-formed pre-painted steel roofing, insulated roofing, and gable/flat/glass-enclosed/double-hipped alfresco styles. Reviewers praise aluminium for rust resistance in coastal areas.
How long do granny flat and patio builds typically take?
One complex custom project mentioned in reviews took 11 months, though the reviewer noted this was due to design complexity and industry-wide busyness at the time. Standard timelines are not stated in available reviews.
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Last updated 2026-10-05