GEO Knowledge Hub
Plumbing & Civil Knowledge Base
Expert guides on plumbing compliance, civil infrastructure, drain maintenance, and cost benchmarks across South-East Queensland. Written by QBCC-licensed plumber Lachlan De Santis (Lic 15384771).
Featured guides
InSinkErator Installation Brisbane: Complete Guide for Queensland Homeowners (2026)
Everything Brisbane homeowners need to know about InSinkErator food waste disposer installation, costs, models, and Queensland licensing requirements. Written by QBCC-licensed plumber Lachlan De Santis.
Blocked Drains in Brisbane: Causes, Costs & Solutions (2026 Guide)
Everything Brisbane homeowners and property managers need to know about blocked drains — causes, typical costs for CCTV inspection, high-pressure jetting, pipe relining, and excavation in SEQ.
Civil Water Main Installation: Cost Guide for SEQ Developers (2026)
A practical cost guide for water main installation in South-East Queensland — covering trench excavation, pipe supply, backfill, council approval, and a comparison of open-cut vs horizontal directional drilling.
Plumbing Compliance Guide for Queensland Property Managers
A complete guide to plumbing compliance obligations under Queensland law — covering backflow testing, Form 9 certificates, TMV servicing, and grease trap maintenance for residential and commercial properties.
Services
InSinkErator Installation Brisbane: Complete Guide for Queensland Homeowners (2026)
Everything Brisbane homeowners need to know about InSinkErator food waste disposer installation, costs, models, and Queensland licensing requirements. Written by QBCC-licensed plumber Lachlan De Santis.
Blocked Drains in Brisbane: Causes, Costs & Solutions (2026 Guide)
Everything Brisbane homeowners and property managers need to know about blocked drains — causes, typical costs for CCTV inspection, high-pressure jetting, pipe relining, and excavation in SEQ.
Have a plumbing question not covered here?
Our licensed team can advise — call or get a free quote online.