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Glen Iris, VIC 3146

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Sub-floor Repair

Timber floors that bounce or creak under tread may indicate the support timbers have been damaged as a result of continuous exposure to sub-floor dampness.

How to identify
  • The flooring has dropped from the underside level of the skirting boards
  • There is quad beading or the like at the toe of the skirting boards to disguise a subsidence gap
  • The nails on the polished boards have rust marks around them
  • The carpet is dark stained around the edges

If the floorboards are particularly spongy around the edges of the room it may be likely that the joist ends have shrunk and are failing to support the floor adequately, indicating that tailing may be required. Floors that have excessive bounce in the middle of the room may have bearers that are not being adequately supported by the stumps, indicating restumping is required.

Intermittent or continuous sub-floor odour may be a symptom of a damp hostile sub-floor environment.

Flooring timbers will eventually fail if subjected to prolonged exposure to sub-floor dampness. The deterioration may be accelerated under areas of non-vapour transmitting floor coverings such as polyurethane based polished floor finish or tiles.

Let our experienced professionals here at FG James help identify and offer solutions for you to tackle all your sub-floor dampness repairs efficiently and effectively today.

  • The age of the sub floor timbers
  • Constant exposure to dampness
  • Lack of sub-floor ventilation
  • Lack of sub-floor ground clearance
  • Sub-floor support timbers not isolated from the brick piers by membrane

FG James offers a full sub-floor inspection service to advise and report on the condition of your flooring.

what covers in the Report
  • General observations
  • Terrain, topography and slope considerations
  • External plumbing and drainage factors
  • Internal plumbing
  • Incidence of internal condensation and mould
  • Investigation of sub-floor odours
  • Existing sub-floor ventilation effectiveness
  • Recommended improvements to sub-floor ventilation
  • General sub-floor conditions
  • Excessive rubble or debris, dry rot, insect activity, rising dampness in foundation brickwork
  • Ground clearance
  • Site oversite situations
  • Flooring timbers, stumps, bearers, joists etc.

Rectification and/or remedial works recommended

  • Removal of faulty flooring and disposal off site
  • Excavation and removal of sub-floor debris and earth to allow minimum recommended ground clearances
  • Penetrations of foundation walls and dwarf walls to allow cross flow ventilation
  • Replacement of faulty stumps and laser level alignment of replacement precast concrete stumps set in 20Mpa concrete
  • Supply, cut to measure and installation of F17 structural grade support timber approximately membraned from the stumps and piers
  • Supply and installation of specified flooring

FREE inspection reports, detailed reports and quotations.     Call us Today!! 03-9885-9444


Rotting Floors


Basement & Cellar Dampness


Lateral Damp


Soil Inspection & Report


Specialised Replastering


Advisory Services


Damp Odours & Mould


High Wall Ventilation


Mechanical Ventilation


Bathroom Renovations


Written Condition Reports


Damp Skirting Replacement


Environmental Damp


Rising Damp


Sub Floor Ventilation


Leaking Showers


Specialised Drainage


Membranes to Concrete Balconies / Decking


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