When most homeowners budget for new flooring, they focus on the material itself — the planks, the pattern, the finish.
But anyone who’s renovated an older apartment block in suburbs like Clayfield or Hendra knows the real challenge often lies beneath the surface: floor preparation.
In this behind-the-scenes look, flooring expert Roman Miller walks through two real Brisbane projects to show how levelling, underlay, and substrate issues can turn a “simple two-bedroom job” into a multi-day operation — and why being honest about limits protects both tradespeople and clients.
1. Why Old Apartments Are Tricky
Classic brick apartment buildings from the mid-20th century are full of character, but they were never built with modern flooring tolerances in mind.
Uneven slabs, brittle screeds and inconsistent heights mean installers can’t simply click planks together and walk away.
A proper installation begins with grinding high spots, checking with levels, and then applying multiple coats of self-levelling compound until the surface meets the manufacturer’s tolerance. It’s labour-intensive, messy work — and it’s where much of the hidden cost lies.
2. The Real Cost of Floor Preparation
Homeowners are often surprised when a quote for a small apartment includes several thousand dollars in floor prep.
Yet in many cases, the preparation costs as much as the flooring itself.
Why?
- Uneven substrates: Decades of movement and patch repairs mean no two rooms are level.
- Vinyl or adhesive residues: Old coverings must be completely removed to ensure adhesion.
- Brick walls and skirting: Installers can’t use nail guns; they must screw every skirting board by hand, doubling installation time.
- Access issues: No lift? Each 20 kg box of flooring must be carried up flights of stairs — time that has to be budgeted.
3. Apartment Requirements and Underlay Approvals
In strata buildings, noise and compliance rules add another layer of complexity.
Most body corporates specify acoustic ratings for underlay — typically a 3 mm approved product achieving around 95 % of required sound reduction.
That underlay must be installed exactly to spec, with expansion gaps and moisture protection in place.
Skipping approvals can void warranties or even trigger a demand to remove the new floor — a costly mistake for owners and installers alike.
4. Tips for Cleaning and Maintaining New Floors
While stuck in Brisbane traffic, Roman shares a quick homeowner tip that’s worth noting:
- Use a timber-safe cleaner — any brand from Bunnings labelled timber floor cleaner will do.
- Avoid harsh chemicals; they can strip the factory wax or protective layer on new planks.
- Expect mild residue for the first few cleans — that protective coating wears off gradually after three to five washes.
- Always use a damp microfibre mop, not a soaked one.
Following these steps helps new floors settle in without streaks or build-up.
5. Case Study 1 – Clayfield Apartment
Inside an ageing Clayfield brick block, the team discovered a mix of old vinyl and uneven concrete beneath.
Stage 1 – Removal and Grinding:
All vinyl and adhesives were removed, exposing rough substrate. High spots were ground down.
Stage 2 – Levelling:
Two separate coats of self-levelling compound were applied, each left to cure overnight.
Stage 3 – Re-check:
Levels were verified again before any flooring was laid.
6. Case Study 2 – Hendra Renovation
The second project, a Queenslander extension in Hendra, shows another common challenge: matching new flooring to old timber.
Upstairs featured original pine boards, while the builder had added new pine in the extension.
Downstairs was being finished in engineered hardwood — already stained a deep chocolate tone at the factory.
The goal was to have the entire home flow seamlessly in colour, but achieving that required significant skill.
7. Knowing When to Say No
Perhaps the most valuable takeaway from the Hendra job is professional humility.
That philosophy protects both parties. Flooring that doesn’t match can’t be easily undone, and disagreements over colour tone or sheen are common in renovation projects.
Walking away from uncertain work preserves reputation and ensures every completed project meets expectations.
8. Why Dark Stains Help With Colour Matching
When blending different timbers — especially across levels — darker stains hide variation far better than light tones.
- Light stains reveal differences in grain and porosity.
- Dark stains unify the look and minimise contrast between new and old boards.
For homeowners extending older Queenslanders, going darker can make the renovation feel cohesive without the need for total floor replacement.
9. The Role of Builders and Collaboration
The Hendra builder demonstrated how cooperation simplifies flooring work.
By pre-cutting and tack-fixing skirting boards before flooring, they allowed installers to maintain proper 15 mm expansion gaps, then drop and nail the skirtings after installation.
Painters can then fill, sand and coat seamlessly — saving time and ensuring a neat finish.
It’s a small detail, but it shows how communication between trades prevents costly delays.
10. Lessons for Homeowners and Investors
- Budget for Preparation – Assume that old apartments will need extensive levelling and grinding.
- Check Access Early – Third-floor walk-ups without lifts add labour hours.
- Confirm Underlay Compliance – Always get written approval from your body corporate.
- Match Products by Supplier – Ordering flooring and nosings from different batches can lead to subtle colour mismatches.
- Choose Experienced Installers – Staining and blending different timbers is a specialist skill.
- Respect Professional Boundaries – If a trade declines part of the job, it’s likely in everyone’s best interest.
Proper levelling, moisture barriers and planning aren’t extras; they’re essential for a floor that looks perfect and lasts decades.
