Bathroom Renovation FAQ

Most bathroom renovations in Cairns range from about $18,000 for a compact refresh up to $65,000 or more for a full strip-to-stud renovation with custom joinery and premium fixtures. The final price depends on size, layout changes, waterproofing extent, tile choice and plumbing relocation. Always obtain a written fixed-price quote from a QBCC-licensed contractor before committing.

A mid-range bathroom renovation usually takes 4 to 8 weeks from strip-out to handover. Smaller refreshes can finish in 2 to 3 weeks, while luxury renovations with custom cabinetry or stone fabrication may extend to 10 weeks. Your contractor should set start and completion dates in the written Domestic Building Contract.

In Queensland, any residential building work over $3,300 including labour and materials must be carried out by a QBCC-licensed contractor and covered by a written Domestic Building Contract. Bathroom renovations that move walls, change drainage or affect waterproofing generally fall into regulated building work, so a QBCC licence is required.

The Queensland Home Warranty Scheme is compulsory insurance for residential building work over $3,300. The contractor pays the premium and it protects you against non-completion, defective work and subsidence issues. Structural defects are covered for 6 years and 6 months; non-structural defects for 6 months.

Yes. A bathroom refresh keeps the existing layout and updates surfaces, fixtures, vanity, tapware and lighting. It is faster and less expensive than a full renovation because plumbing and drainage stay where they are. A licensed plumber must still carry out any notifiable plumbing work and lodge a QBCC Form 4.

A full bathroom renovation typically includes demolition, plumbing rough-in and drainage changes, waterproofing, wall and floor tiling, fixture and vanity installation, lighting, ventilation and final certification. Custom joinery, freestanding baths and frameless shower screens can be added depending on budget.

Engineered stone containing 1% or more crystalline silica has been banned across Australia for manufacture, supply, processing and installation since 1 July 2024. Legal alternatives include porcelain or sintered stone, natural granite or marble, solid timber, stainless steel, laminate, and low-silica engineered stone under 1% crystalline silica. Existing pre-2024 engineered-stone benchtops are grandfathered.

It depends on the room size and who uses it. Family bathrooms often keep both; ensuite renovations frequently replace a rarely used bath with a large walk-in shower to maximise usable space. A good design consult will measure the room and suggest the layout that best suits your household.

Far North Queensland humidity makes ventilation essential. Use a correctly sized exhaust fan ducted outside, install a window that can be opened, choose mould-resistant paint and grout, and ensure waterproofing is continuous behind wall tiles. A squeegee after showering also helps reduce surface moisture.

Yes, but older Queenslander homes can have timber stumps, original plumbing and limited floor falls that affect drainage. Renovations in these homes often need extra care with waterproofing, subfloor access and compliance with current plumbing standards. A QBCC-licensed contractor with local experience can assess the specifics on site.

A QBCC Form 4 is a notice that a licensed plumber lodges with the QBCC within 10 business days of completing notifiable plumbing work. Most bathroom renovation plumbing, such as moving a toilet, shower or basin, is notifiable work, so a Form 4 should be lodged for your job.

Internal bathroom renovations that do not change the building footprint or load-bearing structure usually do not require council development approval. Work that alters structural walls, plumbing drainage or ventilation may need approval or certification through a licensed builder or private certifier. Your contractor will confirm what applies to your project.

A makeover refreshes surfaces and fixtures while keeping the layout the same. A renovation involves more extensive work such as removing walls, relocating plumbing, replacing waterproofing and re-tiling. Makeovers are faster and cheaper; renovations give you a completely new space.

Clear the bathroom and any nearby hallways, protect adjacent flooring with drop sheets, arrange alternative bathing facilities and confirm access times with your contractor. Store valuables away from the work zone and make sure pets and children cannot enter the construction area.

Yes. A walk-in shower with a frameless fixed panel and linear drain can make a small bathroom feel larger because it removes the visual bulk of a framed door or shower curtain. Careful waterproofing and falls to the drain are critical, so this should be installed by a licensed professional.

Beyond the QBCC statutory warranty, many reputable Cairns renovators offer a workmanship guarantee of 5 to 10 years. Manufacturer warranties apply to fixtures, tapware and tiles, typically 2 to 5 years. The exact terms should be written into your Domestic Building Contract.

Usually yes, but you will need alternative bathroom facilities while work is underway. Dust, noise and trades access can be disruptive for 2 to 6 weeks depending on the scope. Most homeowners stay on site for refreshes and move out temporarily for large strip-to-stud renovations.

Waterproofing is a membrane applied to wet-area floors and walls to stop water from seeping into the structure. In Queensland, waterproofing must comply with the Building Code of Australia and relevant Australian Standards. Failed waterproofing is one of the most expensive defects to repair, so it must be done by a licensed waterproofer.

Ask each contractor for a written quote that clearly lists scope, materials, labour, exclusions, start and completion dates, payment stages and warranty terms. Check that the contractor holds a current QBCC licence and that the quote is based on a site visit rather than a guess over the phone.

A well-planned bathroom renovation is one of the most reliable ways to increase a home's appeal and resale value, especially in family suburbs and near beaches. Buyers in Cairns look for clean, mould-free, well-ventilated bathrooms with modern fixtures and good storage.

Porcelain and ceramic tiles are the most popular choices because they resist moisture and are easy to clean. Large-format tiles with minimal grout lines reduce mould traps. Natural stone looks luxurious but needs sealing. Non-slip finishes are important on shower floors.

Signs include bubbling paint, swollen skirting boards, mould that keeps returning, loose tiles, musty smells and water stains on the ceiling below the bathroom. If you notice these issues, a licensed builder or waterproofer should inspect the room before any cosmetic work begins.

Electric underfloor heating can be installed under tiles, but in Cairns' tropical climate it is usually unnecessary and adds running cost. Most homeowners prefer effective ventilation, good lighting and fast-drying surfaces. Discuss climate suitability with your designer before specifying it.

Payment schedules vary by project, but a common structure is a small deposit, progress payments tied to milestones such as waterproofing and tiling completion, and a final payment on handover. Avoid contractors who demand full payment upfront. All payment terms must be written into the Domestic Building Contract.