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DIY library / Room 02

Bathroom DIY repair guides

Bathrooms punish guesswork. Identify the finish, control moisture and use the mildest method that solves the problem without bleaching grout or damaging plated fittings.

10 published guides

Choose the problem

Start with what you can see.

Open the closest match, confirm the surface, then follow the photographed sequence in order.

Close-up of white silicone sealant along a shower tray edge with black mould spots visible

Guide 2.1

Black Mould on Shower Silicone: Safe Removal Without Damaging the Seal

Clean a small patch of surface mould from intact shower silicone with detergent and water, then learn when stained or failed sealant needs replacement.

5 min read Read guide
Overhead view of a toilet bowl with a brown mineral ring visible around the waterline before treatment.

Guide 2.5

Brown Ring in the Toilet Bowl: A Glaze-Safe Cleaning Method

Remove a brown toilet-bowl ring with a fixture-approved hard-water cleaner and a nylon bowl brush, without overnight acid or abrasive pumice.

4 min read Read guide
Half of a shower glass door showing cloudy limescale on the left side and clear glass on the right side after cleaning

Guide 2.3

Cloudy Shower Glass: A Finish-Safe Hard-Water Cleaning Method

Clean cloudy shower glass with mild detergent, a soft cloth and maker-approved care while protecting coatings, hardware, seals and adjacent stone.

5 min read Read guide
A chrome shower head with visible mineral scale and an uneven spray pattern in a naturally lit bathroom.

Guide 2.2

How to Descale a Shower Head and Get Your Water Pressure Back

Restore an uneven shower spray with non-chemical nozzle cleaning first, then use only the removal and descaling method approved for the exact model.

5 min read Read guide
Comparison of chrome bathroom tap before cleaning with water spots and after cleaning with bright reflective shine

Guide 2.6

How to Make Chrome Taps Shine Like New in 10 Minutes

Clean intact chrome taps with mild dish soap, water and soft cloths, then dry immediately to reduce fresh spots without acids or abrasives.

5 min read Read guide
Before and after view of a bathroom shower corner showing darkened grout lines transformed to white clean grout.

Guide 2.4

How to Whiten Shower Grout — The Full Method

Brighten intact shower grout with a manufacturer-approved neutral cleaner, a soft hand brush and clear stop conditions for failing grout or natural stone.

5 min read Read guide
Interior of a cistern tank showing the flapper, fill valve and overflow pipe in a modern toilet

Guide 2.10

Loose Toilet Seat Fix and a Safe Running-Toilet Check

Tighten compatible exposed toilet-seat hardware and use a non-invasive dye and visual check to identify a running cistern before model-specific service.

5 min read Read guide
Contemporary windowless bathroom interior with ceiling extractor fan grille visible, squeegee leaning against wet shower glass, corner showing towel rail and moisture absorber container in soft natural daylight.

Guide 2.8

Musty Smell in a Windowless Bathroom: The Ventilation Routine

Check a windowless bathroom for leaks, visible growth and fan faults, then measure humidity and use working outdoor-vented extraction to control moisture.

5 min read Read guide
Close-up of a rust-coloured stain on white ceramic bathroom tile with water droplets.

Guide 2.9

Remove Rust Stains from Bathroom Tiles Safely

Remove a rust-transfer stain from identified glazed ceramic or porcelain tile with a tile-maker-approved product, without treating active corrosion or unknown stone.

3 min read Read guide
Plastic drain hook tool with extracted hair ball beside shower drain opening.

Guide 2.7

Slow Bathroom Drain: Remove Accessible Hair With a Plastic Hook

Use a flexible plastic drain hook for visible hair near an accessible opening, with strict chemical, contamination and shared-drain stop conditions.