What is the difference between MDF, plywood and chipboard?
Three boards that look interchangeable in a merchant and behave completely differently once wet or loaded.
beginner15 min2 min read
Home & DIY
Practical answers for repairs, cleaning, decorating and the household problems that turn up whether you planned for them or not. Written so you can start with what you already own.
2,154 guides
What is the difference between a programmer, a room thermostat and a TRV?
Three controls that each decide something different, why none of them can override the one before, and what that means when a room is cold.
beginner20 min3 min readWhat should I check around the house in spring?
The annual walk round that finds winter damage while it is still small and cheap.
beginner3 hr2 min readWhy are large tiles so much harder to lay?
A big tile cannot bridge an uneven wall, cannot be adjusted once it grabs and needs full support underneath. Everything that is forgiving about a small tile stops being forgiving.
advanced30 min3 min readWhy are my windows wet every morning?
What morning window condensation actually indicates, whether it matters, and the changes that reduce it.
beginner20 min2 min readWhy can I see brush marks and roller marks?
Paint that sets before it can level, and the four things that cause it.
beginner20 min2 min readWhy do my lights flicker?
Which flickers are a cheap bulb problem and which mean a loose connection that needs an electrician.
beginner20 min3 min readWhy does my bathroom smell of sewage?
The dry trap that causes most of it, the other four causes in order of likelihood, and what needs a professional.
beginner45 min4 min readWhy does my dishwasher leave a white film on glasses?
Two completely different faults look identical: limescale, which comes off, and etching, which is permanent. One test separates them and the treatment is different for each.
beginner30 min4 min readWhy does my drill bit just spin without going into the wall?
Six causes in the order they are worth checking, from the settings on the tool to the moment you have found steel and should stop.
beginner10 min4 min readWhy does my extractor fan not clear the steam?
Blocked, undersized or venting into the loft — three causes, and the paper test that identifies the first in seconds.
beginner40 min2 min readWhy does my fridge freeze everything?
Thermostat setting, where things are placed, and airflow — three causes, and the food itself is often the clue.
beginner30 min2 min readWhy does my oven not heat up at all?
An ordered diagnostic that separates no power, no heat on one setting, and no heat on any setting — and reaches the answer before you pay a call-out fee.
beginner30 min4 min readWhy does my washing machine not spin?
A machine that will not spin is nearly always telling you it cannot drain, cannot balance, or was never asked to — and those three account for the large majority before any part has failed.
beginner40 min6 min readWhy is upstairs so much hotter than downstairs in summer?
Three separate mechanisms make the top of a house hotter than the bottom in summer, and only one of them is the one everybody names. Which applies to you decides what actually helps.
beginner10 min5 min readWhy is water leaking onto the floor outside my shower?
The three tests that separate spray escape from a seal failure from a tray or waste leak — done in an order that costs nothing before anything is taken apart.
beginner1 hr5 min readHow do I clean shower glass?
How to clear the cloudy film from a shower screen and keep it clear with a thirty-second habit.
beginner30 min2 min readHow do I fit a smoke alarm?
Where smoke and heat alarms should go, how to fit a battery model, and when interlinked alarms are required.
beginner30 min2 min readHow do I gloss a panel door without lap marks?
A panel door is glossed in a set order for a reason: it keeps every join between sections wet, so no lap marks form. The order is the whole technique.
intermediate1 hr 30 min3 min readHow do I insulate a loft hatch?
An uninsulated hatch is a hole in an otherwise insulated ceiling, and it is one of the cheapest gaps in a house to close properly.
beginner1 hr2 min readHow do I paint a staircase without making it slippery?
The finish on the treads is a safety decision, not a decorating one. Everything else about painting a staircase is ordinary woodwork with an awkward access problem.
intermediate5 hr2 min readHow do I reduce draughts?
Where household draughts actually come from, and how to seal them cheaply without blocking the ventilation a house needs.
beginner3 hr2 min readHow do I repressurise a boiler?
Bringing a combi boiler back to the right pressure using the filling loop, and what a repeatedly falling gauge is telling you.
beginner15 min2 min readWhat do I do when the electrics trip?
How to safely reset a tripped consumer unit and identify which appliance caused it — and when to stop and call an electrician.
beginner20 min3 min read
Going deeper: MaterialWorld
Material properties, comparisons and suitability — paints, fillers, sealants, timber, tile, insulation.
MaterialWorld is in development — GuideHQ covers the practical answers in the meantime.