How does the lock in a uPVC or composite door actually work?
The hooks, rollers, gearbox and keeps that make up a multipoint lock, what the handle does that the key does not, and why that distinction explains almost every fault.
Fixing the things that break — taps, handles, holes, hinges.
553 guides in Home & DIY
The hooks, rollers, gearbox and keeps that make up a multipoint lock, what the handle does that the key does not, and why that distinction explains almost every fault.
Both sound hollow, both are plasterboard on the face, and they need opposite fixings. The tests that separate them, what dot and dab actually is, and why builders use it.
A soft patch is not the same as a bouncy floor. It is a local loss of strength with a short list of causes, and finding which one decides whether it is a board repair or a structural job.
The four different things sold as a guarantee, which of them survive the trader going out of business, and what to read before relying on any of them.
The three policies that matter on a domestic job, the gap none of them fills, and the call to your own insurer that people forget to make.
The four things that have to match on a replacement concealed hinge — overlay, crank, plate height and opening angle — and how to read them off the hinge you already have.
A door that will not stay put is almost always out of plumb, and the direction it swings tells you which way. It is usually fixed at the hinges rather than the frame.
Why an electric shower runs cold after a few minutes or shuts down entirely, which causes you can safely check, and the point at which it becomes an electrician's job.
The lock is doing its job in almost every case: it holds for a cooling or safety delay, it holds while there is water in the tub, and it holds if the drum has not fully stopped.
The real weight of what goes on shelves, the five-link chain the load travels through, and which link actually breaks.
Finding and sealing draughts around windows, and what to do when the seal or the hinge adjustment is the problem.
A screw that spins has stripped the material around it. In plasterboard that means the board has crumbled; on a stud it means the timber has been over-driven or the hole is too big.
Four causes, three of which are things in the cavity rather than the appliance — and the one that means the microwave is finished.
Timber takes up moisture from the air and expands across its width. A door that binds only when it is damp is behaving normally, and the durable fix is sealing rather than planing.
Why airlocks form in gravity systems and not mains ones, the hose-between-taps method that clears most of them, and how to do it without creating a backflow risk.
Choosing a method that survives seasonal movement, and why rigid filler always cracks out.
Why it failed, and the three ways to make the new fixing stronger than the original.
Diagnosing runner damage against overloading, and replacing a runner without guessing the size.
Finding where a radiator is leaking, the temporary fixes that hold, and when it needs a plumber.
What can genuinely be repaired, the wax and marker options, and when a board swap is the only real answer.
Fitting a multi-shelf run level and square, choosing bracket spacing that stops shelves sagging, and load ratings.
The profile you need depends on the height difference and whether both floors move. Getting the fixing method right matters as much as choosing the strip.
The six dimensions every supplier will ask for, where each is taken from, and why two locks with the same length can still be completely different parts.
The three measurements that decide what fits, how to pick a shape that does not overhang, and getting a new seat on without cracking anything.
Material properties, comparisons and suitability — paints, fillers, sealants, timber, tile, insulation.