Handyman Service in Perivale

Sliding patio doors onto a long rear garden were fitted in enormous numbers across the interwar and post-war housing in UB6, and a great many of them are now thirty or forty years old. The complaint is almost always the same: the door has become heavy, it judders halfway across, and eventually somebody starts using the back door instead. That is a mechanical fault with a straightforward remedy, not a reason to replace the whole thing.

How a sliding door carries its weight

The moving panel hangs on a pair of wheeled carriages running along a metal capping in the bottom frame. All of the weight, including a heavy sealed glass unit, sits on four small wheels. Grit blown in from the garden acts as a grinding paste; the wheels flatten, the bearings seize, and the panel then drags on the frame rather than rolling on it. Every additional kilo of effort is being applied to a mechanism already failing, which is why doors go from stiff to unusable quite quickly.

Diagnosing before dismantling

A panel that is heavy along its whole travel usually has worn wheels. One that binds at a single point normally has a dented or lifted capping, or debris in the channel. A panel that has dropped at one end and catches on the frame corner is out of adjustment rather than worn out. Lifting the panel slightly with a pry bar and seeing whether it suddenly runs freely is a quick test that separates the wheel problem from the frame problem before anything is taken apart.

Taking the panel out safely

A sliding panel with a double-glazed unit in it is heavy and awkward, and it is removed by winding the carriages fully down, lifting the panel into the upper channel and swinging the bottom clear. That requires two people and a clear floor on both sides. Glass is stood on timber battens, never directly on paving, and never leaned at a shallow angle where it can slide. Most of the damage done during this sort of repair happens in the ten seconds the panel is being manoeuvred.

Replacing the carriages and setting the door up

Replacement carriages are matched by measuring the existing unit rather than by the door manufacturer's name, which is frequently no longer traceable. The channel capping is cleaned out and, if it has lifted or dented, replaced, because new wheels on a damaged capping will fail again. Once the panel is back in, the height at each end is adjusted so the panel is parallel to the fixed frame along its full height, then the interlock is checked so the two panels meet cleanly and the lock engages without being forced.

Weepholes, seals and why the frame fills with water

The bottom frame of a sliding door is designed to collect water and let it out through small weepholes to the outside. When those block with moss and grit, the frame holds standing water, the channel corrodes and water eventually finds its way over the internal upstand and under the floor covering. Clearing the weepholes is a five-minute job that is almost never done. Where water has been getting in for some time, the floor and the wall at the threshold need proper attention from what the service covers. Gaps in a corroded frame or a perished seal also make an easy entry point at ground level, and evidence of that belongs with pest control services in Perivale.

Brush seals, locks and the rest of the door

The brush pile seals around the panel edges compress and stop sealing long before they look worn out, and replacing them makes a noticeable difference to draughts and to noise from a garden. The hook lock in an older sliding door often only needs the keep repositioning once the panel height has been corrected. An anti-lift block fitted in the top channel prevents the panel being lifted out from outside, which is worth adding on any older door.

What the repair visit involves

Most sliding door repairs are a half-day, with the carriages identified on a first visit if the door is an unfamiliar system and fitted on a second once parts arrive. Photographs of the bottom frame, the panel edge and any markings on the existing wheels shorten that considerably. Charging is for time plus parts, and clear space of around a metre on both sides of the opening is needed so the panel can be lifted out without hurrying. Similar door work in the neighbouring district is covered by Fantastic Services, and the fuller range of repairs is listed on same-day handyman service.