Pro-Lock · Kent
Bifold door repair in Folkestone — drainage and threshold pooling
Bifold doorsets are not all built the same way, and it is the arrangement rather than the badge that decides how a fault behaves. Some systems hang the panels from a head track; others carry them on bottom rollers in the threshold, with the head track guiding rather than supporting. Which one a doorset uses is something the assessment establishes, because it changes what water in the threshold actually means.
In Folkestone the fault that comes up most is water sitting in the threshold after rain rather than draining away. Standing water is worth taking seriously on a bifold: the bottom channel carries the running gear, so anything pooling there sits against rollers that are meant to stay clean and dry.
Local fault emphasis
Pooling in the threshold: why Folkestone doors hold water
An external bifold threshold is designed to manage water rather than to be waterproof. It relies on a drainage route — slots, channels and falls built into the profile — and that route has to stay clear to work. When debris collects in it, or the threshold has settled so the fall no longer runs the way it was designed to, water stops moving and starts sitting.
What makes this more than a nuisance is where the water collects. It usually gathers in the same low section of the channel, which is often where a roller travels, and prolonged contact accelerates wear on the running gear and marks the profile. The assessment checks the drainage path and the track condition together, then looks at why the water is arriving faster than the channel can clear it.
Brands fitted locally
Bifold systems we assess across Kent
Bifold doors across Kent are fitted with hardware from a wide range of systems, and the components inside a doorset are frequently a mix rather than a single brand. The guides below cover the systems we are asked about most often, and each sets out how that manufacturer's running gear, locking and sealing details behave, and what tends to fail first.
Local conditions
Local conditions in Folkestone
Folkestone is effectively on the coast, about half a kilometre from the sea. Its mean wind speed is about 6.63 m/s, against a range of 4.96 m/s at the most sheltered locations we cover to 6.63 m/s at the windiest. Its seasonal temperature range runs from about 3.6°C to 20.4°C, a spread of roughly 17 degrees.
Folkestone sits on the southern edge of the North Downs, in a valley between two cliffs.
Pro-Lock repairs bifold doors; we do not sell new ones. That matters more than it sounds. A company that fits replacement doorsets has somewhere to send a problem a repair would have solved, and a recommendation is only as independent as the person giving it. We have nothing to upsell you, so the honest answer is also the only one available to us: if your doorset can be repaired, that is what we will quote for. Every assessment ends in a written report and an itemised quotation, the repair is booked separately and only if you decide to go ahead, and completed work is backed by a 12-month warranty.
Complete doorset overhauls may help where frame distortion exceeds tolerances or panel realignment cannot compensate; read the full explanation ↗
Toe and heel is checked when appropriate as part of alignment; understand toe and heel ↗
A clear first step
£79 professional assessment, credited against any repair, or refunded if we cannot quote. 12-month warranty on completed repair work.
Why do you charge £79 for an assessment when some companies offer free quotes?
An experienced engineer checks the complete doorset, explains the findings, and sets out the sensible repair route. Read the full explanation on the FAQ ↗