Composite doors in Sennen, installed professionally.

Sennen faces west-north-west into open Atlantic with nothing but open water between it and the door — no headland, no bay, no offshore island taking the first hit of a swell before it reaches the coast. Whitesand Bay funnels a groundswell straight onto the beach below the village, and a winter storm here throws spray well beyond the shoreline and up over Cove Hill in a way that simply doesn't happen on a sheltered harbour a few miles round the coast. We've fitted doors in plenty of exposed spots, but Sennen is the one place on our patch where we treat every single survey as a worst-case exposure assessment by default, rather than deciding case by case whether the heaviest spec is warranted.

That means A4 marine stainless fixings throughout, a drainable stainless-clad threshold with a bedded weatherbar, and a compression seal on the full perimeter of the frame rather than just the closing edge. We also fit the multi-point lock with its tightest closure adjustment as standard here, because a door that's even slightly loose in its keeps will work and flex under sustained onshore wind pressure in a way it wouldn't fifty miles inland. None of this is guesswork — it's what we've learned from refitting doors in Sennen that were specified for an ordinary coastal property and didn't last.

The two halves of Sennen behave differently enough that we treat them as separate specifications rather than one blanket approach. Down at the Cove, properties along Cove Hill and around the lifeboat station and harbour sit right at sea level with almost no windbreak at all, taking spray directly off the beach on any westerly blow — these are the doors we'd put at the very top of our exposure scale anywhere in Cornwall. Up in the village itself, around the church and along the road toward Trevescan and Mayon, properties sit higher and further back from the shore, still exposed to serious wind but without the direct salt spray hitting the door face on a daily basis.

The practical difference shows up in maintenance interval as much as in initial spec: a Cove Hill door benefits from an annual check of the seals and hardware given the sheer frequency of salt exposure, where a village property further back might reasonably go two or three years between checks. We tell customers this honestly at survey rather than selling the same service plan to every Sennen address regardless of exactly where it sits.

Whitesand Bay is one of the most popular surf beaches in Cornwall, and Sennen's housing stock reflects that — a high proportion of holiday lets and second homes alongside the permanent village community, with the Cove especially skewed toward properties that stand empty for stretches outside the summer season. An empty coastal property gets no chance for a small fault to be caught early, and on this stretch of coast a small fault becomes a real one fast. We recommend a heavier-duty seal specification as standard on any Sennen holiday let, and where we know a managing agent handles the changeovers, we'll talk them through a simple visual check of the door face and threshold at each visit — nothing technical, just eyes on the door often enough that a problem gets caught in weeks rather than months.

The tourist season also affects access and timing more than in a purely residential village — Cove Hill and the car park approach get genuinely busy through summer, and we plan Sennen installs for the shoulder seasons or quieter weekday slots where a customer's own schedule allows it, simply because manoeuvring materials down to a Cove-facing property is easier without holiday traffic queuing past.

Sennen's exposure isn't purely a salt-water problem — the beach itself throws a huge amount of fine sand into the air on a dry, windy day, and that sand finds its way into door thresholds, seals and lock mechanisms in a way that a purely rocky or harbour-based coastal village doesn't experience to the same degree. We've opened up standard door thresholds on Cove-facing properties and found genuine sand ingress packed into the drainage channels, which over time can block the very drainage a threshold relies on to shed water. Our drainable threshold detail on Sennen doors is specified with wider drainage channels than our standard coastal spec for exactly this reason, so sand doesn't sit and compact in the same way it would in a narrower channel.

We also recommend, informally rather than as a chargeable service, an occasional rinse of the threshold and lower seal with fresh water on the most exposed Cove properties — not because the composite material needs it, but because clearing accumulated sand and salt residue from the drainage channel keeps it working as designed. It takes two minutes with a garden hose and it's the single easiest thing an owner can do to extend the working life of the door's weatherproofing.

Sennen's exposed, open aspect means colours take a battering from UV as well as salt — this is one of the sunniest stretches of coast in Cornwall precisely because there's nothing blocking the light, and a poorly specified finish can fade visibly within a few years here. The Endurance range's factory-baked colour holds up well against this combination of salt and UV exposure, and we see Anthracite Grey, Black and a cool Slate Grey doing well against the pale render and stone common in the village, while Cove properties more often go for Black or a deep Blue that reads well against sea and sky.

We see relatively few pale or pastel colours chosen in Sennen, less because of any planning restriction — there's no conservation-area designation covering Sennen in the way there is in Mousehole — and more because owners here have generally already seen how quickly a pale render or paint job needs attention in this light and exposure, and choose a door colour that won't show the same fading.

Cove Hill is steep and, at its lower end, narrow enough that a full-size van struggles to get right to the door on some properties, particularly in summer when parking along the approach is at a premium. We plan Cove installs with a similar hand-carry contingency to a Mousehole job — materials brought as close as a van can manage and carried the final stretch — and we check the tide and surf forecast alongside the wind forecast, since a big swell can put spray across the lower part of Cove Hill even on a day that looks calm from the village above.

Properties in the village itself, around the church and toward Trevescan and Escalls, generally have straightforward van access comparable to any Cornish village street, and installs there run to a standard single-day schedule without the additional access planning the Cove requires.

Fitted prices at Sennen sit within our standard £1,395–£2,895 range, but because our heaviest coastal specification — full marine fixings, drainable wide-channel threshold, full-perimeter compression seal — is fitted as standard rather than optional here, Sennen quotes tend to sit toward the middle and upper part of that range even for a relatively plain door. We think that's the honest position rather than quoting a lower headline figure on a door that won't survive Whitesand Bay's weather. The 10-year guarantee applies in full regardless of which part of Sennen you're in, Cove or village.

Because Sennen sees the heaviest weather on our books, we get asked more often here than anywhere else how long a composite door will actually last before it needs attention. The GRP skin and foam core don't degrade the way painted timber does, but the moving parts — hinges, the multi-point lock gearbox, the seals — are mechanical, and mechanical parts wear faster under constant salt and sand load than they would inland. Our honest answer is that the door itself will comfortably outlast its guarantee period, but the hardware benefits from an occasional check, and we'd rather tell customers that plainly than let a genuinely excellent door get a bad reputation because a seal wasn't replaced when it should have been.

We keep a simple maintenance note with every Sennen quote setting out what to look for — stiffness in the key, a seal that's lost its spring, water pooling rather than draining at the threshold — and when to call us rather than wait. It costs nothing and it's the difference between a ten-minute adjustment and a full seal replacement two winters down the line.