Quick answer
A squeaking composite door is the hinges roughly 99% of the time, and a good silicone spray on the pivot points usually silences it within a minute. In the small remaining cases the noise comes from a seal rubbing rather than a hinge, which you can tell apart by checking whether the squeak happens at full open and close, or all the way along the door's travel.
Overview
Almost always the hinges. Spray silicone, work the door.
Symptoms
- Squeak on opening or closing.
Common causes
- Dry hinges.
- Occasionally a squeaky seal.
The fast diagnosis that saves a wasted repair
Because hinges account for the overwhelming majority of squeaking composite doors, the sensible first move is always a silicone spray on the visible hinge pivots followed by working the door back and forth several times. If the squeak disappears immediately, you've confirmed and solved the problem in under a minute with no further action needed. If it persists in exactly the same way after lubrication, or if the noise seems to travel with the door's edge along the frame rather than being localised at the hinge side, a rubbing weather seal becomes the more likely explanation.
This order of operations matters because hinge lubrication is quick, free (if you already have a can of silicone spray) and essentially risk-free, whereas investigating a seal issue takes more time and is worth ruling the simpler cause out first.
Why hinges are the default suspect
As covered in more depth on our noisy hinges page, the pin-and-bush interface inside every hinge relies on grease to keep metal surfaces from contacting directly, and that grease dries out over years of weather exposure and use. A composite door, being heavier than a timber or uPVC door of the same size, puts more load through this interface, which is part of why composite doors are somewhat more prone to developing an audible squeak over time than lighter door types.
The squeak is loudest and most noticeable specifically during the arc of opening and closing where the door's weight is most actively transferring through the pivot, which is why it's often described as happening 'on the swing' rather than when the door is static.
Salt air and Cornwall's particular squeak problem
Coastal properties see hinge squeaks return faster after lubrication than inland homes, simply because salt-laden air displaces and degrades lubricant faster than drier inland conditions. If you find yourself re-applying silicone every couple of months rather than the six-monthly interval that works fine for most homes, that's a reasonable sign the property's coastal exposure calls for either more frequent lubrication or an upgrade to hinges with better corrosion resistance built in.
It's a small, cheap-to-address issue if caught at the squeaking stage - the real cost of ignoring it long-term isn't the noise itself but the corrosion and wear that eventually follows if the dry, unlubricated state persists for years.
When persistent squeaking signals something bigger
If lubrication resolves the noise for only a day or two before it returns, this points to genuine hinge wear rather than simple dryness, similar to the pattern described for noisy hinges generally. In this case, repeated lubrication becomes a temporary mask rather than a fix, and the sensible next step is a hinge inspection to check pin and bush wear, since a worn hinge left in service for too long can eventually contribute to the door dropping or sagging.
Squeaking accompanied by any visible movement of the door, difficulty latching, or a widening gap at the top or bottom of the closing edge should be treated as more than a noise complaint and looked at promptly.
A sensible long-term routine
Treat squeak prevention as part of the same six-monthly hinge lubrication habit recommended for noisy hinges generally, and inspect weather seals visually at the same time for any obvious stiffening, cracking or perishing. Since both checks take only a few minutes and use the same visit to the door, there's little reason to separate them into different maintenance sessions.
How a persistent squeak differs from wear that needs replacing
Not every squeak is heading towards a bigger problem, but the pattern of the noise tells you which category you're in. A squeak that appears after a change in weather, particularly a cold snap or a very dry spell, and disappears completely after lubrication is typically just a hinge or seal reacting to conditions rather than genuine wear.
A squeak that returns within a week or two of lubrication, or that's accompanied by any resistance when opening or closing the door, suggests actual wear in the hinge pin or bearing surface rather than simple dryness, and continuing to just re-lubricate on a loop without addressing the underlying wear tends to delay rather than solve the problem.
Seals, weatherstrips and their contribution to noise
Hinges aren't the only source of squeaking or rubbing noise on a composite door - compression seals and weatherstrips around the frame can also produce a soft squeak or rubbing sound as the door closes, particularly if the seal has hardened with age or if the door has shifted slightly and is now compressing the seal unevenly.
Distinguishing a seal-related noise from a hinge-related one usually comes down to timing: a seal noise happens specifically at the point of closing, right at the frame, whereas a hinge noise happens throughout the swing of the door regardless of how close it is to the frame.
Coastal conditions and seal degradation
UV exposure and salt air both contribute to faster hardening of rubber and EPDM compression seals on coastal properties compared with sheltered inland locations, and a hardened seal is both noisier and less effective at keeping out drafts and water. If your squeak has developed alongside a noticeably stiffer-feeling seal around the door edge, that's worth mentioning, since seal replacement is a different job to hinge lubrication or adjustment.
We typically expect seals on exposed coastal properties to need replacement somewhat sooner than the door manufacturer's general guidance suggests, purely because of the combined UV and salt exposure most Cornwall coastal properties experience.
Booking a squeak or noise complaint
It helps to describe when the noise happens - throughout the swing of the door, only right at closing, or only in certain weather - since each pattern points towards a different cause and lets us bring appropriate stock. If you can identify roughly which hinge or area the noise comes from, that narrows things further before we arrive.
For holiday lets, a squeak reported by guests is often treated as a minor inconvenience, but a squeak that's actually early hinge wear left unaddressed across a busy season can develop into a heavier repair by the time the property is next available for maintenance access, so earlier reporting is genuinely worth encouraging among cleaning or changeover staff.
Typical repair costs in Cornwall
| Work | Typical price | Notes |
|---|---|---|
| Silicone hinge lubrication (self-service) | £0-£10 | Cost of a can of silicone spray, if you don't already own one |
| Professional hinge and seal inspection | £75-£100 | Where DIY lubrication hasn't resolved it |
| Seal replacement (section or full perimeter) | £90-£180 | Where a rubbing or perished seal is the cause |
| Hinge replacement (if wear confirmed) | £75-£140 per hinge | When lubrication no longer holds |
Guide prices only — we confirm the cost after seeing the door.
When to call a professional
- Persistent noise after lubrication.
Prevention
- 6-monthly silicone.
