Door Repairs & Maintenance

5 Star Reviews

practical fixes that restore security, stop draughts and keep doors running smoothly

Door repairs & maintenance

Not every tired or awkward door needs replacing. A well-planned door repair can cure stiff handles, sagging hinges, rattling panels and draughty thresholds — restoring smooth operation and security for a fraction of the cost of a new set. From rapid uPVC door repair to glazing cassette swaps, lock upgrades and weather-seal replacements, we diagnose the real cause and fix it cleanly, with honest advice if replacement would be better value.

A good repair is all in the detail: accurate diagnosis, the right parts, true frames, calibrated hardware and clean, continuous sealing. Get those right and you’ll feel the difference the same evening — a quieter hall, a positive “clunk” on close, no light around the seals, and a lock that turns without a wrestle.

Common door problems we fix every week

Door lock/hinge repair: misaligned keeps, worn gearboxes and tired hinges make handles heavy and doors sag — we reset, replace and recalibrate.
Patio door repair: gritty tracks, dragged rollers and drifting panels; we clean, re-set heights, replace running gear and re-seal perimeters.
French door repair: rebating issues, meeting-stile gaps and shootbolt misalignment; we adjust, re-pack and restore compression.
Composite door repair: dropped slabs, swollen weatherseals and latch mis-bites; we re-hang, realign and fine-tune hardware.
uPVC door repair: replace worn hinges and handles, swap failed double-glazed cassettes, renew perished gaskets and tidy thresholds.
Security upgrades: anti-snap cylinders, hinge bolts and laminated safety glass where you need extra protection.

If a fix won’t last, we’ll say so — and show you the numbers so the decision is simple.

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How we diagnose — fix causes, not symptoms

Great outcomes start with calm diagnosis:

Check frame squareness, hinge positions and packer support (sag often starts here).
Test multi-point locking engagement and set keeps to the correct depth.
Inspect brush stacks, compression seals and threshold ramps for draught paths.
Assess rollers and tracks on sliders for wear, dirt and adjustment range.
Identify gearbox and spindle wear in handles before they jam outright.
Confirm glass unit health: misted cassettes, blown seals or loose beads.

You’ll get a clear explanation, photos if useful, and an itemised quote before we lift a tool.

uPVC door repair — what’s typically involved

uPVC doors are robust workhorses, but hardware and seals do age. A typical uPVC door repair might include:

Removing the slab to change friction hinges or flag hinges as a pair for symmetry.
Re-packing at hinge and lock points to stop drop and restore clean closing lines.
Resetting striker keeps so the multi-point lock engages lightly and securely.
Swapping flattened gaskets and dressing a new, continuous perimeter seal.
Re-glazing and toe-and-heeling large cassettes so weight doesn’t pull the door out of square.

The result is a door that shuts sweetly and seals like it should.

Composite door repair — solid feel, fine-tuned

Composite slabs can feel “off” when hinges drift or thresholds settle. Our composite door repair includes:

Re-hanging to recover even gaps and proper compression at the weatherseal.
Gearbox and handle replacement where internal wear causes a grinding turn.
Letterplate draught control adjustments and brush-stack renewal.
Sidelight/cassette resealing using warm-edge units where required for better edge temperatures.

You keep that premium, confident close — without buying a new door.

Patio door repair — glide, don’t grind

Sliding sets need clean tracks and calibrated rollers. For patio door repair we:

Vacuum, de-grit and de-oxidise tracks; set roller heights for parallel travel.
Replace worn bogies/running gear and adjust interlocks to stop panel drift.
Renew brushes and compression seals at meeting stiles and head details.
Check cylinders, hook-locks and keep plates for positive engagement.

Expect fingertip glide and tight seals — even on wide panels.

French door repair — slim lines, strong close

Pairs often lose alignment at the meeting stile. Our French door repair focuses on:

Shootbolt synchronisation so top and bottom bolts throw fully without forcing.
Re-packing sashes to recover equal sightlines and closing pressure.
Resealing rebates and replacing crushed gaskets for draught control.
Checking threshold drop and adjusting to keep water outside, where it belongs.

Your doors open wide in summer and close tight in winter.

Draughts & leaks — where the heat goes (and how we stop it)

Small gaps cause big bills. We tackle energy leaks by:

Replacing perished seals with profile-matched gaskets for consistent compression.
Resealing perimeters internally (airtightness) and externally (weathering).
Setting thresholds correctly and adding end caps to stop wind-driven rain.
Levelling slabs and frames so brush stacks actually meet.

A 10-minute smoke-pencil test often shows the difference immediately.

Request a free home survey and quote for new windows or doors

Glazing cassette and panel swaps

If the door looks fine but the glass has misted or cracked:

We measure unit size, spacer thickness and coatings precisely.
Supply an A-rated replacement (privacy/solar/acoustic options available).
Re-bead cleanly, reseal and check for airtightness and smooth lock action.

Fast, tidy and transformative for looks and insulation.

Repair vs replace — honest guidance, clear numbers

Choose repair when issues are local: a failed gearbox, one tired hinge set, a misted unit, or seals past their best.
Choose replacement when the frame is distorted, multiple panels have failed, or safety/ventilation requirements can’t be met with the existing set.

We’ll price both routes when it’s borderline, so you can decide with confidence.

Our repair process — simple, tidy, traceable

Assessment & quote — On-site diagnosis, photos if useful, and an itemised proposal.
Parts matched exactly — Correct hinge stack height, gearbox model, cylinder length, gasket profile and sealed-unit spec.
Tidy on-site work — Floors protected; components swapped; frames realigned; seals dressed with clean, consistent beads.
Testing & handover — We check lock engagement, compression and smooth travel, then share care tips.
Aftercare — Need a bedding-in tweak? We’re easy to reach and quick to respond.

What affects the cost of a door repair?

Part type and quality (rollers, hinges, gearboxes, cylinders, sealed units)
Door style and size (sliders and French sets take longer than singles)
Access and location (upper floors, tight side returns)
Upgrades added during the repair (e.g., anti-snap cylinders, laminated glass)

You’ll always receive a clear, itemised figure before we start.

Preventative maintenance — five-minute habits that add years

Wipe frames/skins with a mild solution; avoid abrasives that scuff seals.
Lightly oil hinges, locks and key moving points twice a year.
Vacuum slider tracks and keep threshold channels free of grit.
Check brush stacks and compression seals; replace if they flatten.
If handle force creeps up, call us early — small adjustments prevent wear.

Ask about an annual maintenance visit if you prefer a professional eye.

Request a free home survey and quote for new windows or doors

FAQs — quick answers about door repair

Can you repair any brand of door?

In most cases, yes. We carry universal and brand-specific parts, and source discontinued items where possible. If a system is truly obsolete, we’ll propose compatible alternatives or a cost-effective replacement.

Will a repair fix winter draughts?

Usually. Many draughts come from crushed gaskets, mis-set thresholds or keeps that don’t pull the slab tight. We address these and reseal the perimeter to restore compression.

How long does a typical repair take?

Lock/hinge jobs are often under an hour per door; glass cassettes are usually two visits (measure, then fit).

Is emergency securing available after a break-in?

Yes. We can secure the opening, replace cylinders and arrange follow-up door lock/hinge repair or panel replacement.

Will a darker coloured uPVC or composite door fade?

Modern foils and skins are UV-stable. With simple care (no harsh abrasives) deep tones keep their colour for years.

When a small fix prevents a big bill — signs to call sooner

Handle needs a shove to lock, or you hear a grind.
Visible light around the door edge, or a whistle in wind.
Slider panel that won’t stay put or feels gritty on travel.
Water pooling at the threshold after rain.
Fog between panes in glazed cassettes.

Catching these early avoids worn gearboxes, warped slabs and swollen thresholds.

Ready to get your doors closing sweetly and sealing properly again?

Send us a photo and a quick note about the symptoms — stiff handle, gap at the hinge side, noisy slider, misted panel — and we’ll reply with repair options and a clear estimate. Prefer a chat?

Call 0800 233 5576 and speak directly with a repair specialist.

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