UPVC Door Repairs Crawley
Local repairs for faulty locks, dropped doors, draughts, handles and door furniture.
Sussex Double Glazing Repairs provides UPVC door repairs for homeowners, landlords and property managers throughout Crawley. We assess faults affecting UPVC and composite doors, including patio, French and bi-fold doors, and repair or replace the affected components where suitable.
For specialised UPVC door repairs all over Crawley, contact Sussex Double Glazing Repairs at 07881 407 764. We realign doors, seal draughts, mend broken locks, replace handles/hinges and perform all other maintenance as needed.
Door Lock Repairs in Crawley
The locking mechanism found on UPVC and Composite doors including Patio, French and Bi-Fold doors is called a multipoint lock. Failure is either alignment-stressing the gears or cumulative wear/tear. At Sussex Double Glazing Repairs we carry various replacement locks, often servicing issues promptly as a result.
Otherwise, we temporarily secure the property while awaiting delivery of the required special lock model. We replace equally dysfunctional cylinders and keys.


Door Realignment / Dropped Door
Misaligned doors contribute majorly to multipoint lock issues from routine operation. The latching hardware keeps losing critical synchronisation as positioning suffers. Components then endure increasing strain before ultimately cracking under the pressure.
To preserve expensive lock mechanisms, Sussex Double Glazing Repairs realigns doors via calibrated hinge tweaks, keeps resets, and general door rehangs.
Get a quote or call us on:
Door Handles
After prolonged use spanning years typically, door handles will often begin feeling unresponsive and drooping – marking eventual mechanical failure. While expedited remedies are occasionally viable, handling replacement frequently becomes mandatory to preserve home protection before total breakdown transpires.
For properly fitted handles tailored to your distinct multipoint lock, phone-trusted experts Sussex Double Glazing Repairs promptly when sluggishness arises. This averts emergency locksmith charges later.


Draughty Doors
Doors letting in cold air or moisture probably have compromised seals. Numerous seal types and sizes are available – some challenging to obtain and fit. While our vans carry numerous universal seals, we’ll also order correct custom parts as needed.
Call Sussex Double Glazing Repairs to restore full weatherproofing.

Door Furniture
We can replace your old or faulty door furniture.
- Door Knockers
- Letterplates
- Finger pulls
- Numbers
- Handles & Knobs

Why property owners in Haywards Heath choose Sussex Double Glazing Repairs
City & Guilds Qualified
Police Clearance and DBS
Workmanship Guarantee
£5m Public Liability Cover
What To Expect
1.Tell us the window fault
Describe the problem, such as draughts, leaks, a broken handle, a stuck window or a lock that will not engage.
2. Diagnosis of the likely failed component
We assess whether the issue is likely to involve hinges, friction stays, espag mechanisms, handles, seals, gaskets or the glass unit.
3. Repair recommendation and quote
You receive advice on whether the window can be repaired or whether another option, such as glass unit replacement, is more appropriate.
4. Replacement of failed parts
The work is carried out using quality materials and proven repair methods.
5. You regain security, efficiency, and smooth operation
The goal is a repair that improves day-to-day function as well as appearance.
Common UPVC Window Faults We Repair
Many UPVC double glazed window problems are caused by worn hardware, failed seals, or broken locking components. The table below explains common symptoms, likely causes, and the most suitable repair.
| Window Problem | Likely Cause | Typical Repair |
|---|---|---|
| Draught around the sash | Failed hinge, worn friction stay, damaged seal or gasket | Replace hinge, friction stay, seal or gasket |
| Window will not close tightly | Worn hinge, failed friction stay or poor sash compression | Hinge or friction stay replacement |
| Handle turns but window will not open | Failed espag mechanism or disconnected locking strip | Open the window safely and replace the espag mechanism |
| Window is stuck shut | Broken lock, failed espag mechanism or damaged handle | Specialist opening, diagnosis and replacement of failed parts |
| Handle is loose, broken or jammed | Failed handle, worn spindle or damaged internal mechanism | Replace the window handle and check lock operation |
| Moisture or air entering around the frame | Perished gasket, compressed seal or poor sash alignment | Replace seals or gaskets and check hinge alignment |
| Condensation between the glass panes | Failed sealed double glazed glass unit | Replace the sealed glass unit if required |
FAQs
Usual complications with UPVC doors involve sticking doors, draughts due to poor sealing, broken or jammed locks, colour fading from sun exposure, and faulty door mechanisms.
Fixing a UPVC door typically involves addressing specific problems like realigning the door or replacing a faulty lock. Installing a new door is a comprehensive process that includes removing the old door, preparing the frame, and fitting the new door, often resulting in a significant upgrade in appearance and security.
Mending a cracked UPVC door is feasible in many cases. Small cracks can be filled with UPVC repair kits, whereas larger cracks might necessitate a more complex repair by a professional to ensure the door remains secure and functional.
If the lock on your UPVC door isn’t functioning correctly, try using a lubricant on the lock mechanism, ensure the door is properly aligned, and check for any worn or damaged parts. If these steps don’t resolve the issue, professional help may be needed.