Window Lock Repair
If your uPVC window won’t lock properly or stay closed, professional window lock repair can diagnose whether it’s due to alignment issues or a failed mechanism. At Window Repairs Sutton, we specialise in uPVC window repairs and window locking mechanism repair for local homes, using our 10+ years of experience to get things secure again. Our public liability insured and DBS-checked technicians handle double glazing repairs like this efficiently, without the hassle of full replacements.
Who This Is For
This service suits homeowners in Sutton with standard outward-opening uPVC windows facing window won’t lock or window won’t stay closed problems. It’s ideal if you’ve noticed the lock catching, the handle turning without engaging, or the window sagging overnight. We focus on common uPVC window lock repair needs, excluding sash, sliding, tilt-and-turn, or inward-opening windows.
- Frustrated by draughts from insecure locks
- Concerned about home security after failed attempts to fix it yourself
- Seeking reliable espagnolette lock repair or espag lock repair without replacing the whole window
Our local team understands Sutton’s typical uPVC installations from the 1990s and 2000s, ensuring quick, targeted fixes.
Common Causes
Window lock repair often stems from everyday wear rather than sudden failure. Misalignment tops the list, where the window frame shifts slightly due to settling foundations or repeated use, preventing the lock from engaging fully.
Other frequent issues include:
- Worn locking mechanism: Multi-point espagnolette locks (common in uPVC) develop faults in the gearbox or rollers over time.
- Seized components: Lack of lubrication causes window mechanism repair needs, especially in older double glazing repairs.
- Distortion: Extreme weather or house movement leads to window alignment and adjustment problems.
Related symptoms like a jammed window often overlap, pointing to the same underlying issues. Spotting these early avoids escalation.
Likely Fixes & Options
We start every window lock repair with on-site diagnosis to distinguish alignment from mechanism failure—no guesswork. For window won’t lock cases, adjustments might suffice; mechanism issues require targeted component swaps.
Common options include:
- Alignment and adjustment: Toe-and-heel tweaks realign the window in 30-60 minutes, often resolving window won’t stay closed.
- Gearbox or roller replacement: Core of window gearbox or espag lock repair, restoring smooth operation.
- Full mechanism overhaul: For severe window locking mechanism repair, we strip, clean, and rebuild.
View our full repairs range for context on how this fits broader uPVC window repairs. Most jobs complete same-day, with aftercare advice to prevent recurrence.
How We Identify The Right Parts
Accuracy matters in window lock repair, so we follow a systematic process on arrival. First, we note your window’s brand (e.g., Maco, Avocet) and measure key dimensions like spindle length and hook shape.
- Visual inspection and test operation
- Dismantle to check gearbox type and compatibility
- Cross-reference with our stock or trusted suppliers
Our 10+ years experience helps match parts precisely, avoiding ill-fitting generics. We carry common window locking mechanisms but order specifics overnight if needed, keeping downtime low.
Parts & Compatibility
uPVC window lock repair relies on compatible parts for longevity. Most Sutton homes have multi-point espagnolettes with 16-35mm spindle spacing, fitting standard frames.
Key parts we source:
- Espagnolette locks: Full strips or sectional replacements.
- Gearboxes: Central drive units for handle operation.
- Strikes and keeps: Door-side receivers that wear out.
Check our window locking mechanisms guide for visuals and specs. We ensure compatibility with your window’s profile (e.g., Rehau, Deceuninck), never forcing universal fits that fail later.
Pricing Guide
Window lock repair costs depend on diagnosis—alignment starts lower than mechanism work. Expect £80-£150 for basic adjustments; £150-£300 for parts and labour on gearboxes.
Factors influencing price:
- Job complexity (access, dismantle time)
- Part type (stock vs specialist)
- Window size/height
No hidden fees; we quote upfront post-inspection. For full details, see our pricing page. As a local Sutton service, we keep rates competitive without cutting quality.
FAQs
How long does window lock repair take?
Most uPVC window lock repair jobs finish in 1-2 hours once diagnosed. Complex window mechanism repair might need a return for parts.
Can you repair my espag lock without replacing the handle?
Yes, espag lock repair targets the mechanism, not handles—unless yours is the issue. We avoid handle replacement here; see our broader repairs.
Will alignment fix my window won’t stay closed problem?
Often, yes—for window alignment and adjustment cases. If mechanism failure, we’ll explain window gearbox options transparently.
Do you service older double glazing?
We handle most post-1990s uPVC double glazing repairs, excluding wooden or sash windows.
What if my window has multiple issues?
We address window won’t lock alongside related symptoms like jamming during one visit.
When Repair May Not Be Suitable
Honesty first: window lock repair isn’t always viable. If the frame is severely warped, rotted, or from excluded types (sash, sliding, tilt-and-turn, inward-opening, wooden), replacement beats repair for safety and cost.
Other no-go scenarios:
- Extensive glass damage—we don’t handle clean-up or removal
- Pre-1990 windows with obsolete parts
- Structural house shifts needing builder input
In these cases, we advise alternatives transparently, saving you money long-term. Our liability insurance covers assessed work only.
Call To Action
Ready for window lock repair in Sutton? Call our local team on 020 8138 0796 or email info@window-repairs-sutton.co.uk to book a no-obligation inspection. Visit contact for quick scheduling—secure your windows today with trusted experts.
