Professional Door Diagnostic Service in Surrey
Our Door Diagnostic Service is designed for most residential uPVC, composite and aluminium doors, including front and back doors, French doors, sliding patio doors and bi-fold doors. Whether your door is difficult to lock, catching on the frame, dropping, letting in draughts or simply not operating as it should, our experienced technicians have the knowledge and expertise to identify the cause of the problem.
Unlike a basic inspection, this is a comprehensive hands-on service designed to improve your door’s performance wherever possible. We’ll carry out a thorough assessment of the complete door system, make adjustments and servicing where appropriate, and provide honest recommendations for any further work required to keep your door operating safely, securely and efficiently.
Every service includes a 12-month guarantee on all works completed during the appointment.
Door Diagnostic Service
– £125 + VAT
Designed to identify faults, improve performance, and help prevent future repairs.
Our Door Diagnostic Service is a hands-on assessment carried out by an experienced technician. We’ll inspect your door, identify faults, make adjustments where possible, and recommend any further work required. The service includes operational and security checks, lubrication, minor adjustments, and a 12-month guarantee.
A 50% deposit secures your booking, with any replacement parts quoted separately.
Full Door Inspection & Fault Diagnosis
Many door problems develop gradually over time. Locks become harder to operate, doors begin to drop, hinges wear, and seals lose their effectiveness. These issues often go unnoticed until the door becomes difficult to use or stops functioning correctly.
Our Door Diagnostic Service includes a comprehensive assessment of the entire door system, allowing us to identify faults, wear, security concerns and performance issues before they become larger and more expensive repairs.
Servicing, Adjustments & Performance Improvements
Our aim is always to achieve a first-time fix wherever possible.
During the visit, we carry out adjustments, lubrication and servicing where appropriate to improve the operation of the door. In many cases, these minor corrective works can restore smooth performance, improve security and resolve common issues without the need for replacement parts.
Honest Advice & Repair Recommendations
If replacement parts are required, we’ll explain exactly what has been identified and provide clear recommendations before any further work is carried out.
Whether the issue relates to locks, hinges, handles, cylinders or other hardware, you’ll receive transparent pricing and honest advice on the most cost-effective solution.
Trusted Door Specialists Across Surrey & The South East
With years of hands-on experience, County Secure is a trusted name for professional door repairs and servicing across Surrey and the South East. Our technicians diagnose accurately, provide honest advice, and help homeowners avoid unnecessary replacements through practical, cost-effective repair solutions.
98%
Successful repairs to all windows and doors we are asked to fix.
5+
Years of Trusted Service in the Surrey Area.
Most Door Problems Can Be Resolved Without Replacing The Door
A door that’s difficult to lock, catching on the frame, or letting in draughts rarely means replacement is necessary. Alignment issues, worn hardware, failed seals and lock problems can often be repaired independently, helping you avoid unnecessary expense.
Our Door Diagnostic Service is designed to identify the true cause of the problem and recommend the most practical solution.
Small Problems Often Become Expensive Repairs
A door that’s slightly out of alignment places additional strain on locks, hinges and hardware every time it’s used. Left unaddressed, minor issues often develop into more significant failures that require replacement parts. Early diagnosis and servicing help prevent this progression and can significantly extend the lifespan of your door.
Not Sure Whether Your Door Needs Repair?
Many door problems aren’t immediately obvious. Difficulty locking, resistance when opening, draughts and unusual movement can all indicate underlying issues that may worsen over time.
Our Door Diagnostic Service provides a professional assessment of the complete system, helping you understand exactly what’s causing the problem and what action, if any, is required.
Additional Door Repair Services
Door Repair
From dropped doors and failed locks to worn hinges and damaged hardware, we provide professional door repairs for uPVC, composite, aluminium and timber doors.
Lock Replacement
Whether you’re experiencing lock failure or looking to improve security, we supply and fit replacement locks for all major door systems.
Door Realignment
A door that catches, drops or won’t close correctly can often be restored through professional adjustment and realignment.
Door Problems. Diagnosed. Sorted.
Whether your door is difficult to lock, dropping within the frame, letting in draughts or simply not operating as smoothly as it should, our Door Diagnostic Service provides expert assessment, practical solutions and honest recommendations.
Book your appointment today and let our experienced technicians identify the problem before it becomes a more costly repair.
Prevent Costly Repairs
Identifying and correcting faults early can help prevent more expensive repairs and unexpected failures in the future.
Experienced Door Specialists
Our technicians have extensive experience across uPVC, composite, aluminium and timber door systems.
12-Month Guarantee
All works completed during the visit are backed by our 12-month workmanship guarantee for complete peace of mind.
Frequently Asked Questions
If you’re considering our Door Diagnostic Service, you may have a few questions about what’s included, how the service works, and what happens if repairs are required. We’ve answered some of the most common questions below to help you understand what to expect.
The service includes a full inspection of the door system, operational testing, alignment checks, lock and security assessment, hinge and hardware inspection, seal and weatherproofing checks, glazing inspection, lubrication and minor adjustments where possible.
The service is charged at £125 + VAT. A 50% deposit is required to secure your booking, with the remaining balance payable upon completion of the appointment.
If replacement parts are needed or further work is required, we will explain the issue clearly and provide a separate quotation before carrying out any additional work.
Yes. Wherever possible, adjustments, servicing, lubrication and minor corrective work are carried out during the appointment. Our aim is always to achieve a first-time fix wherever practical.
Yes. All works completed during the visit are covered by our 12-month workmanship guarantee.
Most Door Diagnostic Service appointments take up to 60 minutes depending on the condition of the door and the complexity of any issues identified.
A Door Diagnostic Service is ideal when the cause of the problem isn't immediately clear. It allows us to carry out a comprehensive assessment, improve performance where possible, and provide expert recommendations before any larger repairs are undertaken.
The good news is that, in our experience, around 98% of doors can be successfully repaired. In the unlikely event that your door cannot be repaired, we will provide a clear explanation of our findings and the reasons why.
This may be because the door is beyond economical repair, replacement parts are obsolete or no longer available, or a repair would not be practical or recommended.
Where a repair cannot be carried out, we will offer honest advice and recommend the most appropriate next steps, including alternative solutions or replacement options where appropriate.
Registered Office
County Secure Ltd, The Old Coach House, 83a Victoria Road, Farnborough, GU14 7PP
Get in Touch
Sticking doors, broken locks, or damaged frames – we fix it all. Contact us today for fast, reliable door repair services.