Professional uPVC Window Repairs and Double Glazing Repairs in Doncaster
Your property’s security detail relies heavily on how strong (and unbreakable) your windows are. We realise that your windows must stay practical and also resist common burglary methods. Our locksmiths can install new window locks and repair/replace your uPVC windows, enhancing the overall security of your home or business place, discouraging potential intruders.




uPVC Window Lock and Repair Services in Doncaster
When your windows malfunction, burglars can find an easy way to break into your home, steal your belongings, or damage your property. That’s why you should rely on professionals to make your Doncaster home’s windows burglar-resistant by tackling unsecured entry points.
As burglary instances are increasingly in your area, we at Lock & Key Doncaster offer a wide range of uPVC window and double-glazing repair services to restore the complete functionality of your windows. Avoid expensive replacements later by repairing uPVC windows today.
Lock and handle repairs and replacements
We excel at not only repairing uPVC windows’ locks and handles but also installing new ones. So, we can bring your windows to 100% working order by making them easy to open and close. Our locksmiths carry spare parts to restore your uPVC window’s functionality no matter what its model is!
Replacement hinges
We also specialise in replacing broken hinges or hinges that have alignment or flexibility issues. Our locksmith will install durable hinges to make sure that your windows are fully functional.
Replacing misty glass and double glazing units
Double-glazed windows become foggy when the sealant has been compromised or becomes worn out. So, we can replace your window’s sealant with a snug new one, removing this issue of condensation and weatherproofing your home once again.
Adjustments and realignments
Alignment issues in windows often make it hard to open or close. In these cases, there’s no need to replace your window; instead, our local locksmith based in Doncaster will realign their frames to make them safer and also better at insulating your home.
Replacing window seals and gaskets
You can keep your home warmer in colder months by replacing damaged seals. At Lock & Key Doncaster will install durable rubber seals to make your property well-insulated. Gaskets and seals, when replaced, will make the internal atmosphere more comfortable for occupants.
uPVC window security upgrades
You can take your home security up a few notches by replacing sash jammers on your windows, along with restrictors. These uPVC window accessories can make it very difficult for outsiders to break into your home.
Call our 24/7 helpline:
01302 272 162
Reliable trusted professionals
Professional Locksmiths – Local Expertise




Common uPVC Window Problems
At Doncaster Lock & Key can repair or replace your uPVC windows to make them better at resisting burglars and weather elements. We can boost your home’s curb appeal by boosting your uPVC windows’ energy efficiency.
Our locksmiths can tackle a range of issues, whether it’s a faulty lock, loose hinge, misty glass panel, or something else. Our trained locksmiths will make your windows fully functional again at affordable rates. Our services in this regard include:
Common uPVC Window Issues
Homeowners throughout the Kingdom prioritise uPVC windows for their durability, long-lasting nature, low maintenance needs, and cost-efficiency. However, bad weather along with natural wear and tear can degrade the quality of your uPVC windows. Some common problems reported to us include:
Faulty or stiff locks and handles
When locks or handles get corroded, damaged, broken, or jammed due to misalignment issues, seasonal wear and tear, dirt accumulation, or some other reason, your windows may malfunction. You won’t be able to easily open/close them either. More worrying is the fact that burglars may utilise the stiffness of the window lock/handle to gain access to your home, threatening to steal your valuables.
Broken or worn hinges
When seals stop working, you won’t be able to shut down your windows all the way. A worn-out window doesn’t stop outside air from creeping in, causing uncomfortable drafts. Drafty windows that don’t close all the way are vulnerable to common burglary tactics. Intruders can force open a window if it has loose or misaligned hinges.
Misted or foggy double glazing
When the seal stops working properly, moisture gets inside your windows, causing the two glass panels to become misty and foggy. It ruins the visibility of your uPVC windows and also reduces their energy efficiency. Double-glazing condensation is bad for the insulation of your windows, too.
Window that don't close properly
If your window fails to close completely, it may be due to a misaligned frame, a problem that often develops over time. This sometimes occurs as a result of a new property settling, external environmental influences, or simply from frequent use.
“Warping” in uPVC windows is typically caused by temperature fluctuations, especially in extreme weather conditions. The uPVC material tends to expand and contract, which can make it difficult to shut the window properly.
A common problem with uPVC windows is damaged seals, which can prevent the window from closing securely. This allows moisture and draughts to enter your home. Resolving these issues promptly will enhance the window’s functionality, improve insulation, and boost the security of your property.
Stuck or jammed windows
When window frames are swollen due to the accumulation of paint or damaged by mechanical failures, your uPVC windows will become blocked. So, you won’t be able to open/close them the right way. It’s a major security issue and something you must address as a matter of priority.
Draughty windows
Having trouble closing your windows? Feel like they simply don’t budge and refuse to close all the way? It often happens when your window frame has alignment issues. Thermal expansion & land shifting post-construction can also cause this problem. The uPVC material can suffer from “warping,” making your window difficult to close.
Also, when your seals get in the way, your windows may not close all the way, letting moisture, outside air, and (sometimes) intruders inside your house! If you want to keep your home secure, insulated, warm, and aesthetically appealing, you should fix these issues ASAP.
Call our 24/7 helpline:
01302 272 162
Reliable trusted professionals
Whatever the time, day or night, if you have a problem with your locks, we can help. We operate a 24/7 service across the Doncaster and surrounding area, providing locksmithing solutions to both domestic and commercial customers.




Why Choose Lock & Key Doncaster?
When it comes to repairing and maintaining your uPVC windows and locks, professional expertise is crucial to ensure the job is done both efficiently and effectively.
At Doncaster Lock & Key, our fully accredited team of locksmiths have been repairing uPVC window locks and maintaining double glazing across Doncaster and the surrounding area for over three decades.
Thanks to our fast response times, affordable prices and friendly local locksmiths, we’ve racked up hundreds of 5-star reviews, so you can rest easy knowing you’re in the very best hands.
We are proud to say that all our locksmiths are both City & Guilds Accredited and NCFE-approved. This means when your local locksmith turns up on your doorstep, you can be totally confident in the service and quality of workmanship you will receive.
Local and trusted locksmith service
We are a Doncaster-based locksmith company with decades of experience in window and door security repairs. We are proud of our reputation which is built on reliability, quality workmanship, and excellent customer service.
Fast and efficient service
Instead of replacing your entire window, our expertly trained team of locksmiths can save you money while extending the lifespan of your existing uPVC windows.
Cost-effective repairs
We offer fast response times to ensure your window problems are resolved as quickly as possible.
Fully insured and guaranteed work
All our repairs are backed by a guarantee, giving you peace of mind that the work is done to the highest standard.
Peace of mind
With our highly trained team of locksmiths handling your repairs, you can rest easy knowing that your home is secure, efficient, and operating smoothly.
Call our 24/7 helpline:
01302 272 162
Reliable trusted professionals
Expert window locks, expert care – Your security partners for comprehensive protection and peace of mind
Our uPVC Window Lock Repair Process
Your property is our top priority, and here’s how we can do that for you no matter what day or time of the week.
Call us to Arrange an Initial Consultation
We will discuss the concerns you have about your uPVC window locks and security. A locksmith will visit your property to identify the cause of the problem and the best repair strategy.
Detailed Repair Plan and Quote
We will provide you with a comprehensive repair plan along with an upfront, no-obligation quotation. You’ll know exactly what work needs to be done and at what cost.
Efficient and Professional Repairs
We will carry out the necessary repairs or replacements with precision and care. We work diligently to minimise disruption to your day while ensuring the highest quality workmanship.
Maintenance Tips and Future Planning
We will provide you with valuable advice on regular maintenance and potential upgrades to help extend the life of your uPVC windows, keeping your home secure and efficient for years to come.
At Lock and Key Barnsley, we have built an enviable reputation over the past 30 years, for providing transparency and honesty in our approach to locksmith services.
When one of our local locksmiths arrives at your property, they will always explain exactly what they are going to do and why, they will only go ahead with any work if you are completely satisfied that this is the best course of action for you.
We put care into every job we do, and it shows - our locksmiths truly work hard, and our 5-star Google reviews just keep growing!
Over 200+ 5 Star Google Reviews
We’ve built our reputation in Doncaster and the surrounding areas by offering honest, affordable, professional locksmith services for over 30 years, and our amazing customers keep the great feedback coming!
Protecting Your Property is Our Top Priority
Setting the Standard for Locksmith Excellence
Trusted by homeowners and businesses throughout Doncaster, we’re the go-to choice for dependable locksmith services. Here’s why our customers continue to choose us:
1 Hour Call-Out
DBS Checked
Master Locksmiths
Established 30 Years
24/7 Availability
Local Business
Fast Response Time
Wide Range of Services
Affordable Pricing
Up-to-Date Training
Expertise
Professionalism
City & Guilds Accredited
Security Assessment
Trustworthiness
Personalised Attention
High Quality Products
Customised Solutions
Efficiency
Guaranteed Work
Areas our locksmiths cover across Doncaster
Quick, local help is just a call away – we cover the following locations across Doncaster in under an hour:
24/7 helpline - CALL NOW:
01302 272 162
Lock & Key Doncaster
Unit 4, Atlas Office Park Centre
Balby Carr Bank
Doncaster
DN4 5JT
Request A Quote
Save Time – Save Money – Contact Doncaster Lock & Key!
Professional Doncaster Locksmith Services
Our locksmiths are ready to come to your aid 24/7. At Lock & Key Doncaster, we have a fleet of local mobile locksmiths on standby. They can provide quick locksmith services no matter when/where you need them! If you want a new lock, need us to repair your door lock, or need to upgrade your security system, get in touch with us right away.
Frequently asked questions
How much does a locksmith cost in Doncaster?
At Doncaster Lock & Key, we pride ourselves on keeping prices low and affordable for all our customers in Doncaster. A locksmith cost can vary depending on the service you require, the issue at hand and the solutions available – but don’t worry, we don’t charge over the odds like most national locksmith companies. We provide free quotes with no obligation over the phone, so you’ll know what to expect before we even attend.
How quickly can a locksmith arrive at my location?
The typical response time will vary from 30 minutes to an hour in emergencies. Because our locksmiths are all local to Doncaster we can easily get to you at any time of day and literally 24/7.
Are your locksmiths certified and insured?
Our locksmiths are DBS checked, insured and both City & Guilds-accredited and NCFE-certified which are the highest accreditation available in locksmithing. Trust that you and your property are in the safe hands of professionals.
Do you offer a guarantee?
Yes! Here at Doncaster Lock & Key, it’s our number one priority to ensure our customers’ satisfaction. Which is why we only use high-quality locks and equipment with a guarantee. Our guarantee is a fully comprehensive 12 months one for all parts we supply and fit. In the rare event that one of our locks goes wrong, trust that we’ll return to your property ASAP and replace it. All completely free of charge!
What should I do while waiting for the locksmith to arrive?
We know what it feels like to wait for your locksmith, but trust that we’ll be at your doorstep in no time. Make sure that your reachable via phone so we can locate you, and as much as possible avoid doing anything with your locks or attempt to fix the problem. We’ll take care of everything once we’re there!
How long will it take for the locksmith to gain entry?
This depends on the type of lock you have, for instance if it’s a standard Yale rim cylinder type or a Euro Cylinder one, it will take mere minutes to gain entry. Likewise, if it’s a more complex lock then it can take longer.
How much time does a locksmith take to change a lock?
Our locksmiths can take 30 minutes to replace door locks and work on adjustments to secure it. But this can vary from the nature of the door (is it uPVC for instance), the number of locks to be replaced, and what kind of lock is used. This can all be answered by our local locksmith when he arrives at your property.
Can the locksmith provide a quote beforehand?
Yes, in the majority of situations we can 100% provide you with a quote before even taking the job so you’ll know what it all entails. We’ll most likely ask you questions to help identify the main issue together with photos to properly assess it.
How much Is a locksmith call out charge?
Absolutely NO call out fees when you hire one of our locksmiths! The only thing you’ll be charged of is the services you need based on the lock and key problem. We value transparency, and we never charge hidden fees.
How can I pay for the work carried out?
Payments can be easily made in cash or via all major debit and credit cards.
Additional Resources You May Find Helpful
Here are some helpful websites that provide additional information on home security, crime prevention, and personal safety.


Neighbourhood & Home Watch Network
As the UK’s largest volunteer-led crime prevention charity, this organisation works closely with communities to help create safer and more resilient places to live. It offers a range of resources, initiatives, and networks designed to empower volunteers and local residents to work together in preventing crime, promoting safety awareness, and strengthening community connections.
Email: [email protected]
Web: https://www.ourwatch.org.uk
CrimeStoppers
Being burgled isn’t just about losing possessions, it also takes away your sense of safety and comfort in your own home. If you have any information about someone involved in a burglary, you can call Crimestoppers anonymously any time, day or night, on 0800 555 111. You can also provide any information you may think is useful via their online secure form.
Phone: 0800 555 111
Web: https://crimestoppers-uk.org/


Secured by Design
An official police-led security initiative dedicated to preventing crime in homes and commercial properties. It promotes the use of accredited security standards across a wide range of products and applications, including locks, doors, and windows.
Phone: 0203 8623 999
Web: www.securedbydesign.com
Age UK
A national charity that supports and works alongside a network of over 170 local Age UK branches, creating a wide-reaching presence across England. The broader Age UK family also includes Age Scotland, Age Cymru, and Age NI.
Email: [email protected]
Web: https://www.ageuk.org.uk