Single to Double Garage Door Conversion Specialists in Berkshire
If you currently have two single garage doors and find them restrictive, converting them into a single double garage door can transform how your garage works for you. CA Security Shutters specialises in double garage door conversions, helping homeowners across Berkshire and surrounding areas improve accessibility, enhance space and modernise their property with a wider, more practical opening.


What is a Double Garage Door Conversion?

A double garage door conversion involves replacing two adjacent single garage doors with one wider double door. This process typically requires moving the central dividing pillar and installing a structural support (such as an RSJ lintel) before fitting the new larger door across the full width of the garage opening.
The result is a more generous entrance that accommodates wider vehicles, simplifies parking and gives you better use of the internal garage space.
Benefits of Converting to a Double Garage Door in Berkshire
A double garage door offers a range of practical and aesthetic advantages:
- Easier parking and manoeuvring – a single wide opening makes it simpler to park larger vehicles or manoeuvre with reduced risk of scrapes.
- Improved internal space – removing the central pillar creates additional usable room inside the garage.
- Modern look – one larger door can give your home a cleaner and more contemporary appearance.
- Enhanced security and insulation – a single robust door can offer consistent locking and insulation across the entire opening.

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What Garage Door Types can be Used for a Conversion?

A double garage door conversion isn’t limited to a single door style. Once your opening has been prepared, you can choose from a range of door types such as:
- Roller garage doors – space saving and smooth operating
- Sectional garage doors – secure and insulated with overhead storage room
- Up and over garage doors – classic and reliable
- Side hinged garage doors – traditional look with flexible access

Double Garage Door Conversions You Can Rely On
The process typically includes:
- Site survey – we assess your garage structure, opening and requirements.
- Structural adaptations – carefully removing the central pillar and installing a structural beam to ensure the garage retains its integrity.
- Made to measure door specification – your new double garage door is sized and specified to fit precisely.
- Professional installation – our qualified team install the door to manufacturer and safety standards, ensuring reliable performance and secure operation.
Book your Double Garage Door Conversion Consultation Today
If you are considering a new double garage door conversion, speak to an experienced specialist who can guide you through your options.
Contact us to arrange a free consultation, visit our showroom or request a detailed quote tailored to your property.

FAQs About Double Garage Door Conversions

A double garage door conversion involves removing two separate single garage doors and replacing them with one wider double door. This usually includes taking out the central pillar and installing appropriate structural support before fitting the new door. We manage the process from survey through to final installation.
In many cases, planning permission is not required if the work does not significantly alter the external appearance of the property. However, this can vary depending on the property type and location. We can advise you during your consultation and recommend checking with your local authority if necessary.
A single wide opening makes parking and manoeuvring easier, particularly for larger vehicles. It also improves access, creates better use of internal garage space and can give your home a more modern, streamlined appearance.
Yes, when carried out correctly, the central pillar is replaced with a suitable structural beam to maintain the integrity of the garage opening. We assess the structure during the initial survey and ensure all necessary support is installed before fitting your new double garage door.
The timeframe depends on the structural work required and the type of door being installed. After assessing your garage, we will provide a clear outline of the expected schedule, so you know what to expect from start to finish.
Once the opening has been prepared, you can choose from roller, sectional, up and over or side hinged garage doors. We will explain the advantages of each option and help you select the most suitable door for your needs and budget.
The cost varies depending on factors such as structural alterations, the size of the opening and the type of garage door chosen. We provide a detailed, tailored quotation following a site survey, so you have a clear understanding of the full scope of the work involved.



