Our DIY roller garage doors are a great solution for Harrow homeowners who are comfortable with tools and ready to take on a self-install project. While the process is straightforward, we recommend having a second person help-particularly when measuring or positioning the door. For instance, taking accurate horizontal measurements of your garage opening is far easier and more precise with an extra set of hands.
On installation day, having two people is not just helpful-it’s vital for safety. Lifting, aligning, and securing the door requires coordination, and working alone isn’t advisable. Most installations take around 4-6 hours and require only standard tools like a drill/driver bit, fixings, and a step ladder. Preparing your tools and workspace ahead of time helps keep the process smooth from start to finish. With our detailed instructions and video tutorials, you’ll be fully equipped to fit your TWF garage door with confidence.
You’ll need to measure the height, width, and available headroom of your garage opening. Our online measuring guide walks you through each step with visual examples. Alternatively, our DIY order form covers every required measurement clearly. Click the “Garage Door Builder” button in our menu to get started.
Yes. All of our standard DIY roller doors use 77mm foam-filled aluminium slats, offering excellent thermal and acoustic insulation-perfect for Harrow garages used as storage, workshops, or extended living areas.
Every TWF DIY door comes with a comprehensive 5-year warranty that covers key components including the motor, control unit, and slats. You can find full warranty details on our dedicated page.
Absolutely. TWF Roller Garage Doors provides fast, secure nationwide delivery-including to Harrow and surrounding areas. Each roller door is built to your exact specifications, securely packed, and shipped ready for easy home installation.
Our DIY kits are ideal for homeowners who prefer to manage their own improvements. With no specialist tools needed and clear instructions included, you can install your roller door on your own schedule. Whether you're based in central Harrow or nearby areas, we’ll ensure prompt, hassle-free delivery right to your door.
Our doors come with secure locking mechanisms integrated within the motor and guide rails. Optional security upgrades can be added when placing your order or purchased later from our accessories shop.
All TWF roller garage doors include a manual override system. If there’s a power outage, you can still open or close your garage from inside using the supplied winding handle.
Generally, you won’t need planning permission to replace an existing garage door in Harrow. However, if your property is in a conservation area or is listed, it’s best to consult Harrow Council for guidance.
Most orders are delivered within 4 weeks. Since every door is custom-made, exact delivery times may vary slightly. For updates or further information, feel free to call us on 01603 737183.