Windows for London, Kent & Surrey

Manufactured in Orpington

award winning windows for your home

Choose expertly made windows from Orpington-based Grabex Windows

At Grabex Windows, we design, manufacture and install bespoke windows in Kent and across the South East England, all made locally at our factory in Orpington.

Every window is made to your exact specification, whether you’re renovating a period property, upgrading a contemporary home, or working on a listed building that requires specialist knowledge and precision craftsmanship.

We work in timber, aluminium and uPVC, combining traditional joinery techniques with modern performance standards for insulation, security and longevity.

What are bespoke windows?

Bespoke windows are made-to-measure windows designed specifically for your property, manufactured to your exact requirements.

They are ideal for:

  • Refurbishments and renovations, house extensions and new builds, as they are made to measure to the size of the opening
    Home renovators seeking snug fitting replacement windows and doors, and also for:
  • Unusual or non-standard openings
  • Period and listed buildings
  • Architect-designed homes
  • Homeowners seeking a distinctive design feature

Unlike off-the-shelf windows, bespoke windows are manufactured to your exact requirements, tailored in shape, size, material, glazing and finish, ensuring a perfect fit and a truly individual result.

 

Made-to-measure windows for period and listed buildings

Grabex has extensive experience working with period homes, listed buildings and properties situated within the conservation areas throughout Kent and the South East.

We understand the planning requirements, sightline sensitivities and material considerations needed to:

  • Match original window proportions
  • Replicate historic detailing
  • Improve thermal efficiency without compromising character

Whether you need slimline timber frames, traditional profiles or sympathetic modern upgrades, our team will guide you through every stage.

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Bespoke window materials to suit every property

Timber bespoke windows

Ideal for traditional and heritage properties, our timber windows offer:

  • Authentic appearance
  • Custom mouldings and glazing bars
  • Long lifespan with modern finishes

Aluminium bespoke windows

Perfect for contemporary homes, bespoke aluminium windows offer:

  • Slim frames and large glazed areas
  • Excellent strength and durability
  • Modern colour options

uPVC bespoke windows

As a practical and cost-effective option bespoke upvc windows offer:

  • Low maintenance
  • Strong thermal performance
  • Flexible design and colour choices

All materials are manufactured in Orpington, allowing complete control over quality and specification.

Get in Touch
Modern living room with steel-look glass doors

Why order your Bespoke windows and doors directly from the manufacturer?

Bespoke Approach

As a direct manufacturer, we design and build every window and door to your specification and requirements, giving you bespoke approach over style, size, finishes and performance.

Manufacturers Guarantees

Buying directly from the manufacturer means your products come with genuine factory-backed guarantees for long-term confidence and peace of mind.

Quality Components

We source and control every component ourselves, from premium engineered timber to high-performance glazing and hardware, ensuring consistent quality throughout the entire product.

Control Over Lead Times & Process

By managing the full production process in-house, we provide reliable lead times, clear communication and tighter control at every stage of your project.

replicate Historical Features

Our skilled joinery team can accurately replicate period detailing, traditional mouldings and heritage features to restore your property’s original character.

Made locally by skilled craftsmen

Every item is handcrafted in our Orpington factory by experienced craftsmen, supporting local expertise and ensuring meticulous attention to detail.

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FAQ

 
 
Brochure showcasing aluminium windows and doors.

Get Inspired!

Download our  recent brochures, which feature a broad selection of our products and projects!

Get inspired for your home renovation journey!

Get your copy today
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VISIT OUR
SHOWROOM

Visit one of our showrooms in Wembley or Orpington or pop over to meet us on open day events!

Learn More

Start your
Project

Exceptional, and made-to-order windows, doors, and bespoke furniture to add character, style & value to your home.
GET A QUOTE

Partner with
Grabex Windows

We support architects & property developers with a complete end-to-end service - from design to fabrication & installation.
PARTNER WITH US

SLIDING-Folding DOORS FROM GRABEX WINDOWS

The bi-folding door systems from Grabex Windows act as transparent transitions or discreet room dividers - they can add emphasis to a room or create generous gateways to the outside.

With numerous combinations of panel numbers and opening systems, installing bespoke bi-folding doors means you can create a flexible and beautiful feature of your home.

DESIGN
consultation

We have the expertise to help you come up with the right choices for your property.

fensa
installers

We have Fensa approved installation team and you will get a FENSA certificate once the work is completed.

10 years
warranty

We provide a 10 year warranty on all products that we install.