We supply and install Timber, Aluminium and PVC Windows and Doors

We have been supplying London and Hertfordshire with high quality and customisable timber, aluminium and upvc windows and doors since 2006.


Why should you get your windows or doors supplied and installed by us ?

Timber windows and doors create a natural connection to the outside world. The beauty of timber lies in it’s warmth and charm, combined with it’s natural grain and colour variation. Timber windows complement almost any architectural style be it Victorian or Edwardian.

All our wooden windows or doors products are manufactured in Europe. With lead times ranging between 14-28 days. You can have the job done really fast.

Furthermore, our pvc products, which are also manufactured in Europe, have lead times starting from only around 10 days. Just imagine getting your custom windows installed that fast. Not only will you gain valuable time, but also save on refurbishment costs as well.



Imperial Contractors has the years of experience to know replacement windows installation is as valuable as the quality of the new windows.

New Window Installation

We will provide expert advice, quotation, supply and installation of new Timber, Aluminium or uPVC windows and doors for all our projects.

Custom Window Designs

We can design a window system that would enhance the appearance of the building and fit within the development budget. From rectangular to special shaped designs, we have got you covered on your needs.

Window Noise Reduction

We are able to provide technical information for the best performing windows based on traffic noise and thermal insulation. We can handle adding secondary glazing as well.


The commercial window installation process is hassle-free and easy to manage with Imperial Contractors.

Timber Windows and Doors

We specialise in the design and installation of quality timber  windows and doors.

Aluminium Windows and Doors

We offer a wide selection of custom made aluminium windows and doors, designed to suit your every need. Choose from sliding windows, awning windows and more.

uPVC/PVC Windows and Doors

Our PVC windows and doors are environmentally friendly, with outstanding thermal performance and significantly reduced noise.

Bespoke Timber Windows and Doors

Made from solid timber in the traditional way with mortise and tenon joins, your windows and doors will remain beautiful, functional and stable for many decades.

Bespoke Timber Windows

Imperial Contractor’s commitment to expert craftsmanship and sustainable design enables us to produce timber windows which are beautiful, energy-saving and long-lasting.

Wooden Sash Windows

Wooden sash windows are an integral part of United Kingdom’s architectural culture and should be preserved.

Casement Timber Windows

Created to allow more ventilation into your home, casement timber windows capture the tradition of the past while providing the durability and functionality of modern construction.

Bespoke French Wooden Doors

Popular in either contemporary or period style homes replacement timber French patio doors provide added charm and are an elegant feature providing easy access from the interior to exterior.

Bespoke Sliding Wooden Doors

Sliding doors can be made to suit almost any opening. They have a potentially limitless maximum size, and are restrained only by the size of the building, the limitations of the glass and deflection rating of the door panels.

Custom Made uPVC Windows and Doors

UPVC is common in the UK and Europe because of its resistance to harsh weather conditions. It has become a preferred material for many also due to its lower cost.
Casement uPVC Windows

Double glazed casement windows come with everything you would expect in terms of energy efficiency and noise reduction. Watch your gas and electricity bills drop while you sit in a quiet and peaceful environment.

Tilt and Turn Windows

Two ways to excite fresh air lovers as your Tilt & Turn windows will give you multiple options to freshen up your home. Maximal functionality combined with modern design.

Special Shaped PVC Windows

We can customise a variety of shapes including half circle windows, oval windows, circle windows, trapezoid windows, triangle windows and arches to fit your home.

Custom PVC bi-folding Doors

uPVC Bifold doors are one of the easiest ways to instantly open up your living space to the great outdoors. You can quickly convert your dining room or living area into a patio by folding the doors neatly to one side on their smooth roller systems.

Custom PVC French Doors

Exceptional UPVC French doors without compromising on the practical aspects of heating and cooling your home.

Made to Measure Aluminium Windows and Doors

Our products are made to order. When you purchase one of our aluminium windows or doors, that aluminium window or door is 100% custom-made for you. This means that you have full control over the size, style and specifications of your product.

Casement Aluminium Windows

If you’re looking to invite fresh air into your home, you can’t look past aluminium casement windows. Strong, secure and stylish, our casement windows are a long-established favourite by customers.

Tilt and Turn Aluminium Windows

When functionality counts, providing both ventilation and ease of access for cleaning, our Tilt & Turn technology on the aluminium windows, provides an ideal solution for a common problem.

French Aluminium Doors

Our aluminium French doors are available in single or double panel styles to suit all homes and businesses.

Sliding Aluminium Doors

Minimalist style meets practical functionality with our Aluminium Sliding Doors.

Bi-fold Aluminium Doors

With customisable folding options, superior security and an easy to operate design, our aluminium bi fold doors are a popular choice for entertainment areas.

Timber Windows and Doors Supply

Feel the difference that real wood can make to your home.

uPVC Windows and Doors Supply

Designed and manufactured to withstand the harsh  and wet UK climate.

Composite and Fire Doors Supply

The preferred choice of double glazed external doors for many homeowners, diyer’s and tradesmen.

New Windows and Doors Installation

A Good installation practice avoids damage, maintains quality and saves you money.

Secondary Glazing

Installing supplementary glazing on the inside of an existing single-glazed window.

Windows and Doors Refurbishment

We dismantle your windows and doors and restore or repair them.

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Timber Windows and Doors

uPVC Windows and Doors

Composite and Fire Doors

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