Heritage Windows

Heritage Windows

Project Description

Heritage Style Casement Windows

Window Warehouse manufactures heritage windows including PVCu Georgian bar windows and heritage sash horn windows with style and energy efficiency at their core.

Your customer’s property is so much more than just a house, it’s their home. So, when they want to capture the look of a traditional vertical sliding sash window, our Heritage windows are the perfect solution.

Manufactured to maintain the elegant proportions of traditional sash windows, whilst incorporating the very best of modern-day technology, enables customers to enjoy the low maintenance and high security of uPVC without the problems associated with timber sash windows. These new windows are guaranteed for 10 years as they are manufactured from the highest quality materials under the strictest quality controls.

Our heritage windows feature tilting upper and lower sashes for ease of cleaning, low line beads and gaskets for improved sightlines, energy-efficient glass to reduce your heating bills, and above all they are quality assured for your customer’s peace of mind.

From a terraced house to a stately home, our heritage windows ensure that any property retains its character and charm. Customers can choose from a wide range of styles, colours and hardware options to complement their home perfectly.

Georgian Bar and Heritage Sash Horn Windows

Our Georgian bar heritage windows are made using Halo 70mm frames in a range of heritage colours. By combining this energy efficient PVCu profile with the astragal bar detailing, windows remain sympathetic to the traditional Georgian heritage window style which is popular on both traditional and contemporary properties.

For extra traditional style, homeowners can choose to have sash horn caps added to the opening sash of their casement or sliding sash windows the rounded caps help to soften the look of the window, maintaining traditional aesthetics.

Outstanding Security

Our heritage windows are fully reinforced with galvanised steel. This is to not only to prevent deflection in windy weather but also to strengthen the sashes so that they are capable of carrying the weight of the glass and provide a strong secure fixing for handles, latches and other components. The high-quality balances maintain the equilibrium of the sash window at all points of travel and robust locking devices ensure the security of your customers home. For added security an anti-jemmy aluminium bar is available. All of this gives you improved strength, greater safety and comfort in the knowledge that these windows are built to last.

Minimal Maintenance

Homeowners can now avoid the need for costly cleaning chemicals, varnish and paints. Manufactured using the latest modern materials, these Heritage windows will never rot, flake, peel or rust. Homeowners windows will simply require an occasional wipe down with a damp cloth.

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Leading Energy Efficiency

Haven Georgian bar and sash horn heritage windows are available up to an A Window Energy Rating, as certified by the BFRC (the British Fenestration Rating Council).

At Window Warehouse, we use Halo System 10 and Rustique profiles for chamfered and sculptured profiles which feature a 4 chambered sash for improved thermal efficiency.

The multiple chambers prevent cold air from outside conducting through the uPVC to the inside of the house and vice versa, improving energy efficiency and reducing cold spots to help save energy and reduce heating bills. Our windows are not only lead-free, but also
carry an A energy rating as standard, with Low-E double glazed units to keep the heat in, and help reduce heating bills. Our heritage windows also have brush seals around the openings for exceptional draught-proofing. Choosing uPVC over timber is an environmentally-friendly choice. The majority of end of life uPVC windows can be recycled over and over again to produce new windows. By purchasing our heritage windows you are not only keeping your home warm all year round and reducing your heating bills but also helping the environment.

Bespoke Profiles

Homeowners can enjoy fully bespoke heritage windows from Window Warehouse. Manufactured in line with your customers’ requirements, our windows are the perfect replacement solution for any style of home.

Whether our heritage windows are being installed in a modern, heritage or period home, they will seamlessly complement any existing architecture. Available in a full range of colours and finishes, our heritage windows can be matched with the décor of any home.

Your customers will also have the choice of a full selection of hardware accessories with which to complete their new heritage windows. To achieve a traditional look without the need for individual units of glass, our heritage windows offer a choice of internal/external glazing bars. Run through sash horns provide another decorative option for a truly authentic look.

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PVCu hardware options

We offer a range of greenteQ hardware options for our heritage sash and Georgian bar heritage windows which means we can offer a ten year guarantee on the full window frame – including the hardware. Homeowners can choose from a variety of finishes to suite with their homes , from the standard colour range: White, Brown, Black, PVD Gold, Polished Chrome, Satin Chrome and Smokey Chrome to the stainless steel finishes: PVD Gold, Polished Chrome and Brushed Stainless.

All window hardware can be fully suited with door hardware for a perfect match throughout the home.

Available in a great selection of colours

For added authenticity for traditional homes, our Georgian bar windows come in a variety of colour choices including: Cream, Whitewood, Irish Oak, Chartwell Green, Anthracite Grey and Black Brown.

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About Us

Malcolm Cake started Window Warehouse in 1986 and over 30 years later we are still serving some of our original customers. We are one of Halo’s longest standing trade fabricators and manufacture in Portsmouth.


We test our products to PAS 24 standards, meeting the latest Document Q Building Regulation requirements for new buildings.

Independent Network

Since 1996 over 230,000 homeowners have chosen a Network VEKA approved installer to fit their windows or doors. Now developed into the Independent Network, Window Warehouse is an Approved Trade Fabricator so talk to us about our outstanding installer support.


Our team is on hand to give you all the support you need. Our experts can give you technical and installation advice and offer we professional marketing and business support with our exclusive Haven retail brand promoted across Hampshire and the South Coast.

Quality First

Our windows and doors are manufactured to ISO 9001 : 2015 Quality Assurance and CENSolutions CMS Mark (CMS 6023W): Factory Production Control System compliance to EN 14351-1:2006. All our products also hold the CE Marking certification.
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Halo Installer Scheme

Powerful marketing support and exclusive sales leads in your area are two advantages of the free-to-join Halo Approved Installer Scheme. As one of the longest standing Halo Trade Fabricator partners Window Warehouse.