Cardiff Windows and Doors

Cardiff Windows and Doors.

After ten years in Cardiff, we've installed thousands of windows and doors in a variety of house styles across South Wales. 

Cardiff is a modern city, yet it has many buildings from the Victorian and Edwardian eras. These buildings are made of many different materials such as Bath stone, blue Pennant stone and red brick – except in Cathays Park where Portland stone is predominant. Grey Lias stone features heavily in the construction of Cardiff's medieval buildings (the keep of Cardiff Castle, Llandaff Cathedral and St John the Baptist's church) but absent from later ones. Two recent buildings in Cardiff Bay, Senedd and Wales Millennium Centre make conspicuous use of Welsh slate together with glass and steel.

When helping our Cardiff customers to choose their double glazing, we often have to balance the integrity of the building with the modern demands of the homeowner. There is so much choice in windows and doors now that we can always find the right solution.


Call Heath Windows and Doors Cardiff to arrange an appointment on 02920 650 854 or pop into our Cardiff Showroom.  Click for directions.  Alternatively, please email us at This email address is being protected from spambots. You need JavaScript enabled to view it.. We look forward to hearing from you.


Cardiff windows and doors, uPVC sash windowsuPVC Sash Windows For This Delightful Bungalow.

Old timber sash windows are known for being draughty and difficult to open and close. Often they have been painted many times over the years and with every coat of paint, the windows become stiffer.

Modern uPVC sash windows are a lovely feature that maintains the period charm and benefits from modern technology. All of our windows are engineered with precision for smooth opening and closing, providing exceptional thermal efficiency and the best security.

Sometimes, sash windows are replaced with casement windows. In this case, the stone pillars take up a fair bit of space, meaning that casement windows would have been quite narrow and would not have suited the house.

Sash windows may be double hung, which means that you can open them from the top or the bottom. This would be useful if you have children or pets that could reach a low open window. Opening at the top means that you can safely allow for airflow while keeping them safe.

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Sash Windows and Doors in Cardiff.

Sash windows are very popular in Cardiff. Often they are the only solution when the bay is made up of stone pillars. Our beautiful sash windows retain the traditional look but give all of the benefits you would expect from modern double glazed technology. Smooth operation, thermally efficient, secure. stylish and virtually no maintenance.

Sash windows with rosewood posts in CardiffNot all sash windows are the same though. Our customer in Cardiff suggested these Rosewood posts and to be honest we weren't that sure but it works very well for this traditional house. 

We will work with you to achieve the look that you want. You don't have to follow the crowd or repeat the style of the old windows. The addition of the glazing bars also helps to give this house a unique look.

The most popular colour in Cardiff is white but anthracite is becoming more popular. It's not a rule but it seems that when the window is surrounded by light stone, the anthracite provides a stunning contrast. When the window is surrounded by brick the contrast is reduced and customers favour white.

Whichever colour you choose, the interior can be white so that your home looks light and spacious. Visit this page to find out more about sash windows. Heath Windows and doors are the Cardiff Sash Window Company to choose for quality products and superb service.



Call Heath Windows and Doors Cardiff to arrange an appointment on 02920 650 854 or pop into our Cardiff Showroom.  Click for directions.  Alternatively, please email us at This email address is being protected from spambots. You need JavaScript enabled to view it.. We look forward to hearing from you.


 Anthracite Windows and Solidor Composite Door in CardiffModern Homes in Cardiff.

Naturally, we also have many houses in and around Cardiff that lend themselves to modern windows and doors. 

The stunning Solidor Flint 2 Composite door in a beautiful anthracite grey matches perfectly with the windows, fascia, soffits and guttering. Solidor composite doors have a 48mm solid timber core that offers superior strength and fantastic levels of security.

This front door is beautifully finished with an Avon slimline handle and traditional letter plate in black; this installation lifts this house to a whole new level.

The door is fitted with Ultion locks for ultimate security. 

Ultion Locks are a revolutionary locking system that when locked, stays locked!

When an Ultion lock detects an attack, a hidden lock within the Ultion automatically engages so that even when snapped twice nothing gets past it. Leaving a key on the inside of the lock won’t affect its performance either.

Customers often struggle with the idea of changing colour. That's not surprising. It's hard to imagine and difficult to do something different from the neighbours. You can see from this installation that the brave choice was the right one. No doubt some of the neighbours will follow.

Flush Windows Cardiff installationFlush Windows in Cardiff.

Relatively new to the mass market are these double glazed flush windows. These are fabulous for replacing old wooden windows, which are not energy efficient while maintaining the traditional look. These uPVC windows are so authentic, that they are even being accepted in some conservation areas in England and Wales.

You can choose from mitred or butted joints, depending on how authentic you want your replacement windows to look.

Constructed from uPVC with all of the benefits you would expect from the best double glazing supplier in Cardiff, these are windows that will have your friends asking where you got them from.

As with all our other uPVC windows, there is a wide choice of colours and finishes and the flexibility of opening windows. The beauty of these windows is that whether the windows are open or closed, the sightlines remain the same, creating a harmonious look.

Stunning Oak Windows in Dinas Powys, Nr Cardiff.

This is quite an unusual house. The old draughty aluminium door and obscure glazing made it look very dated. It's a good example of not having to stay with what was there before. Originally the door area had a door on the right and a glazed panel on the left. Placing the door in the centre with matching panels on either side turns the door into a real feature and certainly improves the kerb appeal.

Originally the windows had only opening small opening windows at the top. Large side opening windows allow for better airflow and look modern. 

Overall the house has taken on an appearance of splendour with the door and triangular window section above it as the crowning glory. As with all of our double glazed windows, they are not just built to look good. The windows also have superb thermal efficiency and carry a ten-year guarantee.

Cardiff windows and doors complete home transformation

Call Heath Windows and Doors Cardiff to arrange an appointment on 02920 650 854 or pop into our Cardiff Showroom.  Click for directions.  Alternatively, please email us at This email address is being protected from spambots. You need JavaScript enabled to view it.. We look forward to hearing from you.


Nice People to do Business With.

A family business stampThere is no pressure or obligation when you speak to us. Your home improvement purchase is important and we value your business. We treat you with respect by offering the advice that is right for you and your home. We are fair and straightforward with our quotations. No artificially inflated prices to show false discounts - Guaranteed. You can find out more about us here.

Heath Windows and Doors Ltd is Certass approved and for further peace of mind, we secure your deposits with Insurance Backed Guaranteed. Our doors and windows are fitted by exceptional installers who have a great deal of expertise backed by continuous training. This is one of the benefits of using a company that fully employs its installers. We insist that they take the time to complete a first-class job and because they are employed, they can afford to do so. All of our products carry at least a 10 year guarantee. We are Allchecked approved installers with verified reviews and Which Trusted Traders. We are regulated and authorised by the Financial Conduct Authority partnership 07762081 - We do not send to a panel of lenders but use Omni retail finance.

Covid 19.

While we will try to accommodate anyone who visits without an appointment, we strongly advise booking so that we can give you our best attention. We request that you wear masks and use the sanitiser provided at the entrance.

We're told that we have the best showroom in Cardiff and South Wales and now we have won the National Federation Award to back that up. Please pop along to our Cardiff showroom and get to know us, or call to arrange for us to visit you. Call us on 02920 650 854 or visit this page to contact us.


Showroom of the year award