Flush sash windows are recognised by how they sit flush within the frame. This offers a sleek, smooth finish making them a modern home improvement. Additionally, the windows are designed with slim sightlines which allow ample daylight to stream into your Cardiff property.

Replicating the traditional style of timber, flush sash windows are a fantastic solution to updating your home. Despite this look, the windows bring all the modern benefits of uPVC. Our expansive colour portfolio is one of the largest in the industry, giving you a wide choice of options.

Whether you want to find a fabricator, or become an installer, then we’d love to work with you. Our dedicated team or experts can help you with your requirements. Our flush sash windows are made by our top manufacturers, designed to a superior standard and ensuring longevity.

Thermally Efficient

uPVC is one of the most energy efficient materials on the market. It works to retain heat inside your Cardiff home for much longer than aluminium or wood. Not only is the framework thermally retentive, but the glass acts as a means to stop warm air from escaping. The dual pane system traps a pocket of air, allowing it to continue circulating your home.


For the benefit of our Cardiff customers, our uPVC flush sash windows are incredibly secure. The windows come with multi-point locking mechanisms. This means that your home will be safe from any unwanted intruders. Additionally, the glass is internally glazed. This means it cannot be removed from the outside, for a resilient and reliable window.


Noise can be an ongoing issue in homes near urban areas, and even near wildlife. However, you won’t have to worry about this with our fantastic flush sash windows. Keeping sound to a minimum, the profiles mean you are free from distractions. The double glazing acts as a sound barrier, which you have the option to toughen for an increased level of security.


We understand the weather in the UK can be unpredictable. That’s why our windows are expertly designed to prevent unwanted draughts and water ingress. The multi-chambered profile means that you won't suffer from weather damage. This, in turn, can save you money on your energy bills with the elimination of cold draughts and less reliance on heating.

Flush Windows Video

Heritage Window Colour Collection

Our Heritage colour collection has been specially designed to help you put together the perfect colour palette for your home.

Every home is different, and our beautiful range of colours takes inspiration direct from nature to harmonise perfectly with your home and its surroundings, ensuring it stays looking good for years to come.

Heritage White
White Grain
Ice Cream
Classic Cream
Agate Grey
Chartwell Green
English Oak
Irish Oak
Nut Tree
Golden Oak
Smooth Anthracite Grey
Smooth Matt Anthracite
Anthracite Grey
Black Ash

Flush Window Accessories

Complement your Cardiff property with our stunning hardware options. Every element of the window is yours to customise for a bespoke flush sash window.

The three beautiful styles can be tailored to your style, with a stunning colour range of offer. Explore our designs below to create a unique home improvement.

Antique Black
Hardex Chrome
Hardex Graphite
Hardex Gold
Matching Traditional Peg Stay
Antique Black
Hardex Chrome
Hardex Graphite
Hardex Gold
Matching Traditional Peg Stay
Hardex Chrome
Hardex Gold
Hardex Gold
Hardex Graphite

Luxurious and Affordable Flush Sash Windows

Enhance any Cardiff home today with a bespoke flush sash window. With innovative security measures in place, you can take advantage of a safe house. The robust uPVC is designed to last for decades without rotting or deteriorating.

The beauty of the Heritage flush sash windows is the minimal upkeep required to keep them performing. This is perfect for busy households who cannot dedicate much time to maintenance. Simply wipe down the windows and framework, and you will require little to no repair.

Sustainability is fundamental in our current society. Therefore, all our flush sash windows are fabricated from materials that can be recycled following the end of the life span. Make positive choices that will benefit the environment with Heritage.

Heritage Glass Options

Every element of the flush sash windows is down to you to customise. Our fantastic glass options will add an elegant look to any property in Cardiff. The range of ornate styles will fit any property type, for a subtle look to your home.

Increase the security of your property with the option for toughened or laminated glass. This provides you with an extra layer of home safety, maintaining a stronger barrier against force.

Glass panes can make a huge difference in the overall look of any Cardiff home. Whether you want a delicate addition or are hoping to make a statement, we’ve got the design for you.

Charcoal Sticks

Flush Sash Window Prices Cardiff

Choose our superb flush sash windows for your project in Cardiff. Here at Heritage Window Collection, we aim to provide our customers with an efficient, friendly experience. We offer guidance, advice, and always let you make the major design decisions. Each flush sash window is unique to every customer. Therefore, prices can vary based on style and specifications. Make your window bespoke with our range of colours, glass options and finishes.

Get in touch with us today to ask us anything. Use our contact form to get prices and advice on any of our services. We are happy to answer any queries you have for us. Alternatively, give our office a call on 01249 816969. You can speak to our team directly to ask any questions. We look forward to hearing from you!


ISO 9001
BSI Kitemark
Glass & Glazing Federation
Secured By Design
PAS 24

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