Request a FREE Online Quote
Read our Reviews

Google Reviews

Traditional sash windows add a touch of beauty to any South Wales home

Request a Quote

Sash / Vertical Slide Windows

If you’re looking for high-quality sash windows in Cardiff and the surrounding area, then look no further than South Wales Windows & Doors. We make perfect made-to-measure UPVC sash windows for your property, adding character and elegance whatever its age and style.

Upon request, we can also include many additional features to add a more authentic look to your sash windows, such as decorative horns, a deep bottom rail, internal and external Georgian inserts, and decorative glazing.

Why choose our UPVC sash windows?

Our sash windows offer a superior standard of functionality and efficiency, which means that the draughts, shakes, stiffness and difficulty with cleaning that occurs with traditional sash windows is eliminated. Available in a variety of different UPVC shades, our sash windows offer a combination of traditional styling, with high-end, 21st century performance.
Window Designer
Try Our Online Window Designer!
Create Your Window

UPVC Sash Window Gallery

Take a look through this gallery if you’d like to see some of the UPVC sash windows we have installed over the years. As you can see, UPVC sash windows add a traditional touch to the exterior of your home. We think they are a truly stunning choice of UPVC window.

Request a Quote

Other benefits of choosing our sash windows include:

Home Visits

Our team of advisers, designers and installers will be there to assist you every step of the way as you choose your new UPVC sash windows. We will help you turn you sash window dreams into a reality.


We have decades of experience when it comes to installing UPVC sash & vertical slide windows - our knowledge and skills are unrivalled, as are our competitive prices.


Thermally efficient double glazing which incorporates Low E glass will ensure that precious heat won't escape to the outside. Double pile weather strips are fitted around each sash and across the meeting rails to keep out draughts. This means your house will maintain a comfortable temperature for longer.


Pre-tensioned spiral balances and sash lifts ease the opening and closing of the sashes, whilst the limit stops restrict the sash opening to 100mm; a useful security feature if you have children.
If you would like any further information regarding our sash windows in the Cardiff and South Wales area, please fill in our online enquiry form or call us on 02920813488.
Great service from start to finish and very competitive on price. John was happy to call to the house as many times as needed for me to make up my mind! Cat in the office couldn't have been more helpful and made the whole process really easy and finally the fitters did a fab job . I love my new door!!
Beth Covill

FENSA Registration

We are part of the competent person scheme for the replacement of windows, doors, roof windows and roof lights in the UK.

An Insurance-Backed 10 Year Guarantee

Our guarantee ensures your windows look and work as they should for years after they’re installed.

Free, No-Obligation Quotations

We are happy to discuss your ideas and any of our products to help you make your decision, free of charge. Submit a quote request form online today.

Positive Reviews from Happy Customers

We have received some excellent feedback from our customers, take a look at our testimonials page to find out more.