Fairtrade Customer Reviews

Over 3,700 independent reviews 9.48/10 average score

Learn more

Proudly celebrating 23 years trading

40% off offer

Based in Cheddar, Majestic Designs (UK) Ltd is one of Somerset's highly recommended double glazing specialists.

Call us now on 01934 741 294

Do I Need to Replace My Sash Windows?

2nd December 2025 |

uPVC Windows

White uPVC sliding sash windows

The replacement of timber sash windows with modern uPVC allows homeowners to combine classic charm with cutting edge performance.

If your property still has its original period features, you might be wondering how you can refurbish and renovate your home without compromising its unique historical aesthetics. Many homeowners find it difficult to part with the traditional features of their property. But without the benefits of modern conveniences such as heightened security and energy efficient technology, you could find yourself dealing with costly utility bills, poor insulation and damp.

Although your timber sash windows may look beautiful, the reality is often a home lacking in thermal retention and harbouring potentially costly energy efficiency issues. Old timber windows may retain the traditional look of a bygone era, but they were never designed to retain heat. Over time, timber windows often warp, rot and crack, leading to problems like low security, draughts and little resilience in the face of adverse weather.

If you want to keep the period character of your home while enjoying modern conveniences that keep your property secure, warm and dry, uPVC sash windows could be the answer.

Why Do Sash Windows Cause Problems?

Traditional timber sash windows were a staple of Georgian, Victorian and Edwardian architecture. They look wonderful and suit the character of older properties perfectly. The trouble is, they were designed at a time when energy efficiency simply was not a consideration. Single glazed timber windows allow heat to escape quickly, which means your heating system has to work harder to keep your home comfortable.

Timber is also a material that needs constant care. Without regular painting, sealing and maintenance, wooden frames can deteriorate surprisingly quickly. Moisture gets into the grain, causing swelling in wet weather and shrinking when things dry out. This movement creates gaps around the frame, letting cold air whistle through and warm air escape.

In some cases, rot sets in and weakens the structural integrity of the window. You might notice that the sashes no longer slide smoothly, or that they rattle in the wind. These are signs that your windows are no longer doing their job properly.

Refurbishment vs Replacement

If your home still has its original timber sashes, you may be wondering whether you can simply refurbish your existing windows rather than replace them entirely. It is certainly possible to restore old sash windows, and in some cases this approach makes sense. Refurbishment can involve draught proofing, repairing damaged sections and adding secondary glazing.

However, even refurbished timber windows come with limitations. They still require regular maintenance to keep them in good condition. The wood will continue to need painting every few years, and any repairs are likely to be only temporary fixes for a material that is gradually deteriorating.

Replacing your sash windows will have a larger upfront cost than refurbishment. But when you look at the long term picture, replacement can actually save you money. Opting for uPVC sliding sash windows allows you to retain the traditional look of your original windows without compromising on modern performance. uPVC is long lasting and requires very little maintenance, in contrast to older style timber windows that demand consistent upkeep.

What Are uPVC Sash Windows?

uPVC sash windows are a modern alternative to traditional timber versions. They are designed to look just like the originals, with vertically sliding sashes that move up and down within the frame. The difference is in the material. uPVC, which stands for unplasticised polyvinyl chloride, is a strong and durable material that does not rot, warp or need painting.

Modern manufacturing techniques mean that uPVC sash windows can now closely replicate the appearance of traditional timber. Features like slim sightlines, authentic sash horns and woodgrain foil finishes mean you do not have to sacrifice classic style for modern performance.

White Sash Window

Suitable in both traditional and contemporary properties, uPVC sash windows are engineered with energy efficiency in mind.

Sash Windows at Majestic Designs

The team at Majestic Designs has been engineering our range of bespoke sash windows for over 22 years. We manufacture our products right here in Somerset, to your exact specifications in our state of the art factories. With a 10 year guarantee across our range of windows, you can rest assured your project will be completed with the highest quality materials to your exact requirements.

As proud members of the Cheddar community, Majestic Designs employs specialists local to Somerset who know the area through and through. Our FENSA accredited and MTC registered teams of expert installers have built a reputation for outstanding customer service, a genuine understanding of local architecture and, of course, expert craftsmanship.

We understand how important it is to preserve the character of your home while making improvements that enhance comfort, efficiency and security. That is why we take the time to discuss your needs, explain your options and help you choose windows that are right for your property.

If you are thinking about replacing your traditional sash windows and would like more information about our range, contact the team at Majestic Designs today.

With over 3,700 independent reviews on Fairtrades.co.uk, Majestic Designs are proud to have earned an above 9.48/10 rating in customer satisfaction Click to find out more

Customer Testimonials

“The fitting team were a credit. Clean, efficient and pleasant to know. Site left in a very clean state. Thank you.”

Mr & Mrs Parrott, Weston-Super-Mare

“All round excellent service. Used you in our previous home and was delighted with both installations you have done for us. Thank you.”

Mrs Hammerley & Mrs Manson, Weston-Super-Mare

“I cannot fault anything & best thing I ever did. I am relieved & happy that I have attractive doors & windows. Thank you.”

Mrs O'Connor, Tiverton

“Thank you!”

Mrs Twitchett, Puriton

Local area installations

Serving clients across Somerset and the South West

Majestic Designs install quality double glazing products throughout Somerset. From Taunton to Yeovil and Weston-super-Mare to Wells; our insistence on quality installations and outstanding customer care remains the same. With our factories and showroom in Cheddar, we are conveniently located in the heart of Somerset, with easy access to the surrounding towns and villages. As part of the local community, we are dedicated to improving the lives of all our customers and by employing a local workforce we are investing in the future prosperity of the area.

BFRC Accreditation FENSA Accreditation Energy Saving Accreditation Authorised Retailer Accreditation Trustmark Accreditation Endurance Doors Pilkington Glass Cyber Essentials Logo HomePro Logo