Sash windows
Specialist wooden sash windows company
We design, manufacture and install sash windows in and around Sussex, offering beautiful joinery that will enhance homes and uplift character. As skilled joiners, we can carry out the complete process for you, installing new windows that are just as stunning as your original timber ones – but with all the benefits of modern design and insulation.
We don’t employ salespeople at Parsons Joinery. Instead, all our surveyors are well-versed in joinery design and can give you an expert opinion. You’ll have complete peace of mind throughout the process, right from your complimentary initial consultation.
Got a question about sash windows? Contact Parsons Joinery – call 01273 814870 or email enquiries@parsonsjoinery.com.
What is a sash window?
Sash windows are made up of sliding sashes, which move up or down to open the window instead of using a side hinged mechanism. There are usually two sashes inside the frame, with one sitting behind the other. Sash windows are typically found in Georgian, Edwardian and Victorian properties and are a key component of their traditional architecture.
Beautiful, bespoke timber sash windows
We believe in the beauty and quality of bespoke timber sash windows – and when our customers see the finished result, they do too. Modern sash windows offer far better thermal performance and improved security, and they can be carefully designed to ensure they retain the appearance of the originals.
Some people mistakenly think that they need casement windows to improve thermal performance. This isn’t the case at all, and technology has come a long way. You don’t need to install uPVC sash windows either – new wooden windows will offer you excellent thermal performance, while complementing your property and maintaining its historical charm. This result will look simply stunning.
There are many options available, including:
A wide range of colours
We can hand paint your windows to create a finish of your choosing
Traditional woodgrain finishes
perfect if you prefer the beauty of natural wooden sash windows
Windows of any size
we make all joinery to order to fit your exact window opening
We can design, install all sash window types, including those installed in bay windows, or those with multiple sashes. Even if your property is in a conservation area, we can find the right solutions for you.
Get a free quote
Talk to us about sash windows in Sussex and get a free, no obligation quote.
The perfect sash windows
for your property
When you’re seeking the perfect sash windows for your property, you have two key options: sash window overhaul, or sash window replacements. Find out more about your options and see which one might be right for you.
When is completely new sash windows the best option?
Our customers often have questions about whether they should replace sash windows in their properties. If you have old windows that are significantly damaged, have lots of rotting timber and gaps in the frame, it may be best to replace them altogether.
Our team of experienced joiners are specialists in sash windows and will be able to offer you all the advice you need ahead of your project. We’ll complete an initial consultation to assess the condition of your windows, offering you bespoke recommendations and providing a free, no-obligation quote.
Find out more about sash window replacements and learn about the process.
What double glazing options
are there for sash windows?
Despite their traditional style, our double glazed sash windows improve thermal efficiency, reduce draughts and cut energy bills. You’ll enjoy the beauty of period design with the comfort and performance of modern glazing.
We can also install:
Acoustic glass
to reduce noise, which can make a dramatic difference.
Safety glass
laminated glass and toughened glass are available.
Find out more about glass upgrades and the different glazing options available for sash windows.
If you live in a period property, conservation area or listed building and double glazing isn’t permitted, we can talk to you about other options – secondary glazing is often permitted, as long as it doesn’t affect external appearance.
Want to talk to a skilled and experienced team about sash windows in Sussex?
Contact us: we’ll be happy to help.
Call 01273 814870 or email enquiries@parsonsjoinery.com.
Case studies
See what we’ve achieved for previous customers – explore our case studies featuring our expert sash window installation services in Sussex and the surrounding areas.
Why choose Parsons Joinery for sash window services?
These are some of the reasons why customers choose us for sash window services:
1
Beautiful, bespoke sash windows.
We replace sash windows using traditional joinery techniques and ensure your windows are perfect for your property.
2
Unrivalled customer service.
We’re experts in home improvements and pride ourselves on our customer service, listening carefully to your requirements and making you part of the process. You’re welcome to visit our workshop and see your windows being made if you’d like to!
3
Free no-obligation quotes.
We have surveyors trained in joinery design – not salespeople. They can tell you about all the possibilities for your sash windows and will provide a free, no obligation quote.
4
Environmental responsibility.
Timber is one of the most environmentally friendly materials you can choose, as it’s both sustainable and renewable. We carefully select our timber suppliers to ensure they take their environmental responsibilities seriously.
5
Insurance-backed guarantees.
We offer a minimum of a 10-year insurance-backed guarantee with all our products.
What other window products and services do we offer?
These are the core products we offer our customers:
Sash window replacements
Sometimes, a sash window replacement is the better option. Learn more.
Glass upgrades
There are many glass upgrade options that can reduce noise and improve security.
Casement windows
Find out more about beautiful, bespoke wooden casement windows, and our services.
Contact us
Contact us to discuss your options for sash windows – we can answer all your questions and will be happy to book a free, no obligation consultation.
We can answer all your questions and will be happy to book a free, no obligation consultation.
Call 01273 814870 or email enquiries@parsonsjoinery.com.
Frequently asked questions about our sash windows
We understand that choosing a sash window company for your home improvements project is a big decision, so to help, we have answered some of the most common questions about sash windows, and we welcome the chance to talk to you in person.
Matthew & Nathan Smith
You probably need replacement if the frame is rotten, joints are loose, or you can’t repair draughts and rattles – especially if double-glazing retrofits or repair no longer restore proper function. Also, if you see water ingress, warped timber, or the sashes stick badly, those are signs your sash windows are beyond repair. See our replacement sash windows page for more information.
Typically, installing a new sash window takes 1-2 days per window for site prep, removal of the old, and fitting/proofing when everything is ready. For a full house of sash windows, or in a conservation / listed property needing detailed custom work, allow a few extra days.
No, sash windows can be made very secure, especially if they’re properly made, with strong locking mechanisms, reinforced frames, and modern security glass. Older or poorly maintained sashes without proper locks are more vulnerable, but modern upgrades dramatically reduce that risk.
Yes – well maintained or newly replaced sash windows, especially in period or heritage homes, often enhance curb appeal, improve thermal efficiency, and can increase property value. Buyers tend to pay more for homes with windows that look traditional but perform to modern standards.
Modern timber sash windows deliver reliable energy performance without sacrificing character. When double glazed and professionally draught proofed, sash windows significantly reduce heat loss and help lower energy bills.
Timber is a renewable, naturally insulating material, making wooden sash windows a sustainable choice for homeowners in Sussex looking for new sash windows that combine traditional design with modern performance.
It depends on the service. Replacing just the sashes with new fully-painted timber double-glazed units fitted into your existing frames is often similar in price to uPVC, sometimes cheaper. Full replacement costs more upfront, but watch for hidden extras: uPVC often needs scaffolding; we usually work from inside.
Many homeowners, however, still prefer timber for its durability, look, and long-term efficiency. Learn more about our timber sash and casement windows. Find out more about our timber sash and casement windows.
It depends – if your property is listed or subject to an Article 4 Direction, you’ll usually need Listed Building Consent or planning permission even for like-for-like replacements. For conservation areas the rules depend on the location and your specific council. If you’re outside those restrictions, replacing sash windows with matching style and materials often doesn’t require formal permission. Find out more about planning permission for sash windows and also, read about building regulations.
If you have any questions about planning permission in Sussex then please feel free to get in touch.