Sash and Case Windows
An award-winning double glazing company that provides bespoke sash and case windows where traditional design and modern technology collide.
- A touch of Georgian charm in the home
- Stay corrosion-free, with galvanised steel reinforcement
- Go authentic, with a traditional deep bottom rail
- Enjoy the elegance of run-thru sash horns
About Sash and Case Windows
By bringing together uPVC sliding sash frames, double glazing, and sprung counterbalance sashes, our windows are worlds away from their previous version, where iron and lead sash weights sat upon a waxed cord, creating the perfect storm for breaking, sticking, and costly maintenance work.
Separated by glazing bars, with at least one movable panel, our uPVC sash and case windows offer all the architectural features associated with traditional sash windows, from brass ironmongery and external sash horns to internal rings or hooks, with results that speak for themselves.

Why choose PT Glazing?

15 Year Guarantee
We provide one of the longest guarantees in the industry...and also cover the labour costs

5/5 Customer reviews
There is a reason why we have received 5/5 customer reviews across all social media platforms

Remove & Recycle
We will remove and take away all of your old frames and have them recycled appropriately

Insurance Backed Guarantee
As a proud member of the VEKA Independent Network, we provide IBG on all of our frames
Sash and case window pictures
Click on any of the sash and case windows images below to have a closer look at some of our installations.
Sash and case window customisation
We believe that sash and case windows should elevate the appearance of your home, enhancing curb appeal and bringing your home exterior together. With a multitude of colours, styles, and sizes to choose from, our windows are as bespoke as they are head-turning.
With a multitude of colours, styles, and sizes to choose from, our bay windows are as bespoke as they are head-turning.
Sash Eyes
Sash Pulls
Sash Knobs
Cam Locks
Double Glazing

Paving the way towards cosy, noise-free homes, our double-glazing services are designed to propel home comfort levels. Driving energy efficiency, reducing condensation levels, and creating a barricade against cold drafts, our double-glazing installers will place two ultra-robust glass panes together, divided by a layer of argon gas.
Triple Glazing

As the driving force behind toasty homes, reduced noise pollution, and wallet-friendly energy bills, adding an extra pane of glass can make all the difference. Our triple glazing option takes heat retention a step further, trapping in warmth to help you get the most out of your radiators. When energy costs are going through the roof, don’t let your heat escape through your windows.
uPVC

Paving the way towards cosy, noise-free homes, our double glazing services are designed to propel home comfort levels. Driving energy efficiency, reducing condensation levels, and creating a barricade against cold drafts, our double-glazing installers will place two ultra-robust glass panes together, divided by a layer of argon gas.
Aluminium

Creating an appearance that you have to look at twice, our aluminium windows are renowned for offering the best of both – an exclusive, contemporary look with all the benefits of slim frames. Flooding your rooms with light, offering vast views of your surroundings, and steering clear of the outdated bulky look, build a frame design that works for you, from our menu of glazing options to our unparalleled colour selection.
Obscure Glass

Ensuring you can enjoy all the benefits of natural light, without compromising on your privacy, our window installation service is focused on reducing glass transparency, while preserving your home interiors. Get in touch to find out about our broad range of patterns, designs, and opacities.
Toughened Glass

At five times stronger than traditional glass, Toughended glass, also known as TSG, is renowned for its ultra-safe shattering process. Designed to split into small fragments in the event of a break, our window fitters in Glasgow and Edinburgh strive for maximum strength, minimal risk. Whether you’re installing toughened glass to meet building regulations or seeking a safety net for high footfall areas, this service is centred on equal parts safety and architectural excellence.
Laminated Glass

Taking the gold for its unwavering strength, laminated glass is unmatched in its insulation and shock resistance properties. Meticulously manufactured to meet rigorous safety standards, our laminated glass is designed to remain in place when smashed, benefiting from a centre layer of polyvinyl butyral to avoid hazardous shards.
Georgian Bars

Creating a charming, cottage feel, Georgian bars give the illusion of smaller panes of glass, slotting seamlessly into traditional homes. While Georgian bars are often placed between glazing layers for optimal convenience, the panel can be positioned externally, adding character to your property.
Mechanical Joints

Recognised as a superior alternative to welded joints, mechanical joints are renowned as a visually striking feature, incorporating traditional charm into home exteriors. Combining specialist woodwork with next-generation installation techniques, our window fitters in Edinburgh and Glasgow are painstakingly trained to meet ever-evolving energy-efficiency, security, and noise-reduction demands, while preserving the art of mechanical joints.
Mitre Joints

Ideal for homeowners chasing a fresh and contemporary appearance with its diagonal joint structure. Introducing mitre joints to sash windows offers the advantage of clean lines, superior performance, and extreme strength.
Click on the image to view the brochure which provides additional information and available options for your new windows.
Colours
Creating windows in a vast range of colours, from on-trend White and ultra-sleek Anthracite Grey to fostering a quaint, cosy feel with Chartwell Green, we believe that durability and aesthetics can walk hand-in-hand.
Hardware
Transforming run-of-the-mill windows into statement features, our hardware represents the ultimate conversation starter. From solid chrome sash pulls to gold sash eyes, we combine expert-led uPVC window installation with a keen eye for design, exuding a sense of timelessness.
Sash Eyes
Sash Pulls
Sash Knobs
Cam Locks
Glazing
Our role extends far beyond double glazed window installation. Weaving your unique goals, style preferences, and property needs through our glazing recommendations, we’ll place low-emissivity glass at your fingertips. As the premier choice for double and triple glazing in Scotland, we’re focused on the details, from catapulting thermal efficiency to optimising visual allure.
Double Glazing

Paving the way towards cosy, noise-free homes, our double-glazing services are designed to propel home comfort levels. Driving energy efficiency, reducing condensation levels, and creating a barricade against cold drafts, our double-glazing installers will place two ultra-robust glass panes together, divided by a layer of argon gas.
Triple Glazing

As the driving force behind toasty homes, reduced noise pollution, and wallet-friendly energy bills, adding an extra pane of glass can make all the difference. Our triple glazing option takes heat retention a step further, trapping in warmth to help you get the most out of your radiators. When energy costs are going through the roof, don’t let your heat escape through your windows.
Range
Our role extends far beyond double glazed window installation. Weaving your unique goals, style preferences, and property needs through our glazing recommendations, we’ll place low-emissivity glass at your fingertips. As the premier choice for double and triple glazing across Scotland, we’re focused on the details, from catapulting thermal efficiency to optimising visual allure.
uPVC

Paving the way towards cosy, noise-free homes, our double glazing services are designed to propel home comfort levels. Driving energy efficiency, reducing condensation levels, and creating a barricade against cold drafts, our double-glazing installers will place two ultra-robust glass panes together, divided by a layer of argon gas.
Aluminium

Creating an appearance that you have to look at twice, our aluminium windows are renowned for offering the best of both – an exclusive, contemporary look with all the benefits of slim frames. Flooding your rooms with light, offering vast views of your surroundings, and steering clear of the outdated bulky look, build a frame design that works for you, from our menu of glazing options to our unparalleled colour selection.
Glass
We believe that your windows should suit your needs – not the other way around. Giving you complete control over your window style, down to the minute details, we’ll give you the opportunity to select the glass that works for you, whether you’re big on privacy, thermal efficiency is key, or safety comes first. From ultra-strong toughened glass and charming Georgian bars to the extra layer of privacy offered by obscured glass, it’s all in the details.
Obscure Glass

Ensuring you can enjoy all the benefits of natural light without compromising on your privacy, our window installation service is focused on reducing glass transparency, while preserving your home interiors. Get in touch to find out about our broad range of patterns, designs, and opacities.
Toughened Glass

At five times stronger than traditional glass, toughened glass, also known as TSG, is renowned for its ultra-safe shattering process. Designed to split into small fragments in the event of a break, our window fitters in Glasgow and Edinburgh strive for maximum strength, minimal risk. Whether you’re installing toughened glass to meet building regulations or seeking a safety net for high footfall areas, this service is centred on equal parts safety and architectural excellence.
Laminated Glass

Taking the gold for its unwavering strength, laminated glass is unmatched in its insulation and shock resistance properties. Meticulously manufactured to meet rigorous safety standards, our laminated glass is designed to remain in place when smashed, benefiting from a centre layer of polyvinyl butyral to avoid hazardous shards.
Georgian Bars

Creating a charming, cottage feel, Georgian Bars give the illusion of smaller panes of glass, slotting seamlessly into traditional homes. While Georgian Bars are often placed between glazing layers for optimal convenience, the panel can be positioned externally, adding character to your property.
Joints
Put simply, all joints are not equal. Despite being frequently neglected by inexperienced installation teams, we view joints as one of the most essential elements to get right as they are responsible for maintaining the strength of your window frame, and creating a safety net against thieves. Allowing you to choose between mechanical or mitre, this detail will impact both the look and performance of your flush sash windows.
Mechanical Joints

Recognised as a superior alternative to welded joints, mechanical joints are renowned as a visually striking feature, incorporating traditional charm into home exteriors. Combining specialist woodwork with next-generation installation techniques, our window fitters in Edinburgh and Glasgow are painstakingly trained to meet ever-evolving energy-efficiency, security, and noise-reduction demands, while preserving the art of mechanical joints.
Mitre Joints

Ideal for homeowners chasing a fresh and contemporary appearance with its diagonal joint structure. Introducing mitre joints to sash windows offers the advantage of clean lines, superior performance, and extreme strength.
Brochure
Click on the image to view the brochure which provides additional information and available options for your new windows.
High-Quality Sash and Case Windows Guaranteed
We’re so confident in our bespoke Sash and Case Windows that they come with a 15 year guarantee. Whether a breakage occurs, you notice wear and tear, or your product simply doesn’t meet our stringent quality standards, we’ll repair or replace it with the click of a button.
- 15 Year Guarantee on all windows
- 15 Year Guarantee on all ironmongery
- 15 Year Guarantee on double glazing
Benefits of sash and case windows
Unparalleled Security Standards
By bringing together ultra-strong hardware, robust locking devices, and reinforced glass, this option is renowned for keeping the warmth in, and intruders out. It’s the best way of protecting your most valuable asset, putting security in the spotlight.
A Modern Take on Traditional Design
Whether you’re opting for a contemporary feel or a splash of Georgian character, we’ll give you complete control of the finished product. Visually exciting, timeless, and easy to install, you can add an extra layer of allure with our run-thru sash horn, regarded as the leading vertical slider design configuration on the market.
Customer Feedback
Everything we do is driven by an unwavering dedication to our customers. We thoroughly enjoy the work we do and are proud to know that our customers feel secure and happy with services that we provide.
Eddie and Peter were always on hand, easy to reach, and consistently responsive to my calls and messages. They took the time to explain everything patiently, making sure I fully understood the process. The entire team was punctual, tidy, courteous, and highly professional throughout.
Not only was the service exceptional, but their pricing was also competitive, which made the decision even easier. Given that my home is in a conservation area, I expected challenges, but they handled everything seamlessly. I honestly can't imagine getting better service from any other double glazing company, and I wouldn’t hesitate to recommend them to anyone.
Thank you so much
The new windows are identical to our 1904 draughty windows but are draught free and look amazing.
After the installation, they came back to adjust the door to ensure everything was perfect. What truly stood out was their standards of work, going above and beyond my expectations.
Their attention to detail and excellent customer service made the whole process stress-free. I highly recommend PT Glazing to anyone looking for quality doors and exceptional service.
Peter fitted my windows and new front door.. Again no problems at all
Peter is a great guy.his work is outstanding and he is friendly and there was nothing to sweep.up - he did it all
I am delighted with the end result.
I would recommend PT glazing
Thanks guys
Peter and his colleague worked diligently, taking care and were respectful of my property. My door fiited, my property was left clean an tidy with no debris of the fiiting evident.
My new door looks fantastic and I will have no hesitation in using PT Glazing for any future work
When Peter and his colleague fitted our door it was done with professionalism and courtesy. They tidied up as they went along and there was no tidying up for us to do at the end. The job was done to a high standard.
If I needed any other glazing jobs done I wouldn’t hesitate to use PT Glazing and would recommend to my friends and family.
The job delivered by Peter and his team is first class. There were a few issues which were listened to and dealt with. Outstanding customer service, communication excellent throughout.
I am delighted with the finished windows. Peter even noticed my front door handle was broken and replaced it with a new one without being asked!
Highly highly recommend PT Glazing.
Their workmanship, professionalism and value for money is unmatched and I would recommend them to any one looking for windows or doors.
Thanks peter!
Highly recommended.
after himself done in 2 days 10/10 would definitely use PT GLAZING again actually asked for a price for to get my windows done 👌♥️
Would highly recommend.
Denise
job they did on schedule. We are extremely happy with our new windows and would certainly use PT Glazing again and recommend them to others in confidence that they would receive an excellent service.
I can fully recommend the quality of the product and the professionalism of the team
uPVC Sash and Case Windows FAQs
No they will not. While timber sash and case windows require regular upkeep to combat jamming, uPVC alternatives are meticulously designed to operate smoothly over their lifespan, avoiding costly replacements and inconvenient sticking.
Absolutely! Whether you’re seeking a set of windows in keeping with your home’s period features or you’re simply keen to avoid drastic changes, we take pride in injecting our designs with your most intricate needs, preferences, and goals.
Overflowing with benefits, uPVC’s appeal extends far beyond its low-maintenance nature, unwavering convenience, and accessible price tag. Renowned for its versatility, uPVC windows are designed to slot into any home, from timeless period properties to modern head-turners. With the ability to replicate the appearance of original timber sash, without the associated upkeep, costs, and lack of durability, uPVC has quickly become the obvious choice for décor-loving homeowners.
Balancing style and practicality, sash windows incorporate world-class mechanisms, supporting enhanced ventilation, fool-proof safety features, and easy cleaning methods. Each of the two frames – known as sashes – operate using a spring balance system, allowing them to slide up and down. The top and bottom sash can also tilt inwards for cleaning purposes.
Exuding a sense of timelessness, Georgian sash windows are regarded as one of the oldest window styles available, adding a touch of ageless sophistication to classic properties. Featuring a design known as ‘six over six,’ where six small panes of glass sit upon each of the two frames, Georgian windows are designed to appear authentic, mimicking the appearance of genuine timber.
Combining a distinctly low-maintenance nature with all the benefits of high-performance windows, this option is undoubtedly a homeowner’s favourite. Symmetrical, timeless, and visually appealing, with a quintessentially British feel, each sash has the ability to slide vertically over the other, paving the way for enhanced ventilation.
We are vetted by multiple external entities including FENSA and VEKA-IN who ensure we maintain our top class service. As a reputable company, we are registered with the FCA as IAR, registered with Companies House and fully VAT registered. There is not many double glazing companies that can match our high standards.