Ultimate Sash and Case Windows
An award-winning double glazing company providing bespoke ultimate sash and case windows where traditional design and modern technology collide.
- Seamless construction providing smooth surfaces
- No welded joints, replicating traditional sash build
- Ultra slim midrail at only 35mm depth
- Wide range of optional enhancements
About Ultimate Sash and Case Windows
Ultimate Sash and Case Windows are the UK’s most authentic timber-alternative sash window. Designed to offer the maintenance-free performance of a modern window while retaining the charm of a traditional sash window, it features deep bottom rails, run-through horns, and traditionally styled window furniture.
Some of these features are standard for sash windows, while others are unique to Ultimate Sash and Case Windows, highlighting its exceptional quality.
Why choose PT Glazing?
12 Year Guarantee
We proudly provide one of the longest and most comprehensive guarantees in the industry
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
Our VEKA Independent Network membership enables us to offer Insurance-Backed Guarantees
Ultimate Sash and Case Window Pictures
Click on any of the ultimate sash and case windows images below to have a closer look at some installations.
Brochure
Click on the brochure below for detailed information of our ultimate sash and case windows and their customisation options available.
Ultimate Sash and Case Window Customisation
We believe that ultimate 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 ultimate sash and case windows are as bespoke as they are head-turning.
Shark Fins
Catches
Tilt Knobs
Pole Eyes
Sash Lifts
Handles
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.
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.
Colours
Creating windows in a vast range of colours, from on-trend Agate 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 lifts to gold sash catches, we combine expert-led uPVC window installation with a keen eye for design, exuding a sense of timelessness.
Shark Fins
Catches
Tilt Knobs
Pole Eyes
Sash Lifts
Handles
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.
Double 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.
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.
High-Quality Ultimate Sash and Case Windows Guaranteed
We’re so confident in our bespoke Ultimate Sash and Case Windows that they come with a 12 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.
- 12 Year Guarantee on all windows
- 12 Year Guarantee on all ironmongery
- 12 Year Guarantee on double glazing
Ultimate Sash and Case Window Features
Seamless construction
Authenticity in window design relies on both what you include and what you exclude. Standard uPVC sash windows have seams from caps and covers. Our seamless technology removes these lines, creating a smooth surface that mirrors traditional timber.
Mechanical joints
Our Ultimate Sash and Case Window features authentic joinery-style mechanical butt joints, a hallmark of traditional sash windows. There are no welded seams, and the joint orientation mirrors timber, with vertical joints on the sashes and horizontal joints on the frame.
35mm midrail
An original sash window features slim timber profiles, a design element the Ultimate Sash and Case Window replicates, especially in the midrail. Our ultra-slim midrail is just 35mm deep—the slimmest available, 10% narrower than the closest competitor.
Paint-effect finish
Standard uPVC windows feature glossy or woodgrain finishes, which don’t replicate painted timber. The Ultimate Sash and Case Window offers a unique chalk-textured finish at no extra cost, eliminating gloss and false woodgrain for a more authentic look.
Ultimate Sash and Case Window Enhancements
Seahorse sash horn
Sash horns are a key feature of sash windows, with Georgian windows typically lacking them and Victorian ones using them for strength. We’ve introduced a first for uPVC: an ornate sculpted sash horn, inspired by high-end timber sashes and named “Seahorse” for its unique profile.
Staff bead
Original timber windows used sash cords and a staff bead to prevent the bottom sash from swinging inward. We’ve developed a removable staff bead to replicate this detail while still allowing the sashes to tilt for cleaning.
Deep cill
Thicker timbers are used at the bottom of timber sash windows to prevent rot from rainwater. To enhance this, we offer an optional deep cill, 50mm tall, compared to the usual 25mm, providing extra protection against wood rot.
Chamber cover
This feature required years of development and a redesign of the sash gearing. The chamber cover conceals the balance chamber, providing a smooth finish with a narrow slot for connecting the sash to the gearing.
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.
uPVC Ultimate Sash and Case Windows FAQs
No they will not. While timber sash and case windows require regular upkeep to combat jamming, Ultimate Sash and Case Windows 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 respected external organisations, including FENSA and VEKA Independent Network, helping to ensure that we consistently maintain high standards of service and workmanship. We are also registered with Companies House and fully VAT registered. Our commitment to quality, professionalism and customer service sets us apart from many other double glazing companies.
