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uPVC Flush Casement Windows Northamptonshire

Traditional Meets Modern Engineering

uPVC Flush Casement Windows

T&K install stunning uPVC flush casement windows. Based in Wellingborough, we fit across Wellingborough, Northampton, Corby, Olney, Banbury, Milton Keynes and the surrounding Northamptonshire areas. Start an online flush sash window quote today.

  • Energy saving, heat retaining window design
  • Police approved multi point locking for security
  • Reduces external noise by 86%
  • Long lasting, durable uPVC construction
  • Heritage style with customisable finishes

Benefits of uPVC Flush Casement Windows for Northamptonshire Homes

Energy

Save on Energy Bills and reduce your carbon footprint

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Police Approved Security

Multi directional locking systems - Secure by design locking systems as standard

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Noise Reduction

Reducing external noise by up to 86%. Our products are perfect for reducing unwanted external noise

03

Keeping Northampton Homes Warmer Year Round

One of the most impressive benefits of our uPVC flush casement windows is their exceptional energy efficiency. Designed to deliver high-performance insulation, they help your Northampton home stay warmer and more comfortable all year, no matter what the unpredictable British weather throws at you.

Made from durable uPVC, our replacement windows are also incredibly low-maintenance. Northampton homeowners can keep them looking their best with a simple wipe using a damp cloth and soapy water ensuring your uPVC flush casement windows remain as good as new for years to come.

Long-Lasting Flush Casement Windows for Northampton Homes

What sets our replacement windows apart is that they are strong, durable, and last for years. The only thing you need to do is wipe them with a cloth so they look immaculate. When our windows are looked after correctly, they can last for up to 35 years before showing natural signs of wear and tear.

By using Profile22 frameworks courtesy of our sister company, Emplas, we can provide your Northampton home with just that. The uPVC flush casement windows we manufacture and install are as durable as it comes, and they should only ever need occasional upkeep to maintain the factory fresh standard.

Custom Flush Casement Windows for Northampton Homeowners

At T&K, we give local homeowners in Northampton and the surrounding areas complete control over their bespoke uPVC flush casement windows. Choose from a wide range of colours, including classic and woodgrain finishes, as well as hardware and handles, to create a look that perfectly complements your home.

Our windows are ideal for renovating older properties, improving thermal efficiency and security while maintaining period charm. With authentic woodgrain finishes and traditional hardware options, your home can enjoy modern performance without losing the heritage aesthetic that makes Northamptonshire properties so desirable.

uPVC Flush Casement Windows Northampton
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Durable Double Glazed Units

Our uPVC flush casement windows are double glazed, creating a robust, durable and energy efficient barrier for your home, giving you total peace of mind.

02

Slimline, Stylish uPVC

Sleek and slim Profile22 uPVC, manufactured by Emplas, is used as standard with the uPVC flush casement windows we install.

03

Versatile Visuals

Despite authentically replicating traditional timber windows, uPVC flush casement windows can bring their truly stunning design to contemporary homes too.

04

Warmer Homes

The flush sash uPVC framework is internally chambered as standard. This greatly improves thermal retention and the overall energy performance, keeping a cosy and toasty home all year long.

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Weathertight Seals

Between the framework and glazing, we install weathertight seals. They prevent the ingress of draughts, rain or snow, no matter how extreme, keeping you safe and protected.

06

Flush Fitting Design

uPVC flush casement windows, as their name suggests, are manufactured with a fully flush fitting frame akin to timber joinery.

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uPVC Flush Casement Windows Profile Options

Being a variant of the classic casement window, our flush sash profiles are available in our range of profile options. Design uPVC windows in Northamptonshire that look and operate exactly how you need them too.

Chamfered Frame

Sculptured Frame

Flush Sash Frame

Installers with 40 Years of Experience in Northampton

Why Choose T&K for Flush Sash Windows?

More often than not, uPVC flush casement windows are installed in more traditional properties here in the Northamptonshire region. In these instances, you must be working with an installer you can rely on. You need to know you’re working with a company that will treat older, heritage properties with the respect they deserve.

Regardless of what style of property you live in, you can place your full trust in the T&K team. We have been serving local Wellingborough and Northamptonshire homeowners for over four decades and deliver a standard of service matching that level of experience. Our transparent and collaborative approach will make for a totally fulfilling experience.

uPVC flush casement windows are side-hinged windows where the frame and opening sit flush, creating a smooth, flat exterior. They combine the traditional look of timber casement windows with the low-maintenance, high-performance benefits of modern uPVC.
These windows are low maintenance, energy efficient, and secure with multi-point locking. They offer a sleek, clean exterior and are highly versatile, available in a variety of colours, woodgrain finishes, and dual-colour options to suit both modern and traditional casement-style homes.
The key difference is appearance: flush casement windows sit level with the frame for a smooth, contemporary look, whereas standard casement windows often overlap or project slightly beyond the frame. Functionally, both provide excellent ventilation, energy efficiency, and security.
Yes. Modern flush casement windows use advanced multi-chamber profiles and high-performance glazing to reduce heat loss, improve comfort, and lower energy bills. They meet current building regulations for thermal efficiency.
When they’re properly installed, flush windows do a great job of keeping water and draughts out. The seals are designed to be tight, so you shouldn’t have to worry about leaks or cold air sneaking in.

Glazing Options

Colour & Finish Options for uPVC Flush Casement Windows to Suit Every Northamptonshire Home

The uPVC flush casement windows that we install can be finished in a whole range of colours. This includes the option for a dual colour finish, whereby you can select a different internal and external shade. The choice is yours!

Standard Colours

Claystone
Cream
Dark Green
Dark Oak
Grey Cedar
Irish Oak
Mahogany
Anteak
Anthracite Grey
Basalt Grey
Black Brown
Brilliant Blue
Chartwell Green
Cream
Dark Red
English Oak
Hazy Grey
Light Oak
Natural Oak
Rosewood
Rustic Oak
Signal Grey Smooth
Slate Grey
Swamp Oak
Walnut
White
Sage Smooth
Sienna PR
Steel Blue

Premium Colours

Anthracite Grey
Claystone
Cream
Pebble Grey
Sage Smooth
White Grain

Special Colours

Basalt Grey
Black Ulti Matt
Buckingham Grey
Flemish Gold Smooth
Hazy Grey Finesse
Honey Oak
Kensington Grey
Pyrite
Sage Smooth
Silver D Smooth
Windsor
Benefits Background

uPVC Flush Casement Windows Furniture & Hardware

With T&K, you can configure and design your new uPVC flush casement windows down to the finest detail. In addition to durable hardware, you can select from a range of furniture, including authentic handles in an array of finishes.

window profile

Easy Clean Fire Egress Hinges

Lipped slider for enhanced smooth operation. They also allow for easy friction adjustment without metal to metal contact. Restricted hinge options are available to protect the most vulnerable.

window profile

Stainless Steel Friction Stays

Available in ferritic 430 or austenitic 304 stainless steel for enhanced corrosion resistance. Our friction stays are durable and weather resistant tested to 30,000 open cycles for excellent longevity.

window profile

Customisable Handle Options

Guaranteed for 10 years, our handles are available in various colours to complement any window style. Our austenitic 304 stainless steel ergonomic handles are also rust resistant for extra durability.

window profile

Multi-Point Locking Systems

Maximum security multi-point locking systems provide enhanced protection against forced entry. Additional dog bolts also improve stability around the entire frame, keeping you safe and sound.

window profile

Trickle Vents

Available in uPVC and aluminium, and in a range of colours to match any frame. These vents will help keep your home cool and comfortable no matter the weather. They also comply with the latest building regulations.

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Accredited Weather Performance

Our windows provide superior weather sealing and draught proofing performance, conforming to the exacting standards of the BS-36751 accreditation. This will ensure your home stays warm and dry.

window profile

Docking System Bolt

A patented bolt into the keep docking system prevents sideways movement of the bolt when under attack, helping keep your property safe and secure.

shootbolt

Superior Shoot Bolt

This heavy duty bolt has up to 300 per cent greater contact area against competitor shoot bolts. As a result, you'll have a smooth operation for years to come.

window profile

Durable Hardware

Our hardware is resistant to salt and spray (BSEN1670) and cycle tested over 50,000 times for ultimate long term performance. You can forget about the need for replacement when you choose T&K.

Double Glazing Reviews T&K

Testimonials

Happy Customers

I’d firstly like to thank the whole team at T&K. We’re extremely happy with the finished project. Excellent service from start to finish. All tradesmen were polite, professional, tidy and really helpful where needed. Julia and the team in the office were great and helped with any last minute design changes and questions we had. Now we can’t wait to enjoy our beautiful new conservatory. I would highly recommend T&K if you’re looking for a quality professional installation.
Happy Customer
What a wonderful experience, our salesperson Greg Timbers instantly made us at ease at the first point of contact and was very knowledgeable and informative at every step of the process of choosing and designing our perfect conservatory.
We would fully recommend both Greg and T&K based on our experience
Carl Scott
A thoroughly good experience working with T&K, from the initial design stage going through towards the extension completion. All technical issues including the council and local water authority were taken care of by T&K. The builders were very friendly and were always proactive in advising myself on better solutions if they felt so. This is the reason why I opted for T&K and that is for a trusted experience.
Happy Customer
We have used T&K for a new door and complete window installation.
From the survey stage, receiving a quotation and final installation, the processes were all straight forward and of course we are more than pleased with the quality of the product and just as important the workmanship and politeness of the fitters.
Would not hesitate to recommend T & K to family and friends
Paul Curtis
From the design, dismantling of the old sun room to installation of the new, what we call a conservatory was really amazing the workmanship of the team and speed at which it all went together was stunning. the design and measurements were exact, it really went together like a giant jigsaw, we could not be more pleased with the outcome.
Richard Parker
The team at T&K were amazing from start to finish. Professional and punctual from the moment of engagement, quotation, surveying, installation and post-installation service. Extremely friendly and high quality team and the product is definitely worth the investment.
Stan Richardson
We were more than happy with all aspects of our conservatory installation, right from Shaun the salesman to the guys on the final visit. All the work went through like clockwork, and we were very happy with the end result. Everyone was so helpful and friendly.
Keith Green
The only time we did not use T&K (it was for two windows and one door) we were so disappointed in the products, we had them taken out and replaced by T&K. All our windows and doors have now been done twice by T&K, and we would never even look at anyone else.
Elizabeth Pridmore
We have used T&K for a new door and complete window installation. From the survey stage, receiving a quotation and final installation, the processes were all straight forward and of course we are more than pleased with the quality of the product and just as important the workmanship and politeness of the fitters. Would not hesitate to recommend T&K to family and friends.
Paul Curtis
My wife and I had windows installed some 15 years ago from T&K and they look as good today as when they were first installed, so much so that we recently had our front, back and two French doors installed. We could not be happier with the results.
Richard Simmons
The T&K team were amazing from start to finish. Professional and punctual from the moment of engagement, quotation, surveying, installation and post-installation service. Extremely friendly and high quality team and our windows and doors were definitely worth the investment. Thanks for your efforts. We wouldn’t hesitate to recommend T&K!
Rachel Phillips
I have used T&K on three separate properties now and they have been great. Cost and product as well as installation as promised. Better still your energy cost nose dive in the winter. Highly recommend!
Philippa Sharp
I am so pleased with our recent installation from T&K that I felt compelled to leave this review. Shaun was respectful and patient in dealing with our request and everything that he promised T&K delivered. We received quotes from four other companies, and I am so happy we chose to go with T&K.
Paul-David Symeou
T&K installed a new door for us the whole service has been outstanding from the visit to the showroom to the day of the installation. All members of the team outstanding could not have asked for more. Highly recommend this company.
Steve Raher
Everyone from the initial sales consultant Steve, to the surveyor, builders, plumbers, electrician, planners and installers were exceptionally professional. I would definitely recommend T&K home improvements to family and friends.
Jonathan Lingard
Have used T&K for Windows etc on three properties. Delighted with quality, installation and after sales service. Have just ordered a conservatory from them!
Michael Hulands
replacement black casement windows in northamptonshire

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uPVC Flush Casement Window Prices, Wellingborough & Northamptonshire

Start your free double glazing quote today with T&K, or book a showroom consultation with us instead.

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© 2025 T&K Home Improvements | Registered No. 02172185 | VAT Number: 576468196 - Registered in England and Wales – FRN 794188

T&K Home Improvements Limited of 2-6 Huxley Close, Park Farm South, Wellingborough, NN8 6AB act as a credit broker and not the lender. Credit is provided by Novuna Personal Finance, a division authorised and regulated by the Financial Conduct Authority. Credit is subject to application and status. Terms & conditions apply.