Upgrade your home with premium windows in Hinckley, offering exceptional durability, energy efficiency, and stylish designs.
From casement to tilt & turn, we provide tailored solutions for every property.

With GGFI insurance-backed guarantees, your investment is protected even if unforeseen circumstances arise. Enjoy 10 years of confidence and coverage.

All our installations meet building regulations, ensuring safety, energy efficiency, and compliance. Trust our FENSA accreditation for peace of mind.
At Onyx Windows, we take pride in delivering a window installation process tailored to your home’s needs. Our service ensures precision, quality, and customer satisfaction every step of the way.
We begin with a detailed consultation to understand your requirements, style preferences, and energy efficiency goals. Our expert team will guide you through the various window styles, materials, and finishes available.
Every window we install is made to measure. Our experienced fitters conduct accurate measurements to ensure a perfect fit, minimising drafts and maximising insulation.
Choose from a wide range of window styles, including casement, tilt & turn, French, and shaped windows. Customise with your choice of colour, finish, and glazing options to suit your home.
Our trained and certified installers ensure a hassle-free process. We carefully remove your old windows and fit the new ones with precision, minimising disruption to your property.
All our windows are backed by a robust guarantee, offering peace of mind. Our team is always available to answer questions or assist with maintenance advice post-installation.

Casement windows deliver incredible flexibility with elegant designs and unique finishes to complement any property. Hinged at the side or top, they offer excellent security, weather resistance, and outstanding energy efficiency.

Tilt & turn windows provide a modern, multi-functional solution. Tilt them inward for ventilation or fully open them for simple cleaning and emergency access. These windows combine practicality with energy-saving performance.

French windows add sophistication and functionality to any home. Featuring dual outward openings, they enhance airflow while also serving as a convenient and secure fire escape solution.

Add a unique touch with bespoke-shaped windows. From rounded portholes to Gothic arches, these designs enhance your home’s character and blend seamlessly with its architectural style.
Upgrade your property with energy-efficient, stylish windows installed by experts in Hinckley.
Contact us today for a free quote and friendly advice tailored to your needs.
Our team takes care of everything, from initial consultation to final inspection. We handle removal, fitting, and finishing touches, ensuring a process that leaves your home with perfectly installed, energy-efficient windows.
With advanced multi-chamber frames, high-performance glazing, and A-rated efficiency, our windows combine sustainability with savings, making them a smart, eco-friendly investment for any property.
Benefit from our trusted reputation built over two decades.
Certified installations meeting the highest industry standards.
Get the best value without compromising on quality.
Save energy while reducing your environmental footprint.
Homeowners can choose from various window types, each offering unique features:
Casement Windows: Hinged at the side, these windows swing outward, providing excellent ventilation and unobstructed views.
Double-Hung Windows: Featuring two operable sashes that slide vertically, they allow for versatile airflow and are easy to clean.
Bay and Bow Windows: Protruding outward from the home’s exterior, these windows create additional interior space and offer panoramic views.
Awning Windows: Hinged at the top and opening outward, they are ideal for ventilation even during light rain.
Sliding Windows: With sashes that slide horizontally, they are perfect for spaces with limited vertical clearance.
Tilt and Turn Windows: Offering dual functionality, they tilt inward for ventilation and swing fully open for easy cleaning and emergency egress.
Enhancing window energy efficiency involves several strategies:
Upgrade to Double or Triple Glazing: Multiple panes of glass with insulating gas layers reduce heat transfer.
Install Low-E Glass: Low-emissivity coatings reflect infrared light, keeping heat inside during winter and outside during summer.
Use Weatherstripping: Sealing gaps around windows prevents drafts and energy loss.
Apply Window Films: Reflective films can reduce solar heat gain and UV exposure.
Consider Window Treatments: Insulated curtains or blinds add an extra layer of thermal resistance.
uPVC windows are known for their durability and longevity. On average, high-quality uPVC windows can last between 20 to 30 years with proper maintenance. However, some premium options, like those offered by Camden Group, come with a 15-year manufacturer’s warranty, providing peace of mind regarding their durability.
uPVC is resistant to weathering, meaning it won’t warp, rot, or corrode like wood or metal frames. To ensure a long lifespan, clean the frames regularly with soapy water and check the seals and hardware for wear and tear. Proper installation also plays a key role in maximising their lifespan, so always choose a qualified installer.
The main difference between double and triple glazing is the number of glass panes. Double glazing consists of two panes of glass with an insulating gas layer in between, while triple glazing includes an additional pane and gas layer.
Triple glazing offers better insulation, with U-values as low as 0.8, making it ideal for colder climates or homes prioritising energy efficiency. It also provides improved noise reduction and enhanced security due to its additional layer. However, triple glazing is heavier and more expensive than double glazing, so it may not always be the best option unless you live in a particularly cold or noisy environment.
Double glazing is usually sufficient for most homes, offering excellent energy efficiency and a more affordable price point. Assess your home’s specific needs and consult a professional to determine the best choice.
uPVC windows have several advantages over timber and aluminium. They are cost-effective, low-maintenance, and highly energy-efficient, making them a popular choice for homeowners. Unlike timber, uPVC doesn’t warp, rot, or require regular painting, making it ideal for long-term durability. It’s also resistant to weather conditions and corrosion.
Compared to aluminium, uPVC provides better thermal insulation due to its non-conductive nature, helping to keep your home warmer. However, aluminium frames are often slimmer and offer a more modern aesthetic, making them a preferred choice for contemporary designs. Timber windows, on the other hand, are traditional and offer natural charm but require more upkeep.
Ultimately, the choice depends on your budget, style preference, and maintenance expectations. uPVC is a versatile and practical solution for most homeowners.
There are several signs that your windows may need replacing. Common indicators include drafts, increased energy bills, condensation between panes, or difficulty opening and closing the windows. Damaged frames, such as cracks, warping, or rot, also signal the need for replacement.
If you notice your windows are letting in excessive noise from outside or are failing to block cold air, they may no longer be energy-efficient. Older windows with single glazing or poor-quality double glazing should also be replaced to improve insulation and security.
Modern windows with features like multi-point locking systems, A-rated energy performance, and durable frames can drastically enhance your home’s comfort, security, and appearance. Consult a professional installer to assess your current windows and recommend the best options.
This privacy policy sets out how Onyx Windows uses and protects any information that you give Onyx Windows when you use this website.
Onyx Windows is committed to ensuring that your privacy is protected. Should we ask you to provide certain information by which you can be identified when using this website, then you can be assured that it will only be used in accordance with this privacy statement.
Onyx Windows may change this policy from time to time by updating this page. You should check this page from time to time to ensure that you are happy with any changes. This policy is effective from 21st November 2024.
What we collect
We may collect the following information:
What do we do with the information we gather?
We require this information to understand your needs and provide you with a better service, in particular for the following reasons:
Security
We are committed to ensuring that your information is secure. To prevent unauthorised access or disclosure, we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect online.
How we use cookies
A cookie is a small file which asks permission to be placed on your computer’s hard drive. Once you agree, the file is added and the cookie helps analyse web traffic or lets you know when you visit a particular site. Cookies allow web applications to respond to you as an individual. The web application can tailor its operations to your needs, likes and dislikes by gathering and remembering information about your preferences.
We use traffic log cookies to identify which pages are being used. This helps us analyse data about web page traffic and improve our website to tailor it to customer needs. We only use this information for statistical analysis purposes and then the data is removed from the system.
Overall, cookies help us provide you with a better website, by enabling us to monitor which pages you find useful and which you do not. A cookie in no way gives us access to your computer or any information about you, other than the data you choose to share with us.
You can choose to accept or decline cookies. Most web browsers automatically accept cookies, but you can usually modify your browser setting to decline cookies if you prefer. This may prevent you from taking full advantage of the website.
Links to other websites
Our website may contain links to other websites of interest. However, once you have used these links to leave our site, you should note that we do not have any control over that other website. Therefore, we cannot be responsible for the protection and privacy of any information which you provide whilst visiting such sites and such sites are not governed by this privacy statement. You should exercise caution and look at the privacy statement applicable to the website in question.
Controlling your personal information
You may choose to restrict the collection or use of your personal information in the following ways:
We will not sell, distribute or lease your personal information to third parties unless we have your permission or are required by law to do so. We may use your personal information to send you promotional information about third parties which we think you may find interesting if you tell us that you wish this to happen.
You may request details of personal information which we hold about you under the Data Protection Act 1998. A small fee will be payable. If you would like a copy of the information held on you please write to 96 Factory Rd, Hinckley, LE10 0DS.
If you believe that any information we are holding on you is incorrect or incomplete, please write to or email us as soon as possible at the above address. We will promptly correct any information found to be incorrect.
This website and its content are protected by copyright laws. All rights reserved.
The content of this website, including but not limited to text, graphics, images, logos, and software, is the property of Onyx Windows or its content suppliers and is protected by the United Kingdom and international copyright laws.
You may not reproduce, distribute, publish, display, modify, create derivative works from, or exploit in any way the content of this website without the prior written consent of Onyx Windows.
You may download, print, and store limited copies of the content of this website for your personal, non-commercial use, provided that you do not alter or remove any copyright, trademark, or other proprietary notices.
Any unauthorized use of the content of this website may violate copyright laws, trademark laws, and other laws. Onyx Windows reserves the right to take legal action against any unauthorised use of the content of this website.
This website, Onyx Windows, uses cookies to improve your browsing experience and to help us understand how users interact with our site. This Cookies Policy explains what cookies are, how we use cookies, and how you can manage your cookie preferences.
What are cookies?
Cookies are small text files that are stored on your device when you visit a website. They are widely used to make websites work, or work more efficiently, as well as to provide information to the owners of the site.
How we use cookies
We use cookies for a variety of purposes, including:
Cookies that we use
We use the following types of cookies on our website:
Managing your cookie preferences
Most web browsers allow you to manage your cookie preferences. You can set your browser to accept all cookies, to block certain types of cookies, or to block all cookies. You can also set your browser to alert you when a website tries to set a cookie.
Please note that if you block or delete cookies, some features of our website may not work properly.
For more information about managing your cookie preferences, please refer to the help section of your browser or visit www.aboutcookies.org.
This website is operated by Onyx Windows (the “Website”). By using the Website, you agree to be bound by these Terms of Use (the “Terms”). If you do not agree to these Terms, please do not use the Website.
The Website is intended for your personal, non-commercial use. You may not use the Website for any illegal or unauthorized purpose. You may not use the Website in a way that could damage, disable, overburden, or impair the Website or interfere with any other party’s use of the Website.
The content of the Website, including but not limited to text, graphics, images, logos, and software, is the property of Onyx Windows or its content suppliers and is protected by the United Kingdom and international copyright laws. You may not reproduce, distribute, publish, display, modify, create derivative works from, or exploit in any way the content of the Website without the prior written consent of Onyx Windows.
The Website is provided on an “as is” and “as available” basis. Onyx Windows makes no representations or warranties of any kind, express or implied, as to the operation of the Website or the information, content, materials, or products included on the Website. Onyx Windows will not be liable for any damages of any kind arising from the use of the Website, including but not limited to direct, indirect, incidental, punitive, and consequential damages.
Onyx Windows will not be liable for any damages of any kind arising from the use of the Website, including but not limited to direct, indirect, incidental, punitive, and consequential damages.
Onyx Windows reserves the right to modify these Terms at any time without notice. Your continued use of the Website after any such modification constitutes your acceptance of the modified Terms.
These Terms and your use of the Website will be governed by and construed in accordance with the laws of England and Wales, without giving effect to any principles of conflicts of law.
This website (the “Website”) is provided by Onyx Windows on an “as is” and “as available” basis. Onyx Windows makes no representations or warranties of any kind, express or implied, as to the operation of the Website or the information, content, materials, or products included on the Website.
Onyx Windows will not be liable for any errors or omissions in the content of the Website, or for any actions taken in reliance on the information provided on the Website. Onyx Windows will not be liable for any damages of any kind arising from the use of the Website, including but not limited to direct, indirect, incidental, punitive, and consequential damages.
Onyx Windows does not warrant that the Website will be available at all times or that the Website or any content will be error-free. Onyx Windows reserves the right to modify, suspend, or discontinue the Website or any content at any time without notice.
The content of the Website is provided for general information purposes only and is not intended to be a substitute for professional advice. You should always seek the advice of a qualified professional before making any decisions based on the information contained on the Website.
This website uses cookies to improve your browsing experience and to help us understand how users interact with our site. By continuing to use this website, you consent to the use of cookies. You can find out more about the cookies we use and how to manage them in our Privacy Policy & Cookie Policy.