About Us

We are the one of the top suppliers of windows and doors in london and use the information below to find answers to your questions.

Welcome to Daylight Glazing Group
Your Premier Aluminium and UPVC Doors and Windows Company

With over 20 years of expertise, Daylight Glazing Group stands as a distinguished aluminium, UPVC doors, and windows company. As specialists in aluminium windows and doors, we bring a wealth of experience in all aspects of aluminum glazing, ensuring top-notch products and services. Operating from 10 locations across the UK, including our hub in London, we prioritize customer satisfaction and consistently meet high standards with competitive prices. The Daylight Glazing Group is here to help you choose and buy the perfect glazing solutions. Explore our recent projects in areas such as Ealing, Barnet, Golders Green, Borehamwood, Iver, Gerrards Cross, Acton, Hackney, Harrow, Kensington and Chelsea, Pinner, Kingston upon Thames, Richmond, and beyond. Learn more about Daylight Glazing Group Please follow us on Social media links.

Our Passion for the Aluminium Trade

Daylight Glazing Group is passionate about the aluminium trade, catering to both commercial projects and homeowners' queries. Covering a vast area of Greater London, from North to South, West to East, and inner London, we serve diverse needs with our range of products.

Residential Excellence

Explore our extensive range of folding doors, bifold or sliding window openings, sliding patio doors, lanterns, external aluminium doors, bespoke window designs, and more. Whether you're in West London, East London, or inner London, our aluminium bifold and sliders are available to enhance your living space.

Commercial Innovations

For commercial projects, we offer a variety of products, including casement, panoramic, curtain walling, triple glazing units, bifold and slide systems on doors, and many other made-to-measure designs.

Swift Lead Times and Quality Assurance

Understanding the importance of lead times, we, as a main manufacturer and supplier in London, ensure a swift turnaround. We fulfill orders for new aluminium window frames and doors (all designs) within a maximum of 7 days, providing efficiency without compromising on quality.

Supply Only Convenience

Daylight Glazing welcomes supply-only orders for aluminium doors and windows. If you have your own installation plans or work with a builder, our supply-only service caters to your specific needs.

Diverse Product Range

Whether you have a specific deadline or require a fast turnaround, Daylight Glazing is here to assist in profile choice, colours, Ali bifold doors, slide doors, casement window frames, and more. No job is too great or too small for us. Contact us today for online purchases or face-to-face inquiries at your home or our warehouse.

Daylight Glazing specialist in the manufacturing of aluminium windows, doors

Get a quote for your Double glazing needs

Feel free to contact us anytime!! We are here to help you.

What We Actually Do

We supply and fit every style of window, door, conservatory and roof lights in a wide range of materials. Our experienced team will offer high quality products with expert advice and installation at affordable prices.. We are one of, Hertfords excellent home windows and doors manufactures and suppliers. Established about a decade ago, Daylight Glazing today boasts of sales and service provider presence in all throughout the London. Know more about us.

Our Fitters

Our Fitters are sub-contractors and all hold ASSURE qualifications, to check one of our installation teams, gain their Trading Name and check on:

ASSURE: Learn more

Daylight Glazing has built Double Glazed windows and doors that can survive London’s intense weather. Our high overall performance products create an architecture and design element to the home and hold out the noise, dust, pollution, rain and wind. Our products are living longer than buildings.
 In addition, we are in collaboration with KAWNEER, one of the great manufacturers of aluminium structures. No other company draws on an international-elegant system or has controlled and developed the entire supply chain of window manufacturing. However, it takes all-around knowledge in executing, designing and preparation. Read our blogs to know more about us.

Our Services

Daylight Glazing are a reputable company working across London and the South East. We specialise in UPVC and aluminium windows, doors and conservatories, with a long history of serving our customers to the highest standard. We are dedicated to offering you excellent service and value for money, so that you can enjoy enhanced energy efficiency and security all year round.

Our range of UPVC windows, doors and conservatories is available in a wide variety of styles and colours to complement your home. Our team of knowledgeable staff would be happy to discuss your requirements. Please call us on 08006891261 or email info@daylightglazing.co.uk
We have wide – ranging capacities and, with Daylight Glazing, the consumer is assured of an end-to-end operation. Firstly, starting from the collection of appropriate designs, site assessments, sourcing, installation and set-up. Secondly, as window specialists, Daylight Glazing enjoys the ability to support private homeowners and major builders with similar ease. Furthermore, located in the United Kingdom, our national service infrastructure helps us to offer window solutions and execute instructions of any duration, regardless of where you are located.

Why Choose Us

By selecting us, you select high-quality, custom-made windows from a brand that you can trust. Read all about the advantages of Daylight Glazed Window. Moreover, we have been selling for more than 15 years and are going out of our way to make repairing your windows a simple process, from preparation to payment. Finally, we still deliver good quality goods backed by firm assurances.

We pride ourselves on giving an excellent after sales service in the unfortunate and rare occurrence something goes wrong with your doors and/or windows. Conservatories are also something we specialise in.

daylight glazing showroom

Route To Your New Windows And Doors


We will perform the site survey and provide you with the quotation for your windows and doors. After having a discussion with you, we will finalize the price.


We will manufacture the product according your design After completing the manufacturing, we will deliver it to the work site and start installing it.


After the installation, we will close the deal with final payment. We will perform a photo-shoot for the future reference.

One of The Best Double-Glazing Companies in Hertfordshire & London

Manufacturers of Double glazed windows and doors Units for Hertfordshire & London

Daylight Glazing’s partners stretch wide and far, thus Hertfordshire is our companies’ heart and head office meaning that, most of the home owners in and around the great county of Hertfordshire have heard of or used our supply and fit (installation) services. We were announced by ‘’The Double Glazier Magazine’’ to have the most positive reviews in Hertfordshire.

Daylight glazing are considered one of the main manufacturers of double glazing in Hertfordshire which includes the county cities such as Watford, Stevenage, st albans and Hemel Hempstead. We manufacture more than 500 double glazed units per week just for the Hertfordshire county which includes systems of upvc & aluminium windows and doors. Know more about us by visiting our product pages.

Get a quote for your Double glazing needs

Feel free to contact us anytime!! We are here to help you.

Aluminium & upvc Doors

Replacement double glazing, Windows & Doors for Hertfordshire

Replacement double glazing has never been more needed until 2019 when a home owners survey displayed, that the most known reason for helping a houses sale or value increase were its windows and doors being replaced from old to new glazing. We replace more than 250 units of double glazing per week which includes windows, doors, conservatories, roof lights and much more. Visit our projects to know more about us.

What is Replacement Double Glazed Units?

A replacement unit is a lot more than a basic fix. Firstly, when a double-glazing unit is unrepairable, it is time for a new unit to replace the existing one. Moreover, If it’s a doorway or an aluminium door, a double glazed window or an aluminium window, it’s known as a device.
Furthermore, the value of replacement glazing is that you, as a home or office owner, will get a brand-new warranty that lasts at least 10 years for upvc and 15 years with Aluminum and means absolute “peace of mind” for you (the buyer).
Finally, another form of replacement is from pvcu to aluminium, which may be due to security concerns or even insurance conditions, but at the end of the day, Daylight Glazing gives you complete peace of mind.

Whats the difference between residential & Commercial Glazing for Hertfordshire?

Firstly, the key difference is the brand that is used for office blocks, making frames and unit styles heavier and more robust than home units. Secondly, residential home double glazing provides a broader variety of labels and items to select from within the industry than would traditionally have been the case for a commercial house.
The most popular types of doors found in residences are double doors, composite doors, sliding doors. Furthermore, windows that are included are; hanging windows, rotating windows and bay windows.
Finally, the most common types used for industrial uses are sliding, panoramic and hung due to security tightness and durability.