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Last updated: 11 March 2024

Double Glazing Companies in London

Double glazing is something every home owner needs to consider in order to make their home energy efficient, and increase its long-term value. Having double glazing installed is a costly affair, and finding a reliable and professional company to supply and fit your double glazing isn’t always easy.

With hundreds of double glazing companies in London alone, it can be a difficult decision. Here is a list of some of the most reputable companies in the London area. The right installer provides the best prices, great service, and can help you find government grants for windows that might apply to your home, so choose carefully.

Reputable Double Glazing Companies in London

East London windows

Over 20 years of experience in double glazing. East London Windows supplies and fits a range of windows and doors, we also do porches, patios, uPVC doors and windows and conservatories. They also supply bi-folding doors and can carry out custom installations. Get in touch for a no obligation quotation.

They cover East London and the surrounding area, within a 30-mile radius.

Contact details for East London Windows.

Telephone: 07419 838 980

Lyca Windows

Lyca Windows is a very reputable family run business based in Kingsbury, London. They have been in business for five years and have developed an outstanding reputation in that time with many positive customer reviews and a 5* rating on The entire business is family-run, from the salesmen to the installation technicians. Lyca fit doors, windows, porches and conservatories. All their products hold a ten-year insurance backed guarantee, including against condensation and draft, as well as discolouration. All their windows hold an A efficiency rating and are energy efficiency recommended. Lyca Windows are registered with the quality assured national warranties.

Contact details for Lyca Windows

Address: Unit 3, Albion House, 470 Church Lane, Kingsbury, London NW9 8UA

Telephone: 0208 720 6799


SDG Windows Ltd

SDG is a central London based family run double glazing firm which covers South London, North London and East London, and have been in business for the past ten years. They provide high quality PVC and aluminium windows and doors which hold a ten year guarantee. SDG windows offer a free design and consultation service. They also offer an after care service which covers any repairs that may be needed on your windows or doors. SDG is a member of the glass and glazing association and is a FENSA registered window installer. They have a five star rating on and many good customer reviews from satisfied customers.

Contact details for SDG Windows Ltd

Address: 99 Kirkdale, Sydenham, London, SE26 4BL

Telephone: 0207 998 9092

MB Glass & Glazing Ltd

MB Glass & Glazing is a family run business based in Chingford, London. They have been in business for the past ten years and pride themselves on their skill and experience in the field. They offer free estimates and avoid any ‘hard sell’ tactics. They aim to offer a good value and high-quality experience that customers will want to return to. MB Glass has a five-star rating on MB Glass & Glazing is a FENSA registered window installer.

Contact details for MB Glass & Glazing

Address: 11 Wellington Ave, Chingford, London, E4 6RE

Telephone: 0208 257 7458

Wembley Windows

Wembley Windows is a North London based family run business of 29 years. They manufacture their own products and provide all the services from manufacturing to installation and finally aftercare. Their design consultants work flexible hours including evenings and weekends in order to be more convenient to their customers. Wembley Windows are registered with the UK trades confederation and are a FENSA registered window installer.

Contact details for Wembley Windows

Address: 3 Adrian Avenue, Staples Corner, London, NW2 1LX.

Telephone: 020 8208 4100

MC Home Improvements

MC Home Improvements is a very small company with 20 years of experience in the business. They are so small they don’t even have a website, However, they have one of the highest rates of customer satisfaction amongst the London window installers and are very highly recommended for their professionalism and value for money. They are Certass accredited and are recommended on checkatrade where they have a rating of 9.9 out of ten from 109 feedback reports, thus proving their consistently high level of service.

Contact details for MC Home Improvements

Address: Sutton, Surrey, SM3 9RT

Telephone: 07950 943547

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