Warmlite are a FENSA Registered Double Glazing Company

Windows & Doors

Replacement double-glazing specialists, we have the right solutions for your home.  

Quality UPVC, Aluminium & Timber replacement doors and windows.

Stunning Orangeries

The ultimate extension, an Orangery. A truly stunning addition to any home.

Light and airy partly made of a glass roof with windows and doors to suit.

Quality Conservatories

We offer a complete service, including initial advice on the design with drawings.

We specialise in all aspects of the construction from start to finish.

Flat Roofs & Roofline

Assured installation of flat roof providing you with a roof of quality & durability.

Replacement fascias & soffits, reduce maintenance and improve your home.

Providing you with the best products for your home...

Warmlite was founded in 1988 by Austin Power and Kevin Davies. Our experienced and professional team will always give you best advice on any of the products in our range without any pressure or obligation. We thrive on recommendations from our many, many happy customers, and we want you to join them.

Testimonals - What our customers say about Warmlite

  • We are so pleased that we chose Warmlite to replace our patio doors, porch and back doors, three bay windows and eight other windows.   They carefully helped us choose the best windows and doors for our home, the surveying was professional and the price competitive. Installation commenced on our chosen date and finished to time.  The installers arrived promptly every day, protected our furnishings and left everything tidy at the end of each day. The installers are full-time employees and not sub-contractors.  We left them in the house on many occasions throughout the work and would certainly do so again. The finished job has brought complimentary remarks from several of our neighbours and we ourselves are totally satisfied.  Throughout every stage all Warmlite staff were efficient, courteous and excellent at communication. We have no hesitation in recommending Warmlite to prospective customers.  They are a first class company to do business with.
    Philip Knight, Worcester Park, Surrey, Flush Sash Timber Look Windows, Doors & Porch
  • The Warmlite team have done a fantastic job.  From the point of coming round and carefully assessing our needs, to arranging the work to be completed on time.  Workmanship is of a very high standard with a level of attention to detail that is impressive.  All the staff are extremely, helpful, friendly and take pride in their work.
    Chintan Patel, Epsom, Surrey, Full Build Porch, Aluminium Sliding Doors & Slim Sash Windows
  • From start to finish Warmlite were effortless in their warm and personal customer service approach. A brief visit to the showroom was enough to convince me of their quality and workmanship. They were quick to guide me from stage to stage, and within their quick lead time the doors were in place within a two day construction...impressive! The doors are as high a quality as Warmlite themselves. I would recommend anyone considering bi-fold doors to work with Warmlite.
    Tom Mitchell, Wandsworth SW18, Bi-folding door Installation
  • Thanks to Warmlite for an excellent new front door that we're very happy with, they're also a polite and efficient team and resolved any issues immediately to our full satisfaction.
    Claire Boissiere, Guildford, Surrey, Timber Front Entrance & windows
  • Warmlite gave me an excellent service from start to finish.  No pressure sales chat at all, just good honest reliable all round service.  The windows and french doors were exactly what I wanted, the price was competitive and the installation team were polite and efficient.  I was so delighted with the entire experience that I have recommended them to my son, who has recently placed an order with them.
    Muriel Ebrahim, Tooting SW17, Sculptured PVCu windows & doors
  • Having trawled the internet looking for bi-fold doors and two flat roof lights we were delighted to find one so close to home so we could visit their showroom.  On our visit were treated extremely professionally and it was great to see the doors in operation.  From order to fitting we had fantastic service from Warmlite.    We are entering our second winter with our beautiful bi-folds and would highly recommend Warmlite.
    Noreen Derham, Weybridge, Surrey, Bi folding doors, Aluminium windows & Flat Roof lights
  • We have used Warmlite over a period of 3-4 years as we have renovated and extended our family home; they were first recommended to us by friends. I've been very impressed by the product knowledge, quality of end product and fitting, and after sales care. We have appreciated their ability to be flexible and to give us honest opinion based on their experience in the industry.
    Rob Barritt, Surbiton, Surrey, Bi folding doors, Solidor Front Entrance, Slim Sash windows
  • Please thank the guys who installed the door. They both did a good job.
    Alex Cheung, East Sheen, SW14, Solidor Entrance & slim sash windows
  • Just a quick email to say Gary and Rob did a great job today installing the door. Both Kim and I very pleased with the results.
    David & Kim Pettitt, Cheam, Surrey, Solidor Front Entrance
  • We used Warmlite to replace a couple of our windows and their service throughout the process - from quoting for the works, visiting their showroom, survey and installation - was great. They were happy to answer all our questions, replied quickly to our emails, changed the quote several times and were generally very pleasant to deal with. The quality of the windows is great - definitely worth the difference in price to some other suppliers. We are very happy with our windows and would use Warmlite again and recommend them without hesitation.
    Katharina Ueberschaer, Thames Ditton, Surrey, Slim Sash windows
  • Best choice window company we could have gone with. Not the cheapest, but very good value for money. We're completely satisfied with the "Warmlite" experience. From the sales person, John to Austin the surveyor, to the fitters who were all courteous, professional and were genuinely proud of their excellent product. Help with a request of a not standard stock fitments was sourced and provided. The after sales service has been excellent. I hadn't seen another comparable product with the same high specification. I wouldn't hesitate to highly recommend Warmlite as they were to me.
    Michael Holden, East Molesey, Surrey, Sliding Sash windows
  • I interviewed three companies before choosing Warmlite.All wooden windows are made in roughly the same way, the sales staff from other companies were pushy and dishonest. The nine windows were fitted in two days and it has changed my life! I could not be more satisfied
    Glen Colson, Putney SW15, Flush Timber windows
  • Warmlite were fantastic from start to finish. Friendly and polite sales staff, clean and tidy workmen and great quality windows and doors too. Our house is so much warmer now. Have recommended them to all my neighbours!!!
    Robert Griffiths, Balham SW12, Slim Sash windows & Solidor Front Entrance

The very best Conservatories, Orangeries, Doors & Triple or Double Glazing in Surrey, Kingston & South West London.

Double glazing installation in SW London, Kingston and Surrey. Warmlite have the solutions for those looking for quality UPVC, Aluminium and Timber replacement windows, doors and conservatories. With many years’ experience in home improvement, we have the knowledge and expertise to handle the design, manufacture and installation of replacement windows and doors, and can also provide conservatory and orangery extensions. We are also installers of fascias and soffits (roofline), garage doors and flat roofs.

A wide range of window and door products is on display at our showroom in Tolworth. Visit us to find out more. All window and door installations are covered by Warmlite’s robust 10 YEAR GUARANTEE. Warmlite also provides its customers with additional guarantee insurance provided by the Glass and Glazing Federation Insurance scheme (GGFi).