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Double Glazing & Installations in London

Improving homes in London for over 50 years

Improving homes in London for over 50 years

Double Glazed Windows, Doors & Conservatories in London

Here at Everest, we pride ourselves on offering a service that is close to home which is why we have a number of local advisors operating in and around the London area.

Our London experts are on hand.

Our extensive product range includes tiled roof extensions, orangeries and conservatories, front doors, double-glazed windows and more. With an abundance of designs available, you’re guaranteed to find something that fits with the local area while catering to your own preferences. London is renowned for its varied architectural appeal, with many different building styles taking centre stage.

At Everest, we can guarantee our home improvements are of a premium quality. With appointments available at a time to suit you, including evening and weekend appointments, even the busiest customers can be catered to by our team of experts who use their local knowledge to offer a superior service.

Get a FREE quote

All our products are bespoke, so to provide an accurate quote an appointment is required. Simply fill in the form below and let us know a time that suits you. Partial or full completion of the form will stimulate a follow up to confirm the appointment.

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All our products are bespoke, so to provide an accurate quote an appointment is required. Simply fill in the form below and let us know a time that suits you. Partial or full completion of the form will stimulate a follow up to confirm the appointment.

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If you require a date that's unavailable, please call us on 01707 830 275 and we will happily book this for you.

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Meet the team in London


Adam lives in Hampstead and covers all areas of North London, including Finchley, Hendon, Highgate, Islington and Hornsey, plus the Home Counties. Hes been with Everest since 2009 and outside work enjoys skiing and walking his miniature daschunds (we assume he doesnt attempt both activities at the same time). He handles all of our most popular products, including conservatories and replacement roofs, roof trim, security systems, artificial grass, porches and flat roofs, plus windows and doors, of course.


Native South Londoner Barry looks after Clapham, Brixton, South Lambeth, Balham, Battersea and Stockwell. With 11 years at Everest under his belt, he knows South London like the back of his hand, and he’s a walking encyclopaedia of knowledge on our range of windows, doors and roofline products. So, if you’re looking to making your windows more secure, or give your house a facelift with a stunning new entrance door, Barry’s your man.


One of Bernards most challenging but rewarding experiences was learning Japanese, together with his daughter. You could ask him to do his presentation in the language if he comes round, but on second thoughts its probably best to stick to plain English, something at which he excels when extolling the merits of all of our many different windows, doors and other products. The proof of this is his many satisfied customers in places like Bromley, Orpington, Thamesmead, Eltham and Plumstead. Hes been with Everest since 1995.


Davids favourite film is Scarface, and hes also been on TV in the past, but is too shy or modest to say in what exactly. But if you live in somewhere like Clapham, Tooting, Beckenham, Bromley or Eltham and make an appointment to see him, he might just come clean. What he certainly will do is tell you all about finding the right home improvement products for your property, whether its a nice entrance door made of timber, uPVC, aluminium or composite materials, or a new window or two in the same materials. Hes been with Everest since 1999.


David is a relative of Michael Morpurgo, the man who wrote War Horse, but for his favourite film, he opts for The Last Picture Show, which gave actors Jeff Bridges and Cybill Shepherd their big breaks. David covers all of South London, including Bromley, Thornton Heath, Brockley and Lewisham, as well as near his home in Kenton. Areas such as these tend to be densely populated and can have strict local planning regulations, but David knows exactly what will work where, whether its windows, doors, roof trim or flat roofs. Hes been with Everest since 2013.


A Michael Jackson fan and keen dancer (hes won prizes in disco dancing), Freds favourite song is Billy Jean, and when it comes to selling he moonwalks his way across Bromley, Beckenham, Purley, Croydon and South London generally, where he specialises in conservatories. Hes been with Everest for around 20 years (which by our standards doesnt nearly make him the oldest swinger in town). His home town is Warlingham, and if youve an eye on a flexible new year-round living space in the shape of one of our conservatories, Fred is your man.


Gatis lives in London, travelling to places such as Colindale, Hendon, Hampstead, Palmers Green and Finchley to meet his many customers. Hes been with us since 2011 and his favourite film is the Tom Hanks picture Castaway. The good news is that when it comes to home improvements Gatis is very far from all at sea, and can talk knowledgeably about anything from dual turn, casement or sash windows to stable, patio, French or entrance doors. He also knows his barge boards from his soffits (theyre parts of roof trim, in case you were wondering).


Jean claims to look younger than he actually is - maybe thats down to his continental heritage (or Gallic charm?). Given that his favourite film is Scarface we have to assume that whatever else he looks like, its not the eponymous hero of that film! But when it comes to good looking, theres not much thats more attractive than an Everest conservatory, unless its one of our advanced entrance doors, and Jean is well-placed to tell you the merits of all of them, along with all of our other products. Hes been with Everest since early 2014.


One of our longest-serving consultants, John first joined Everest in 1978. Before that, he was with the merchant navy. Nowadays its the four corners of our Richmond territory that he ventures forth to from his home in Kingston-upon-Thames, including Acton, Ealing, Hounslow, Barnes and Putney. As you would expect, his knowledge of everything Everest is comprehensive, so if youve got your eye on a nice timber, uPVC or aluminium door or window, or some replacement roof trim or a new driveway or garage door, then John could be the one to ask for.


John has been with Everest for 30 years now, looking after North East London and beyond. He lives in Hoxton, but his ‘manor includes Leyton, Leytonstone, Walthamstow, Wanstead and Romford. One feature of areas like these is all the traffic, which means not just dirt and pollution, but noise, especially at peak periods - so he appreciates just what a difference Everest windows in particular can make when it comes to keeping the warmth in and noise out. His favourite film is the comedy classic Bad Santa.


Kirandeep once backpacked in South America for a year and is also keen on air rifle shooting, so there was never going to be much that fazed her in whatever she did. As it happens, she joined Everest in 2016 and is equally adept at finding the right doors or windows for her many customers as she is with roof trim (guttering, soffits and so forth), garage doors or flat roofs. She lives in West London and her customers are based in and around here too, in locations such as Ealing, Feltham, Hampton and Isleworth.


Majid has been Everest for around 20 years and lists his interests as ‘everything and nothing but believe us, theres nothing, that he doesnt know about Everest products - and when it comes to selling, hes sold everything we make, and very successfully. Hailing from Kingston-on-Thames, hes your go-to person for windows, doors, roofline and flat roofs, there and throughout the South-West London area. He also likes running and cycling, and for such a nice, mild-mannered person, he has a surprising choice of favourite film - Pulp Fiction!


Living in South Ockenden, Mark is a keen swimmer and Arsenal supporter (but we wont hold that against him). His many happy customers hail from places such as Upminster, Hornchurch, Rainham, Romford and Dagenham, and he actually covers any postcode beginning in RM, IG or E. His favourite film is Rocky, and like that boxing superstar he never gives up. So theres many a customer whos gone on from purchasing a Mark 1 window (as it were) to asking him to call again and opted for a Mark II door, then some Mark III roofline and so on.


North London is Martyns home, and also his ‘manor, with customers typically in places such as Kentish Town, Wood Green and Islington. He claims to be “Always open to learning despite possessing a multitude of T-shirts”, which we never realised could hold you back - in fact some of them have quite educational slogans! Martyn is clearly well-read too, his favourite book being All Quiet on the Western Front. A real Everest veteran, hes been with us since 1981, so theres not a lot he doesnt know about our entrance doors, replacement windows or anything else.


Nima has now been with us for over ten years, having joined in 2006. Hes very hard-working, even by Everest standards, which means that on any given day hes likely to be found in South West London, Surrey or Berkshire meeting customers. He also knows all there is to know about all of our most popular home improvements, including uPVC, aluminium and timber doors and windows, as well as roof trim, alarm systems, garage doors, flat roofs, artificial grass and secondary glazing. Outside of work, hes a keen photographer.


Living in Enfield, Paul has been with Everest since 2003. His patch includes locations such as High Barnet, Muswell Hill, Winchmore Hill, Hadley Wood and New Barnet. Outside of work he enjoys reading, while his favourite film is The Sound of Music. He looks after all of our core products, including casement and sash windows, entrance doors, stable doors and patio doors, plus secondary glazing, flat roofs, artificial grass, driveways and security systems, not to mention secondary glazing and roof trim products such as guttering and fascias.


A conservatories specialist, Paul has been with Everest since 1998. He lives in Chipstead, while his numerous customers are in places as far apart as Croydon, Horsham, Epsom and Bromley. As befits someone who has been with us for 20 years or so, Paul isnt just committed to listening to his customers, but adept at helping them choose the right bespoke conservatory, orangery, tiled roof or glass extension for their property. And if you already have a conservatory, Paul knows how something as straightforward as a replacement roof can make a world of difference.


Raymond once lived in Australia for five years, but decided a country like that had little need for his true calling, selling home improvement products to keep the weather out, and so came to back to the UK, joining Everest in 2003. Whether its uPVC windows or composite doors, or indeed anything else from the wide Everest range, Steve will do the job brilliantly of explaining all the options and finding out whats best for you. Just ask his many happy customers in places like Cobham, Esher, Leatherhead, Croydon and Sanderstead.


A champion seller of all our products, Richard is your go-to man if you live in Romford, East Ham, Ilford, Woodford Green or Chingford, although his home town is Baldock. Hes been with Everest since 2009 and since then has sold everything from timber and casement windows to composite and uPVC doors, with plenty of roofline, flat roofs and even conservatories along the way. His favourite song is The Perfect Year by Dina Carroll and he was once the Under 18 British Archery Champion, although these days he prefers the smaller ‘arrows.


Roni lives in the Capital, covering all of North London and into Hertfordshire, including High Wycombe, St Albans, Hemel Hempstead and Radlett. Hes a keen backgammon player, even playing in competitions, but also collects stamps and enjoys history. Hes been with Everest since 2007, so knows a fair bit about the history of our products, but is right up to date when it comes to our most advanced double and triple glazing, not to mention uPVC doors, flat roofs, garage doors, security systems and all of our other core products.


His favourite book is Think Like a Billionaire, and in an earlier life, Stevan was an art dealer, but nowadays he serves up gems from the Everest collection that are guaranteed to make your home look as pretty as any portrait. An Everest veteran of 35 years or more, Stevan can be found across South and West London, painting a picture of how the right improvements really can transform your home, whether its with our advanced windows with frames made from uPVC, timber or aluminium, or any of our entrance, bi-fold, patio, stable or French doors.


Tito has worked with Everest since 2008, making him an Everest stalwart. He resides in London and is on hand to help people with their home improvements across North London, in areas such as Hampstead, East Finchley, Edgeware, Hampstead, Fortune Green and Cricklewood. With 10 years’ experience, Tito has expert knowledge of our core products, including our roofline range (guttering, fascias, cladding, downpipes etc), entrance, bi-fold, patio and stable doors, and casement, sash, tilt & turn and bay windows. Whatever your requirements, if you live in North London London based, Tito is your man!


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Browse our products

Everest black window


  • A range of styles and colours
  • Made-to-measure
  • Market leading security
  • Thermally efficient
  • Double or triple glazing
Everest doors


  • Secured by Design
  • Reduce draughts
  • Wide range of styles and options
  • Beautiful range of furniture
  • Lifetime guarantees
Everest Edwardian conservatory


  • Can be enjoyed all year round
  • We take care of planning
  • Traditional and contemporary styles
  • Fully bespoke to your requirements
  • 10 year guarantee for peace of mind
Everest roofline


  • Reliable weatherproofing
  • Many colours and woodgrain finishes
  • Effectively manage rain water
  • Maintenance free
  • High quality materials
Everest garage doors

Garage doors

  • Side hinged, one-piece, roller and sectional door options
  • Manual or automatic operation
  • Made-to-measure
  • Practical and attractive
  • Range of colours
Everest driveways


  • Built on solid foundations
  • Responsible drainage facilities
  • Stunning patterns and designs
  • Optional kerbs, edging and steps
  • Guaranteed for 10 years
Everest artificial grass

Artifical grass

  • Realistic alternative to turf
  • Made-to-measure
  • Safe for children and pets
  • Maintenance free
  • Guaranteed for 10 years
Everest security

Security systems

  • Monitored 24 hours a day
  • Fully customisable
  • Wireless systems
  • User friendly
  • Guaranteed for up to 5 years

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