Quick & Easy Quote
Quick & Easy Quote
Call today for a no-obligation quote for Glazing Repairs, Glass Replacement, Double Glazing Installation, Emergency Glazing, Window & Door Fitting and our wide range of Glazing Services.
Call us on: 020 4634 0088
Trusted Tradesmen
We are well known in the Greater London area for exceptional efficiency and the highest level of professionalism.
No matter what service you’re looking for, we guarantee to not only meet but exceed your expectations.
Opening Hours
We are open for business every day of the week from 8 am to 6 pm and are available for after-hours callouts as required.
Your Trusted Local Glazier in Greater London
Greater London Glazing is a specialist glazing company serving residential and commercial customers across all 32 London boroughs and the City of London. Whether you need new double glazed windows fitted, a broken pane replaced urgently, or a full property reglaze, our experienced team delivers high-quality workmanship at competitive prices.
We understand that every property is different. A Victorian terrace in Islington has very different glazing requirements to a modern apartment block in Canary Wharf. That is why we take the time to assess each job individually, recommending the best glazing solution for your property type, budget and energy efficiency goals.
From single pane repairs to large-scale double glazing installations, no job is too small or too large for our team. We pride ourselves on reliable service, transparent pricing and craftsmanship that lasts.
Our Services
Our Glazing Services include:
Window & Door Repairs — Handles, hinges, locks and mechanisms that have seized, broken or worn out over time. Frames that are difficult to open or close, badly aligned, dropping or catching. Draughty seals and gaskets replaced to restore a tight, weatherproof fit. We repair uPVC, aluminium and timber windows and doors across Greater London.
Glazing Replacement — Cracked, shattered or misted glass replaced without the need to change the entire frame. We supply and fit single glazed panes, double glazed sealed units, toughened safety glass, laminated glass and obscure glass for bathrooms. If your double glazed units have blown and show condensation between the panes, we remove the failed unit and install a new one — saving you the cost of a full window replacement.
Full Window & Door Replacement — When a repair is no longer practical or cost-effective, we supply and fit complete replacement windows and doors. Choose from uPVC, aluminium or timber frames in a wide range of styles, colours and finishes. All installations are carried out to current Building Regulations and come with a full guarantee on both materials and workmanship.
Our Glazing Services include:
Double Glazing Installation & Replacement — Supply and fit of energy-efficient A-rated double glazed windows, doors, sealed units, conservatories and roof lights. Whether you are upgrading from single glazing or replacing tired existing units, we handle the full process from survey and measurement through to installation and disposal of old frames. All double glazing work is carried out to current Building Regulations with full certification.
Emergency Glazing — Fast response service across Greater London for board-ups, broken glass replacement, smashed windows and storm damage repairs. When a break-in, accident or severe weather leaves your property exposed, we aim to reach you within hours to secure the opening and arrange permanent replacement glass at the earliest opportunity. Available outside standard working hours when you need us most.
Glass Repairs & Upgrades — Replacement of misted double glazed units, cracked panes, toughened safety glass, laminated glass and acoustic glass without the need to change the full frame. If your sealed units have blown and condensation has formed between the panes, we remove the failed unit and fit a new one — restoring clarity and insulation at a fraction of the cost of a complete window replacement.
Our Glazing Support Services Include:
Glass Cutting & Bespoke Glazing — Custom cut glass panels for shelving, tabletops, splashbacks, balustrades and display cabinets. Made to measure and fitted precisely to your specifications in any glass type including clear, toughened, frosted and tinted.
Mirror Supply & Installation — Wall-mounted mirrors, full-length mirrors, fitted wardrobe mirrors and bathroom mirrors cut to size and securely fixed. We work with both standard and bespoke shapes and can install mirrors flush to the wall or with decorative fixings.
Secondary Glazing & Draught-Proofing — Additional internal glazing panels fitted to existing windows to improve thermal insulation, reduce noise and eliminate draughts. Ideal for period properties, conservation areas and rented accommodation where replacing the original windows is not an option.
What our clients say about us..
David did a very good job sealing my window. Very honest and punctual. I strongly recommend them.
Joseph - uPVC Windows & Door NW9
Really helpful and polite. Great quality work. Would use again.
Tom - Wooden Basement Window N4
Excellent work, thanks David - competitive quote, good workmanship and job completed on time and on budget. Recommended.
William - Wooden Doors, External NW10
Came very promptly and did a satisfactory job.
Anthony - Wooden Sash Window NW6
Work was completed quickly and reasonably priced. Will use this company again.
Idara- Conservatory in MK14
Very professional and thorough. Excellent job and attention to detail. Highly recommend.
Liz - Wooden Doors in E5
David was great. All done very quickly and reasonably priced. I will definitely be using them again. Thoroughly recommend.
Arsalan - Wooden Sash Window in NW6
Professional Glazing Services Across Greater London
OUR GLAZING SERVICES
Glazing Services We Provide Across London
Double Glazing Installation
Upgrade your property with energy-efficient double glazed windows that reduce heat loss, lower energy bills and minimise outside noise. We supply and fit A-rated double glazed units in uPVC, aluminium and timber frames to suit any property style. Our double glazing installation service covers new builds, extensions, conversions and full house replacements throughout Greater London.
Double glazed windows are one of the most cost-effective improvements you can make to any London property. Modern sealed units with argon gas filling and low-emissivity glass can reduce heat loss through windows by up to 50% compared to single glazing, keeping your home warmer in winter and cooler in summer.
Window Replacement
Old, draughty or damaged windows compromise your property's security, energy efficiency and kerb appeal. Our window replacement service removes existing frames and installs new high-performance windows tailored to your exact specifications. We work with casement windows, tilt and turn windows, bay windows, bow windows and picture windows in a wide range of colours, finishes and hardware options.
Every replacement window is measured, manufactured and fitted by our own team — we never subcontract your installation to third parties. This means consistent quality and a single point of contact from survey through to completion.
Sash Window Glazing
London's period properties deserve glazing solutions that respect their character. We specialise in sash window glazing, including draught-proofing, rebalancing, double glazing retrofits for traditional timber sash windows, and full sash window replacements in both timber and uPVC. Our work meets conservation area guidelines where required, preserving the original aesthetic while dramatically improving thermal performance.
Glass Repair and Replacement
Cracked, chipped or smashed glass is a security risk and an eyesore. Our glass repair service covers single glazed panes, double glazed sealed units, toughened safety glass, laminated glass and obscure glass for bathrooms and privacy applications. We carry a range of standard glass sizes on our vans for same-day repairs wherever possible.
If your double glazed units have misted up or show condensation between the panes, the sealed unit has failed and needs replacing. We supply and fit replacement sealed units without the need to change the entire window frame — saving you significant cost.
Emergency Glazing
When a window or door is smashed outside normal working hours, you need a fast response. Our emergency glazing service is available across Greater London for urgent board-ups and glass replacements. We aim to secure your property within hours of your call, then return to fit permanent replacement glass at a time that suits you.
Whether the damage is caused by a break-in attempt, storm, accidental impact or vandalism, we respond quickly to make your property safe and secure.
Commercial Glazing
We provide glazing services to commercial properties including offices, retail units, restaurants, schools and public buildings across London. Our commercial glazing work covers shopfront glazing, partition walls, fire-rated glass, safety glass upgrades, automatic door glass and curtain walling repairs. We work around your business hours to minimise disruption and can schedule installations during evenings and weekends when required.
Door Glazing
From French doors and patio doors to front door glazed panels and bi-fold doors, we supply and fit glazing for all door types. Our door glazing options include clear, frosted, patterned and decorative glass to complement your interior design. We also replace failed double glazed panels in existing doors without the need for a complete door replacement.
WHY CHOOSE US
Why Choose Greater London Glazing?
Experienced Local Glaziers — Our team has extensive hands-on experience working on London properties of every type, from listed Georgian townhouses to contemporary new builds. We understand the unique challenges that London's diverse building stock presents.
All London Boroughs Covered — We operate across the whole of Greater London, from Barnet to Bromley and Hillingdon to Havering. Wherever you are in London, we can be with you quickly.
Honest, Transparent Pricing — We provide detailed written quotes before any work begins. No hidden charges, no pressure selling, no inflated prices. The price we quote is the price you pay.
Quality Materials — We use only high-quality glass, frames and hardware from established UK manufacturers. All our double glazed units carry a manufacturer's guarantee, and our installation workmanship is fully guaranteed.
Clean, Tidy Work — We treat your property with respect. Our glaziers clean up thoroughly after every job, removing all packaging, old glass and waste materials so you are left with nothing but a perfect finish.
FENSA Registered — Our installations comply with Building Regulations. When we install new windows or doors, we self-certify the work and notify your local authority on your behalf, so you receive the necessary compliance certificate without any hassle.
AREAS WE COVER
Glazing Services Across Every London Borough
Greater London Glazing provides a full range of glazing services to customers in every part of the capital. Our coverage includes:
North London — Barnet, Enfield, Haringey, Islington, Camden, Hackney, Waltham Forest
South London — Bromley, Croydon, Sutton, Merton, Lambeth, Southwark, Lewisham, Greenwich, Bexley
East London — Newham, Tower Hamlets, Barking and Dagenham, Redbridge, Havering
West London — Ealing, Hounslow, Hillingdon, Harrow, Brent, Hammersmith and Fulham, Richmond upon Thames, Kingston upon Thames
Central London — Westminster, City of London, Kensington and Chelsea, Wandsworth
No matter which borough you are located in, we offer the same reliable, high-quality glazing service with competitive local pricing.
HOW IT WORKS
How Our Glazing Service Works
1. Get in Touch — Call us on 07546 087841 or fill in our online quote form with details of the glazing work you need. We respond to all enquiries promptly.
2. Free Survey and Quote — We arrange a convenient time to visit your property, assess the work required, take accurate measurements and provide a clear, no-obligation written quote.
3. Professional Installation — Once you approve the quote, we schedule the installation at a time that suits you. Our glaziers arrive on time, carry out the work to the highest standard and leave your property clean and tidy.
4. Guaranteed Workmanship — All our glazing work is backed by a comprehensive guarantee covering both materials and installation, giving you complete peace of mind.
TYPES OF GLASS
Types of Glass We Work With
We supply and install a full range of glass types to meet any requirement:
- Float Glass — Standard clear glass for general glazing applications
- Toughened Safety Glass — Heat-treated glass that is up to five times stronger than standard glass, required by Building Regulations in doors, low-level windows and areas near stairs
- Laminated Glass — Two layers of glass bonded with an interlayer that holds the glass together if broken, providing enhanced security and UV protection
- Low-E Glass — Low-emissivity coated glass that reflects heat back into the room, dramatically improving energy efficiency
- Acoustic Glass — Specialist laminated glass designed to reduce noise transmission, ideal for properties near busy roads, railways or flight paths
- Obscure Glass — Textured or patterned glass for privacy in bathrooms, cloakrooms and side-facing windows
- Fire-Rated Glass — Glass that maintains its integrity during a fire for a specified period, essential in commercial buildings and communal areas
- Georgian Bar and Leaded Glass — Decorative glazing options that replicate traditional window styles
Frequently Asked Questions About Our Glazing Services
How much does double glazing cost in London? The cost of double glazing depends on the number of windows, frame material, glass specification and access requirements. As a guide, a standard uPVC double glazed casement window supplied and fitted typically starts from around £350–£500. We provide free, no-obligation quotes tailored to your specific requirements so you know exactly what to expect before any work begins.
How long does it take to replace windows? Most standard window replacements can be completed within a day. A typical three-bedroom house with 8–10 windows usually takes two to three days. We schedule our work carefully to minimise disruption and always aim to complete every window opening within the same day it is removed.
Do I need planning permission to replace my windows? In most cases, replacing windows on a like-for-like basis does not require planning permission, as the work falls under Permitted Development rights. However, if your property is in a conservation area or is a listed building, you may need approval from your local planning authority. We can advise you on the specific requirements for your property.
What is the difference between uPVC, aluminium and timber windows? uPVC windows are the most popular choice in London due to their excellent thermal performance, low maintenance requirements and competitive pricing. Aluminium frames offer slimmer sightlines and a more contemporary appearance, making them popular in modern and commercial properties. Timber windows provide a traditional aesthetic and are often required in conservation areas. We work with all three materials and can help you choose the best option for your property.
Can you replace just the glass without changing the frame? Yes. If your window frames are in good condition but the glass has failed — for example, misted double glazed units or cracked panes — we can replace just the sealed unit or glass pane without disturbing the existing frame. This is a cost-effective solution that can save you up to 50% compared to a full window replacement.
Do you offer emergency glazing services? Yes. We provide an emergency glazing service across Greater London for situations such as break-ins, storm damage, vandalism or accidental breakage. We aim to reach you within hours to board up and secure your property, then arrange permanent glass replacement at the earliest opportunity.
Are your installations Building Regulations compliant? Yes. As a FENSA registered company, all our window and door installations are self-certified as compliant with current Building Regulations. We handle the notification process on your behalf and you receive a certificate of compliance for your records, which is important when selling your property.