Multitrades Windows & Doors
Quality you can rely on
Manufacturers of Bi-fold Doors | Supply & Install Doors | Schüco Bi-folding Doors
Bi-Folding Doors / Sliding Doors / French Doors Entrance Doors / Crittal Style Internal DoorsSchüco Windows & Doors / Double Glazing WindowsCasement Windows / uPVC Sash Windows / Flush Fit Lantern Glass Roofs / Flat Skylight / Lean To Roofs
Multitrades Windows & Doors
Your Trusted Partner for Aluminium & uPVC Windows, Doors, Roofs & Glazing Solutions
At Multitrades Windows & Doors, we specialise in the design, manufacturing, supply, and installation of high-quality Aluminium and uPVC windows, doors, roofs & conservatoriesfor both residential and commercial properties. As a family run business, we are committed to providing excellent customer service, good value products and a wide range of products
Based in Watford, we proudly serve Hemel Hempstead, Milton Keynes, London, Luton, St Albans, Hertfordshire, Buckinghamshire, and beyond—bringing tailored, innovative glazing solutions to homes and businesses across the region.
Focusing on Quality, we are proud to be partners with Schüco UK Aluminium, which are truly a benchmark in the glazing industry.
Multitrade Windows & Doors – Quality Beyond Measure |Multitrade Windows & Doors – Quality Beyond Measure |
Doors: Expert Manufacture, Supply & Installation by Multitrades Windows & Doors
Crafting the Perfect Welcome: Bespoke Doors for Every Home
At Multitrades Windows & Doors, we believe a door is more than just an entryway – it’s a statement of style. Moreover, it is a promise of security and a gateway to your home. This why, we offer a complete, end-to-end service. This would include managing every step from initial design and bespoke manufacturing to precision installation and dedicated aftercare. Whether you’re seeking a show-stopping entrance, elegant internal doors, or seamless access to your garden, our extensive range of Aluminium, uPVC, and Composite doors are made to measure, ensuring a perfect fit for your property and your taste.
As a FENSA certified company, every installation we perform is backed by a comprehensive warranty, giving you absolute peace of mind in the quality and compliance of our work. Experience the Multitrades Windows & Doors difference – one company, one standard of excellence, from our workshop to your home.
Premium Windows – Manufacture, Supply & Installation
Complete Window Solution for every property
At Multitrades Windows & Doors, we provide a comprehensive, end-to-end window solution for homeowners and developers across Watford, London, and Hertfordshire. We combine precision manufacturing, a curated supply of market-leading products, and expert, FENSA-certified installation to transform your property. From sleek Schüco aluminium frames to versatile Eurocell uPVC systems, our bespoke windows are designed to enhance your home’s security, energy efficiency, and aesthetic appeal.
Our unique all-in-one service means you deal with a single, dedicated team from the initial design consultation through to manufacturing, installation, and aftercare. This guarantees seamless quality control, clear communication, and ultimate peace of mind. Experience the difference with Multitrades Windows & Doors and invest in windows that are built to last.
Bespoke Glass Roofs – British Made, Beautifully Installed
Transform Your Home & Flood it With Light
Flood your home with natural light and transform your living space with a bespoke glass roof manufactured right here in Britain. From elegant roof lanterns and sleek lean-to systems to minimalist flat skylights. Every solution is made to measure at our Watford factory using high-performance aluminium and advanced thermal glazing. Every project is unique, this why, we offer full range of bespoke glass roof configurations. Choose from our three most popular systems – each fully customisable, and each benefiting from the same rigorous British manufacturing standards.
Whether you’re extending a kitchen, upgrading a conservatory or designing a modern commercial space, our made-to-order glass roofs deliver exceptional energy efficiency, stunning contemporary aesthetics and lasting weather resistance. All installed by our own specialist teams across London, Hertfordshire and Buckinghamshire.
Quality Windows & Door
Our wide range of products for new builds, self-builds & renovations extends from traditional sash windows, bespoke timber entrance doors to modern roof lights, bi-folds and sliding patio.
All our work is guaranteed, and we have an after-sales service that we will ensure you are 100% satisfied during and after installation.
At Multitrades Windows & Doors, we are conscious of our planet and always try to use the most environmentally friendly and sustainable option. We are a responsible manufacturer and only source materials from suppliers who practice sustainable development.
Proud Schüco Partner
German Precision, British Craftsmanship
We are proud to stand as an approved partner of Schüco, one of the world’s most respected names in premium window, door, and glazing technology. This partnership is not just a badge—it is a reflection of our shared commitment to quality, precision, and long-lasting performance. As a Schüco partner, we have direct access to their advanced aluminium systems, allowing us to manufacture, supply, and install products that meet the highest engineering standards in the industry.
Every Schüco window, door, and glazing system we handle is expertly manufactured and fitted by our experienced team, ensuring flawless operation, exceptional thermal efficiency, and striking design. Whether you are upgrading your home or working on a new build project, you can trust us to deliver a complete service from start to finish. And because we believe in backing our work with real accountability, every installation comes with a full comprehensive warranty—giving you total confidence in your investment.
When you choose Multitrades Windows & Doors, you are not just choosing beautiful windows and doors. You are choosing the reassurance of Schüco engineering, the skill of local experts, and the protection of a warranty that puts you first. Contact us today to discuss your next project and experience the difference true partnership makes.
Multitrades Windows & Doors offer End-to-End Service
At Multitrades Windows & Doors, we don’t just sell windows, doors & glazing. We manage the entire process from initial concept to completion.
Get in Touch Today!
Let’s Work Together.
Windows & Doors directly from Manufacturer
Consultation & Design
Consultation & Design
Start a free quote by completing our interactive custom door builder, calling or visiting our showroom, and our estimator will help you choose the right windows & doors for your project!
Survey & Manufacture
Survey & Manufacture
Once a contract is in place our qualified surveyor will visit your site and after all details are confirmed we can proceed to manufacturing in our factory.
Professional Installation
Professional Installation
When your order is ready our FENSA registered fitters will install your products (unless you choose supply only option).
Warranty & FENSA
Warranty & FENSA
If you have filled in our Satisfaction note and ticked you require FENSA then we will register your Installation.
Customer Reviews
Excellent service all around
We’re really pleased with the new Schüco entrance door. It looks fantastic and feels much sturdier than the old one. The Multitrades team worked quickly and efficiently — we were able to keep the shop open with minimal downtime. Excellent service all around.
Z.I.C.
in Kings Langley
Now it is bright, warm, and a joy to spend time in
The lean-to glass roof has completely transformed our kitchen extension. It’s now bright, warm, and a joy to spend time in, even on gloomy London days. The team removed the old polycarbonate roof with no fuss and installed the new glass roof beautifully. Highly recommended.
A.G.
in Wandsworth
Our New Windows Completely Modernised the House
The anthracite grey windows look fantastic and have completely modernised the house. The installation team were professional, tidy, and completed the work to a very high standard. We’re extremely happy with the result.
Mr D
in Bushey
We’re absolutely delighted
We’re absolutely delighted with our new French doors. They’ve brightened up our kitchen and made such a difference in how we use the garden space. The quality of the Schüco system is outstanding, and the installation team from Multitrades were efficient, respectful, and very tidy. A fantastic service from start to finish!
Mrs. R
in St Albans
We’re extremely pleased
We’re extremely pleased with the new windows and French doors. The house feels much brighter and warmer, and everything looks so much more modern. The team was professional and efficient, and the finish is excellent. We would definitely recommend their services!
Mr & Mrs S
in Barking
We’re really pleased
We’re really pleased with the new windows and patio door. The house feels brighter, warmer, and much more modern. The installation team were professional and left everything spotless. Great experience from start to finish.
Mr & Mrs S
in Clapham Park
We absolutely love it
We absolutely love our new Schüco front door — it looks stunning and feels incredibly solid. The quality is exceptional, and we’ve already noticed the hallway feels warmer. The Multitrades team were professional, efficient, and delivered exactly what we wanted.
Mrs. R
in Bromley
The difference in comfort is night and day
You can barely tell they aren’t the original timber sashes, but the difference in comfort is night and day. The flat is warmer, quieter, and we finally feel secure. The team was respectful of our period home and left everything spotless.
Miss M P
in Brixton
The performance of the new windows is in a different league
The black Schüco sash windows have completely transformed our Barnet home. They look stunning against the brickwork and retain the traditional sash character, but the performance is in a different league. The house is warmer, quieter, and the quality is outstanding. The installation team was respectful of our period property and left everything spotless. Highly recommended.
Mr S
in Barnet
New Windows and Doors
I have nothing but praise for my new windows and doors supplied and fitted by Multitrades. From the initial showroom visit to the surveying and on to installation nothing was too much trouble.
The doors and windows themselves are top quality and have transformed the house. The fitting team let us know which area they would work day by day to minimise disruption and left the site clean and tidy. The house has a warmer feel to it and has attracted numerous comments from neighbours, one of whom I have passed on my recommendation. Friendly people to deal with, a good job done and all at a competitive price! Many thanks!
B S
in Leighton Buzzard
Our Showroom
You are more than welcome to visit our showroom.
We are open MON – FRI 8.00am – 4.30pm
SAT – By Appointments Only
For outside working hours or weekends appointments, feel free to call us on 01923238322 or email at [email protected]
We’ll be happy to meet up and discuss your Glazing, Windows & Doors Project
Multitrades Windows & Doors
Our Recent Windows & Doors Projects
Areas We Cover
Watford
Hemel Hempstead
Milton Keynes
Loton
Buckingham
Leighton Buzzard
London
Hammersmith
St Albans
Aylesbury
East Finchley
Harrow
Stanmore
Pinner
Ruislip
Dunstable
Amersham
Chesham
Harpenden
Borehamwood
Barnet
Northwood
Rickmansworth
Camden
Chelsea
City of Westminster
Berkhamsted
Tring
Chalfont St Giles
Chalfont St Peters
Gerrards Cross
Radlett
Fulmer
Toddington
Chigwell
Tower Hamlets
Islington
Haringey
Willesden
Cricklewood
West Hampstead
Windsor
Canary Wharf
Bedfordshire
Areas We Cover
The Multitrades Knowledge Hub
Expert Insights on Composite, uPVC & Aluminium Windows & Doors
Stay at the forefront of home improvement with the Multitrades Windows & Doors blog. Dive into our articles for deep dives on thermal efficiency, the latest trends in bi-fold and sliding doors, essential home security advice, and detailed guides to understanding why you should choose Quality Windows & Doors for your Watford, or London home.
Frequently asked questions
Quality aluminium sliding doors can be specified with multi-point locking and robust hardware. Security features vary by product and configuration, so it is important to choose a reputable system and professional installation.
Yes. Bi-fold doors are widely used in UK homes, particularly for extensions, kitchen-diners, and garden rooms. They are available in configurations suited to British weather conditions and building regulations.
Neither is universally better. Bi-fold doors are ideal if you want the widest possible physical opening and flexible ventilation. Sliding doors are ideal if you prioritise uninterrupted views, large glass panels, and a minimalist aesthetic. The right choice depends on your priorities and your property.
Bi-fold doors are made of panels connected by hinges that fold and stack to the side. Sliding doors have large panels that slide horizontally behind or alongside one another. Bi-fold doors create a wider clear opening; sliding doors typically retain more glass in place.
Bi-fold doors can create a very wide open aperture because the panels fold away. Sliding doors can accommodate very large individual glass panels but usually leave part of the opening glazed. The best solution depends on whether you prioritise a fully open wall or expansive uninterrupted glazing.
Sliding doors often provide cleaner, more uninterrupted views because they use large single panes with minimal vertical framing. Bi-fold doors also offer excellent views but have more frame divisions due to their hinged panels.
Both are relatively low maintenance thanks to aluminium’s durability and weather resistance. Bi-fold doors have hinges and a folding mechanism that may require occasional cleaning and lubrication. Sliding doors have tracks and rollers that should be kept clean. Routine care keeps both operating smoothly.
Yes. Aluminium door systems are typically made to measure to suit the specific opening and design requirements of each property.
No. The GRP outer skin doesn’t require painting, staining or varnishing. Routine cleaning with warm soapy water is all that’s needed to keep them looking like new.
Sliding patio doors are usually made of two large glass panels, which open by sliding one panel behind the other. Sliding doors provide easy access to gardens and patios.
A solid, level base (like a concrete foundation or an existing patio) is essential. While we specialise in the supply and installation of the conservatory structure itself, we can project manage the entire build and work with trusted groundworkers to prepare the base for you.
Absolutely. Aluminium bi-fold doors provide floor-to-ceiling glazing across a wide span, bringing huge amounts of daylight in and enhancing the indoor-outdoor connection. Even when closed, the large glass panels brighten the room.
Lower is better. What counts as “good” depends on the project, the building regulations that apply and the whole-window figure (Uw) rather than the glass alone. Rather than chasing the lowest advertised number, ask for the whole-window performance of the specific system you are considering.
Due to the higher level of craftsmanship and precision engineering required, they are typically a premium product. However, the investment is justified by their superior aesthetics, performance, security, and the added value they bring to your property.
A high-resolution area sensor embedded in the handle reads the unique characteristics of your fingerprint. It authenticates you in a fraction of a second and signals the electronic lock to release. It is weather-resistant and works reliably even with slightly damp or dirty fingers.
A glass roof is significantly quieter than a polycarbonate roof. The solid, insulated units muffle the sound of rain, creating a much more peaceful and usable space.
Generally, yes. While aluminium is very strong, uPVC is a natural insulator. Our multi-chambered uPVC profiles create a thermal barrier that prevents heat from escaping, often achieving higher energy ratings (A or A+) more cost-effectively than aluminium frames.
Not if it’s designed and built correctly. Modern conservatories with energy-efficient double glazing, thermal breaks in the frames, and options like thermal roof systems or solar control glass are designed for year-round comfort. We can also integrate ventilation and blinds to perfectly manage the temperature.
Combine large overhead glazing – like a lantern roof or flat skylight – with full-height aluminium sliding or bi-fold doors. Position the extension to capture the best orientation, choose open plan layouts, and specify slimline frames for minimal obstruction.
A glass roof is significantly quieter than a polycarbonate roof. The solid, insulated units muffle the sound of rain, creating a much more peaceful and usable space.
Schüco windows stand out due to superior German engineering that delivers tangible benefits:
-
Better Energy Efficiency: Advanced thermal breaks often meet Passive House standards, drastically reducing your energy bills.
-
Stronger Security: Integrated, multi-point locking systems are certified to the highest anti-burglary ratings for maximum peace of mind.
-
Sleeker Design & Durability: They offer remarkably slim sightlines for more glass and less frame, all while being built to last for decades with minimal maintenance.
-
Precision & Quality: Every component is engineered to work together flawlessly, ensuring smooth operation and long-term reliability that cheaper alternatives can’t match.
In short, you’re investing in proven performance, security, and comfort, not just a window.
Absolutely. We provide 10-year product guarantees and a comprehensive installation warranty.
If you are replacing existing doors, you won’t usually need planning permission to add bi-fold doors. However, if you live in a conservation area you may need to get further information from your local council before going ahead. If you plan to build an extension and add bi-fold doors it’s always best to check local building regulations before you start work.
Both are relatively low maintenance thanks to aluminium’s durability and weather resistance. Bi-fold doors have hinges and a folding mechanism that may require occasional cleaning and lubrication. Sliding doors have tracks and rollers that should be kept clean. Routine care keeps both operating smoothly.
We provide a comprehensive guarantee that covers both the Schüco product and our installation workmanship. Full details will be provided with your quotation.
Beyond classic white, we offer a extensive palette of colours, including Chartwell Green, Anthracite Grey, and Black, as well as dual-colour options (e.g., white on the inside, a colour on the outside).
Lead times vary by design and specifications, but typically range from 4–8 weeks including installation.
Yes. The solid, rigid construction of a composite door resists flexing and forced entry far better than uPVC. Combined with multi-point locking systems, they offer significantly enhanced security.
