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telescope in front of sliding slim doors

Sliding Patio Doors Slough & Watford

These designs frequently make bold statements while being able to save space. If you live in a home with a balcony or a significant amount of furniture, sliding patio doors can be an ideal solution for you. And with slim sightlines, the window frames don’t interfere with the view.

We don’t believe in cutting corners by bonding the glass on site. Instead our slimline sliding doors are bonded by London Architectural Glass to ensure maximum performance and durability throughout the lifespan of the door.

At Direct Trade, we try to offer the most up to date materials with modern looks. That’s why we choose to use aluminium. Homeowners can choose from multiple panes and multiple tracking systems for ultra wide apertures with sliding patio doors. Create a modern and elegant home with your next installation.

Weatherproof & Energy Efficient

There’s a reason that we use aluminium so often, even when we love the steel looks of our other products. It’s not just that it’s lightweight and easy to use, though that’s important. It’s that aluminium is incredibly weatherproof. It doesn’t stain as wood does, and aluminium sliding patio doors stay colourfast for years to come.

Unlike other materials, it has a high melting point so that it won’t warp. And polyamide thermal breaks mean that it’s thermally ‘broken’ to reduce heat transfer out of your home. Aluminium and polyamide have a lot of the same properties, which is why they work so well together.

Keep in mind that aluminium offers the best U-values on the market, and our slimline sliding doors have U-values of 1.3 W/m2K. And with your sliding patio doors, aluminium offers better energy efficiency. You’ll reduce draughts and dampness in your home when you choose aluminium.

Talk to our team about our steel alternatives for entry doors, bifold doors, and internal screens. And if you’re a tradesperson looking for a patio door supplier, get in contact today.

Clean and minimalist seating area featuring slimline sliding doors

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Cortizo COR Vision sliding door

The COR Vision sliding door from Cortizo is a super slender aluminium system offering outstanding versatility and creating a high-end sliding door solution for any property. Frames can also be embedded with the surrounding walls, maximising the amount of glass on display.

U-value of 1.3 W/m²K
20mm interlock profile
30mm maximum glazing thickness
Up to 6 sashes and 3 rails
Polyamide strip length from 16 to 24mm
Maximum sash width of 2500mm and height of 3000mm
Maximum sash weight of 320kg

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Cortizo 4600 lift and slide door

Cortizo’s 4600 lift and slide door completely transforms the look of any space, while exhibiting some of the best thermal efficiency on the market. The system is perfect for enclosing large spaces while providing maximum light, with an ultra-smooth opening action and perfect sash sliding over a stainless steel track.

U-value of 0.9 W/m²K
110mm standard section and minimalist solution of 50mm
Possibility of large sash dimensions ideal for enclosing large spaces
Maximum glazing thickness of 55mm
Maximum sash width of 3300mm and height of 3300mm
Maximum sash weight of 400kg

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Cortizo 4700 sliding door

The 4700 sliding door system offers superb contemporary styling and robustness while also maximising natural light. Modern and practical, this system creates a seamless transition between indoor and outdoor spaces while delivering energy efficiency and thermal retention.

U-value of 1.1 W/m²K
Stainless steel rails allow for ultra-smooth sliding
Maximum glazing thickness of 34mm
47mm interlock profile
Maximum sash width of 2500mm and height of 3000mm
Maximum sash weight of 280kg

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4700 Sliding doors leading to blue deck chairs in sun lounging area

A good lock is not enough

Our Gold Standard
We use Ultion locks as standard, ensuring our customers can offer the highest security on the market.

Guaranteed
Ultion supplies a powerful lock, with an equally powerful anti-snap guarantee. Should your customer’s lock break by snapping, Ultion will refund them £2000.

State of the Art
Ultion locks have 11 pins, creating just under 300k lock combinations, making it virtually impervious to picking.

Accredited
Ultion locks are Kitemark approved, and Secured by Design, tested to rigorous police standards.

About Us

Sliding Patio Doors Prices Slough & Watford

If you’re looking to install sliding patio doors, look no further. Our helpful quoting tool helps you with your financial planning. That way, you can know prices and budget ahead of time. Use our quoting engine to find designs, colours and more. We install sliding patio doors throughout the South East.

Modern building with lift and slide doors Cortizo

Cortizo 4600

Cortizo COR Vision

Cortizo 4700

Colours

Glass Options

Hardware Options

Downloads

Gallery

Benefits

Cortizo 4600

Technical Specification

Maximum glazing thickness
55 mm
Opening possibilities
Sliding of 2, 3, 4 & 6 sashes
Possibility of 1 rail (1 sash + 1 fixed light)
& 3 rails
Sections
Frame 160.6 mm - 3 rails 251 mm
Sash 70 mm
Profile thickness
Door 2.0 mm
Polyamide strip length
Frame 35 mm / Sash 24 mm
Maximum dimensions/sash
Width (L) = 3,300 mm
Height (H) = 3,300 mm
Maximum weight/sash
400 kg

Please consult regarding maximum weight and dimensions for other opening types

Finishes
Possibility of dual colour systems
Colour powder coating (RAL, mottled and rough)
Wood effect powder coating
Anti-bacterial powder coating
Anodised

Cortizo COR Vision

Technical Specification

Maximum glazing thickness
30 mm
Opening possibilities
Up to 6 sashes
Up to 3 rails
1 sash + 1 fixed / 2 sashes + 1 fixed
Pocket solution possibility in 1, 2, 3 & 4 sashes
Possibility of interior and exterior corner at 90º without mullion
Sections
Frame – 116 mm - 182 mm 3 rails
Sash – 37 mm
Profile thickness
Door 1.7 mm
Polyamide strip length
From 16 to 24 mm
Maximum dimensions/sash
Width (L) = 2,500 mm
Height (H) = 3,000 mm
Maximum weight/sash
320 kg

Please consult regarding maximum weight and dimensions for other opening types

Finishes
Possibility of dual colour systems
Colour powder coating (RAL, mottled and rough)
Wood effect powder coating
Anti-bacterial powder coating
Anodised

Cortizo 4700

Technical Specification

Maximum glazing thickness
34 mm
Opening possibilities
Sliding of 2, 3, 4 & 6 sashes
Possibility of 1 rail (1 sash+ 1 fixed)
Possibility of 3 rails
Possibility pocket solution 1, 2 & 4 sashes
Sections
Frame 120 & 115 mm
Sash 50 mm
Profile thickness
Balcony 1.5 mm
Polyamide strip length
20 & 25 mm
Maximum dimensions/sash
Width (L) = 2,500 mm
Height (H) = 3,000 mm
Maximum weight/sash
280 kg

Please consult regarding maximum weight and dimensions for other opening types

Finishes
Possibility of dual colour systems
Colour powder coating (RAL, mottled and rough)
Wood effect powder coating
Anti-bacterial powder coating
Anodised

Colours

Pure White RAL-9010

Matt White

Matt Brown

Jet Black RAL-9005

Grey

Gloss White

Gloss Off White

Dark Red

Dark Grey

Dark Green

Dark Brown

Dark Blue

Cream

Black

Anthracite Grey RAL-7016

Airforce Grey

Glass Options

Unglazed

Standard Self Clean

Standard Tough

Solar Control

Self Cleaning

Self Clean Solar Control

Satin Obscure

Laminated Security

Hardware Options

Black 9005

Custom ral

Dark silver

Grey 7016

Light silver

White 9010

Downloads

COR Vision Brochure

Gallery

Slimline sliding doors in modern living room

Cortizo slimline sliding doors on modern property with swimming pool

Slimline sliding doors on modern building

Sliding doors in modern home with gold deer heads on wall

Modern minimalist home with slimline sliding doors

Benefits

Lowered Thresholds — Installers know that government standards continue to rise for accessibility standards and those with low mobility. But lowered thresholds are helpful to everyone, considering that they reduce tripping hazards. Raise the home value by complying with government standards and anticipating future needs.

Reduced Space — Sliding patio doors are the perfect option for homes with balconies or gardens with reduced space. They fit within the frame rather than protruding from the entry. This can help those who have furniture or other obstacles that might hinder swing doors.

Multi Track Options — The multi track options are helpful for those who plan on having multiple sashes with large apertures. It can help open and close your sliding patio doors with ease and efficiency, ensuring that these doors don’t catch.

Sleek Looks — Aluminium profiles with slim sightlines look elegant in any home. Plus, aluminium improves the energy efficiency of your sliding patio doors. With polyamide thermal breaks to help ‘break’ heat transfer outside of the home, your home can afford stunning views and stay warm all year round.

Natural Light — Installing sliding patio doors is a great way to bring natural light into the home. And improving natural light is a great way to improve the moods of every homeowner. Bring light into those dark places when you install sliding patio doors.

Beautiful Views — Whether you’re a homeowner or in the trade, you can create beautiful views when installing sliding patio doors. They work well for both garden or city views and give homes more ambience. Most of our customers appreciate being able to see their gardens throughout the year.

Supply to Trade — Direct Trade fabricates and supplies aluminium sliding patio doors to installers throughout the South East. We have in house manufacturing facilities and highly automated software, in order to lower the lead times between orders and your installation. You can get in touch with our Slough team for more information.

Delighted Customers Share Their Experiences

At Direct Trade Windows, our commitment to excellence is reflected in our exceptional customer satisfaction.
We take great pride in our impressive 4.9 rating on Google, a testament to the unparalleled quality and service we offer.

Check Out Our Google Reviews

Highly recommend this company for doing a fantastic job in fitting windows and doors. Very good quality windows , fantastic service and all for a good price. Attention to work on there fitting. We are extremely happy

Jack Vasiliou

Brilliant company, everyone I dealt with through from initial quoting to installation were very helpful and friendly, the fitters were excellent, the product is fantastic and the price is reasonable, what more can you ask for!

Ryan Flynn

Superb company. Highly recommend them. Proper engineers for design and fitting. We changed spec due to some building changes and they were clear and responsive to queries and redesign. Really trustworthy group of people from sales to design to fitting. I would use them again without hesitation. Warm regards Daniel

Daniel Champman

The team delivered great sliding doors at a more competitive price than other suppliers. They responded to our changing development schedule without making it an issue and have provided great aftercare as well.

Daniel

We had been severely let down by a previous supplier, but when we turned to Direct Trade Windows for help, we hit the jackpot. Helping us to transform a residential development in Hersham, they supplied us with high-quality, ultra-slim Cortizo sliding doors, complete with the bespoke sliding options that we needed. Our requirements were very specific and not readily available on the market, but Direct Trade Windows really went the extra mile to help us out, coming through with quality products and excellent service. We will definitely be using their services again.

Park Lane Developments

Nothing but praise for this outfit. It was a pleasure to work with them. It was a nerve-wracking undertaking for us, the biggest single expense to fit three large window/french door combos in our extension, yet the team made it a relatively relaxing experience with their professionalism and good humour. Thank you all so much for everything you and the whole team have done to get from the initial sale (well done Hash!) to the fun visit we made to the workshop, to the design and its multiple iterations (thank you Taz!) and finally to the installation. Thoroughly recommended.

Eloise Price