Fenster Glazing
uPVC Sliding Doors
Patio doors create a smooth, space-saving connection to the garden. We specify uPVC sliding patio doors around pane layout, track, colour, glazing, security and threshold details so the doors suit both the room and the outside level.
Key specifications
uPVC Sliding Doors
- U-value 1.2 W/m²K
- Colour choice 16 options
- Design Space-saving
- Configuration Up to 4 panes
Product information
uPVC Sliding Doors
Patio doors create a smooth, space-saving connection to the garden. We specify uPVC sliding patio doors around pane layout, track, colour, glazing, security and threshold details so the doors suit both the room and the outside level.
Space-saving sliding access
Sliding panels do not swing into the room or patio, making them useful where space is tight or furniture sits near the opening.
Up to four panes
Configurations up to four panes can be considered, depending on opening width and survey conditions.
Efficient uPVC frame
Liniar-style multi-chambered uPVC frames and modern glazing support year-round comfort in a large glazed opening.
Secure sliding hardware
Locking, keeps, handles and glazing are specified together to make the patio door practical and reassuring.
Threshold and drainage check
We review track position, drainage, floor levels and access before the doors are ordered.
Space-saving sliding access
Sliding panels do not swing into the room or patio, making them useful where space is tight or furniture sits near the opening.
Up to four panes
Configurations up to four panes can be considered, depending on opening width and survey conditions.
Efficient uPVC frame
Liniar-style multi-chambered uPVC frames and modern glazing support year-round comfort in a large glazed opening.
Secure sliding hardware
Locking, keeps, handles and glazing are specified together to make the patio door practical and reassuring.
Threshold and drainage check
We review track position, drainage, floor levels and access before the doors are ordered.
Product guide
More information on uPVC Sliding Doors
Patio doors are the value-led sliding option for garden access, with a uPVC frame, practical track, up to four-pane layouts and reliable everyday security.
uPVC slider
Space-saving
Material
Liniar-style uPVC sliding patio door profile
uPVC patio doors are the cost-effective sliding option when aluminium sightlines and very large panes are not needed.
Configurations
Two, three and four-pane styles depending on opening width
The number of panes depends on opening width, access position and how much fixed glass you want.
Operation
Smooth sliding panels without swing space into the room or patio
Sliding panels save space because they do not swing into the room or out onto the patio.
Survey check
Track, drainage, floor level, threshold and locking alignment
The survey confirms floor levels, drainage, track condition and locking alignment before manufacture.
Specification choices
Finish the design with your colours, glass and hardware.
Choose your colours, privacy glass and hardware; each guide helps narrow the detail before survey.
Colour
Sixteen colours outside, matched or white inside.
A uPVC colour is a foil bonded to the profile at the factory rather than paint applied afterwards, which is why the woodgrains have a grain you can feel and why none of them need repainting.
- Smooth White No foil, RAL 9003
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White
Foil, RAL 9010
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Cream
Foil, RAL 9001
-
Chartwell Green
Foil
-
Irish Oak
Foil
-
Golden Oak
Foil, RAL 8001
-
Rosewood
Foil
-
Anthracite Grey
Foil, RAL 7016
-
Black Brown
Foil, RAL 8022
-
Agate Grey
Foil, RAL 7038
-
Silver Grey
Foil, RAL 7001
-
Basalt Grey
Foil, RAL 7012
-
Slate Grey
Foil, RAL 7015
-
Gale Grey Finesse (Anthracite Smooth)
Foil, RAL 7016
-
Blue
Foil, RAL 5011
-
Dark Green
Foil, RAL 6009
-
Dark Red
Foil, RAL 3011
Availability, lead time and cost vary by colour, so we confirm all three before you order rather than after. Compare colours across every material
Handles
Five finishes on the sliding patio handle.
A sliding door takes a long D-pull rather than a lever, because you are moving the weight of the sash sideways rather than turning a latch. The same shape sits on both faces, with the cylinder in the plate below it.
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White
-
Black
-
Chrome
-
Gold
-
Satin Silver
The handle is reversible, so it suits doors sliding either way. We set the handing and which face takes the key at survey. See the full handle specification
Product questions
FAQs about uPVC Sliding Doors
Are patio doors different from aluminium sliding doors?
Our patio doors are uPVC sliding doors, while aluminium sliding doors use slimmer aluminium frames for larger glass areas.
How many panes can patio doors have?
Configurations up to four panes can be considered, subject to opening size and survey.
Are patio doors energy efficient?
Yes. Modern glazing and supplied U-value information help show how the doors support comfort.
Can patio doors be secure?
Yes. Secure locking, suitable glazing and correct installation are all part of the final specification.
Can I choose colours and handles?
Yes. Frame colour, handle finish and glazing options can be chosen around the property and wider project.
Order process
A clear process from first quote to aftercare.
Four steps. The first one has two ways in: price it yourself online, or have us come out. After that it runs the same either way.
Your price
Price it yourself on the online tool, or book a free consultation and we build the same quote with you. Both run on the same price list, so the figure matches.
Technical survey
Once you go ahead we survey before anything is made. Not a second sales visit: the measurements, thresholds and fixings the factory needs to build it right.
Installation
Fitted by our own installers rather than subcontractors, trained on the systems we sell and working carefully in a house someone lives in. We clear up after ourselves before we leave.
Aftercare
A ten year insurance-backed guarantee through the CPA on new windows and doors, and your FENSA certificate sent direct. Anything afterwards, you ring us, not a call centre.
What Milton Keynes homeowners say
Real reviews from real installations. Every one is public, so you can go and check them yourself.
Stuart Matthew
7 months ago
Fenster have just completed a front door installation on my new property - fantastic job and strongly recommend! The online design tool is great, Perry back at HQ is brilliant as is his communication. Andy, who installed the door, is a top gent and professional. Will definitely be a returning customer.
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Joanna Hayes
2 months ago
Really happy with the service we received from Fensters Windows. Aaron and Shane turned up on time and were both really friendly. They explained any issues as they went along and talked us through the different options, which we really appreciated. They did a great job fitting our new back doors and cleaned up everything afterwards. We also paid exactly what we had originally been quoted, with no unexpected extra costs. Really pleased with our new doors and would definitely recommend Fensters Windows. Thank you Aaron and Shane!
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Digger
2 months ago
We have used Fensters for years on a variety of glazing work, and 2 door installations. They are competitively priced and responsive. They take great care over measuring and specifying the work, giving you a clear quote so you understand what you are getting (thanks Perry!). The fitters are all extremely competent and personable. We had to replace our front door for accessibility reasons, they gave us confidence that our requirements would be met, reproduced the intricate leaded and stained-glass pattern of our old door, and did a quality fitting job (thanks to Johnnie and Shane!). In summary they are our go-to suppliers for all replacement and repair work.
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Silvia Peraro
a month ago
I had an excellent experience with Fenster Glazing from start to finish. Nick Perry and David managed the initial quote to installation process seamlessly, keeping communication clear, honest, and completely stress-free. When it came to the actual fitting, Zac and Shane did a fantastic job with the installation, working efficiently and leaving everything spotless. The professionalism from the entire team was top-notch, and the final result looks brilliant. I highly recommend them.
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Bernie Raffe
3 months ago
Great service from Fenster Glazing, very happy with our new bi-fold door, glass door and windows (with built-in blinds) There was an issue with the wrong spec of glass provided to them from their supplier, so they had to temporarily board up a door and a window, but this was put right within a few weeks. Recommended, thanks.
Read on Google Zak Jessup 12 Jun 2025Cannot recommend higher! Nick and Perry were really helpful in getting my windows sorted ASAP.
Read on Google Norman Cummings 10 Jun 2025The best service ever, great workmen, very high standard and in the finish, excellent eye to detail.
Read on GoogleOur work
Recent work across the range.
Jobs we have finished recently, fitted by our own installers and photographed the day we finished. They cover the range rather than this product.
uPVC casement window, Loughton
A badly fitted window left by a cowboy builder, replaced with a two-tone Liniar uPVC casement and finished cleanly inside and out.
Read case study
Composite front door and sidelight, Milton Keynes
An anthracite grey composite front door and a full height sidelight, replacing a white uPVC door and a side panel boarded across its bottom half.
Read case study
Secondary glazing, Winslow
Six secondary glazing units in a listed Winslow home, five horizontal sliders and one lift-out, fitted inside the original windows in white aluminium.
Read case studyStart your project
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Send the basics and the team can guide you through styles, pricing, survey and installation options.
Keep exploring
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From the blog
Worth reading before you decide.
Why uPVC doors stick in wet weather
A door that locked fine all summer and drags in October is a seasonal pattern with a mechanical cause. What autumn does to doors, and the fix.
A new front door before winter: composite or uPVC, honestly
Composite and uPVC front doors compared honestly: warmth, security, colour, feel and cost logic, and which one actually suits your house before winter.
The 20-minute autumn check that saves winter callouts
A practical September walk-round of your windows and doors: seals, hinges, locks, drainage and the small fixes that stop midwinter failures and cold rooms.
Where we fit
uPVC sliding doors in Milton Keynes and the towns around it.
Each town has its own page: the homes there, what to check before you order, and who to ask about permission.