ENTRANCE, PATIO & GARDEN DOORS
Doors for Oxfordshire homes, chosen and fitted properly
From composite, uPVC and aluminium entrance doors to French doors, sliding patio doors, bi-folds and Slide-and-Swing systems, we’ll help you find the right door for the way you use your home.
No pressure and no invented discounts — just honest advice, careful installation and support from our own Service Department afterwards.
Yale-approved installer · FENSA registered · Serving Oxfordshire since 1986
Start with where your new door is going
A front door, a back door and a wide opening onto the garden all have very different jobs to do. Start with where the door will be used and how you would like it to open. We can then help you choose the right material, glazing, colour, hardware and security for your home.
Front entrance doors
Composite, uPVC and aluminium entrance doors—from practical everyday choices to premium architectural designs.
Doors for the garden and larger openings
French doors, sliding patio doors, bi-folds and Slide-and-Swing systems, each offering a different way to open your home to the garden.
Back, side and specialist doors
Back doors, stable doors, low-threshold options and doors designed for less conventional openings or particular practical needs.
Front doors for different homes, tastes and budgets
Your front door needs to look right, but it also has a practical job to do every day. We’ll help you compare the materials, designs, glazing and locking options—and choose a door that suits your home without pushing you towards the most expensive one.
Composite doors
A popular choice for combining traditional or contemporary styling with a substantial door construction. We offer composite doors from Hallmark, Visage and Solidor, giving customers a useful range of designs, specifications and price points.
Aluminium entrance doors
Slim, strong and particularly suited to contemporary designs and larger statement entrances. We can offer aluminium doors from a range of manufacturers, including premium Spitfire entrance doors.
uPVC entrance doors
A practical, versatile choice with plenty of options for colour, glazing and panel design. uPVC doors can work particularly well for straightforward entrances, back doors and side doors.
Doors for the garden and larger openings
Whether you want a familiar pair of French doors or a wide opening that connects the room with the garden, the way each system opens makes a real difference. We’ll help you compare the space they need, how much glass you want and how you expect to use the doors every day.
French and double doors
A familiar and versatile choice for opening a room onto the garden. The two doors do not always have to be the same width—an offset arrangement can provide a more practical everyday opening where space is limited.
Sliding patio doors
Large areas of glass without doors projecting into the room or garden. Depending on the opening, panels can slide over a fixed panel, open through the centre or run on multiple tracks.
Bi-fold doors
The panels fold and stack to one or both sides, opening up a large part of the space between your home and garden. Admiral supplies bi-fold doors in aluminium and uPVC, with the right choice depending on the opening, appearance and specification.
Slide-and-Swing doors
Each panel moves independently along the track and swings aside, so you can use one panel as an everyday door or open more of the system when you want a wider opening.
See how Slide-and-Swing doors work
Not quite a sliding patio door and not quite a bi-fold. Each panel moves independently along the track and swings open, giving you flexibility over how much of the opening you use.
One panel can work as an everyday entrance, while the remaining panels can be moved aside when you want to create a much wider opening. This real Admiral installation shows the complete system opening and closing.
A real Admiral Windows installation showing four glazed Slide-and-Swing door panels. One panel opens like an everyday door, while the remaining panels move individually along the track and swing aside to create a wide opening.
Back, side and specialist doors
The back door is sometimes treated as the poor relation of the “celebrity” front door—but it may be the door you use most often.
Whether you need a straightforward back or side entrance, a stable door, a lower threshold or something for an unusual opening, we’ll look at how the door needs to work as well as how it should look.
Practical everyday doors
The back door is sometimes treated as the poor relation of the “celebrity” front door—but it may be the door you use most often.
Stable doors and pet-friendly options
Stable doors allow the upper and lower sections to open separately. Pet doors can also be considered where the door construction and chosen design make them suitable.
Less conventional openings
We can help with accessible and low-threshold options, as well as practical door arrangements for wider or less conventional openings where an ordinary entrance door may not be the best answer.
Door security starts with the whole door
A good lock matters, but it cannot compensate for a poorly constructed or badly fitted door. Proper security comes from the door, frame, glazing, hinges, hardware, locking system and installation all working together.
The right specification
We’ll help you consider the door’s construction, glazing and hardware—not simply its appearance—so the complete specification is appropriate for your home and the way you use it.
Yale-approved installation
As a Yale-approved installer, Admiral can offer modern Yale locking solutions and explain the available options clearly, without unnecessary technical jargon.
Fitted properly
Even a well-made door needs to be surveyed and installed correctly. Careful fitting helps the door close, seal and lock as it should—and our own Service Department is here if it ever needs attention afterwards.
A REAL ADMIRAL INSTALLATION
Different products, chosen for different jobs
The windows preserve the character of the brick property, while the entrance door provides a strong contemporary focal point. The sliding and bi-fold doors bring much more of the garden into the living spaces, while the switchable privacy glass makes the gym practical as well as impressive.
Bringing everything together required careful surveying, product coordination and installation across several areas of the home—not simply choosing products from a catalogue.
One home, five different window and door solutions
This Oxfordshire project is a good example of why every opening should be considered individually. The owners wanted to update the whole property, but that did not mean using the same type of product everywhere.
We installed Silvered Oak Residence 9 flush casement windows throughout the home, together with a premium Spitfire aluminium entrance door. At the back, the original double doors and side windows were replaced with sliding doors, creating a much wider view of the garden.
The garage was transformed into a home gym, with aluminium bi-fold doors opening onto the patio. Remote-controlled privacy glass allows the glazing to change from clear to private whenever required. We also replaced an older timber back door with a practical black stable door.
Spitfire aluminium entrance door
Sliding doors opening onto the garden
Remote-controlled privacy glass in the home gym
WHAT TO EXPECT FROM ADMIRAL
A straightforward process, from first conversation to aftercare
1. Honest, practical advice
Tell us what you need the door to do and what matters most to you. We’ll explain the suitable materials, opening styles and specifications without pushing you towards the most expensive option.
2. A proper survey
Before anything is ordered, we check the opening carefully and confirm the measurements, configuration, opening direction, threshold, glazing and hardware.
3. Careful installation
Our fitters remove the existing door where required, install and adjust the new one properly, and leave the working area clean and tidy when the job is finished.
4. Support afterwards
Our own Service Department is here if your door ever needs attention. Our own Service Department is here if your door ever needs attention. Every residential door installation is also protected by Admiral’s 10-year insurance-backed guarantee.
CUSTOMER EXPERIENCES
What customers say about their new doors
From choosing the right door to the final fitting, here is what some of our customers have said about working with Admiral.
★★★★★
“Admiral replaced a door for me and provided a fantastic service, right through from the initial survey to installation… professional and quick… spotless.”
Jonny Pugh
Google review
★★★★★
“...fitted French doors. They arrived on time, were very efficient, polite and friendly… The job was finished quickly and left clean and tidy.”
Debbie White
Google review
★★★★★
“Supplied and fitted a quality composite door that allows easy access for both pedestrians and wheelchairs.”
Michael Kelly
Google review
COMMON QUESTIONS
Questions people ask about choosing a new door
Which material is best for a front door?
There is no single best material for every home. Composite doors have a substantial construction and suit both traditional and contemporary homes, while aluminium is particularly well suited to modern designs and statement entrances. uPVC is a practical, versatile choice with plenty of colours and glazing options. The right choice depends on your property, the size and position of the opening, the appearance you want and your budget. We’ll help you compare the complete door specifications without automatically steering you towards the most expensive option.
How much does a new door cost?
The cost depends on the material, size, design, colour, glazing and hardware you choose. Side panels, specialist thresholds, premium locking systems and alterations to the existing opening can also affect the price. A straightforward replacement door will naturally cost less than a large entrance arrangement or a project involving additional building work. Once we understand what you need and have assessed the opening, we’ll provide a clear quotation covering the agreed door and installation.
Can I replace one type of door with another?
Often, yes. French doors can sometimes be replaced with sliding or bi-fold doors, while an existing door and side-window arrangement may be redesigned to create a wider glazed opening. We need to consider the dimensions and construction of the opening, the surrounding walls, internal and external floor levels and the space needed for the chosen doors to operate. We’ll survey the property, explain what is practical and identify whether any additional building work may be required.
Can you provide low-threshold or accessible doors?
Yes, lower-threshold and accessible door arrangements can be considered as part of the specification. Accessibility involves more than the threshold alone: the clear opening width, surrounding floor levels, approach to the entrance, drainage and position of the handles may all need consideration. Because every property and user’s requirements are different, we’ll assess the opening and help specify a door that provides practical access while remaining secure and weather-resistant.
Can you fit a cat flap into a uPVC, composite or glass door?
Yes. Cat flaps can be fitted into suitable uPVC and composite doors, and Admiral can also install them in glazed doors, including patio and bi-fold doors. For a glass door, the existing toughened glass cannot simply be cut. A new sealed glass unit must be manufactured with an opening made specifically for the chosen cat flap before the glass is toughened. It is therefore important to select the cat flap and tell us about it before the new panel or glass unit is ordered. We’ll check the door construction, the proposed position and the cat-flap specifications so that the correct solution can be planned.
What happens if my door needs adjusting afterwards?
If your door needs attention after installation, you can contact Admiral’s own Service Department. We can assess problems with closing, sealing, handles, hinges or locking and arrange the appropriate adjustment or repair. Having our own aftercare team means you are not simply left with a manufacturer’s telephone number once the fitting is complete. Having our own aftercare team means you are not simply left with a manufacturer’s telephone number once the fitting is complete. Every residential door installation is also protected by Admiral’s 10-year insurance-backed guarantee.
AREAS WE COVER
Door installation across Oxfordshire and surrounding areas
Admiral Windows is based in Oxfordshire and has been fitting doors in local homes since 1986.
Our regular residential service area covers Oxford, Oxfordshire and selected surrounding areas, including parts of Buckinghamshire, Berkshire, Wiltshire, Northamptonshire and Hertfordshire.
We regularly work across postcode areas covering Oxford, Milton Keynes, Reading, Slough, Swindon, Brackley and Hemel Hempstead. For most residential work, we stay within our listed service area so we can provide proper surveys, careful fitting and reliable aftercare.
Areas we regularly cover
Oxford · Milton Keynes · Reading · Slough · Swindon · Brackley · Hemel Hempstead
And many towns and villages across the surrounding postcode areas.
Not sure whether we cover your area? Just get in touch—if we can help, we will.
A whole-home aluminium installation in Harwell
READY WHEN YOU ARE
Let’s talk about your new door
Whether you are replacing a tired front or back door, opening a room onto the garden or planning something less conventional, we are happy to talk through the options with you.
Tell us what you have in mind, and we’ll arrange a visit, answer your questions and provide a clear quote without pressure.
Just have a quick question?
No hard sell. Just honest advice from a local company fitting doors across Oxfordshire since 1986.
Why Choose Admiral Windows?
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Serving Oxfordshire since 1986
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FENSA-registered installers
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TrustMark Accredited company
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Wide range of British-made doors
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Friendly, no-pressure advice and free quotes
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Courteous, tidy, experienced fitters
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10-year guarantee and aftercare included
“Open and Honest Pricing” Promise
We don’t use gimmicks, false discounts, or hard sales tactics. You’ll receive a clear, honest quote — no pressure, no obligation. Just helpful, straightforward advice to help you make the right decision for your home.
Get a Free Quote Today
Whether you're looking to refresh your home’s appearance, improve insulation, or upgrade security, Admiral Windows is here to help.
Contact our team today for a free consultation and quote on your new doors.
Call Now 01865 788 333
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