- Product Overview
- Features & Benefits
- Security
- Quality Assurance
- Door Range
- Colour Finishes
- Guarantee
- FAQs
- Offers
- Get a Quote
UPVC Sliding Doors & Patio Doors
Let the outside in with UPVC sliding doors and patio doors from John Williams.
These stunning doors allow natural light to flood into your living space while giving you a stylish outlook to your surrounding environment.
Secure and weatherproof, UPVC sliding doors and patio doors are superior quality doors from John Williams.
They are made, supplied and fitted by our in-house staff, from a company that has enjoyed an enviable reputation for more than 40 years.
Choose sliding doors and patio doors from John Williams, and enjoy a lifestyle enhancement with a quality product from a quality company.
UPVC Sliding Doors & Patio Doors - Features & Benefits
UPVC patio doors and sliding doors from John Williams are not just new doors – they are an enhancement to your lifestyle and your home.
Add these to your living space and you will transform indoors and outdoors at once.
UPVC sliding doors and patio doors from John Williams are typical of all our products – in other words, they are quite outstanding.
They need little maintenance. Tempered safety glass keeps you and young ones safe. High levels of security, meanwhile, ensure intruders won’t even be tempted.
You will add long-lasting value to your home and improve its visual appeal, making it more attractive as a practical, elegant living space.
With a 10-year guarantee as standard, there’s nothing to stop you improving your home with a stunning set of sliding doors from John Williams.
UPVC Sliding Doors & Patio Doors - Security
They may be large and filled with light-enhancing glass, but that doesn’t mean UPVC sliding and patio doors from John Williams compromise on security.
With a turn of a key, activate the multi-point locking system and in an instant you benefit from a level of security the police have approved with their Secured by Design award scheme.
Further security options can be added to your UPVC patio and sliding Doors – just call us to discuss your requirements.
Your home is secure with sliding doors or patio doors from John Williams.
UPVC Sliding Doors & Patio Doors - The qualifications for the job
From the products we manufacture to the installation and customer services we provide, quality remains the hallmark of John Williams.
We remain one of the few companies to hold the British Standards Institution award for manufacture and customer care.
For even greater assurance, we hold no fewer than four Kitemarks - nationally recognised seals of approval - for the quality of our products and their excellent energy ratings.
And as a member of FENSA, you are safe in the knowledge that our replacement windows and doors comply with the current Building Regulations for both England and Wales.
With our products made, supplied and fitted using in-house resources, we operate stringent quality control and testing at every stage.
In this way, John Williams can maintain such high standards, and reward our customers with the very best service.
UPVC Sliding Doors & Patio Doors - Door Range
You may not believe it is possible, but such as the vast range of options available through John Williams that even your sliding doors and patio doors can be styled to your requirements.
We can add design embellishments to your doors to make them truly individual to you, and to suit your tastes and your home. Rest assured we can create something that will beautifully decorate your living space.
Add in a different colour finish or a certain type of door furniture option – the choice is yours.
And remember: if you are at all unsure what might suit your UPVC sliding doors and patio doors, be sure to call John Williams’ in-house team of expert designers.
UPVC Sliding Doors & Patio Doors - Colour Finishes
UPVC patio doors and sliding doors don’t have to be brilliant white! With John Williams, you can select from a palette of tasteful colour variations that will add timeless elegance to your home.
We colour UPVC by adding a special coating that gives a grained finish and forms an additional layer of protection for the material.
It’s a terrific value-for-money alternative to timber doors and indistinguishable from the more traditional construction material, without all the maintenance and draughty pitfalls that go with it.
Combine colour options with design variations and door accessories and create UPVC sliding and patio doors that will really make a statement.
UPVC Sliding Doors & Patio Doors - Guarantee
THE JOHN WILLIAMS 10-YEAR GUARANTEE
Invest in any products from John Williams, and you are investing in peace of mind for years to come.
That’s because we have been successfully designing, manufacturing and installing windows, doors, conservatories and roofline products for hundreds of thousands of customers for more than 40 years.
Because of the confidence we have in the superior quality of our materials, and our craftsmanship, we guarantee all our products for 10 years.
John Williams' products are designed to last, and our excellent customer service means we go on looking after you long after installation.
We are fully compliant with relevant industry bodies including the Fenestration Self-Assessment Scheme (better known as FENSA).
And with our Price Promise, all this peace of mind is offered at prices giving you exceptional value for money.
UPVC Sliding Doors & Patio Doors - FAQs
UPVC Sliding Doors & Patio Doors - Offers
50% OFF UPVC SLIDING DOORS & PATIO DOORS
Yes it's true... Order the latest energy saving PVCu Doors from John Williams this month and SAVE AT LEAST 50% OFF
Finance available, Subject to status. Terms & conditions apply.
UPVC Sliding Doors & Patio Doors Discounts



















