Sliding patio door installation

Inline sliding patio doors are easy to open, easy to clean and give you a panoramic view of the garden.

Design your door

Inline Sliding Patio Doors | West Yorkshire Patio Door Installers

Experienced patio door installers


Calder Windows is an experienced, family-run firm in Wakefield. Here's why we're the first choice for patio doors in West Yorkshire.

Real customer service

We don't hide behind scripts. We talk to you to learn what you're looking for and how we can make it happen.

Real experience

We have more than 30 years' experience, so you can count on us for high-quality sliding patio door installation, delivered with a smile.

Real peace of mind

Your 10-year warranty* means we're on hand to provide great aftercare should you need it.

Introducing our uPVC inline patio doors

Affordable, sturdy and stylish.


Whether you're living in a house or a ground-floor flat, whether it's a vintage property or bang up-to-date, there's something for you in our collection of inline patio doors.


Choose from our range of attractive uPVC frames, colours and finishes. Do you need blinds to go with them? We can fit integrated electronic Uniblinds.


Let us bring you closer to the house of your dreams with stylish, practical patio doors.

Bring your home and garden closer together

Sliding patio doors are a great way to bring your home and garden closer together. They let the light in and create a whole new view for you and your guests to enjoy.

Keep the heat in and your bills down

Like all our products, our sliding patio doors are designed with energy efficiency in mind. This means cosier winters – and cheaper heating bills.

Enjoy advanced locking and toughened glass

Our uPVC door-length windows are sturdy, energy-efficient and safe. They're made in Britain and are built to last.

Get a FREE quote

Are you looking for sliding patio door installation or patio replacement doors? Look no further! Get a free quote or apply for finance – and start dreaming of the doors you've always wanted.

Request a quote

Frequently asked questions

  • Are patio doors with blinds energy efficient?

    Yes – our uPVC inline patio doors are great at keeping the heat in.

  • Are patio doors secure?

    Our uPVC inline patio doors come with advanced locking and toughened glass – so they're far from being an easy target.

  • Do patio doors need planning permission?

    Most of the time, patio doors don't need planning permission – but it's always worth checking.

Brochures to download