Lead Windows

These wonderfully decorative and stylish double-glazed windows add panache to your home, augmenting its character and enriching its style. And you can be sure of all the other benefits John Williams lead windows give you:

• Security- all our lead windows have corrosion resistant multi-function hi-tech locking mechanisms that won’t rust, and the glass on our products is fitted from the inside, providing additional security.
• Style- discover the aesthetic enhancements to your home and be spoiled for choice with so many fabulous eye-catching designs. Create your own design to suit your personal taste and improve the character of your home.
• Relaxation- find yourself in a bubble of peaceful bliss as our lead window glass also reduces external noise.
• Value- value for money home improvements that add value to your home too.
• Lower heating bills- reduce energy bills with the special insulating properties of our glass, cut down on draughts and heat loss and protect the environment.
• Practicality- no need to worry about painting windows or filling rotting wood as all John Williams double-glazing lead windows are made from hi-tech durable materials. Giving you more time for the finer things in life!
• Peace of mind- the 10-year guarantee that comes with all our double-glazed lead windows means there’s no need to worry!

John Williams lead windows blend striking visual appeal and timeless elegance with the latest double-glazing technology available. Our lead windows are A-rated for energy efficiency- it’s the best there is. They include a soft coat low emissivity glass that reflects heat back into the room to cut down on your reliance on heating to save money.

For the eco-conscious, enjoy the peace of mind that comes with knowing that lower energy bills are the direct result of lower fossil fuel consumption and lower carbon dioxide – greenhouse - gas emissions.

When you choose John Williams lead windows you can relax in warmth, comfort and style. Call us now to discuss the range of double-glazed lead window designs we offer.

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.

An exquisite selection of lead window colours to enrich your home...

Express your individual taste in colours and designs by working with our professional design team to create the perfect double-glazed lead windows enhancement to your home.

Choose from a wide-ranging selection of fine coloured UPVC that will blend beautifully with the existing colour scheme of your property.

John Williams offers you a choice of realistic grained effects with none of the disadvantages that come with wood, such as rotting and splitting, and the resulting high maintenance.

Choose from our fine palette of colour options and add your own style to your lead windows.

So give John Williams a call now and explore how coloured lead windows can be the perfect enhancement to your home.

You have chosen double-glazed lead windows to give your home style and decorative appeal, but how secure are they?

You needn’t worry. John Williams make security a priority. Our UPVC casement lead windows conform to all British standards for security, and include the use of multi-point locking mechanisms.

That’s not all; we can also offer laminated glass to add an extra layer of protection. We glaze from the inside so the window can‘t be teased open from the outside. We also offer stainless steel multi-point locks on our windows.

On top of all of this, we thoroughly test all our double-glazing windows against attempted break-ins. That’s because, unlike many other suppliers, we manufacture all our windows in-house.

So all you need to do is enjoy your double-glazed lead windows with the assurance that you and your loved ones are secure.

THE JOHN WILLIAMS 10-YEAR GUARANTEE

The John Williams unique, no quibble guarantee has always been part of our service. Our comprehensive 10-year guarantee on products and installation goes on looking after you and your home in the years ahead, affording you lasting peace of mind.