Modern Windows

Modern windows, modern designs, modern technology. John Williams offers it all.

Choose double-glazed modern windows to enhance your home and take advantage of modern living:

• High-technology modern window glass that cuts out external sound, creating a haven of peace.
• Fewer draughts and reduced heat loss, keeping you snug and warm and cutting down on heating costs.
• Enhanced security features, including internally glazed glass and our award-winning multi-function locks. You’re quite safe behind a John Williams modern window!
• A dedicated design team that helps you create double-glazed modern windows that suit your purse, your style and your home’s character.
• Value for money home improvements, raising the long-term value of your property.
• More free time- to relax and enjoy home life, rather than cleaning and repairing windows that may rot, flake, fade or rust.
• Confidence in your investment thanks to our 10-year guarantee.
• You can’t beat modern living with John Williams.

So you’ve fallen for the fabulous designs we offer in our modern windows designs range. It’s a good choice and a sound investment for your home, because you’re adding decorative appeal and advanced glass technology to your living space.

John Williams’s products score an ‘A’ in energy efficiency as we use only the highest standard materials. They not only exclude draughts but also reduce ambient heat loss. Choose the soft coat low emissivity glass and heat is disseminated into the room more efficiently.

There are few more effective ways to create a more snug and cosy space.

Better energy efficiency leads to lower heating bills, too, and a reduction in carbon emissions produced by fossil fuel heating systems.

So indulge yourself by enhancing your home with double-glazed modern windows and enjoy the warm and cosy feeling of knowing you’re energy efficient.

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.

A tasteful range of coloured UPVC modern windows to transform your living space...

Realise your design aspirations by making use of our palette of fine colours to add the perfect finish to your John Williams modern windows.

Using the existing colour scheme in your home, our range of tasteful colour options allows you to express your own unique style and taste to get the perfect match for your home.

From warm white to soft pastels, the choice is yours. John Williams also offers an authentic woodgrain effect in our Modern Windows range. With our UPVC double-glazing windows offering a cost-effective and low maintenance alternative to real wood, there’s never been a better time to invest in replacement windows.

Start designing now and enrich your house with our range of truly fabulous coloured modern windows.

Add elegant flourishes to your John Williams double glazed Modern Windows to bring sophistication and individuality to your home.

An unlimited range of coloured lead and bevelled glass designs are available to match the choice of your Modern Windows.

Hand-crafted using specially formulated coloured film and real lead strips, Modern Window designs will enhance your home's appeal and character.

Take advantage of our FREE design service! Call now on 0800 66 00 55 or click here to request a call back.

Contemporary design; contemporary energy efficiency standards and contemporary security features. John Williams offers all this with our double-glazed modern windows.

We appreciate that home security is a top priority, so we make it ours, too. Our UPVC casement modern windows meets all British standards for security.

Our windows are glazed internally to prevent the glass from being prised out by potential intruders. And because we manufacture our windows at John Williams, we test them against intrusion as part of our rigorous testing regime.

We use stainless steel multi-point locking mechanisms on all windows and lockable hinges. Our multi-point locks are award-winning, having received a Secured by Design award.

If you wish you might also want to consider laminated glass as that extra level of security.

So come and talk to us about installing double-glazed modern windows and make your home more attractive and more secure.

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.