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Experts in uPVC double glazing, doors and conservatories for over 35 years


If you are looking to improve your home, you’ve come to the right place.  Infil is your local expert in uPVC double glazing, doors, conservatories, extensions, roofline products, porches and canopies.  Our family-run business has been helping customers make the most of their home for over 35 years.


As independent installers, we offer a huge range of products from many different manufacturers.  So, whether you’re looking to add a conservatory or an extension as a beautiful new room, revamp your house with new modern windows and doors or improve your energy efficiency or security, we’re here to help with our expert team of designers and installers.


Founded over 35 years ago by one of our existing directors, Infil is a family run business based on a strong reputation of providing quality products and services.


Today, we supply and install an extensive range of high-quality uPVC windows, doors, conservatories and extensions made to our customers’ requirements.  In addition, we also supply and install hand-built door canopies, porches and roofline products.

We recognise that home improvements could be one of the biggest investments you make and it is important to be able to trust the company you choose.


When selecting Infil to undertake any work in your home, you can rest assured that you’ll be working with a company that offers sound advice, provides honest and fair quotes and delivers quality products and workmanship.


Our customers tell us how happy they are and that’s why so much of our new business comes from recommendations.

All of our installations are carried out by our own team of installers; we don’t use sub-contractorsThis means that we can maintain our high standards of service and workmanship at all times.


For more details of our products please contact us on 01787 477231 or visit our website www.infil.co.uk

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Our Services

Conservatory Replacement Roofs

The perfect all year round conservatory roof. A guardian roof can be installed on a new conservatory or be a replacement to an existing conservatory roof. A Guardian Warm Roof will quite literally transform your conservatory into the kind of room you always wanted, a relaxing, integral part of your home. By removing your old roof and replacing it with our thermally efficient solid, tiled roof you’ll have the perfect solution.
A Guardian Warm Roof is specially designed to keep your conservatory from overheating in the summer and retain heat in the winter.

Sun Rooms/Extension

Expertly constructed with insulated roof and walls, double-glazed windows and strong, steel-reinforced structures, a Guardian Sun Room/Extension is the affordable alternative to a traditional brick-built structure.

Available in a variety of styles and finishes and individually tailored, a Guardian Extension truly complements your living space, creating an elegant and understated room for all seasons.

Our modern and contemporary home extensions provide the ideal home improvement product that quickly expands your living space.

Windows and doors

We specialise in double glazing windows ( we also do triple glazing). Our upvc windows are A-rated for energy efficiency as standard.

With 100s of windows style, it is easy to find your perfect match which will transform your home’s appearance. With 100s of door designs, it is easy to find your perfect match which will transform your home’s appearance, deter burglars; as new doors are packed with security features and increase your green credentials enabling you to lower your energy bill.

Completed installations

Here are just a few of the completed
Guardian Warm Roof installations.

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Completed installations

Here are just a few of the completed
Guardian Warm Roof installations.

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