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Double Glazing Windows

Purpose-built double-glazed windows for the home from Roofline Design

Our uPVC windows provide unparalleled security and A-rated energy efficiency, are available in a wide range of window frame colour options and come with a 20-year guarantee.

The best range of double glazing colours and styles

Double glazing windows have become essential additions to the home, improving insulation and reducing heat loss, thereby helping buildings become more energy efficient and much less draughty!

In addition to the reduced energy bills this can provide, homeowners also see the added bonuses of soundproofing (perfect for houses on a main road) and improved security.

With a big impact on your comfort while in your home, as well as on a house’s resale value, double glazing is an important investment – so why settle for something that doesn’t match the rest of your exterior? At Roofline Design, we offer a huge range of window styles, so you can be sure you’ll find the right fit.

Technical Specs

  • uPVC and reinforced steel frames, with a 20-year guarantee
  • A-rated energy efficiency
  • High-security locking
  • Fairtrade-approved
  • TrustMark-approved

Choose your casement window frame finish today

Our uPVC window frames are reinforced with steel, making them incredibly sturdy, secure and long lasting. But perhaps best of all, they are available in more than a dozen colour finishes.

Whether you’d like a simple and modern white, a traditional wood grain finish or a vibrant, colourful frame, Roofline Design offer styles that will suit any home’s façade.

  • white windows
  • wooden windows
    Wood Grain
  • colourful windows
  • Glazing bars and opening styles

    Our windows are purpose-built to order, meaning we can provide double glazing casement windows in a variety of opening styles, whether they are top-hung, left-hung, right-hung, or a combination of the three.

    In addition, we can also install sliding windows, as well as tilt and turn windows. Just contact us for more information, or a no-obligation quote.

    For the finishing touches, we also install glazing bars for double glazing windows in both grid and diamond patterns, allowing you to achieve a range of striking effects.


    Your new windows will be installed by our trained and accredited team, who will visit your home, carry out all of the work, tidy up after themselves, and remove all rubbish from your property, all of which is included in the price.

Special Offers

We regularly run offers on a wide variety of our products.

You can see our current offers below. Please be aware that stocks may be limited, so get in touch today for a quote.

Fascia, Soffit & Guttering

Replacement from £1200

Complete Replacement of your Fascia, soffits & Guttering
Insurance Backed Guarantee with all installations
Free bird guard & Felt Tray
Free concealed ventilation.
Free estimates.
Call 0800 032 08 02
or fill in the form!

Tiled Conservatory Roofs

from £3995

New lightweight tiling.
Cool in summer, warm in winter.
Fully insulated.
Fully boarded.
Fully plastered.
3 Free spotlights.
Call 0800 032 08 02
or fill in the form!

Firestone Rubber Roofs

from £900

Complete removal of existing roof.
Insulated using Kingspan.
New OSB 18mm boarding.
Firestone EPDM rubber membrane cover.
Free survey and quotations.
Call 0800 032 08 02
or fill in the form!
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Any questions

If you’d like to know more about our windows, are wondering whether we work in your area, or have any questions at all, please don’t hesitate to get in touch with our team. You can call us for a free quote today on 0800 032 0802 or click below to send us an email.

Click here to drop us a line

Did you know – we do doors too

Roofline Design also provide a huge range of composite doors for the home, with finishes to match our windows, and a 20-year guarantee. Come and take a look.

Click here to see our UPVC doors

Call us free from landline: 0800 032 0802 Call us free from mobile: 0330 660 0647 Email: [email protected] Check out our reviews
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