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Double glazing products for Sittingbourne, Kent, supplied and fitted by your local FENSA approved installers.

Windows, doors and conservatoriesOver 50 years of experience | All products are secure, energy-efficient and customizable

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Thermally efficient and secure windows available in uPVC and Aluminium.

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White uPVC casement window installed in Sittingbourne.
Chartwell green composite door in Sittingbourne close up


Composite, uPVC and aluminium doors available in styles to make your home unique.

More about our Doors


Enjoy your garden all year long and extend your home with our massive range of conservatory options.

A uPVC Conservatory

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    Ready to make your dream home a reality but don’t know where to start? Find all the inspiration you need.

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    Multi-award winning company

    Here at FineLine, we’re proud to have won many prestigious awards for our products as well as our work in the community:

    Installer awards 2022
    G21 Finalist
    SEHBAC showroom winner
    Ultraframe designer winner
    Conservatory and orangery awards winner 2019
    NHIC 2018 Consumer confidence award
    G17 Installer of the year
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    We’re one of the largest

    regional retail companies

    Vetted for professionalism, competency & compliancy

    Improving South East homes for more than 50 years

    With show centres across the South East, you’re not far away from achieving your dream home:

    See our show centres

    Our Accreditations

    FENSA Approved
    TSI Approved Code
    Ultra Installer
    QA National Warranties