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Free upgrade to triple glazing on standard uPVC windows. Ends 23:59 Sunday 28th October.

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Commercial Projects for industrial and business premises.

Commercial Projects for industrial and business premises.

SEH Commercial, part of FineLine Windows and One Group Construction, is part of the largest privately owned construction company in the UK, specialising in a number of areas including building and refurbishment, construction support services and home improvements.

With years of construction knowledge in window and door installations, road surfacing, fenestration and energy efficiency, they offer some of the most experienced and trustworthy construction service on the market.

Able to take on work for any size building, SEH Commercial is ideal for businesses that need bespoke and specialist design. With their products ranging between aluminium, PVC-U, timber, composite and special glazing applications – you should find exactly what you need, with work carried out to your specifications.

Whatever your vision for your business, SEH Commercial and its team of designers and engineers will help it come to life and work to improve the efficiency of your business.

SEH Commercial is ideal for a range of commercial projects from local authorities such as public buildings, schools, universities, libraries and council offices to private landlords as well as commercial and industrial businesses. We can also work alongside main contractors as a sub-contractor and supply chain partner. SEH Commercial can work alongside your project, offering either ‘supply only’ or ‘supply and installation’.

If you’re considering using our services for your project or are interested to find out more, our sales team can visit each project and help identify what is currently there and improvements that could be made as well as recommending cost and energy savings.

Visit our SEH Commercial Website

A Rated Windows

  • Fineline windows are typically A- or A+ rated, for maximum energy efficiency.


  • Check out our amazing finance options here at FineLine, get up to 3 years interest free credit.

45 Years of Trading

  • FineLine are celebrating 45 years of hard work trading across the south east of England.


  • Slash energy bills and add value to your home. Earn guaranteed tax-free income for 20 years.
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