Home Extension Specialists
Add 23% To Your Properties Value.


Welcome to Wyea Builders Ltd Ltd, the leading Attic and Loft Conversion company based in Hertfordshire.
Are you looking for reliable, experienced, friendly Loft Conversion experts who respect your home as if it’s their own? If yes, then your search stops here! From Velux window conversions, dormer conversions, mansard conversions or even hip-to-gable conversions we have it covered. Would you like that extra space you can enjoy and be proud of? Whether you have an older Victorian property or a modern new-build, we have the means and experience to convert them.

The experts at Wyea Builders Ltd are no ordinary property developers. Each project we undertake is an ambitious and authentic collaboration with our client, helping you turn your vision into reality. We not only enhance your home with a loft conversion, we enhance your lifestyle.

Everyone’s Loft Conversion needs are different so at Wyea Builders Ltd we discuss which type of Loft Conversion best suits you. Our friendly staff always take the time to understand your unique requirements. As a premier Loft Conversion specialist in Hertfordshire, Essex and London, we’ll provide that extra care and attention your project deserves.

Home Extension Services

  • Free design consultation.
  • Written quotation tailored to your needs.
  • Removal of old suite and tiles and all boarding plastering etc.
  • All plumbing and electrical work.
  • We can supply and install a wide range of quality bathroom fittings to suit your needs.
  • All floor and wall tiling.
  • Fitting of all sundry items.
  • Local Authority Approved (Watford, Harrow & St Albans)
  • Approved Velux Installers

Featured In “At Home” Magazine.

Sarah Beeny’s Homes & Property Issue (Nov 2015)

You may be able to complete loft conversions under permitted development rights, but some loft conversions may require planning permission, so check with your local council before you begin. Consult a specialist company such as Wyea Builders Ltd who will be able to manage the entire project, including dealing with any planning permissions, if required, for a stress free solution.

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As Featured On Channel 4

Double Your House For Half The Money With Sarah Beeny

Sarah Beeney is known as one of the nations go-to property experts. Sarah became well known as the face of Properly Ladder and other such shows as Pay Off Your Mortgage, Britain’s Best Homes and more recently Double Your House For Half The Money where she helps home owners achieve their property dreams without breaking the bank.

Our Gallery

We are proud to share our projects. Take a look at our gallery for some of our recent work.


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(Now Offering 10% Off All New Enquires This Month)