Rear Extension, Loft Room
& Full Refurbishment

ERCON is a London design and build company. We take loft conversions, house extensions and full refurbishments from the first sketch to the final coat of paint, with our own structural engineers working alongside the design and build team. That means one company looking after the design, the engineering and the build, with no hand-offs between separate firms.

Whether you want to turn unused roof space into a bedroom, add a rear or side extension to a family home, or renovate a property from top to bottom, we plan the work around your budget, your timeline and the way you live in the house. Book a free consultation and we will talk through your options.

A loft conversion is one of the most effective ways to add a bedroom and bathroom without giving up any garden. The right type – rooflight, dormer, hip-to-gable or mansard – depends on your roof shape, the headroom you have and any planning constraints on the property.

Our engineers design the steelwork, the new floor structure and the position of the staircase, and our team prepares the structural drawings needed for building control. Find out more about our loft conversion service.

Rear, side and side-rear extensions give a family home more kitchen, dining and living space, and large glazed roofs and doors bring daylight deep into the plan. Our recent extension and refurbishment in Enfield (EN3) shows how an extension and a loft room can be delivered together as one coordinated project.

We handle the design, the structural engineering and the construction, so there is one team accountable for the result. See our extension service.

From a single floor to a complete property, we renovate kitchens, bathrooms, floors and layouts and bring tired homes up to a modern standard. See what a full refurbishment looks like in our Bromley (BR1) project, or browse our refurbishment and renovation service.

• In-house structural engineers – the engineering is designed by the same team that builds the project.
• Design and build under one roof – one company from first sketch to completion.
• Free consultation – we discuss your plans and your budget before you commit to anything.
• Projects managed from start to finish – see our project management service.

We work on homes across London and the surrounding area. Recent projects include Enfield (EN1, EN2, EN3), Waltham Cross (EN8), Edmonton (N9), Southgate (N14), Walthamstow (E17) and Bromley (BR1). Browse all of our completed projects, or get in touch to ask whether we cover your area.