Home extensions
Rear, side-return, wrap-around and double-storey extensions designed around your property.
Explore services →Local construction services
Builders in Biggin Hill
SEM Group provides home extensions, loft conversions, renovations, new builds, kitchens, bathrooms and complete design-and-build services in Biggin Hill.
Building in your area
Designed carefully. Managed clearly. Built properly.
SEM Group helps Biggin Hill homeowners extend, modernise and improve their properties. From additional family space to complete refurbishment, our team can coordinate the technical preparation and construction through one managed service.
Our Biggin Hill service can include architectural drawings, planning support, structural calculations, Building Control coordination, Party Wall assistance, construction and final finishing, with clear communication from consultation to handover.
Arrange a consultation →Services available
Complete support for your project.
Choose an individual building service or ask SEM Group to coordinate the complete design-and-build journey.
Loft conversions
Dormer, rooflight and hip-to-gable conversions with structural and staircase coordination.
Explore services →Renovations
Complete refurbishments, structural alterations and interior transformations.
Explore services →Kitchens & bathrooms
Design, supply and professional fitting with all associated building services.
Explore services →New builds
Managed construction from pre-start planning through to completion and handover.
Explore services →Design & technical
Architectural drawings, planning, structural calculations, Party Wall support and Building Control.
Explore services →Locations covered by this team
Biggin Hill
Planning a project in one of these locations? Tell us about the property, the work you have in mind and your preferred timescale. We will help you understand the most practical next step.
Discuss your project →Have a project in mind?
Let’s build something
exceptional.
Tell us about your property and plans. We’ll arrange a complimentary, no-obligation consultation.
Start your project →Or email info@semgroup.uk