Complete House extensions, managed From Start to finish
A successful extension needs more than individual trades working separately. NeoFix coordinates the full build, from groundwork and structural work through first fix, finishing and final handover, keeping the programme organised and the quality consistent throughout.
What's Included in our House Extension Service
GROUNDWORKS & FOUNDATIONS
Excavation, foundations and preparation for the new structure.
STRUCTURAL WORK & STEELWORK
Structural openings, RSJs, beams and alterations carried out to the required design.
BRICKWORK & ROOFING
External walls, insulation, roof construction and weatherproofing.
WINDOWS, DOORS & GLAZING
Installation of external doors, windows, rooflights and glazing systems.
PLUMBING & ELECTRICAL
First and second fix services coordinated as part of the extension works.
INTERNAL FINISHING
Plastering, flooring, joinery, decoration and final finishing ready for handover.
Why Choose Neofix for Your House extension
ONE TEAM FROM START TO FINISH
One coordinated team manages the project through every stage.
EXPERIENCED PROJECT MANAGEMENT
We organise trades, sequencing and site progress throughout the build.
STRUCTURAL WORK COORDINATED
Steelwork, openings and structural alterations are integrated into the wider project.
QUALITY FINISHING
We carry the extension through to the final internal finishes and handover.
House Extension Across London
NeoFix delivers rear, side and wraparound house extensions across London, with a strong focus on North, North-West and West London. We also take on selected projects in Central and South-West London.
Every project starts with a site visit and a clear discussion about the property, drawings, budget and programme. From there, we coordinate the build from groundwork and structural work through to the final internal finishes.
Frequently Asked Questions
How long does a house extension take?
Most house extensions take around 10–16 weeks, depending on the size, design, structural work and site conditions.
Do you manage the whole extension project?
Yes. We coordinate the main building works from groundwork and structure through roofing, first fix, finishing and final handover.
Can you build rear, side and wraparound extensions?
Yes. We carry out rear, side and wraparound extensions depending on the property, design and approvals in place.
Do you work from architect and structural engineer drawings?
Yes. We can build from approved architectural and structural drawings and coordinate the construction stages accordingly.
Can structural alterations be included as part of the extension?
Yes. Steelwork, wall removals, structural openings and layout changes can be included as part of the wider extension project.
Planning a House Extension?
Tell us about your project and we’ll discuss the scope, timing and next steps.