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Property Extensions

Single and double storey rear, side return and wrap around extensions built from footings through to final finish.

Fully insured 60-minute response Guaranteed fix
Rear extension under construction on a London home

Service Overview

Rapid Professional
Drainage Response

We build single and double storey rear extensions, side return infills, wrap arounds and garage conversions across London, managing the project from breaking ground to the last coat of paint. That covers foundations and drainage, structural steelwork, brick and blockwork, roofing, glazing, first and second fix, plastering and decoration, with Building Control inspections coordinated at every stage. Side return and rear extensions very often sit directly over an existing drain run, and this is exactly where most builders stop and call in a drainage specialist. We do that work ourselves, so the build over agreement and any diversion are handled inside the same programme rather than adding weeks to it.

When You Need This Service

A growing family needing more space without the cost of moving
A dark narrow galley kitchen that a side return would transform
Approved drawings sitting unused because no builder has been appointed
A drain run crossing the footprint of the proposed extension
A garage or outbuilding that could become usable living space

Step-By-Step Fulfillment

01

Survey & Consents

We review your drawings, check structural and drainage implications, and confirm planning, Building Control and party wall requirements.

02

Structure

Foundations, drainage, brickwork, steels and roof are built, with Building Control signing off each stage.

03

Fit Out

Glazing, first and second fix, plastering and decoration complete the build, finishing with your completion certificate.

Technical Clarifications

Many single storey rear extensions fall under permitted development, but the limits are tighter in conservation areas and do not apply to flats and maisonettes. We will tell you honestly at survey whether you need a full application or a lawful development certificate.
It is either diverted or built over under agreement with the water authority. This is the point where most extension projects stall waiting on a drainage contractor. Drainage is our original trade, so we handle it as part of the same job.
Typically twelve to sixteen weeks on site for a standard single storey rear extension, depending on size, access and specification. You receive a written programme with staged milestones before we start.
Priority Assessment
Project Status

FREE
QUOTE

Professional diagnostic inspection provided at zero cost. Call-out fees waived for all London zones.

Free Call Out
1-Year Warranty
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Why choose us

  • No call-out charge and no obligation
  • Around the clock, 365 days a year
  • Fully insured with public liability cover
  • Workmanship backed by a 12-month guarantee
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