Gulf Builder team completing extension work on a London home
01 / Extensions

More room. Same home.

Extensions built around the way you live.

From a side return or rear extension to a larger multi-storey project, Gulf Builder manages the structure, services and finish as one coordinated build.

Plan your extension See the work
The brief

One accountable team, from survey to handover.

An extension only works when the new space feels like it has always belonged to the house. We plan the structure around the room, coordinate every trade to one schedule and keep the route from old to new clean and deliberate.

Our team can support the project from the first site survey through planning, construction, first-fix services, plastering and final decoration. You get one clear programme, one point of contact and an itemised quote.

01Single team
02Itemised quote
03Managed schedule
04Complete finish
Project journal / Leatherhead

A useful room, built from the structure out.

The Gulf Builder team reworked the existing rear structure, upgraded its fabric and services, then carried the project through to a clean interior finish.

FIG. 01 / COMPLETED INTERIOR
Completed interior space following Gulf Builder extension work
The finished interior was handed back as a clean, comfortable continuation of the existing home.
FIG. 02 / TIMBER STRUCTURE
Timber roof structure prepared during Gulf Builder extension project
The roof structure was opened, checked and rebuilt around the new insulated envelope.
FIG. 03 / BRICKWORK
Gulf Builder brickwork team constructing the new external wall
New brickwork was set out carefully to tie the altered structure back into the house.
FIG. 04 / INSULATION
Insulation installed between new timber studs by Gulf Builder
Insulation was fitted between the new timberwork to improve comfort and thermal performance.
FIG. 05 / FIRST FIX
First fix electrical and plastering work inside a Gulf Builder project
Electrical routes and wall finishes were coordinated before the final fit-out.
FIG. 06 / COMPLETED EXTENSION
Completed rear extension exterior with the Gulf Builder team carrying out final work
The completed extension ties new brickwork, windows and roof detailing back into the existing house.
What we build

The right extension for the house, not a standard box.

01

Rear extensions

Extra kitchen, dining or family space connected properly to the garden.

02

Side returns

Narrow unused space turned into width, light and a better ground-floor plan.

03

Wraparound builds

Side and rear additions coordinated as one structure and one interior.

04

Multi-storey work

Added space across more than one level, planned around the existing house.

How it runs

A clear build, in four stages.

  1. 01

    Survey and scope

    We inspect the property, understand how the room needs to work and prepare a clear scope.

  2. 02

    Plan and price

    Structure, services, finishes and programme are brought into one itemised quote.

  3. 03

    Build and coordinate

    Our trades work to one schedule, with the site kept controlled and progress communicated.

  4. 04

    Finish and hand over

    Final details are checked, the space is cleaned and the completed work is handed back properly.

Start with the space

Tell us what your home needs to become.

We will arrange a site survey and come back with a clear, itemised route forward.

Get a free quote