Extensions, Garages & New Builds in London

Extensions and new buildsBuilt by one firm

More room at home, from foundations to finish

Side and rear extensions, new garages, back garages and new builds. Harvinder manages the job from the first visit to handover, so you have one person to talk to while the walls go up and every trade follows. Gas and electrical work is carried out by accredited specialists.

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Every trade: managed by one firm
In writing: start date and timescale agreed
Fixed: written quote after a free visit

Illustrative photo

ExtensionPlanned with you

A rough guide. Your written quote confirms your timescale.

What's included

What goes into your build

Your written quote lists every stage and every trade, so you know exactly what is included.

Written quoteExtensions and new builds

Itemised

01Architect, provided by usIncluded
02Building regulations and council planning supportIncluded
03Foundations and groundworkIncluded
04Brick and block wallsIncluded
05Floors and roof structureIncluded
06RoofingIncluded
07Plastering and skimmingIncluded
08Flooring and tilingIncluded
09Painting and decoratingIncluded
10Plumbing and heatingGas Safe engineer
11Electrics and lightingAccredited electrician
12InsulationInsulation
13Underfloor heatingHeating

TimescaleAgreed in your written quote

Illustrative photo of a two-storey extension in blockwork with scaffold up — Illustrative photo

Illustrative photo of steel beams and brick walls inside an extension being built — Illustrative photo

What we build

Extensions, garages and new builds

Tell us what you have in mind and we will visit, look at the space and give you a fixed written quote. We provide an architect and work with you so the build meets building regulations and council planning requirements.

Illustrative photo of a house with a side extension being built in blockwork — Illustrative photo

01

Side extensions

Making use of the space beside your house, for a wider kitchen, a utility room or an extra room. We tie the new walls and roof into the existing house and make good inside.

New walls and roof tied into the house
Every trade managed by one firm
Start date and timescale agreed in writing

Ask about side extensions

Illustrative photo of a two-storey rear extension with new doors — Illustrative photo

02

Rear extensions

More room at the back of the house, on one storey or two, for a bigger kitchen, a living space or a bedroom above. We build from the foundations to the finished room.

Single or two storey
Foundations through to decorating
One point of contact from start to finish

Ask about rear extensions

Illustrative photo of a new brick garage — Illustrative photo

03

New garage builds

A new garage built beside your home, for the car, storage or both. We take it from the foundations through the walls and roof to the finished building.

Foundations, walls and roof
Electrics by an accredited electrician
Fixed written quote after a free visit

Ask about new garage builds

Illustrative photo of a garage at the back of a garden — Illustrative photo

04

Back garage builds

A garage built at the back of your garden or plot. We plan how materials get to the back of the site and keep the rest of your garden protected while we work.

Planned around access to the back of the plot
Brick and block built
Tidied up at the end of every day

Ask about back garage builds

Illustrative image of a new build brick house — Illustrative photo

05

New build & design

New homes built from the ground up. We provide an architect and work out the design with you first, so the build matches how you want to live in it.

Architect provided, design worked out with you
Every trade managed by one firm
Start date and timescale agreed in writing

Ask about new build and design

Reviews

What our customers say

Every review was left on Checkatrade or Rated People, where only real customers can post.

9.8/10

Excellent

Read all reviews on Checkatrade

10/10

"No job is too big or too small ... from general maintenance through to full kitchen refits, flooring, roofing, electrics and plumbing. The quality of work is consistently high, communication is clear, and everything is well managed."

Verified customer, GreenfordSeveral jobs over many years · February 2026

9/10

"Harv is a fantastic human, very kind and considerate and accommodating to all the needs of the clients."

Verified customer, EghamBathroom with underfloor heating · April 2020

Questions

Extension and new build questions, answered

Something else on your mind? Ask Harvinder directly, 8am to 8pm, 7 days a week. +44 7714 067076

Q1What kinds of extension do you build?

Side and rear extensions, new garages, back garages and new builds, as well as complete house renovations.

Q2Do you handle planning permission and building regulations?

We help with both. We provide an architect and work with you so the build meets building regulations and council planning requirements.

Q3How long does an extension take?

It depends on the size of the build and the site. We agree your start date and timescale with you in writing before we begin.

Q4Who does the gas and electrical work?

Gas work is done by Gas Safe registered engineers and electrical work by accredited electricians.

Areas we cover

We cover Buckinghamshire, Berkshire, North West and South West London, Surrey, Hampshire and Central London.

Gerrards CrossMaidenheadReadingHarrowKingstonEgham

See all areas

Get a free quote

Tell us about the job

A photo helps us give you a quicker answer. For smaller jobs we can often give you a price straight away.

Free visit and a fixed written quote, with a start date and an expected timescale
You speak to Harvinder, not a call centre
Just your postcode. No street address needed to quote

Prefer to talk? Call or WhatsApp, 8am to 8pm, 7 days a week +44 7714 067076

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Local and trusted

Extensions and new builds across London and the Home Counties

We work across London and the Home Counties from our base in Southall, West London. Pick your area to see local jobs, reviews and the towns we cover.

Where to?

Extensions & New Builds in London