House Extension

Expand Your House Living Space With Any Fuss or Any Stress
Add Up to £100K Value Without Draining Family Budget

House & Kitchen Extension Specialists in South-West London


Let's Discover the Main Reasons of Building a House Extension


Extra living space

Your family getting bigger?
Need space for your home office?
We’ll help adding up to extra 700 sq ft of living space

Boost property value

Thinking ahead and extending your house
can add up to £ 100 000 to the property’ market
and rental value

No hassle to move

Avoid to move somewhere else in order to get an extra bedroom. Take advantage using hidden reserves of space in your house.

Why Hiring Us Can Save You a Lot of Time and Money?


Designated Project Manager

Each house extension project has its own manager. He is in charge of workers and materials supply and also to keep in touch with you to ensure fast delivery, high quality standards and your complete peace of mind

calendar (2)

Quick Project Completion - 6 Weeks

We are focused on one project at a time. Our highly skilled specialists will work longer hours including weekends to ensure we meet the deadlines.
Book in advance! Start today, apply for a free quote


Save 1000's with our expert's advice

During our visit and free consultation you’ll get valuable insights and recommendations from a leading expert in extensions. Save thousands of pounds even at the earliest stage. Quote is free with no obligations.

What House Extension Costs Can You Expect?

Several factors are required to be aware of before giving any quote, but as a rule of thumb the costs can be anywhere from £150 to £220 per square feet.

While single storey is the most economical solution, double storey adds up to 50 % on the top.

An important factor when quoting is the organisation of building process and the cost of labour force or used materials.

Go-Gondolier LTD has the advantage to manage tradesmen and whole process in a way that cuts the costs while maintaining quality.

Moreover, many clients have used remortgage schemes to finance their project without spending family savings.


4 General Types of House Extension

When thinking to extend your house, you can choose from following types

Side-return Extension

  • Makes most out of house’ space and maximises value by simply using the  alleyway area at the side of property
  • Cost-effective and smaller scale nature of the job

Rear Extension

rear extension
  • Extends the kitchen where side-return is not possible because of lack of space on sides
  • Creates an open plan, large kitchen with direct access to the garden

Wrap-around Extension

  • Combines side-return with a rear extension for maximum space
  • Creates an L-shaped space that wraps around your home, with space on two sides

Double-storey Extension

  • Twice the space of other types of extension, work on two levels
  • More costly, but with a huge value potential

Have a Look at Our Recent Projects

We have in our portfolio double-storey, rear, and wrap house extensions located all over South-West London

Click on arrows or bullets to navigate inside projects

Rear extension

Double-storey extension

Wrap-around extension

Here is where our House Extensions projects are located in South London


Our Clients are Happy to Leave 100 % Positive Feedback

We care to maintain our flawless reputation on major tradesmen sites

4.3 x 6m single storey extension

Simon was extremely efficient in the way his team go about the work. He completed the extension in under 5 weeks (whereas others were quoting 3 months). The speed at which his team go is by no means to the detriment of the quality of the build. Undertook variations to the build during the course of works and didn't try to rip me off on costs for these. Would HIGHLY recommend to all!!!!
pwilby_54  - 25 Jun, 2017

Garage Conversion and 3m Single Storey Extension

Simon has done a great job - done effectively a full ground renovation in just under 10 weeks as agreed. We now have a new extension with new floor, kitchen, underfloor heating etc, and also the garage conversion has been completed giving us some smart new rooms and some breathing space!  We have since hired him again to do the cladding on the front of the house and would recommend him.
franciscook, 30 Sep, 2016

Kitchen Extension

Simon and his team carried out a full kitchen extension for me, including removing the rear structural wall, installing a new downstairs WC, new stud wall and full floor and kitchen installation. They were good value (not the cheapest, not the most expensive); did a good job; and worked very hard to complete the build in the shortest time-frame possible (6 weeks all in, including kitchen fitting). Any changes were discussed before they went ahead and they brought some good ideas to the table too. I would be happy to recommend Simon and his team and happy to send through photos of the build as it progressed to anyone who is interested.
angie_b_21 - 18 Mar, 2016

2 Storey Extension

I hired Marius and his team to carry out my two storey extension, I can honestly say these are the best builders I have come across. From the minute I met him and he gave me my initial quote which was very reasonable I knew I would hire him. From the start to finish I was totally at ease. I never had any delays, they showed up when they said they would and on time everytime. Their work rate is second to none aswell I had quotes saying it would take 12-14 weeks from other builders whereas Marius completed mine in 8 weeks even though I added a couple of other improvements while the job was ongoing. My friends in the trade were gobsmacked how quick they were. All in all I wouldn't have any doubts about employing them to carry out any building work for me in the future.
davidsjobs  - 8th Feb, 2016

Let Facts Speak by Themselves


years of experience


houses extended


m2 of extra space delivered

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