free css templates

As Featured in

logos of sites and shows we been featured in

Basement Conversion London

Here at Abtech Basements we offer our expert services in the construction and waterproofing of new or existing basements. With over 45 years in industry, we are a well-known basement conversion company in London and Oxford. All of our staff are highly skilled and fully trained so you can have peace of mind that your property is in safe hands. 
Read More about Abtech Basements

London Basement conversions - Abtech

London & Oxford
Basement Conversions 

Specialising in basement structures and conversions;
of new build and existing basements and cellars.

Create extra living space in your home, whether it be a new build or retrofit project.

By John Smith posted July 20, 2016

Working throughout the South of England, including North London, South London and Oxford, plus many projects in West London, Fulham, Chiswick and Chelsea.

Reputable, experienced, professional and trustworthy, Abtech offers an expert service in all areas of basement construction.

Retrofit Basement

Retro Fit basements or cellar conversions 

Our wealth of experience in underpinning, temporary works and excavation within an existing property, allows us to provide a comprehensive package for your planned basement.

New Build Basement

New level for design stage of a new build

Providing basements structures for new housing including piling, excavation, drainage, pumping systems and the reinforced concrete structure ready for your house to be built over.

Structural Waterproofing

Basement waterproofing/cellar conversion

Our waterproofing department specialise in providing effective solutions for modern day expectations of a dry environment using modern products and techniques.

Geobond Logo


Our sister company,
constructing our piled solutions

Considerate Constructors Logo

Considerate Constructors Scheme 

Proud to be members and award winners

Delata logo


Certified Delta waterproofing installed

CGS logo


Providing insurance backed
guarantees for peace of mind

CHAS logo


Our trusted advisor on
health & safety compliance

Abtech News & Blog

Abtech Basement we have moved logo

ABTECH (UK) Ltd have moved to new premises!

We continue to be based in Farnborough, Hampshire but in more spacious and modern offices to compliment the company’s continuing success.

Basement Products and Technology

Products and Technology

Here at Abtech Basement Systems we use a number of top end products as standard. Find out more about products we use.

8 Costs to Consider when Constructing or Converting a Basement

8 Costs to Consider when Constructing or Converting a Basement

Many costs need to be considered when you looking into basement construction or a conversion. We have listed 8 items you need to consider.

geplus logo

Abtech awards ceremony 2017  finalist - Technical Innovation

Here at Abtech we are very proud to be invited this year to the Ground Engineering Awards 2017. We were short listed as finalists in the Technical Innovations award.

Independent logo

Make do and extend: It's time to build up, down or out

David Hilton Director at Abtech Basement System is quoted:

"Basement extensions are now widespread and there is no basement that can't be dug out if you can afford to pay for it."

In the current climate there's no doubt that it's easier to extend than to move and if you've got some unused space, it's worthwhile thinking about building into it to create that extra room. Adding another room is usually the most reliable way to add value to a property so if you can combine the selling power of a fabulous new kitchen in a new, and/or larger, space then you should be onto a winner....

metro news

It’s all about the basement

"Caroline’s greatest challenge she said, was some less than accurate estimates of pipework that lay in the basement — though Abtech was able to find solutions. Her delight in her new home, however, is palpable. ‘It’s such a fabulous space to hold parties,’ she confesses, with a smile. Two of her daughters also now regularly come to stay — she suspects because the property is so appealing."

Grand Designs logo - Basement conversion London

The London Mews House

Ian Hogarth and Claire Farrow took the bold step of starting to build their home in Kensington, West London, well before getting planning permission. It was a massive gamble, but one that paid off, leaving them with their own pocket of paradise in the heart of the city

DailyMail online logo

Parents build £1m home complete with nightclub

Claire Farrow and Ian Hogarth from West Kensington invested more than £1m to create their 'dream home' complete with a state-of-the-art discotheque. 

Abtech were involved in the basement conversion of this project.

DailyMail online logo

It’s all about the basement

CAROLINE WYLD has never shied away from a challenge. The Scottish born mother of three, a former cook and ‘hobby’ property developer, has converted three barns, run a bed and breakfast, and even recently qualified as a Nordic walking instructor.

So, when she bought a 500sq ft, one-bedroom flat with a small cellar in a leafy road in London’s Wimbledon Park in 2014, she was undeterred by the idea of making big changes....

Abtech were involved in the basement conversion of this project.