"We pride ourselves in great customer service, underpinned by a wealth of specialist knowledge in basement and cellar conversions."

Welcome to Octopus Building Services. We specialise in cellar & basement conversions in Leeds, Harrogate and the rest of Yorkshire.

We really are number one for basement conversions. Leeds based company Octopus Building Services have been trading for over 7 years and we specialise in the creation of great basement and cellar spaces by using the latest technology and products on the market.

We pride ourselves in great customer service, underpinned by a wealth of specialist knowledge in cellar and basement conversions. Our expertise comes from undertaking numerous conversions across residential and commercial buildings, ranging from 10m2 of space up to 200m2 of space.

The same principles of sound construction and attention to detail is behind every one of our jobs and we're proud to be able to offer numerous customer recommendations - In fact 70% of our work comes from referrals from other customers!

What could your basement space be used for?

Does your building have the potential for a great basement conversion?

Basement conversions add value to properties and offer a great solution where more space is needed.

With modern technology and products the days of poor quality cellar conversions are over. We're so confident in our conversions that we offer a 10 year guarantee on every project.

Conversion costs vary by project but cellar conversions are often cheaper per m2 than loft conversions or extensions. They also maintain the original appearance of your house, have less planning permission implications and don't impinge on outside space.

We offer a free no obligation consultation to advise you on what is possible on your project. However here's some important considerations: