Once you have made the decision that a basement extension is the way forward for you and you have assessed the feasibility for such a project, your next step is to look for a company or contractor who can carry out the works. Here we have below a few tips and advice on what to look for in a company.

As a general rule, contact at least 3 companies to provide you with a preliminary quote for the works. This will ensure you can make a valid comparison between quotes. These days most of the companies offer a no obligation property survey and tender for your basement project.

Browse thru the reviews left on our website. You can rest assured the reviews are genuine and verified. Moreover, you can private message reviewing customers and ask them for more details or why not, to view the project the company has carried out.

During tendering, set out as clear as possible what you want to achieve. The initial tender would be based on this and you need to bear in mind that any changes in the design mean changes in the overall tender figure.

Ask for the contractors insurances. Companies or contractors who carry out basement construction, basement conversion in London or other areas in the UK, are required to have specialist insurances in place specially designed for underpinning works. A standard public liability insurance which does not included underpinning works will not cover you in case of an event. These insurance products will have to include Products Liability, Employers Liability and Contractors All Risk cover.

Ask to view both completed as well as on going projects in your area. The company should be able to arrange for you to view previously completed projects.

Many local councils are now imposing that a contractor carrying works in their district to be registered with the Considerate Constructors Scheme. You can ask proof of the companies certificate if this is the case.


If you are looking for a London Basement Company or a basement specialist in other areas of the UK, you can search search here for best rated companies by their customers.