Specialist Basement Construction

Our highly skilled engineering company offers a range of expert services for residential and commercial construction projects. As specialist piling and foundations contractors in London and the South West, we construct basements for homes and other buildings.

No matter the type of basement you want or the ground conditions you have, we will work with you to get the best construction method with the least disruption possible.

Our expertise in foundations, underpinning and groundworks give us the advanced engineering and construction methods required to create a strong, stable, useful basement for you.

Increase the size and value of your property, with specialised basement construction.

Piling Contractos

Why Choose Dart & Co for your Basement Construction??

We are experienced piling contracting specialists so can give you comprehensive support throughout your project. Our engineering design services can provide complete plans for your project, while our in-house estimators can create a detailed budget.

We complete design and calculations quickly – usually within 4 days – so work can start quickly. We also offer free advice, competitive prices, price matching and tips on saving money. Plus, no deposit is required.

We operate to the highest standards – all of our projects come with a 10-year insurance guarantee and a 10-year warranty.


Free consultancy

Free Project Assessment


Budget friendly

Competitive pricing & price matching


Get a quote

Fast & Clear Quotations

Built on Trust

As skilled contractors, we hold the expertise and experience to work with you every step of the way. We offer free advice and cost-saving tips regardless of project size, we offer competitive pricing and price matching, and you will not be required to pay a deposit. We are a self-sufficient, hard-working, independent piling company that aim to provide cost-effective services to a number of UK locations.

Valued Accreditations

We are supported by a range of companies including Checkatrade and FSB and are proud to be on the list of trusted piling foundation contractors. We’ve also worked with some of the biggest building industry names, and as partners or independent contractors, we are recognised as industry specialists.

CHAS logo
construction index
British Drilling Association





Mon to Sat - 9am to 6pm

Contact our Basement Experts Today

For a free, no-obligation quote for basement construction, piling and foundations contact us using the form, or by giving us a call. We offer competitive quotes to all our clients, whatever the size of the work.

If you’ve received a quote from another company within the last 28 days, we can usually beat it.

Call Us Today 0800 206 1563