London's most trusted and recommended drainage company

We are a full service, certified and licensed basement waterproofing and foundation repair company. We adhere to three strong principles: Respect, Integrity, and Responsibility.


Don't Fix it Yourself!

Leave it to the professionals. Homeowners, builders and businesses have relied on Ashworth Drainage to accurately identify and solve their foundation and water problems for more than three decades. We can help you too.

Consider the Advantages of Using Our Guaranteed Waterproofing Services

advisor face

We will visit your home, business or commercial property and explain exactly what scope of work is needed in simple terms you will understand. We will give you a written estimate including a schedule to start and complete the repairs. This service is offered free of charge or obligation.

30 years experience

Our professionalism is second to none. We treat your property as if it were our own.

quality guarantee

We offer a 20 year, transferrable warranty on everything we do.

Water damage is NEVER a temporary problem. Small issues inevitably lead to bigger problems when they are left unresolved. We will honestly assess your issue, give you a free consultation and offer viable options for any unexpected costs. You can then make an informed decision concerning your most valuable investment - YOUR HOME OR BUSINESS.

We are London's exterior waterproofing experts