Central Asphalt Ltd
Mastic asphalt tanking specialists since 1989

Basement Tanking & Waterproofing in Liverpool

Basement tanking Liverpool property owners can rely on: seamless mastic asphalt tanking for cellars, basements, lift pits and below-ground structures across Liverpool, the Wirral and the North West, laid in two to three hot coats to around 20mm. Keeps water out for good.
Get a Free Tanking QuoteCall Martin on 07860 432 729
Basement tanking Liverpool — asphalt waterproofing being applied to a wall

Basement Tanking Liverpool: What We Waterproof

Everything we tank and waterproof across Liverpool and Merseyside

Cellar Tanking

Tanking the cellars of Liverpool's Victorian terraces and villas so they become dry, usable storage or living space.

Basement Waterproofing

Full basement tanking for new builds, conversions and commercial buildings — floors, walls and junctions sealed as one continuous membrane.

Lift Pits & Lift Shafts

Asphalt tanking to lift pits and shafts, keeping groundwater out of the areas that most need to stay dry.

Podium Decks & Car Park Decks

Waterproofing to structural decks above basements and undercrofts, protecting the structure beneath.

Tanks & Retaining Structures

Mastic asphalt can also keep liquids in — lining tanks, bunds and retaining structures where water must be held rather than excluded.

Flat Roof & Balcony Waterproofing

The same seamless waterproofing applied to flat roofs, balconies and walkways. See our roofing services.

Why Mastic Asphalt Is the Proven Way to Tank a Basement

Mastic asphalt tanking is the traditional, specification-grade way to waterproof below-ground structures, and it is still used on major buildings for good reason. It is applied hot in multiple coats and sets as it cools into one seamless, joint-free barrier that is bonded to the structure. There are no laps, seams or fixings for water to find its way through.

Unlike cement-based tanking slurries, asphalt stays flexible enough to cope with minor movement, and unlike cavity drain membranes it needs no pumps or ongoing maintenance. It has a service life measured in decades.

We tank basements and cellars in homes, flats, shops and commercial buildings across Liverpool, the Wirral, Sefton, Knowsley, St Helens and the wider North West, working for homeowners, builders, architects and main contractors.

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Central Asphalt team — basement tanking and waterproofing contractors in Liverpool

Mastic Asphalt Tanking Compared

How the main basement waterproofing methods stack up

FeatureMastic AsphaltCement Tanking SlurryCavity Drain Membrane
Seamless, joint-free barrier
Bonded to the structure
Tolerates minor movement
No pumps or ongoing maintenance
Can also retain liquids (tanks, bunds)
Repairable by re-melting

Basement Tanking Questions

Tanking is the process of applying a continuous waterproof barrier to the floor and walls of a basement or cellar so that groundwater cannot get in. We do this with hot-applied mastic asphalt, which sets into a seamless membrane bonded to the structure.
Yes. Many of our tanking jobs are cellars in Victorian and Edwardian terraces and villas across Liverpool and the Wirral, turning damp cellars into dry, usable space.
Damp proofing deals with moisture rising or penetrating through walls above ground. Tanking is for below-ground spaces where water is under pressure from the surrounding earth, so the barrier has to be continuous and strong enough to hold it back.
We quote each basement individually after a site visit, based on the floor and wall area, the condition of the structure, the number of details such as pipes, steps and sumps, and access. Quotes are free and no-obligation.
Liverpool, the Wirral, Sefton, Knowsley, St Helens and the rest of Merseyside, plus Lancashire, Cheshire and North Wales.
Yes. Our tanking installations are covered by a workmanship guarantee, with the period set out on your written quote.

Need a Flat Roof or Asphalt Floor? Get a Free Quote Today

With over 30 years of experience across Liverpool and the North West, Central Asphalt Ltd delivers expert mastic asphalt roofing and flooring solutions for homes and businesses. Contact our friendly team for a no-obligation quote.
Request a Free QuoteCall Martin on 07860 432 729
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