Facade Cleaning London - Limestone Cleaning - Restoring Portland Stone at Roman House

With over twenty years of commercial and domestic cleaning experience, Softwashing UK is at the forefront of the softwashing industry.

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Softwashing UK were contracted to clean and restore the prestigious Roman House in London. The limestone facade had become contaminated with organic growth – both algae – and also black mould – most likely the varieties Aspergillus Niger and Gloecapsa Magma.

Roman House is situated in the City of London in the famous EC2 postcode, next to London Wall. While it once housed offices it is now a refurbished 90 apartment and penthouse complex that overlooks the historic St Alphage Gardens and also St Giles Church. It is a very desirable area due to its past, and its reputation, in the heart of the financial district. The building was restored to reflect the characteristic modernism of the area- that was itself redeveloped post World War 2. The nearby Barbican centre is famous for its Brutalist design.

The Roman House facade is of Portland Stone. This limestone is a fabulous building material giving a smooth and pale finish. The stone dates back to the Late Jurassic period and is quarried uniquely on the Isle of Portland in Dorset. It is used not only on Roman House, itself a listed building, but also Buckingham Palace and St Paul’s Cathedral. It has been exported globally – and is also used in the UN headquarters in New york.

Working on such a high value listed property requires the utmost precision. The correct methods need to be deployed to satisfy heritage criteria. It was also important to work safely and communicate in advance to protect the public and prevent interference.

Softwashing UK used the Doff Steam System to restore the Portland Stone. This system is recommended by Historic England, and uses steam at a tightly controlled temperature to deliver exceptional restorative results.

As you can see from the video case study – the results were impressive- and we were delighted to play our small part in protecting our shared architectural legacy.

To discuss cleaning and restoring Portland Stone or limestone contact us today.

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From small domestic render projects to large commercial abseiling projects, check out our case studies.

We have worked throughout the UK and Ireland on a diverse range of different project types and sizes. Please browse through some of the most recent examples of domestic and commercial jobs we have undertaken.

Domestic Commercial Case Studies

If your home is beginning to look depleted or discoloured then we can help. We work on all kinds of properties large and small.

Typically a homeowner will notice black, red, or green, organic growth staining and contaminating their property. This is where we step in. Traffic pollution or even graffiti can also be a factor. If you have a home or property in need of cleaning or restoration then learn more on our Domestic Services Page, or Contact us today for a no obligation quote.

If you are a property or facilities manager, architect, quantity surveyor, council, housing association, estate agent or landlord please view our Commercial Services page for more info.

Commercial Case Studies

Softwashing UK work with the largest and most innovative companies in the property sector. So whether you own or manage apartment blocks, offices, warehouses, or commercial properties of all types – we have you covered.

We often run large commercial projects under CDM regulations or as principal contractor, or we are more than happy to be a subcontractor on larger building or restoration projects. We are licensed for many kinds of heavy plant and machinery and are able to safely work at height. We are also Streetworks Qualified. If you have tenants in situ, or operate a busy public site, we can manage end to end communications with tenants and customers, to ensure no public interference that could jeopardise costs or health and safety.