Name: Crown Preservation
Address: Crown Preservation, 78 York St, London, W1H 1DP, UK
Telephone: 0207 412 8267
Rating: 4.6

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Our services

London's No.1 ATP Testing After Flooding Specialists

Crown Preservation carries out ATP surface testing following flooding, sewage leaks and water damage. It checks for biological residues, such as bacteria, to assess the effectiveness of cleaning.

A surface may look clean once floodwater has been removed, but its appearance alone cannot confirm that biological residues have been adequately cleaned away.

ATP testing for cleanliness provides an additional, measurable check to support the restoration process.

ATP Meaning: What Is Adenosine Triphosphate?

Adenosine triphosphate (ATP) is a substance found in living cells, including bacteria and other biological material.

The presence of ATP suggests that biological residues remain after cleaning.

These can feed harmful bacteria, helping them to multiply and form a protective shield (biofilm) that lets pathogens hide from sanitisers or disinfectants.

What Is ATP Testing?

Using specialist swabs and an electronic ATP meter, we test selected surfaces.

The results provide a very quick indication of residual organic contamination to identify areas that need further cleaning.

ATP testing is a cleaning verification tool. It does not identify individual bacteria, detect viruses or provide a bacterial count.

Our ATP Testing Services In London

As specialists in damp proofing London properties, our ATP testing service can support investigations and cleaning checks following:

Flooding affecting homes, basements and commercial premises
Sewage backflow and foul-water leaks
Escapes of water where biological contamination is suspected
Cleaning work following a flood or contamination incident

We assess the affected area and select suitable, accessible surfaces for sampling. Specialist swabs collect material from each test location, which we then analyse using an ATP meter.

Where results indicate that further cleaning is needed, those areas can be cleaned again and retested. Where specific bacteria, sewage contamination or other health concerns require further investigation, targeted laboratory testing may be necessary.

Call now for a free no-obligation chat and we’ll see if we can help you.

Reviews

What our clients say

Meenesh Mistry

Highly recommend Crown for Damp proofing. Declan is very knowledgable, and professional. The team went over and beyond to get our job done on time and I would use him again.

Charlotte Renwick

Declan and his team were absolutely fantastic from start to finish and I wouldn’t hesitate to recommend them. They managed to fit the project in to coincide with my holiday and the team really went above and beyond to make sure I was 100% satisfied with the end result. Declan was incredibly helpful and a pleasure to work with. A huge thank you from me.

Gayla

Job well done with limited fuss!

Richard Brookes

Declan is very knowledgeable and was happy to spend time giving advice on two occasions even when he knew it would not lead to them getting work. Crown will definitely be my first call if I find future damp related problems.

Nic Jones

We used Crown for the whole of our basement and cellar. Declan is an expert in his field and knows exactly what to do for all damp issues. He gave great advice on the tanking and damp proofing requirements and helped to save us money where possible.
The work was professional and efficient and the team do a great job of telling you what they are doing at every stage of the process and communicating well.
I couldn’t recommend them highly enough for their work and help.

Matthew Smith

Declan and his team have just recently completed works at our property and we are delighted with the result. The approach was swift, decisive and professional. From day 1 we felt in safe hands and that the team were dedicated to supporting us and ensuring the experience was as unobtrusive as possible. Our property was protected during the process and the team cleaned up everything after. Thanks Declan and team for the best possible experience!

Jodi Bartle

These guys are very good and have worked for me on and off on different projects for fifteen years. We have never had any call backs and the job has always been completed on time.

lewis mcneice

We had a serious damp-mould issue in our flat. We called 1 company in who suggested it was a leaking pipe. We paid a plumber to inspect and found no pipes at our expense. The other company then suggested cutting into the wall and using a camera to look for the source of moisture. At this point we became concerned that we were being taken for a ride. We looked for another opinion and found Crown Preservation. We described the problem over the phone and they confirmed it was likely a condensation problem. They sent a surveyor ( Declan) out who took thermal reading of the walls and measured the moisture in the atmosphere and confirmed it was condensation.
They even told us at what temperature the condensation formed.
I would definitely recommend Crown Preservation. They were knowable efficient and had had all the equipment for the survey (something the other company did not) and they suggested the correct course of action to take using our own builder.