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December 12th, 2025
Pool Water Testing
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Our Accreditations
Water Testing for Swimming Pools, Spas & Hot Tubs
Acorn Environment Services is a leading water and environmental engineering specialist offering a range of laboratory based microbiological analysis and swimming pool water testing solutions (including tests for spas, hot tubs and hydrotherapy pools) to businesses, local authorities, healthcare organisations, schools, universities and private individuals throughout the UK and Ireland.
Our specialist laboratory procedures include tests for a range of common pathogens found in pool waters including E. coli, Pseudomonas aeruginosa, Total coliforms, TVC/Aerobic colony counts, Legionella bacteria and other less common organisms that can contaminate pools.
If you’re one of the many UK businesses, councils, hospitals, schools, universities or private households who own or operate a pool, hot tub or spa, then you’ll already know that maintaining the quality of the water in your pool is something which can’t be ignored.
Why test swimming pool water?
Unlike other water systems found in homes and commercial premises where the water is flushed or drained away after each use, swimming pools, hot tubs and spas could be considered as a re-circulating water system where the water is retained and re-used many times over.
If you’re not testing the chemical and microbial water quality regularly, taking steps to maintain balance and keep it clean, issues such as pH and water clarity can change, and more worryingly bacteria can start to grow rapidly.
What bacteria can contaminate a pool, spa or hot tub?
Bacteria such as E. coli, Pseudomonas aeruginosa and Legionella thrive in warm, poorly or untreated water and have the potential to make people using the pool or spa very ill.
Don’t assume that water which appears crystal clear is clean and safe to use – the types of bacteria which can grow in water are invisible to the naked eye.
All water samples collected are processed by independent UKAS accredited laboratory facilities within 6 hours of collection.
Certificates of water sample analysis will be sent to the client following the receipt of results from the laboratory.
Contact Acorn today to discuss a water management programme for your property.
Why choose us
Decades of Experience
Our qualified Engineers have over 25 years of experience in the water hygiene industry, so you can count on us to reduce risk and keep your water safe.
Member of the Legionella Control Association (LCA)
We fully registered with the LCA, working inline with the LCA Service Standards and the LCA Code of Conduct.
Aftercare & Prevention
Once we have carried out our Legionella water testing services, we will leave you with helpful tips on how to make sure your water stays safe.
North West & Yorkshire Coverage
We provide our Legionella testing services to clients in Greater Manchester, Yorkshire and the wider North West area. If needed, we can provide specialist Legionella testing UK-wide.
Our services
Pest Control & Specialist Cleaning
Pests
Our pest control services deal with every aspect of pest infestation removal. We’ll provide an initial report, remove them, and then advise on how you can keep them from coming back in the future. For pest removal in your home or commercial property, no matter the size or nature of the infestation, trust Acorn Environment Services Ltd.
Water Hygiene
We offer a wide range of water hygiene services, including Legionella risk assessment, water sampling, and the cleaning & disinfection of water tanks. We carry out in-depth audits and follow strict health and safety guidelines designed to keep your water supply safe and hygienic. We also offer bespoke packages for our clients when needed.
Fully Accredited
We are proudly accredited by leading industry bodies including CHAS, Constructionline, SafeContractor, and the Legionella Control Association. These certifications demonstrate our commitment to safety, compliance, and delivering the highest standards in environmental and pest control services.
Speak to a specialist today
Whatever hygiene improvement requirements you may have – from pest removal to specialist cleaning – we want to help. Speak to one of our specialists today to take the first steps towards a cleaner future.
What our clients say
G
"Absolutely brilliant service from start to finish from George! Everything was handled professionally and efficiently. You can tell he genuinely cares about what he does and about the customers. I wouldn’t hesitate to recommend to anyone – top quality all round."
Georgia Hayes
S
"George was absolutely fantastic! He was professional, knowledgeable, and very thorough with his work. He took the time to explain everything clearly and answered all of my questions with patience. You can tell he really cares about doing the job right and making sure his customers feel comfortable and informed."
Scott Rudge
N
"I couldn't recommend Acorn highly enough, I've used them for over 3 years on my portfolio. Nothing is to big or to small, reporting is excellent and I've had operatives onsite in less than an hour when required. Acorn are my go to for pest control, jetwashing, tree services and biological clean up. They really go the extra mile whenever needed!"
Nathan Markey
T
"Absolutely fantastic firm to work with. Pulled me out of some serious problems at the drop of an hat many times. Easy to work with, and competitive prices. Always do what it says on the tin."
Terry Peers
H
"We’ve been using this company for water hygiene tests and couldn’t be happier with the service. The team is always punctual, professional, and very thorough in their checks. Reports are clear, detailed, and provided promptly, which gives us real peace of mind that we’re fully compliant."
Holly Turner
K
"Amazing business, offers multiple services that we have used numerous times across the whole chain of our business. Professional advice and people that really care and do the job to a very high standard at costs way lower than other contractors that we had quotes from. Quality, effective service every time… "
Keith France
UK laws dealing with water quality testing in pools, spas and hot tubs.
HSG282 gives advice on effective ways to safely manage and control spa-pool systems through:
- design, commissioning, operation and maintenance;
- testing and monitoring spa-pool water quality;
- quality and frequency of inspections.
UK health and safety laws dealing with swimming pool and spa water quality, testing and treatment really only come into play if you’re running a business such as a leisure centre, gym or hotel, or the pool is in a holiday property which is let to paying guests.
Owners and operators of pools and spas need to ensure sure that the water quality and treatment programmes are effective and meet current standards.
Although the law might not apply to domestic pools and spas, they provide excellent guidelines and standards which it makes sense to read, understand and comply with.
For more information both the Health and Safety Executive and the Pool Water Treatment Advisory Group (PWTAG) provide excellent guidance to help pool operators comply with health and safety law.
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