Commercial Water Treatment Services

Peace Of Mind From Safe, Efficient & Compliant Water Systems

Protecting Heating, Cooling & Water Systems

Closed System Water Treatment

Chemical Dosing Water Treatment

Boiler & Heating Water Treatment

Your Water Needs Treatment. Fact.

Frequent plumbing issues?

Discoloured, unpleasant tasting water?

Can you see signs of scale or corrosion?

Noticing reduced efficiency of your systems?

You shouldn't be worrying about the health of your heating, cooling or water systems or about the quality of the water in your systems, our experienced commercial water treatment services experts are here to help

our comprehensive Water Treatment services

We have your facility’s water treatment covered. Proper treatment prevents scale, corrosion, and sludge that can damage equipment, reduce efficiency, and increase energy costs.

Closed System Water Treatment

Closed System Treatment

Chemical Dosing Water Treatment

Chemical Dosing Water Treatment

Water Compliance & Certification

Water Filtration & Purification Treatment

Water Purification & Filtration

Boiler Water Treatment

Boiler Water Treatment

Planned Water Treatment Programmes

Planned Water Treatment Programmes

"SMS have supported our School for the last 6 years. The team are always extremely helpful and come out promptly when needed. As a Bursar their support is invaluable & I highly recommend them."

Jenny Wilson, St Bernards Prep School, Slough

Commercial Water Treatment Services

Southern Maintenance Solutions have been providing commercial water treatment services for over 30 years. We cover the majority of the South of England with our commercial water treatment services in Newbury Reading & Slough in Berkshire, Swindon and across Wiltshire, all over Oxfordshire, Basingstoke, Winchester & Southampton as well as across Hampshire, our teams cover Bristol and the South West as well as Surrey and of course across London.

Our commercial water treatment services protect your heating, cooling, and closed water systems from scale, corrosion, and bacterial growth. By keeping your systems balanced and treated correctly, we help businesses, schools, healthcare sites, and industrial facilities run safely, efficiently, and in full compliance with regulations.

Safe, Efficient & Compliant Water Systems

Commercial water treatment services are different from water hygiene. While hygiene focuses on protecting people from risks like Legionella, water treatment is about protecting and optimising your building’s systems. Proper treatment prevents scale, corrosion, and sludge that can damage equipment, reduce efficiency, and increase energy costs.

What is Water Treatment in commercial buildings?

Water treatment is different from water hygiene. While hygiene focuses on protecting people from risks like Legionella, water treatment is about protecting and optimising your building’s systems. Proper treatment prevents scale, corrosion, and sludge that can damage equipment, reduce efficiency, and increase energy costs.

Key Benefits

Commercial water treatment services

Our Commercial Water Treatment Services

Closed System Water Treatment

Heating and chilled water circuits can quickly suffer from scale, corrosion, and sludge without correct treatment. We provide chemical dosing, filtration, and monitoring to extend system lifespan and maintain efficiency.

Cooling tower Water treatment

Cooling towers are high-risk areas for scale, bacteria, and Legionella if left untreated. Our tailored solutions include biocide dosing, scale inhibitors, and ongoing monitoring to ensure safe and compliant operation.

Boiler water treatment

preventing scale and corrosion for efficient, reliable boilers.

Chemical Dosing & Control Systems

We supply, install, and maintain automated dosing equipment to keep systems correctly balanced — reducing manual intervention and ensuring consistency.

Filtration & softening

From water softeners and reverse osmosis units to sand filtration, we design and maintain systems to improve water quality for commercial and industrial sites, improving water quality and reducing damage caused by hard water or debris.

Monitoring & maintenance

Routine water analysis, corrosion monitoring, and chemical balance checks ensure systems remain safe, efficient, and legally compliant.

Tailored treatment programmes

solutions designed around the needs of your site and equipment.

Explore Our Commercial Water Treatment Services

Water Treatment Compliance & Certificates

Water Compliance & Certificates

Commercial sites have strict legal duties to manage water quality & system safety. We carry out water sampling, testing & record-keeping in line with HSE guidance (including ACOP L8 & HTM 04-01 for healthcare), providing full certification & compliance reports to show your systems meet regulations.

Tailored Water Treatment maintenance programmes

Tailored Water Treatment maintenance programmes

Water treatment isn’t a one-off task — it requires ongoing care. Our planned maintenance schedules include routine inspections, water testing, and system adjustments to keep your equipment safe, efficient, and fully compliant.

Boiler water treatment

Boiler water treatment

Untreated boiler water can lead to scaling, corrosion, and costly breakdowns. Our treatment programmes protect your boilers, improve efficiency, and extend operational life while keeping energy costs under control.

Closed System Treatment

Closed System Treatment

Heating and chilled water circuits are prone to scale, corrosion, and sludge build-up, which reduce efficiency and damage equipment. Our closed system treatment programmes use specialist chemicals, inhibitors, and monitoring to keep systems balanced, efficient, and long-lasting.

Cooling tower water treatment

Cooling tower water treatment

Cooling towers present one of the highest risks for scale and bacterial growth if left untreated. We provide biocide dosing, corrosion protection, and continuous monitoring to keep cooling towers safe, efficient, and compliant with HSE regulations.

Chemical supply & dosing equipment

Chemical Supply & Dosing Equipment

Reliable water treatment requires the correct dosing of chemicals at all times. We supply, install, and maintain automated dosing pumps and control systems to ensure accuracy, reduce manual handling, and maintain consistent system protection.

Filtration solutions

Filtration solutions

Poor water quality can cause blockages, fouling, and equipment failures. We install and maintain side-stream filtration, magnetic filters, and separators to continuously remove debris and keep systems running smoothly.

Reverse osmosis & conditioning systems

Reverse osmosis & conditioning systems

Some applications require the highest purity of water. Our reverse osmosis and conditioning systems deliver clean, reliable water for specialist commercial and industrial uses.

Manual Water System Dosing

Manual Water System Dosing

In some situations, chemical dosing needs to be carried out manually rather than via automated systems. Our engineers safely apply the correct treatments during service visits, ensuring your systems remain balanced and protected without disruption.

Cleaning & Flushing Systems

Cleaning & Flushing Systems

Older or poorly maintained systems often suffer from scale, rust, or sludge that block pipes and reduce performance. We provide specialist cleaning and flushing services to restore water quality, improve circulation, and protect against future damage.

Water softeners

Water softeners

Hard water leads to scale deposits that damage equipment and waste energy. We design, install, and service water softeners for commercial sites, helping to prevent scale and extend the life of your systems.

Boiler, Heating Hot & Cold Water Systems

Hot & Cold Water Systems

We test, maintain, clean & service Boiler, Heating Hot & Cold Water Systems as well as installing and repairing them.

Corrosion monitoring & sampling

Corrosion monitoring & sampling

Regular water sampling and analysis allows early detection of corrosion or chemical imbalance. We provide detailed reporting and corrective actions to ensure your systems remain protected and compliant.

Energy efficiency optimisation

Energy efficiency optimisation

Dirty or untreated systems run less efficiently, costing more in energy and maintenance. By keeping systems balanced and treated, we help reduce operational costs and improve sustainability.

Legionella Disease Testing

Legionella Disease Testing

We provide legionella disease testing for the presence of Legionella bacteria, a crucial step in managing risks , especially in complex water systems.

System re-commissioning

System re-commissioning

Older or contaminated systems often require more than routine maintenance. Our re-commissioning service involves thorough cleaning, flushing, and rebalancing to restore performance and compliance.

Pre-commission cleaning & flushing

Pre-commission cleaning & flushing

New pipework and systems can contain debris, grease, and installation residues that, if left, cause long-term issues. We carry out pre-commission cleaning to BSRIA standards, ensuring systems are clean, efficient, and ready for use.

Risk Management
& Remedial Work

Water Testing Remedial Work

Sometimes issues are only discovered after damage has begun. We provide risk assessments, root cause analysis, and remedial works — from chemical cleaning to system repairs — to get your water systems back into safe, compliant, and efficient operation.

Can't find what you need?

Do you need our Water Hygiene Services?

Why Choose Us

Our commercial water treatment services are focussed on our customers, helping them with minimum disruption, maximum value and total satisfaction.

Local Friendly Experts

We have been your local experts for over 30 years with a reputation for our friendly, personable approach and care for all of our customers.

Responsive & Reliable

Need our help? You can rely on our large team of qualified engineers to respond to your needs as a matter of urgency for ultimate peace of mind.

Competitive Pricing

We pride ourselves on providing our excellent services at competitive, fair prices – delivering exceptional value for money on every job.

Complete Supplier

We make life easier for you and your business by providing a wide range of comprehensive HVAC, plumbing, Water & Drainage services.

Honest Help & Advice

We’re here for you. With 30 years of knowledge and experience, it’s our pleasure to assist our customers with any help & advice.

Service Maintenance Plans

(Planned Preventative Maintenance​)

Reactive Emergency Repairs

(Unplanned Breakdown Occurrences)

Installations and Projects

(From Design To Implementation)

Our clients trust us with their Water Treatment Services

We provide Commercial Water Treatment Services to the Following Sectors

Education

Health Care

Hospitality

Defence

Industrial

Retail

Commercial

Public Sector

FAQs

Commercial Water Treatment Services
Questions

Commercial water treatment is the process of managing heating, cooling, and closed water systems to prevent scale, corrosion, and bacterial growth. It ensures systems run safely, efficiently, and in compliance with regulations.

Water treatment is essential to ensure that the water used in your facility is clean, safe, and efficient. Poor water quality can damage equipment, cause health and safety concerns, and lead to increased operational costs. By treating your water, you improve efficiency, extend equipment lifespan, and maintain compliance with health and safety regulations.

Common systems include heating circuits, chilled water loops, cooling towers, and boilers. Any commercial or industrial site with these systems will benefit from regular water treatment.

Water hygiene focuses on protecting people from health risks (like Legionella). Water treatment focuses on protecting the system itself — preventing damage and inefficiency. Both are essential for compliance and safety.

Schools, hospitals, care homes, factories, offices, warehouses, and any business with heating, cooling, or closed water systems.

Legionella is a type of bacteria that thrives in water systems and can cause Legionnaires’ disease, a severe form of pneumonia. In the UK, businesses are legally required to carry out risk assessments to ensure the safety of their water systems. The bacteria can grow in poorly maintained or neglected water systems, such as those in cooling towers, hot and cold water systems, and air conditioning units, making it a significant health and safety concern.

Our Services Areas

Wiltshire

Our Swindon & Wiltshire team provides Commercial Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Avebury, Calne, Chippenham, Devizes, Faringdon, Marlborough, Melksham, Pewsey, Purton, South Cerney, South Marston, Swindon, Wanborough, , Westbury, Wootton Bassett and surrounding areas.

Hampshire

Our Hampshire team provides Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Aldershot, Alton, Amesbury, Andover, Basingstoke, Camberley, Eastleigh, Fleet, Hartley Wintney, Hook, Farnborough, Odiham, Salisbury, Southampton, Tadley, Winchester and surrounding areas.

Oxfordshire

Our Oxfordshire team provides Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Abingdon, Banbury, Benson, Brize Norton, Didcot, Eynsham, Faringdon, Grove, Harwell, Headington, Oxford, Princes Risborough, Radley, Thame, Wallingford, Wantage, Witney and surrounding areas.

London

Our London team provides Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Brentford, Chiswick, Ealing, Hayes, Hammersmith, Harrow, Heathrow, Kingston-Upon-Thame, Osterley, Richmond, Ruislip, Southall, Stockley Park, Twickenham, Uxbridge, Wimbledon and surrounding areas.

Surrey

Our Surrey team provides Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Camberley, Cobham, Dorking, Epsom, Farnham, Frimley, Gatwick, Godalming, Guildford, Leatherhead, Reigate, Staines-upon-Thames, Sunbury-on-Thames, Weybridge, Woking &surrounding areas.

Hertfordshire

Our Bristol & Southwest team provides Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Elstree, Luton, Hemel Hempstead, Stevenage, Watford, Welwyn Garden City and surrounding areas.

Buckinghamshire

Our Buckinghamshire team provides Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Aylesbury, Amersham, Beaconsfield, Buckingham, Chesham, Gerrards Cross, High Wycombe, Marlow, Milton Keynes, Taplow and surrounding areas.

Gloucestershire

Our Gloucestershire team provides Commercial Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Cirencester, Cheltenham, Gloucester, Stroud, Tewkesbury, Thornbury, Yate & surrounding areas.

South West

Our Bristol & Southwest team provides Heating, Air Conditioning, Ventilation, Plumbing, Drainage & Water services to Avonmouth, Bath, Barnstaple, Bridgwater, Bristol, Clifton, Exeter, Frome, Glastonbury, Holsworthy, Minehead, Okehampton, South Molton, Taunton, Tiverton, Wellington, Yeovil and surrounding areas.