We do Water Mains Chlorinations and Pressure Testing for new and existing pipework
National Hot and Cold Water Chlorination and Commissioning Engineering Services. Energy & Utility Skills Register (EUSR): 538254
Why choose Mains Chlorination Ltd
Book Online
Book online and choose a day that suits you. We confirm the date with you.
Accurate UKAS Sampling
We understand the importance of water analysis. That’s why we only work with fully UKAS accredited Laboratories.
UKAS Chlorination Services On Site
We know that it is very important to receive your Chlorination Certificate as soon as possible, especially if you have a connection pending. That’s why we issue instant electronic certificates whilst we are on-site.
Nationwide UK Service
No matter where your job is within the UK & Ireland we can help. We have fully trained engineers located across the whole of the UK.
Competitive Pricing
Our prices are competitive within the chlorination industry. With engineers based across the UK we are able to price our jobs competitively and bring the saving to you.
Existing Building Pipework Chlorination
We work with many contractors on existing building pipework chlorinations for example if a building has been empty or disused for a period of time and the water system requires a chlorination.
What you can expect when you work with us
- Guaranteed water mains connection to BS8558 standards
- We work with all water authorities and their subsequent requirements
- You can request your water main chlorination or commissioning online at any time
- Quick, no obligation quotes
- All pipe varieties and lengths acceptable
- Instant chlorination certificate issued on-site – same day certification
- Microbiological testing through our UKAS-accredited laboratory
- Approved Data-logged pressure testing available
- Energy & Utility Skills Register (EUSR): 538254
- Water mains chlorination available nationwide – fast turnaround guaranteed
Mains Chlorination offers a range of services

Nationwide New Water Mains Chlorination
The chlorination of a new mains water supply must be chlorinated and UKAS water analysis taken prior to connection by the Water Utility company
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Nationwide Existing Building Pipework Chlorination
Cleaning, disinfection and chlorination of water systems should be carried out when the water has not been used regularly, flushed or the water treatment control...
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Mains Water Chlorination Certificate
Instant chlorination certificate to the latest standards issued on site following all water chlorinations. Our water authority-approved, EUSR engineers are highly...
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Water Testing Service
Water samples are sent to a UKAS certified laboratory. Results are issued to you within 3-5 working days
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New Water Mains Pressure Testing
Water Utility companies have strict guidelines and procedures for pressure testing. Pressure testing requires specialist expertise as well as full data logging and...
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Data Logging
Prior to connection of a new mains water pipe, the majority of water utilities companies require proof that the new mains pipe is solid, secure and does not leak. Water...
Read moreHow we work
We work with specialist equipment to ensure you are connected the first time we are on site. We only use stainless steel fittings and food grade hosings to ensure an accurate dosing of chlorine is deposited. We use digital equipment to analyse our findings on site.
Energy & Utility Skills Sector Group
Mains Chlorination Ltd provides a full chlorination and data logger pressure testing service for all new mains connections, irrespective of size. We are registered “Approved” by the Energy & Utility Skills Sector Group.
Expert commissioning services on the following networks
We work with all the main water utility companies. Choose your network to see how we can help in your area.
What our customers say
We understand the importance of delivering timely water chlorinations at competitive prices across the UK. We work with clients like you everyday to ensure your water chlorination is completed in a professional manner. We make sure you understand the chlorination process in full and your responsibilities once the chlorination has been completed and the chlorination certificate issued electronically.
In my hour of need Mains Chlorination came up trumps. From my initial contact to completion of the process the team were professional, responsive and delivered outstanding service. I will definitely use Mains Chlorination for all future works and would wholeheartedly recommend them. A great company to do business with.
New Springwood Nursery, LeedsNeed a mains chlorination?
Book online, request a quote or call the team for advice.









