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Drain Services Limited - See our new Branch Frimley - working hand in hand with DSL Salisbury (South of England and Salisbury, plus The West County) and our London branch, Unbloc Drainage Engineers Limited (London and Home Counties) are here 24/7 - every day of the year. Drain Services is now UVDB Reg - DSL & Unbloc are now on - 1SO 9001:2008 & BSOHSAS 18001:2007 - CHAS companies.

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Contract Maintenance

Our clients look after some of the most prestigious sites in the country and whilst doing so, appreciate the value of planned, preventative maintenance (PPM). Managing buildings and sites with tight budgets, it is vitally important to predict outgoings as precisely as possible. Agreeing a maintenance contract will do that.

Unbloc will tailor a maintenance contract to the individual needs of each property, with the property managers concerns taken into account. We know that no two properties are the same, and each client has their own concern. Flexibility is one of our key assets, whatever you need from us, Unbloc will deliver. We pride ourselves in working closely with our clients to ensure that all works are carried out to their specifications, at a time convenient to you.

Regular drain jetting, stack pipe cleaning, float line de-scaling and pit cleaning are all areas where we can save you money and minimize hassle. PPM contracts are usually annual, 6 monthly or quarterly, depending on the property. Each contract is totally bespoke to your requirements.

We provide FREE callout cover from 3-6 months, up to a year after our visits.

Contact Unbloc now to arrange a FREE property inspection and quote.

Contact Us

01722 414034


Based in Salisbury, Works the South Of England.

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