
Dry Riser Installation, Repairs and BS9990 Compliance Testing serving Knebworth in Hertfordshire
When it comes to dry riser installation, testing, and repairs, The Oltec Group is the trusted choice for property managers and responsible persons across Knebworth in Hertfordshire. With more than 40 years of experience in facilities management, our BS9990 trained dry riser engineers deliver a reliable, fully compliant service for residential and commercial buildings of all sizes. From routine dry riser inspections and hydraulic pressure testing to urgent fault repairs and certification, we manage every aspect of your dry riser maintenance. Our team works to British Standards so that your fire safety systems remain legally compliant, fully operational, and ready to perform under real emergency conditions.
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βοΈ 0800 038 9786
βοΈ info@oltecgroup.co.uk
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β Established 40+ years β Fully accredited
β Nationwide coverage β 24/7 emergency support

Experienced Dry Riser Engineers You Can Rely On
When you choose our dry riser servicing team, you benefit from over 45 years of combined industry experience and a genuine commitment to fire safety excellence across Knebworth in Hertfordshire and the wider region. Our dry riser engineers are not generalists but specialists who focus exclusively on dry riser systems and fire safety infrastructure, which means they bring a depth of knowledge and practical understanding that makes a real difference to the quality of every service, inspection, and repair. At Oltec Services, we believe that reliable fire safety starts with a reliable team, and our engineers are trained to the highest standards, working in accordance with BS9990 and all relevant UK legislation. Whether we are carrying out a scheduled annual inspection, responding to a reported fault, or completing a new dry riser installation, our team approaches every job with the same level of rigour, care, and professionalism that property managers and duty holders have come to expect from us over many years of partnership.
Professional Dry Riser Maintenance for Residential and Commercial Buildings
At Oltec Services, we offer comprehensive dry riser maintenance services designed to keep residential and commercial dry riser systems across Knebworth in Hertfordshire fully compliant and operationally ready throughout the year. A well-maintained dry riser system is central to effective fire safety management in multi-storey buildings, providing firefighters with rapid access to a reliable water supply at any floor level during an emergency. Our service covers all aspects of dry riser maintenance, from detailed visual inspections of inlets, landing valves, outlet valves, and pipework to hydraulic pressure testing and full compliance reporting. We understand that property managers are responsible for ensuring that their fire safety systems meet the requirements of current UK legislation, and our team makes that responsibility easier to manage by delivering a consistent, high-quality maintenance service with minimal disruption to building occupants. Following each visit, we provide comprehensive maintenance reports and compliance certificates, giving duty holders the documented evidence they need to demonstrate that their dry riser systems have been properly serviced and maintained.


Why a Dry Riser System Is Critical to High-Rise Fire Safety
Understanding why a dry riser system is critical to building fire safety helps property managers appreciate the importance of keeping it properly maintained and compliant. A dry riser is a network of vertical pipework installed inside a building, designed to allow the fire brigade to pump water from street level up to landing valves on each floor, providing a reliable supply wherever it is needed most during a fire. Unlike wet risers, a dry riser contains no water under normal conditions, which means it requires dedicated testing and inspection to confirm that it will perform correctly when called upon in a real emergency. For buildings over 18 metres in height across Knebworth in Hertfordshire and throughout the UK, dry risers are a mandatory fire safety requirement, and their maintenance is governed by BS9990 and associated UK fire safety legislation. At Oltec Services, our engineers understand the critical role these systems play in protecting lives and supporting emergency responders, and our maintenance and testing services are designed to ensure every system is consistently ready, reliable, and compliant.
BS9990 Compliant Dry Riser Testing and Certification from Trusted Engineers
Our dry riser maintenance service covers every element of BS9990 compliant inspection, testing, and repair, giving property managers and duty holders across Knebworth in Hertfordshire complete confidence in their fire safety systems. During each visit, our engineers carry out a full visual inspection of all dry riser components, including inlets, landing valves, outlet valves, drain points, and associated fittings, checking for signs of damage, corrosion, or non-compliance. We verify that all signage is correctly displayed and that all caps and blanking plates are in place and in good condition. Hydraulic pressure testing is carried out to confirm system integrity, and any defects identified during the inspection are reported, and where possible, repaired during the same visit. On completion, Oltec FM issues comprehensive compliance certificates and written maintenance reports to support your fire safety records. Our BS9990 trained engineers apply consistent, methodical standards to every project, making us the preferred choice for responsible persons who need to be certain that their dry riser systems meet all legal requirements and are ready for use in any emergency.


