REMEDIAL AND PLUMBING WORKS

Lengths of unused pipework have little to no water flow, this creates a stagnant breeding ground for harmful pathogens such as pseudomonas and legionella bacteria. Where possible these should be removed from the pipework entirely.

Expansion vessels need to be orientated vertically with the drain point at the bottom to allow water to drain out and not sit stagnant, these are often found installed incorrectly and require adjustment. Other common issues with expansion vessels include corrosion and ruptured bladders that can pose significant risk to the water system.

The fitting of insulation to tanks and pipework can be carried out to minimise heat loss / gain. Heat gain in tanks and pipework can be caused through warm weather conditions along with proximity to other heat sources (such as hot water pipes).

Loss of heat from pipes through a lack of insulation is both expensive and harmful to the environment.

Vents from heaters are often incorrectly configured to flow into CWST’s. These vents should terminate at a drain point / tundish and not over a cold water storage tank, where the water needs to stay below 20ᵒC. This could lead to an increase in temperature into the legionella bacteria proliferation range and in rare cases could lead to scalding.

Water regulations state that every fitting through which water is supplied for domestic purposes should be installed in such a manner that no backflow can take place. We fit double check valves which are devices consisting of two valves which permit water flow only in one direction.

TMV’s are essential in preventing at risk groups from scalding. Risk assessments will often identify areas requiring additional protection from scalding risks through the installation of a TMV. TMV’s and TMT’s may also require replacing if they are found to be faulty during a service or fail-safe check.

Over time with use, sometimes outlets will fail and require replacement. These outlets come in a variety of types and fitment patterns such as pillar taps, mixer taps, monobloc taps, washer taps, disc taps, ball taps and cartridge taps.

Additional assets such as showers or washbasins may be required to be installed onto existing systems along with associated pipework. Using a specialist contractor who understands legionella guidance can save money in the long term.

Various types of valves are often fitted to the water system, these can sometimes become worn, seized or broken and may require to be replaced. These can come in a variety of types including ball valves, gate valves, butterfly valves, globe valves, pressure relief and pressure relief valves.

For further information on the remediation of CWST’s, please see our dedicated page by clicking the button below.

Tank refurbishment / replacement and remedial works

Water heaters and hot water generators will with time require replacement. This can be due to faulty units or through switching to more efficient environmentally friendly units. These can include calorifiers, instantaneous water heaters, point of use water heaters and cistern type water heaters.