Where’s the job?

Scope of Works

• Inspect existing external sink route and visible pipework for cracks, corrosion and frost damage

• Isolate supply and drain where possible and drain down the section to be replaced

• Remove damaged external supply or waste pipe and remove old fittings and sealants

• Fit new weather-rated pipe and appropriate external joints, plus new trap and isolation valve where required

• Insulate exposed pipework and secure routing to prevent movement and frost damage

• Pressure test and inspect for leaks, run a water check and tidy the area; use PPE when handling contaminated water

Typical Cost

Time on Site

Most straightforward outdoor sink pipe replacements take 1–4 hours depending on access and length of pipe; jobs that need trenching, pavement reinstatement or traffic management can take a day or more.

Questions to Ask Your Tradie

• Do you have experience replacing external-rated pipework and fitting frost protection

• Will you locate buried services and provide a safe digging plan or require a utility trace

• Are permits, council licences or traffic management needed for excavation or pavement work

• What materials and brands will you use and are these rated for external exposure

• Do you include pressure testing, guarantee periods and a written quote for any extra work found on site

• How will you protect decking, plants and boundaries and what access do you need from me on the day

How to Avoid Surprises

• Clear the area around the sink and move pots, furniture and tools out of the way

• Provide any plans showing underground services or point out likely routes to the tradesperson

• Organise parking or a nearby drop-off space for the van and agree arrival time

• Check whether pavement or public-highway work needs council permission and agree who arranges it

• Keep pets away during works and tell neighbours if digging or noisy work is planned

• Agree a parts spend limit for unforeseen extras or ask the tradie to call before ordering larger items