Loft InsulationInstallers

Pipe and tank lagging in Cardiff

Homes in Cardiff get the same service as everywhere else we work in South Glamorgan. For pipe and tank lagging, that means a free fixed quote, often from a couple of photos.

Jobs in CF10, CF11 and CF24 are all within our normal area. The local authority is Cardiff.

Guide price £95 to £195 Cardiff, South Glamorgan
A lagged cold water tank and pipes in a loft

Where we work around Cardiff

Other towns close by include Penarth, Trowbridge (South Glamorgan), Barry and Cowbridge.

Postcode districtsCF10, CF11, CF24, CF5
Council areaCardiff
County or areaSouth Glamorgan

What is pipe and tank lagging?

We fit a jacket to the top and sides of each tank and foam lagging to every exposed pipe, taped at the joints and bends. Overflow pipes and any condensate pipes in the loft are included. More about pipe and tank lagging.

  • Ceiling under the tank left clear
  • Foam pipe lagging, taped
  • Tank jacket and close-fitting lid

Why book with us in Cardiff

No pressure selling

You get everything in writing and decide in your own time.

Fixed written price

The price on the quote is the price you pay. It only changes if you change the job, or if we find something hidden, such as rot, and you agree the change in writing first.

Clear contact details

Your quote says who to call with questions before, during and after the work.

Plain-English advice

We explain what we find in plain English, and say so when nothing needs doing.

How much does pipe and tank lagging cost in Cardiff?

£95 to £195Tank jacket and pipe lagging, typical loft. Free fixed quote, often from a couple of photos.

Installing insulation in a home is zero-rated for VAT until 31 March 2027 and 5% after that, under HMRC's rules for energy-saving materials (notice 708/6).

Work out a guide price for your loft

Building regulations in Wales

Wales has its own Approved Document L. Insulation alone is not normally notified, but conversions need building control. How the rules work across the UK.

Questions about pipe and tank lagging in Cardiff

Is loft work in Cardiff different from anywhere else?

The method is the same, but older terraces, cottages and newer estates each have their own quirks: lath ceilings, low pitches or trussed roofs. We plan for the loft we find.

Do you take on jobs outside Cardiff?

Yes. We also work in Penarth and Trowbridge (South Glamorgan) and elsewhere in South Glamorgan.

How do I pay for work in Cardiff?

Payment terms are set out on your quote. We never ask for payment on the doorstep or in cash.

Do I need a lid on my cold water tank?

Yes. A close-fitting lid keeps debris and insects out and is part of the water regulations for cold water storage.

Should I insulate under the water tank in the loft?

No. Leave the ceiling directly under the tank uninsulated so a little warmth from the house reaches it. Insulate the top and sides instead.

Pipe and tank lagging in other towns

Other loft work in Cardiff

Find out what your loft needs

Free survey and a fixed written quote for installation work. Guide prices first if you prefer.