Group C · External wall insulation and render
Sand and cement, pebbledash and spar dash
Traditional renders, repairs and re-dashing.
Priced after survey
Sand and cement, pebbledash and spar dash
Every job like this is different, so we measure first and give you a fixed written quote. The price depends on:
- The area and access
- What's there now and its condition
- The system and finish you choose
No obligation — your survey confirms what suits and what it costs.
- Best for
- Repairs and like-for-like
- Guarantee or standard
- Manufacturer's guarantee, confirmed in your quote
- Time on site
- Usually one to two weeks for a typical house including scaffolding, depending on size, repairs and weather.
- Typical price
- Priced after survey
What it is
What is sand and cement, pebbledash and spar dash?
Traditional renders, repairs and re-dashing.
Best for: Repairs and like-for-like.
Build-up
Render only
- 1Existing wall
- 2Base coat and mesh, where the system needs it
- 3Render finish
No insulation layer — render is a finish, never sold as insulation.
Who it suits
Which homes is sand and cement, pebbledash and spar dash suitable for?
Is my home suitable?
Pick your property type for a straight answer on sand and cement, pebbledash and spar dash.
Guidance only — every home is different, and a survey confirms what suits yours.
Houses
- Detached house
- Semi-detached house
- End-of-terrace
- Mid-terrace
- Townhouse
- Mews house and cottage
- Detached bungalow
- Semi and terraced bungalow
- Chalet and dormer bungalow
- Period home
- 1930s home
- Post-war and ex-council house
- Non-traditional / system-built
- Listed building or conservation area
- Farmhouse, barn conversion or rural home
- New build or self-build
Flats and blocks of flats
Commercial and public buildings
Usually suitable Depends — a survey confirms
Not usually suitable for 5 property types
- Park and mobile home — Park and mobile homes need specialist systems, which we arrange through a partner rather than standard measures.
- Purpose-built flat — A flat's outside walls are the building's responsibility, so rendering is done as building-wide works.
- Ground-floor, top-floor flat or maisonette — A flat's outside walls are the building's responsibility, so rendering is done as building-wide works.
- Mansion block — A flat's outside walls are the building's responsibility, so rendering is done as building-wide works.
- Ex-local-authority flat or maisonette — A flat's outside walls are the building's responsibility, so rendering is done as building-wide works.
Materials and brands
What we use
Traditional renders, repairs and re-dashing.
EWI and render brands we work with
- Sto
- Weber
- K Rend
- Wetherby
- Parex
Insurance-backed EWI usually requires approved-installer status with the system holder. The exact system and brand for your home are confirmed in your written quote.
Heat, bills and EPC
What it does for your heat loss, bills and EPC
Render on its own is weatherproofing and appearance — it doesn't insulate, so it won't lower the wall's U-value, your heating bills or your EPC. If lower bills or a better rating is the goal, external wall insulation puts insulation under the new finish while the scaffold is already up.
See the EPC points and savings for your home in the EPC plannerU-value before and after, typical heat and bill saving, and EPC points — worked out for your property.Price
How much does sand and cement, pebbledash and spar dash cost?
Priced after survey
Jobs like this vary too much for a fair online price, so we measure first and give you a fixed written quote — with no obligation.VAT on this work
Render without insulation isn't an energy-saving material, so standard VAT applies. External wall insulation in homes is zero-rated until 31 March 2027.What to expect
Time on site, disruption and approvals
Time on site
Usually one to two weeks for a typical house including scaffolding, depending on size, repairs and weather.
Disruption
Most of the work happens outside, so you stay in your home. Scaffolding is up for the duration, and downpipes, meters, lights and satellite dishes are moved and refitted.
Planning and building control
Like-for-like re-rendering doesn't usually need planning permission; changing the look in a conservation area or on a listed building may need permission or consent. Renewing render over a large area of wall can mean Building Regulations expect insulation to be considered at the same time — we'll tell you if it applies.
Guarantee and standard
Manufacturer's guarantee, confirmed in your quote.
Questions
Sand and cement, pebbledash and spar dash: your questions answered
Can you match my existing pebbledash?
We aim to match the aggregate, colour and texture for patch repairs. Large areas are often better fully re-dashed for an even look.
Is sand and cement render right for my house?
It suits like-for-like repairs on masonry built for it. On old solid walls built with lime, lime render is usually the better choice.
Will re-rendering insulate my home?
No. If you're re-rendering a large area, it's worth looking at external wall insulation at the same time, because the scaffold and the new finish are already part of the job.
Group C
More in external wall insulation and render
External wall insulation (EWI)
A complete certified build-up of insulation board, mesh and render from one system holder.
EWI with brick slip finish
External wall insulation finished in brick slips so it looks like real brick.
K Rend silicone through-coloured render
One- or two-coat silicone render that cleans itself and never needs painting.
Monocouche render
Through-coloured single-coat cement render.
Acrylic and silicone thin coat
Thin finishes over a base coat and mesh for a smooth modern finish.
Lime render
Breathable lime render and lime plaster for older solid walls.
Begin your project
Ready to talk about sand and cement, pebbledash and spar dash?
Tell us about your home and we'll arrange a survey, then a fixed written quote — no obligation.