All you need to know about having your external walls rendered including costs of materials, costs of labour and time frames.
Render is simply a sand and cement mix that is applied to exterior brickwork, originally to cover up and waterproof old bricks that were letting in moisture, but today a popular choice as an alternative wall finish. Render is usually applied in two coats; the second coat can be smooth or be pebble dashed.
Once rendered masonry paint is usually applied to keep out moisture, as any moisture which penetrates the render can freeze in winter and cause the render to break up and fall off the wall. The job entails erecting scaffold, removing any existing render, keying the brickwork, then applying two coats of render.
Before applying render, it is important that the brickwork is in good condition with no crumbling or missing mortar, if not then you should have the brickwork repointed and any damaged bricks replaced. You should also bear in mind that most tradesman will not include the cost of painting in the rendering quote, so this is another related job that will need budgeting for. In addition, the fascia and soffit boards along with guttering will often need to be removed before rendering, so if any of these items need replacing it makes perfect sense to have this done at the same time to save on labour costs.
Rendering the external walls of a house does not normally require planning permission, unless of course the house is located within a conservation area or is a listed building.
Even though rendering work does not need planning permission, if you are rendering a substantial part of a house you must comply with Building Regulations. This will usually mean that on an older house the walls will have to be insulated before rendering. By adding insulation in the cavity or by applying insulation on the surface of the external walls in buildings with solid walls and no cavity.
Before rendering the walls should be checked and any necessary repairs made to any structural defects otherwise the render finish is likely to fail. Any new finish is only as good as the surface beneath it! External items like roofline products will often have to be removed with rainwater and soil pipes and any other external details including alarm boxes, satellite dishes etc. If external wall insulation is being applied, then this is usually in the form of rigid boards or slabs, depending on the type of wall and of course your budget.
To scaffold a typical 3-bed semi-detached house, remove all the existing render, prep the surface (keying, stabilizing, brushed, etc) and apply two layers of smooth render; will cost around £3000-£4000. This will not include the cost of painting. For a pebbledash finish add on around an extra £1000, plus if you want the pebbledash render painted then add on an additional £500, as painting pebbledash is not an easy or quick task, and requires a brush which needs to be pressed into the render to get good paint coverage.
Most renderers charge per job rather than per day as there will be a lot of days waiting for the different stages to finish drying. For a 3 bed semi-detached property a full rendering job usually takes around a week to complete.
Here are a few average costs for hiring someone to render the external walls of a property:
|House Type||Finish Type||Avg. Cost||Duration|
|Semi-detached Bungalow||Smooth||£2000||3-6 days|
|Detached Bungalow||Smooth||£2500||4-7 days|
|Terraced House||Smooth||£3000||4-7 days|
|Semi-detached House||Smooth||£3750||5-8 days|
|Detached House||Smooth||£4500||7-10 days|
|Semi-detached Bungalow||Pebble-Dash||£2500||4-7 days|
|Detached Bungalow||Pebble-Dash||£3000||5-8 days|
|Terraced House||Pebble-Dash||£3750||5-8 days|
|Semi-detached House||Pebble-Dash||£4500||6-9 days|
|Detached House||Pebble-Dash||£5500||8-12 days|
Individual costs for hiring a rendering company to fully render a 3 bed semi-detached house with a smooth finish - Total Cost: £3750