Cost of having your House Rendered

All you need to know about having your external walls rendered including costs of materials, costs of labour and time frames.

external rendering

What the job entails

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.

External Rendering Cost

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


Cost Breakdown

Individual costs for hiring a rendering company to fully render a 3 bed semi-detached house with a smooth finish - Total Cost: £3750

10%

Materials
£375

60%

Tradesmen
£2250

30%

Scaffolding
£1125

FAQ's

There are various reasons for rendering your property; including improving the aesthetics, preventing penetrating damp, and improving the thermal performance of the exterior walls. But the number one reason for rendering is to improve the look by brightening up grubby looking walls. While some properties can end up with a natural weathered appearance over the years, others can end up simply looking tired and unattractive from years of exposure, adding a layer of render can completely change the look of the property.

If the bricks are prone to water ingress and penetrating damp issues, then adding a layer of blocks the path of water into the property and prevents this form of damp on older solid brick properties. However, if you have damp issues before rendering, you should always get an expert in to take a look as some times render will not be the best answer. Rendering also will have a slight insulating effect, but if you are concerned about insulation you should really consider having full external insulation applied at the same time to save on labour costs.
Getting the right type of render is an important consideration as each type of render has different properties. The three main types of render are Acrylic, Mineral and Silicon. Acrylic is the cheapest but is not breathable, Mineral is very tough and hard wearing, while somewhat breathable, whereas Silicone Silicate is the most expensive but is self-cleaning and breathable, though it does have to be installed in the summer as it needs warmer temperatures to dry properly.
With rendering you are looking at a considerable cost, so it’s not going to be worth it for everyone. Think carefully about the type of render you need and why you want to render in the first place, you especially need to consider whether you want to insulate at the same time. Take into account render is an investment that is going to be on your wall for many years will be costly to remove or replace. You are unlikely to recoup the cost of rendering in a future house sale for example, though a nice coat of exterior render can make your home more attractive and perhaps easier to sell, it does not do much for the resale value. However, if your home is suffering from penetrating damp and a surveyor has recommended rendering, then it obviously needs to be done, in the long run not solving the penetrating damp issues will likely cost even more!