Your home’s walls do two jobs: they protect the building and they set the first impression for everyone who walks past. In Richmond and across South West London, where Victorian terraces, Edwardian semis and 1930s homes sit side by side, the right combination of rendering and decorating can protect your property from the weather, lift its kerb appeal and add real value. This guide explains how rendering and decorating work together, which finishes suit London homes, and how to plan the job properly.
What is the difference between rendering and decorating?
Rendering is a protective coating applied to external walls, usually over brick or blockwork. It seals the surface against rain, can improve insulation when combined with an insulation system, and creates a smooth or textured finish. If you are new to the subject, our guide What Is a Render? A Guide to External Wall Finishes explains the basics.
Decorating is the finishing work that follows: preparing surfaces, painting walls, woodwork, windows, doors, fascias and railings, inside and out. Rendering gives your home a sound, weatherproof shell; decorating gives it colour, character and the final polish. Planned together, the two jobs share scaffolding, preparation and scheduling, which usually saves time and money.
Popular render finishes for London homes
Silicone render
Silicone render is one of the most popular choices in London today. It is breathable, water-repellent and largely self-cleaning, so it stays fresh for longer in an urban environment. It comes through-coloured, which means it often needs no painting at all. Read more on our silicone render services page or see our guide to silicone render costs.
Acrylic and monocouche render
Acrylic render is flexible and resists cracking, which suits homes with minor movement. Monocouche (single-layer) render is applied in one thick coat and is also through-coloured, making it a practical option for new builds and extensions.
Traditional lime and sand-and-cement render
Many period properties in Richmond, Kew, Barnes and Twickenham were built with soft bricks and lime mortar. These walls need to “breathe”, so a lime render is often the right choice. Sand-and-cement render is cost-effective but less flexible, and it is usually painted with a quality masonry paint once it has cured.

Can you paint render?
Yes, most renders can be painted, but the paint must suit the render. A breathable masonry or silicone paint should be used on silicone and lime renders, so moisture can escape rather than becoming trapped behind the coating. Painting render is a good way to refresh tired or stained walls, change the colour of your home, or extend the life of an older finish. New render must be allowed to cure fully before any paint is applied.
Exterior decorating: the finishing touches
Once the walls are rendered, exterior decorating completes the look. A typical exterior package from our painting and decorating team includes:
- Sash and casement windows: repairs, filling, priming and painting
- Front doors, porches and canopies
- Fascias, soffits, bargeboards and gutters
- Metal railings and gates
- Sills, plinths and garden walls
Doing this work while the scaffolding is up for the rendering means one set-up cost and a consistent finish across the whole property.
Interior decorating to complete the transformation
Many homeowners combine an exterior refresh with interior decorating, especially before a sale or after building work. Our decorators handle filling and making good, ceiling and wall painting, woodwork, wallpapering and specialist finishes. Find out more about our interior painting services and how home painting can increase your property value.
Planning and building regulations in Richmond and South West London
Rendering is often allowed under permitted development, but there are important exceptions:
- Conservation areas: large parts of Richmond, Twickenham, Kew, Barnes and Teddington are conservation areas, where changing the external appearance of a building usually needs planning permission.
- Listed buildings: rendering or painting a listed building needs listed building consent.
- Article 4 directions: some streets remove permitted development rights, so always check with your local council (for example Richmond upon Thames, Kingston, Hounslow or Ealing).
- Building regulations: if you re-render more than 25% of an external wall, you may need to improve its thermal performance to meet current regulations.
Our team checks these points at the survey stage, so there are no surprises later.
How a rendering and decorating project works with Richmond Traders
- Survey and advice: we inspect your walls, check for damp, cracks or loose render, and recommend the right system.
- Clear written quote: a detailed, itemised price covering rendering, decorating and scaffolding.
- Preparation: protecting windows, paths and gardens, removing failed render and repairing the substrate.
- Rendering: base coats, mesh where needed, and the chosen finish coat.
- Decorating: painting of windows, doors, fascias and any painted render.
- Final inspection: a walk-round with you before the scaffolding comes down.
Signs your home needs re-rendering or redecorating
- Cracks, bulges or hollow-sounding patches in the render
- Damp patches on internal walls
- Green algae or dark staining on the walls
- Flaking paint on windows, doors or fascias
- Faded or patchy colour that no longer suits the property
Frequently asked questions
How long does rendering last?
A good-quality silicone or acrylic render, properly applied, can last 25 years or more with minimal maintenance. Traditional sand-and-cement render usually needs repainting every 5 to 10 years.
What is the best time of year for rendering in London?
Spring to early autumn is ideal, as most renders should not be applied in frost or heavy rain. Interior decorating can be done all year round.
Do I need to move out during the work?
No. External rendering and decorating happen outside your home, and interior decorating can be planned room by room to keep disruption low.
Which areas do you cover?
We work across South West London, including Richmond, Twickenham, Isleworth, Hampton, Kingston, Ham and Petersham, Sheen, Barnes, Kew, Teddington and Ealing.
Request a quote for rendering and decorating
Whether you need a full re-render, a fresh coat of paint or a complete inside-and-out transformation, Richmond Traders can help. Contact our team to arrange a survey and a clear, no-obligation quote.
