Many new extensions in the Midlands are built in block, not face brick. Block is quick to build with, but it needs a finish on the outside. Render is the most common choice. It makes the extension look clean and modern, and it keeps the weather out. RCR Connections Ltd (Regal Colour Rendering) is Birmingham based, covering the whole of the Midlands. We render new extensions, garden rooms and block work with K-Rend monocouche and silicone.
For a free quote: WhatsApp me on 07453 614095 or message the page. Send pictures or videos via WhatsApp for a quick response, a free quote and advice. Photos from each side and any drawings are enough to start.
Renderers by trade
I’m David. I am a plasterer and renderer by trade, and I still work on the tools. Across the team there are 62 years of combined experience. New extensions are some of our favourite jobs. The walls are new, flat and sound, so the render goes on well and the finish is crisp. The key is the detail: beads, corners, window reveals and the line where the new render meets the old house.
What we render
- Single-storey rear extensions, including kitchen and family room extensions with large glazed doors.
- Side and wrap-round extensions.
- Two-storey extensions.
- Garden rooms and home offices.
- Porches.
- New block garden walls and bin stores, so they match the house.
Which render for a new extension?
We use K-Rend monocouche and silicone. Both suit new block work. Here is the plain difference.
- K-Rend monocouche. The colour is mixed right through the render. It goes on thick in one main coat and is scraped back to an even, slightly textured finish. It needs no painting. Small knocks do not show a different colour underneath.
- Silicone render. A base coat with mesh set in it, then a thin coloured top coat. It is flexible, so it copes well with small movement. It sheds water and dirt, so it stays clean for longer. It comes in a wide range of colours and a smooth, fine finish.
Both are a good choice for a new extension. We will help you pick the one that suits your house and the look you want. Read more on our pages on K-Rend in Birmingham and silicone render in Birmingham, or in our guide K-Rend vs silicone vs sand and cement render.
Some people prefer a painted finish. For that we can use sand and cement render, though it needs painting and repainting over the years.
Colours
White and off-white are the most popular colours for extensions. Light greys and creams are popular too. Darker colours can look great, but they show marks more and can fade a little faster in strong sun. We have colour charts and can show you samples. Look at the colour outside, in daylight, before you decide. Colours look different on a big wall than on a small card.
Matching the rest of the house
If the rest of your house is brick, the extension can be rendered to stand out as a clean, modern part. Many people like that look.
If the rest of the house is already rendered, you will want the new part to match. We can get close on colour and finish. New render next to old can look a little different at first, because the old render has weathered for years. Often the best way to get a perfect match is to render the whole back of the house at the same time, so it is all new and all the same.
When to bring in the renderer
The usual order on an extension is:
- Block work is built and has had time to dry.
- The roof is on.
- Windows, doors and sills are fitted.
- Fascias, soffits and gutters are on.
- We render.
- Downpipes and outside lights are fitted back on the finished render.
Tell us your builder’s dates and we will fit in. Message us as soon as you have a rough date.
How we render an extension, step by step
- Check the block work. We make sure it is sound, dry and flat enough to render.
- Scaffold. On taller extensions, scaffold goes up so we can reach every part safely.
- Protect. Windows, doors, roof edges and paths are covered.
- Beads. Beads go on every corner, round windows and doors, and along the bottom of the wall above the damp-proof course. Good beads give crisp, straight lines.
- Base coat and mesh. For silicone, a base coat goes on with mesh set into it, which helps stop cracks.
- Main coat. For K-Rend monocouche, the main coat goes on thick and is left to firm up.
- Finish. Monocouche is scraped back to an even finish. Silicone gets its thin top coat, which is floated to a fine, even texture.
- Clean up. Covers come off, the site is cleaned and we check every edge.
Garden rooms
Garden rooms are often built in block, or with a timber frame and boards. Block garden rooms render just like an extension. For board-built rooms, the right system depends on the board. Send us photos of how it is built and we will tell you what we can do.
Weather and timing
Render needs the right weather. It must not freeze while it sets, and heavy rain can spoil a fresh finish. We plan round the forecast and stop if it turns. Our guide on rendering in winter explains more.
Looking after new render
- Keep gutters clear so water does not run down the wall.
- Keep soil, plants and bark chips away from the bottom bead.
- Wash off any green marks gently. Do not use a strong pressure washer.
- Fix any knocks early.
Why choose RCR Connections Ltd
- We are renderers by trade, with 62 years of combined experience across the team.
- We use K-Rend monocouche and silicone and help you pick the right one.
- We can plaster the inside as well. See plastering extensions and lofts.
- We fit round your builder.
- We are Birmingham based, covering the whole of the Midlands.
What to send us
- photos of the extension from each side,
- a photo of the rest of the house, if you want it to match,
- any drawings,
- your rough dates and postcode.
Where we render new extensions
We render new extensions and garden rooms all over Birmingham and the Midlands. We work with home owners and with the builders putting up the block work.
Popular towns for this work: Bromsgrove, Aldridge, Cannock, Stratford-upon-Avon, Shirley.
See every town we cover on our rendering areas page.
Extension rendering questions
Do you render new extensions in Birmingham?
Yes. RCR Connections Ltd is Birmingham based, covering the whole of the Midlands. We render new extensions, garden rooms and new block work with K-Rend monocouche and silicone.
Which render is best for a new extension?
On new block work, K-Rend monocouche and silicone both work well. Monocouche gives a scraped look with the colour right through. Silicone gives a smooth, clean finish and more colour choice.
Can you match the render on the rest of my house?
We can get close on colour and finish. New render next to old render can look a little different at first, as the old render has weathered. Sometimes it is best to render the whole back of the house so it all matches.
When should the renderer come in?
Once the block work is done and dry, the roof is on, and the windows, doors and sills are fitted. Fascias and soffits should be on too.
Do I need to paint the render?
No. K-Rend monocouche and silicone have the colour built in, so they do not need painting.
Can you render a garden room?
Yes. We render block and some board-built garden rooms. Send us photos of what it is built from and we will tell you what system suits it.
How long does it take to render an extension?
A single-storey extension is often two to five days on site, plus time for the base coat to set. Weather can add time.
Can you render in winter?
Only when the weather is right. Render must not freeze or get soaked while it sets. We plan round the forecast and stop if needed.
What are your working hours?
Monday to Friday 7am to 5pm, Saturday 7am to 1pm. We are closed on Sundays.
How do I get a quote?
WhatsApp me on 07453 614095 or message the page. Send pictures or videos of the extension and any drawings.
Get a free extension rendering quote
WhatsApp me on 07453 614095 or message the page.
Send pictures or videos via WhatsApp for a quick response, a free quote and advice. Show us the extension from each side, and tell us when the block work, windows and roof will be done. Add your postcode.
Opening hours: Monday to Friday 7am to 5pm, Saturday 7am to 1pm, Sunday closed.
See finished work on our projects page, or use our contact page. RCR Connections Ltd (Regal Colour Rendering), Birmingham based, covering the whole of the Midlands.