Cracked Render
Fine cracks are raked out and filled; wider or longer cracks are cut out and patched with new render so water can’t get in behind.
Render repairs in Poole & Dorset
Cracked or blown render repaired before it spreads
Cracked, hollow and damaged sand and cement render cut back, patched and matched to the rest of the wall, for houses, extensions and garden walls across Dorset.
- Free, no-obligation quotes
- Sand & cement render
- Clean & tidy on every job
Since 2015Poole & Dorset
Render Repairs in Poole & Dorset
Get in TouchCracks in your render, or patches that sound hollow when you tap them? Four Four Finishes repairs sand and cement render on houses, extensions and garden walls across Poole, Bournemouth and Dorset.
Render keeps the weather off your brickwork, so a crack or a blown patch is worth fixing early. Once water gets in behind render it can push more of it off the wall, especially through a cold winter, and a small repair turns into a bigger one.
We cut back to sound render, patch it in sand and cement to match the thickness and texture of the wall, and leave it ready to paint. If too much of the wall has failed to patch, we’ll tell you honestly and quote for re-rendering instead.
What We Repair on outside walls
We work with traditional sand and cement render only. For new render or a full re-render, see house rendering. Not sure why your render is cracking? Read our guide to render cracking.
Blown Render
Hollow patches that have come away from the wall are cut back to sound edges and re-rendered in coats, level with the wall around them.
Corners & Reveals
Broken corners, edges and the render around windows and doors rebuilt straight and true.
Garden Walls
Cracked or crumbling render on garden and boundary walls repaired, or re-rendered where it’s past patching.
Matching the Finish
Patches are finished to match the texture of the existing render, ready for masonry paint so the repair blends in.
When render has failed across a wall, we take it off and re-render it in traditional sand and cement.
Got cracked or blown render on your house?
Tell us what you’ve spotted (a photo helps) and we’ll arrange a time to take a look. You’ll get a free, no-obligation quote with the work and the price set out clearly.
Interior Services
Exterior Services
Since 2015
Patch or Re-render? what your render needs
Tap the render gently with the handle of a screwdriver. Sound render gives a solid knock; blown render sounds hollow. A few hollow patches or the odd crack can usually be repaired on their own.
If hollow areas run across most of the wall, cracks keep opening up, or the render is crumbling, patching becomes a false economy because the next patch fails next to the last one. Then it’s better to take the old render off and re-render the wall.
New render looks different from old until it’s painted, so plan to repaint the wall once the repairs have cured. We’ll tell you how long to leave it first.
How Render Repairs Work from visit to finish
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Look and quote
We look at the damage and check how far it goes, then give you a free, no-obligation quote.
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Plan around the weather
Render needs dry, frost-free weather to cure properly, so outside work is booked around the forecast.
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Cut back and patch
Loose render is removed back to sound edges and the patch is built up in sand and cement coats, level with the wall.
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Ready to paint
Once it has cured, the repair can be painted with masonry paint so it blends in. We’ll tell you when it’s ready.
Why Choose Four Four Finishes?
Searching for a dependable plastering company near you?
At Four Four Finishes, we are trusted by homeowners throughout Bournemouth, Poole and the wider Dorset area for several reasons.
We have years of experience in plastering, rendering and dry lining
Our professional, friendly and reliable service is unmatched
As a business, we ensure that only the highest-quality materials are used in our work
All our pricing is competitive and our quotes transparent
What Our Customers Say
5.0 out of 5 from 15 reviews on Yell (opens in a new tab)
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Skim plastering Plasterboard Walls and Ceilings
Tom skim plastered two small rooms in our cottage. The work was done in a day. Tom was very polite and completed the work to a high standard. The the job was left clean and tidy. We are very happy with the work. We would use Tom again.
SimonL-1056 September 2026 · Yell review -
Brilliant lime plasterer
Tom was an absolute genius. Had a large room lime plastered. Took 3 days. They were quiet and very clean. The results were amazing. Wish I had found this company earlier and highly recommend
EmmaF-718 November 2025 · Yell review -
Excellent work.
Tom delivered outstanding workmanship with impressive efficiency, completing the job promptly and to a superb standard. He was attentive to every detail I requested and showed genuine consideration for everyone in the household, keeping the space clean, tidy, and disruption to a minimum throughout. A pleasure to deal with, and I wouldn’t hesitate to call on him again.
Read the full review from JamesB-854880JamesB-854880 October 2025 · Yell review
Render Repair FAQs
Can you repair render without re-rendering the whole wall?
Yes, if the damage is limited to a few cracks or patches. We cut back to sound render and patch it to match. If most of the wall is hollow or crumbling, re-rendering is usually better value, and we’ll explain why.
What causes render to crack?
Common causes are movement in the building, water getting in behind the render, frost, and old render that has reached the end of its life. Fine surface cracks are common; wider or growing cracks should be looked at.
What is blown render?
Render that has come away from the wall behind it. It sounds hollow when tapped and often bulges or cracks. It needs cutting out and re-rendering, because water can collect behind it.
Will a render repair show?
Fresh render is a different colour from old until it’s painted. Once the repair has cured and the wall is painted with masonry paint, it should blend in.
What type of render do you repair?
We work with traditional sand and cement render. We don’t install or repair silicone, acrylic or monocouche systems such as K Rend.
Can you repair render in winter?
Only in the right conditions. Render shouldn’t go on in frost or heavy rain, so we plan outside repairs around the forecast.