How to Remove Render from a House: What Comes Off With It
Whether render can come off a wall has almost nothing to do with the render. It depends on what the render was stuck to, and on what the person who put it on did to the brick first. The wall decides. We've stripped cement render off a 1900s terrace in Levenshulme and found red brick underneath that needed nothing more than repointing. We've also opened a test panel on a 1930s semi in Sale, seen the face of the brick come away with the render, and told the owner to stop right there.
Both were sand and cement render. Both were hollow when you tapped them. One was a two-day strip, the other would have been a wrecked wall.
Can render be removed at all?
Usually, yes. The question is what you're left with, and that splits into three cases which come up again and again across Greater Manchester.
The first is cement render over sound, hard-fired Victorian or Edwardian brick. Most of the terraced stock in Chorlton, Levenshulme, Salford and the older parts of Stockport is this. The brick was made to be seen, it's dense, and cement render bonded to it badly in the first place, which is exactly why it's failing now and why it comes away so cleanly when you start on it. It comes off in sheets. You get the original brick back, minus some pointing.
The second is render over soft brick or over old lime-pointed work. Common brick from small local yards, the pale under-fired stuff you see on rear elevations and on cheaper 1920s and 1930s builds, has a face that's only a few millimetres thick. Render bonded well to it. Take the render off and the brick face comes with it. What you expose isn't brickwork, it's the crumbly core of the brick, and it now has to be rendered again to keep the weather out.
The third is render over blockwork or over brick that was never a facing brick. Any 1960s or later house that was rendered from new, most extensions, and plenty of gable ends. There's nothing underneath worth looking at. Removal here only makes sense if the old render has failed and a new system needs a clean substrate, and even then we'll often take off only what's loose and hollow rather than the lot.
Stone is its own case. On gritstone terraces in Marple Bridge, Saddleworth and Bollington, a lime render is often original and part of how the wall sheds water. Cement render over stone can be removed, but the stone underneath is soft, the joints are wide, and repointing in lime afterwards is not optional.
How render is actually stripped
We start with a test panel, about a square metre, low down on the least visible elevation. That panel tells us more than any survey from the pavement. Twenty minutes with a hammer and bolster shows how the render is bonded, what the brick face is doing underneath it, and whether the pointing survives the process or crumbles out with the first strip. Sometimes it looks bad. Then we stop, fill it, and have a different conversation about the wall.
If it looks good, the job runs top down. On a well-bonded cement render we use a breaker with a wide chisel bit, held at a shallow angle so the tool runs along the wall rather than into it. On hollow, blown render, which is most of what we're asked to remove, a hand bolster does most of the work and a breaker just gets in the way. The debris is heavy. A three-bed semi's front elevation fills a skip on its own, and the rear usually fills a second.
Once the render is off, the wall gets raked out and brushed down, and we look at it properly for the first time, which is also the first time the owner sees what they've actually bought. That's when the pointing gets assessed, damaged brick faces get counted, and anything the render was hiding gets found. Old doorways bricked up with breeze block. Lintels that have been rusting for thirty years. A patch of cavity that somebody filled with foam. None of it shows at survey, because the survey was looking at render.
Then the wall has to dry. A solid wall that's been sealed under cement for forty years holds a lot of moisture, and putting a new render on it before it has dried out is how you get blown render on a brand new job. We allow two to four weeks, longer in winter, and we check it with a meter rather than by guessing.
Removing render without damaging the brick
This is the part people ask about most, and the honest answer is that it can't always be done. The technique matters, but the wall decides.
The counter-intuitive bit is that badly failed render is the safe kind. If it sounds hollow across most of the wall, the bond to the brick has already gone, and it lifts off with very little force. The dangerous render is the stuff that's still stuck fast. Good bond, bad news. A well-bonded cement render on a soft brick will not separate cleanly, and the more force you put through the chisel to persuade it, the more brick face comes away with each piece.
So the method is about force and angle, not speed. Wide chisel, shallow angle, working along the render rather than into the wall, and stopping the moment a brick face starts to lift. On a good Victorian wall we'd expect to lose the face on perhaps one brick in ten, mostly around the reveals and at the base where the render was thickest. Those get cut out and replaced with reclaimed brick to match, which is a normal part of the job rather than a failure of it.
Where we've got it wrong in the past is on walls that had been keyed before rendering. Some contractors in the 1970s and 1980s went over a wall with a hammer and scored every brick to help the render grip. It worked. It also means that wall can never be exposed again, because every brick is scarred. We've opened a test panel on a house in Withington, seen the scoring, and had to tell the owner that the exposed brick front they wanted wasn't there to be had. The render came off anyway, because it had failed, but the wall went straight back under a new system.
What's usually underneath, and what it looks like before and after
Three jobs, three different outcomes, all within a few miles of each other.
A mid-terrace in Chorlton, cement rendered in the 1980s, blown across the whole front. Underneath: hard red brick in good order, lime pointing mostly gone. Two days to strip, four days to repoint. The owner kept the brick. That's the job everyone imagines when they search for render removal, and honestly it's maybe one in four of the ones we do, because most rendered walls were rendered for a reason.
A 1930s semi in Sale, rendered on the front only, with the sides in fair-faced brick. The owner assumed the front matched the sides. It didn't. Builders of the time used cheaper common brick on elevations they intended to render, and the test panel showed a soft, pale brick with no face worth keeping. The render came off because it was failing, the wall was repointed and dried, and a silicone system went on. From the street it looks like a new render. That's the point.
A gable end in Wythenshawe, rendered from new in the 1960s over blockwork. Half the render had blown after the flashing failed at the roofline. Nothing to expose. We removed the loose half, sounded the rest, left what was sound, and put a new system over a bonded patch, which is a perfectly normal repair on a blockwork wall and nothing to be nervous about. Stripping the whole gable would have cost the owner a skip and two days for no benefit.
We'll add photographs of each stage to this page as jobs come through. If you're weighing up removal and want to see what a stripped wall looks like at the ugly middle stage, before repointing, ask and we'll send some.
What render removal costs
Removal is priced separately from rendering, and it's the part that catches people out when they compare quotes. Our rendering cost guide goes through the full numbers, but the shape of it is this: budget £20 to £60 per square metre for stripping, rising towards £85 on awkward or scored walls, plus skip hire at £150 to £300 per skip, plus whatever the brickwork needs once it's exposed.
That last item is the variable. On Manchester terraces, roughly one job in three turns up brick repairs that weren't visible at survey. A quote that gives you a price for removal and says nothing about repointing or brick replacement isn't a complete quote, it's the first half of one, and the second half arrives as a variation invoice once the wall is open. Ask what happens if the wall behind is in poor condition, and ask for the day rate that would apply. Get it in writing before anyone lifts a hammer.
What pushes the cost up is exactly what you'd expect. Height, because scaffolding. Access, because a rear elevation over a conservatory takes twice as long as an open front. Substrate, because scored brick or soft stone slows the whole thing down. And whether a new render follows, because if it does, the removal is priced as preparation for that job rather than as a job on its own, which usually works out cheaper overall. Removal on its own, with the brick left exposed and repointed, is the cheaper project on paper. It only stays cheaper if the brick turns out to be worth keeping, and that's the test panel's job to find out before the skip arrives.
After removal: keep the brick, or render again?
Most people go into this hoping to keep the brick. On the right wall it's the better result, and it's cheaper than re-rendering. The brick needs repointing, usually in a lime mortar on anything pre-1930 so the wall can breathe, and the reveals and sills need attention where the old render was cut back. Sealing the brick afterwards is a mistake on a solid wall. It traps moisture. If a wall needs sealing to survive, it needed rendering.
On most of the walls we open, though, the brick underneath was never meant to be seen, or has lost too much face to be left exposed. Then the question becomes what goes back on. Not cement. We've written about why cement render fails on Manchester's Victorian terraces and it applies with double force to a wall that's just been stripped and is still drying out. A breathable silicone rendering system over a mesh basecoat is what we specify on nearly all of them, and if the wall is a cold solid one, this is also the moment to consider external wall insulation, because the render has to go back on anyway and the insulation board adds one step rather than a whole second job.
Pebbledash is a slightly different animal. The aggregate makes it heavier and messier to strip, and it was almost always put on to hide poor brick. We've covered it separately in our guide to pebbledash removal in Manchester.
Before you book anyone
Ask for a test panel before a price. A contractor who quotes render removal without opening the wall is guessing, and you'll pay for the guess later. Ask what's in the price: stripping, disposal, repointing, brick replacement, and drying time before any new finish. Ask what happens if the brick turns out to be soft. And ask whether they'll tell you to stop if it does, because on some walls that's the right answer, and not every firm will say so once the skip has been ordered.
We do this work across Greater Manchester and Cheshire as a service in its own right, not as a favour bolted onto a rendering quote, and the survey is free. If you'd rather have it done than read about it, our render removal service page has the details and a form