Will removing paint damage the bricks?

Not with the right method. Poultice and superheated steam systems lift the coating without abrading the face. Sand or grit blasting will always damage brick and should never be used on a period house.

Will the wall need repointing afterwards?

Very often, yes. Paint is frequently applied to disguise failing pointing rather than fix it. We assess the joints once the wall is clean and quote the repointing separately.

Is it worth removing paint from a period house?

In conservation areas and on period frontages, almost always. It returns the elevation to the material it was designed to be, lets the wall breathe again, and transforms how the house presents.

Advice

How to remove paint from brickwork

Name: Richmond Repointing
Address: Richmond, South West London, London, GB
Telephone: 07956 520733

Painted brickwork is one of the most common things we are asked to reverse in Richmond and Twickenham. Getting the paint off safely is entirely possible. Getting it off badly destroys the face of every brick on the elevation, permanently, and there is no way back from that.

Why painted brick is a problem

Brick and lime mortar are designed to let moisture move out of the wall. Modern masonry paint seals the outside face, so water that gets in, through a gap, a failed gutter or simply from below, has nowhere to go. It sits in the brick, freezes, and pushes the face off.

That is why painted elevations so often hide spalled brickwork and internal damp. The paint is usually a symptom: somebody painted the wall instead of repairing it.

Poultice systems

A poultice is a paste applied over the paint, left to dwell, then peeled or washed away with the softened coating attached. It works chemically rather than abrasively, so it does not touch the brick face, and it is the most reliable method for thick modern masonry paint and multiple layers.

Dwell times vary with the coating and the weather, and stubborn areas sometimes need a second application. It is slower than the alternatives and it is usually the right answer anyway.

Superheated steam (DOFF and ThermaTech)

These systems use water at high temperature but very low pressure. The heat does the work, not the force, so soiling, limewash and thinner coatings lift off without abrading the brick. They are widely accepted on listed and conservation-area buildings for exactly that reason.

Steam is excellent on limewash, distemper and general soiling, and on some paints. Against heavy modern acrylic masonry paint it is often used alongside a poultice rather than instead of one.

What never to use

Sand and grit blasting take the fired outer skin off the brick along with the paint. What is left is a soft, open, porous surface that soaks up water and weathers far faster than the original ever did. It cannot be undone.

High-pressure jetting does the same thing more slowly and drives litres of water into the wall while it works. Aggressive acids can burn and stain brick and attack the mortar. If somebody offers to blast your Victorian frontage clean, get somebody else.

What you will find underneath

Always insist on a test patch before committing to a whole elevation. It shows how the coating responds, how many layers there are, and what condition the brick beneath is actually in.

Expect to need some repointing afterwards, because the joints under paint are usually the reason it was painted. Some brick replacement is common too where faces have already spalled behind the coating. Budget for the wall as a whole rather than for paint removal alone, and the finished elevation will look like the house was always meant to.

FAQ

How to remove paint from brickwork - common questions

Most can. How long it takes depends on the number of coats and the type of paint. We always do a test patch first so you can see the result on your own brickwork before committing.

Related services

The work behind this article

Brick Repointing Brick Cleaning Paint Removal

Repointing Richmond Repointing Twickenham Repointing Teddington Repointing Hampton Repointing Kingston upon Thames Repointing Wimbledon

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