Cracked, blown or water-damaged plaster is a common sight in many Bristol homes, especially in older properties. From hairline cracks appearing in a Victorian terrace to damp causing plaster to bubble, these issues are more than just cosmetic; they can point to underlying problems.

Dealing with plaster failure correctly is key to a lasting finish. At Gents Venetian Plastering, we specialise in diagnosing and carrying out the right type of plaster repair for Bristol homes, ensuring the problem is fixed properly the first time.

Signs Your Plaster Needs Repairing

A hollow sound when you tap the wall is the clearest sign of ‘blown’ plaster. This means the plaster has lost its bond with the wall behind it. You can easily perform a tap test yourself; a solid sound means good adhesion, while a hollow, papery sound indicates a problem.

Cracks are another obvious sign. While fine hairline cracks might just be settlement, wider, jagged cracks that keep returning suggest a more significant issue. Bubbling, flaking, or soft, spongy plaster is a definite red flag for moisture issues that need investigating.

Finally, look for discolouration or persistent damp patches. These stains often indicate a slow leak or rising damp that has compromised the plaster from behind. Simply painting over it will not solve the problem.

Types of Plaster Repair in Bristol

The right repair method depends entirely on the cause and extent of the damage. Here are the most common types we handle in Bristol.

Patch Plastering

Patch plastering is for isolated damage, like holes left after electrical work, small impact damage, or minor blown sections. We cut back to a solid edge, apply a bonding coat to build up the depth, and finish with Thistle Multi-Finish for a seamless surface. Often, this targeted repair means you can avoid the cost of a full re-skim. For a perfect finish, it’s best to use a professional plastering service.

Blown Plaster Repair

Blown plaster has completely separated from the wall. This is common in pre-1940s Bristol properties where original materials fail over time or damp has penetrated the wall. The only correct fix is to hack off all the loose material back to the brick or blockwork, treat the underlying cause, and apply a new backing and skim coat. Skimming over blown plaster is a false economy as it will quickly fail again. This is often linked to damp problems.

Crack Repair

For minor hairline cracks, we can rake them out, fill them, and apply a local skim coat. However, for wider, recurring cracks, it’s vital to investigate the cause first, which could be structural movement. In these cases, we may need to apply mesh tape over the crack before plastering to provide extra strength. If cracks are extensive, a full re-skim is often the better, more durable solution. You can read more about what to look for in a plasterer in our articles.

Water Damage Plaster Repair

After a leak, the wall must be allowed to dry out completely, which can take 4-6 weeks or more. Once dry and the source of the water is fixed, the damaged plaster must be hacked off. We then apply a specialist salt-neutralising render before re-plastering. Skimming over damp plaster is a guaranteed failure; the moisture will get trapped and cause the new plaster to blow and bubble. Our team can also help identify and resolve the source of the damp.

Artex Ceiling Repair and Removal

Common in Bristol homes built or updated between the 1960s and 1990s, Artex can be repaired or removed. For minor cracks, we can patch the area. For a modern, smooth finish, we scrape back the high points, apply a bonding agent like PVA, and then apply two coats of Thistle Multi-Finish over the entire ceiling. It’s important to note that Artex applied before 2000 may contain asbestos, so a test is essential before any work begins. We can help you achieve a smooth, modern finish.

Lath-and-Plaster Repair

Found in most of Bristol’s Victorian and Edwardian terraces, lath-and-plaster consists of lime-based plaster applied over thin timber strips (laths). When it fails, it often comes away in large sections. We can perform patch repairs using lime-compatible materials to maintain the wall’s breathability. For larger failed sections, we can replace the laths and apply a new three-coat lime plaster system, preserving the character of your period property.

Patch Repair vs Full Re-Skim: How to Decide

A patch repair is usually sufficient if the damage is isolated to one area, covers less than about 30% of the wall, and the surrounding plaster is solid. This is a cost-effective way to fix minor holes and scrapes.

A full re-skim is the better option if the plaster is widely blown, has multiple cracks, or has been affected by damp. It’s also the only way to guarantee a perfectly uniform finish, as even the best patch can sometimes be visible under certain lighting. Trying to patch a heavily damaged wall is often not worth it.

Ultimately, the best way to know for sure is to have a professional look at the wall. We can assess the substrate and give you a clear recommendation during a site visit. Get in touch for a free quote.

Our Plaster Repair Process

We follow a clear, four-step process for every repair job, from the initial assessment to the final clean-up.

Step 1: Assessment and Quote

It starts with a site visit to properly assess the damage, check the wall substrate, and look for any signs of damp. Based on this, Gents Venetian Plastering provides a detailed, fixed-price quote so you know exactly what the cost will be with no surprises. You can request your free quote here.

Step 2: Surface Preparation

This is the most critical step. We sheet up the area to protect your home, then hack off any loose or blown plaster. The exposed surface is brushed down to remove dust, and a coat of PVA is applied and left to go tacky. This creates a strong mechanical key for the new plaster to bond to. See examples of our work on our projects page.

Step 3: Backing and Bonding Coats

For deeper repairs, a backing coat is needed to build the surface level. We use trade-grade British Gypsum materials like Bonding Coat for low-suction backgrounds or Hardwall for masonry. This coat is ruled flat and left to set before the final skim, ensuring a perfectly flat wall. This is a key part of our specialist plastering service.

Step 4: Finish Skim and Clean-Up

We apply two coats of British Gypsum Thistle Multi-Finish. This is trowelled, floated, and polished to a smooth, flat surface ready for painting. Throughout the job, we use protective sheets, and we always leave the area clean and tidy once we are finished. You can see the quality of our finishes in our gallery.

Why Use a Specialist in Bristol?

DIY plaster patches often fail or look obvious. This is usually due to poor preparation or using the wrong materials, resulting in a visible join that stands out once painted. A specialist knows how to blend the repair for an invisible finish.

More importantly, if the plaster failure is caused by damp, a general handyman might just cover it up. A specialist will insist on fixing the root cause first. Without this, any new plaster is guaranteed to fail. As British Gypsum Certified Plasterers, we use the right materials and techniques for a durable, long-lasting repair.

At Gents Venetian Plastering, we provide fixed-price quotes, use only trade-grade British Gypsum materials, and have extensive experience with Bristol’s period properties. As a small specialist team, we do get booked up, so we recommend getting in touch early.

Areas Covered

We provide plaster repair services across Bristol and Bath. Our local team covers Clifton, Redland, Horfield, Bishopston, Cotham, Easton, Bedminster, Kingswood, Bradley Stoke, Yate, Keynsham and all surrounding areas.

We believe in providing accurate, fair pricing, which is why we conduct a site visit before every quote. This ensures there are no hidden costs and that we have specified the correct repair for your home. Contact us to arrange a visit.

Frequently Asked Questions

How much does plaster repair cost in Bristol?

A small patch repair can cost between £80-£150. A full wall re-skim typically ranges from £150-£400, and a full room can be £400-£900+. Costs vary depending on the extent of the damage, access, and materials needed. We provide a fixed-price quote after a site visit. Get a free quote today.

Can you patch repair without re-skimming the whole wall?

Yes, if the damage is isolated and the surrounding plaster is sound, a patch repair is often possible. However, there is always a small risk of the join being visible after painting, which we will explain during the assessment. For a guaranteed perfect finish, a full re-skim is best.

How long does plaster repair take?

A patch repair can often be done in half a day to a full day. A single wall re-skim usually takes one day, while a full room might take 1-2 days. Remember, new plaster needs to dry for at least 2-4 weeks before you can decorate. See our past projects for examples.

Do I need to treat damp before replastering?

Yes, always. Plastering over active damp is a waste of money as the new plaster will fail. The source of the moisture must be identified and fixed first. Gents Venetian Plastering offers a specialist damp proofing service to resolve these issues correctly.

Does plastering create a lot of mess?

Dust is an unavoidable part of plastering, but we take great care to minimise it. Gents Venetian Plastering uses protective sheets on all surfaces and cleans up thoroughly at the end of each day to minimise disruption to your home.