Can you plaster over artex? What you need to know before starting

Can you plaster over artex without removing it first? This is a question that homeowners across Kent and Bromley frequently ask when planning renovation projects. The straightforward answer is yes, you can plaster over artex, but like many plastering tasks, it’s not always advisable in every situation. Understanding when plastering over artex makes sense and when removal is the better option can save you time, money, and potential headaches down the line.

Can you plaster over artex? The complete guide

The question of whether you can plaster over artex doesn’t have a simple one-size-fits-all answer. Professional plasterers in Kent evaluate multiple factors before recommending the best approach for each unique situation. These include the artex’s age, condition, texture depth, and whether asbestos might be present.

For many homeowners and property developers in Bromley and throughout Kent, plastering over artex represents an efficient renovation solution. It saves time compared to complete removal and delivers the smooth, contemporary finish that modern buyers expect. However, taking this approach without proper assessment can lead to disappointing results and costly remedial work.

The key to success lies in understanding when covering artex is appropriate and when removal becomes the wiser investment. This comprehensive guide examines both scenarios to help you make an informed decision for your specific project.

What is artex and why was it so popular?

Artex is a textured coating material that dominated British interior design from the 1960s through the 1980s. Composed of gypsum plaster mixed with additives to create various decorative patterns, it offered an affordable way to add visual interest to ceilings and walls. The material could be applied in numerous patterns including stipple, swirl, and peaked designs.

During its heyday, artex served multiple practical purposes beyond aesthetics. It effectively concealed imperfections in plasterwork, provided some acoustic dampening, and was considered modern and stylish. Many homes built or renovated during this period feature artex in living rooms, bedrooms, and hallways.

The material’s popularity stemmed from its cost-effectiveness and ease of application compared to traditional ornamental plastering. Property developers could finish homes quickly whilst giving them a distinctive character. This explains why millions of UK properties still feature artex ceilings and walls today, particularly in areas like Kent where housing stock includes many properties from this era.

The asbestos concern with older artex

Here’s what every homeowner and contractor must understand: artex manufactured before 1985 may contain asbestos fibres. Chrysotile (white asbestos) was commonly added to artex formulations to improve strength and fire resistance. This creates serious health and safety implications when renovating older properties.

You cannot determine whether artex contains asbestos simply by looking at it. The only reliable method is professional laboratory testing of samples. If your property was built or renovated before the mid-1980s, you must assume artex potentially contains asbestos until testing proves otherwise.

Disturbing asbestos-containing artex releases harmful fibres into the air, posing significant health risks including lung disease and cancer. UK law requires licensed professionals to remove asbestos-containing materials in most circumstances. Simply plastering over confirmed asbestos artex, whilst potentially permissible if done without disturbance, doesn’t eliminate the long-term liability.

Professional plasterers in Tunbridge Wells and across Kent understand these regulations thoroughly. They can arrange proper testing and, if necessary, coordinate with licensed asbestos removal contractors before proceeding with plastering work. This protects both your health and your legal position as a property owner or developer.

When plastering over artex makes sense

Several scenarios exist where applying plaster directly over artex represents the most practical and cost-effective solution. Understanding these situations helps homeowners and developers make informed decisions that balance quality, budget, and timeline considerations.

The decision ultimately depends on three primary factors: the condition of existing artex, the type and depth of texture present, and your specific project constraints. When these factors align favourably, plastering over artex delivers excellent results that can last for decades.

Condition of the existing artex surface

Well-adhered artex provides a suitable substrate for plastering when it remains firmly attached to the underlying surface. Before proceeding, professional plasterers conduct a thorough assessment by pressing various areas and listening for hollow sounds that indicate detachment. Firmly bonded artex with no signs of moisture damage or crumbling passes this critical test.

Conversely, artex showing signs of deterioration requires removal rather than covering. Loose areas, flaking sections, or water-stained artex indicates underlying problems that plastering over will simply conceal temporarily. These issues inevitably resurface, causing the new plaster to crack or detach within months or years.

The substrate beneath the artex matters equally. If applied over old plasterboard or lime plaster in good condition, covering becomes viable. However, artex applied over already-failing surfaces compounds the problem. Professional assessment distinguishes between cosmetically poor artex that’s structurally sound and genuinely compromised surfaces requiring complete renovation.

Type and depth of artex texture

Not all artex patterns present equal challenges when plastering over them. Fine stipple textures typically measure 1-3mm in depth and can be successfully covered with proper preparation and a two-coat plastering system. These shallow textures allow plasterers to build up a level surface without excessive material application.

Medium swirl patterns, measuring 3-6mm deep, require more substantial preparation and thicker base coats. Whilst still manageable, these patterns demand greater skill and material to achieve a perfectly smooth finish. Experienced plasterers can handle these textures, but the process takes longer and costs more than covering fine stipple.

Deep artex patterns present significant challenges:

• Peaked or ‘artex mountain’ patterns – often 10-20mm deep, requiring excessive plaster build-up that adds substantial weight
• Heavy swirl designs – creating irregular depths that telegraph through even multiple plaster coats
• Combination textures – mixing different pattern depths that prove nearly impossible to level effectively

For these deep textures, overboarding with plasterboard before skimming or complete artex removal delivers superior results. The additional cost proves worthwhile compared to fighting against deeply textured surfaces that resist smooth finishing.

Budget and time considerations

Property developers and homeowners working within tight financial constraints often find plastering over artex attractive. This approach typically costs 40-60% less than complete removal and replastering when conditions suit covering. The time savings prove equally significant, with projects completing in days rather than weeks.

For rental properties or developments targeting mid-market buyers, these savings make commercial sense when artex condition permits covering. The resulting smooth finish meets market expectations whilst preserving profit margins. Multiple properties can be renovated simultaneously, accelerating project timelines.

However, short-term savings shouldn’t override quality considerations. Property developers working on high-end renovations or homeowners planning long-term residence often find that investing in complete removal delivers better value. This eliminates future concerns and provides the cleanest possible starting point for premium finishes.

The professional approach to plastering over artex

Achieving professional results when plastering over artex requires specific techniques and thorough preparation. Experienced plasterers in Kent follow proven methodologies that ensure durability and aesthetic quality, avoiding the common pitfalls that plague DIY attempts.

The process differs significantly from standard skimming work. Artex’s textured surface and different absorption properties demand adapted approaches that account for these unique characteristics. Shortcuts during preparation or application invariably lead to problems that emerge weeks or months later.

Essential preparation steps

Surface preparation determines success or failure when plastering over artex. Professional plasterers begin by thoroughly cleaning the artex to remove dust, grease, and any loose material. This ensures optimal adhesion for subsequent coats and prevents contamination that could cause delamination.

Next comes application of a suitable bonding agent or PVA solution. This critical step seals the artex surface and provides a consistent substrate for plastering. Two coats of diluted PVA (typically 3:1 water to PVA ratio) are applied, with the second coat still tacky when plastering begins. This creates the ideal bonding window.

Any loose or hollow areas must be addressed before proceeding. These sections require either repair or removal and filling. Professional plasterers never simply plaster over known defects, as these weak points inevitably fail later. The integrity of the entire surface depends on addressing these issues properly.

Finally, plasterers assess whether a scratch coat is needed. For deeper textures, applying a thin base coat that’s scratched before setting provides mechanical key for subsequent layers. This traditional technique remains relevant when dealing with challenging artex patterns.

The two-coat method for best results

Most professional plasterers employ a two-coat system when covering artex to achieve the smooth, contemporary finish that homeowners and buyers expect. The base coat (also called the floating coat) serves to build up and level the surface, filling the valleys between artex peaks and creating a relatively flat substrate.

This first coat typically uses browning plaster or bonding compound, which provides good build-up properties and strength. Applied at 6-10mm thickness depending on artex depth, it’s ruled off to create a level surface. The coat isn’t finished smooth but rather left with a slightly rough texture to provide key for the final layer.

After the base coat has set but not fully dried (usually 2-4 hours depending on conditions), the skim coat is applied. This uses finishing plaster worked to a smooth, flawless surface through multiple trowel passes. Two thin skim coats of 2mm each deliver better results than one thick coat, as they’re easier to control and less prone to cracking.

The entire process requires skill developed through years of experience. Timing proves crucial – applying coats too early or late affects adhesion and workability. Temperature and humidity must be monitored, with adjustments made to maintain ideal working conditions throughout the process.

Alternative approach: Plasterboard over artex

In situations where artex texture is particularly deep or its condition questionable, overboarding with plasterboard provides superior results. This technique involves fixing 9.5mm or 12.5mm plasterboard directly over the existing artex, creating a completely level substrate for skimming.

The plasterboard is typically fixed using either dot-and-dab adhesive method or mechanical fixings to ceiling joists (for ceilings) or wall studs. This creates a fresh, flat surface that eliminates all concerns about artex texture, condition, or potential asbestos content. A single 2mm skim coat then delivers a perfect finish.

Benefits of this approach include:

• Complete elimination of texture telegraphing through the finished surface
• Improved thermal insulation from the additional plasterboard layer
• Enhanced soundproofing between rooms or floors
• Peace of mind regarding artex condition and potential asbestos content
• Faster completion compared to extensive base coat build-up

The main drawback is reduced ceiling height, typically 15-20mm including plasterboard and skim. In properties with already low ceilings (under 2.3m), this reduction can create a noticeably oppressive feel. However, for rooms with standard or high ceilings, the loss proves negligible compared to the quality benefits gained.

When removing artex is the better option

Despite the convenience and cost savings of covering artex, numerous scenarios exist where removal represents the wiser long-term investment. Recognising these situations prevents false economy that creates bigger problems down the line.

Professional plasterers in Kent can identify warning signs during initial assessment that indicate removal is necessary. Homeowners and developers should understand these factors when planning renovation budgets and timelines, as attempting to cover problematic artex rarely delivers satisfactory outcomes.

Signs your artex needs removing

Loose or flaking artex must be removed rather than covered – this is non-negotiable for quality work. Testing involves firmly pressing across the entire surface and listening for hollow sounds. Any movement or give indicates poor adhesion that will eventually cause overlying plaster to fail.

Water damage presents another clear indicator for removal. Staining, discolouration, or softened areas show that moisture has compromised the artex structure. Even if currently dry, these sections have lost integrity and won’t provide stable substrate for plastering. The underlying cause of water ingress must also be addressed before any replastering.

Extremely deep textures (over 10mm) present practical challenges that make removal more economical than covering. The volume of plaster required to level such surfaces adds substantial weight, stresses existing substrates, and costs more in materials and labour than removal. Additionally, achieving truly smooth results over very deep textures proves extremely difficult even for experienced plasterers.

Cracking or previous repairs indicate structural movement or substrate problems. Simply covering these issues with plaster doesn’t address root causes. Professional assessment can determine whether underlying problems require attention before any covering or removal takes place.

Ceiling height and room proportions

Adding plaster layers or plasterboard over existing artex reduces ceiling height by 10-25mm depending on method used. In rooms with generous ceiling heights (2.4m+), this reduction passes unnoticed. However, properties with already low ceilings suffer from further height reduction, creating spaces that feel oppressive and claustrophobic.

This consideration particularly affects period properties, basement conversions, and some 1960s-70s builds where ceiling heights hover around the 2.3m mark. Even 20mm reduction becomes perceptible in these spaces, potentially affecting property value and marketability. Estate agents and buyers notice when rooms feel cramped or lack vertical space.

Property developers targeting high-end markets should especially consider this factor. Premium buyers expect proper room proportions and generous ceiling heights. Removing artex rather than covering it preserves these valuable characteristics whilst still achieving the smooth finish that contemporary markets demand.

Planning permissions and building regulations occasionally impose height restrictions, particularly in conversions or extensions. Any reduction in ceiling height must be verified against these requirements to ensure compliance. Professional plasterers can advise on which approach maintains regulatory compliance whilst achieving desired finishes.

Long-term property value considerations

When renovating properties for sale or long-term ownership, complete artex removal often represents the best investment despite higher upfront costs. This approach eliminates all future concerns about what lies beneath the plaster, providing clean slate for premium finishes that discerning buyers value.

High-end property developers targeting premium markets find that buyers increasingly question covered artex during surveys and viewings. The possibility of asbestos content, even if safely encapsulated, creates anxiety that can derail sales or reduce offers. Complete removal with appropriate certification eliminates these concerns entirely.

From a sustainability perspective, removal allows proper assessment and upgrade of underlying substrates. Older plasterboard or lime plaster may benefit from replacement with modern, more efficient materials. This opportunity is lost when simply covering existing artex, potentially missing chances to improve thermal performance or soundproofing.

Long-term maintenance considerations also favour removal. Plaster applied over sound substrate typically lasts 50+ years without issues. Plaster over artex, whilst potentially durable, introduces additional variables that could affect longevity. For homeowners planning decades of residence, investing in complete removal provides peace of mind and eliminates future remedial work.

Common mistakes to avoid when plastering over artex

Even experienced DIY enthusiasts encounter problems when attempting to plaster over artex without professional expertise. Understanding these common pitfalls helps homeowners appreciate why professional plastering delivers superior value despite higher initial costs.

Many of these mistakes prove expensive to rectify, often requiring complete removal and restart. The false economy of DIY attempts or choosing inexperienced contractors frequently results in spending more overall than hiring qualified plasterers initially would have cost.

Insufficient surface preparation

Skipping or rushing preparation steps causes the majority of artex covering failures. Inadequately sealed surfaces lead to inconsistent suction that makes plaster application difficult and affects final adhesion. Areas with high suction pull moisture from plaster too quickly, preventing proper setting and creating weak spots prone to cracking.

Failing to remove dust, grease, or loose material before applying bonding agents similarly compromises adhesion. Even microscopic contamination prevents proper bonding between artex and plaster layers. Professional plasterers meticulously clean surfaces and apply appropriate sealers to ensure optimal conditions for subsequent work.

Neglecting to test for loose areas represents another critical oversight. Hollow-sounding sections must be addressed before covering, either through repair or removal. Plastering over known defects simply delays inevitable failure, wasting materials and labour whilst creating bigger problems to fix later.

The temptation to skip PVA application to save time or money proves particularly costly. This bonding agent creates the chemical and mechanical key that ensures plaster adheres properly to artex’s smooth, sealed surface. Without it, even expertly applied plaster may delaminate within months, requiring complete removal and restart.

Attempting to cover deep textures in one coat

Inexperienced plasterers frequently attempt to achieve smooth finishes over heavily textured artex using single thick coats. This approach rarely succeeds and creates multiple problems. Thick single coats are prone to cracking, slumping, and uneven drying that compromise both appearance and structural integrity.

The physics of plaster setting work against thick applications. As material cures, it generates heat and undergoes chemical changes that cause shrinkage. In thick sections, differential shrinkage between surface and interior creates internal stresses that manifest as cracks. These may appear immediately or develop over subsequent weeks.

Additionally, deep artex textures create varying plaster depths across the surface – thin over peaks, thick in valleys. This inconsistency makes achieving smooth finishes extremely difficult. The plaster trowels differently across these varying depths, creating wavy, uneven surfaces that require extensive correction.

Professional plasterers understand that patience delivers better results. Building up surfaces gradually through multiple coats allows each layer to cure properly before adding the next. This methodical approach takes more time but produces durable, crack-free finishes that justify the additional labour investment.

Cost comparison: Plastering over vs removing artex

Understanding the financial implications of each approach helps property developers and homeowners make informed decisions aligned with project goals and budgets. Costs vary based on numerous factors including room size, artex condition, accessibility, and location within Kent.

These figures represent typical ranges for professional work in the Bromley and Kent area. Exact costs depend on specific project circumstances and should be confirmed through detailed quotations from experienced plasterers.

Professional plastering over artex costs

Covering artex typically costs £15-25 per square metre for professional plastering services, depending on texture depth and room complexity. A standard 4m x 4m ceiling (16 square metres) would therefore cost £240-400 for materials and labour. This assumes good artex condition requiring minimal repair before covering.

Additional costs may include:

• Surface preparation and repairs – £50-150 depending on extent of work needed
• PVA bonding agents and sealers – typically included in quoted rates
• Room preparation and protection – £30-50 for dust sheets and masking
• Decoration after plastering – £150-300 for professional painting of standard ceiling

For deeper textures requiring base coat build-up, costs increase to £25

Sources

[1] https://www.spiralseatarot.com/numerology
[2] https://www.russellrowe.com/numerology/cheat-sheet-numbers.pdf
[3] https://free.messianicbible.com/feature/numbers-scripture-illuminate-bible-truth/