How Much Does It Cost To Decorate A Room In 2026? A UK Guide

The overall cost of room decoration is driven by preparation needs, specification level, and access conditions. What may look like a straightforward repaint can quickly become more substantial once surface repairs, skimming, woodwork preparation, and higher-spec finishes are factored in. So it’s important to understand the scope before outlining a realistic cost plan.

This article structures costs across three project types, allowing professionals to align design intent with budget from the outset and support feasibility studies, budget estimates, and early client conversations.

Decorating A Room In The UK

In this article, the costs are based on the following scope of work for a property with a gross internal floor area of 20m² (4m x 5m). Please note that costs associated with the treatment of damp, mould, or structural defects are excluded.

Here’s what’s included in the decoration projects covered in this article (unless expressed otherwise):

• Prelims: Laying dust sheets and applying window film; clearing the room of furniture, fixtures, and fittings.
• Prep: Filling and sanding walls, skirting, architraves, doors, and windowsills.
• Finish: Applying a mist coat and two coats of paint to ceilings and walls; undercoating and glossing skirting, architraves, doors, windowsills, and staircase.

In terms of build specification, BuildPartner gives you three broad options to choose from:

• Basic spec is a basic finish; e.g., Leyland, Everest, Wickes.
• Standard spec is a standard finish; e.g., Dulux, Hamilton, Slim Line.
• Premium spec is a high-spec finish; e.g., Farrow & Ball, Fine Line, Siemens.

In this article, we’ve provided a breakdown of the cost of decorating a home according to a standard specification. In addition, we have provided three different benchmarks to show the range of pricing you can expect among different contractors. These are: 

• Low benchmark: smaller companies are generally lower cost but less specialised and with low project management function; good for low/mid-spec projects and tight budgets.

• Mid benchmark: medium-sized companies offer a balanced mix of cost-effectiveness and specialisation; good for mid-range projects for effective execution within moderate budgets.

• High benchmark: larger companies generally have a higher cost base but can handle a wide variety of specialist tasks; good for mid/high-spec projects and project management.

The specification and benchmark you choose will have a major impact on the overall cost of decorating a room, so it’s important to align them with your budget and the finish you’re aiming for.

Cost to Fill, Sand, Mist Coat & x2 Top Coats A Room

Here’s a table showing the average costs of decorating a room in the UK, which includes filling holes, sanding, and applying a mist coat and two top coats:

Fill, Sand, Mist Coat & x2 Top Coats	Total Average Build Cost			Average Cost Per Sq Metre
	Low Benchmark	Mid Benchmark	High Benchmark	Low Benchmark	Mid Benchmark	High Benchmark
East Anglia	£1,976	£2,210	£2,425	£99	£110	£121
London	£2,193	£2,456	£2,717	£110	£123	£136
Midlands	£1,916	£2,090	£2,277	£96	£104	£114
North England	£1,893	£2,250	£2,401	£95	£112	£120
Northern Ireland	£1,910	£1,973	£2,149	£94	£99	£107
Scotland	£1,943	£2,119	£2,309	£97	£106	£115
South East	£2,164	£2,425	£2,671	£108	£121	£134
South West	£1,970	£2,279	£2,516	£100	£114	£126
Wales	£1,949	£2,179	£2,395	£97	£109	£120
Average	£1,990	£2,220	£2,429	£99	£111	£121

All costs exclude VAT, overheads, and profit.

Here’s what the data shows for the cost of filling holes, sanding, applying a mist coat, and applying two top coats:

• The minimum cost is £1,893, and the maximum cost is £2,717.
• The total average cost is £2,213, or £111 per square metre.

Cost To Mist Coat & Top Coat A Room (No Filling/Sanding)

Here’s a table showing the average costs of decorating a room in the UK, which includes applying a mist coat and one top coat (with no preparatory filling or sanding):

Mist Coat + 1 Top Coat (No Filling/Sanding)	Total Average Build Cost			Average Cost Per Sq Metre
	Low Benchmark	Mid Benchmark	High Benchmark	Low Benchmark	Mid Benchmark	High Benchmark
East Anglia	£1,374	£1,536	£1,686	£69	£77	£84
London	£1,525	£1,708	£1,889	£76	£85	£94
Midlands	£1,332	£1,453	£1,583	£67	£73	£79
North England	£1,316	£1,564	£1,670	£66	£78	£83
Northern Ireland	£1,328	£1,372	£1,494	£65	£69	£75
Scotland	£1,351	£1,474	£1,606	£68	£74	£80
South East	£1,504	£1,686	£1,857	£75	£84	£93
South West	£1,370	£1,584	£1,749	£69	£79	£87
Wales	£1,355	£1,515	£1,665	£68	£76	£83
Average	£1,384	£1,544	£1,689	£69	£77	£84

All costs exclude VAT, overheads, and profit.

Here’s what the data shows for the cost of applying a mist coat and one top coat (with no preparatory filling or sanding):

• The minimum cost is £1,316, and the maximum cost is £1,889.
• The total average cost is £1,539, or £77 per square metre.

Cost To Single Coat A Room Only

Here’s a table showing the average costs of decorating a room in the UK, applying a single coat of paint to all surfaces:

Single Coat Only	Total Average Build Cost			Average Cost Per Sq Metre
	Low Benchmark	Mid Benchmark	High Benchmark	Low Benchmark	Mid Benchmark	High Benchmark
East Anglia	£754	£843	£925	£38	£42	£46
London	£836	£936	£1,036	£42	£47	£52
Midlands	£730	£797	£868	£37	£40	£43
North England	£722	£858	£916	£36	£43	£46
Northern Ireland	£728	£752	£819	£36	£38	£41
Scotland	£741	£808	£881	£37	£40	£44
South East	£825	£925	£1,018	£41	£46	£51
South West	£751	£869	£959	£38	£43	£48
Wales	£743	£831	£913	£37	£42	£46
Average	£759	£847	£926	£38	£42	£46

All costs exclude VAT, overheads, and profit.

Here’s what the data shows for the cost of applying a single coat of paint to all surfaces:

• The minimum cost is £722, and the maximum cost is £1,036.
• The total average cost is £844, or £42 per square metre.

Average Cost To Decorate A Room In 2026

So, how much does it cost to decorate a room in the UK? Based on the three different project types covered in this article, you can expect decorating a room to cost on average (when using a mid-benchmark contractor):

• Fill, Sand, Mist Coat & x2 Top Coats: £2,220, or £111 per square metre.

• Mist Coat + Top Coat (No Filling/Sanding): £1,544, or £77 per square metre.

• Single Coat Only: £847, or £42 per square metre.

Please remember that these costs exclude a contractor’s overheads and profit and VAT. There may be additional costs, such as addressing unforeseen repairs, undertaking more extensive preparation, completing bespoke finishes, or accommodating access constraints.

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Start your free trial with BuildPartner today to get the most accurate estimate for decorating a room based on your own dimensions and specifications.

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FAQs About Room Decoration Costs In The UK

Here are some frequently asked questions about home decoration costs in the UK.

Why do decorating quotes vary so much?

Some decorators price per room, while others charge a day rate, typically depending on the complexity of the work. Quotes can also vary due to differences in prep work, paint quality, labour rates, and whether ceilings, woodwork, or repairs are included. Naturally, larger rooms require more materials and labour time, which increases the overall cost of decoration. 

On top of this, scope can differ significantly between quotes. Some include walls only, while others cover ceilings, doors, and skirting boards, so it’s important to confirm exactly what’s included upfront.

Why does client-supplied paint and materials often increase the overall cost rather than reduce it?

Poor-quality or lower-spec paints often have weaker coverage, meaning more coats are needed to achieve a consistent finish. This increases labour time significantly and can quickly outweigh any perceived savings from supplying your own materials. 

And in most cases, decorators get trade discounts that make professional-grade materials cheaper than retail prices at stores like B&Q or Wickes; so a member of the public may end up paying more for a lower-spec product than a trade professional would for a higher-spec equivalent.

Is wallpapering more expensive than painting a room?

Yes, wallpapering is generally more expensive than painting. This is mainly due to higher material costs and increased labour time required for accurate alignment, cutting, and finishing. Wallpaper itself typically costs between £10 and £40 per square metre depending on quality and design, whereas paint is usually far cheaper to apply over the same area.

For example, a single coat of paint in a 50m² room typically costs around £300 including labour and materials. So wallpapering the same space using mid-range materials at around £15/m² can cost approximately £1,100 once labour and preparation are included.

Why do decorators charge more to paint timber-framed windows?

Painting timber-framed windows is often one of the more expensive decorating tasks because it is highly labour-intensive. Unlike flat walls, windows contain multiple edges, joints, glazing bars, sills, and hard-to-reach areas that require careful preparation and precise application.

In many cases, existing paint must be sanded back, defects repaired, and surfaces primed before painting can begin. Access can also have a significant impact on cost, particularly for upper-storey windows that require ladders, scaffolding, or specialist access equipment. As a result, labour costs typically account for a large proportion of the overall price.