When you think about painting your flat, the first question is usually: how much will it cost? But the answer is not a fixed number. The final budget depends on many variables that are not always obvious at first glance, and it is easy to underestimate the real cost if you are not clear about which factors are at play. We explain how to make a realistic estimate before asking for quotes, which items really influence the final price, and which details you should pay attention to avoid surprises halfway through the work.
The square metres to paint are not the floor area
One of the most common mistakes when calculating a budget is thinking that painting a 80 m² flat means painting 80 m². The square metres to paint are not the floor area, but the walls and ceiling. As a general rule, a flat has between 3 and 4 times more paintable surface than floor square metres. That is, an 80 m² flat can have between 240 and 320 m² of walls and ceilings to paint.
This completely changes the starting point. If you see a price of 8 € per square metre, do not multiply by floor metres: multiply by the real surface area to paint. A 90 m² flat may need a budget of 2,400 - 3,000 € for basic painting alone, before preparation or ceilings. Painting a flat costs between 5 € and 15 €/m² of painted surface, and for a standard 80 m² flat, this puts the budget between 800 € and 1,500 € with white plastic paint and walls in good condition1.
The condition of the walls can double the cost
The second variable that radically changes the budget is the condition of the surfaces. If walls need filling, sanding, or damp treatment before painting, the cost can increase by 40 - 80% compared to a smooth, well-maintained wall. Cracks, peeling, damp stains, or textured ceiling remnants cannot simply be covered by painting over: the surface must be prepared, and that takes time and materials.
Removing textured ceilings is the factor that drives up costs the most. Removing texture and smoothing a 80 m² flat can add between 1,500 € and 3,000 € to the budget, almost like painting the flat twice. If your flat has a textured ceiling and you want to make it smooth, that extra cost should be in your estimate from the start.
Other common problems that add to the budget: walls with damp that need prior treatment, dark colours that require primer or more coats of paint, and uneven surfaces that require more sanding and filling time. Before you start calculating, review the real condition of your walls room by room.
What internal factors change the price without you noticing
Beyond size and condition, there are day - to - day details that affect the budget and are not always taken into account. If ceilings need to be painted, their height can be another factor that increases the cost of painting a flat, and the budget rises when furniture needs to be moved, the floor protected, or work done in an occupied home.
Painting ceilings costs between 20% and 40% more per square metre than painting walls, because it requires more physical effort, more preparation time, and more care in the finish. If your flat has high ceilings or exposed beams, that time multiplies. If it is furnished, protecting and moving furniture adds hours of work that increase labour costs.
Another less visible but important factor: the number of coats needed. The number of coats of paint, whether dark colours need to be covered, and the type of paint (plastic, washable, damp - resistant, or microcement) are also factors that influence the price of painting your flat. A dark colour may need three coats instead of two, and that translates into more paint and more time.
How to make your own estimate before asking for quotes
To calculate a realistic starting figure, follow these steps:
- Measure the real paintable surface, not just the floor. Multiply your flat's useful metres by 3.5 as an average (or by 3 if ceilings are low, by 4 if they are high).
- Define the condition of the walls. Are they smooth and in good condition, do they have minor imperfections, or do they need major repair? Is there a textured ceiling?
- Decide whether you will paint ceilings or just walls. Ceilings add surface area and extra cost due to difficulty.
- Note whether the flat is furnished or empty. An occupied flat adds protection time and furniture movement.
- Apply a price range per square metre according to your case. Painting work prices in Spain during 2026 generally range between 6 and 20 €/m² for standard interior painting, although they can exceed 50 €/m² for special decorative finishes2.
With that data you can make a starting estimate. Example: 70 m² flat, walls in good condition, two coats of plastic paint, no ceilings, furnished. Estimated paintable surface: 70 × 3 = 210 m². Estimated price: 210 m² × 9 €/m² = 1,890 €. If you add ceilings (another 70 m² at 12 €/m²), you add 840 € more.
This figure is not a closed quote, but it puts you in a realistic range before talking to professionals. And it helps you detect out - of - market quotes, both high and low.
What a transparent quote should include
When you receive quotes, check that they include these elements:
- Total paintable surface broken down (walls, ceilings, doors if applicable).
- Description of preparation work: sanding, filling, primer, texture removal if needed.
- Paint type specified: brand, range, finish (matt, satin, washable).
- Number of coats of paint.
- Floor and furniture protection, and final cleaning.
- Execution timeline.
Avoid quotes that only say "paint entire flat" without breakdown. A clear quote protects both client and professional, because it puts in writing what will be done and what will not. Our platform keeps all job details visible online for the client, the professional, and the platform, so the agreed scope is recorded and accessible to all three parties.
Where to save without compromising results
If your budget is tight, there are ways to reduce cost without affecting the final quality:
- Paint only the rooms in daily use (living room, kitchen, hallways) and leave bedrooms for later.
- If the flat is furnished, empty or group furniture yourself before work starts, that reduces labour hours.
- Choose mid - range paint instead of basic. The price difference is small (150 - 300 € for a complete flat), but durability and ease of cleaning are much better.
- Avoid peak season (spring - summer). In autumn and winter some professionals have more availability and more flexible prices.
Prices can also vary by city: in Madrid and Barcelona labour is usually more expensive. If you live in a large city, expand your search to professionals in nearby areas, travel can be minimal and the price more competitive.
How to make sure the estimate is met
Once you have the quotes in hand, compare not just the final price but also what each includes. A lower quote may exclude preparation, protection, or cleaning, and those costs will appear later as extras. A higher quote may include superior quality or longer warranties.
Remember that on our platform payment always works in two phases: 50% at the start (to reserve the date and buy materials) and 50% at the end, after verifying the work. This protects both client and professional and ensures that the work is completed as agreed.
Before accepting a quote, make sure the professional has seen the space, either through photos and videos or with a visit. Both options are equally valid and work the same way: what matters is that the person who will paint knows the real condition of the surfaces before closing the price.
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