Domakihub How to Paint Exterior Walls: A Step-by-Step Guide
Prep right, choose the correct paint, and get a finish that lasts years under the Greek sun.
Reviewed by Domakihub home & decor pros · 2026-06-23 · 5 min read
A fresh coat of exterior paint does more than improve curb appeal — in Greece's climate of intense UV, sea salt, and winter damp, the right paint job actively protects masonry and plaster from cracking, mould, and water ingress. The video above walks through the essentials visually, while this guide breaks the process into clear, ordered steps suited to homes, holiday rentals, and small hotels in Greece. Follow both together and you will avoid the most common mistakes that lead to peeling within a single season.
Why exterior painting in Greece demands extra care
The Greek climate is punishing for exterior finishes. Summer temperatures push above 40°C in many regions, UV radiation is among the highest in Europe, and coastal properties face constant salt spray. Paint that performs well in northern Europe often fails here within two or three years if the wrong product or preparation shortcut is used.
Holiday rentals and hotels face an additional constraint: a poor exterior finish signals low standards to arriving guests before they step inside. Investing a few extra hours in surface preparation and using a high-quality elastomeric or silicone-resin paint dramatically extends the repainting interval — typically from 3 years to 7 or more.
Choosing the right exterior paint for Greek conditions
For rendered or plastered masonry — by far the most common wall type in Greece — a breathable, elastomeric exterior paint is the best choice. These paints stretch slightly as the substrate expands and contracts with heat, preventing hairline cracks from forming and letting moisture vapour escape from the wall rather than trapping it. Silicone-resin (siloxane) paints add hydrophobic properties that shed rain while remaining vapour-open.
Avoid standard interior-grade or budget emulsions on exterior surfaces regardless of how they are labelled. For wooden elements such as shutters and fascias, use a specialist exterior wood paint with UV filters. Stone or brick that will be left semi-exposed benefits from a transparent or tinted stone sealer rather than a film-forming paint.
How to paint exterior walls: 5 steps
- 1
Clean and repair the surface
Begin by washing the wall with a stiff brush or pressure washer to remove dirt, algae, and loose paint. In Greece, green algae growth on north-facing and shaded walls is extremely common; treat it with a diluted fungicidal wash, leave it to work for 24 hours, then rinse thoroughly. Once dry, use exterior filler or patching mortar to fill cracks and chips. Allow all repairs to cure fully — at least 48 hours in warm weather — before proceeding.
- 2
Mask, protect, and prepare adjacent surfaces
Lay dust sheets over plants, paving, and furniture. Tape window frames, door frames, shutters, and any pipes or fittings with painter's masking tape. Remove light fittings and external sockets where possible, or cover them carefully. Spending time here pays dividends: paint drips on tiles or UPVC windows are time-consuming to remove after the fact.
- 3
Apply a primer or sealer coat
Bare or newly repaired masonry must be primed before the topcoat. Use an alkali-resistant exterior primer on fresh plaster or concrete, as these substrates are alkaline and can saponify (break down) oil-based or acrylic topcoats applied directly. On previously painted surfaces that are sound, a diluted first coat of your chosen topcoat paint (thinned 10% with water for water-based products) can serve as a bonding primer. Allow the primer to dry completely before painting — typically 4 to 6 hours in Greek summer conditions.
- 4
Apply the topcoat in two passes
Use a large exterior roller (a 23 cm lambswool or foam roller) for flat wall areas and a quality synthetic brush for edges, reveals, and cut-ins around windows. Apply the first topcoat in thin, even strokes working from top to bottom to catch any drips. Avoid painting in direct midday sun: heat causes the paint to dry too fast, leaving lap marks and brush drag. Early morning or late afternoon is ideal. Once the first coat is fully dry (check the manufacturer's drying time, usually 2 to 4 hours), apply the second coat in the same manner.
- 5
Remove masking and inspect the finish
While the final coat is still slightly tacky — not wet, not fully dry — remove the masking tape at a 45-degree angle to avoid pulling paint from the wall. Inspect the finished surface in raking light to spot any missed patches, thin areas, or runs. Touch these in with a brush before the paint hardens completely. Clean brushes and rollers immediately with water (for water-based paints) or the appropriate solvent. Properly cleaned brushes last for many jobs.
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FAQ
- How many coats of paint does an exterior wall need?
- Two coats are the minimum for a durable, even finish on exterior walls. On bare or freshly plastered surfaces you will need a primer plus two topcoats. Skipping to a single topcoat always results in uneven coverage and reduced weather resistance, especially on textured or porous Greek masonry.
- What is the best time of year to paint exterior walls in Greece?
- Spring (April to May) and autumn (September to October) offer the best conditions: temperatures between 15°C and 28°C, lower UV intensity, and reduced risk of sudden rain. Avoid painting in summer midday heat above 35°C or when rain is forecast within 24 hours. Winter painting is possible in mild areas but drying times increase significantly and cold nights can prevent proper film formation.
- How long does exterior paint last in Greece before it needs repainting?
- A budget exterior paint applied over minimal preparation typically lasts 3 to 4 years in the Greek climate. A quality elastomeric or silicone-resin paint applied over a properly primed, clean surface can last 7 to 10 years. Properties near the sea should budget for repainting more frequently — every 4 to 5 years even with premium paint — due to the corrosive effect of salt air.