What does routine care of outdoor paving involve?
Routine care is mostly simple: sweep often, rinse when dirty, deal with spills quickly, pull weeds while they are small and keep the joints full. Done regularly, those tasks prevent the bigger jobs that come from neglect, such as loose pavers or stained surfaces that need restoration.
- Sweep leaves, flowers, fruit and sand before they rot or stain.
- Rinse with a hose and a stiff brush rather than reaching for strong chemicals.
- Wipe up oil, wine, barbecue grease and suncream as soon as you see them.
- Remove weeds and moss from joints by hand when they first appear.
- Check joint sand after heavy rain or washing and top it up where it has dropped.
- Clear channels, gullies and grates so water keeps flowing.
For owners who spend part of the year abroad, the most useful habit is asking whoever looks after the property to send a few photos after heavy rain. Photos show early signs such as standing water or a corner that has dropped long before they become expensive.
How should block paving be cleaned?
Block paving and concrete slabs are best cleaned with water, a stiff brush and, where needed, a mild detergent suitable for outdoor paving. A pressure washer can help with stubborn dirt, but used too close or too intensely it blasts sand out of the joints and can roughen the surface.
- Sweep the area thoroughly and remove loose debris.
- Wet the surface and scrub with a stiff brush, working in sections.
- Use a pressure washer only at a sensible distance and angle, never aimed into the joints.
- Rinse, letting water run towards the drains rather than across the house threshold.
- Let the surface dry completely.
- Brush dry jointing sand into any joints that have emptied.
Cleaning and re-sanding go together. After any deep clean, joints will need refilling, otherwise pavers start to move and weeds take hold. If you prefer a professional clean with joint refilling or a protective coat, that is the work of our sister site for cleaning and sealing.
How do you remove oil, rust and organic stains?
Fresh stains are far easier to remove than old ones, so the first step is always to act quickly. Absorb oil with something dry before washing; rinse organic stains from leaves, fruit or bird droppings before the sun bakes them on; and keep metal furniture and pots on feet or mats to avoid rust rings.
| Stain | First action | Caution |
|---|---|---|
| Oil, grease, barbecue fat | Absorb with a dry absorbent, then wash with a degreaser suitable for paving | Test the product on a hidden area first |
| Leaves, fruit, flowers | Sweep and rinse promptly | Dark marks fade faster if cleaned early |
| Rust from furniture or pots | Remove the source and use a product meant for rust on paving | Some products are acidic and can etch stone or concrete |
| Algae and moss in shade | Scrub and improve drainage and light where possible | Strong biocides affect nearby plants |
| White deposits | Brush and rinse; seek advice before using acids | Our sister site explains white haze in detail |
Natural stone deserves extra care, because some stones react badly to acids or strong cleaners. When in doubt, ask the supplier of the stone and try any product on a spare piece. White haze on concrete products is a topic of its own, explained in white haze and stains.
How do you keep weeds out of the joints?
Weeds grow where joints are empty or contain organic dirt, so the most effective prevention is keeping joints full of clean jointing material. Pull weeds by hand while small, remove the soil they leave behind, and refill the joint.
Shady, damp corners and areas where water lingers are the first to turn green. If a particular strip always grows moss, it is worth asking why it stays wet: a blocked channel, a missing fall or a leaking irrigation line. Fixing the cause is more lasting than repeated treatment; our guide to a patio without puddles explains how falls and drainage work.
Some owners prefer a jointing product that sets once in place, which makes it harder for weeds to establish. Whether that suits your paving depends on the bed and the existing joints, so it is a choice best made when the paving is laid or relaid.
How often should drainage channels be cleaned?
Channels, gullies and grates should be checked regularly and always after heavy rain or a dusty spell, because one blocked outlet is enough to flood a terrace. How often depends on trees, sand and how exposed the area is, so look at them rather than following a fixed calendar.
- Lift the grate and remove leaves, sand and grit from the channel.
- Rinse the channel and check that water reaches the outlet freely.
- Look at the paving next to the channel for dips or loose pieces.
- Make sure planting beds are not washing soil into the drain.
Pool areas have their own debris: leaves from the water, sand from feet and the odd toy. Keep the surround channels clear so splash water leaves quickly; see pool surround materials for why water must always run away from the pool.
What care do holiday lets and second homes need?
Paving at a holiday let or a second home needs the same care as any other, but it has to be organised from a distance. The simplest approach is a short checklist for the cleaner, gardener or property manager, combined with photos sent at agreed moments, for example before the season and after heavy rain.
- Sweep and rinse the terrace and pool surround before guests or owners arrive.
- Check channels and gullies and clear any blockage.
- Look for rocking pieces, sunken spots or open joints and photograph them.
- Note stains from furniture, barbecues or plant pots and remove them early.
- Send the photos with the date, so changes can be compared over time.
Guests do not always treat paving as an owner would: barbecue fat, suncream and drinks are common, and heavy furniture is dragged across. Placing mats under the barbecue, felt or plastic feet under furniture and trays under pots avoids many of the marks we are later asked to deal with. It also helps to leave a short note about not pressure washing the joints.
When is cleaning not enough?
Cleaning is not enough when pieces rock, sink or lift, when water stands in the same spot after every rain, or when the surface is worn or faded beyond what washing can bring back. Those are signs of a base problem or of a surface that needs restoration.
- Pieces sinking, rocking or lifted by roots: the base needs correcting, see re-levelling pavers.
- Sound but faded or tired stamped concrete or concrete: renewal without replacement, see stamped concrete restoration.
- Broken, obsolete or badly laid paving: replace it, as on paved terraces or garden paths.
In communities of owners, care of shared paths and pool surrounds is a matter for the community. Work on common elements needs a resolution of the owners' meeting under the Horizontal Property Law (Ley 49/1960), and the community administrator is the person to confirm the exact majority for a given job.
How can we help with tired paving?
If your paving needs more than routine care, send us photos and we will tell you honestly whether it is a matter of cleaning, local repair, renewal or replacement. Many situations do not need new paving at all.
We build and relay terraces, paths and pool surrounds through paved terraces, pool surround paving and patios and porches; restoration without replacement is handled by our sister site, and we work with Mapei products for that kind of work. Send us a photo and the approximate m² – free, no-obligation quote.
Frequently asked questions
Can I pressure wash block paving?
Yes, with care. Keep a sensible distance, avoid aiming the jet into the joints and work at an angle. Afterwards the joints will usually need refilling with dry jointing sand, otherwise pavers start to move and weeds find space to grow.
How often should I re-sand block paving?
Whenever the joints have visibly dropped, typically after deep cleaning or heavy rain. There is no fixed interval. Check by looking along the joints: if the sand sits well below the top of the pavers, brush in new dry jointing sand.
How do I remove oil from a patio?
Absorb as much as possible with a dry absorbent first, then wash with a degreaser suitable for outdoor paving and a stiff brush. Test the product on a hidden area before using it widely, especially on natural stone, and act quickly because old oil stains are harder to shift.
What causes green algae on garden paths?
Algae and moss grow where paving stays damp and shaded, often because water is not draining away. Scrubbing removes them, but they return unless the cause changes. Check the fall, the channels and any irrigation that wets the paving regularly.
Should outdoor paving be sealed?
Sealing is optional. A protective coat can make cleaning easier and change the appearance, but it needs reapplying over time and the surface must be clean and dry beforehand. Whether it suits your paving depends on the material and how the area is used.
Are strong acids safe on paving?
Not as a routine cleaner. Acids can etch concrete and damage some natural stones, and they affect nearby plants and metal. Use them only on advice for a specific problem, after testing on a hidden area, and follow the manufacturer's instructions closely.
Why do weeds keep coming back between my pavers?
Because the joints contain dirt or have emptied, giving seeds a place to root. Remove the weeds with their soil, clean the joint and refill it with clean jointing sand. Keeping joints full is the most effective long-term prevention.
My patio has sunk in one place. Will cleaning help?
No. A sunken area means the base has moved, so the paving needs lifting, the base correcting and the pieces relaying. Our sister site for sunken paver repair deals specifically with this type of problem and its causes.
Can faded paving be renewed without replacing it?
Often, yes. Sound concrete, stamped concrete and pavers that are only faded or worn can be cleaned, repaired and coated with a tinted resin. Our sister site for restoration explains when that approach works and when replacement is the better option.
Who maintains shared paving in a community of owners?
Shared paths and pool surrounds are common elements, so their maintenance is decided by the community. Work on them needs a resolution of the owners' meeting under the Horizontal Property Law; ask the administrator which majority applies.