When is a deep clean enough, and when do you need more?
A deep clean is enough when the colour of the surface is still good and the problem is dirt, organic growth and stains on top of it. When the colour itself has faded or the old sealer has failed, cleaning will reveal the surface rather than renew it, and a tinted coating is the next step.
It is worth being clear about this before booking. Many owners expect a pressure wash to make a faded driveway look new; in practice, cleaning a weathered surface often shows how pale it has become. If your paving looks tired even when it is wet, that is a good sign the colour has gone and that recolouring – described on the page about stamped concrete restoration – will be needed.
A simple check helps you decide. Wet a faded area with a hose: if the colour returns strongly while wet and fades again as it dries, the pigment is still there and a clean plus protective coat may be enough. If it looks almost as pale when wet, the colour has gone and recolouring is the realistic option.
What does professional pressure washing remove?
Pressure washing removes surface dirt, dust, leaf residue, moss, algae, weeds from joints, loose particles and the remains of flaking or powdery sealer. It is also the essential first stage of any coating, because new material can only bond to a clean, sound surface.
- Dirt and dust that have built up in the grooves of stamped patterns.
- Moss, algae and green film on shaded paths, steps and areas near planters.
- Weeds and organic growth in the joints of block paving.
- Loose and flaking remains of old sealers and coatings.
- Black lichen growth, though faint marks may remain on the concrete.
- Surface soiling from garden soil, pots and outdoor furniture.
On pavers, washing can empty some of the joints. Those joints need refilling so the blocks continue to support each other; if blocks were already loose, that is a structural question for our sister site, explained on its page on loose pavers.
How do you deal with oil and rust stains?
Oil and rust are among the hardest marks to shift because they soak into the pores of the concrete. Washing reduces them, but deep-set stains rarely disappear completely; on a surface that is going to be recoated, the tinted resin then covers the remaining shadow.
Oil matters for another reason: heavy residues can interfere with how a coating bonds. Before recolouring a driveway or garage apron we therefore pay particular attention to the areas where cars park. Rust rings from metal furniture or pots are treated in the same way. If you are only cleaning, we will tell you in advance which marks are likely to remain so there are no surprises.
Fresh drips are always easier to deal with than old ones. If a car leaks on the drive, soaking up the oil with absorbent material such as cat litter or sawdust and sweeping it away before it penetrates makes the later clean far more effective. Avoid spreading it with water and a broom, which only widens the stain.
Why does preparation before sealing matter so much?
A sealer or coating is only as good as the surface it sits on. Applied over dirt, moisture or loose old material, it will cloud, lift or peel; applied over a clean, sound and dry surface, it has the best chance of performing as intended.
Preparation is therefore the bulk of the work: thorough washing, time for the surface to dry, filling cracks and holes, and masking edges. Our guide to surface preparation explains each point and why we will not coat a surface we think is not ready. If your problem is white haze or blotches, the guide on white haze and stains explains why the cause must be understood before sealing.
What is the protective coat, and is it the same as a sealer?
The protective coat is a final, optional layer applied over the surface – either over the two coats of tinted resin in a full restoration or, on a surface whose colour is still good, directly after cleaning. In everyday language it is what many people call sealing.
We work with Mapei products and choose the system according to the surface and how it is used. We do not make claims on this website about how long a coating lasts, how it behaves in the sun or how slip-resistant it is, because that depends on the product, the surface and the use; we discuss it with you for your specific case and describe it in the quote. Some owners ask for a wet-look finish; tell us what you expect and we will explain what is realistic.
Can sloping driveways and steps be cleaned and sealed?
Yes. Sloping drives and outdoor steps are cleaned in the same way, with attention to where the water runs and to protecting doors, gates and planting at the bottom of the slope. Coating a slope needs care with access, since the surface cannot be walked on while it is being treated.
Drainage channels and gullies are kept clear during the work. If a slope shows standing water, sunken areas or erosion at the edges, that suggests a drainage or base problem rather than a cleaning one; our sister site addresses those situations on its page about drainage and standing water.
How are cleaning and sealing priced?
The cost depends on the area, how dirty the surface is, the amount of moss and weeds, the stains to treat, access for equipment and a water supply, and whether the protective coat is included. This site does not publish prices.
On our sister site, pressure washing and the protective coat appear as separate lines in the sample quote on the restoration cost page. For keeping the result looking good, read our aftercare after restoration guide, which also applies after a cleaning-only job.
Frequently asked questions
Can you just pressure wash my driveway without painting it?
Yes. A deep clean is a job in its own right when the colour of the surface is still good. We will tell you beforehand if we think the surface will look faded once clean, so you can decide whether to add recolouring.
Will pressure washing damage stamped concrete?
Washing removes dirt and loose material, including old sealer that has already failed. Sound concrete is not harmed by normal professional washing, but weak or crumbling surfaces can lose loose particles, which is one reason we look at photos before quoting.
Can moss and weeds be kept away after cleaning?
They return where shade and moisture persist. Regular sweeping, clearing leaves and keeping joints filled all help. On block paving, refilled joints leave less room for growth. Our aftercare guide gives a simple routine for owners and property managers.
Can oil stains be removed completely?
Fresh oil is easier to reduce than old, deep stains, which often leave a shadow after washing. On surfaces that are recoated afterwards, the tinted resin covers the remaining marks. On cleaning-only jobs we tell you which marks are likely to stay.
What is the difference between sealing and recolouring?
Sealing adds a protective layer over the existing colour. Recolouring applies two coats of tinted acrylic resin that change or restore the colour itself, and it can be followed by the protective coat. If the colour has faded, sealing alone will not bring it back.
Do you offer a wet-look sealer?
We discuss the look you want when quoting. The finished surface in our project photos shows a glossy appearance, but the result depends on the surface and product system. We prefer to explain options for your case rather than promise a particular finish online.
Do you clean patios and pool areas too?
Yes, as well as driveways, carports, garage aprons, paths and steps. Around pools we protect the water and edges and keep drains clear. Pool surround safety requirements under the building code may apply; an architect or the town hall can confirm whether they cover a specific private villa.
Do I need to be at home during cleaning?
No. We need access to the area and to a water supply. Many clients are abroad and arrange access through a neighbour or property manager. We send photos before and after so you can see the result.
Can you clean roofs, decking or stonework?
No. This site covers outdoor paving: stamped concrete, plain concrete and concrete block paving. We do not clean roofs or timber decking, and we assess natural stone individually before agreeing to work on it.
How do I get a quote for cleaning and sealing?
Send us a photo and the approximate m² – free, no-obligation quote. Tell us whether you want cleaning only or the protective coat as well, and include close-ups of the worst stains, moss or flaking areas.