Henwood walls: method before pressure
Moorland hamlet near the Cheesewring.
A wall in Henwood that has greened over is telling you where water sits. Moorland hamlet near the Cheesewring, so the pattern of staining tends to repeat from one property to the next.
Quote for a Henwood property
Monday to Saturday, 8am – 7pm
Shade, damp and run-off
- Airflow along a terrace is different from airflow around a detached house, and the drying patterns follow.
- A path that slopes towards a house rather than away from it keeps the base of the wall wet after every shower.
- Ivy pulled off a wall leaves suckers and a shaded, damp face that greens quickly afterwards.
- Where a hose reel or water butt overflows against a wall, the staining follows the overflow path exactly.
- Salt spray does not itself grow, but it roughens and holds damp, which is the same outcome.
- Pebbledash holds water in the shadow of every stone, so it stays damp long after a flat render has dried.
- Lichen anchors into the surface rather than resting on it, which is why brushing achieves nothing and pressure achieves damage.
- Spores travel on the wind and land everywhere. What decides whether they take hold is whether the surface stays damp.
- Tree canopy overhead drips long after the rain has stopped and drops organic debris onto the wall face.
Henwood at a glance
- Liskeard sits about 0.2 miles from Henwood on our round, so visits are often shared.
- PL14 covers 8 town hubs and 14 villages or districts in our radius.
- Recorded character: moorland hamlet. Moorland hamlet near the Cheesewring.
- Nearest full coverage hub: Liskeard (PL14), Cornwall Council.
- Typical roof covering here is slate, which affects what washes down onto the walls.
Surfaces this page is written for
- Treatment kills lichen and lets it weather off, which is slower to look finished than a pressure wash but leaves the face intact.
- Granite dressed centuries ago has an open surface that holds water in a way polished stone does not.
- A granite elevation is judged corner by corner, because exposure varies more than on a rendered face.
- Second lighter applications suit granite better than one strong pass.
Reading the surface
- 01A test patch at low strength shows what the surface will do before the full elevation commits to it.
- 02The state of the pointing is judged at the most exposed corner, not the most convenient one.
- 03A short section of hose test shows whether run-off drains away or ponds at the base.
- 04The mortar is tested with a key at a discreet point, since soft mortar sets the whole method.
- 05Colour matters: green suggests algae, black suggests fungal spotting, grey-white crust suggests lichen.
- 06The first question is whether the staining sits on the surface or has gone into the material, because only one of those cleans off.
- 07The elevation is read from the pavement first and from a metre away second.
- 08Where the pattern is a band at the top, the gutter line is doing it.
What to book before and after the walls
Booking services out of order is the commonest reason a clean seems not to have lasted.
A wall treated in autumn goes into winter clean, which is when it matters most.
Block paving cannot be re-sanded until it is dry, which decides the running order in a wet week.
Roof work always precedes wall work, because everything released from the slope lands on the elevation below it.
Before the day in Henwood
- Tell us if a fence panel is loose, because sheeting gets pegged to something solid.
- Say if a conservatory or lean-to abuts the elevation, so glazing can be sheeted.
- Point out ground-floor windows that are painted shut, as they need different masking.
- Mention whether the drive drains to a soakaway that already struggles in heavy rain.
- Point out any window that does not seal properly, so it gets sheeted rather than sprayed near.
- Say whether the property is occupied during the day, since that changes nothing technically but helps the plan.
- Move cars off a drive that runs tight to the house if you can, and tell us if you cannot.
- If parking needs a permit or a bay suspension, tell us early.
Nearby villages and districts
Common questions about wall softwash
- Is a lower price ever a bad sign?
- Not automatically, but ask what method is being used. Speed on a delicate finish usually means pressure.
- Do you cover air bricks the whole time?
- Covered while the wall around them is worked and uncovered before we go.
- Is it worth cleaning a wall in winter?
- Yes. Cool damp conditions suit the method, and heavy rain during application is the only real obstacle.
- Will the wall need doing again next year?
- Not usually. How long it holds depends on shade, run-off and airflow rather than on the treatment.
- Will the colour be even afterwards?
- Working bottom-up and one elevation at a time is what keeps it even.
- How is a quote put together?
- By elevation area, surface type and access, written down before anything starts.
- Do you use a pressure washer at all on a wall visit?
- Only on hard surfaces below it, like paving, and never on the wall finish itself.
- Can lichen be removed completely?
- The organism is killed, and what is left weathers off. Deeply rooted lichen on stone can take a season to fade.
Ask about the surface first
Tell us the wall finish and we will tell you the method we would use on it.
In a sentence or two
Shade is not a fault in a house, but it is the reason one elevation always looks worse. Method, dwell, rinse, check. There is nothing else to it. If a previous clean did not last, the cause was probably never dealt with.