Wall cleaning for village property in Lanreath
Rolling farmland village north of Polperro.
Wall cleaning in Lanreath is mostly a question of what the wall is made of. Rolling farmland village north of Polperro. The nearest hub we cover in depth is Polperro, and the building stock here follows the same pattern.
Lanreath is recorded as a rolling-farmland village north of Polperro, with painted render and cob below slate. Cob requires a conservative condition check focused on cracks, detached coatings, hard cement repairs and exposed earthen fabric. The inspection compares weather-facing walls with sheltered returns and follows roof drainage to the plinth, but does not assume rural exposure is the cause of every mark. Only sound, representative coating is suitable for a small response test. If the skin is failing, repair and moisture movement need resolving before appearance, keeping cleaning separate from work that belongs to a building specialist.
Quote for a Lanreath property
Monday to Saturday, 8am – 7pm
Shade, damp and run-off
- Washing without a biocide simply resets the clock and leaves the roots in place.
- Once lichen is established it holds water itself, which makes the surface beneath it wetter than it started.
- A tree removed years ago can leave a wall that greened in its shade and never fully recovered.
- Where a gutter joint weeps rather than pours, the stain is thin, vertical and very persistent.
- An untreated wall carries a spore load already, so regrowth after a rinse is faster than first growth ever was.
- A wall that faces a large expanse of glass on another building gets less sun than its aspect suggests.
- North-east corners hold frost longest and thaw slowest, which extends the damp window every morning.
- A textured coating applied over an already dirty surface holds that dirt as a feeding layer.
- Prevailing wind decides which elevation takes driven rain, and that elevation is nearly always the tired-looking one.
Lanreath at a glance
- Typical roof covering here is slate, which affects what washes down onto the walls.
- Polperro sits about 5.2 miles from Lanreath on our round, so visits are often shared.
- Recorded character: village. Rolling farmland village north of Polperro.
- Nearest full coverage hub: Polperro (PL13), Cornwall Council.
- Typical wall finish here is painted render and cob, which sets the cleaning method.
Surfaces this page is written for
- Bead edges and stop ends on a rendered elevation are the details worth protecting from driven water.
- Render responds to dwell time better than almost any other finish, which is what makes softwash suit it.
- That gets pointed out before work starts rather than discovered halfway through.
- Gloss-painted details like cills are wiped rather than sprayed.
- Where cob has been cement-rendered at some point, that render traps moisture and the wall behaves badly.
- Any rinse on cob is minimal and directed downwards, never held on the surface.
Reading the surface
- 01Where the pattern is a band at the bottom, splash from the ground is doing it.
- 02The mortar is tested with a key at a discreet point, since soft mortar sets the whole method.
- 03Anything that cannot be explained by water is treated with more caution, not less.
- 04The first question is whether the staining sits on the surface or has gone into the material, because only one of those cleans off.
- 05The elevation is read from the pavement first and from a metre away second.
- 06Hollow-sounding render is checked by tapping before any water is put onto it.
- 07Whether the growth has spread onto glass and frames tells you how long it has been established.
- 08Weep holes are counted and checked for blockage while the wall is being read.
Sequencing the outside of the house
A first clean is heavier work than the ones that follow, so the interval afterwards can be longer than people expect.
If windows were cleaned recently, tell us, and they get sheeted rather than redone.
Driveways come after walls so that run-off from the elevation is rinsed away as part of the drive work.
Where only walls are being done, the gutter line is still checked, because it is the usual culprit behind the worst staining.
Before the day in Lanreath
- Let us know whether the gutters have been cleared in the last couple of years.
- Note any external socket or garden power run near the base of the wall.
- If a security light or camera covers the elevation, tell us so it can be isolated.
- Point out ground-floor windows that are painted shut, as they need different masking.
- Tell us about any previous treatment that came back quickly, and how quickly.
- Tell us about pets in the garden before the day rather than on it.
- Mention any glazing you already know is cracked before work starts.
- Let us know if scaffold or a tower is already up for other work.
Within a short run of Lanreath
Questions Lanreath owners ask
- Is a second visit ever needed?
- For heavy lichen, a lighter second application later beats increasing pressure on the first.
- Do you take the waste away?
- There is very little on a wall job. What comes off the surface is rinsed to a drain that can take it.
- Will the colour be even afterwards?
- Working bottom-up and one elevation at a time is what keeps it even.
- What about the smell for neighbours?
- Mild and short-lived, and we avoid boundary elevations when someone next door has washing out.
- Will the drive get messy?
- Anything below the elevation is rinsed off before we finish.
- How long before I can repaint?
- Several dry days after the wall has been treated and rinsed.
- Can the whole outside be planned in one go?
- Yes, and getting the order right matters more than doing it all at once.
- Is the water mains-fed?
- From your outside tap where there is one. Where there is not, we bring it with us.
Ask about the surface first
Tell us the wall finish and we will tell you the method we would use on it.
To sum up for PL13
The mortar is the weakest link on most walls, so the mortar sets the pressure. If the staining sits in the substrate rather than on it, we will say so before taking the work on. The safest method is the one set by the weakest material on the wall, not the strongest. Monday to Saturday, 8am to 7pm.