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Soft Wash Treatment · Buckinghamshire

Soft Wash Treatmentin Medmenham

Medmenham is a small Thames-side village of flint and brick cottages and larger houses in long gardens. We soft wash walls, copings and textured render at low pressure, and plan where every drop of rinse water goes.

  • Flint, brick and render
  • Garden walls and copings
  • Chiltern EverGuard™ included
Low-pressure rinse of a brick coping after the soft wash solution has done its work

Our starting point

Removing growth, keeping character on walls that have earned it

Older walls carry more than dirt. They hold the marks of repairs, changes in brick and the gentle variation of age, and none of that should be scrubbed away. Soft Wash Treatment removes the biological layer of algae, lichen and mould with a solution applied at low pressure and left to act, so the material underneath can be seen again without being changed.

The River Thames at Medmenham with ducks on the water

The village

A riverside village of flint, brick and long gardens

Medmenham lies on the Buckinghamshire bank of the Thames between Marlow and Henley-on-Thames, with the wooded Chiltern hills rising behind it. The river, mature trees and shaded gardens keep moisture around buildings for long periods, and moisture is what every kind of organic growth follows.

Homes range from village cottages built in flint and brick, often with soft lime pointing, to larger houses and country residences with long elevations, outbuildings and garden walls. Many of these walls have been altered and repaired over generations, so a single face can hold several materials and mortars side by side. That history shapes how each wall should be cleaned.

Long elevations

One long wall can hold several microclimates

A long elevation looks like one cleaning area, but its ends and middle often behave differently. The part open to the breeze dries quickly, while a stretch beside a projecting wing, a hedge or a large shrub can stay damp for most of the day.

The heaviest green does not mean the wall is dirtier overall; it shows where moisture lingers. We read those patterns before treatment so the effort goes where growth is actually established, and we do not keep treating sound, naturally weathered areas just to make the whole wall look artificially identical.

Garden walls

Freestanding walls and the copings that stain them

Freestanding garden and boundary walls are exposed on both faces and along the top. Copings take rain directly, hedges shade one side, and soil keeps the base damp. They can carry thick bands of algae and lichen even where the house is fairly clear.

Water running over a coping follows the same path each time, carrying organic matter down the face and leaving dark streaks below joints and edges. Where practical we treat the coping with the wall, so the streaks are dealt with at their source. Loose masonry, failing mortar or damaged copings are noted as repairs, not washed.

  • Copings: included so streaks below them do not simply return
  • Hedge-shaded faces: often far greener than the open side
  • Wall bases: damp from soil and planting, treated with care

Texture and flint

Textured render and flint panels without flattening them

Rough-cast and other textured renders, rough brick and flint panels give algae plenty of small hollows to sit in. A jet strong enough to clear those hollows would also wear down the raised surface around them and wash out lime pointing between flints.

Soft washing reaches into the texture with the solution rather than with force, so the growth is treated where it sits and the finish keeps its character. The rinse is gentle and kept off weak joints, and anything that looks fragile is pointed out to you first.

Not all marks are growth

Old repairs, overflow stains and marks that are not biological

Once a green film has gone, replacement bricks, repointed patches and older repairs can stand out more, because their colour and age differ from the original wall. That is the true wall showing through, and we set that expectation before we start.

Some marks also need a different diagnosis. A patch under an overflow pipe may be growth fed by a leak, which will return until the leak is fixed. Rust, mineral deposits, old paint and adhesive are not biological and may need another method. When the wall is clean, we apply the Chiltern EverGuard™ Treatment to help reduce the return of growth.

How we work

Five stages, planned around the walls and the river

On homes this close to the Thames, where the rinse water goes is decided before anything is applied.

  1. 01

    Read the surface and the pattern

    We identify the materials and finish, the type of growth, how moisture sits on each wall, earlier repairs and any areas that need extra care.

  2. 02

    Prepare the surroundings

    Planting, paving, glazing and adjoining finishes are protected or wetted down, and the rinse route is planned so run-off is controlled rather than left to find its own way.

  3. 03

    Apply the chosen treatment

    The solution is applied at controlled low pressure and allowed the contact time it needs to work on algae, lichen and mould across the agreed walls and copings.

  4. 04

    Rinse and finish details

    Where the method calls for it, walls are rinsed gently around corners, ledges, copings and lower sections, and surrounding planting is rinsed through.

  5. 05

    Protect and explain

    Chiltern EverGuard™ is applied to the cleaned surfaces, and we walk you round to separate removed growth from weathering, repairs or marks that need another approach.

A realistic finish

Clearer and fresher, not artificially uniform

Brick colour varies, render weathers differently on each side of a house, and old repairs remain visible. The aim is to remove the biological layer hiding the surface, not to make every part of the wall identical. Cleaning does not repair masonry or mortar.

Chiltern EverGuard™ protection typically lasts between 12 and 24 months, depending on how close the wall is to the river and trees, its material and its upkeep. Shaded garden walls are likely to sit at the shorter end.

More about soft wash treatment

Proof of work

Soft Wash Treatment projects across Buckinghamshire

View all projects
  • Brick retaining wall and railings beside the front steps of a house in Beaconsfield, darkened by black algae before soft washing
    The same brick retaining wall in Beaconsfield after soft washing, the red and blue brick and pale mortar joints visible again

    Brick Cleaning and Soft Washing in Beaconsfield

    Brick cleaning and soft washing in Beaconsfield: black algae and lichen treated on brick retaining walls and copings, then rinsed at low pressure.

Why us

Why we suit older walls by the river

  • Character respected

    We clean to reveal the material, not to change it, and we will not push a treatment harder just to hide honest age and old repairs.

  • Run-off planned

    Close to the Thames, the rinse route and containment are worked out before we start, and the solution is used only where it is needed.

  • Every wall considered

    House walls, garden walls, copings and outbuildings are each assessed on their own condition rather than treated as one surface.

  • Fully insured

    Every job is carried out by fully insured operatives, and we are based just upriver in Marlow, so we know these conditions well.

Nearby

Soft washing in the hamlets along this stretch

We also carry out Soft Wash Treatment in the surrounding villages and hamlets, including Hambleden, Frieth, Fingest, Hurley and Remenham. Many share the same shaded, rural setting, and each property is assessed on its own walls.

Soft Wash Treatment in nearby towns

What Clients Say

Trusted by homeowners across Buckinghamshire, Berkshire, and Oxfordshire.

Thank you to every client who has trusted us with their home. Your reviews mean a great deal to us. We’re proud to be fully insured, certified professionals — delivering proven results with a customer-focused approach on every single project.

5-Star Rated On Google

  • “Highly knowledgeable and kept us informed throughout the whole process.”
    DWDean WilliamsonMarlow
  • “Jon was very professional and knew exactly what was required.”
    DRDavid ReynoldsMarlow
  • “Incredibly, Jon managed to get it gleaming again. I'm thrilled with the results.”
    AWAnna WilliamsonMarlow
  • “They did a great job cleaning my patio & front driveway in Marlow, very attentive to detail & prompt.”
    TMTom McGrath
  • “I couldn't be happier with the service from Jon, this Marlow Company provided.”
    TDTina Devereux
  • “Jon Did a fantastic job of the driveway and walls.”
    TATim Anders
  • “I cannot recommend Chiltern surface co highly enough!”
    TGThe Gentry Marlow
  • “John spent a few hours cleaning and jet washing my drive, wow an amazing job.”
    SSStuart Singer
  • “Highly recommended! The quality of the work was excellent from start to finish.”
    SMSara Maio
  • “Absolutely brilliant! Jon was absolutely fantastic in communication.”
    RURuby Uppal
  • “Highly please with the result of the roof clean”
    RDRobert Daly
  • “I recently had the chiltern surface co team round to my house in Marlow to clean our patio and driveway.. Really happy with the results! The driveway and back patio are looking brand new. Definitely recommended!”
    RKrobbie kneen
  • “Fantasitc company, fantastic job, couldn't recommend more.”
    RHRichard Hobbs
  • “Chiltern Surface Co. were amazing. The men worked really hard in extreme heat and were very respectful of our property”
    ODOlwyn Davison-Oakley
  • “Absolutely brilliant service received from this company.”
    NCNigel Crow
  • “Highly recommend Jon and the Chiltern Surface Co team. They did a fantastic job cleaning, treating and re-sanding.”
    NPNicola Padbury
  • “My roof had been an issue for years with the build up of moss.”
    NNicola
  • “A huge thank you to Jon and the team at Chiltern Surface Company for the outstanding job they've done.”
    NMNick Marr
  • “Chiltern Surface Co. did an outstanding job cleaning our patio.”
    NCNeylan Cankurtaran
  • “Jon did a wonderful job cleaning and treating our roof which had been in a terrible state. He was meticulous and professional throughout, we absolutely cannot fault the service. Would highly recommend.”
    LSLouise Scully
  • “Jon and his team were professional, tidy and did a great job. We had the gutter cleaning service”
    KCKate CT
  • “An excellent service from start to finish. The patio was in quite a state and now it looks as good as new.”
    JSJulie Simpson
  • “I didn't realise just how dirty my patios and driveway had become over the last 4 years.”
    JHJohn Holmes
  • “Excellent and professional work from start to finish. Both our patio and roof now look fantastic. Highly recommended!”
    JPJames Phillips
  • “Solid work on our guttering and cleaning patio stones. Jon and his team worked hard during the day with some really good results to show.”
    GGordon
  • “I couldn't be happier with the patio cleaning service. Years of dirt and stains were completely removed.”
    GSGill Slater
  • “I recently had my 110m² block paved driveway at my home in Maidenhead professionally cleaned, re-sanded and sealed.”
    FCFrancesco Carco
  • “Top notch service. Turned up on time, quick, efficient and my drive has never been so clean! Will definitely use Jon again.”
    DHDaniel Harrison
  • “Jon and the team at Chiltern Surface Co were professionalism exemplified.”
    CWConnor Walton
  • “Jon and his team recently cleared all of our very mossy roofing tiles.”
    CColin
  • “We used Chiltern for patio cleaning and we were very impressed! Our patio which was looking extremely sorry for itself is like new! I would definitely recommend. The team were very friendly and efficient.”
    CLClaire Lee
  • “Incredible job thank you! My patio had become badly stained from over-cleaning and really needed resealing.”
    BBookTravelBetter
  • “Meticulous, professional, paid attention to detail - our driveway and patios look brand new.”
    LHLinda HopkinsonMarlow
  • “Professional, knowledgeable and friendly. Highly recommend.”
    DODavid OsborneMarlow
  • “It's rare to find someone who is both highly skilled and genuinely nice to deal with.”
    TWThe Williamson TravelsMarlow

Questions

Soft Wash Treatment in Medmenham: your questions

Can flint and brick cottage walls be soft washed safely?

Yes, with low pressure and care around the joints. Flint walls depend on their pointing, and lime mortar is soft. The solution does the cleaning, the rinse is gentle, and any loose pointing is shown to you rather than washed further.

Can garden and boundary walls be included?

Yes. Freestanding walls are assessed separately from the house, including their copings, mortar and the planting around them. They are often greener than the house because they are exposed on both faces and along the top.

Will treatment or rinse water end up in the river?

No, not if the job is planned properly, and that planning happens before we start. We decide the rinse direction and containment for the property, keep the solution to the surfaces that need it and protect planting and paving around the wall.

Why do old repairs look more obvious after cleaning?

Because the green film was hiding them. Replacement bricks, newer mortar and patched render differ in colour and age from the original wall, and once the growth has gone those differences show. That is the wall's real appearance, not a fault in the clean.

Can you soft wash rough-cast or textured render?

Yes, where the render is sound. The solution reaches into the texture and acts on the growth there, so there is no need for pressure that would wear down the raised surface.

Will every dark mark come off?

No. Soft washing is for biological growth. Rust, mineral deposits, old paint and adhesive marks are a different matter and may need another method or may remain. We identify them at the site visit so you know beforehand.

Will soft washing stop the stain under our overflow pipe?

Only for a while. It removes the growth the leak has encouraged, but the stain will come back while water keeps running down the wall. Repairing the overflow is what stops it returning.

More from us

Other services in Medmenham

  • Sandstone entrance steps after cleaning, the stone pale and even from the path to the door
    Winter service

    Slippery Paths, Steps and Patios

    Winter cleaning that removes slippery algae and moss from paths, steps and patios, planned around the forecast.

    • Slippery growth removed
    • Planned around frost
    • Chiltern EverGuard™ where suitable
    Learn Moreabout Slippery Paths, Steps and Patios

Looking after a commercial building, a managed site or a portfolio? Render and masonry cleaning is handled by our commercial team, surveyed and priced as a specified job.

Chiltern Surface Co

Book a free site visit for your walls and copings.

We will look at the house, garden walls and copings with you, explain what is growth and what is age or repair, and recommend a method. A clear quotation follows the visit.

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