
Stone and masonry facades
Restore Your Stoneworkwith Stockport's Steam Cleaning Team
Lift years of dirt, algae and staining from stonework and bring back its original colour, with DOFF steam cleaning that respects the stone.
Service overview
Stone Cleaning Explained
What it is
Stone cleaning removes built-up grime, carbon staining, algae and biological growth from natural stone using the DOFF superheated steam method at 150°C.
Who it's for
Owners of stone-built or stone-faced homes, period properties with stone details, listed buildings, and anyone with blackened or green-stained stonework.
When you need it
When stone has darkened, turned green, or looks tired; before selling; before repairs or repointing; or as part of ongoing care for a period building.
Why professional work matters
Stone is easily damaged by the wrong cleaning. High-pressure washing and blasting can erode the surface and open it up to faster decay. Steam is a gentler, controlled approach.
The cost of waiting
What Happens If
You Leave It
Dirt and biological growth hold moisture against stone. Over time that accelerates weathering and makes the whole building look neglected.
Risks & escalating costs
- Algae and lichen retain moisture on the surface
- Dark staining hides cracks and defects that need attention
- Aggressive DIY cleaning can permanently scar stone
- Neglected stonework reduces a property's appeal
Common mistakes
- Using a high-pressure washer on soft stone
- Applying bleach or harsh chemicals that stain or damage
- Cleaning without checking the condition of mortar joints
- Assuming dirty stone needs replacing rather than cleaning
How it works
Five Clear Steps
- 01
Assess the stone
Mark looks at the stone type, staining and access.
- 02
Quote & explain
A clear quote and an explanation of the steam method.
- 03
Protect
Surrounding windows, doors and planting are protected.
- 04
Steam clean
DOFF steam at 150°C lifts grime section by section.
- 05
Review & guarantee
You see the result, the site is cleared, and work is covered by the 5-year workmanship guarantee.
What you get
The Result You're Paying For
Original colour restored
Brings stonework back towards its natural tone.
Gentle method
Heat at low pressure rather than blasting.
Reveals defects early
Clean stone shows cracks or joints that need attention.
Period expertise
Experience of restoration work on a listed building.
Guaranteed
5-year workmanship guarantee and £1 million public liability insurance.
Clear communication
Reviewers repeatedly praise Mark's communication.
In detail
Stone Cleaning: Materials, Methods & Options
Why steam suits stone
Natural stones like sandstone vary in hardness. Steam's heat breaks down grime and kills biological growth without the cutting action of abrasive methods, helping preserve the stone's surface.
Types of staining
Carbon staining from traffic and old coal fires, green algae, black biological growth, lichen and general atmospheric dirt all respond differently. Mark assesses what's on the stone before cleaning.
Facades, walls and features
Stone cleaning suits front elevations, window surrounds, lintels, sills, boundary walls, steps and decorative features.
After cleaning
Cleaning often reveals eroded mortar joints. Lime pointing is the correct repair for most period stonework. Mark offers this as a separate service.
Local stone and the North West
Many older properties across Stockport, Cheshire and Greater Manchester feature sandstone in walls, lintels, sills, steps and boundary walls. Sandstone is relatively soft and porous, which is exactly why it darkens with atmospheric pollution and why it's so easily damaged by aggressive cleaning. A controlled, heat-based method respects the stone while lifting the dirt.
Cleaning as part of maintenance
Clean stone makes defects easy to see. Cracked sills, open joints and failing mortar become obvious once decades of grime are removed. Treating cleaning as the first step of a maintenance plan, followed by lime pointing or repairs where needed, protects the building for the long term rather than just improving its appearance.
Protecting the surroundings
Steam cleaning produces run-off and mist, so windows, doors, plants and paving are protected before work starts. Access is planned in advance, particularly for upper storeys and chimneys.
Residential and heritage properties
Stone cleaning suits everything from a terraced house with stone details to larger detached period homes and listed buildings. Owners of listed buildings should confirm any consent needed with their local authority before cleaning, as it changes the appearance of the facade.
Cleaning boundary walls, steps and features
It isn't only facades that benefit. Stone boundary walls, gate piers, steps, copings and window surrounds collect grime and algae just as quickly, and cleaning them together with the main elevation gives a consistent, finished look. Steps and paths that turn green can also become slippery in wet weather, so cleaning them improves safety as well as appearance. Mark will look at the whole frontage and suggest what makes sense to include, so you get one tidy result rather than a clean house behind a dirty wall.
Stone Cleaning across Stockport, Cheshire & Greater Manchester
Mark is based at Middle Hillgate in Stockport and carries out stone cleaning for homes across Cheshire and Greater Manchester, including Macclesfield, Stockport and Wilmslow. Reviews from Sale, Bury, Heywood and Knutsford describe the same things: fast responses, tidy working and clear communication. Mark works on every job personally, supported by trusted subcontractors when a project needs extra hands. You can call 24 hours a day, and on-site hours are typically 7:30am–5:00pm, agreed with you in advance.
How to choose the right tradesman for stone cleaning
The quality of stone cleaning depends almost entirely on who carries it out. Before you book anyone, ask four simple questions. Who will actually be on site doing the work? What exactly is included in the quote: preparation, materials, protection and clearing up? Is the work guaranteed, and for how long? And is the business insured if something goes wrong? A tradesman who answers clearly and puts it in writing is far less likely to leave you with a problem.
With Mark Cobham Plastering Services, the answers are straightforward. Mark works on every job personally, drawing on 12 years of hands-on experience, and brings in trusted subcontractors only when a project needs extra hands. Work is backed by a 5-year workmanship guarantee, and the business holds £1 million public liability insurance. Prices aren't published online because every wall is different; instead you get a clear quote for your specific job, with the options explained honestly.
Reviews tell the same story. One Knutsford customer chose Mark "after being let down by a typical cowboy previously" and described him as professional, courteous and in regular contact at every stage. A Bury customer said his quotes were within budget and they've employed him again since. Others mention a fast response, tidy working and a finish they're proud of. That track record sits behind a 5.0-star Google rating.
What Customers Say
“Mark and his crew were very friendly, professional and did an excellent quality job on re-rendering the back wall of my house... great work at a fair price.”
“Replacing the old, tired render from the top half of the house and replacing with K-Rend. It was a pleasure to have a job done by such professionals.”
“Mark plastered our living room and downstairs cloakroom. He did a fantastic job, was very polite and punctual.”
“Mark has done a fantastic job rendering our house, he is so reliable... the quality of work is excellent.”
“Excellent, Mark is a very conscientious and hard working young man... his quotes were within budget and I was so happy with his work that I have employed him since.”
“Great job for a young lad, highly recommended him and reasonably priced.”
Every job is different, so prices aren't listed online. Mark looks at the size, condition and access of your walls and gives you a clear quote for your specific job: call 07969 801136 or send your details through the form.
The DOFF method uses heat at low pressure rather than abrasion, which is why it's used for sympathetic restoration.
It depends on the area and the type of staining. You'll get a realistic timeframe with your quote.
Superheated steam is effective at removing biological growth from the surface.
Mark has restoration experience on a listed building. Check consent requirements with your local authority first.
It depends on location, exposure and surroundings. Mark can advise on keeping stonework in good condition.
Yes. All work is backed by a 5-year workmanship guarantee, and the business holds £1 million public liability insurance.
You can call 24 hours a day. Out of hours, leave a message and Mark will get back to you. On-site hours are typically 7:30am–5:00pm, agreed with you in advance.
Related services
Areas covered
Not sure what your wall needs?
Call Mark on 07969 801136 and he'll talk you through the options.
Get Stone Cleaning Done
Properly, First Time
Tell Mark about your job and get a clear quote. Every job is backed by a 5-year workmanship guarantee and £1 million public liability insurance.

