Professional Indian-sandstone cleaning and black-spot treatment across Nottingham, Derby and nearby areas. RMS cleans weathered sandstone patios, paths and steps using a method selected for the stone, pointing, staining and existing condition.
Indian sandstone is attractive because of its natural colour variation and riven texture, but its porous surface can hold algae, lichen and established black-spot growth. Excessive pressure can mark softer stone or disturb joints, so treatment must be based on an inspection rather than one setting for every patio.
Cleaning Weathered Indian Sandstone
Before work starts, we check the slabs, joints, edges, drainage, loose areas and any previous sealer. We identify surface dirt, moss, algae, black spot, rust, oil and other staining because each problem can respond differently.
Black-spot and lichen treatment
Black spot is established lichen growth that can become rooted within a porous surface. It may require a suitable treatment and controlled cleaning rather than pressure alone. Results depend on the stone, severity, age of staining and previous products, so complete removal cannot be promised without assessment.
Algae and moss removal
Damp and shaded patios can become slippery and discoloured. Cleaning can remove built-up organic growth and improve the appearance, while attention to drainage and nearby planting may help identify why areas remain wet.
Pointing and loose-slab assessment
Failed joints or loose paving should not be ignored. RMS can assess small repointing or paving repairs alongside cleaning and describe these separately in the quotation.
Our Sandstone Cleaning Process
- Inspect: Identify the stone, stains, joints, access and drainage.
- Agree expectations: Explain likely results and any treatment limitations.
- Prepare: Consider doors, walls, furniture, plants and runoff.
- Treat and clean: Use a controlled method appropriate for the sandstone.
- Assess joints: Identify pointing or isolated paving repairs.
- Optional sealing: Consider a suitable finish only after correct preparation and drying.
Sandstone Restoration Options
- Routine patio and path cleaning
- Targeted black-spot and lichen treatment
- Joint repairs and repointing
- Isolated lifting and re-laying of loose slabs
- Replacement of damaged slabs where matches are available
- Optional sealing for suitable prepared stone
Why Choose RMS?
- 11 years of exterior-cleaning experience
- More than 25 years of paving and building knowledge
- Surface-specific cleaning rather than maximum pressure
- Cleaning and practical patio repairs from one business
- Honest explanations about staining and expected results
Areas We Cover
We clean Indian sandstone around Brinsley, Eastwood, Heanor, Ilkeston, Kimberley, Nuthall, Hucknall and surrounding Nottinghamshire and Derbyshire. See our patio and natural-stone cleaning page for other materials.
Request an Indian-Sandstone Quote
Send wide photographs, close views of the staining and joints, approximate measurements and your postcode. Mention whether black spot, loose slabs or damaged pointing are the main concern.
Request a free quotation Call 01773 434412
Indian-Sandstone Questions
Will pressure washing remove all black spot?
Not always. Established lichen may need specialist treatment, and excessive pressure can damage the stone. We assess the surface and explain a realistic result.
Can you repoint the patio afterwards?
Yes, defective joints can be assessed and quoted separately. The suitable jointing method depends on the paving and existing construction.
Should Indian sandstone be sealed?
Sealing is optional, not automatic. The stone, moisture, previous products and desired appearance must be considered before recommending it.
Exterior Cleaning Areas We Cover
Our Indian sandstone cleaning and black-spot removal service is available across these nearby areas: