Step 1
Identify Materials And Joints
Natural stone, pavers, and poured concrete each get handled differently. We check the material and the joint condition before choosing method.
Flagstone terraces, pool surrounds, and garden paths under mature trees hold a slick film long before they look genuinely dirty.
Learn More About This ServiceHardscape on Indian Hill properties tends toward the substantial and the varied. Natural stone terraces, flagstone paths, paver patios, pool surrounds, and garden walks often exist on the same property, and each material wants a different pressure and approach. Natural stone in particular can be soft, irregular, and set in mortar joints that will not survive being blasted.
The woodland setting drives the growth. Under near-permanent shade, hardscape develops an algae film that is genuinely slippery when wet, and moss establishes in mortar joints, between flagstones, and along the shaded edges of terraces. Around a pool surround or on stone steps down to a lower garden, that stops being a cosmetic issue and becomes a safety one.
Leaf litter does the rest. Debris left sitting on stone through a wet autumn leaves dark tannin staining, and on porous natural stone that soaks in rather than sitting on the surface, so it needs pre-treatment rather than more pressure.
Flagstone and mortared joints do not tolerate concrete-grade pressure. We match the approach to the material rather than the other way round.
Algae film on shaded terraces, steps, and pool surrounds is slick when wet and builds gradually enough that people stop noticing it.
Moss establishes in mortar joints and between flagstones under heavy shade, and removing it is the first step before any repointing or sealing.
Leaf staining soaks into natural stone rather than sitting on it, so it responds to pre-treatment rather than to more pressure.
Step 1
Natural stone, pavers, and poured concrete each get handled differently. We check the material and the joint condition before choosing method.
Step 2
Furniture and planters are moved, then moss, algae, and tannin staining are pre-treated so they release without heavy pressure.
Step 3
Stone and pavers are cleaned gently to protect joints and softer material. Concrete gets an even surface-cleaner pass.
Step 4
Steps, edges, and borders are detailed by hand, everything is rinsed, and we flag joints that need repointing or re-sanding.
Is pressure washing safe on a flagstone terrace?
Only at the right pressure. Natural stone can be soft and the mortar joints between flagstones are the weak point. We clean stone at much lower pressure than concrete, because blown-out joints are a repointing job rather than a cleaning one.
My pool surround gets slippery. Will cleaning fix it?
Yes, and it is the most common reason we are called about a pool deck. The slipperiness is an algae film that forms on shaded surfaces, and it clears completely with proper treatment.
Can you clean the garden paths and steps too?
Yes, and they usually need it most. Paths and steps running through tree cover stay damp constantly, and shaded steps are where the slip risk is genuinely highest on these properties.
Will the dark staining under the trees come out of my stone?
Largely, with pre-treatment. Tannin soaks into porous natural stone, so it lightens substantially rather than vanishing entirely if it has been there for years. We will tell you what to expect before we start.
We also offer patio & walkway cleaning in nearby communities. Choose another area below.
Call, text, or fill out the form.
Fully insured • Free estimates • No obligation
We help homeowners across the Cincinnati area keep exterior surfaces clean, safe, and well maintained.
Service Area Map
Based in Cincinnati, we serve homeowners across Cincinnati and nearby communities.
Madeira
Loveland
Mason
West Chester
Liberty Township
Hyde Park
Pleasant Ridge
Sharonville
Milford
Batavia