Remove stubborn moss, green algae, black spots (lichen) and years of grime from your patio. Expert power washing and power hosing for block paving, natural stone, porcelain and concrete across North and South Dublin.
There is a particular kind of disappointment in finally getting a sunny Saturday in Dublin and stepping out onto a patio that is green, slippery and grey with grime. By the time most homeowners notice, algae has worked its way deep into the surface and a garden hose will not make a dent.
Effective patio cleaning in Dublin needs more than blasting water at full pressure. Block paving, Indian sandstone, limestone, porcelain and concrete all react differently to pressure and cleaning agents. Get it wrong and you strip sealant, lift tile edges or push water under pointing — causing real damage.
At Reflect General Maintenance, we assess the surface first. We match our pressure, detergent and technique to the specific material — restoring patios, paths and garden slabs across North and South Dublin to a finish that actually lasts.
Every photo below is from a genuine job completed by our team. No stock images — just real patio cleaning results from Dublin homes.
From green, slippery algae buildup to a fully restored surface — surface-matched pressure, correct detergent, joints cleaned throughout.
Every patio surface needs a different approach. We match our technique — pressure, detergent, temperature — to the specific material. Not one setting for everything.
The most common patio type across Dublin gardens. Moss and algae build up in the joint sand, making surfaces dangerously slippery and allowing weeds to take hold between blocks. We clean the full surface and clear the joints properly — not just the visible top layer. Sand re-jointing available after cleaning.
Block PavingIndian sandstone is porous and sensitive — too much pressure or the wrong pH cleaner pits and lifts the surface permanently. We use low-pressure, pH-neutral detergent specifically suited to sandstone, restoring the warm tones without risking the material. A popular choice across Dublin gardens in recent years.
Natural StonePorcelain patios have become increasingly popular across Dublin — and they need a different approach to traditional paving. The surface is durable but grout lines and joints collect grime that standard cleaning misses. We use controlled pressure and surface-safe detergent to lift dirt from the tile and joints without damaging the glazed surface.
PorcelainLimestone and granite are dense, durable stones that still require surface-specific care. Limestone can be susceptible to acid-based cleaners; granite handles slightly more pressure but joint lines need attention. We carry the correct products for each stone type so the clean does not compromise the material long-term.
Natural StoneConcrete and flagstone patios handle higher pressure than natural stone but still develop persistent algae and black spot staining. We use professional-grade equipment to strip years of buildup on concrete paths, garden slabs and flagstone surfaces — recovering the original surface colour and texture throughout.
ConcreteResin bound driveways and patios need low-pressure washing — high-pressure equipment damages the resin surface and dislodges aggregate. We use soft-wash techniques and specialist cleaners that lift algae, moss and staining from resin surfaces without compromising the bound aggregate or surface integrity.
Resin BoundFrom green slime to black lichen, here is what we remove — and why each problem needs the right approach.
The most common Dublin patio problem. Green algae forms a slippery, wet film — especially in shaded gardens. It spreads fast on porous stone and block paving. Professional pressure washing with the right biocide removes it completely and prevents rapid regrowth.
Black spots — technically lichen — are among the most stubborn patio problems. They embed deep into the surface and resist ordinary pressure washing. We use a targeted treatment combined with rotary surface cleaning to remove lichen without damaging the stone or paving underneath.
Moss thrives in Dublin's damp climate and builds up quickly on shaded patios, paths and garden slabs. It creates slip hazards and works its way into joints, loosening paving over time. We remove moss completely and apply anti-moss treatment to slow regrowth after cleaning.
Weeds push up through joint sand and paving cracks, loosening the surface structure over time. We remove weeds as part of the patio cleaning process and — combined with sand re-jointing — significantly reduce regrowth by closing the gaps where seeds settle.
Oil stains, rust marks and general discolouration are common on driveways and patio areas near BBQs or garden furniture. We use targeted degreasers and stain-lifting products matched to the surface type to remove deep-set staining without bleaching or damaging the surrounding area.
Dark mould patches and watermark discolouration build up on patios exposed to pooled water or heavy shade. Left untreated, mould eats into porous stone and causes permanent surface damage. We remove mould and treat the surface to prevent return — particularly useful for north-facing Dublin gardens.
A clean patio is a result of doing each stage correctly, in the right order. Here is exactly what our patio cleaning process looks like from start to finish.
We assess surface type, extent of algae or lichen growth, joint condition and any problem staining before choosing the right pressure, detergent and approach.
A biodegradable biocide or pre-treatment solution is applied to the surface. This breaks down algae, moss and lichen before pressure washing — making removal more effective and reducing spore survival.
Professional pressure washing (power hosing) is applied at the correct PSI for the specific surface — block paving, natural stone, porcelain or concrete. Surface-matched to protect the material.
The most-missed step in DIY cleaning. We clean the full depth of joints where most weed and moss regrowth originates — not just the surface. Sand re-jointing available as an add-on.
A post-clean anti-moss treatment and optional patio sealing is applied. This closes surface pores, significantly slows regrowth and improves resistance to the next Dublin winter.
A clean patio without protection starts regrowing algae within months — especially in shaded Dublin gardens where moisture lingers longer.
Improves grip on wet patio surfaces. Particularly important for families with children or elderly relatives — and for any north-facing or shaded garden in Dublin.
Applied immediately after cleaning, our anti-moss biocide significantly slows lichen, algae and moss regrowth — keeping your patio looking clean between annual visits.
Patio sealing closes the surface pores where spores settle and germinate. Especially recommended after block paving cleaning and natural stone restoration in Dublin.
After deep joint cleaning, kiln-dried sand is re-applied to block paving joints — stabilising the surface and eliminating the gaps where weeds and moss take hold fastest.
A single post-clean treatment can extend the clean appearance of your patio by 12–18 months — particularly valuable in shaded Dublin gardens where algae returns fastest.
Also available:
Many Dublin homeowners consider hiring a pressure washer for a weekend before booking professionally. It is worth knowing the actual difference before deciding.
Honest, upfront pricing with no hidden extras. All prices include surface cleaning and joint treatment where applicable. We assess in person before quoting on larger jobs.
| Service / Surface | What's Included | Price |
|---|---|---|
| Standard Patio Clean (up to 20m²) | Block paving, concrete or mixed surface cleaning + joint treatment | From €80 |
| Porcelain Patio Cleaning | Controlled-pressure cleaning, grout line treatment, surface safe detergent | From €90 |
| Indian Sandstone / Natural Stone | Low-pressure wash, pH-neutral cleaner, assessed in person | Priced on Inspection |
| Anti-Slip Treatment (add-on) | Applied after cleaning — slows regrowth, improves wet grip | From €30 |
| Patio Sealing / Re-Sealing | Surface sealant applied post-clean — extends clean appearance | Quoted Separately |
| Sand Re-Jointing (Block Paving) | Kiln-dried jointing sand applied after cleaning | Quoted Separately |
| Large Patio / Full Garden Clean | Patio + paths + garden slabs — full outdoor surface restoration | After Site Visit |
Dublin homeowners choose Reflect because we do the job properly — right technique for the surface, joints cleaned, protection applied, no hidden costs.
Natural stone, porcelain, block paving and concrete all need different pressure and detergent. We assess before we start — never the same setting for every job.
Most moss and weed regrowth starts in the joints, not on the surface. We clean the full depth of every joint — the step most DIY and budget cleaners skip.
We offer post-clean biocide treatment and patio sealing — particularly valuable for shaded south-facing Dublin gardens where algae and moss return fastest.
We can show you genuine completed jobs from Dublin properties — not stock photos. See our gallery on the website or ask us to show examples when we quote.
We assess your patio in person and give a clear, honest price before any work starts. No guesswork, no pressure, no surprises on the day.
Based in Swords, fully insured on every job, with fast response across all of North and South Dublin. A local team you can actually call and trust.
Real reviews from real customers — verified on Google. 16 five-star reviews and counting.
"Had Kirk over to clean the back patio and clean and treat the pergola. Outstanding service from start to finish. Highly recommended."
"Excellent service, would definitely recommend. Covers a multitude of jobs with a real can-do attitude. Will be using Reflect General Maintenance in the future."
"Great job and service, very nice to deal with. Highly recommended!"
"Kirk has been to my house twice. Cleaned all the gutters and fascia both times — excellent work in all conditions."
"Did my windows and gutters — great job, no mess, no fuss. Will definitely be using them again."
"Great company. Really happy with the work."
South-facing gardens across Clontarf, Glasnevin and Raheny see the fastest algae buildup through summer — the combination of warmth and retained moisture creates ideal conditions for growth. We clean patios across all 26 Dublin areas. Not sure if we cover your location? Call 089 412 2011.
Everything Dublin homeowners ask us before booking a patio clean. Not here? Call 089 412 2011 and we will answer immediately.
A clean patio changes how often you step outside. Professional patio cleaning across all of Dublin — the right technique for your surface, honest pricing, and anti-moss protection to keep it looking good longer.