Professional Deck Cleaning Services
Expert low-pressure timber and composite deck cleaning, restoration and maintenance throughout New Zealand. Eco-friendly, fully insured and available 7 days — free no-obligation quote in minutes.
New Zealand's Trusted Deck Cleaning Experts
Metro Water Blasting provides professional deck cleaning services throughout New Zealand, delivering visible results at competitive prices. Whether your deck is built from native timber, treated pine, hardwood or composite materials, our skilled team uses a certified low-pressure soft-wash system that deep-cleans without causing surface damage. We cover every city — Auckland, Wellington, Christchurch, Hamilton, Tauranga, Palmerston North and Queenstown — with dedicated local crews available 7 days.
A neglected deck isn't just an eyesore — mould, algae and grime break down timber fibres over time, significantly shortening your deck's lifespan. Our professional deck cleaning service removes years of buildup in a single visit, restoring the timber's natural colour and preparing it perfectly for staining or sealing if required.
Low Pressure Deck Cleaning
Are you noticing your deck becoming shabby and covered in unsightly grime, mould or black algae? Our low-pressure deck cleaning service is the most effective — and safest — way to restore your deck. High-pressure washing can splinter timber and void composite warranties. Our soft-wash method uses calibrated, low-pressure water combined with professional-grade, eco-friendly cleaning solutions to lift grime from the surface without causing any damage.
Every deck requires a different level of chemical treatment and water pressure — something only achievable with genuine expertise. With years of experience in outdoor surface restoration across New Zealand, our local teams know exactly what your deck needs to come back to life.
We Clean Every Deck Type
Whether your deck is ageing timber or modern composite, Metro has the right technique and cleaning solution for the job.
Timber Decks
Native and exotic timber decks including pine, kwila, vitex and rimu. Our low-pressure method cleans without raising the grain or causing splintering.
Composite Decks
Composite and PVC decking requires lower pressure and specific solutions. We're experienced with all major NZ composite brands — no surface damage, guaranteed.
Hardwood Decks
Dense hardwoods like kwila and jarrah need careful chemical selection. Our team tailors the treatment to the specific wood species and its current condition.
Decks Around Pools
Pool decks accumulate algae, chemical residue and mineral staining. We use solutions safe for pool water and surrounding vegetation.
Commercial Decking
Restaurants, hotels and commercial properties trust Metro for regular deck maintenance that keeps shared spaces safe, clean and compliant.
Balconies & Raised Decks
Our height-certified crew safely cleans raised decks and balconies of all sizes — no job is too high or too complex for our experienced team.
Why New Zealand Homeowners Choose Metro
From Ponsonby to Papakura, Karori to Cashmere — homeowners and property managers across New Zealand choose Metro for deck cleaning that delivers real, lasting results.
10+ Years Experience
We've cleaned thousands of decks across NZ and know every surface type, every timber species and every cleaning challenge.
Fully Insured & Certified
Our teams are height certified and fully insured. Professional crew on every job — no sub-contractors.
Eco-Friendly Products
All cleaning solutions are biodegradable and safe for gardens, pets, children and surrounding waterways.
Available 7 Days
We work around your schedule, including weekends across all New Zealand cities.
5-Star Rated
Over 200 verified Google reviews. Consistently rated the best deck cleaning service across New Zealand.
Free No-Obligation Quotes
Fast, free and zero pressure. Get your deck cleaning quote in minutes.
Our Deck Cleaning Process
Every deck cleaning job follows the same thorough process — ensuring consistent, professional results every single time.
Assessment
We assess the deck surface, timber type and level of grime to select the right cleaning solution and pressure setting for your specific deck.
Pre-Treatment
An eco-friendly pre-treatment solution is applied to break down mould, algae and organic staining before the cleaning begins.
Low-Pressure Wash
Calibrated low-pressure water removes all grime, mould and staining — working with the timber grain, never against it.
Final Rinse & Inspect
A thorough rinse removes all chemical residue. We inspect the result and advise on sealing or staining if the timber needs further protection.
Deck Cleaning Across New Zealand
Metro has local teams in every major New Zealand city, meaning you get a technician who knows your area, your climate and your deck type.
Auckland
North Shore · Remuera · Ponsonby · Henderson · Botany · Manukau · Papakura
Wellington
Karori · Kelburn · Island Bay · Lower Hutt · Porirua · Paraparaumu
Christchurch
Merivale · Riccarton · Cashmere · Burnside · Halswell · Rolleston
Hamilton
Rototuna · Hillcrest · Chartwell · Dinsdale · Cambridge · Te Awamutu
Tauranga
Mt Maunganui · Papamoa · Bethlehem · Otumoetai · Omokoroa · Te Puke
Palmerston North
Hokowhitu · Milson · Kelvin Grove · Awapuni · Feilding · Ashhurst
Queenstown
Frankton · Arrowtown · Wanaka · Lake Hayes · Jacks Point · Cromwell
Not sure we cover you?
Call us and we'll confirm — we cover many more suburbs than listed here.
0800 997 997What Our Customers Say
Over 200 five-star Google reviews from real customers across New Zealand.
Deck Cleaning FAQs
Deck cleaning removes dirt, grime, mould, mildew and stains that accumulate over time. Regular professional cleaning enhances appearance, prolongs the deck's lifespan and ensures a safe, attractive outdoor space. Mould and algae actively break down timber fibres — leaving it untreated significantly shortens your deck's life.
We recommend cleaning your deck at least once a year, ideally in spring before the outdoor entertaining season. Decks in damp, shaded environments — common in Wellington, Auckland and Queenstown — may benefit from cleaning every 6 months.
No. High-pressure washing can splinter timber, raise the grain and damage composite surfaces — and may void manufacturer warranties. Metro uses a calibrated low-pressure soft-wash technique that deep-cleans without causing any surface damage.
Yes. Composite and PVC decks need specific low-pressure settings and appropriate cleaning solutions to avoid surface damage. Metro's team is experienced with all major NZ composite deck brands and guarantees no surface damage.
We recommend waiting 2–4 days after cleaning to allow the timber to thoroughly dry before applying stain or sealant. This ensures better adhesion and a longer-lasting finish.
Cost depends on deck size, surface type and level of grime. Metro offers free, no-obligation quotes — call 0800 997 997 or fill in the quote form for a fast, competitive price tailored to your specific deck.
Trim nearby foliage to improve airflow, ensure proper drainage around the deck, sweep off debris regularly and apply a water-resistant sealer after cleaning. Metro can advise on the best maintenance plan for your specific deck and location.
Yes. Metro has dedicated local teams in Auckland, Wellington, Christchurch, Hamilton, Tauranga, Palmerston North and Queenstown — covering all major NZ cities and their surrounding suburbs. Call 0800 997 997 to confirm coverage for your area.
Ready to Restore Your Deck?
Professional low-pressure deck cleaning across New Zealand. Eco-friendly, fully insured and available 7 days. Get your free no-obligation quote in minutes.
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