Office Fit-OutsNew kitchenettes, bathrooms, or laundry facilities? We design, supply, and install commercial plumbing for office fit-outs and refurbishments to Wellingtonbuilding code — coordinating with your project manager and builder from consent through to completion.
Commercial Plumbing in Wellington, Porirua & Hutt Valley
Stop running out of hot water with Wellington’s trusted cylinder installation and replacement specialists.
Commercial Plumbing That Keeps YourBusiness Running
Commercial plumbing isn't the same as residential. Downtime costs money, compliance is non-negotiable, and a fault in a shared water system can affect an entire building. That's why Wellington businesses trust Maxey Plumbing & Gas to get it right.
Master Plumbers Quality Guarantee: As certified Master Plumbers, every job comes with the Master Plumbers guarantee — giving your business and insurer confidence that the work meets the highest professional standard in New Zealand.
Full Compliance Documentation: We provide Gas Safety Certificates, plumbing compliance documentation, and all sign-off paperwork your property manager, body corporate, or insurer needs — no chasing required.
Planned Maintenance, Not Panic Repairs: Reactive plumbing is expensive. Our commercial maintenance contracts put regular inspections in your calendar before minor issues become costly emergencies or shut your business down.
Based in Wellington, Available City-wide: Operating out of Ngaio, we cover central Wellington, the Hutt Valley, and Porirua. Familiar faces, local knowledge, and reliable response times.
Everything Your Business Needs,
Under One Roof
From a single office fit-out to an ongoing maintenance contract across multiple sites, Maxey Plumbing & Gas has the certification, equipment, and experience to handle it.
Commercial Maintenance ContractsScheduled inspections, preventive maintenance, and priority response for your commercial premises. We keep your plumbing systems in check year-round — so you're not hit with emergency repair costs or compliance surprises.
Commercial Hot Water SystemsWe spec, supply, and install high-capacity hot water systems for offices, hospitality venues, and multi-tenancy buildings. As Wellington's authorised Rheem service centre, we can maintain or replace your existing system with minimal disruption.
Compliance & CertificationNeed a backflow prevention certificate? Thermostatic mixing valve test? Or a full WoF-style plumbing inspection before settlement or tenancy renewal? We provide the documentation that property managers, body corporates, and insurers require.
Why Commercial Hot Water Systems Need a Specialist
Commercial systems work harder than household ones, and getting them wrong costs more.
Sizing: An undersized system runs out mid-service. An oversized one wastes energy every day. We calculate your peak demand before recommending anything.
Compliance: Hot water must be stored hot enough to control Legionella and delivered at safe temperatures to basins and showers under the NZ Building Code. We fit and check tempering valves so you meet both.
Downtime: Replacements are planned with you in advance, with the new system ready to connect on the day, so the changeover is as quick as possible.
Warranty: As an Authorised Rheem Service Centre, we carry out warranty repairs directly, with no middleman.
Our Commercial Process
Commercial systems work harder than household ones, and getting them wrong costs more.
Site assessment: We look at your current system, peak demand and gas or power supply.
Clear quote: A written, fixed quote with the system, installation and any compliance work spelled out.
Planned install: Scheduled with you in advance to minimise disruption, with old units removed and disposed of.
Sign-off and servicing: Gas certificates and compliance paperwork provided, and the option to add your system to a Maxey maintenance plan.
Not sure which suit hot water system suits your business? We'll assess your site, usage and energy supply and give you a straight recommendation. We'll also recommend a servicing interval based on your system and how hard it works, then book it in for you so you don't have to remember. Regular servicing also helps protect your manufacturer warranty.
What Our Customers Say
Frequently Asked Questions
Do you offer commercial plumbing maintenance contracts?
Yes. A maintenance contract is the most cost-effective way to manage plumbing across a commercial premises. We schedule regular inspections, catch problems before they escalate, and give contract clients priority response when something does go wrong. Contact us to talk through a contract that fits your building and budget.
Can you handle office fit-out plumbing from consent through to completion?
Yes. We scope the plumbing requirements, advise on what building consent is needed, coordinate with your builder or project manager, and carry out all plumbing and gasfitting work. At the end, we provide full compliance documentation — so your fit-out is properly signed off and ready for occupation.
What compliance certificates do you provide for commercial jobs?
Depending on the work, we provide plumbing compliance sign-offs, Gas Safety Certificates (required under NZS 5261 for all gasfitting work), backflow prevention certification, and TMV testing records. You receive everything your property manager, body corporate, or insurer is likely to ask for.
What areas do you cover for commercial plumbing work?
We cover the Greater Wellington Region — Wellington City (including the CBD), Lower and Upper Hutt, Porirua, and the surrounding suburbs. We're based in Ngaio, which puts us close to most Wellington commercial premises. Can't see your area listed? Call 04 390 0135 and we'll let you know if we can get someone to you.
How quickly can you respond to a commercial hot water breakdown?
Commercial breakdowns are prioritised. Call before midday for the best chance of a same-day visit anywhere in Wellington City, the Hutt Valley or Porirua. Most repairs are completed on the first visit.
How long does a hot water cylinder installation take?
A standard replacement usually takes 6+ hours. A full mains pressure hot water cylinder installation in Wellington may take a full day to ensure all pipework is properly upgraded and tested.
Is continuous flow gas or a heat pump cheaper to run?
It depends on your usage and energy prices. Heat pumps usually have the lowest running costs for steady daily demand, while continuous flow gas suits sites with big peaks, like a cafe at lunchtime. We'll compare both for your site.
Rheem Service Centre
As an Authorised Rheem Service Centre, we provide expert warranty repairs and high-efficiency cylinder replacements.
Mico Plumbing
Proudly partnered with Mico to source the highest quality components for every Wellington installation.
Rinnai
Specialists in Rinnai gas continuous flow upgrades for endless hot water and space-saving solutions.
Master Plumbers
Every project is backed by the Master Plumbers Guarantee, giving you the ultimate peace of mind.
Proudly Serving the Greater Wellington Region
We are on the road daily, providing expert plumbing, gasfitting, and drainage services to homeowners and businesses across the entire region. Whether you are in a hilltop villa in Kelburn or a new build in Churton Park, the Maxey team is just a phone call away.
Wellington City: CBD, Te Aro, Kelburn, Karori, Khandallah, Johnsonville, Tawa and the Eastern Suburbs.
Hutt Valley: Lower Hutt, Upper Hutt, Petone, Wainuiomata, and Eastbourne.
Porirua: Whitby, Mana, Titahi Bay and Paremata.
Can’t see your suburb listed? Give us a call on 04 390 0135. We likely have a van in your area and can get a specialist to your door quickly.
Ready for Better Hot Water?
Experience the difference of a professional installation. Get your free, no-obligation quote from Wellington’s hot water specialists.
