CERTIFIED PLUMBERS & GASFITTERS — CHRISTCHURCH, NZ
Dewaters Plumbing & Gas does one thing most Christchurch plumbers treat as an afterthought — and does it properly: hot water, done right, by people certified to touch gas.
We are certified plumbers and gas fitters, and proud members of Master Plumbers New Zealand. That matters most where gas is involved: a continuous-flow gas conversion is not a Saturday job, it is regulated work, and it has to be signed off by someone licensed to do it. We do the full job — supply, install, commissioning, and the paperwork — and we guarantee our workmanship 100%.
Most of our week is residential: families in Christchurch and the surrounding towns who are done with cold showers from a tired old cylinder. The rest is commercial and new builds — full plumbing and drainage, bathroom and kitchen refits, and gasfitting for kitchens that run on gas. Fast, friendly service at a competitive price. That is the whole pitch, and we stand behind it.
Our speciality. We convert tired cylinder setups to compact continuous-flow gas units with optional temperature controllers — hot water that virtually never runs out, and no bulky tank eating cupboard space.
Where gas is not an option, a new mains pressure cylinder delivers high-pressure hot water straight off the existing supply. We size it to the household, not the catalogue.
Certified gas fitters for residential and commercial work: gas hot water, cooktops and kitchen appliances, new home builds and renovations. Legal, certified, signed off.
Everything else with pipes in it: maintenance, repairs, new installations for homes and businesses across Christchurch. If it carries water, we fix it or fit it.
Full plumbing for refits — rough-in to fit-off, new layouts, moving waste and water to where the new design needs them.
Complete plumbing, drainage and gasfitting packages for new builds, coordinated with your builder from slab to handover.
Straightforward toilet supply and install, done in a visit — the small jobs get the same workmanship guarantee as the big ones.
When pressure drops in the supply, water can flow backwards into the network. We install and service backflow prevention devices that keep the mains safe — a legal requirement in many commercial settings.
Christchurch water chlorination has plenty of locals asking questions. We supply and install quality filters that work on your existing tap.
A typical conversion: out goes the 180-litre cylinder, in goes a wall-hung continuous-flow unit. The laundry cupboard gets its space back, and the last person in the shower gets the same hot water as the first. Most conversions are done in a day.
Not every street has gas. For electric homes we fit mains pressure cylinders matched to household size and shower count — proper pressure at every tap, and a cylinder that is not working itself to death.
Bathroom and kitchen refits live or die on the plumbing rough-in. We work off your plans — or your builder's — and set every waste, water and gas point exactly where the new layout needs it before the walls close up.
The unglamorous work that keeps water safe: backflow prevention devices for commercial sites, and under-sink filtration for homes that want better-tasting water from the existing tap.
Most of our week. Hot water conversions, cylinder replacements, renovation plumbing, and the everyday repairs that keep a house running.
New builds, fit-outs and compliance work for Christchurch businesses — plumbed, drained and gasfitted to code, on the builder's programme.
Tell us what is wrong or what you want changed. Photos help. We will tell you straight away if it sounds like a quick fix or a site visit.
For hot water and renovations we visit, measure, and check gas availability and flue routes — no guessing.
One price for the whole job, in writing, before we start. No hourly creep.
Licensed plumbers and gas fitters do the work, test everything, and sign off what the law requires.
Our workmanship is 100% guaranteed. If something we fitted is not right, we come back and make it right.
| SERVICE | GUIDE PRICE | |
|---|---|---|
| Continuous gas hot water conversionUnit supply, install, flue, commissioning & certification | $X,XXX | SAMPLE |
| Mains pressure cylinder replacementLike-for-like swap, sized to household | $X,XXX | SAMPLE |
| New toilet supply & installMid-range suite, existing pipework | $XXX | SAMPLE |
| Under-sink water filterSupply & install on existing tap | $XXX | SAMPLE |
Indicative only — every house is different. Final quotes are fixed and in writing after we have seen the job.
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Yes — it is our speciality. We convert old cylinder setups to continuous-flow gas units: compact, wall-hung, with optional temperature controllers, so hot water virtually never runs out. Supply, install, flue, commissioning and certification are all handled by our certified gas fitters.
It depends on whether gas is available at your street. Gas gives endless hot water and usually lower running costs; where gas is not an option, a correctly sized mains pressure electric cylinder is the right answer. We will check both and quote honestly.
Yes. We are certified plumbers and gas fitters, members of Master Plumbers New Zealand, and we guarantee our workmanship 100%. Gas work is signed off as the law requires.
Christchurch and the surrounding areas — from the central suburbs out to Rangiora, Kaiapoi, Rolleston and Lincoln. If you are on the edge, just ask.
Call (555) 010-2030 or send the form below. Tell us the job and send photos if you can. Straightforward jobs get a price over the phone; hot water and renovations get a site visit and a fixed written quote.
Serving Christchurch and surrounding areas — residential and commercial, from quick repairs to full hot water conversions.