Finding the best water tank installation in Napier starts with knowing whether you need a rainwater tank for the garden, a household drinking water supply or a large rural storage setup. Water tank installation in Napier covers the tank itself, the site preparation, the pump and pressure system and the filtration that makes stored rainwater safe to drink, and the businesses below handle that work from Onekawa, Twyford and Hastings for homes, lifestyle blocks and farms across Hawke’s Bay. Think Water Hawke’s Bay and No Drips Plumbing & Drainage are both good places to start.
1Think Water Hawke’s Bay
Think Water Hawke’s Bay is a water management business with a store at 1 Dunlop Road in Onekawa and a second in Hastings, serving the region since 2004 after starting out as Total Plumbing and Irrigation. Its own plumbers, drainlayers and gasfitters handle water tank and rain harvesting installations for residential and farm clients, alongside pumping, UV filtration and irrigation. It suits homeowners and rural clients who want the tank, pump and treatment designed, supplied and installed by one team.
Services
- Water tank and rain harvesting installation
- Domestic, stock water and irrigation pumps, supply and breakdown repair
- UV and water filtration systems, supplied, installed and maintained
- Plumbing, drainlaying and septic systems
- Water meter verification
Highlights
- Serving Hawke’s Bay since 2004
- In-house team of qualified plumbers, drainlayers and gasfitters
- Devan tanks among its preferred suppliers, with first flush diverters fitted on rain harvesting jobs
- Blue Tick accreditation for water meter verification
- Independently assessed each year for SiteWise certification
Location & Contact
Name: Think Water Hawke’s Bay
Address: 1 Dunlop Road, Onekawa, Napier 4110
Phone: 06 842 0047
Website: thinkwater.co.nz/hawkes-bay
2No Drips Plumbing & Drainage
No Drips is a Napier-based plumbing and drainage business led by owner Ian McDonald, working across Napier, Hastings, Havelock North and Central Hawke’s Bay. It supplies and installs rainwater and storage tanks for homes, gardens and rural properties, and connects the pumps and pressure systems that go with them. A good fit for homeowners who want a licensed plumber to install a new tank or repair and service an existing one.
Services
- Supply and install of rainwater and storage tanks
- Tank repairs, including leaks, cracks and pump faults
- Pump installation and servicing
- Tank cleaning and maintenance
Highlights
- Owner operated, with more than 15 years of plumbing experience
- Master Plumbers member
- Also designs and installs septic tanks and wastewater systems
- Covers rural Central Hawke’s Bay as well as Napier and Hastings
Location & Contact
Name: No Drips Plumbing & Drainage
Address: Napier
Phone: 06 833 6247
Website: nodrips.nz
3SWD Wastewater and Drainage
SWD is a family-owned Hawke’s Bay business based on Omahu Road in Twyford, best known for onsite wastewater and septic systems, with a dedicated rainwater tank service that covers Napier, Hastings, Havelock North, Central Hawke’s Bay, Mahia and Wairoa. It supplies plastic, concrete and slimline tanks and handles site preparation, tank placement and connection to the house or irrigation. It suits rural and lifestyle properties that want earthworks, tank and filtration handled together.
Services
- Plastic, concrete, slimline and heavy-duty rainwater tanks
- Site preparation, excavation and tank placement
- Filtration and UV treatment for drinking water
- Pumps and pressure systems
- Potable water reticulation design and installation
Highlights
- Hawke’s Bay Regional Council approved and accredited designer and installer
- More than 20 years in the wastewater industry
- Agent for Wright Tanks wastewater treatment plants
- In-house earthworks and excavation operators
Location & Contact
Name: SWD Wastewater and Drainage
Address: 1549 Omahu Road, Twyford, Hastings
Phone: 027 333 8212
Website: swdnz.co.nz
4Isaac’s Plumbing, Pumping & Electrical
Isaac’s is a Hawke’s Bay plumbing, pumping, electrical and solar business with branches on Karamu Road North in Hastings and in Waipukurau, installing and servicing water tanks across Hastings, Napier and the wider region. It installs Devan and Bailey polyethylene tanks, from urban rainwater storage to agri, fire and industrial tanks, and offers cleaning and scheduled inspections. It suits rural, commercial and residential clients who want the tank, pump and electrical work covered by one contractor.
Services
- Water tank installation, including site assessment and testing
- Water tank repair, leak detection and water quality testing
- Water tank cleaning
- Monthly servicing and inspections
Highlights
- Devan and Bailey domestic tank range with a 20-year warranty
- 24-hour phone lines at both branches
- SiteWise Gold and Tōtika safety prequalification
- Pumping, electrical and solar teams under one roof
- Above ground, below ground, agri, fire and industrial tanks available
Location & Contact
Name: Isaac’s Plumbing, Pumping & Electrical
Address: 804 Karamu Road North, Hastings 4122
Phone: 06 651 1686
Website: isaacshb.co.nz
5Mayfield Plumbing
Mayfield Plumbing is a locally owned, family-run plumbing and gas business operating out of Napier, led by certified plumber Jarrod Soar. Water tanks and pumps are one of its general plumbing services, alongside water filtration, hot water and drainage. It suits Napier households looking to add a rainwater tank as part of wider plumbing work.
Services
- Rainwater tank and pump installation
- Water filtration systems
- Hot water systems
- Maintenance and repairs
- Unblocking drains and pipes
Highlights
- Family-run and locally owned
- Team led by a plumber with more than 10 years of experience
- Certifying plumber
Location & Contact
Name: Mayfield Plumbing
Address: Napier
Phone: 027 350 4850
Website: mayfieldplumbing.co.nz
Water Tank Installation in Napier at a Glance
| Business | Highlight |
|---|---|
| Think Water Hawke's Bay | Serving Hawke's Bay since 2004 |
| No Drips Plumbing & Drainage | Owner operated, with more than 15 years of plumbing experience |
| SWD Wastewater and Drainage | Hawke's Bay Regional Council approved and accredited designer and ins... |
| Isaac's Plumbing, Pumping & Electrical | Devan and Bailey domestic tank range with a 20-year warranty |
| Mayfield Plumbing | Family-run and locally owned |
How to Choose the Right Water Tank Installation in Napier
- Tank type and size: slimline tanks suit tight urban sections, while concrete, underground and large poly tanks suit lifestyle blocks and farms. Ask which materials and capacities the installer supplies.
- Drinking water or garden use: if the water is going to the house, ask about first flush diverters, filtration and UV treatment, not just the tank.
- Pumps and pressure: a tank is only as useful as its pump. Check the installer supplies, fits and services the pump and pressure system.
- Site preparation: tanks need a level, compacted base, and underground tanks need excavation. Confirm who does the earthworks.
- Licensed plumbing: connecting a tank to your household plumbing is regulated work, so use an installer with registered plumbers.
Frequently Asked Questions About Napier Water Tank Installation
How long does a water tank installation take?
A standard residential rainwater tank on a prepared site is usually a short job, while underground tanks and large rural systems take longer because of excavation, pipework and pump setup. Ask your installer for a timeframe when they quote.
What types of water tank can I get in Napier?
Installers around Napier supply plastic (polyethylene) tanks, concrete tanks and slimline tanks, plus heavy-duty tanks for farms, fire fighting and commercial use. Poly tanks are light and UV stabilised, concrete tanks suit underground installation, and slimline tanks fit narrow spaces beside a house.
Can I drink rainwater from my tank?
Yes, but only with the right setup. A drinking water system generally includes first flush diverters, filtration and UV treatment, and the tank should be cleaned periodically. Ask for a filtration and UV quote alongside the tank.
Do I need a plumber to connect a water tank?
Connecting a tank to your household water supply is plumbing work and should be done by a registered plumber. You can check a plumber’s registration on the Plumbers, Gasfitters and Drainlayers Board public register.
Is there help with the cost of a rainwater tank in Hawke’s Bay?
The regional council has run a Sustainable Homes scheme that has helped with rainwater harvesting and septic upgrades. Check the Hawke’s Bay Regional Council website for what is currently available before you commit to a system.
Which parts of Napier do these installers cover?
Think Water Hawke’s Bay has a store in Onekawa, and No Drips and Mayfield Plumbing work out of Napier. SWD in Twyford and Isaac’s in Hastings also travel to Napier, and most Hawke’s Bay installers cover rural properties as well as town sections.
How often should a water tank be cleaned?
Sediment builds up at the bottom of any rainwater tank over time. Many installers offer tank cleaning and inspections, and regular servicing keeps drinking water clean and pumps running properly.
How We Chose the Best Water Tank Installation in Napier
Every business in this guide was found by searching for water tank installation in Napier, then checked against what the business publishes itself: its own website, or where it has none, its official social or booking page. Names, addresses and phone numbers come from those pages rather than a directory feed, so what you see here is what the business says about itself. We also check that each one is still trading and is actually based in or genuinely serving Napier, rather than a national operator running a local landing page. A business we can’t confirm from its own pages is not listed.