Drainage work in Marlborough runs from new subdivision drainlaying and rural wastewater systems through to a blocked sewer line that needs clearing today, and the best drainage contractors in Blenheim cover both ends of that range. The firms below install and repair stormwater and wastewater drains, put in septic and secondary treatment systems, dig trenches and site works, and inspect pipework with drain cameras for homeowners, builders, vineyards and rural property owners. Lloyds Drainage and Blenheim Drainage & Digger Hire lead the list.
1Lloyds Drainage
Lloyds Drainage is a locally owned drainage, earthworks and wastewater contractor working out of a yard at Spring Creek, just north of Blenheim, and covering rural Marlborough, the Marlborough Sounds and down to Kaikoura. Owner Lloyd Clarke leads a team of ten and the business is a registered drainlayer. It suits larger residential and commercial jobs, vineyard work, and rural properties that are not on town sewer.
Services
- Residential and commercial drainlaying
- Stormwater storage solutions
- Winery storm and wastewater drainage
- Sewer pump stations and PE welding
- Subsoil drainage and existing drainage upgrades
Highlights
- Registered drainlayer with certified drain layers on the team
- Marlborough agent for Oasis Clearwater wastewater systems, including installation and ongoing servicing
- Owner Lloyd Clarke has over 20 years in construction and civil engineering work
- Fleet of excavators from 1.5 tonne to 14 tonne, plus trucks and cartage of aggregates
- Regularly works in partnership with local Marlborough engineers and other contractors
Location & Contact
Name: Lloyds Drainage
Address: 28 Murrays Road, RD3, Spring Creek, Blenheim 7273
Phone: 03 570 5877
Website: lloydsdrainage.co.nz
2Blenheim Drainage & Digger Hire Ltd
Blenheim Drainage & Digger Hire is a family owned drainage and digger business formed in 2004 by drainlayer Murray Warburton. The team handles new drainage systems, repairs to existing ones, septic tanks and site works, with five digger sizes so they can get into tight sections. It is a good fit for homeowners, builders and small subdivision work around Blenheim and the wider Marlborough region.
Services
- New drainage system installation
- Drain inspection, repair and maintenance
- Septic tank installation
- Service trenching and floor preparation site works
Highlights
- Family owned and operated, with Murray, Gloria and Sophia Warburton making up the team
- Murray Warburton is registered with the New Zealand Plumbers, Gasfitters & Drainlayers Board
- Over 20 years of drainlaying experience, trading since 2004
- Five sizes of digger, including zero tail swing machines for compact spaces
Location & Contact
Name: Blenheim Drainage & Digger Hire Ltd
Address: Blenheim
Phone: 03 578 4277
Website: blenheimdrainage.co.nz
3Clarke’s Drainage and Developments
Clarke’s Drainage and Developments is a Blenheim based drainage and civil contractor established in 2018 and run by Manahi and Kelly Clarke. Alongside domestic and commercial drainlaying it takes on excavation, retaining walls, landscaping and subdivision work, so a drainage job can be handled together with the ground work around it.
Services
- Drainlaying for new builds, maintenance and repairs
- Sewage pipe repair and replacement
- Stormwater retention storage and soak pits
- Stormwater culverts and open drains
- Septic tanks and secondary wastewater treatment with disposal fields
Highlights
- Established in 2018 and backed by 28 years of experience on New Zealand projects
- Site Safe member with health and safety built into every job
- Also covers retaining walls, landscaping, subdivisions, civil construction and vegetation mulching
Location & Contact
Name: Clarke’s Drainage and Developments
Address: Blenheim
Phone: 021 111 0753
Website: clarkesdrainage.co.nz
4Cannondale Contracting
Cannondale Contracting is a Marlborough drainage specialist based at Okaramio, in the hills between Blenheim and Havelock, and it services Blenheim along with Picton, Renwick and the Sounds. The focus is reactive work: clearing blocked drains, locating buried pipework and inspecting it with drain cameras before recommending a repair. It suits anyone dealing with a blockage, a recurring drainage fault or a stormwater system that has stopped coping.
Services
- Drain unblocking for household, commercial and rural drains
- Pipe repairs to cracked, damaged and collapsed pipework
- Sewer and stormwater drainage work
- Pipe locating before repairs, trenching or excavation
- CCTV camera drain inspections
Highlights
- No-dig pipe repair option that avoids excavating driveways, lawns and paved areas
- Qualified drainlayers using drain cleaning, camera and pipe locating equipment
- Handles septic related issues, soak holes and effluent fields as well as town drainage
- Services Blenheim, Picton, Renwick, Havelock, Seddon, Wairau Valley and the Marlborough Sounds
Location & Contact
Name: Cannondale Contracting
Address: 143 Mount Riley Road, Okaramio 7178
Phone: 03 972 2246
Website: cannondalecontracting.co.nz
5MT Plumbing & Drainage Ltd
MT Plumbing & Drainage is a Blenheim owner operated business run by Mark and Tania Palmer, with Mark holding both drainlayer and plumber certification. Drainage is a genuine half of the workload rather than a sideline, covering effluent fields, septic systems, soak pits and trenching for residential and commercial clients including vineyard owners and building companies. It suits smaller jobs and renovations where the plumbing and the drainage need doing together.
Services
- Drainage installation and repairs for new builds and renovations
- Septic tank installation and system servicing
- Effluent beds, disposal fields and field drains
- Soak pit installation and trench digging
- UV and filtration system and water pump installation
Highlights
- Mark Palmer became a certified drainlayer in 2012 and a certified plumber in 2013, listed on the Plumbers, Gasfitters and Drainlayers Board register under number 21270
- Owner operated by Mark and Tania Palmer, who formed the business in 2016
- Over 25 years of experience across commercial projects
- Services Blenheim, Picton, Havelock, Renwick, Seddon, Rarangi, Woodbourne and the Marlborough Sounds
Location & Contact
Name: MT Plumbing & Drainage Ltd
Address: Blenheim
Phone: 021 150 4577
Website: mtplumbingmarlborough.nz
Drainage Contractors in Blenheim at a Glance
| Business | Based in | Highlight |
|---|---|---|
| Lloyds Drainage | RD3 | Registered drainlayer with certified drain layers on the team |
| Blenheim Drainage & Digger Hire Ltd | Blenheim | Family owned and operated |
| Clarke's Drainage and Developments | Blenheim | Established in 2018 and backed by 28 years of experience on New Zeala... |
| Cannondale Contracting | Okaramio | No-dig pipe repair option that avoids excavating driveways |
| MT Plumbing & Drainage Ltd | Blenheim | Mark Palmer became a certified drainlayer in 2012 and a certified plu... |
How to Choose the Right Drainage Contractor in Blenheim
- Check the person doing the work is a registered or certified drainlayer, since drainlaying is restricted work and the registration is publicly searchable.
- Match the contractor to the job: an unblocking and CCTV specialist is the right call for a blockage, while a full drainlaying and earthworks outfit suits a new build or subdivision.
- Ask what equipment they own. Digger size matters for tight town sections, and drain cameras and pipe locating gear save guesswork and unnecessary digging.
- If your property is not on town sewer, check they install and service the specific wastewater system you need and can handle the Marlborough District Council consent conditions.
- Confirm they actually cover your location. Several Marlborough contractors are based outside Blenheim and service the Sounds, Awatere and Wairau Valley as well as the town.
Frequently Asked Questions About Blenheim Drainage Contractors
Does drainage work in Blenheim have to be done by a registered drainlayer?
Drainlaying is restricted work in New Zealand, so it must be carried out or supervised by someone registered and licensed for it. You can check a person’s registration and current licence on the public register run by the Plumbers, Gasfitters and Drainlayers Board before work starts.
What does a drainage contractor actually do?
The trade covers laying and connecting stormwater and wastewater pipes, installing gully traps, soak pits, culverts and septic or secondary treatment systems, repairing broken and collapsed pipework, and clearing blockages. Most Marlborough firms also run excavators, so trenching and site preparation usually come with the drainage work.
How much does drainage work cost in Blenheim?
None of the contractors above publish set prices, which is normal for the trade because cost depends on pipe runs, depth, ground conditions and access. Several offer a free quote, so the practical step is to describe the job and get a written price rather than working from an hourly guess.
Do I need a consent for new drainage or a septic system?
New connections, on-site wastewater systems and some stormwater work need approval from the Marlborough District Council, and rural systems often carry ongoing servicing conditions. A contractor who installs these regularly will tell you which approvals apply and what evidence the council wants on completion.
How do I know if my drain is blocked or broken?
Slow draining sinks and showers, gurgling, smells, water backing up or wet patches around gullies all point to a blockage. Repeated blockages usually mean something structural, such as tree roots, a cracked or collapsed section, or incorrect fall in the pipe, which is what a drain camera inspection is for.
What is a CCTV drain inspection and when is it worth it?
A camera is fed into the drain so the contractor can see the inside of the pipe and identify roots, cracks, collapsed sections or debris. It is worth doing before you buy an older property, when a drain blocks more than once, and before any dig, so the repair is aimed at the real fault.
Can drainage be repaired without digging up the driveway?
Sometimes. No-dig pipe repair relines or repairs damaged pipework from inside, which avoids breaking up driveways, paving and gardens. Whether it suits your drain depends on the type and extent of the damage, so it is normally assessed with a camera first.
Do Blenheim drainage contractors work outside town?
Yes. The firms listed here cover Picton, Renwick, Havelock, Spring Creek, Seddon, the Wairau and Awatere valleys and the Marlborough Sounds, and some also travel as far as Kaikoura. Rural work often involves septic and secondary treatment systems rather than a town sewer connection.
How We Chose the Best Drainage Contractors in Blenheim
Every business in this guide was found by searching for drainage contractors in Blenheim, then checked against its own website. Names, addresses and phone numbers are taken from the business’s own site rather than a directory feed, so what you see here is what they publish themselves. We also check that each one is actually based in or genuinely serving Blenheim, rather than a national operator running a local landing page. A business with no website of its own is not listed, because there is no primary source to verify it against.