Why choosing the right concreter matters A concrete job can look simple from the outside, but the quality of the finish depends on correct site preparation, reinforcing, levels, drainage, weather conditions and curing. A poor job can lead to cracking, ponding, uneven surfaces, spalling and expensive repairs later.
For homeowners, the goal is not just to find someone who can pour concrete. It is to find a concreter who turns up when they say they will, understands local conditions, communicates clearly, and delivers a durable result that suits your property and budget.
Start with word of mouth and local reputation In New Zealand, referrals are often one of the best ways to find a reliable tradesperson. Ask people whose judgement you trust:
- neighbours who have recently had a driveway, path, patio or slab done - friends and family who have completed similar work - your builder, landscaper, draughtsperson or property manager - local Facebook community groups, keeping in mind that personal recommendations still need checking
When someone recommends a concreter, ask more than “Were they good?” Useful follow-up questions include:
- Did they turn up when they said they would? - Was the quote clear and detailed? - Did they keep the site tidy and communicate about delays? - Did the finished surface meet expectations after a few months or over a wet winter? - Would you hire them again?
A strong referral from a recent job in your area is especially valuable because it gives you a sense of how they work in local weather, soil conditions and council expectations.
Use reviews, but read them properly Online reviews can help, but they are only one part of the picture. Look at the full pattern rather than one or two glowing comments.
What to check:
- whether the business has a consistent history of reviews over time - whether reviewers mention specifics such as communication, punctuality, quality of finish and cleanup - how the business responds to negative feedback - whether there are repeated complaints about the same issue, such as missed deadlines or poor follow-up
Be cautious if reviews are extremely brief, all posted in a short period, or vague about the actual work completed. A good concreter should be able to point you to recent examples of similar jobs, such as exposed aggregate driveways, shed slabs, paths, steps, retaining wall footings or patios.
Check credentials and trade knowledge Unlike some trades, concreting itself is not a licensed profession in the same way as electrical or plumbing work. That means homeowners need to do a bit more checking themselves.
A reputable concreter should be able to explain how they will handle:
- site prep and excavation - basecourse and compaction - formwork and levels - steel reinforcing or mesh, where needed - joints and crack control - drainage and falls away from the house - curing and sealing
If the work is part of a wider project, ask whether any other regulated trades are involved. For example:
- plumbing, gasfitting and drainlaying are restricted work and must be done by appropriately licensed tradespeople under the Plumbers, Gasfitters and Drainlayers Board (PGDB) - electrical work must be done by a licensed electrician or authorised person under the Electrical Workers Registration Board (EWRB) - some building work may require building consent from your local council, depending on the scope and location
For concreting, also ask whether they hold any relevant industry training or memberships, such as experience in civil works, decorative finishes or site works. While membership of an industry association is not a guarantee, it can be a useful sign that they are serious about standards.
Ask for written quotes from at least three concreters Do not rely on a rough phone estimate. Ask for written quotes from at least three businesses so you can compare scope, not just price.
A good quote should clearly state:
- the exact area or dimensions to be concreted - concrete thickness and finish type - excavation, cartage, basecourse and disposal allowances - reinforcing, mesh or bar details - edge thickening, joints and sealant if included - whether council fees, consent costs or engineer sign-off are included - the programme or expected start date - payment schedule and deposit requirements - GST status - what happens if hidden issues are found after excavation
If one quote is far lower than the others, find out why. It may exclude important items or use lighter specifications. The cheapest option can become the most expensive if the job needs to be repaired or redone.
Know what good workmanship looks like A quality concreter does more than pour and leave. Good workmanship usually includes:
- a proper site visit before quoting - accurate measurements and discussion of access, slopes and drainage - realistic advice about weather, drying times and curing - clear communication about what the finish will look like - tidy site prep and care around existing landscaping - correct levels so water runs away from buildings and does not pond - consistent finish texture and clean edges - suitable control joints to help manage cracking
For many NZ homes, especially on sloping sections or in wetter regions, drainage is just as important as the finish. Ask how they will deal with runoff, soakage, downpipe discharge and any low points on the site.
Red flags to watch for A tradesperson does not need to be flashy to be good, but certain warning signs suggest you should keep looking.
Be cautious if they:
- pressure you to accept a quote immediately - want a large cash deposit before giving a detailed scope - refuse to provide references or recent examples - cannot explain how they will handle levels, drainage or crack control - are vague about start dates, materials or exclusions - do not carry out an on-site inspection before pricing a complex job - are dismissive when you ask questions
It is also worth being wary of anyone who promises that concrete will never crack. Concrete can crack even when installed well. The question is whether the concreter plans for that risk properly and reduces it through correct design and installation.
Check insurance and business basics Before you commit, ask how the business is set up and what protection they have in place.
Useful checks include:
| What to check | Why it matters | What to ask | |---|---|---| | Public liability insurance | Helps protect you if damage occurs to your property or a third party | “Do you have current public liability insurance?” | | Contract works insurance | May cover the project while it is underway | “Is the job covered while work is in progress?” | | GST registration | Helps you compare like-for-like quotes | “Are your prices GST-inclusive?” | | Company details | Gives you a paper trail if there is a dispute | “What is your legal business name and NZBN?” | | Payment terms | Reduces the risk of misunderstandings | “What deposit do you require, and when are progress payments due?” |
If the concreter uses subcontractors, ask who is responsible for quality, safety and any defects after completion.
Understand NZ conditions and timing In New Zealand, season and weather can strongly affect concreting. Summer is often busy, and a good concreter may be booked well in advance. In winter, wet ground, cool temperatures and rain can delay work or affect curing.
When comparing quotes, ask:
- when they can realistically start - whether the job should wait for better weather - how they manage rain delays or extreme heat - how long the surface needs to cure before vehicles or heavy loads use it
Local ground conditions also matter. Clay soils, poor drainage and sloping sites can all change what is needed under the slab or driveway. A good concreter will factor this into the design rather than treating every job the same.
Get everything in writing A proper written agreement protects both you and the tradesperson. Even for smaller jobs, the paperwork should cover the essentials.
Make sure you have:
- the full scope of work - agreed price and GST treatment - start and completion dates, or a reasonable estimate - specifications for concrete type, thickness and finish - details of who obtains any required consent or engineering information - variation process if unexpected work is required - warranty or defects period, if offered
If any changes are made once the job starts, confirm them in writing. That makes it much easier to avoid disputes later.
Use local directories wisely Trade directories can help you build a shortlist, especially if you are new to an area or do not have local contacts. A good directory should help you compare several businesses, see their service areas, and contact them easily.
When using directories:
- shortlist several concreters rather than contacting only one - cross-check the business name, reviews and website details - look for recent activity, not just a profile that has been sitting unchanged for years - use the directory as a starting point, not the only source of judgement
Directories are most useful when combined with referrals, review checks and direct conversations. The goal is to build a clear picture of reliability, workmanship and professionalism.
Ask the right questions before you hire Once you have a shortlist, a short phone call or site visit can tell you a lot. Ask practical questions such as:
- Have you done similar jobs in this area? - What base preparation do you recommend for my site? - How will you handle drainage and falls? - What finish is most suitable for a driveway, path or patio? - How soon after pouring can the area be used? - What could increase the cost once work begins?
A good concreter will answer clearly and without making you feel silly for asking. They should also be willing to explain trade-offs, such as how a smoother finish may differ from a more slip-resistant one, or why a thicker slab may be worthwhile for vehicle use.
The bottom line Finding a good concreter in New Zealand is about checking several things together: reputation, reviews, written quotes, practical knowledge, insurance and clear communication. The best tradesperson is usually not the cheapest or the loudest marketer, but the one who explains the job properly, turns up when promised and delivers a finish that lasts.
If you take the time to compare a few options and ask the right questions, you are much more likely to hire a concreter who does the job properly first time.