A kitchen renovation is one of the biggest single investments most homeowners make in a house, and it's also one of the easiest to blow out if it isn't planned properly. There's no honest flat rate we can quote you before we've seen the room — but there is a clear set of factors that determine where your budget goes. Understanding them means you walk into a quote knowing exactly what you're paying for.
1. Layout changes vs keeping plumbing and gas where they are
This is the single biggest lever in any kitchen budget. If your sink, dishwasher and gas hob stay roughly where they already are, the plumbing and gas fitting stays simple and inexpensive. Move the sink to an island or relocate the hob to a new wall, and you're into new pipework, new gas runs, possibly new drainage, and sometimes consent — all of which add real cost before a single cabinet goes in. If your budget is tight, keeping fixtures in their existing positions is the most effective saving available, full stop.
2. Cabinetry — usually the biggest single line item
Cabinetry is where most of a kitchen budget lives. Custom-built cabinetry, sized precisely to your space with soft-close drawers, internal organisers and made-to-measure panels, costs meaningfully more than flat-pack or semi-custom options — but it also fits properly, uses every centimetre of an awkward space, and lasts. Flat-pack can be a sensible choice for a straightforward, standard-sized layout; it's a false economy in a tricky or non-standard room where off-the-shelf sizing forces compromises. This is usually the first decision we help clients weigh up.
3. Benchtop material tier
Benchtops move the number more than people expect, and the jump between tiers is meaningful. Laminate is the most affordable option and has come a long way in look and durability. Engineered stone sits above it — harder-wearing, more heat and stain resistant, and available in a wider range of finishes. Natural stone sits at the top: no two slabs are identical, and it brings a genuine premium look, but it needs more careful fabrication, sealing and handling. None of these is the "wrong" choice — it's about matching the tier to your budget and how the kitchen gets used day to day.
4. Appliances
Appliance packages can vary hugely, and it's rarely just about the appliances themselves — it's how they integrate. Fully integrated fridges and dishwashers behind custom cabinetry cost more in cabinetry and installation than a freestanding equivalent. Deciding early whether you want a fully integrated look or a more visible, freestanding approach helps us build an accurate quote rather than a rough guess.
5. Splashback and tiling
A simple, large-format splashback in a single material is quick to install and keeps costs down. Feature tiling, intricate patterns, or a full-height statement wall behind the hob take considerably longer to set out and lay, and that labour time shows up in the quote. As with bathrooms, you can choose to splurge on a feature that gets seen every day, or keep things simple and put the saving elsewhere.
6. Electrical and lighting
Modern kitchens carry more electrical load than kitchens built even fifteen years ago — under-cabinet lighting, pendant lights over an island, dedicated circuits for ovens and induction hobs, extra power points for appliances that didn't exist last decade. The more new circuits and fittings you add, and the more you move existing wiring to suit a new layout, the more electrician's time goes into the job. A well-thought-out lighting plan is worth the investment, but it's worth pricing early rather than adding it as an afterthought.
7. Flooring flow-through
If your new kitchen flooring needs to match or flow into an adjoining living or dining space, that's more material and more careful levelling and transition work than a kitchen that stops at its own walls. Open-plan homes look fantastic with continuous flooring, but it's worth knowing upfront that flow-through flooring adds to the scope — and it's an easy thing to overlook when you're focused on cabinetry and benchtops.
8. Trades coordination
A kitchen renovation pulls in plumbers, electricians, gas fitters, cabinet makers and benchtop fabricators. Sequencing them properly — so the electrician isn't waiting on the cabinet maker, and the benchtop template happens at exactly the right moment — is what keeps a project on schedule. This is why we run kitchens the same way we run bathrooms: one team managing every trade, so nobody's cost blows out because of poor coordination.
So how do you get a real number?
The only honest way is a site visit and an itemised quote. We come to you, measure up, talk through your layout and finishes, and come back with a clear, line-by-line quote so you can see exactly where the budget goes — and where you have room to move. If you'd rather start with a rough feel for your project first, our renovation cost estimator is a good starting point, and our companion guide on what drives bathroom renovation cost in Auckland covers the same approach for bathrooms. Bathrooms are our specialism, but the same team handles kitchens and full-home renovations end to end — you can see examples of our work in the gallery.
Frequently asked questions
What's the single biggest way to keep kitchen renovation costs down?
Keep your sink, dishwasher and gas hob in roughly their existing positions. Avoiding new plumbing and gas runs is the most effective saving available in almost any kitchen renovation.
Is flat-pack cabinetry a false economy?
Not always — it can work well in a straightforward, standard-sized layout. It becomes a false economy in an awkward or non-standard space, where off-the-shelf sizing forces compromises that custom cabinetry would avoid.
Do I need a building consent for a kitchen renovation?
It depends on the scope — moving plumbing, gas, or structural walls is more likely to require one than a like-for-like refresh. We'll confirm this for your specific project as part of your quote.
How do I compare benchtop material tiers?
Think of it as laminate, engineered stone and natural stone in ascending order of durability, uniqueness and fabrication complexity. We'll talk you through samples and trade-offs so the tier matches your budget and how you use the kitchen.
Want a real, itemised number for your kitchen?
Tell us about your project and we'll come back with honest advice and a clear quote — usually within one business day.
Get a free quote →