
Home Renovation Help Centre
Home Renovation Questions, Answered
Renovation goes wrong in the planning, not the building. These fifty answers cover what each room realistically costs in Auckland, which work needs a building consent, how long the council stage actually takes, how variations are priced, and what a compliant bathroom waterproofing job looks like.
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50 questions across 6 topics
Cost & Budgeting10
What does a standard kitchen renovation cost in Auckland?
A standard kitchen renovation runs between $15,000 and $50,000, depending on size, whether the layout moves, appliance specification and finish quality. Keeping plumbing and electrical in their existing positions is the single biggest saving available. Moving the sink, the hob or a wall pushes the job into a different bracket regardless of how modest the cabinetry is.
What does a bathroom renovation cost in Auckland?
Bathroom renovations typically fall between $8,000 and $35,000. The lower end is a same-layout refresh — new fittings, tiling and waterproofing in the existing footprint. The upper end involves moving plumbing, converting a bath to a walk-in shower, structural changes or premium tiling. Waterproofing is not the place to economise at any point in that range.
What should I budget for a full house renovation?
Whole-house renovations span $50,000 to $250,000 in Auckland, which is a wide band because it covers everything from a cosmetic refresh of every room to gutting back to framing. The variables that move it most are structural change, re-wiring and re-plumbing, joinery replacement, and whether the roof and exterior are in scope at the same time.
How much does renovating one room cost?
A single-room renovation generally runs $5,000 to $25,000 depending on whether it is finishes only or includes new linings, insulation, wiring, joinery and flooring. Rooms are the easiest scope to control precisely, which is why they suit staged renovations — you can complete one properly rather than half-finishing three across the same budget.
What does converting a garage into a living space cost?
Garage conversions typically sit between $15,000 and $50,000. Converting to habitable space is more than lining the walls — it brings insulation, moisture management, ventilation, natural light and egress requirements into play, and usually needs consent because the use of the space is changing. Those compliance items are what separate a real conversion from a lined garage.
What do smaller carpentry jobs cost?
Standalone carpentry work runs roughly $2,000 to $15,000 — built-in storage, wardrobe fit-outs, internal doors and trim, deck-adjacent structures and repairs to rotten framing. Small jobs are priced on complexity and access rather than scale, so a fiddly repair in a tight space can cost more than a straightforward new build of similar size.
How much contingency should I hold on a renovation?
Hold a real contingency, kept separate from the build budget, and hold more on an older house than a newer one. Renovation contingencies exist for what opens up behind the linings — rot, borer, undersized framing, old wiring, missing insulation. If you spend your contingency on upgrading finishes before the walls are open, you have not budgeted a contingency.
What is the difference between a fixed price and an estimate?
A fixed price commits to a number for a defined scope, with changes handled as written variations. An estimate is a forecast that moves with actual time and materials. Neither is dishonest — but comparing a fixed price against an estimate as though they are the same document is how homeowners end up feeling misled. Ask which one you are holding.
How do I compare renovation quotes that look nothing alike?
Rebuild them onto one sheet, line by line. Check each includes the same demolition, the same allowances for tiles, tapware and appliances, consent fees, waste disposal, protection of the rest of the house, and the same warranty. Most large price gaps between builders turn out to be scope gaps or missing allowances rather than differences in labour rate.
What deposit and payment schedule is normal?
A deposit of 20–30% is typical to secure the booking and cover initial materials, with the balance drawn against defined progress stages. All of it is written into your quotation before work starts. Be cautious of any arrangement where payments run well ahead of the work actually completed on site — the schedule should follow the build, not lead it.
Building Consent & Compliance9
Which renovation work needs a building consent?
Broadly: structural change, new or relocated plumbing and drainage, changes to the building envelope, and anything that changes how a space is used. Cosmetic work — painting, replacing like-for-like fittings, new flooring, cabinetry in the same footprint — generally does not. The exemptions in Schedule 1 of the Building Act are narrower than most homeowners assume, so confirm before demolition.
How long does a building consent take in Auckland?
The statutory clock is 20 working days once a complete application is lodged, but that clock pauses every time the council requests further information. In practice, plan for a longer elapsed period and build it into your programme. The most effective way to keep it short is lodging a complete, well-documented application rather than chasing it afterwards.
Do I have to deal with the council myself?
No — we manage the consent process with Auckland Council on your behalf as part of full project management: drawings, the application, inspections during the build and the code compliance certificate at the end. You stay the consent holder and sign what needs signing, but you are not the one chasing an RFI response between site visits.
Why does the code compliance certificate matter so much?
Because it is the council’s formal confirmation the consented work meets the Building Code, and it is the first document a buyer’s lawyer looks for. Consented work without a CCC becomes a discount, a delayed settlement or a condition on a future sale. Never let a consented job be "finished" without closing out the consent properly.
What makes bathroom waterproofing compliant?
Internal wet areas are governed by Clause E3 of the Building Code, with membrane systems applied to AS/NZS 4858 and the manufacturer’s specification — correct substrate, correct falls, junctions and penetrations detailed, and the membrane taken to the right heights. Documentation matters as much as application: keep the producer statement and product records with your house file.
What if the previous owner did unconsented work?
It has to be dealt with, not built over. Once discovered, unconsented work typically needs either a certificate of acceptance or removal, and a council inspector who sees it during your job will not ignore it. Finding it at planning stage is inconvenient; finding it mid-build after you have already tiled over it is expensive.
When does the work legally need a Licensed Building Practitioner?
Restricted building work — the parts of a home that affect primary structure and weathertightness — must be carried out or supervised by an LBP, and records of who did what form part of the consent. This applies on many renovations even where you might think of the job as cosmetic, so confirm it at quoting rather than at inspection.
I am renovating a rental — what compliance should I be thinking about?
Renovation is the cheapest moment to bring a rental up to standard, because the walls, ceilings and floors are already open. Heating, insulation, ventilation, moisture ingress and draught stopping all have specific requirements for tenanted properties. Retrofitting extraction or underfloor insulation after the finishes are back on costs several times what it would have during the build.
Are there extra rules for renovating a villa or bungalow?
Often, yes. Special Character and heritage overlays in the Auckland Unitary Plan can control what happens to street-facing elevations, roof form, joinery and cladding, which is resource consent territory separate from building consent. Interior work is usually far less constrained. Check your address on Auckland Council GeoMaps before committing to any change visible from the street.
Kitchens7
How long will I be without a kitchen?
Plan for the full period between removing the old kitchen and the benchtop template being installed and returned — the benchtop is the item that most often sets the gap, because it is measured after cabinetry lands rather than ordered in advance. Set up a temporary kitchen with the fridge, kettle and microwave somewhere else before demolition day, not during it.
How much does moving the sink or hob add to a kitchen job?
It changes the job category. Keeping services where they are means the work is joinery, benchtop, splashback and finishes. Moving them brings in plumbing, drainage falls, electrical, possible floor or wall opening, and potentially consent. If budget is tight, a new kitchen in the existing layout delivers far more visible improvement per dollar.
How do I choose a benchtop material?
Decide by how you actually use the kitchen. Engineered stone and stainless steel handle heat and heavy use; timber needs oiling and rewards care; laminate is the value option and has improved enormously in appearance. Also weigh joint locations and edge profiles — on a long run, where the joins fall is more visible day to day than the material itself.
When should I buy the appliances?
Confirm the exact models before cabinetry is manufactured, even if you buy them later. Cabinet openings, ventilation clearances, power and gas points are all built around specific dimensions. Substituting an appliance after the joinery is made is one of the more expensive late changes in a renovation, and it is entirely avoidable with an early decision.
Does the rangehood have to vent outside?
Ducted to the exterior is always the better outcome — recirculating filters remove odour but leave the moisture in the room, and cooking moisture is a significant contributor to condensation problems in Auckland homes. If a duct run is possible during the renovation, take it. Retrofitting one later means opening ceilings or cabinetry that has just been finished.
Can I keep my existing cabinets and just replace the doors?
Yes, if the carcasses are square, dry and structurally sound, and the layout still works for you. New doors, handles, benchtop and splashback transform the look at a fraction of full replacement. It stops being worthwhile when the carcasses are swollen, the hinges have torn out, or you actually want a different layout.
What order do the trades run in on a kitchen?
Demolition, then any structural work, then rough-in plumbing and electrical, then linings and stopping, then flooring or floor prep, cabinetry install, benchtop template and fit, splashback, final plumbing and electrical fit-off, then painting touch-up. Getting this sequence wrong — flooring too early, splashback before template — is what creates rework and delay.
Bathrooms7
How many weeks should I allow for a bathroom renovation?
A standard bathroom takes 2–4 weeks once work begins. The timeline is set by scope, consent requirements and product lead times rather than by the physical size of the room — waterproofing and tile adhesive both need proper cure time, and rushing either is how a bathroom fails in year three. You receive a project schedule before work starts.
We only have one bathroom — how do we manage?
Plan it before demolition, not on day two. Options are staying with family, a short-term rental for the wettest part of the programme, or arranging a temporary shower elsewhere. We sequence single-bathroom jobs to minimise the number of days the room is completely out of action, but there is always a period where it genuinely cannot be used.
Is converting a bath to a walk-in shower a big job?
Bigger than it looks. The floor waste usually moves, the floor may need to be recessed or falls formed to it, and the waterproofing membrane has to be redone across the whole wet area rather than patched. It is a very popular change and well worth doing properly — but it is a full wet-area rebuild, not a swap.
Tiles or wall panels in a wet area?
Both work when installed to specification. Tiles offer more design range and repairability but rely on grout and sealed junctions being maintained. Panels install faster with fewer joints, which suits rentals and tight programmes. Neither is waterproof on its own — the membrane behind them is what keeps water out of the framing, and it matters more than the surface.
How important is the extraction fan?
It is the difference between a bathroom that stays sound and one that grows mould on the ceiling every winter. The fan needs to be sized for the room, ducted to the outside rather than into the roof space, and run long enough after showering to clear the moisture. Venting into the ceiling cavity simply moves the damp problem somewhere less visible.
Is underfloor heating worth including in a bathroom renovation?
If it is going in, it has to go in now — retrofitting under a finished tiled floor means removing that floor. Its practical benefit in Auckland is drying the room faster after showers rather than heating the house, which helps with the moisture problems our climate creates. Whether that justifies the cost is a comfort decision, not a compliance one.
How do you make a small bathroom work better without extending it?
Wall-hung vanities and toilets free visible floor, a single large-format tile reduces grout lines, a frameless or single-pane shower screen stops the room being visually chopped in half, and moving the door swing can unlock more usable area than any fitting change. Layout and light usually do more for a small bathroom than expensive finishes.
Timeline & Living On Site9
Can we live in the house during the renovation?
In most cases yes, especially for single-room work. We set up dust barriers, protect circulation routes, keep the site tidy at the end of each day and work efficiently to keep disruption short. Full-house renovations with services off for extended periods are the exception — we will tell you honestly at quoting stage which category your job falls into.
How is dust controlled in an occupied house?
Sealed barriers at the boundary of the work zone, protection on floors along access routes, extraction at source where sanding or cutting is happening, and daily clean-down rather than one clean at the end. Nothing eliminates renovation dust entirely, but the difference between a controlled site and an uncontrolled one is very obvious by the second week.
What happens when something unexpected is found behind a wall?
We stop, document the issue — hidden rot, failed substrate, undersized framing — and provide a written variation quote before proceeding. No additional work is carried out without your written approval. Wherever possible those risks are identified at the initial site inspection so they appear in the quote rather than as a surprise mid-build.
Who coordinates the different trades?
We do — that is what project management on a renovation buys you. Plumbers, electricians, tilers, joiners and painters each need the site in a particular condition on a particular day, and the cost of getting that sequence wrong is measured in wasted trips and idle weeks. You get one point of contact rather than six calendars to reconcile.
What actually causes renovation delays?
In order: late decisions by the homeowner on selections, consent processing and RFIs, product lead times on joinery and tapware, and discoveries once the linings are off. Weather barely features on interior work. Making selections early and completely is the single most effective thing a homeowner can do to protect their own programme.
How is the house kept secure while work is under way?
Access is controlled and the building is closed up at the end of each working day, with any temporary openings made secure and weathertight before the crew leaves. Talk to us early if you have an alarm, pets or specific access constraints, and let your insurer know a renovation is happening — some policies have conditions during building work.
What hours will the crew be on site, and what about neighbours?
Normal working hours, and we let you know the programme in advance so you can tell neighbours before the noisy stages rather than after. Noisy demolition and concrete cutting are worth flagging directly to anyone attached or immediately adjacent. Most neighbour friction on renovations comes from surprise, not from noise itself.
Can I stage a big renovation over several years?
Yes, and it is often the sensible route — but design the whole thing first, then build it in stages. Staging without a master plan is how people end up demolishing work they paid for two years earlier. Get services, structure and layout resolved once, then complete rooms as budget allows in a sequence that avoids rework.
Is there a best time of year to renovate?
For interior work, the season barely matters. For anything opening the building envelope — extensions, re-cladding, new windows, roof work tied to the renovation — the drier months are easier and the programme is more predictable. Booking lead times, not weather, are usually the real constraint on when your job can start.
Flooring, Additions & Older Homes8
What is involved in replacing carpet through a house?
Old carpet and underlay are lifted and removed, the subfloor is inspected and any builder-grade repairs made, then new underlay and carpet are laid and trimmed. The inspection step matters — a squeaking or uneven floor is far cheaper to fix while it is bare. Pricing depends on your carpet specification, and every job starts with a free itemised quote.
Laminate or vinyl plank — which should I choose?
Vinyl plank handles moisture far better, which makes it the safer choice for kitchens, laundries, entries and anywhere with a damp subfloor. Laminate generally reads closer to real timber underfoot and in appearance. In Auckland’s humidity the moisture question usually decides it — and either way, subfloor preparation matters more than the product you pick.
Why does subfloor preparation get so much attention?
Because every flooring failure traces back to it. Moisture in the substrate lifts glue and swells boards, unevenness telegraphs through as ridges and hollow spots, and movement creates gaps at the joints. Preparation is the invisible part of the quote homeowners are most tempted to trim, and the part that determines whether the floor lasts.
Should the same flooring run through the whole house?
Visually it makes a small home feel larger and removes threshold strips that collect dirt. Practically, wet areas usually still want their own material. A common compromise is one continuous floor through living, hall and bedrooms, with tile or vinyl in bathrooms and laundry — consistent enough to read as one house, sensible where water lands.
Can an old villa be insulated properly during renovation?
Yes, and the moment the linings come off is the only affordable opportunity. Walls, ceiling and underfloor can all be addressed, but character homes need a moisture-management approach as well as an insulation one — filling a cavity that was designed to breathe, without managing the moisture, creates a new problem behind the new plaster.
What happens if borer or rot is found in the framing?
It is assessed rather than assumed. Surface borer in old timber is extremely common in Auckland homes and often does not affect structural capacity; active infestation or rot that has softened a member does, and that member gets replaced or reinforced. Either way you get photographs, an explanation and a written variation before any additional work proceeds.
Can you build a custom storage shed or workshop?
Yes — timber storage sheds and garden buildings are built on site to your dimensions rather than assembled from a kit, which matters on sloping or awkward Auckland sections. Size, height and proximity to boundaries determine whether consent is needed, so those get confirmed before design rather than after the concrete is poured.
What should I know before building a tiny home?
The compliance path depends on whether it is a vehicle, a relocatable building or a permanent structure — that classification drives consent, services connections, foundations and where it can legally sit on your site. Get that answer from Auckland Council before designing, because it changes almost every decision that follows, including the budget.
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