Roofing Questions, Answered

Budget by roof area, not house price. On a small home up to 100m² long-run Colorsteel typically runs $12,000–$20,000 and concrete tile $18,000–$30,000. A 100–200m² home is usually $20,000–$38,000 in Colorsteel or $30,000–$55,000 in tile. Above 200m², expect $38,000–$45,000+ and $55,000–$65,000+ respectively. Your exact figure depends on pitch, access and what the old roof hides.

Most residential roof repairs land between $150 and $1,800. A single cracked tile, a re-bedded ridge or one lifted flashing sits at the bottom of that band; multiple leak points, rusted valley replacement or work needing a harness system and edge protection sits at the top. We quote the repair in writing after inspection so you can compare it against replacement cost before committing.

No. Roof inspections and quotes are free and carry no obligation across every Auckland suburb we serve. We attend, assess the roof, photograph anything that matters and issue a written itemised quote. Phone estimates are guesses — a roof cannot be priced honestly from the ground or from a photo, so we always look at the actual roof first.

A per-m² rate is a planning tool, not a quote. It covers sheet or tile plus labour, but it excludes the variables that move the price most: scaffolding, roof pitch, number of penetrations, valley and flashing lengths, and disposal of the old roof. Two quotes with the same per-m² rate can differ by thousands. Always compare total fixed prices with a written scope, not rates.

A complete quote names the product and profile, the underlay, all flashings and ridge capping, fixings, removal and disposal of the old roof, scaffolding or fall protection, gutter and downpipe work if affected, clean-up, and both the workmanship and manufacturer warranty terms. If any of those are missing they become variations later. Ask for anything excluded to be listed explicitly.

Roofing jobs typically take a deposit of 20–30% to secure the booking and cover material ordering — long-run steel is roll-formed to your roof, so it is bought before work starts. The balance is staged against progress and stated in your quotation before anything begins. You will never be asked for money on terms you did not see in writing first.

In order of impact: roof area, pitch (anything above about 30° needs staging), scaffolding for two storeys, the number of valleys, dormers and penetrations, the condition of purlins or battens once the old roof is off, and disposal volume. Concrete tile removal also adds weight and cartage. Access — a tight site with no truck room — is the factor homeowners underestimate most.

Compare scope before price. A cheap quote usually differs in one of four places: thinner or unbranded sheet, reused flashings, no underlay upgrade, or no scaffolding allowance. Any of those saves money on day one and costs it back within a decade. Line the quotes up item by item — if a cheaper quote genuinely matches scope, warranty and product, it is a fair saving.

Often yes. A common sequence is to make the roof watertight now — repairs, flashings, valleys — and schedule full replacement for the following year, or to re-roof the main house first and the garage or carport later. What cannot be staged safely is a roof already leaking into the ceiling cavity. We will tell you plainly which category yours is in.

Treat it as a budget bracket, not a price. Our own cost calculator uses real job bands and adjusts for size, quality tier and urgency, which gets most homeowners inside the right range for planning and finance conversations. It cannot see your purlins, your access or the rust under a ridge cap — only a site visit sets the number you actually pay.

The working rule across the trade is that when repair cost passes roughly half of replacement cost, or when you are calling someone back for a third separate leak, you are funding a roof you will still have to replace. Age matters too — repairing a 30-year-old roof buys seasons, not decades. A free inspection puts real numbers on both options before you decide.

Look for widespread rather than isolated damage: rust breaking through multiple sheets, tiles cracking in several planes, ridge mortar failing along the whole line, sagging between purlins, daylight visible in the roof space, or staining across more than one ceiling. Isolated damage is a repair. Damage repeating across the roof means the material has reached the end of its service life.

Service life varies by material and exposure. Long-run steel and concrete tile both perform for decades when maintained, with manufacturer warranties commonly in the 15–50 year range depending on the product and coating. Coastal salt exposure, unwashed sheltered areas and overhanging trees all shorten it. A roof that has never been cleaned ages faster than one on the same street that has.

Yes, and it is common where one elevation has weathered harder or a lean-to has failed early. The practical limits are colour and profile matching — a discontinued profile may not exist any more, and new coating next to twenty-year-old coating will read as a patch. We will show you where the join lands so you can judge the look before committing.

It depends where the rust is. Surface rust on otherwise sound sheet can be treated and coated. Rust at fixing points, in laps or along a valley means water is already sitting in the joint and the sheet is compromised — that is replacement territory for those sheets at least. Rust perforating through from underneath is always a replacement signal, not a paint problem.

Yes, but usually not an emergency. Under a cracked tile is only building paper, and in Auckland rain that paper fails quickly once it stays wet. Individual tiles can be swapped cheaply. What turns a small job into a large one is leaving it until the underlay, the batten and then the ceiling below have all been soaked through a winter.

A visible dip usually means the structure under the cladding, not the cladding itself: undersized or rotted purlins, a failed strut, water-damaged rafters, or a previous re-roof that put concrete tile weight onto a frame designed for steel. This is one of the few roofing symptoms that should be looked at promptly, because the fix scales with how long it is left.

Always, on a job of that size. Ask both parties for photographs of the specific defects driving the recommendation, and for the repair option priced separately even if they do not recommend it. Two honest assessments of the same roof will agree on the condition and may reasonably differ on timing. We are happy to inspect and give you that second view free.

We work with all the common New Zealand roofing materials: concrete tiles, terracotta and clay tiles, Colorsteel and long-run corrugated iron, fibrous cement, butynol membrane, and decramastic tiles. That range matters on older Auckland homes, where a roof is often a mix — a tiled main roof with a membrane deck and a steel lean-to all needing different details at each junction.

Long-run steel is lighter, faster to install, sheds heavy rain well and costs less to replace. Concrete tile is quieter in rain, holds its look on character homes, and is heavier — which is exactly why you cannot swap steel for tile without checking the structure. On exposed or coastal sites, coating grade matters more than the choice between the two.

Yes, measurably. Darker roofs absorb more solar heat and push more of it into the roof space, which matters in Auckland summers and in homes with limited ceiling insulation. Lighter and mid-tone colours run cooler. Colour also affects visible fading over time — deep reds and dark blues show weathering sooner than greys and greens on the same coating system.

It is one of the cheapest upgrades available while the roof is open. Underlay is a secondary barrier — it manages condensation and catches wind-driven rain that gets past a lap. Replacing it costs little when the cladding is already off, and is disruptive and expensive to do later. Any re-roof quote that reuses existing underlay is worth questioning.

Yes, and it is the natural moment to do it. With the cladding removed there is clear access to the ceiling cavity for topping up or replacing insulation and for improving ventilation paths. Ventilation matters as much as R-value in Auckland: a well-insulated cavity with no airflow traps moisture and rots timber that would otherwise be sound.

Flat and low-pitch areas are membrane work — butynol and similar systems — not sheet roofing. Below the minimum pitch for a profile, water no longer runs off reliably and any sheet lap becomes a leak. Membrane over a properly falled substrate is the correct solution. Getting the falls right at the substrate stage is what determines whether it ponds.

Because most roofs do not leak through the middle of a sheet — they leak at a junction. Flashings handle every junction: ridge, barge, apron, valley, penetration, wall abutment. Reusing tired flashings on a new roof is the most common way a new roof still leaks. Every flashing on a re-roof should be new and named in your quote.

It is the cheapest time. The flashing kit integrates with the new cladding as it is laid, rather than cutting into a finished roof later and relying on a retrofit detail. Confirm the location against ceiling framing and any consent implications first, then let the roofer install it as part of the roof, not as a separate visit afterwards.

Replacing roof cladding with a comparable product in the same position is generally exempt under Schedule 1 of the Building Act 2004 — profiled metal replaced with profiled metal being the standard example. Consent is needed if you change to a heavier material such as concrete tile, alter the structure, or the existing roof failed for durability or external moisture. Confirm your case with Auckland Council before starting.

Work affecting the weathertightness of the building envelope is restricted building work, so it must be carried out or supervised by a Licensed Building Practitioner even where the job itself is consent-exempt. That is a protection for you, not paperwork: it means someone with a licence on the line is accountable for the detailing that keeps water out.

Going from heavy to light changes how the structure is loaded and how it is braced, so it is not a like-for-like swap and generally falls outside the Schedule 1 exemption. Some frames also relied on tile weight for bracing. Treat it as a consented job and budget for engineering input; the council will want to see the structure has been assessed, not assumed.

It can. Special Character and heritage overlays in the Auckland Unitary Plan sit on top of building consent rules and can control visible material, profile and colour on street-facing elevations. That is resource consent territory, separate from building consent. Check your address on Auckland Council GeoMaps before ordering product — a profile change can be refused after purchase.

Photograph everything before any work, including interior damage, and record the date of the weather event. Make the roof safe rather than fully repaired, keep receipts for the make-safe, and get a written assessment describing the damage and its cause — insurers distinguish storm damage from gradual deterioration. We can provide a report and quote in the format assessors expect.

A code compliance certificate exists only where a building consent was issued, so consent-exempt re-roofing does not produce one. What you should receive instead is a written workmanship warranty, the manufacturer product warranty documentation, and a record of the products installed. Keep all three — a future buyer or their lawyer will ask for them.

You need their permission — there is no automatic right of access. Ask early and in writing, agree dates and ground protection, and expect to make good any lawn or garden damage. Most neighbours agree when approached before the truck arrives rather than on the morning. If access is refused, the alternative is usually a more expensive staged or cantilevered scaffold design.

Fibrous cement roofing on older Auckland homes can contain asbestos, and removal is regulated work with its own testing, containment and disposal requirements — it is never a general roofing task. If testing confirms it, licensed removal happens as a separate stage before the new roof starts. Budget and programme for it up front rather than discovering it on strip-out day.

A straightforward single-storey re-roof is commonly a few days on site once materials and scaffolding are in place; complex, steep or two-storey roofs run longer. The programme is driven less by roof area than by weather windows, scaffold erection and how much purlin or batten repair appears at strip-out. Your quote should carry an indicative programme, not just a price.

Roofers never open more roof than they can close. Work is sequenced in sections so the house is watertight at the end of every day, and if a front comes through, open areas are covered and the crew stands down. That is why Auckland roofing programmes carry weather contingency — a schedule with no allowance for rain is not a realistic schedule here.

Yes, in almost all cases. It is noisy — strip-out and fixing are the loud stages — and you will want anything fragile off high shelves, but the house stays habitable and secure throughout. Plan around the noise if you work from home or have a baby napping; we can usually tell you which two days will be the loudest.

Clear vehicle and pedestrian access to all elevations, move cars off the drive, take down anything hanging on walls that share framing with the roof, cover or move stored items in the roof space, and let neighbours know the dates. If you have pets, plan where they will be — gates get opened repeatedly and skips arrive without much notice.

Old roofing goes straight to a bin rather than onto the lawn, gutters are cleared of debris created by the work, and the ground is magnet-swept for fixings before the crew leaves. Ask specifically about the magnet sweep when comparing quotes: it is the difference between a tidy handover and finding screws with a bare foot in February.

If the spouting is near end of life, yes — the scaffolding, the access and the crew are already there, so the marginal cost is far lower than a separate visit. It also lets the roofer set the roof edge and the gutter line together rather than working around an existing gutter. If your spouting is sound, it can stay.

They are removed and refitted, usually by the solar installer rather than the roofer, and that needs coordinating into the programme early. Never re-roof around panels: the penetrations under them are exactly where a new roof needs new flashings. Ask your solar company for a remove-and-refit price at quoting stage so it is in the budget from day one.

It is slower, not impossible. Winter means shorter days, more stand-downs and a longer elapsed programme, but roofers work year-round here and lead times are often better. What genuinely should not wait for spring is an actively leaking roof — the damage compounds every week, and interior repairs cost more than the roofing ever did.

Contain first, diagnose second. Move belongings, put a container under the drip, and if a ceiling is bulging with trapped water, pierce it at the low point in a controlled way rather than letting it collapse. Then call us on 022 315 8987 — we arrange same-day or next-day inspection for urgent roofing where possible, and we are reachable seven days.

Because water travels. It enters at a flashing or lap, runs along a purlin, a rafter or the underlay, and drops at the first low point — which can be metres from the entry. That is why leak-tracing is a real skill and why "just seal around the stain" fails so often. Proper diagnosis follows the path back uphill to the true entry point.

Most roofs here benefit from professional cleaning every 2–3 years. Roofs with heavy tree cover or a south-facing aspect that never dries out may need it annually to stop moss and lichen establishing. Roof cleaning typically runs $300–$1,400 depending on size, pitch and how much growth has taken hold before you start.

It is both. Moss and lichen hold moisture against the surface, accelerate coating breakdown on steel and erode the surface of concrete tile, and clumps break loose and block downpipes. Treatment typically runs $250–$1,400 depending on roof size and severity, and treating early is dramatically cheaper than replacing a coating that moss has already worked through.

Not at high pressure, on most roofs. Aggressive blasting drives water up under laps and flashings, strips the surface off concrete tile and can cut through aged coating on steel. Soft washing with the correct treatment does the same job without the damage. If a cleaning quote leads with pressure, ask what pressure and what it does to your specific material.

From the ground with binoculars: lifted or slipped tiles, rust streaks, missing ridge mortar, sagging lines, and moss coverage. From inside the roof space on a dry day: daylight, damp timber, stained underlay. Do not walk a tiled roof — you will crack tiles you cannot see from the ground and turn an inspection into a repair bill.

Every roofing job carries a workmanship warranty on the terms set out in your quotation, alongside the manufacturer warranty for the product itself — most Colorsteel and tile products carry manufacturer cover in the 15–50 year range depending on grade and environment. Keep both documents together; warranty claims later depend on being able to produce them.

Typically: unapproved penetrations cut by another trade, incompatible metals in contact, walking damage, aggressive cleaning outside the manufacturer’s guidance, and neglected maintenance in high-corrosion coastal zones where the product warranty assumes periodic washing. Before letting any other trade onto a new roof — aerial, solar, air conditioning — check whether their fixing method affects your cover.