It is a call we get after most heavy downpours. Water has been pouring over the front of the gutter, straight past the downpipe, and pooling against the brick wall by the laundry. The homeowner already has two quotes to replace the lot, and the numbers are a long way apart. The question is always the same: why does gutter replacement cost so much more from one roofer than another, and which quote is the honest one?
That is the question this post answers. We are not going to throw a national average at you, because a figure pulled from a Perth or Melbourne cost guide tells you very little about a two-storey house in Shell Cove with salt spray coming off the ocean. What we can do is show you exactly what goes into the price, so you can read any quote (ours included) and know what you are paying for.
Gutters are priced by the metre, then the extras pile on
Almost every gutter quote starts with one number: the total length of gutter on the house, measured in lineal metres. A roofer walks the perimeter, measures every eave that carries a gutter and multiplies by a rate that covers the gutter itself, the brackets, the joins and the labour to fit it.
That base rate is only the start. The things that move a quote up or down sit on top of it:
- how many downpipes there are, and whether they are being replaced too
- the gutter profile and the steel it is made from
- the condition of the fascia boards the gutter hangs off
- internal corners, box gutters and awkward roof junctions
- how high and how easy the roof edge is to reach safely
- taking away and disposing of the old gutters
Two quotes can use the same metre rate and still end up far apart, simply because one includes new downpipes and fascia repairs and the other quietly leaves them out. That is usually what is going on when numbers differ wildly.
The steel you choose matters more on the coast
Most gutters we fit around Shellharbour are steel, either Zincalume (the plain silver finish) or Colorbond (the same steel with a baked paint finish in a colour that matches the roof or trim). Colorbond generally costs more per metre than plain Zincalume, and most people choose it because it looks finished and matches the house.
Here is the part that surprises people. If you live close to the water, in Shell Cove, Barrack Heights, Warilla or along Lake Illawarra, salt in the air eats away at steel faster than it does a few kilometres inland. BlueScope makes a product called Colorbond Ultra that is designed for that kind of exposure. It costs more than standard Colorbond, and it is worth asking whether your house sits close enough to the surf to justify it. We give people an honest answer on that, because paying for Ultra in Albion Park, well inland, is often money you do not need to spend.
Profile matters too. A standard quad gutter (the common shape with a curved front) is usually the cheapest to supply and fit. Square line, half round and fascia style gutters cost a bit more, and some older homes have a specific profile that has to be matched on the parts of the house you are not replacing.
Downpipes and fascia are where quotes quietly differ
New gutters with old downpipes is a bit like new tyres on a car with worn brakes. It works, for a while. If the downpipes are rusted at the joints, undersized, or there are simply too few of them for the roof area, the new gutter will still overflow in a big storm. Every downpipe you add or replace adds to the price, but it is often the part of the job that actually fixes the overflow you called about.
Fascia boards are the other one. Gutters are fixed to the fascia, the long board running along the edge of the roof. On older homes it is often timber, and years of water spilling over a blocked gutter can rot it from behind. We cannot always see that until the old gutter comes off. A fair quote tells you upfront whether fascia repair is included, allowed for as a possible extra, or not covered at all. If a quote says nothing about fascia, ask.
Height and access change the labour cost
A single-storey house with clear ground around it is the easiest job there is. A two-storey home, a steep block, or a house where the only access to the back eave is over a pool fence and down a narrow side path takes longer and needs more safety equipment. NSW work safety rules require proper edge protection or scaffolding for work at height, and that setup has a real cost. It is not padding. A quote that is much cheaper on a two-storey house is worth a second look, because the difference may be coming out of safety.
Replacing the lot versus fixing a section
Not every gutter problem needs a full replacement. If one corner is leaking at a join, or a single length has sagged because a bracket let go, a repair can make sense and costs a fraction of a new run. We tell people that straight, in line with the decision first way we work: you get the facts about the condition of your gutters and the options, not a sales pitch.
Full replacement usually makes more sense when:
- rust has come through the base of the gutter in more than one spot
- joins leak all over the house, not just in one place
- gutters have lost their fall and hold water after rain
- you are already doing roof work and want everything to match
Patching a gutter that is rusting everywhere is paying twice. You fix one hole, and the next one opens a few metres along before the next wet season.
Overflowing gutters are also one of the more common causes of water getting into a house that people mistake for a roof leak. If you have a stain on a ceiling near an outside wall, it is worth reading our guide on tracking down where a roof leak is coming from before you assume the tiles are to blame.
Doing gutters with other roof work usually saves money
If your roof is due for replacement or a big repair, it is almost always cheaper to do the gutters at the same time. Access is already set up, the crew is already on site and the colours can be matched in one order. When we price a re-roof, gutters and downpipes are often part of the conversation for exactly that reason. Our post on what a full roof replacement costs in Shellharbour covers how that bigger job is priced.
The reverse is also true. Replacing gutters now and then pulling them off again in two years for a re-roof means paying for some of that work twice. If your roof is getting old, mention it when you ask for a gutter quote.
How to read a gutter quote before you sign
When quotes land on the kitchen bench, these are the questions that sort out which ones are comparable:
- How many lineal metres of gutter are included?
- What profile and what steel (Zincalume, Colorbond or Colorbond Ultra)?
- How many downpipes, and are they new or reused?
- Is fascia repair included, allowed for, or excluded?
- Is removal and disposal of the old gutters included?
- What safety setup has been allowed for on a two-storey house?
If one quote answers all of those and another does not, the cheaper number may not be the cheaper job. Our gutter replacement service covers new gutters and downpipes for homes and commercial properties across the Shellharbour area, and we write our quotes so you can see each of those items.
Get a quote that shows its working
Roofing Shellharbour is led by Ryan Bruce, with more than 10 years of experience on tile and metal roofs. If your gutters are overflowing, rusting through or pulling away from the fascia, we will come out, measure up and tell you whether you need a repair or a full replacement, and what each one involves. Call us on (02) 4215 8188 or book through our new gutters and downpipes page.
Common questions about gutter replacement cost
Is it expensive to replace guttering?
It is usually one of the smaller jobs on a roof, but the total depends on the metres involved, the steel, the number of downpipes and the access. A single-storey house with good access and sound fascia boards is at the lower end. A two-storey coastal home that needs Colorbond Ultra, new downpipes and fascia repairs will cost noticeably more.
Should I replace 20 year old gutters?
Not automatically. Age matters less than condition. If there is rust through the base in several spots, leaking joins all around the house, or the gutters hold water after rain, replacement is usually better value than patching. If they are sound apart from one problem area, a repair may do the job for years yet.
How often should your gutters be replaced?
There is no fixed schedule. How long gutters last depends on the steel, how close you are to the ocean and how often they are cleaned. Gutters left full of wet leaves rust from the inside, so regular cleaning does more to extend their life than anything else.
Is it worth it to replace gutters?
If your gutters are overflowing or rusting through, yes. Water that spills over the edge rots fascia boards, stains walls and can soak the ground near your footings. Fixing the gutters is usually far cheaper than fixing the damage they cause over a few wet seasons.
How much is guttering at Bunnings?
You can buy gutter lengths and fittings from hardware stores, and the material price can look low. What that price leaves out is the labour, the height safety setup, getting the fall right so water actually reaches the downpipe, and disposal of the old gutters. Working off a ladder at the roof edge is also one of the riskier jobs around a house.
What should new gutters cost?
The honest answer is that it depends on your house, which is why a measured quote beats any online average. Compare quotes on the same items: metres, profile, steel type, downpipes, fascia and disposal. Once those line up, you can see which price is genuinely fair.
