Where we work · Climate Zone 2
Cellulose insulation in Bundaberg.
Sub-tropical coastal plain on the Burnett River, about 365km north of Brisbane, with the beaches of Bargara and the Coral Coast a short drive east and cane-and-forest hinterland (Gin Gin, Childers) to We bring our own cellulose fibre insulation up from the Tiaro factory and insulate Bundaberg homes to keep the summer heat out of the roof and the winter warmth in.
The local picture
What Bundaberg homes actually need.
Bundaberg sits almost at sea level on the coast, but the region runs from the beaches at Bargara up onto the cane and forest country behind it — and the higher you go inland, the cooler the nights and the more frost you'll see. Here's how the Bundaberg region's towns stack up. They're all NCC Climate Zone 2, so the insulation job is the same family of work, but a high-set timber home up at Childer
Bundaberg in brief
Founded
Settled from the late 1860s on the Burnett River; the sugar industry took off through the 1880s and Bundaberg was proclaimed a city in 1913.
People
About 73,700 people in the Bundaberg urban area at the 2021 Census, with close to 100,000 across the wider Bundaberg Region (ABS 2021).
Industry
Sugar cane and milling, Bundaberg Rum and Bundaberg Brewed Drinks, small-crop and macadamia farming, the Port of Bundaberg at Burnett Heads, tourism (turtles, beaches, rum) and health and aged care.
Setting
Sub-tropical coastal plain on the Burnett River, about 365km north of Brisbane, with the beaches of Bargara and the Coral Coast a short drive east and cane-and-forest hinterland (Gin Gin, Childers) to the west — NCC Climate Zone 2.
Why Comfort Zone
Cellulose insulation, by the family that makes it.
The only cellulose insulation maker still operating in Queensland.
We manufacture every bag ourselves in our own factory at Tiaro. The other Queensland cellulose makers have closed down over the years — these days our competitors buy theircellulose from us. Choose Comfort Zone and you’re dealing with the family who actually makes the product, start to finish.
We make our own cellulose
Most cellulose insulation sold in Australia is manufactured interstate. Ours is made at our own Tiaro factory, so you deal with the family who makes it, not a sales rep reselling someone else's product.
Three generations, since 1986
Peter learned the trade from his father, Lyle, and runs the business today with his sons — a real family business that's been insulating Queensland homes for nearly 40 years.
QR-code batch-tracked bags
Every bag we pump into your roof is QR-coded and tracked back to its production batch and your job — traceability the big national brands can't offer.
Don’t take our word for it
Here’s what Colin, a fellow Bundy local, reckons about us.
Filmed on a real Kepnock job — not a paid actor.
Read the transcript
Neil from Comfort Zone Insulation and we just insulated Colin's house here in Bundaberg. Um yeah I'm just for saying I'm really quite surprised you made the effort to come this way. I was really happy. It was really an efficient and quite a professional job that you guys did. Very quiet, you guys knew exactly what you're going to do, how you're going to do it and I was really happy.
Bundaberg climate
The weather your insulation has to handle.
- Hottest day on record
- 38.6°C on 22 February 2021 (BoM Bundaberg Aero, station 039128) — by a quirk of history the same date Bundaberg's own Bert Hinkler landed his solo England-to-Australia flight back in 1928
- Average summer afternoon (January)
- Mean January maximum 30.4°C, and Bundy averages about 74 days a year over 30°C — that's the heat sitting on your tin roof and pushing down into the ceiling (BoM 039128, 1942–2026)
- Summer humidity (the sticky part)
- January relative humidity averages 70% at 9am and 61% at 3pm — it's the muggy heat that wears you down, so a cool ceiling cavity matters as much here as the raw temperature (BoM 039128)
- Coldest morning on record
- 0.8°C on 18 July 1963 (BoM Bundaberg Aero 039128) — Bundy doesn't get Toowoomba frosts, but it can get a genuine bite on a clear winter morning
- Mild winter (the upside)
- July, the coldest month, still averages a 22.3°C maximum with a 10.3°C overnight minimum — short, mild winters, but the cold pours out through an uninsulated ceiling overnight all the same (BoM 039128)
- Annual rainfall
- About 999.7mm a year, most of it falling in the summer storm season Dec–Mar (BoM 039128) — and a wet roof is exactly when a hidden leak does its quiet damage, which is where cellulose's habit of holding a leak in one spot earns its keep
Bundaberg's long-term BoM record (Bundaberg Aero, station 039128, running since 1942) shows the warm season doing more of the heavy lifting each decade — more days nudging over 30°C and warmer overnight minimums, which is the muggy part that stops a house cooling down after dark. The hottest day on the books, 38.6°C, landed recently on 22 February 2021. None of that changes the honest message: in a Zone 2 coast town the win is mostly summer comfort — keeping the heat out of your roof cavity and giving your air-conditioner an easier night — with a sealed, gap-free ceiling paying you back on the cold winter mornings too. Cooler in summer, warmer in winter, year round.
Climate outlook reviewed 2026-06-11; local job counts updated 2026-06-26. Sources: Bundaberg Aero climate statistics — Bureau of Meteorology (station 039128) · Bundaberg 2021 Census QuickStats — Australian Bureau of Statistics · NCC climate zone map — Australian Building Codes Board · Bundaberg Regional Council.
Bundaberg at a glance
- Climate zone
- Climate Zone 2 — what R-value that needs
- Postcodes
- 4670, 4662, 4660, 4671
- Local picture
- About 73,700 people in the Bundaberg urban area at the 2021 Census, with close to 100,000 across the wider Bundaberg Region (ABS 2021).
Bundaberg is NCC Climate Zone 2 — hot, humid summers and mild winters. The cellulose fibre insulation job here is led by summer (a gap-free ceiling that blocks the radiant roof heat and saves on cooling), with the same blanket holding your warmth in on the cool winter nights.
What Zone 2 actually needs — straight from the NCC
Bundaberg sits in NCC Climate Zone 2, where the code asks for about R2.5 of added ceiling insulation (NCC 2022 Housing Provisions, Part 13.2.3, Table 13.2.3c) — and we install a deep, gap-free R3.0 cellulose fibre insulation blanket as standard, a touch over the minimum. It's a cooling-dominated climate, so there's no point chasing a giant R-value the weather won't reward; getting the blanket seamless and gap-free across the whole ceiling matters far more, so it stops the summer heat coming in and holds your winter warmth in. Beware quotes citing an “R4.1+” or “R5.5+” ceiling figure — that's the whole-of-home total-system / NatHERS number, not the added insulation an installer actually fits.
Read it yourself: NCC 2022 Housing Provisions, Part 13.2.3, Table 13.2.3c — free from the ABCBThe season ahead — and why it matters for your insulation
Bundaberg's long-term BoM record (Bundaberg Aero, station 039128, running since 1942) shows the warm season doing more of the heavy lifting each decade — more days nudging over 30°C and warmer overnight minimums, which is the muggy part that stops a house cooling down after dark. The hottest day on the books, 38.6°C, landed recently on 22 February 2021. None of that changes the honest message: in
Colder than you think
It’s colder around Bundaberg than in it.
Bundaberg sits almost at sea level on the coast, but the region runs from the beaches at Bargara up onto the cane and forest country behind it — and the higher you go inland, the cooler the nights and the more frost you'll see. Here's how the Bundaberg region's towns stack up. They're all NCC Climate Zone 2, so the insulation job is the same family of work, but a high-set timber home up at Childers feels its winters differently to a beach house at Bargara.
| Town | Height | Avg July night | Frosts / year | Avg summer day |
|---|---|---|---|---|
| Bargara / Coral Coast | ~8 m | ~11–12°C | Virtually none — the ocean keeps it mild | Sea breeze takes the edge off, but tin roofs still bake |
| Bundaberg city | ~31 m (BoM Aero) | 10.3°C avg (0.8°C record) | Rare, the odd cold snap | 30.4°C avg Jan, ~74 days/yr over 30°C |
| Gin Gin | ~110 m | Cooler inland nights | Occasional light frost on clear mornings | Hotter days, less sea breeze than the coast |
| Childers | ~114 m | Cooler than the coast | Occasional frost up on the tableland | Warm cane-country days, cooler nights |
- All of these towns sit in NCC Climate Zone 2 — sub-tropical coast — so the headline job is keeping summer heat out of the roof cavity.
- The coast (Bargara, Burnett Heads, Elliott Heads) barely frosts because the ocean buffers the overnight cold; the inland towns (Gin Gin, Childers) sit higher and cool off harder at night.
- Whether you're at the beach or up on the cane, a tin roof in a Bundy summer radiates heat straight down into your ceiling — that's the cavity we fill, edge to edge, with cellulose fibre insulation.
Source: Bureau of Meteorology, Bundaberg Aero station 039128 (records 1942–2026); elevations from topographic data. NCC 2022 climate zones, ABCB.
A bit about Bundaberg
We know this patch.
- Bundaberg is the home of Bundaberg Rum — the Bundaberg Distilling Company has been turning the district's molasses into rum since 1888, and the giant polar-bear 'Bundy Bear' is about as Bundaberg as it gets.
- Mon Repos, just east of town near Bargara, is the largest loggerhead turtle rookery in the South Pacific — every summer the turtles come ashore to nest right on Bundaberg's doorstep.
- Bundaberg is Bert Hinkler's home town — the pioneer aviator who in 1928 was the first to fly solo from England to Australia. The Hinkler Hall of Aviation in the Botanic Gardens tells his story.
- The district grows around a fifth of Queensland's sugar cane, and the Millaquin and Bingera mills have been crushing cane here since the 1880s — Bundaberg has been a sugar town for nearly 150 years.
- The Burnett River runs right through town, and in January 2013 ex-Cyclone Oswald pushed it to a record 9.53m at the Bundaberg gauge, flooding more than 2,000 properties — locals still talk about the 2013 flood, and a lot of homes were rebuilt and re-insulated afterwards.
Local links: Bundaberg Aero climate statistics — Bureau of Meteorology (station 039128) · Bundaberg 2021 Census QuickStats — Australian Bureau of Statistics · NCC climate zone map — Australian Building Codes Board · Bundaberg Regional Council · Burnett River flood information — Bundaberg Regional Council
What we’d recommend in Bundaberg
The insulation that suits Bundaberg homes, and why.
A Bundy tin roof radiates summer heat straight down into the ceiling, so a deep, gap-free cellulose fibre insulation blanket that blocks that heat (and holds your warmth in on a cool winter morning) is the first and biggest job — start here.
Bundaberg's full of high-set timber homes up on stumps to catch the breeze; polyester underfloor batts stop the heat radiating up through the floor in summer and the chill in winter.
A lot of Bundaberg ceilings were soaked or pulled apart after the 2013 flood, or are just old and settled — we strip the dead batts out and pump in fresh cellulose fibre insulation that works.
That’s what we see most in Bundaberg, but every home is different. Browse all our insulation services or ask for a quoteand we’ll tell you what yours needs.
Underfloor, done right
Underfloor insulation for Bundaberg's high-set Queenslanders
Bundaberg is full of classic high-set timber Queenslanders up on stumps, and that open space under the floor is doing two things to your comfort that you can feel year round. In winter, on one of those clear 0.8°C-record kind of mornings, the cold air sits under the house and the cold soaks up through bare floorboards into your feet. In summer it's the opposite problem you don't think about: you pay to run the air-conditioner, the cool air it makes is heavier than warm air so it sinks, and a good slab of it just falls straight out through the gaps in your floor and into the open air below. You're cooling the underside of the house. We fix that by fitting our custom-made polyester floor batts up between the joists from underneath, snug against the floorboards with no gaps — they hold themselves in place without staples and they're better in winter than the thin stuff.
Now, if your place is a slab-on-ground home — and plenty of the newer Bundaberg estates out at Branyan, Kalkie and Ashfield are slabs — then underfloor insulation isn't a job you need. A concrete slab sits on the ground, there's no cavity under it to insulate, and honestly the slab works in your favour in a Zone 2 climate by holding a steady temperature. We'll tell you that straight: if you're on a slab, save your money and put it into the ceiling where it actually counts. We'd rather talk you out of a job you don't need than sell you one you don't.
The reason coverage matters so much underfloor is the same reason it matters in your ceiling. A timber floor on its own is only about R0.25 (YourHome, the Australian Government's housing guide), so there's almost nothing stopping that heat flow until you add insulation. And gaps wreck it — the insulation industry's own 2024 ICANZ data shows that leaving roughly 6% of the area as gaps can cut the effective R-value of an installed layer by about half. That's why we fit floor batts tight and continuous, the same way we pump cellulose fibre insulation edge-to-edge in the ceiling: it's the coverage, not the brand on the bag, that does the work. The NCC sets the target R-values for Zone 2; our job is to actually hit them on site, with no gaps.
Watch: real jobs
See the work for yourself
A few from our own channel: does cellulose really settle, the flame test, and why we pump it in instead of laying batts.
Filmed on real jobs over the years — our methods, safety standards and products have moved on since. Subscribe to the channel for more.
The difference
On a Bundaberg roof: what we run into, and how we do it.
Where we’ve helped — suburb by suburb
8+ Bundaberg homes, and the postcode for yours.
Find your suburb below — the number is how many homes near you we’ve helped with advice or work. These are only the last few years we’ve kept digital records for, a fraction of what we’ve done since 1986, so if there’s no count next to your suburb yet, be the first on your street.
Bundaberg & surrounds
8+ homes helped here
- 4670Bargara2 homes
- Bundaberg East1 home
- 4670Burnett Heads1 home
- 4670Kepnock1 home
- Svensson Heights1 home
- 4670Millbank1 home
- 4670Kalkie1 home
- 4670Bundaberg Centralbe the first
- Bundaberg Northbe the first
- Bundaberg Southbe the first
- Bundaberg Westbe the first
- 4670Innes Parkbe the first
- 4670Coral Covebe the first
- 4670Elliott Headsbe the first
- 4670Mon Reposbe the first
- 4670Avenell Heightsbe the first
- 4670Norvillebe the first
- 4670Walkervalebe the first
- 4670Ashfieldbe the first
- 4670Branyanbe the first
- 4670Gooburrumbe the first
- 4662Moore Park Beachbe the first
- 4660Childersbe the first
- 4671Gin Ginbe the first
Counts are de-identified contacts from our records — homeowners we’ve helped with advice or work, not just completed jobs. See the customer map.
Your local team
Bundaberg is looked after directly by Comfort Zone HQ — for now.
Right now Bundabergis served straight out of our family HQ and Tiaro factory, the same people who make the cellulose. Every job is done to one standard, photographed, and the photos checked before you’re invoiced.
Want to run Bundaberg as your own business?
We’re looking for the right local owner-operator for this patch. If you’re passionate about the building trade — or you already run a business that fits, like air-conditioning, pest control, roofing or solar, and you want a high-margin add-on product to take to the customers you already have — we’ll train you from the ground up. You don’t need insulation experience; you need the right attitude and a patch you want to own. We make the product, we teach you to install and sell it, and you build a family business of your own — backed by the factory.
Bundaberg questions
Insulation in Bundaberg — your questions, answered.
Does my Bundaberg house really need insulation if it barely gets cold here?
Fair question, and it's the one I get most up your way. The honest answer is that in Bundaberg the job is mostly about summer, not winter. You've got about 74 days a year over 30°C and a humid heat that sits on your tin roof and radiates straight down into your ceiling cavity. Cellulose fibre insulation stops that summer heat pushing in through your roof, so the house stays cooler and your air-conditioner doesn't have to fight all afternoon. And it works the other way in winter too — Bundy's been down to 0.8°C on record, and a sealed, gap-free ceiling keeps that warmth in and the cold out on those clear mornings. Cooler in summer, warmer in winter. It's not a winter-only product.
What R-value do I need for a house in Bundaberg?
Bundaberg is NCC Climate Zone 2, and for a typical roof the National Construction Code (NCC 2022) calls for an added R-value of R4.1 in the ceiling. That's the number we insulate to — not an inflated one. There's a sales trick going around where blokes try to sell you 'more R is always better', and it's just not true: past the right R-value for your zone and roof, extra insulation does nothing for you, like putting on a second coat of sunscreen. We quote you to the NCC figure for Bundaberg and that's it.
My place is a high-set Queenslander — can you do under the floor as well as the ceiling?
Absolutely, and a lot of Bundy homes are exactly that. Under a high-set timber floor we fit custom-made polyester floor batts up between the joists, snug with no gaps. In winter that stops the cold soaking up through the floorboards; in summer it stops your air-conditioner's cool air — which sinks because it's heavier — from just falling out through the floor into the open air under the house. If you're on a concrete slab though, you don't need underfloor at all, and I'll tell you that straight rather than sell you a job you don't need.
We've got the old downlights in the ceiling — is it safe to insulate over them?
This is important and I won't cut corners on it. The old-style halogen and 240V downlights run very hot, and because cellulose insulates so well it traps that heat — it can cook the lamp and even make it drop out of the ceiling. So we never cover them. We shroud the old ones with a poly cover and keep a clearance around them, and the same for exhaust fans, transformers and any flue. If you've upgraded to modern LED IC-rated downlights, those are designed to be covered and we can insulate right up to them. Either way, every job is set up safe before a single fibre goes in.
Do you come out and inspect before you give me a price?
No need — we quote Bundaberg jobs online and the price we give you is a fixed price, not a 'from' price that gets bumped up when we turn up. I've personally insulated 6,000 houses, so between your roof type, your ceiling area and a few questions, I can price it properly without making you wait around for an inspection. The only time we'd come out first is if there's something genuinely unusual we can't sort out from your answers, and we'd tell you that up front.
It rains hard here in the storm season — what happens if my roof leaks into the insulation?
This is where cellulose actually beats the batts, and it matters in Bundy because most of your rain comes in summer storms. Cellulose is hygroscopic, which is a fancy way of saying it holds a leak in one spot instead of letting the water run the length of your ceiling. It limits the damage to one area, it dries out afterward, and it leaves a visible stain so you can find exactly where the leak is and get it fixed. Batts just let the water run free across the whole ceiling and into the walls where you can't see it until the damage is done.
Is cellulose safe with the rats and pests we get out in the cane country?
It's the best insulation going for that, honestly. Our cellulose is treated with borate — a natural mineral, mined like salt — and it never evaporates or washes out, so it gives permanent protection against vermin, fire, and mould and dust mites. I call it the only insulation you'll never need to pest-control. Fibreglass batts are the opposite — they end up full of rat and mouse nests, and they're a foul itchy job to pull out and dump. Out in the Bundaberg cane and small-crop country, that borate treatment really earns its keep.
Can you top up the old batts already in my Bundaberg ceiling, or does it all have to come out?
We can top straight over the old batts — no need to rip them out. Pumping about 100mm of cellulose over what's there adds roughly R3.0, fills all the gaps the batts leave, and covers the timber joists (joists are only about R1.5 on their own, so they're a weak spot). You keep the value of the insulation you already paid for, and you avoid the mess, the landfill and the dump fees of tearing it all out. It's the gaps and the coverage that do the work, and topping over with cellulose fixes both.
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Get a quote for your Bundaberg home.
Tell us your address and a few details and we’ll measure online and send a detailed, fixed-price quote. Phone 0414 586 315.