Guide · Brisbane & SE Queensland · 40 years in the trade

How not to get ripped off by an insulation company in Brisbane.

To find a reputable insulation installer in Queensland, ask four things: are the installers employees or subbies, is the quote fixed and in writing, do they want a big deposit, and can they show you photos of finished jobs?

After 40 years I’ve seen every trick in this trade. Here’s how to spot a dodgy insulation mob before they get on your roof: seven common traps, why each one happens, and the exact questions to ask so you don’t get burnt. None of it’s complicated; it’s just the stuff the cowboys hope you won’t ask.

Get an honest quote Ask Peter: 0414 586 315

A finished job, photographed

edge-to-edge coverage you can actually see, the opposite of “trust me, mate”

Why this trade, in particular

Insulation is the easiest trade in Australia to cheat in.

I’m not having a go at the trade I’ve spent my life in, but I’ll be straight with you about why it attracts cowboys. Insulation hasn’t been a licensed trade since 2006, so any bloke with a ute and a ladder can call himself an insulation contractor. And it’s the rare job where the customer almost never inspects the finished work. You can’t climb into your own eaves to check it was packed right. Put those two things together and you’ve got a trade that’s wide open to anyone willing to cut a corner.

That’s the thread running through every trap below. With pumped-in cellulose there’s really only one way to short you (pump less in) and it’s measurable, because we can show you the depth across the whole ceiling. With batts there are a dozen ways to short you, and they rarely get caught. I’ve seen 100m of R3.0 batts stretched to cover 300m at R1.0, and the customer never noticed. He said the bloke was a real nice guy, too.

“After 40 years I’ve seen every trick in this trade. The good news is that every one of them gives itself away if you ask the right question first.”
Peter Johnson, Comfort Zone Insulation Team

How a competitor laid fibreglass batts (lumpy, gapped and uneven across the joists) and the customer thinks they’re fully insulated. You’d never see this from the manhole.

A concrete tile roof with several cracked and chipped tiles grouped toward the back, broken by another contractor and left out of sight — A solar mob smashed these tiles and quietly shuffled the broken ones to the back of the roof, where the owner wouldn’t spot them. We photograph what we find.

The seven things to do

1. Ask who actually turns up, an owner-operator, or a cheap subbie.
2. Get a fixed written quote, not a “sign today” price.
3. Don’t pay a big deposit “for materials”.
4. Ask to see before-and-after photos.
5. Right-size the R-value. Beware the over-spec upsell.
6. Beware door-knockers, fake line items and builder margins.
7. Remember the pink-batts lesson.

The seven traps

Name the trick, then prove the opposite.

For each one: here's the trap, why it happens, how to protect yourself, and how an honest mob proves the opposite. Use it as a checklist before you let anyone on your roof.

Ask who actually turns up, an owner-operator, or a cheap subbie.

The trap

A polished salesperson signs you up, then an unbranded van of subbies you've never met turns up to do the actual work, paid by the square metre, in a hurry, and with no idea what was agreed at the kitchen table. When it's wrong, the sales company blames the subbie and the subbie blames the sales company, and nobody owns the result.

Why it happens

Plenty of the bigger insulation outfits are really sales companies. They sell the job and farm the install out to whoever's cheapest that week. Subbies paid per-square-metre have one incentive, speed, and speed is the enemy of a roof packed properly into every corner. Insulation hasn't even been a licensed trade since 2006, so any bloke with a ute and a ladder can call himself an installer.

How to protect yourself

Ask the question straight: 'Who actually does my roof, someone running their own business and building their own name in my area, or a per-square-metre subbie who's gone by smoko?' Ask who you call if something's not right in six months, and whether the same business that quoted you stands behind the finished job. A mob with real skin in the game will tell you about who turns up; a mob that subs everything out to the lowest bidder will get vague.

How we prove the opposite

Your job is done by a Comfort Zone franchise partner (a carefully-chosen owner-operator running their own family business to our systems and standards) not a cheap subbie or a hired labourer who moves on to the next job. They’re building their own reputation in your area, so they’ve got real skin in the game to do it right. Every job is photographed and the photos are checked before you’re invoiced. That’s our system, the same on every job. The full answer is on do you use subcontractors, who actually turns up to insulate your roof.

Get a fixed written quote, not a “sign today” price.

The trap

The price is only good if you sign tonight. There's no itemised written quote, just a number, a clipboard and a bit of pressure. Then on the day the price somehow climbs, or the scope quietly shrinks, and you've got no document to hold them to.

Why it happens

A 'sign today or the price goes up' line is a sales tactic, not a real quote. It exists to stop you ringing around and comparing. Some operators even ask what you paid for the house, to gauge how much they reckon they can get out of you. A real quote is a written promise; a verbal 'special price tonight' is a trap with the door already closing.

How to protect yourself

Never sign under time pressure. Get the quote in writing, itemised, with the product, the R-value and the area it covers spelled out, and make sure it says the price is fixed. A genuine installer is happy for you to take it away, think it over and compare it. If they won't put it in writing or won't give you a ballpark over the phone, that's your answer.

How we prove the opposite

You come to us, no door-knockers, no cold calls, no “sign today” pressure. You get a fixed, itemised written quote for the right R-value for your roof, and we don’t lift a quoted price once we’ve started. If you’re weighing up quotes, here’s the honest reason we’re sometimes a bit dearer, and why it’s value, not price.

Don’t pay a big deposit “for materials.”

The trap

They want a hefty deposit upfront 'to buy your materials', take the money, and then go quiet: no-show, calls unreturned, and you're left chasing your own cash. Deposit-then-disappear is one of the most common complaints in this trade.

Why it happens

A fly-by-night operator with no real business behind them needs your money to fund the job, or to fund their next disappearing act. The 'I have to buy materials first' line sounds reasonable, which is exactly why it works. An established business that holds its own stock doesn't need your deposit to get started.

How to protect yourself

Be wary of any large upfront deposit, especially from someone you found through a door-knock or a cold call. Pay on completion wherever you can, after you've seen the finished job. Check the business has a real history (an ABN, a fixed presence, reviews that go back years) not just a magnetic sign on a borrowed van.

How we prove the opposite

We don’t pressure you for a deposit to “buy materials”. We make our own cellulose at our Tiaro factory, so the product’s already ours. You get a fixed written quote and pay on satisfactory completion, once you’ve seen the finished, photographed job. We’re an established Queensland family manufacturer, not a ute-and-ladder crew, read our story since 1986 or just get a no-deposit quote.

Ask to see before-and-after photos of finished jobs.

The trap

Once the insulation's in, you can't see it. You can't climb into the eaves or the tight corners to check it was packed right, so a cheat counts on the fact you'll never look. Half-filled roofs, missed eaves, batts shoved in with gaps along every seam, and the customer thinks they're fully insulated.

Why it happens

Insulation is the rare trade where the customer almost never inspects the finished work. That's a gift to anyone cutting corners. A 5% gap can cost a big chunk of your effective R-value, and you'd never know it was there. This is exactly the fear the pink-batts scheme burned into people, cases where no insulation was actually installed at all.

How to protect yourself

Ask to see before-and-after photos from real, finished jobs, and ask whether they'll photograph yours. A serious installer documents the work, including the edges and the tricky spots you can never get to. If they can't show you photos of completed roofs, or won't photograph yours, ask why not.

How we prove the opposite

Every job is photographed (before, during and after) and the photos are checked before you’re invoiced, so you can see edge-to-edge coverage including the eaves and the corners you could never climb up to check. That’s our system, run the same way on every job by franchise owner-operators trained to one standard. It’s also why a seamless pump-in product beats a batt you can’t lay without gaps, see why an R5 batt isn’t an R5 in your roof.

Right-size the R-value. Beware the over-spec upsell.

The trap

A salesman talks you into a sky-high R-value and a whirlybird on top, because the bigger number sounds safer and the add-ons pad the bill. You pay for performance you'll never use in this climate, and the install quality, which actually matters, gets no attention at all.

Why it happens

Over-spec sells. A bigger R-number and a roof full of vents feel like 'more', so they're easy to upsell, often on commission. But in a Brisbane roof, chasing R6 when R2.5 is the code minimum doesn't fix the thing that actually robs your R-value: gaps. Whirlybirds on an already-insulated ceiling are the classic 'would you like fries with that' add-on.

How to protect yourself

Know your climate zone before you buy. Brisbane is NCC Climate Zone 2, where the minimum added ceiling insulation is about R2.5. Ask the installer to justify any number above that, and be sceptical of vents pushed onto an already-insulated roof. Right-sizing the R-value, and installing it with no gaps, beats overselling a number every time.

How we prove the opposite

Here in Climate Zone 2 the NCC’s minimum added ceiling insulation is about R2.5; we typically install to around R3.0 rather than overselling a number you don’t need. And we don’t push whirlybirds on commission. See exactly what your roof needs in climate zones & R-value for SE Queensland, and the honest take on whether whirlybirds are worth it.

Beware door-knockers, fake line items and builder margins.

The trap

A door-knocker offers a 'government rebate' or a too-good-to-be-true deal. The quote carries a mysterious '$500 electrical re-route' line item. Or your builder quotes you three or four times the honest difference for an insulation upgrade, banking on you not knowing the real cost.

Why it happens

Door-knock and cold-call selling exists to catch you off guard, before you've had a chance to compare. Fake line items like an 'electrical re-route' bank on you not knowing that batts and loose-fill simply sit on top of existing cabling. There's nothing to re-route. And builders often mark insulation up hard inside a bigger contract, because it's a small line buried in a big number you won't itemise.

How to protect yourself

Don't buy insulation off a door-knock or a cold call. Go and find the installer yourself. Question any line item you don't understand and ask what it's actually for. If it's part of a builder's contract, ask for the insulation broken out separately and get an independent quote to compare. Knowing the honest market rate is your best protection against a padded bill.

How we prove the opposite

We don’t door-knock and we don’t cold-call. You come to us. Because we make the cellulose ourselves there’s no middleman markup, and you get a clean, itemised quote with no invented extras. Watch Peter walk through the common tricks in the scam-awareness video below, then ask us anything straight.

Remember the pink-batts lesson. It’s on the public record.

The trap

The 2009–10 Home Insulation Program flooded the trade with inexperienced, rushed operators. The aftermath was investigated by a Royal Commission: four young installer deaths, more than 90 house fires, widespread fraud, and cases where homes were charged for insulation that was never actually installed. It taught a whole generation to distrust insulation installers.

Why it happens

When a scheme throws easy money at a trade overnight, it draws in cowboys: avaricious operators hiring untrained day-labour and rushing them into hot, live roofs. The damage wasn't the insulation itself. It was who was installing it, how fast, and with what training. That's exactly the gap between a real, established installer and a fly-by-night chasing a quick dollar.

How to protect yourself

Judge an installer on experience, training and proof, not on the lowest price. Ask how long they've been doing this, who trains their people, and whether they can show you the finished work. The cowboys the scheme created are precisely who you want the opposite of: a long-running business, trained installers, and photographic proof the insulation is actually there and to the right depth.

How we prove the opposite

I ran an established insulation business before, during and after that boom and bust, so I watched the cowboys come and go. We’re the opposite of what the scheme created: a long-running Queensland family manufacturer whose franchise owner-operators are trained to one standard, with photo proof on every job. You can read the public-record story of the scheme on the Royal Commission into the Home Insulation Program and in SBS’s coverage of its findings, then read our story.

Watch it explained

Every scam you should know about home insulation contractors.

I sat down and recorded the tricks I’ve watched homeowners fall for over 40 years: the stretched batts, the fake line items, the “sign tonight” pressure, the deposit that vanishes. To be clear, this is me explaining the scams so you can avoid them. It’s not a scam itself. Ten minutes here could save you a roof full of trouble and a few thousand dollars.

If you’d rather read it, everything in the video is covered in the seven traps above. If you’d rather just talk to a person, get in touch and ask me straight.

What honest looks like

An honest mob answers every trap with something you can check.

Anyone can say they're honest. The difference is whether they can hand you a verifiable artefact for each fear above, not a slogan.

An owner-operator, not a cheap subbie

Your job is done by a Comfort Zone franchise partner running their own family business to our systems and standards, building their own reputation in your area, not a labourer who moves on to the next job.

Who turns up?→

A fixed, written quote

Itemised, with the product, R-value and area spelled out, and the price fixed once we start. No “sign today”, no surprises on the day.

Get a quote→

No big deposit

We make our own cellulose in Tiaro, so the product’s already ours. You pay on satisfactory completion, after you’ve seen the finished job.

Our story→

Photos of every job

Before, during and after. The photos are checked before you’re invoiced, so you can see the coverage you can’t climb up to check.

Why gaps matter→

The right R-value

We install to about R3.0 for Brisbane’s Climate Zone 2 (at or above the NCC minimum) not an over-spec number you don’t need.

R-value for SE QLD→

No commission upsells

We don’t push whirlybirds or vents on an already-insulated roof. Once your ceiling’s right, they add little.

Whirlybirds: worth it?→

Dodgy jobs, caught on camera

Years of bad installs I've walked into and put right: wrecked by sparkies, half-finished batt jobs, the lot. Press play and the “jobs wrecked by bad tradesman” playlist runs right here.

▶ Watch the full “Ceiling jobs wrecked by bad tradesman” playlist Subscribe to the channel

The clips play right here on the page, or open the playlist to watch them all on YouTube and subscribe.

Some of these were filmed a while back. Our methods, safety standards and products have moved on since. For how we work today, see the rest of this page.

Straight answers

The questions homeowners ask me before they book.

How do I find a reputable insulation installer in Queensland?+

Ask the questions a dodgy mob can't answer well. Who actually turns up to do your roof, someone running their own business and reputation in your area, or a cheap per-square-metre subbie? Will you get a fixed, itemised written quote, not a 'sign today' price? Do they want a big deposit before they start? Can they show you before-and-after photos of finished roofs? A reputable installer answers all four straight, photographs your job, and lets you pay on completion once you've seen it done.

Should I pay a big insulation deposit upfront for materials?+

Be careful of anyone who wants a large deposit 'to buy materials' and then goes quiet. Deposit-then-disappear is one of the oldest tricks in this trade. We make our own cellulose at our Tiaro factory, so the product's already ours. You get a fixed written quote and pay on satisfactory completion, after you've seen the finished, photographed job. If a salesman pressures you for hundreds of dollars before a single bag goes in the roof, slow right down and ask why.

What R-value do I actually need for a Brisbane roof?+

Brisbane sits in the National Construction Code's Climate Zone 2, where the minimum added ceiling insulation is about R2.5. We typically install to around R3.0 (comfortably at or above the minimum) rather than overselling a higher number you don't need for this climate. If a salesman is pushing R6 plus a whirlybird on top, that's an upsell, not advice. Once your ceiling is properly insulated to the right R-value, the gaps and the install quality matter far more than chasing a bigger number on the bag.

Are whirlybirds and roof vents worth it if my ceiling is insulated?+

Usually not, and they're a classic add-on upsell. The NCC only requires roof-space ventilation in the cold southern climate zones (6 to 8), not here in South-East Queensland's Zone 2. Once your ceiling is properly insulated to the right R-value, vents on top gain you little, and an honest installer won't put them on your quote 'with a side of fries'. If someone is pushing whirlybirds on an already-insulated roof, ask them to show you, in plain numbers, what you'd actually get for the money.

How do I know the insulation was actually installed properly?+

You can't climb into your own roof and check the tight corners and eaves, which is exactly why the pink-batts era went so wrong, with cases of no insulation actually installed. The answer is photographic proof. Every job is photographed and the photos are checked before you're invoiced (that's our system, the same on every job, run by franchise owner-operators who care about their own reputation) so you can see the finished coverage edge to edge, including the spots you could never get to. If an installer can't show you before-and-after photos of finished jobs, that tells you something.

Was this helpful?

Want a quote from a mob that does it right?

Thanks for reading this far. Now you know the questions to ask, ask them of whoever you call, and ask them of us. You’ll get a Comfort Zone franchise owner-operator who works to our system, a fixed written quote, no big deposit, and photos of the finished job. Whatever you decide, I’ll give you an honest quote and an honest answer.

Get an honest quote Call Peter: 0414 586 315 Email admin@insulation.team

Peter Johnson

Owner / installer · Comfort Zone Insulation Team® · Since 1986

Want the bigger picture? Read why cellulose wins, see why an R5 batt isn’t an R5 in your roof, or just get your quote started.

Know the trade and want to do it properly yourself? We make our cellulose in Tiaro and we’re looking for installers to join the family, ask about a Comfort Zone franchise territory.