Batt installers · Brisbane & SE QLD
Batt Installers in Brisbane.
Not what a batt is — what it’s actually like having someone install one. Who’s up in your roof, what they wear, what they do about your downlights, the mess, and what happens after they leave. A family business insulating Queensland roofs since 1986.
Own crews
Sundström PPE on every fibreglass job
Who's up there
Batt installers Brisbane homeowners actually get — our own crew, not day-labour.
It's a big reason our work is consistent, and it's why the PPE and process on this page are the same on every job, not just the ones somebody's checking.
Our own trained team — no day-labour subbies.
The person in your roof is our own crew, or a local Comfort Zone franchise owner whose name is on the job. Accountable, either way.
We install both batts and Cellulose Fibre Insulation.
Polyester batts suit some jobs — under floors, wall cavities, shrouding a hot fitting. We'll tell you which product genuinely fits your roof rather than what's easiest to sell.
Fully insured, licensed, and made to standard.
Made to AS/NZS 4859.1, fixed-price quotes, no deposit, no day-of surprises.
A Comfort Zone installer in a respirator inside a steel-frame roof mid-job — our own crew, in the PPE described below.
Here’s the job done wrong — packs of batts loaded into the roof and never laid out. Customers hardly ever check, and it gets found years later.
Batts loaded into a roof but never laid out
Batt installers on too tight a job just load the packs into the roof — the customer sees them go in, but they're never laid out.
Read the transcript
Batt installers who aren't paid enough, or who are on too tight a job, just load the packs into the roof. The customer sees them go in but they're never laid out — they sit there for years. The customer calls me to redo it and we find them still bagged in a corner. Installers don't care, it's not a career to them, and it's caught maybe 1 in 100 times. I've seen hundreds of examples of this.
What we wear, and what the filter looks like afterwards
The masks my crew wear on fibreglass, and the pre-filter that comes out yellow and pink.
“My concern is any product that irritates the skin just to touch, does not seem like it could be any good for the health of my workers. I make sure my staff use asbestos rated masks and disposable suits any time we are asked to install or remove fibreglass batts or associated products, and sometimes we are still itchy for four days afterwards.”
“When I am topping over a roof full of old fibreglass batts, sealing them in under Cellulose Fibre Insulation with filter caps over the downlights, which is a job I would far rather do than cart the old stuff to the tip, by the time I have finished the prep work the pre-filter on my mask has gone yellow and pink, the same colour as the batts I have been moving. That is only what the filter caught. That is what I would have breathed in without it. Which is why we never use those disposable paper masks and only use the Sundström.”
The exact gear, so nobody has to guess and so anybody can go and buy the same thing. It is a Sundström SR 100 silicone half mask, which comes in three sizes, worn with a Sundström SR 510 P3 R particle filter on it. The SR 100 is approved to EN 140:1998 with an assigned protection factor of 20 on P3, and the SR 510 filter is approved to EN 143:2000 with a filtration efficiency better than 99.997 per cent on the paraffin oil test. Sundström SR 100 product leaflet (manufacturer PDF) ↗ · Sundström SR 510 P3 R product leaflet (manufacturer PDF) ↗
A note on the paperwork. There is no classic chemical safety data sheet for a respirator because a mask is mechanical hardware and not a hazardous substance, so anybody who goes looking for an SDS for it will come up empty or find a completely unrelated product. The manufacturer’s equivalent documents are the product leaflets linked above and the EU Declarations of Conformity, which are the regulatory compliance papers. SR 100 EU Declaration of Conformity ↗ · SR 510 EU Declaration of Conformity ↗ · manufacturer product pages: SR 100 ↗ · SR 510 ↗
On a building site, nobody stands this close without PPE
The same national code that sets my crew’s PPE also says people not doing the work shouldn’t come within 3 metres of it. NOHSC:2006(1990) cl 6.14(j), plus Schedule 1 cl 31(a) and Schedule 3 cl 17(a) — search the PDF for “3 metres” ↗ Years later, when a sparky’s back up there swapping a downlight over batts, they’re well inside that 3 metres with none of it — in forty years on roofs I can count on one hand the ones I’ve seen bother with a mask first. The full detail on what’s actually in that air is on our fibreglass dust page.
- Half mask: Sundström SR 100 silicone, sizes S/M, M/L or L/XL — ordering numbers H01-2112, H01-2012, H01-2812.
- Filter: Sundström SR 510 P3 R, ordering number H02-1312, one each side, with the SR 221 pre-filter to make the filters last on fibre work.
- Australian resellers list the combination as approved to AS/NZS 1716:2012. I have not sighted the certificate at the standards register myself, so treat that as the reseller's claim rather than mine.
- On fibreglass work my crew wears the Sundström half mask and P3 filters, every time.
The part most installers rush
What we do about your downlights before anything gets covered.
There’s a required clearance set by the Australian Standard and by the light fitting’s own instructions, and it depends entirely on what type of downlight is up there. A modern LED stamped IC-4(insulation-contact rated, sealed so it can be covered and abutted) is built to be covered safely — we cap it and pump straight over the top for full coverage. An old halogen or 240 V transformer light is a heat source that can’t be covered, so it gets shrouded with a gap instead.
We’ll flag old hot lights to you even when you’re not asking us to cover them, because a light like that forces a bare patch around itself that pulls down your ceiling’s real R-value on its own. Swapping it to a sealed IC-4 LED is a sparky’s job, not ours — the decision and the cost are yours — but once it’s in, we can insulate right over it with no gap.
Flues get the same treatment: the binding clearance is whatever the flue or appliance maker states, not one flat number — a bare single-skin flue and a shielded proprietary one need very different gaps. We identify what’s actually up there before we quote, not after.
What happens to your house while we're up there
The roof cavity gets fibre in it. Your house shouldn’t.
That’s the job — batts or cellulose, something is going into the roof space above your ceiling. What shouldn’t happen is any of it ending up in your living areas. We shroud the manhole before we start and keep the access point contained for the whole job, rather than leaving an open hole into the roof with fibre able to drift straight down into the hallway underneath.
It sounds like a small detail until you see a job where it wasn’t done. A shrouded manhole against an unshrouded one is the difference between a tidy job and fibre tracked through the house on somebody’s boots.
- Manhole shrouded and access kept contained for the whole job, not just the last five minutes.
- Crew doesn't traipse fibre through living areas — the mess stays in the roof, where the job is.
- Disposable suits and full PPE on fibreglass work (see the PPE section above), so the crew isn't carrying fibre back out through your house either.
A different installer’s access left with no shroud around it — the kind of detail we always cover, on every job, regardless of which product is going in.
What happens once the crew's gone
The job doesn’t end when the truck pulls out.
We photograph situations in the roof as we judge necessary and normally walk you through them on the phone once we finish — available on request if you want to see more. I still like to check the photos from completed jobs, especially the tricky ones, before I authorise the invoice to go out, and I’ve sent a team back to fix even minor faults just because something in a photo wasn’t to standard.
No deposit, fixed price
The number we quote is the number you pay. No “we found more once we got up there.”
Accountable crew, not day-labour
Our own team or a local franchise owner whose name is on the job — not a subbie who won’t be back.
Already got fibreglass batts?
Do you have fibreglass batts in your roof now? We can quote to remove them or fix your insulation so there are no loose particles floating around up there.
We measure and quote online — no site inspection needed to get you a fixed price.
Not sure which one your roof needs? Read the buyer’s guide on what you’re actually buying with batts or the health question on are fibreglass batts safe.
What Brisbane homeowners say
Real reviews, from real roofs across South East Queensland.
David H
Sunshine Coast, 2021
“Completed the job as quoted and to a high standard. Great personal service. Would highly recommend Comfort Zone for ceiling installation work.”
Benjamin H
Carseldine, 2019
“Very good explanation about their works. Advice of existing problems with the roof. Clean work. Very professional.”
Ian G
Burnside, 2019
“Good information, communication and professionalism.”
Straight answers
Batt installers in Brisbane — the questions we get asked.
Are your batt installers your own crew, or subcontractors?+
Our own trained team, or — in a franchise area — the local Comfort Zone franchise owner whose own name and business are on the job. We don't hand your roof to day-labour subbies who come and go. It's a big reason our work is consistent, and it's why we can stand behind the PPE and process described on this page — it's the same on every job.
What do your installers wear on a fibreglass batt job?+
A Sundström SR 100 silicone half mask with SR 510 P3 R particle filters, plus a disposable suit, every time we're asked to install, top-over or remove fibreglass batts or related products. Full detail and the manufacturer links are in the PPE section below.
What do you do about downlights?+
It depends what's actually up there, and we identify it before anything gets covered. A modern LED stamped IC-4 is rated to be covered and abutted, so we cap it and pump straight over the top. An old halogen or 240 V transformer light is a heat source that can't safely be covered, so it gets shrouded with a gap instead — and we'll flag it to you either way because an old hot light forces a bare patch around itself that pulls down your ceiling's real R-value even before you think about insulation.
Will installing batts (or cellulose) make a mess of my house?+
The roof cavity gets fibre in it — that's the job — but the house below shouldn't. We shroud the manhole before we start, keep the access point contained, and the crew doesn't traipse fibre through your living areas. If you want to see what a shrouded manhole looks like against one that isn't, it's in the photos on this page.
Do you remove old fibreglass batts, or install over the top of them?+
Both. We'll tell you which one your roof needs and quote both, so you can see the difference before you decide. Where the old batts are still in reasonable shape, capping the downlights properly and pumping Cellulose Fibre Insulation straight over the top fills every gap, covers the joists, and puts a seamless blanket over the old fibre so it stops getting stirred up every time somebody's up there for the next thirty years. Where they're sunken, gappy or full of nests, removal is the right call. We price both and let you pick.
Do you have fibreglass batts in your roof now?+
We can quote to remove them or fix your insulation so there are no loose particles floating around up there. Start an online quote and tell us what's currently in the roof — we don't need to come out and inspect first.
Ready for a crew that does it properly?
Fixed price, no deposit, our own crews, proper PPE on every fibreglass job — insulation installed right the first time, right across Brisbane & SE QLD.
Peter Johnson
Owner / installer · Comfort Zone Insulation Team® · Since 1986