LPS design and install
Air terminals or a mesh conductor, tape down the walls, earth electrodes in inspection pits, bonded back to the main earth per AS/NZS 3000. Tested and handed over with a certificate and an as-built drawing.
from $7,500
AS 1768 · Rolling sphere · Perth metro
We don’t stop lightning. We give it somewhere better to go.
Air terminals, down conductors, earthing and surge protection for commercial buildings across the Perth metro. Roll the AS 1768 sphere over your roof and see where a strike can reach.
- EC00000 electrical contractor (placeholder)
- $20m public liability
- On Perth roofs since 2011
- Annual test to AS 1768
$20,214
a 40 × 20 m concrete-roofed building, 8 m to the parapet, at
Level III — design, 12 air terminals, 200 m of tape, 8 down conductors, earthing and
certificate.
Rolling sphere
45m
Level III · air terminals
Roof plan — the grid
Detail A — the sag
Set it to your building
Lightning attaches where a sphere of a set radius can touch. Air terminals hold that sphere off the deck; the question is only how far apart they can stand before it sags between them. Change anything below and the drawing above answers it.
Roof length40 m
40 m
Roof width20 m
20 m
Height to the roof8 m
8 m
Protection level
Roof
Air termination
Terminal height
What’s inside
| Line | Amount |
|---|---|
| Estimate, ex GST | $20,214 |
Hazardous area — this one isn’t a web-page quote
The sphere tells us where a strike can reach; what your building actually needs is a risk assessment against AS 1768, and we do that on site before we quote a single finial. This drawing is a sizing tool, not a design — nothing on this page is certified, and a lightning protection system does not prevent a strike. It gives the current a preferred path to earth.
What we do, and what it starts at
Six things. The floors below are real starting figures for the Perth metro — the estimator above cannot produce a number lower than the design-and-install floor, because that floor is the cheapest job we take.
Risk assessment to AS 1768
The part your insurer keeps asking about. We walk the roof, count what’s on it, look at what’s inside and what the loss would be, and write the protection level down with the reasoning behind it.
from $1,850
Annual test and certificate
Continuity across every joint, condition of the tape and clamps, and a resistance reading at each electrode. You get a dated certificate and a defect list, which is what the auditor wants to see.
from $780
Earth-resistance testing
Fall-of-potential on each electrode, with the pit lids up and the readings logged against the drawing. Sandy Perth soil drifts upward through summer, so the number matters more here than it does east.
from $560 a visit
Surge protection
A separate subject to the roof, and usually the one that actually costs you money: mains SPDs at the switchboard and protection on the comms, fibre and control cables coming into the rack.
from $3,200
Repairs and reinstatement
Tape pulled off by a reroof, clamps that have gone green, terminals taken down for solar and never put back. We reinstate to the original design and re-certify it.
from $680 a visit
2011On Perth roofs since. Around 240 systems installed and about 400 tested a year.
EC00000Electrical contractor licence (placeholder pattern) and licensed electricians on every crew.
$20mPublic liability, plus $10m professional indemnity on the design work.
AS 1768Designed and tested to it, with earthing and bonding interfaces to AS/NZS 3000.
What people say
“Our insurer wanted an AS 1768 assessment and I had no idea where to start. They walked the roof on the Tuesday, and the report explained why we were Level III and not Level I in language I could hand to the board.”
Rebecca T. · facility manager, Malaga
“Priced the gym roof for us off the architect’s drawing, then came out and told us the deck we’d specified was already the air termination and the finials weren’t needed. That conversation cost them work and won them the earthing package.”
Dane M. · site manager, Canning Vale
“Comms room took a hit through the fibre, not the roof. They put SPDs on the incoming services and re-tested the earth, and the annual certificate has turned up on time three years running.”
Priya S. · operations, Osborne Park
Where we work
Welshpool out, north to Joondalup and south to Rockingham. Roof access, height safety and scaffold are arranged by us — most jobs need an EWP or a rope crew, and that gets priced once we’ve seen the parapet.
Sixteen suburbs on the map, and everything between them. Anything past Mundijong, Yanchep or the hills we still quote, with travel shown separately on the proposal.
- Welshpool
- Malaga
- Canning Vale
- Osborne Park
- Bayswater
- Midland
- Jandakot
- Bibra Lake
- Henderson
- Kwinana
- Rockingham
- Fremantle
- Joondalup
- Wangara
- Forrestdale
- Perth CBD
Questions we get asked on the roof
Will a lightning protection system stop my building being struck?
No, and anyone who tells you otherwise is selling something. AS 1768's own
language is that the system provides a preferred path to earth: air terminals
intercept the strike, down conductors carry it down the outside of the building, and the
electrodes put it into the ground away from your switchboard, your cabling and your
people. The building still gets hit. It just doesn’t get hit through the roof sheet.
How do you decide whether my building needs one at all?
A risk assessment to AS 1768 — strike density for the location, the size and
height of the structure, what it’s built from, what’s inside it and what the loss looks
like if it burns or stops. That produces a protection level, and the level sets the sphere
radius, the mesh size and the down-conductor spacing. The four levels we show on this page
carry the standard’s published radii (20, 30, 45 and 60 metres); the plain-English
building types beside them are our shorthand for where our jobs usually land, not a
classification out of the standard.
What’s actually in the price?
Design and the AS 1768 assessment, the air terminals or mesh, the roof
conductor, one down conductor per length of perimeter set by the protection level, an
earth electrode and inspection pit at the foot of each down conductor, and the test and
certificate at handover. Access — scaffold, EWP or rope — is priced once we’ve seen the
parapet, and it is not in the figure on this page. Neither is GST.
My roof is 0.6 mm Colorbond. Do I still need air terminals?
Usually not. AS 1768 accepts metal sheeting of 0.5 mm or thicker as a natural
air-termination where puncture of the sheet is acceptable and there’s nothing flammable
directly beneath it — the roof is the terminal. What you’re buying then is
bonding at the sheet, the down conductors and the earthing, not finials. Set the roof chip
to “metal deck” above and watch the terminal count go to zero and the price drop.
Is surge protection part of a lightning protection system?
It’s a separate subject in the standard and a separate line on our quote, and
in a data or comms building it’s the part that saves you money. A structural system
protects the fabric; it does nothing for a transient arriving on the fibre, the mains or a
control cable. SPDs at the switchboard and on the incoming services are what protect the
equipment, coordinated with the earthing per AS/NZS 3000.
We store diesel and LPG on site. Can I use this calculator?
No — and the page won’t let you. Protecting a hazardous area is a different
design: bonding and separation distances, equipotential earthing, and an assessment of the
classified zones before anything is fixed to a tank. Select “fuel or LPG storage” above
and the estimator stops rather than guessing. Call us and we’ll come and look at it.
Book a site risk assessment
Tell us where the building is and what’s on the roof. We’d call you back within one business day, and the assessment fee comes off the install if you go ahead with us.
- Assessment credited against the install
- Roof access arranged by us
- Written report, not a verbal
Prefer the phone? Weekdays 6.30am to 4pm on (08) 9000 0406. Storm-damage callouts are triaged the same day between November and March.
Thanks — we’ve got it.
We’d call you back within one business day to book the roof visit.
This is a demonstration page, so nothing was actually sent. On the real site this would land in the job board and open a lead against the address.