DIY or professional security door install in Wollongong?
We are installers, so treat our view accordingly, but the honest answer is not “always pay us”. Some of this work is genuinely fine to do yourself and we will tell you which. The rest hinges on one thing most people miss: a certified door is only certified if it is installed to the standard.
Are you allowed to fit your own?
Legally, yes. There is no licence requirement in New South Wales for fitting a security screen door to your own home, and no development approval is needed for a standard dwelling. Under the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008, security screens on an existing house are exempt development in the Wollongong City Council area, so there is no paperwork to lodge either way. Heritage-listed properties are the exception and should check with council first.
Practically, the catch is that AS 5039 certification only applies to a door installed to AS 5040. A certified door screwed into a rotten jamb with the wrong fixings is no longer a certified installation, and that is the part that decides whether it stops anybody. The certificate is for the assembly, not the object. This matters for more than pride: it is exactly the question an insurer asks after a forced-entry claim, which we cover on the insurance page.
What AS 5040 actually asks of an installation.
AS 5040 covers how a security screen door or window grille is fixed to the building so that the tested performance survives the transfer to a real opening. It deals with fastener type, spacing and edge distance, fixing into sound structural material rather than architrave or render, hinge and receiver placement, and the requirement that the assembly resists the same jemmy and pull loads as the tested door. Most DIY failures are fixing failures, not door failures.
That is worth sitting with. AS 5039 puts a door through a serious battery of tests: a dynamic impact test, a knife-shear test, a jemmy test, a pull test and a probe test. Manufacturers spend real money passing them. Then the door arrives at a Wollongong house and gets attached to the building by eight screws. If those eight screws go into 12mm of pine architrave nailed to a gap, every one of those tests is now irrelevant, because the failure plane has moved from the door to the wall. A crowbar does not care how good your mesh is if it can lever the whole frame out in one piece.
What you genuinely save.
Less than people expect. A retail hinged security door is commonly $350 to $600 for the door alone, against $450 to $750 supplied and installed for an equivalent perforated-aluminium door from us. Once you add a hire or purchase of a hammer drill, decent bits, a laser level and the fixings, the genuine saving on a single standard door is often under $100. The saving grows on a whole-house job, but so does the risk surface.
A worked comparison.
Take a single front hinged door on a brick home in Figtree, inland, so perforated aluminium or 304 stainless both suit. Doing it yourself: a mid-range off-the-shelf aluminium security door at $520, masonry bits and stainless fixings at $45, a hammer drill hire for the day at $50, and a set of one-way security screws at $18. That is $633 and roughly half a Saturday, assuming the opening is square and nothing goes wrong. Our supplied-and-installed price for the same door, measured to the actual opening, fixed to AS 5040, warranted in writing, is $560 to $680. The saving is somewhere between negative $70 and positive $50.
The arithmetic changes on volume. Five openings done yourself might save $400 to $600 in labour, which is real money. It also multiplies the number of chances to get a fixing, a measurement or an egress lock wrong by five. Our full itemised rates are on the pricing page if you want to run your own version of this sum.
The four mistakes that come back to bite.
Four things go wrong most often on DIY security door installs, in order. Fixing into architrave or render instead of the structural jamb, which lets the whole door be levered off. Using galvanised or zinc-plated screws with stainless mesh, which sets up galvanic corrosion that blooms within a couple of Wollongong summers. Ordering to a single measurement when the opening is out of square. And fitting a keyed deadlock to a bedroom or sole-exit door with no key-free internal release, which is a genuine fire-egress hazard.
Why the fixings one is specific to here.
The galvanic problem is worse in the Illawarra than almost anywhere. Salt-laden moisture is an excellent electrolyte, and AS 4312 rates the coastal Wollongong strip as corrosivity category C4 to C5. Put a zinc-plated screw through 316 stainless mesh in Corrimal and you have built a battery that runs every time the humidity comes up. It will weep rust down the door inside two summers. The same screw in a dry inland town might last a decade. Hardware store staff cannot know your street; a local installer does.
Why the egress one is the serious one.
The other three cost money. This one costs more than that. A security door on a bedroom or the sole exit from a habitable room must be openable from inside without a key, because in a house fire nobody finds a key. We fit a key-free internal release on those openings as standard and we do not treat it as an optional extra. The full compliance picture is on the fire-egress rules page.
The jobs we would happily tell you to do yourself.
Yes, there is security door work that is fine to DIY. Re-screening an existing flyscreen frame is a genuinely good DIY job, the mesh and spline cost about $15 to $25 an opening against our $35 to $70, the tools are cheap, and there is no security or egress consequence if you get it slightly wrong. Swapping a like-for-like flyscreen door closer or a set of rollers is also reasonable. The line we would draw is anything that is load-bearing for security or life safety.
- Do it yourself: re-screening flyscreens, replacing a spline, swapping sliding door rollers, fitting a like-for-like closer, cleaning and rinsing screens.
- Borderline: a new flyscreen in a simple square opening, if you are comfortable measuring.
- Get it done properly: anything AS 5039 rated, anything on a bedroom or sole exit, anything sliding on a track, retractable screens, pet doors into glass, and every opening on a coastal street where the fixing metallurgy matters.
If you want to weigh up installers rather than doors, the how to choose page covers what to ask. Product detail is on security screen doors and window security screens, and suburb-level notes are on Dapto and Unanderra.
Where we install.
Rather have it done to the standard?
Measured to your opening, fixed to AS 5040, hardware specced to your salt exposure, warranted in writing.