Antenna repair or replace? The decision every caller is actually making
Nobody rings about an antenna for fun - you are deciding whether to spend a little now or more once. Here is the decision table we use on roofs, published.
By the Topline Antennas crew · Published 24 August 2026 · Brisbane, QLD
The short answer
The decision table
| What the roof shows | Verdict | Why |
|---|---|---|
| Antenna turned or tilted by wind, hardware sound | Repair | Realignment and a mount re-tension is quick and holds if the fixings are healthy |
| Corroded saddle, connector or first metre of coax | Repair | The antenna is often fine - moisture at the connection was the whole fault. Common after Brisbane summers |
| One bent or missing element on an otherwise sound, young antenna | Repair - usually | Performance loss from a single director is modest; judged against age |
| Boom snapped, multiple elements gone, or the antenna is on the lawn | Replace | Structural damage is not economically repairable against the cost of a quality new unit |
| Rust beyond the connector - flaking boom, seized clamps | Replace | Corrosion that has reached the structure keeps failing joint by joint - a repair buys months, not years |
| Wrong antenna for your transmitter (band or plane) | Replace | No repair fixes wrong physics - see the transmitter map. Common in the south-east |
| Pre-2013 wideband antenna with 4G interference | Replace or filter | A 4G filter can rescue a healthy old antenna; a tired one is better replaced with a current filtered design |
The economics behind it: a realignment or connection repair is a fraction of a supply-and-install, so when hardware is sound, repair wins. But two repairs a year on a corroding antenna costs more than replacing it once - what you are really buying with replacement is the next decade of not thinking about it, backed by our 5-year workmanship warranty. Market pricing context is in the cost guide.
The 10-year rule of thumb
How long do TV antennas actually last?
In Brisbane conditions - UV, summer storms, salt air near the bay - a quality antenna gives roughly 10 to 15 years; budget hardware often half that. Age matters less than what age brings: corroded joints, UV-embrittled cable, and a design from before the digital restack. If your antenna predates 2013, it was aimed and banded for a channel layout that no longer exists - it may still work, but it is the wrong tool, and it is usually the reason "it has never been quite right".
The honest test is not the calendar, it is the meter: we read the signal at the antenna and at the outlet. Strong at the antenna and weak at the outlet is a cable/distribution repair. Weak at the antenna on a healthy unit is aim or site. Weak everywhere on tired hardware is a replacement conversation - with the reading to show for it, not a shrug.
After the storm
Storm damage: the insurance angle nobody explains
A storm-damaged antenna is routinely claimable under building insurance - but claims fail on evidence, not on damage. Before anything is touched: photograph the antenna from the ground (and the roof if safely visible), keep any debris, and note the storm date. Insurers ask for a cause-and-repair report; we provide that as part of the callout, and it names what failed, why, and what reinstatement costs. Get the quote before the excess decision - a realignment can be cheaper than your excess, and a destroyed antenna usually is not.
Not sure which side of the table you are on? One visit, a meter reading, and a straight repair-or-replace answer → or call 0467 098 943.