Renovations treat the automated gate as furniture: shift the wall, widen the driveway, pour the new paving, and drop the gate back in at the end. In practice the gate and its automation are an engineered system tied to the geometry of the opening, and every metre you add or move changes what the motor is being asked to do. Handled in the right order, a relocation is a routine part of the build. Handled in the wrong order, it becomes the jackhammered-and-redone part of the build.
To be clear about scope: our retrofit guide covers adding a motor to a gate that has never had one, and our installation mistakes guide covers fault-spotting on a finished job. This article is for the renovation itself — what moving or enlarging the opening does to the automation, and the sequence that keeps it painless.
Geometry Decides Before Budget Does
A gate motor is sized to the gate's weight and its wind area, and both grow with a widening in a way that catches people out. Lengthening a sliding leaf adds weight along its whole run and adds sail area the motor fights on every windy Highveld afternoon; doubling a driveway opening often doubles the load rather than nudging it. Before promising that the existing motor will be re-used, have the new opening measured and the motor re-specified against our sizing guide. The honest answer is sometimes "the motor moves across", and sometimes it is "the motor was borderline before and this pushes it into the next class".
Sliding or Swing Changes the Answer
The gate type decides what "wider" physically costs. A sliding gate needs clear track run equal to the leaf width plus a parking space alongside the opening — widening it eats driveway length that may simply not exist. A pair of swing leaves needs an arc clear of the wall, the slope and the pavement, and on a busier road a wide swing arc is a genuine access problem. If the renovation is the moment the gate type itself is being reconsidered, our sliding versus swing comparison is the place to settle it, before pillars are cast rather than after.
Moving Pillars Means Concrete and Services
New pillar positions mean new foundations, and foundations run on calendar time the same as any new install — the staged wait in our concrete curing guide applies to relocated plinths exactly as it does to fresh ones. Renovations add two complications. First, services: the old pillar may be carrying the intercom conduit, electric fence wiring or the motor supply cable, and every one of those needs a planned route to the new position. Second, approvals: a boundary wall or gate on the street boundary can involve municipal sign-off, which our council approval guide explains, and that paperwork takes weeks nobody budgeted for.
What Happens to the Existing Motor
- Assess it honestly. A motor near the end of its service life is a poor candidate for relocation — our lifespan guide gives the tell-tales. Moving a tired motor to new pillars spends the same labour twice.
- Re-cut the rack. The rack is drilled and shimmed to the old leaf; a widened or re-hung gate needs rack re-aligned along the new travel, which is most of the actual skill in the move.
- Re-route the cable properly. Longer runs to a new pillar change voltage drop on the supply, and cable buried under new paving with no conduit is the fault that costs a second excavation later.
- Re-commission from scratch. Safety beams must be re-aimed and re-tested for the new opening, and force and limit settings re-taught. An automation that has moved is a new automation as far as its settings are concerned.
Sequencing the Build
| Build stage | What the gate and automation need |
|---|---|
| Design | New opening measured; motor re-specified; sliding run or swing arc confirmed; approvals lodged |
| Demolition | Power isolated and locked off; motor, control box and cabling protected or removed; pillars demolished last |
| Civils | New plinths cast and conduits laid for motor supply, intercom and beams — before any slab or paving goes down |
| Walls and pillars | Pillars built plumb and to size with conduit stubs in the right places; curing time respected |
| Gate installation | Gate hung and rack aligned first; motor mounted and coupled only once the leaf runs freely by hand |
| Commissioning | Beams aligned and tested, forces and limits set, handover documents and warranty filed |
The one-line version: conduits and plinths before concrete and paving, gate before motor, settings after everything. The renovation programme is the automation programme — the installer needs to be in the builder's schedule, not summoned after it.
Frequently Asked Questions
Can my existing motor run a wider gate?
Only if it is re-specified against the new weight and wind area. A widening often pushes a borderline motor into the next size class, and the honest assessment costs less than a motor that struggles for a decade.
Do I need approval to move a boundary wall or gate?
Often yes, particularly where the wall sits on the street boundary or the scheme has aesthetic rules. Check the municipal and scheme requirements at design stage — the paperwork moves slower than the builder does.
How long must a new plinth cure before the motor goes on?
The same staged timeline as any new installation: roughly a week before a light residential motor is mounted and run gently, longer for heavy gates. The curing guide sets out the stages and the SA weather caveats.
Can the beams and settings just be moved across?
No. A relocated installation is re-commissioned: beams re-aimed for the new opening, force and limit settings re-taught, and the safety functions tested before the gate returns to daily use.
A renovation is the one moment when the gate can be made wider, quieter, faster and better protected for a fraction of what it would cost as a separate project later — but only if the automation is in the plan before the concrete is. Bring the gate into the design conversation early, and the new driveway will open the way it should. If you are planning changes to an entrance and want the automation spec'd around the build, that is a site visit worth booking.