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Security Gates Ashburton
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The most expensive mistake on a mid-Canterbury entrance is not the gate. It is a post concreted 300 mm onto the neighbour’s side of an unsurveyed boundary. Group One New Zealand builds security gates for Ashburton properties, and the first conversation is usually about where the line actually runs and what the ground under the posts is doing. Sydney Chappell started the New Zealand company in 2026, and crews travel down from Islington in Christchurch. Phone us on 027 424 0600, 7am to 3pm Monday to Friday, and we will come out and look at the entrance with you.
Before a post goes in the ground
Ashburton District Council is blunt about this, and it is the one piece of advice that saves real money: find the boundary pegs of your property, or have the boundary surveyed, before you build a fence. Getting it wrong can mean moving the structure later. A gate makes that worse than a fence does, because the posts are the heaviest and deepest part of the whole line, and they are the part you least want to dig out twice.
Two other things get checked at the same visit. What is buried where the post holes go, and whether the gate is going to be tied into anything else. A gate hung off a structure that is joined to a retaining wall stops being a simple gate job at that point, and the council treats it differently.
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Industries We Serve
We proudly serve clients across a range of sectors, including:
Hospitals
Aviation Surfaces
Schools
Sporting Surfaces
Factory Safety Lines
Body Corporate
What a security gate means on a rural entrance
A security gate here is a fabricated leaf hung at the entrance to a property: a farm race, a yard, a lifestyle-block driveway, a rural-commercial frontage. Steel, aluminium or timber, hung on posts set into the ground, swinging or sliding. It is not a shopfront security door, which belongs to another trade. It is not the release gate that software teams run in a build pipeline, which happens to share the words. Everything on this page is made in New Zealand and installed on a Canterbury site.
Wide openings, uneven ground
Primary industries make up 27.0% of this district’s GDP against 6.2% nationally, and that shows up in the entrances. The openings are sized for machinery, stock trucks and grain trailers rather than a family car, and the ground is often gravel, rutted or falling away from the road.
That combination rules things out fast. A wide swing leaf needs a clear arc over ground that stays level through the whole travel, which a gravel entrance rarely gives you. A slider on a ground track has the same problem in reverse: the track has to stay clean, and on a stock or harvest entrance it will not. A cantilever slider carries the leaf clear of the ground with no track at all, and on rural sites that is usually where the conversation lands. A bi-fold is the answer where there is neither arc room nor run-back. Alongside any of them, a pedestrian gate keeps people out of the opening a truck is using.
What holds the leaf shut
Hinges and locking do the work the name suggests. Anti-lift detail on the hinges means the leaf cannot be raised off its pins, exposed fixings are tamper-resistant, drop bolts on a double swing land in sockets set into the ground, and locking points are placed for the height of the leaf with clearance underneath kept tight. On an entrance machinery uses, that hardware also has to survive being knocked, which is a different specification from a gate that only ever sees a car.
Behind it sits the structure. Frame section is sized to the leaf, so a six metre farm opening carries far heavier box section than a personnel gate, and infill is welded or mechanically fixed into the frame rather than screwed to the face of it. Post size and footing depth are set for leaf weight and for the ground they are going into, which on plains gravel is a different calculation from a town section, and they are set once the boundary is known rather than before. Steel is hot-dip galvanised and then powder coated. Where an anti-climb head is wanted, that means extended vertical bar, a raked top or a rolled edge.
Timber, steel, aluminium and stainless steel
Our range of materials covers wood, steel, aluminium and stainless steel. Steel gives the stiffest frame and handles the widest rural openings. Aluminium is lighter, so it loads the hinges, posts and footings less, which extends the life of a long leaf that gets used hard. It does not rust. Stainless goes into fixings and exposed fittings. Timber is the traditional look on a lifestyle-block entrance and moves with the seasons, so a timber infill on a steel or aluminium frame will stay square years after a full timber gate has started to drop.
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Client Testimonials
5.0 Stars / 21 + reviews
The team from Group One were exceptional.
They arrived on time, did a fantastic job and made our childcare centre carpark look like new . Thankyou
Prompt and efficient service.
Very professional and experienced. Syd always answers his phone otherwise calls you back. Highly recommended.
Highly recommended.
Competitive price, quality work and even helped me put up the customer parking signs. Went above and beyond. Thanks very much, Syd and Blake.
Great job and no complaints!
Wonderful to work with and helping us get our line marking completed. Would definitely use again and refer to others.
Highly Recommend Group 1 Linemarking!
We recently hired Group 1 Linemarking for a few of our residential strata projects, and the results exceeded our expectations. The team was punctual, professional, and clearly experienced. The line marking was crisp, precise, and done exactly to spec. Communication throughout the process was smooth, and they were flexible with scheduling, which made things a lot easier on our end. If you need reliable, high-quality line marking services, I wouldn’t hesitate to recommend Group 1. Great job!
Working with Syd and his team is always a pleasure
The quality of work is always to a high standard. The Group One team is always professional, they apply a high standard for safety ensuring their SWMS is tailored for the job and their equipment is serviced and well maintained. I highly recommend Group One and if you use them you won’t be disappointed.
Ashburton District Council, heights and the retaining wall test
You can build a fence up to 2.5 metres in height from natural ground level. Above 2 metres, the Council recommends talking to its Planning Department about whether a resource consent is required, and that conversation is worth having before a design is drawn rather than after.
Retaining walls are where a gate job quietly changes category. A fence on top of a retaining wall needs a building consent if the retaining wall is more than 1.5 metres high and the fence more than 2.5 metres high. If the fence and the retaining wall are joined, a building consent is required regardless. Swimming pool fencing is separately regulated and enforced by the Council, and a pool or spa barrier gate never falls under a general exemption. Where the gate sits on a shared boundary, the Fencing Act 1978 governs how you and your neighbour deal with it. Confirm the current position with Ashburton District Council before the job is priced or started.
Nor’westers, frost and what they do to a gate
Canterbury’s strongest winds blow from the north-west, and a wide solid leaf catches all of it. The load goes through the hinges into the post and down into the footing, which is why big solid gates on exposed plains entrances tend to be the ones that sag first. Vertical bar, palisade and mesh infills let the wind through while staying difficult to climb.
Winter southerlies bring hard frosts across the plains, and frost with seasonal ground movement works on shallow footings and fills a ground track. Both argue for footing depth chosen for the site rather than by habit.
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What we need before we can price it
Pricing is on quote, and a quote is only as good as what is known on the day it is written. Three things are worth having ready before the visit:
- Where the boundary actually runs, from the pegs or from a survey. A post set on the wrong side of that line outprices the gate standing on it.
- The widest thing that uses the entrance, whether that is a stock truck, a grain trailer or a header coming off the road.
- Whether the gate is going to be tied into anything else, a retaining wall in particular.
The familiar inputs then apply: clear opening width and gate height, frame section and infill, locking hardware and drop bolt sockets, leaf weight read against post size and footing depth in plains gravel, the fall across the opening, and the finish. How the crew reaches the gateway along a race or a lane, and a date that fits around your season, both count as well.
The job then runs design, manufacture, installation. Made in New Zealand throughout, with a guarantee on the work and after-sales service behind it.
Group One New Zealand, and who cuts the steel
Drawing, cutting and welding all happen before anything is loaded, which means the person who stood at your boundary pegs with a tape is the person who then has to make a frame fit the opening they measured. That is the argument for keeping fabrication in-house on a mid-Canterbury entrance: a farm gateway on gravel, with fall across it and a retaining wall somewhere in the picture, does not forgive a frame built off somebody else’s sketch. Sydney Chappell set the New Zealand company up in 2026. It is a short crew list, working out of Islington in Christchurch and running down the plains to Ashburton. Anything older than that sits across the Tasman, and the company says so directly: “Although Group 1 Line Marking has just started here in New Zealand, as a group we have been operating in Australia for almost 25 years.” Everything we build is listed on the page.
Call 027 424 0600 to Request a Free Quote
Find your pegs before we come out
If you can locate the boundary pegs before the site visit, or get the boundary surveyed where they have gone missing, everything after that gets easier and cheaper. It is the one job on this page you can do without us.
Phone us on 027 424 0600 or email info@groupone.co.nz, 7am to 3pm Monday to Friday. Group One New Zealand, Unit 1, 37 Foremans Road, Islington, Christchurch 8042. NZBN 9429053752833.
Call 027 424 0600 to Request a Free Quote
Comprehensive Line Marking & Safety Services
Safety and Palisade Fencing
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Areas We Serve
- Security Gates Amberley
- Security Gates Ashburton
- Security Gates Christchurch
- Security Gates Darfield
- Security Gates Kaiapoi
- Security Gates Methven
- Security Gates Rangiora
- Security Gates Rolleston
- Security Gates Timaru
Other Services Available in Ashburton
- Automatic Gates Ashburton
- Bollards Ashburton
- Commercial Gates Ashburton
- Convex Safety Mirrors Ashburton
- Custom Gates Ashburton
- Driveway Gates Ashburton
- Gate Access Systems Ashburton
- Industrial Gates Ashburton
- Line Marking Ashburton
- Safety and Palisade Fencing Ashburton
- Speed Humps Ashburton
- Wheel Stops Ashburton
Questions we get from Ashburton properties
What do security gates cost in Ashburton?
Quoted per site. Opening width, height, frame and infill spec, hardware, ground conditions and finish all move the figure, and a rural entrance usually needs more post and footing work than a town one.
Can we have a timber gate that will not sag?
Timber infill on a steel or aluminium frame is the way to get the look and keep the leaf square. A wide gate built entirely from timber will eventually drop on its hinges.
Is an aluminium gate strong enough for a farm entrance?
On the right section, yes, and the weight saving is genuinely useful on a long leaf. Steel still wins where the opening is very wide or the gate will take knocks from machinery.
Our fence sits on a retaining wall. Does that change things?
It can. If the wall and the fence are joined, a building consent is required, and the height thresholds also apply. Talk to the Council before the posts are ordered.
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