Service the Unit.
Your Ladder
Stays Put.
HVAC work means repeated climbs, equipment to move and equipment that demands your attention. Lock Jaw secures your ladder to the gutter, helping reduce unwanted movement so you can focus on the service.
The Service Call Is Already Demanding Enough.
Your Ladder Shouldn't Be Another Thing to Manage.
A service call can mean climbing up, coming back down for tools, repositioning and climbing again. When you're working around a customer's property, the last thing you need is a ladder that shifts every time you use it.
Repeated access
Tools to carry
Working around the property
Lock the Ladder to the
Gutter Itself
When you're moving from one service task to the next, you need a ladder that's quick to secure and ready when you are. Lock Jaw clamps directly to the gutter in about five seconds — no straps, no tools and no second person holding the ladder.
You're the One Doing the Service.
We've Got the Ladder.
You're diagnosing the problem. You're carrying the tools. You're getting the customer back up and running. Lock Jaw simply supports your ladder so you can focus on the job.
- The ladder shifts against the gutter
- Brace it with your body or rely on a spotter
- Manage the ladder while trying to focus on the service
- Stop and reposition when access changes
- Secure the ladder directly to the gutter
- Set up without relying on a spotter
- Climb with the ladder secured
- Spend less time managing the ladder and more time on the service
Secure in
Three Steps
Position
Place the ladder against the gutter and position Lock Jaw over the gutter, with the bar behind the ladder rail.
Clamp
Open the handle, position the jaws firmly under the gutter lip, then push the handle down until it clicks securely into place.
Secure
Adjust the bar assembly until it sits firmly against the ladder rail. Check that Lock Jaw is fully clamped and the ladder is secure.
Built for the Demands
of HVAC Work
Residential HVAC
Access roof-mounted equipment at homes and townhouses without making the ladder another part of the service problem.
Rooftop Units
Up and down the ladder dozens of times on a rooftop service call - Lock Jaw keeps every placement secure with no spotter needed.
Built for
the Way HVAC Techs Work
Fast Setup
Secure the ladder in about five seconds without straps or extra tools.
Built for Repeat Service
Quickly secure and reposition the ladder as the job requires.
Less Physical Bracing
Stop using your body to manage ladder movement and stay focused on the service.
Gutter Protection
Rubber-padded contact points help protect aluminium/aluminum, steel and copper gutters.
Works With Your Equipment
Designed to work with the ladders HVAC technicians use every day.
Less Time Managing the Ladder
Secure it and get back to the job.
WHS LADDER SAFETY
OSHA Ladder Safety
Safe Work Australia guidance recommends that workplace ladders are positioned on firm, stable and level surfaces and secured against displacement. Lock Jaw is designed to help secure your ladder at the gutter, helping reduce unwanted movement while you work at height.
"At first we purchased two to trial. By the following week every technician was asking when they could get one for their truck. Now our whole fleet of 25+ service trucks carries two each - it keeps our ladders perfectly secured every time."Dime K. · Verified buyer
"What a brilliant idea - makes getting up and down the ladder much safer."
"Great device for keeping the ladder from slipping. So good I bought two for extra strength. So simple and easy to use - just Aussie brilliance."
"Lock Jaw is such a great added safety item. I use it every time I set up the ladder."
The Lock Jaw
Ladder Grip
Lock your ladder to the gutter. Get the stability you need to climb, work and focus on the job.
- Fits most gutters
- Fast shipping Australia-wide
- 30-day money-back guarantee
30-Day Money-back Guarantee
Try it on the job. If it's not the steadiest your ladder's ever been, send it back.
Ships Australia-Wide
Fast domestic dispatch - protected on your very next job, not weeks from now.
Award-Winning Design
Backed by 18+ international industry awards and years of proven use worldwide.
HVAC Technician FAQs
Will it damage my customer's gutters?
No. Lock Jaw uses rubber-padded clamps on all contact points. It grips firmly without scratching, denting or distorting aluminium, steel or copper gutters. Not for use on plastic or vinyl gutters.
What gutter sizes does it fit?
Lock Jaw fits the vast majority of standard gutters - typically 4" to 6" profiles.
Does it work on steep-pitch roofs?
Yes. Lock Jaw was designed specifically for steep-pitch roof work, where lateral ladder movement is most dangerous. The clamping mechanism holds firmly regardless of roof pitch.
Can I move it quickly between placements?
Absolutely. The quick-release design lets you unclamp, reposition and re-secure in under 10 seconds - ideal when you're working around the perimeter repeatedly.
What ladders is it compatible with?
It works with the majority of extension and multi-position ladders HVAC crews use, including telescopic. Check the rail spec on the product page before you order.
How fast is shipping?
Orders ship quickly from within Australia, so you're protected on the very next job - not weeks from now.
You've Got the Unit.
We've Got the Ladder.
Join the HVAC crews who've made Lock Jaw standard kit on every job. Secure the ladder, focus on the service, finish steady — and get home to your family every night.
Buy Now - Ships Australia-Wide