Professional Ground Treatment
for Stability & Support

Concrete joints play a vital role in allowing controlled movement of slabs and preventing uncontrolled cracking — but they don’t last forever. Exposure to traffic, weather, chemicals, and UV light can break down sealants. Once a joint fails, it allows water, dust, grit, and other contaminants to enter the slab system.

This can lead to:

  • Erosion of the subgrade
  • Loss of load transfer between slabs
  • Spalling and chipping of joint edges
  • Moisture ingress and freeze-thaw damage (in colder climates)
  • Increased cleaning and maintenance costs

Our joint sealing and refurbishment service restores the function and appearance of joints so your concrete performs as designed and often involves concrete edge repairs. We select the right sealant system for your application, whether it’s a high-load industrial hardstand, a driveway, or an external pavement exposed to weather.

We service:

  • Industrial & Commercial: Warehouse floors, hardstands, car parks, aprons, factories, workshops
  • Infrastructure: Bridge decks, plaza areas, public spaces
  • Residential: Driveways, patios, pool surrounds, garage floors
Professional Ground Treatment

Areas We Service:

With offices in Brisbane and Sydney, we travel nationally to deliver remedial building and waterproofing services across all states of Australia: QLD, NSW, VIC, NT, SA , WA and TAS.

MORE THAN 10,000
PROJECTS

200+ YEARS COMBINED
EXPERIENCE

LICENSED & INSURED

RESIDENTIAL, COMMERCIAL
& INDUSTRIAL

See the Results

Before

Ground Treatment before

After

Surface following ground treatment, showcasing compacted soil layers or structural reinforcement after stabilization.

Our Process – From Assessment to Completion

We follow a methodical process to ensure your joints are sealed to perform in their intended role:

Joint Protection Systems icon

Inspection & Assessment

Evaluate joint design, current condition, movement requirements, and environmental exposure.

Backer Rod Installation

Backer Rod Installation

Controls sealant depth and prevents threesided adhesion, allowing the joint to move without tearing the sealant.

Subgrade Stabilisation icon

Preparation

Remove all failed sealant, debris, and contaminants. Clean and dry joints to maximise adhesion.

Surface Hardening Treatments icon

Sealant Application

Select from polyurethane, silicone, polysulphide, semi-rigid epoxy, or polyurea based on movement, load and exposure.

Crack Repair icon

Edge Repair (if required)

For spalled or damaged arrises, rebuild with compatible repair mortars or semi-rigid fillers.

Trafficable Coatings icon

Finishing & Curing

Tool for a neat finish, allow curing per manufacturer’s specification, and return to service in the shortest safe timeframe.

Sealant Selection Factors:

Joint width
and depth

Expected movement (expansion, contraction, shear)

Traffic load and type (pedestrian, forklift, vehicle)

Exposure to water, chemicals, or UV light

Temperature
range

Benefits of Professional Joint Sealing

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Helps protect against water and debris entry

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Maintains joint flexibility for slab movement without uncontrolled cracking

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Reduces joint edge breakdown under load

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Improves hygiene in food or pharmaceutical environments by reducing debris traps

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Improves aesthetics for visible slabs like driveways, plazas, and decorative concrete

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Cost-effective maintenance that can extend slab service life

Contact Us

Testimonials

WS Remedial Group place picture
4.5
Based on 92 reviews
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George.garifalia Dakis profile picture
George.garifalia Dakis
08:59 23 Jul 26
I have worked closely with Dan and Kelly on a few projects in Darwin. Dan and Kelly have been a great pleasure and very professional to work with. I highly recommend WS Remedial for any water stop solutions, they do know their stuff.
Logan Siegel profile picture
Logan Siegel
04:12 20 Jul 26
Had a really positive experience with WS Remedial. The team was friendly, easy to communicate with and clearly knew what they were doing. They explained things in a straightforward way and were professional throughout. Would happily recommend them.
Michael Holmes profile picture
Michael Holmes
01:18 16 Jan 26
On-site crew are easy to work with, team gets the job done, no dramas and very professional in the work they do.
And although it was almost Christmas when I asked for their services, Kelly made it all happen smoothly and was terrific to work with.
Thanks
Mellissah Smith profile picture
Mellissah Smith
05:11 10 Dec 25
The professionalism of these guys is off the charts. I have a building that has water damage. Their people came in, gave a full comprehensive review - then told me the most cost effective way to fix it.
Eric Jones profile picture
Eric Jones
02:33 05 Dec 25
Excellent Service and Mick did exceptional work in addressing our problems
Amanda Jarrett profile picture
Amanda Jarrett
04:49 04 Jul 25
Waterstop Solutions recently conducted repairs works on our community centre. We found the pre works checks and logistics by Kelly excellent and responsive to our needs. Dudley and his sidekicks conducted themselves extremely professionally, kept us informed and followed our sign-in protocols to the letter. I would not hesitate to recommend this excellent business.
Keyur Prajapati profile picture
Keyur Prajapati
01:29 20 Jun 25
Highly recommend Waterstop Solutions! They really know their stuff when it comes to keeping water out of buildings. Cris did an excellent job professional and efficient. Looking forward to referring more clients!
Aaron Ritchie profile picture
Aaron Ritchie
10:10 11 Apr 25
Great service from Angus at assessment and quotation, through to Mariette to organise the booking, and finished by Dudley and Tyson completing the job. Would certainly recommend WaterStop for their professional manner and quality workmanship.
Photo from customer review
Greg Latemore profile picture
Greg Latemore
06:34 04 Apr 25
My wife and I have been delighted with the professional services provided by the Waterstop team including Angus, Tom and Ash. They took the time to understand and diagnose the water problem at our residence, and problem-solved to come up with the optimum solution. Time will tell but we are confident that the grinding, injections and vapour layer will solve the issue. We are impressed with how they related to us and the care they took. Highly recommended.
warwickkd profile picture
warwickkd
04:06 04 Apr 25
Water stop Solutions is my one stop shop to fix difficult water leaks. Having managed apartment buildings for 20 years I’ve had my fair share of water leaks. WaterStop solutions are my first call. I was lucky enough to get Mick on the job this morning. He showed up on time, reviewed what needed to be done and got into it. Job site was left, clean and tidy. I appreciate their good work and you will too
Laura Bean profile picture
Laura Bean
08:21 01 Apr 25
We had a frustrating issue with water leaking into our garage, and after struggling to find a proper fix, Waterstop came through. The team was professional and reliable, with special mention to Brandon, who kept us updated throughout the entire project and made the whole process easier. The quality of work was excellent. Highly recommend!
Warwick Absolon profile picture
Warwick Absolon
10:28 30 Mar 25
A great solution to a wet problem. Have used these guys a couple of times and great resolutions each time.
Richard Gill profile picture
Richard Gill
06:45 26 Mar 25
Mick has been fantastic with the work he had done in the hospital. Always professional, and informative, he worked well with my team to achieve a perfect result in a challenging environment
I would highly recommend Mick.
Thanks Mick you're the best 👌
Courtney Bignell profile picture
Courtney Bignell
02:09 26 Mar 25
Dudley worked efficiently with excellent communication. We will be recommending WaterStop Solutions in future!
Matt B profile picture
Matt B
00:40 26 Mar 25
Dudley and Anthony did a great job repairing and re-tiling our leaking balcony over a bedroom. Dudley and the team at Waterstop were flexible and worked with us and our contractors to implement sound solutions to significant problems found with the slab when the old tiles came up so that a robust waterproof solution could be put in place.
Exceptional service from Waterstop Solutions!

I was dealing with concrete dusting and high moisture issues in my garage and initially considered solutions recommended by others. However, after reaching out to Waterstop Solutions, they quickly identified that some of those options could actually worsen the problem over time.

Their expertise and honest advice helped me choose a cost-effective, non-invasive treatment that worked perfectly. The team was professional, knowledgeable, and efficient, making the whole process seamless.

A big thanks to Josh and the team at Waterstop Solutions for their outstanding work! Highly recommend their services.

Frequently Asked Questions

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Why is joint sealing important?

It allows slabs to expand and contract while helping protect against water and debris entering the joint. This reduces the likelihood of joint edge deterioration and related maintenance costs.

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What sealants do you use?

We use high-performance polyurethane, silicone, polysulphide, semi-rigid polyurea, and epoxy fillers. The right choice depends on the slab’s movement requirements, loading, and environmental conditions.

faq3-icon

How often should joints be resealed?

This depends on usage, exposure, and sealant type. External joints may need resealing every 3–6 years, while internal industrial joints may last longer but should be inspected annually.

faq4-icon

Do you repair damaged joint edges?

Yes — if joint edges (arrises) are damaged, we can saw-cut and rebuild them before resealing to ensure the new sealant performs as intended.