A close up shot of a professional waterproofer doing his work with the proper tools.
A close up shot of a professional waterproofer doing his work with the proper tools.

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4.2

Great rating - 4.2/5 (11114+ reviews)

Get help from waterproofing contractors in NSW

  • Roof waterproofing
  • Bathroom waterproofing
  • Wall waterproofing
  • Tile and floor waterproofing
  • Balcony waterproofing
  • … or anything else
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Best rated waterproofing contractors near me

Recent Waterproofing reviews in NSW

Great bloke

Waterproofing fix on leaking shower

$1,600

Michael knows his stuff. Will recommend

Outdoor Wall Waterproofing+Fixing ground gutter

$500

Adam is a fantastic communicator and incredible efficient. He is punctual, true to his word and an expert at what he does. He’s also very trustworthy and honest. I had major leaking issues in my shower which affected the adjoining wall and he pulled back the tiles, removed all cement and waterproofed the area, added original tiles and grouted the area as well as waterproofing the walls of the shower with spray.

Waterproofing

$100

A job well done and I am very pleased with the finished job

Waterproof a shower

$150

Adam is a genuine superstar! He not only diagnosed the issue of my problem but understood exactly my situation and worked around to find the best solution. Expert in his field and would highly recommend. Thanks Adam!

Waterproof Test and Fix Shower Leak

$139

Amazing guys would highly recommend for any repairs!

Waterproofing

$500

Average reviews for Waterproofing Services in NSW

based on 29 reviews

4.93

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Suggested reads about Waterproofing

Recent Waterproofing tasks in NSW

Seal cracks in basement carpark and waterproof a car wash bay

$100

Rockdale NSW 2216, Australia

9th Jan 2026

Hello seeking a licensed tradesmen to perform some work on this complex the work that needs to be done is as follows - Basement to fix all pipe penetrations are sealed, waterproofed, and bunded to prevent discharge into cracks or voids. - cracks are to be sealed to protect them from water intrusion. Product: Sikadur -20 Crack Seal or similar. cracks are to be sealed to protect them from water intrusion. Product: Sikadur -20 Crack Seal or similar. wash bay is to be sealed or waterproof and bunded so that water discharge does not enter the slab cracks or voids. Must be licensed, must provide a summary of the scope of works performed upon completion and photos

General help for waterproof

$300

Sydney NSW, Australia

9th Jan 2026

Waterproof help in circular quay

Balcony waterproof fix

$10

Ermington, New South Wales

8th Jan 2026

I have a balcony that has compromised waterproofing. During periods of heavy rain, water ingresses across various spots and drips onto my lower floor ceiling panels which have resulted in damage over time. The job, as I understand, will require demolishing and removal of existing tiles, grout, screed and any existing waterproofing. The fibre cement floor boards should remain intact. The job will then require multi layer application of new waterproofing and flood testing before new screed, levelling and new tiles are to be installed. Preference is to use epoxy grout and request this be provided as an option vs standard grout. Floor space for repair is approximately 13sqm and is located on the 2nd floor with access through the house or via the driveway. Please feel free to get in touch with me to come and do an inspection to provide a more accurate quote.

Bathroom waterproofing

$800

Aberdeen NSW, Australia

6th Jan 2026

Waterproofing a bathroom renovation are is 2.9x1.9 up walls to 2.4

Waterproofing bathroom

$1,000

Coffs Harbour NSW, Australia

6th Jan 2026

Waterproofing of bathroom and WC for open plan bathroom- room is approx 2.6 length x2.2width and height 2.4metres Will need certificate as well. Photo is bathroom as is and second photo is inspo pic for layout

Help with waterproof

$300

Sydney NSW, Australia

5th Jan 2026

Help with waterproof task on Friday - View all the details of this offer: https://www.airtasker.com/offers/01KE5RNA6PTYNTZMZTE8PXWCYF

Excellent highly recommended

Ardex waterproofing

$10

Bass Hill NSW, Australia

30th Dec 2025

I need someone that has ardex 300 waterproofing material including the 155 drum to waterproof 1 bathroom, 1 laundry and 1 small ensuite bathroom. Total 3. This will be the first coat before we screed the floor and then later on will be another coat.

Waterproofing and Grout

$300

Leichhardt NSW 2040, Australia

29th Dec 2025

The water was leaking from the upper level bathroom when taking showers

Waterproofing in bathroom shower has failed. Need this rectified.

$400

Acacia Gardens NSW, Australia

28th Dec 2025

Waterproofing in the main shower has failed and is causing issues. We’re looking for an experienced professional to inspect the shower and advise on the best solution. We’re open to different options, including: • Regrouting and minor remedial works • Redoing waterproofing in the shower only • Full bathroom waterproofing / renovation if required We’d like someone to come on-site, assess the situation, and discuss the most practical and cost-effective solution. Please reach out if you’re available to have a look and provide advice and a quote.

Waterproof labour

$300

Sydney NSW, Australia

23rd Dec 2025

Help with the waterproof inside building - View all the details of this offer: https://www.airtasker.com/offers/01KD56GZDYEMJE9D9XREAJZJXJ

Good work again very happy

Licensed waterproofer to waterproof my kitchen and laundry room

$1,000

Bondi NSW, Australia

21st Dec 2025

In need of someone who is licensed and can certify waterproofing (once completed) for my kitchen and laundry room. Roughly 10 square meters. Floor will have been recently leveled, there’s no kitchen cabinetry as everything has been removed. Thank you!

Great work waterproofing my kitchen and laundry! Very quick and quality work. Also very clean and considerate :) Would recommend!

Waterproofing for Dincel walls and slab joint.

$2,000

Ryde NSW, Australia

16th Dec 2025

44 meters lenght of walls

Licensed Waterproofer Needed for Bathroom

$600

Narrabeen NSW 2101, Australia

12th Dec 2025

I need a licensed waterproofer to apply 2-3 layers of waterproofing in my bathroom in a unit in January, I will need to provide insurance and waterproof license to my Strata. Bathroom is small 2x2. Waterproof needed on the floor and two walls. The area might also need screeding so if you have someone that would be great as an optional quote. Waterproof required to be applied super smooth.

Waterproofing bathroom

$300

Merrylands NSW, Australia

12th Dec 2025

I need to waterproof the bathroom floor and all the edging around as you can see the concrete corners and around the other bedroom or the edging inside the other concrete area of the bedroom needs to be all waterproof from the inside with all the concrete edges not the actual floor for the bedroom just the edging so all the edging around in the bathroom bathroom floor and then all the edging and once the weatherboard goes up inside for the bathroom to also do waterproofing on that as well

Waterproof a shower recess

$500

Toronto NSW, Australia

11th Dec 2025

Just need a licensed waterproofer to waterproof a shower recess, no additional screen just need the subfloor and walls done on Tuesday/Wednesday ready for tiling on Thursday. Bath and tiles will be removed and ready.

Waterproofing / tile repair around shower drain

$10

Bayview, New South Wales

7th Dec 2025

Shower drain is leaking. Have had plumber check water tightness of pipe work which is fine, as does water tightness of tile bed. The issue appears to be where the drain connects to the floor - likely a waterproofing issues.

Waterproof pond

$180

Wahroonga NSW, Australia

18th Nov 2025

Hello we have a pnd that must be leaking as it is only about a 3rd full. It is full of tadpoles that we would like to save. So, we would like someone to scoop the water and tadpoles out of the pond and into a tub. Then do whatever needs to be done to waterproof the pond. Thank you please see photos.

Waterproofing quote

$5

Springwood NSW, Australia

16th Sep 2025

I am a plumber and I need a waterproofer for one of my jobs in Springwood will need you to come quote • Waterproofing work in the downstairs bathroom and upstairs bathroom—there’s evidence of failure and water staining beneath both. • Laundry installation—we’re keen to get this sorted as part of the wet area works. • Drainage and subfloor moisture—there’s pooling and staining under the house, especially near the bathroom. We’d love your advice on surface water runoff and plumbing leaks. Don’t have photos I will also go up on Saturday aswell to have a look myself I have done a job for them before in a different house very nice people

Amazing work, very professional

Shower waterproofing

$200

Clovelly NSW, Australia

11th Aug 2025

I’ve had water leaking into carpet outside my ensuite which I believe is due to failed waterproofing in the shower recess

Adam came to look at my shower same day and did the work then and there. Cost a fair bit more than I was expecting but he seemed to be transparent about what needed doing and why so I went ahead

Seal Bathroom Leak – Apply Waterproof Sealant Between Tiles

$400

Blacktown NSW, Australia

16th Jul 2025

There is a water leak in my bathroom, when shower is on, water is entering behind the tiles. I need someone experienced in bathroom waterproofing to inspect the area and apply suitable waterproof sealant (silicone or any other effective material) to stop the leak and prevent water from seeping into the wall. Job Details: Locate and seal the leak in the bathroom Apply waterproof sealant/silicone to affected areas Prevent further water entry behind tiles Must bring your own tools and materials Requirements: Experience with bathroom sealing or waterproofing Reliable and neat workmanship Location: Blacktown, NSW Date/Time: I'm flexible – we can arrange a time that suits us both Budget: $400

Ian was exceptionally good. Completed the task perfectly and is very friendly.