JED Waterproofing

Waterproofing done properly.
The first time.

We are a small, licensed Sydney crew that has spent 17+ years fixing the same handful of wet areas — showers, balconies, bathrooms and splashback junctions — and we would rather diagnose a leak properly than sell a bigger job.

Our story

We got tired of watching good jobs get patched over.

JED Waterproofing started with one van, one thermal camera and a simple frustration: too many Sydney waterproofing jobs were being "fixed" by adding more silicone on top of a membrane that had already failed. It looks tidy, it costs less, and it fails again within two winters.

So we built the company around the opposite principle — strip it back properly, diagnose where the water is actually coming from, rebuild the envelope to the Australian Standard, and show you the photographs. That approach is slower on day one and much faster for the next ten years.

Today we are a licensed and insured crew working across Sydney and NSW on a mostly referral-driven schedule. Every job is flood-tested, photographed and signed off against a written 10-year warranty before we pack up.

Established
2009
Licence
Builder’s Licence No. 000000C
Standard
AS 3740
Waterproof membrane being rolled onto a wet area slab

4.9/5

from 486 reviews

Why JED

The difference is in
what we do not cut corners on.

Anyone can put silicone on a joint. Being the trades you keep for the next twenty years is about diagnosis, preparation, product selection and turning up when we said we would. That is where we put our energy.

Licensed & Fully Insured

Every job is covered by our public liability and workmanship policies, with a written certificate issued on completion for your records.

Same-Day Emergency Response

Active leaks do not wait for business hours. Our on-call crew covers Sydney 24 hours, seven days, including public holidays.

Fixed Upfront Pricing

Send photos and receive an itemised fixed quote within hours. No hourly surprises, no “while we’re here” extras.

10–15 Year Warranty

Our membrane systems carry a written structural warranty of up to 15 years. If it fails, we come back and make it right.

Clean, Considered Workmanship

Dust extraction, floor protection, daily clean-downs and a bathroom left spotless. No mess for you to deal with.

Photographic Documentation

Every stage captured and reported — valuable evidence for insurers, body corpora, builders and future purchasers.

How it works

Our waterproofing process in five clear steps.

No mystery, no surprise invoices. You know exactly what is happening, when, and what it costs — from the first phone call to the final warranty certificate.

01

Book & Assess

Call, message or send photos. We respond within the hour and confirm a fixed price before committing to a visit.

02

Diagnose Properly

On-site pressure, flood and moisture testing with thermal imaging to pinpoint the actual failure — no guesswork.

03

Strip & Prepare

Old sealant, grout and membrane removed, substrate repaired, primed and ready. Full protection and dust extraction.

04

Waterproof & Seal

Bond-breaker, primer, membrane coats, falls and flexible sealant applied to specification with correct joint profiles.

05

Test & Document

Flood test, photographic report, warranty certificate issued and the space handed back ready to use.

0yrs

Waterproofing experience

0+

Wet areas protected

0%

Leaks stopped first visit

0/5

Google rating

What you get

Every job includes the same
four things.

No tiers, no upsells, no optional extras. This is simply how a waterproofing job should be delivered.

Photo record

Every stage photographed — strip-out, substrate, membrane, seal — and handed over with your warranty.

Flood tested

We flood-test the finished area and show you the result before we leave the site.

Written warranty

A signed 10-year structural warranty, backed by a real local business.

Fixed price

One itemised quote before work starts. The price we quote is the price you pay.

Verified reviews

Sydney homeowners who
stopped worrying about water.

4.9

486 Google reviews

“Water was coming through into the lounge room ceiling. Two other companies wanted to rip out the whole shower. JED diagnosed it in an hour, showed me the thermal photos, and had it sealed by the following afternoon. Nothing has moved since. Total transparency the whole way through.”
S

Sarah Whitfield

Bathroom leak · Annandale

“Our strata committee had water pooling on the balcony and tracking into the unit below. JED handled the whole rectification, coordinated with the body corp, and left the deck better than it was originally. Communication was outstanding — a photo update every single day.”
M

Michael Tran

Balcony waterproofing · Marrickville

“We had been told by a builder we needed to re-plaster the whole wall. JED investigated properly, found the real cause was a blocked downpipe and no subfloor ventilation, and fixed it with a small amount of work. Saved us tens of thousands.”
P

Priya Raman

Rising damp · Parramatta

“Booking was easy, quote was fixed, and the tradie arrived exactly on time. The shower looks brand new and the epoxy grout has not a mark on it two years later. Genuinely the most professional job we have had done in the house.”
D

Daniel O’Connor

Shower re-seal · Chatswood

“We shopped around after one company quoted for a full renovation. JED proposed a strip and re-seal at a fraction of the price and provided a written warranty. Both bathrooms were done over two days, spotless afterwards, and usable within 24 hours each time.”
A

Andrea & Tom

Two bathrooms · Fairfield

“I manage fourteen properties and need trades that just turn up. JED has completed every job assigned to them on schedule, every invoice matches the quote, and the paperwork they send me would satisfy any insurer.”
J

James Okonkwo

Rental portfolio · Blacktown

Ready when you are

Get a fixed price before anyone touches a tool.

Send a few photos of the problem and we will come back with an itemised quote — usually within the hour, and with no obligation.

Free photo-based quote

Leaking shower? Water under the floor?
Send us a photo.

Tell us what you are seeing and we will come back with a fixed price and the earliest appointment we can offer. No obligation and no site visit needed to get a quote.

We reply within the hour during business hours. Your details are never shared or sold.

Call now Free quote