Can you handle a portfolio of properties?

Yes. Isabella Marfé is your first point of contact for work orders, onboarding and account set-up, and William leads the Commercial Division. One account, one contact, and written reports and photos on every job.

Which areas do you cover for commercial work?

All of Sydney. Our records show commercial jobs in 211 suburbs since 2019, most of them across the Eastern Suburbs , the City and Inner East and the North Shore .

Do you handle after-hours emergencies for buildings?

Yes. 24/7, 365 days. $0 call-out Monday to Friday, 7:00am to 5:00pm. Outside those hours (before 7:00am, after 5:00pm, weekends and public holidays) an emergency call-out fee of $199 to $399 applies. The job price is the same any time.

Are you licensed and insured for commercial work?

Yes. NSW Contractor Licence 285594C , $20 million public liability, Cm3 prequalified, a member of Strata Community Association (NSW) , and a lifetime labour warranty on every job.

How quickly do you respond to commercial work orders?

We respond to work orders and quote requests within 30 minutes, acknowledge every order in writing, and answer emergencies 24/7.

Commercial Plumbing Sydney

Q: Do you work to purchase orders / work orders?

Yes. Email work orders to commercial@proximityplumbing.com.au or upload them through SMATA. We acknowledge every order in writing, confirm access and attendance, and quote where required. Every job is documented and photographed, with warranty certificates on request.

Our commercial division looks after strata buildings, real estate portfolios, schools and businesses across Sydney. 5,183 commercial jobs since 2019, most of it from clients who keep coming back.

$0 CALLOUT FEE | FREE QUOTES | SAME DAY SERVICE

Overall Rating

4.9

(2,800+)

Brightest & Best Business Awards: Winner 2019, Winner 2024, Winner 2025, People's Choice 2025, Finalist 2023

NOW SERVICING NORTH SYDNEY

WE ARE AVAILABLE

CLAIM YOUR 30-MINUTE RESPONSE

35+ Years of Combined Experience
Yes, a Real Plumber Reads These Messages Too
The Kettle Is Always On at Head Office
$0 Call Out Fees
Every Job Photographed, Every Price Upfront
We Answer the Phone. Revolutionary, We Know.
Trusted by 15,000+ Sydney Families
No Call Centres. You Get a Human in Sydney
Your Neighbours Probably Have Our Fridge Magnet
Onsite in 30 Minutes Guaranteed
Boots Off at the Door. Every Single Time.
2,800+ Google Reviews and Counting
In the community For the community

35+ Years of Combined Experience
Yes, a Real Plumber Reads These Messages Too
The Kettle Is Always On at Head Office
$0 Call Out Fees
Every Job Photographed, Every Price Upfront
We Answer the Phone. Revolutionary, We Know.
Trusted by 15,000+ Sydney Families
No Call Centres. You Get a Human in Sydney
Your Neighbours Probably Have Our Fridge Magnet
Onsite in 30 Minutes Guaranteed
Boots Off at the Door. Every Single Time.
2,800+ Google Reviews and Counting
In the community For the community

35+ Years of Combined Experience
Yes, a Real Plumber Reads These Messages Too
The Kettle Is Always On at Head Office
$0 Call Out Fees
Every Job Photographed, Every Price Upfront
We Answer the Phone. Revolutionary, We Know.
Trusted by 15,000+ Sydney Families
No Call Centres. You Get a Human in Sydney
Your Neighbours Probably Have Our Fridge Magnet
Onsite in 30 Minutes Guaranteed
Boots Off at the Door. Every Single Time.
2,800+ Google Reviews and Counting
In the community For the community

35+ Years of Combined Experience
Yes, a Real Plumber Reads These Messages Too
The Kettle Is Always On at Head Office
$0 Call Out Fees
Every Job Photographed, Every Price Upfront
We Answer the Phone. Revolutionary, We Know.
Trusted by 15,000+ Sydney Families
No Call Centres. You Get a Human in Sydney
Your Neighbours Probably Have Our Fridge Magnet
Onsite in 30 Minutes Guaranteed
Boots Off at the Door. Every Single Time.
2,800+ Google Reviews and Counting
In the community For the community

35+ Years of Combined Experience
Yes, a Real Plumber Reads These Messages Too
The Kettle Is Always On at Head Office
$0 Call Out Fees
Every Job Photographed, Every Price Upfront
We Answer the Phone. Revolutionary, We Know.
Trusted by 15,000+ Sydney Families
No Call Centres. You Get a Human in Sydney
Your Neighbours Probably Have Our Fridge Magnet
Onsite in 30 Minutes Guaranteed
Boots Off at the Door. Every Single Time.
2,800+ Google Reviews and Counting
In the community For the community

35+ Years of Combined Experience
Yes, a Real Plumber Reads These Messages Too
The Kettle Is Always On at Head Office
$0 Call Out Fees
Every Job Photographed, Every Price Upfront
We Answer the Phone. Revolutionary, We Know.
Trusted by 15,000+ Sydney Families
No Call Centres. You Get a Human in Sydney
Your Neighbours Probably Have Our Fridge Magnet
Onsite in 30 Minutes Guaranteed
Boots Off at the Door. Every Single Time.
2,800+ Google Reviews and Counting
In the community For the community

35+ Years of Combined Experience
Yes, a Real Plumber Reads These Messages Too
The Kettle Is Always On at Head Office
$0 Call Out Fees
Every Job Photographed, Every Price Upfront
We Answer the Phone. Revolutionary, We Know.
Trusted by 15,000+ Sydney Families
No Call Centres. You Get a Human in Sydney
Your Neighbours Probably Have Our Fridge Magnet
Onsite in 30 Minutes Guaranteed
Boots Off at the Door. Every Single Time.
2,800+ Google Reviews and Counting
In the community For the community

By William and Emily Demirdonder, Directors · Last updated 18 October 2026

THE SHORT ANSWER

In short

Proximity Plumbing’s commercial division looks after strata buildings, real estate portfolios, schools, hospitality venues and businesses across Sydney: 5,183 commercial jobs since 2019, one accountable team, compliant paperwork and a lifetime labour warranty on every job.

Licensed NSW 285594C

SCA NSW member

$20M public liability

Cm3 prequalified

Work orders by email or SMATA

Lifetime labour warranty

COMMERCIAL DIVISION

The plumber property managers keep calling back

Strata managers, real estate agencies, schools and businesses have trusted us with 5,183 jobs since 2019. Most of that work comes from clients who’ve booked us before.

5,183

commercial jobs since 2019

1,400+

commercial clients

71%

of the work from returning clients

211

Sydney suburbs with commercial work

Commercial jobs by client

Strata buildings2,523
Real estate agencies1,530
Commercial and retail803
Schools158

Why they stay

31 clients have used us for five years or more.

7 clients have booked us every single year since 2020.

7 clients have each sent us more than 100 jobs.

Richardson & Wrench Double Bay has sent us 500+ jobs across 6+ years.

From our job records (ServiceM8 and ServiceTitan), August 2019 to October 2026. Completed jobs only.

WHO WE LOOK AFTER

One commercial team for every kind of property

Strata Managers

Common property, shared stacks and access coordinated with owners and tenants.

2,523 jobs since 2019

See how we help

Real Estate & Property Managers

Work orders for tenanted properties, with photos and reports for your landlords.

1,530 jobs since 2019

See how we help

Facilities & Building Managers

Planned maintenance and fast response across the buildings you run.

See how we help

Commercial Properties

Offices, shops and retail, fixed without shutting you down.

803 jobs since 2019

See how we help

Schools

Work timed around the school day, with the paperwork schools need.

158 jobs since 2019

See how we help

Hospitality

Restaurants, cafés, pubs and hotels, kept trading.

See how we help

Builders

Plumbing for renovations and new work, on your schedule.

See how we help

Plumbing problem at home? See how we help homeowners.

OUR CLIENTS

Our top 20 commercial clients

The 20 commercial clients who have trusted us with the most work, and how long they’ve been with us. Every one of them booked us again in 2025 or 2026.

#	Client	Sector	Jobs completed	With us for
1	Richardson & Wrench Double Bay	Real estate	500+	6+ years
2	Bright & Duggan	Strata management	200+	5+ years
3	Body Corporate Services (BCS)	Strata management	100+	6+ years
4	Strata Republic	Strata management	100+	6+ years
5	Strata Choice	Strata management	100+	6+ years
6	Moshav Realty	Real estate	100+	7+ years
7	Kincoppal-Rose Bay School	School	100+	4+ years
8	O'Neill Strata Management	Strata management	50+	6+ years
9	Mansour Property	Real estate	50+	5+ years
10	Alldis & Cox	Commercial	50+	6+ years
11	Clisdells Strata Management	Strata management	25+	4+ years
12	Strata Plus	Strata management	25+	6+ years
13	Jamesons Strata Management	Strata management	25+	4+ years
14	Waratah Strata Management	Strata management	25+	3+ years
15	Whelan Property Group	Real estate	25+	6+ years
16	Rivareno Gelato	Hospitality	25+	6+ years
17	London Hotel	Hospitality	25+	5+ years
18	Noble Strata	Strata management	25+	6+ years
19	Absolute Strata Management	Strata management	25+	5+ years
20	Common Ground Strata Management	Strata management	25+	5+ years

From our job records (ServiceM8 and ServiceTitan), August 2019 to October 2026. Completed jobs only.

Our relationships

Trusted by Sydney businesses

Trusted by strata managers, schools, childcare centres, hotels and local businesses across Sydney.

WHERE THE WORK IS

Commercial work across Sydney

Commercial jobs by region

Eastern Suburbs3,577
City & Inner East606
Lower North Shore233
Upper North Shore80
St George25
Inner West16
Sutherland Shire11
Other Sydney suburbs535

Busiest suburbs

Rose Bay384
Woollahra359
Vaucluse319
Double Bay284
Bellevue Hill260
Bondi255
Paddington227
Darling Point200

From our job records (ServiceM8 and ServiceTitan), August 2019 to October 2026. Completed jobs only.

A growing commercial division

William leads the Commercial Division, with Isabella Marfé as your first point of contact for work orders, onboarding and account set-up. We now service North Sydney as well as the East, and every new building joins the same system: one account, one contact, and written reports and photos on every job.

Send us a work order

Email work orders to commercial@proximityplumbing.com.au or upload them through SMATA. We acknowledge every order in writing, confirm access and attendance, and quote where required.

HOW IT WORKS

How engagement works

Intro call

Scope, response SLAs and paperwork agreed

Onboarding

Properties, contacts and access noted once

Business as usual

Priority response, one accountable contact

Reporting

Invoices and compliance docs, your way

YOUR COMMERCIAL TEAM

Who looks after your account

One team runs the commercial division, so you always know who to call.

William Demirdonder

Director, leads the Commercial Division

View profile

Isabella Marfé

Business Development Manager, your first point of contact

View profile

Florence Pinat

Commercial & Schools Coordinator

View profile

Rose Navarro

Strata Coordinator

View profile

Peter Mahony

Service Manager

View profile

CREDENTIALS

Licensed, insured and accountable

NSW Contractor Licence 285594C

Issued by Building Commission NSW. See our licences

$20 million public liability

Zurich Australian Insurance Limited

Lifetime labour warranty

On every job we complete

Cm3 prequalified

The compliance check strata managers use

Best Plumber 2019, 2024 and 2025

Brightest & Best Business Awards

SCA NSW member

Strata Community Association (NSW)

Copies of our licence, certificates of currency and Cm3 documents are available on request for tenders and onboarding.

QUESTIONS

Commercial plumbing questions

COMMERCIAL DIVISION

Let’s look after your buildings

Call the commercial team or email a work order. One account, one contact, and a fixed price before any work starts.

Call 0420 102 394 Book online

Licensed NSW 285594C

$20M public liability

Cm3 prequalified

Lifetime labour warranty