Sewer vent shafts for regional and council projects

SVSR is the sewer vent line specialist. We’ve worked with regional and council customers for over 25 years, and we have a deep industry knowledge and a can-do attitude. We project manage the design, fabrication, installation, removal and relocation of sewer vent shafts, vent cowls and odour filters across NSW and other states. We guarantee high quality… and full compliance.

Man checking the sewer vent

Why you need to monitor sewer vents

Sewer vent shafts play a crucial role in wastewater networks, by providing adequate ventilation. Many existing NSW council ventilation shafts are now in excess of 80 years old and present an urgent safety risk to people and property.

Older sewer vent shafts are generally constructed of reinforced concrete. When exposed to sewer gases, concrete ultimately degrades, exposing the reinforced steel bars, and making concrete vent shafts susceptible to lightning strikes or collapse.

“Odour and corrosion are almost always found together. Under typical sewer conditions, odorous gases chemically react to form acids, which cause corrosion of our valuable and critical pipes. If the problem persists, this leads to leaks and even complete collapse of the sewer system, with catastrophic consequences.” ~ Duncan Reynolds, SVSR R&D

SVSR provides full assessment and monitoring of your existing sewer network assets including vent shafts, vent cowls and odour filters. We make recommendations for public safety and long-term cost-effectiveness.

Our sewer vent shaft services

We fabricate our sewer vent shafts in high-grade stainless steel for durability and minimal ongoing maintenance. We can add rotating educt vent cowls, induct cowls or custom-designed cowls for added efficiency.

We specialise in:

  1. Removal, disposal and replacement of ageing and deteriorating sewer vent shafts for regional councils and water agencies
  2. Difficult vent shaft access e.g. residents’ backyards, work near roadways, overhead power lines and underground services
  3. Detailed design advice, odour/gas assessment and condition assessment of existing vent shafts, maintenance budget planning.

We design, fabricate and install sewer vent shafts, vent cowls and odour filters throughout NSW. We project manage every detail for a safe, on-time and successful sewer ventilation solutions.

Team discussing in an event

Managing community relations

Since the majority of NSW sewer vent shafts are located on private property and in residents’ front and backyards, our first priority is to communicate with property owners.

We liaise with all interested stakeholders, including neighbours, local councils, government organisations, developers and private businesses.

Where the work has a high impact on the wider community, we assign a site-specific Contractor Community Liaison Plan.

Regional and council sewer vent shaft designs

Post vent shafts on field

Post sewer vent shafts

Post sewer vent shafts are the most cost-effective solution for low to medium density catchment areas.

Available sizes are 150, 225 or 300mm in diameter with a maximum height of 9 metres.

Drawings Plan
EPS 700.07

Guy Wire Vent Shafts

Guy-wire sewer vent shafts

Our guy-wire sewer vent shafts are normally manufactured from 304 grade stainless steel (but can be manufactured from 316 grade) and available heights range from 14m to 18m.

Sydney Water Drawing Nos.
EPS 700.01
EPS 700.02
EPS 700.03
EPS 700.04
EPS 700.05
EPS 700.06

SEW-1408 / SCP 1003 Sewer Vent Shaft

Our SEW-1408 / SCP 1003 is a galvanised mild steel vent stack to meet Hunter Water requirements.

Drawings Plan
SEW 1408

Custom design vent shafts

Our skilled team is experienced in every aspect of sewer ventilation. We provide steel fabrication to specification, or modify existing drawings for customisedsewer vent shafts, vent cowls and odour filters. We have full CAD services in-house.

We work with you within your requirement to council or regional water authority compliance standards.

Contact us to discuss your council or regional project.

News & Projects

SVSR pioneers partnership with a leading research facility to improve sewer vent technology

SVSR pioneers a partnership with the new Advanced Manufacturing Research Facility based in Western Parkland City, Sydney.

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A guide to vent cowls

As leading vent shaft design, fabrication, installation and maintenance specialists, so much research and analysis is required to make informed decisions on vent cowls, the different options and where to use them. SVSR is an expert in the field and shares some insights and guidance on vent cowls in sewer network planning.

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SVSR sewer ventilation design services to future-proof infrastructure

As a leading provider of sewer vents, vent shaft cowls and odour filters for over 25 years, SVSR has a vast knowledge of industry standards and specific site demands for Sydney Water and regional and council projects. We are pleased therefore to now offer complete sewer ventilation design services, including bespoke design services for councils and utility and commercial clients.

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Enquiry for: Sewer Vent Design, Fabrication, Installation

Do you have project or construction drawings or plans?YesNo


29 Shepherd St, Liverpool
NSW 2170

02 8798 8788