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SENG LEONG PROJECT is a leading steel fabricator offering innovative design, supply, fabrication and installation of a wide range of standard and custom-made structural steel works. We have been providing these services since our founding in 2001 and have established ourselves as industry experts. 

We strive for excellence through our commitment to quality and safety. As an ISO 9001:2015, ISO 45001:2018 and OSHAS certified company, we uphold the highest standards in the steel manufacturing industry. Our clients trust us to consistently meet and surpass their needs, while adhering to all applicable statutory and regulatory requirements. We take great pride in our achievements, which include being accredited as a fabricator of the highest S1 category from Singapore Structural Steel Society and achieving a bizSAFE Star level.

We believe in continuously improving our operations, and this includes the training and development of our employees. Our commitment to effective utilization of resources gives us the insight and expertise needed to promptly resolve installation and maintenance problems.


Partner with us for all of your steel manufacturing needs.



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Steel Fabrication Service

We specialize in steel fabrication services such as cutting, plate bending, rolling, drilling, etc using state-of-the-art equipment. Reduce waste and material costs with our optimized cutting techniques.

Contact us today for a free quote and discuss your steel fabrication needs

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Structural Steel Solutions

We are proud to be experts in structural steel fabrications and installations.


Our team has a proven track record of success in HDB lift-upgrading works, steel roof works, steel staircase work, etc. 

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Bespoked Construction Solutions

One-size-fits-all doesn't apply in steel works.

We partner with you, every step of the way, to understand your needs and craft the best steel solution to your satisfaction.

Fire-Rated Doors


Our Fire and Non-Fire-Rated Electro-Galvanised Steel Doors and Fire-Rated Galvanised Steel Bin Chute Doors are manufactured in-house at our factory at 4 Gul Street. The doors are meticulously constructed to meet stringent safety standards, offering reliability and durability. These doors are engineered to ensure optimal functionality while prioritising safety in residential, commercial, industrial and institutional spaces. When it comes to fire protection, there's no room for compromise.


Tested by TUV SUD PSB per SS 332:2018 and BS EN1634-1:2014 + A1:2018 standards up to a 4-hour fire rating, these doors offer unparalleled safety and security. With the ability to customise the door's height, width and glass options (vision panel), we can create a door that meets your needs while exceeding your expectations.

Civil Defence Shelters

Civil Defence Shelters

We are the approved supplier for Civil Defence Shelters for Household, Staircase or Storey Shelters, Stainless Steel Ventilator Sleeves, Rescue Hatch, etc.

Our expertise in steel fabrication ensures that our household, storey shelters and staircase shelters are built to withstand the toughest conditions. 


Household and Storey Shelter

There are two types of shelters, Household Shelter (HS) and Storey Shelter (SS) with specific locations and purposes. HS is located within a residential unit and serves the residents living in it, while SS is placed in common areas of a storey and serves the residents of that floor. Both shelters provide safety and protection in case of emergencies or disasters.


​Household Shelter Dimensions

  • Frame size: 900(W) x 2100(H) wall thick (mm)

  • Door size: 790(W) x 1990(H) x 50 thick


Opening Dimensions

For Storey Shelter only

Dimensions : 900(W) mm x 1900(H) mm

For Staircase Storey Shelter only

Dimensions : 900/950/1000 (W) mm or 1000(W) mm x 2055(H) mm


Mid-landing (Internal)

Dimensions : 1000(W) mm x 2055(H) mm.


Ventilator Sleeves

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Stainless Steel Ventilators for:

  • Household Shelter

  • Storey Shelter (Ventilator With Mesh)

  • Staircase Shelter



Household Shelter

Diameter 290mm x Wall thickness 250/275/300mm 


Storey / Staircase Shelter

Diameter 300mm x Wall thickness 250/275/300mm 


Rescue Hatch

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Rescue Hatch is an essential safety feature provided on every SS tower, except the top-most and bottom-most SS. The hatch is constructed with fire-rated, airtight sealed galvanized steel, ensuring maximum safety and durability. It is available on both floor and ceiling, providing easy access during emergencies.


Net Clear Opening shall be 700mm x 700mm

The access to the rescue hatch shall be by a ladder made of stainless steel or aluminium and shock-mounted to 12.5g in all directions to the SS wall with details and dimensions.

Rescue Hatch


We specialise in custom fabrication that is tailored to your exact needs. We have extensive experience in Structural Steel works in various sectors such as Commercial / Industrial, Community and Institutional settings. We have a proven track record of success in structural steel such as steel roof, taxi and bus stop shelters, steel staircase and covered linkways as well as other metal works such as metal handrails, air con ledges and other metal-works etc. 

Our team boasts years of experience in the field and meticulous craftsmanship, we ensure that each project is finished to the highest standard and to our client's satisfaction.

Here are some of our recent projects.



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Contact Us


34 Joo Koon Road Singapore 628986

6513 7931


4 Gul Street 3 Singapore 629263

Thank You

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