
HVAC Ducting & Sheet Metal
GI and MS ductwork fabricated in our own facility — installed, tested and balanced to specification.
- Rectangular, spiral & round GI ducts
- Fittings, dampers, plenums & transitions
- Installation, testing & air balancing
HVAC · Piping · Steel Contractor in Karachi · Since 2015
HVAC ducting, thermal insulation, process piping, structural steel & PEB, AHU overhauling and allied civil works — for industrial plants that cannot afford a missed shutdown window.
Who we are
AA FABCON (Private) Limited is a Karachi-based mechanical contracting firm delivering HVAC, piping, steel and civil works for industrial clients. Incorporated in 2026, the company continues the operations of AA Engineering, which has been executing industrial site work since 2015.
Our own fabrication facility in Landhi means ducts, trays, steel and piping spools are built under our supervision — no dependence on outside workshops, and no surprises when material reaches site.
How we work
Services

GI and MS ductwork fabricated in our own facility — installed, tested and balanced to specification.

Rockwool, glass wool and PU insulation with aluminium or GI cladding for hot and chilled services.

MS, GI and stainless steel piping — fabrication, welding, erection, hydro testing and commissioning.

Fabrication and erection of structural steel, platforms, walkways and pre-engineered buildings.

Complete AHU overhaul, coil cleaning, filter and bearing replacement, and performance retrofit.

SS304 / SS316 fabrication for pharma, food and process plants — tanks, hoods, piping and fixtures.

Perforated, ladder and trunking-type cable trays in GI and MS, made to size in our workshop.

Foundations, plinths, trenching and allied civil works supporting mechanical installation.
Products

GI / MS perforated cable trays manufactured to required width, depth and gauge.

Complete tray runs with supports, hangers and accessories installed on site.

Square ceiling diffusers, linear grilles and return air grilles in aluminium or GI.

Spiral and round ducts with matching fittings for supply and exhaust systems.

Factory-fabricated rectangular ducts with flanged / TDC joints to SMACNA practice.

Rockwool, glass wool and PU sections with aluminium / GI cladding sheets.
Projects
2025 Multi-level platforms, stairs and handrails with process piping, flue gas ducting and fan connection for a boiler house.
2025 Fabrication and erection of access platforms and stairs, large-section flue gas ducting and GI cladding on the duct run.
2023 Steel structure, access staircase, safety railing and insulated ducting with cladding up to the stack.
Clients
Management & Team

Founded AA Engineering Service in 2015 and now leads AA FABCON. Responsible for client development, tendering, contract negotiation and overall project accountability.
Shop drawings, material take-offs, estimation and quality records. Coordinates between client specifications and what the shop floor builds.
30+ years on industrial sites across HVAC ducting, insulation & cladding and process piping. Sets workmanship standards and directs site crews.
Directly employed tradesmen
Every man on site carries a safety induction, EOBI registration and photo ID.
FAQ
Areas we serve: Landhi, Korangi Industrial Area, Port Qasim, SITE, North Karachi, Federal B Area, Hub and all of Karachi — plus projects across Sindh and Pakistan.
Our office and fabrication workshop are in Landhi, Karachi (Moinabad, Landhi Town). We work on industrial sites across Karachi, including Korangi, Landhi, Port Qasim, SITE and Hub.
HVAC ducting, thermal insulation and cladding, process and fire-fighting piping, structural steel and PEB sheds, AHU overhauling, stainless steel fabrication, cable tray manufacturing and allied civil works.
Yes. AA FABCON (Private) Limited is incorporated with SECP, registered with FBR for income and sales tax, and holds a PEC constructor licence.
Send your BOQ, drawings or scope through the contact form, WhatsApp or email. We can also visit your site for measurements.
Contact
Share the scope and we'll come back with a site visit or quotation.