A.C. Manufacturing

What A.C. Manufacturing does

A.C. Manufacturing Ltd. is a Dublin-based, custom HVAC ventilation ductwork manufacturer operating as a wholly-owned subsidiary of Swedish-listed Lindab International AB since December 2017. Founded in September 1999, the company produces spiral pipe, round and rectangular fittings, oval duct, fully welded duct, and the licensed Thor Duct and Thor Duct EVO fire-rated duct systems in galvanized steel, stainless steel, aluminium, and copper, alongside complementary services such as cut-to-length, pre-fabrication, and BIM/CAD-supported project planning. All manufacturing runs from a 45,000 sq. ft. facility in Dublin 11, employing approximately 30 specialized personnel, and the company is self-described as Ireland's market leader in ventilation ductwork manufacturing with over 25 years of operating history.

The company serves contractors, consultants, and developers building commercial and industrial projects across Ireland, with named enterprise customers spanning pharmaceuticals (Pfizer, Eli Lilly, Bristol-Myers Squibb), food and beverage (Coca-Cola, Danone, Kerry Foods), technology and data centres (Microsoft, Intel, Finland data centre), infrastructure (Dublin Airport, ESB, Aviva Stadium), retail (Primark, Cordis), and events (The Convention Centre Dublin, National Conference Centre). Revenue is generated via a quote-based, project-by-project direct sales motion with nationwide delivery throughout Ireland; pricing is not publicly disclosed and all engagements are bespoke to specification.

A.C. Manufacturing maintains ISO 9001, ISO 14001, and ISO 45001 certifications (valid through May 2027), CE-marked products, and Thor Duct fire-rated systems certified to EN 12101-7, EN13501-3, and EN13501-4 standards, qualifying the company for regulated-industry procurement. Recent strategic activity includes launch of Thor Duct EVO (a thinner, lighter fire-rated configuration), solar PV installations across three Dublin locations aligned with parent Lindab's decarbonization programme, and procurement of Energy Attribute Certificates via Becour and Borgund Hydropower. Distribution is single-country domestic via direct enterprise field sales; cross-border projects (Germany, Finland) are executed leveraging Lindab's 32-country footprint.

Name

A.C. Manufacturing

Legal name

A.C. Manufacturing Ltd.

Website

https://acmanufacturing.ie

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

11–50 employees

Short description

A.C. Manufacturing is Ireland's leading custom HVAC ventilation ductwork manufacturer, producing spiral, rectangular, oval, and fully welded ductwork plus licensed Thor Duct fire-rated systems from a 45,000 sq. ft. Dublin facility, serving contractors, consultants, and developers across commercial, industrial, pharmaceutical, and infrastructure projects.

Ownership category

akta.pro rank

Product category

HVAC Ductwork Manufacturing

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415)

SIC

Steam & Air-Conditioning Supply (4961), Heating Equipment, Except Electric & Warm Air Furnaces (3433)

akta.pro primary industry

Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG)

Keywords

• HVAC ductwork manufacturing
• Ventilation systems
• Fire-rated ductwork
• Sheet metal fabrication
• Spiral pipe ductwork

Headquarters

HQ city

Dublin

HQ country

Ireland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. HVAC Ductwork Manufacturing: Custom-manufactured ventilation ductwork including spiral pipes, round fittings, rectangular duct & fittings, oval ducts, fully welded duct. Products are tailored to precise project specifications for commercial and industrial building projects.
2. Fire-Rated Duct Systems: Licensed manufacturer of Thor Duct and Thor Duct EVO fire-rated duct systems for smoke extraction, kitchen extract, and fire ductwork applications meeting EN standards.
3. Associated Products: Associated HVAC products including strut channels, pipe clamps, threaded rods, nuts, washers, wedge anchors, and Rawlplug products sourced from trusted suppliers like Sikla, Knauf Insulation, Big Foot Systems, BTS, Alkegen, WUS, and Metsec.
4. Services: Pre-fabrication service, cut-to-length service, general sheet metal and steel fabrication, stainless steel canopies, attenuators, and custom dampers.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

A.C. Manufacturing is Ireland's leading HVAC ductwork manufacturer, producing custom-engineered ventilation ductwork including spiral pipes, round and rectangular fittings, oval ducts, and fully welded ducts in galvanised steel, stainless steel, aluminium, and copper. The company also manufactures licensed Thor Duct and Thor Duct EVO fire-rated duct systems compliant with EN 12101-7 and EN 13501 standards, and supplies associated HVAC products and general sheet metal fabrication services from its 45,000 sq. ft. Dublin facility.

Product overview

A.C. Manufacturing is a provider of HVAC ventilation ductwork and associated products, operating as part of the Lindab Group. Their core offering consists of custom-manufactured ductwork including spiral pipe, round and rectangular fittings, oval ducts, and fully welded ducts in various materials (galvanised steel, stainless steel, aluminium, copper). They offer fire-rated duct solutions through the Thor Duct brand (Smoke Extract, Kitchen Extract, and Fire Ductwork variants) and the newer Thor Duct Evo system for compact spaces. Associated products include Lindab Safe circular ducts with factory-installed gaskets, Knauf insulation, and Rawlplug concrete anchors. The company provides complementary services including cut-to-length, pre-fabrication, and BIM & CAD support. All products are manufactured at their 45,000 sq. ft. Dublin facility.

Differentiator

Problem solved

Functional benefit

Products and services

• Spiral Pipe Durable and efficient spiral pipes manufactured for HVAC ventilation applications, custom-sized to project specification.
• Round Fittings High-quality round fittings designed for seamless integration with ductwork systems in HVAC installations.
• Rectangular Duct & Fittings Rectangular ductwork and fittings available in galvanised steel, stainless steel, aluminium, and copper materials for HVAC systems.
• Oval Duct & Fittings Customizable oval ducts and fittings for specialized HVAC ventilation needs where space constraints require non-circular profiles.
• Fully Welded Duct Robust and versatile fully welded ducts manufactured in a range of materials for industrial applications requiring airtight performance.
• Thor Duct Smoke Extract Fire-rated smoke extract duct system complying with EN 12101-7:2001, classified EN13501-4, for single and multi-compartment vertical and horizontal smoke extraction at 1500 Pa.
• Thor Duct Kitchen Extract Fire-rated kitchen extract duct system designed to delay temperature rise to 180°C to prevent grease ignition, classified EN13501-3.
• Thor Duct Fire Ductwork Fire-rated ductwork providing Integrity (E) and Insulation (I) up to 120 minutes for pressurisation systems and compartmentation, classified EN13501-3.
• Thor Duct EVO Lighter, thinner fire-rated duct configuration using 30% less metal and 70% less insulation than standard systems, factory-wrapped with 25mm calcium silicate insulation, CE-marked, suitable for EI60-EI180 fire classification.
• Attenuators Noise control solutions for HVAC systems to reduce sound levels in ductwork runs.
• Custom Blastgate and Volume Control Dampers Tailored dampers to regulate airflow and pressure in ventilation systems.
• Stainless Steel Canopies Stainless steel canopy products for commercial and industrial applications.
• Lindab Safe Circular Air Ducts and Fittings Complete range of circular air duct systems with double factory-installed EPDM rubber gaskets, airtight, quick and easy to mount, Eurovent certified to tightness class D.
• Associated HVAC Products Supporting products including strut channel and fittings, threaded rod, nuts and washers, pipe clamps, T-head bolts, threaded pins, G clamps, and wedge anchors from trusted suppliers including Sikla, Knauf Insulation, Big Foot Systems, BTS, Alkegen, WUS, and Metsec.
• Rawlplug Concrete Anchors High-quality concrete screw anchors and wedge anchors supplied by Rawlplug Ireland Ltd., including R-LX-HF-ZP, R-DCL, and R-LX-I-ZP variants.
• Pre-fabrication Service Prefabrication of ductwork modules and bracketry for efficient on-site installation and cost savings.
• Cut-to-Length Service Competitive cutting service that maintains pre-galvanised coating integrity on cut ends, reducing waste and providing labour savings.
• General Sheet Metal and Steel Fabrication Comprehensive sheet metal and steel fabrication services for custom industrial needs.

Quantifiable outcome

• 40% reduction in workplace accidents (2020 vs prior year)
• +3 more outcomes

Named customers16 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

16 partnerships are on record, tiered core and minor.

• Lindab International ABcoreStrategic or Co-development Partner · 18 December 2017A.C. Manufacturing was acquired by Lindab International AB on December 18, 2017. Lindab is a leading European supplier of ventilation products and solutions established in 32 countries with approximately 5,100 employees. The acquisition combined strengths of both businesses to enhance customer offerings and project sales in the Irish market.
• Rawlplug Ireland Ltd.minorChannel Partner/ Reseller/ DistributorA.C. Manufacturing is a stockist of Rawlplug Ireland Ltd. products including R-DCL Lipped Wedge Anchor, R-LX-HF-ZP Zinc plated Hex with Flange Concrete Screw Anchor, and R-LX-I-ZP Zinc plated Internally Threaded Concrete Screw Anchor.
• Thor Duct (Lindab Group)coreOEM/ Whitelabel/ Licensing PartnerLicensed manufacturer of Thor Duct complete fire-rated duct system to comply with EN 12101-7:2001 smoke extraction standard. The license ensures rigorous factory production control (FPC) system compliance and highest quality standards.
• SiklaminorChannel Partner/ Reseller/ DistributorSupplier of strut channels and fittings for HVAC installation needs.
• Knauf InsulationminorChannel Partner/ Reseller/ DistributorSupplier of mineral wool products for duct insulation. All Knauf mineral wool products meet highest specifications and have demonstrated excellent performance in demanding projects including Passivhaus standard.
• Big Foot SystemsminorChannel Partner/ Reseller/ DistributorSupplier of mounting and support systems for HVAC installations.
• BTSminorChannel Partner/ Reseller/ DistributorSupplier of associated HVAC products and accessories.
• AlkegenminorChannel Partner/ Reseller/ DistributorSupplier of insulation and filtration products for HVAC applications.
• WUSminorChannel Partner/ Reseller/ DistributorSupplier of metal sections and profiles for HVAC installation support systems.
• MetsecminorChannel Partner/ Reseller/ DistributorSupplier of structural steel and metal products for construction applications.
• GEBHARDT|STAHLminorChannel Partner/ Reseller/ DistributorSupplier of flanges and accessories for ductwork systems.
• Certa IrelandminorStrategic or Co-development PartnerPartner in renewable energy initiative. Solar installation project at Dublin manufacturing facility was delivered in partnership with Certa Ireland as part of Lindab Ireland renewable energy programme.
• Alternative Energy IrelandminorStrategic or Co-development PartnerPartner in renewable energy initiative. Solar installation project was delivered in partnership with Alternative Energy Ireland helping Irish businesses adopt renewable energy solutions.
• WewiseminorStrategic or Co-development PartnerPartner in renewable energy initiative. Solar installation project delivered in partnership with Wewise supporting sustainable operations.
• BecourminorStrategic or Co-development PartnerPartner for Energy Attribute Certificates (EACs) supporting renewable electricity consumption. Becour ensures electricity used across operations is matched with verified renewable energy supplied to the grid, supporting Lindab's Scope 2 decarbonisation goals.
• Borgund Hydropower Plant (Østfold Energi)minorStrategic or Co-development PartnerRenewable energy source for Energy Attribute Certificates. Located in Lærdal, Norway, the facility generates more than 985 GWh of renewable electricity annually and supports environmental initiatives including river restoration and salmon habitat projects.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Lindab International AB: Swedish-listed parent and broader European ventilation/HVAC product group operating in 32 countries with ~5,100 employees. Directly comparable as a ductwork and air-distribution manufacturer; A.C. Manufacturing is its Irish subsidiary and uses Lindab-developed products (Thor Duct, Lindab Safe).
• Trox Group: German global leader in ventilation components and air-handling systems, including fire/smoke dampers and ductwork. Comparable as a direct competitor in commercial/industrial ventilation products, though at much larger scale and broader portfolio.
• Swegon Group: European supplier of ventilation, air-conditioning and indoor climate solutions, owned by Investment AB Latour. Comparable in commercial-building HVAC product portfolio and ducted-air distribution offering.
• Systemair AB: Swedish-listed HVAC equipment manufacturer with a pan-European footprint offering fans, air-handling units and ventilation systems. Direct competitor in commercial ventilation products and ducted-air distribution solutions.
• FläktGroup: European HVAC manufacturer (air-handling units, fans, ductwork) serving commercial, industrial and infrastructure markets. Directly comparable as a ductwork/air-distribution product competitor at multinational scale.

Regional players

• Caice Air Movement Ltd: UK manufacturer of ductwork, fans and acoustic products for ventilation systems. Comparable regional peer focused on commercial/industrial HVAC ductwork fabrication and supply.
• Ductform Ltd: UK-based ductwork manufacturer producing rectangular, circular and spiral ductwork plus associated products for HVAC contractors. Closely comparable as a regional ductwork manufacturer serving British/Irish building projects.
• Wescott Group: UK-based ductwork and ventilation product manufacturer supplying commercial construction projects. Comparable regional peer in custom HVAC ductwork manufacturing and supply for building contractors.

Others

• Rawlplug Ireland Ltd: Supplier of concrete anchors and fastening products that A.C. Manufacturing stocks and distributes (R-DCL, R-LX-HF-ZP, R-LX-I-ZP). Comparable as an associated-products distribution relationship rather than a ductwork competitor.

Direct peers

• Ruskin Air Management: Manufacturer of dampers, louvers and air-control products for HVAC systems, part of the Kingspan Group. Direct peer in ducted-air distribution accessories and airflow-control components.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ac-manufacturing

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about A.C. Manufacturing