Factory Cleaning Services Across Ireland

Professional Factory Cleaning in Ireland

Factory cleaning is a specialist discipline that demands far more than a mop and bucket. Production environments accumulate oil, grease, chemical residues, food waste, metal swarf, dust, and industrial debris that standard cleaning methods cannot address. The equipment is larger, the compliance requirements are stricter, and the consequences of inadequate cleaning range from regulatory enforcement to production contamination.

Optus Glean provides factory cleaning services to food processing plants, manufacturing facilities, engineering workshops, pharmaceutical production sites, and assembly operations across all 26 counties of Ireland. We deploy industrial ride-on scrubber-dryers, walk-behind scrubbers, hot water pressure washers, HEPA-filtered extraction systems, and specialist degreasing equipment. Every operative holds Safe Pass certification, COSHH training, and receives site-specific induction covering your facility layout, hazardous areas, emergency procedures, and lockout/tagout protocols.

We understand that factories operate on tight production schedules where every hour of downtime costs money. That is why we schedule factory cleaning around your production cycles — during night shifts, weekends, shift changeovers, bank holidays, and planned shutdowns — to deliver a clean, compliant facility without losing a single hour of production.

What Factory Cleaning Involves

A professional factory cleaning service covers every area of the facility, not just the production floor. The scope depends on the sector, the facility layout, and the level of soiling, but a comprehensive factory clean typically includes:

• Production floors — degreasing, scrubbing with ride-on machines, and drying in a single pass
• Machinery surrounds — cleaning equipment bases, guards, and the floor areas around fixed machinery
• Assembly lines and work stations — wiping down surfaces, removing debris, and cleaning tool storage areas
• Storage and racking areas — dust removal, floor cleaning between racking runs, and shelf wiping
• Loading bays and dock areas — pressure washing, degreasing, and debris removal
• Canteens and break rooms — deep cleaning of kitchen equipment, surfaces, floors, and seating areas
• Welfare facilities — toilets, showers, changing rooms, and locker areas
• Offices and reception areas — standard office cleaning within the factory complex
• External yards and car parks — sweeping, litter picking, and pressure washing
• High-level structures — roof trusses, lighting, cable trays, ventilation ducting, and overhead pipework

The scope is documented in a site-specific method statement and risk assessment before any work begins. Nothing is cleaned without a plan, and nothing is missed because the plan covers every area.

Food Processing Factory Cleaning

Food processing factories operate under strict HACCP (Hazard Analysis and Critical Control Points) requirements that make cleaning a critical control point in the food safety chain. A contamination event caused by inadequate cleaning can result in product recalls costing hundreds of thousands of euro, enforcement action from the Food Safety Authority of Ireland (FSAI), and reputational damage that takes years to recover from.

Optus Glean provides specialist food factory cleaning using food-safe, HACCP-approved chemicals and sanitisers. Our food processing cleaning covers:

• Production line cleaning including conveyor belts, filleting areas, and processing equipment (external surfaces)
• Cold rooms, blast freezers, and chilled storage areas
• Dry stores and ingredient storage
• Packing and despatch areas
• Floor channel and drain cleaning and sanitisation
• Colour-coded cleaning systems to prevent cross-contamination between raw and cooked zones
• Allergen management protocols for facilities handling multiple allergens
• Environmental monitoring swab support

Every food factory clean is fully documented with chemical batch numbers, dilution rates, contact times, and operative signatures recorded. This documentation supports your HACCP plan and is available for FSAI, BRCGS, or customer audit review at any time.

Our food processing teams are trained in HACCP awareness, allergen management, clean-in-place (CIP) support procedures, and the specific protocols of your facility. For more detail on food sector cleaning, see our dedicated food processing cleaning page.

Manufacturing Plant Cleaning

Manufacturing facilities — from light assembly to heavy engineering — accumulate oil, grease, metal swarf, cutting fluid residue, coolant overspray, and general industrial debris. The production floor becomes contaminated through normal operations, and without regular professional cleaning, slip hazards develop, machinery performance degrades, and the working environment deteriorates.

Our manufacturing plant cleaning service addresses:

• Production floor degreasing — alkaline degreasers for mineral oil and petroleum-based contamination, enzyme-based cleaners for organic residues
• CNC machine and work station cleaning — external surfaces, guards, and surrounding floor areas
• Swarf and waste metal removal — collection and disposal of metal turnings, offcuts, and grinding dust
• Oil interceptor and drain cleaning — preventing blockages and ensuring environmental compliance
• Overhead structure cleaning — removing accumulated dust from roof steelwork, lighting, and ventilation that would otherwise fall onto products and machinery
• Warehouse and storage area maintenance — keeping raw material and finished goods storage areas clean and organised

We understand that manufacturing operates to tight production schedules. Our teams are trained to work safely around operational machinery and to coordinate with your production supervisors to minimise downtime. For facilities running 24/7, we deploy teams during shift changeovers or quieter production windows.

Pharmaceutical and Cleanroom-Adjacent Cleaning

Pharmaceutical manufacturing demands the highest standards of environmental cleanliness. While ISO-classified cleanroom maintenance requires specialist cleanroom operators with validated protocols, the surrounding facility — which accounts for 70% to 80% of the total floor area — requires professional industrial cleaning to prevent contamination migrating into controlled environments.

For pharmaceutical factory clients, Optus Glean provides comprehensive cleaning of warehousing and goods-in areas, corridors and connecting walkways, changing rooms and gowning areas, welfare facilities, administrative offices, loading docks and external areas, and waste storage and compound areas. We also offer enhanced documentation including cleaning validation records, batch traceability for all cleaning products, and compliance with your site's quality management system (QMS) requirements.

For full details on pharmaceutical facility cleaning, see our dedicated pharmaceutical cleaning page.

Production Floor Cleaning

The production floor is the heart of any factory, and it takes the heaviest punishment. Forklift traffic, foot traffic, spillages, oil drips from machinery, product residue, and general debris accumulate continuously. A production floor that is not cleaned regularly becomes a safety hazard, a compliance risk, and a drag on operational efficiency.

Optus Glean cleans production floors using industrial ride-on scrubber-dryers that scrub, degrease, and dry the floor in a single pass. Our ride-on machines cover 3,000 to 5,000 square metres per hour, meaning a 10,000m² production floor can be cleaned in 2 to 3 hours. For narrower areas around machinery, we use walk-behind scrubbers that deliver the same cleaning action in a more manoeuvrable format.

Production floor cleaning frequency depends on the sector and soiling level. Food processing floors may need daily or per-shift cleaning. General manufacturing floors are typically cleaned weekly or fortnightly. Heavy engineering floors with significant oil contamination may need twice-weekly degreasing. We work with your production team to establish the optimal frequency and schedule that maintains compliance without disrupting output.

Loading Bay and Yard Cleaning

Loading bays and external yards are the most exposed areas of any factory. They accumulate diesel and oil drips from delivery vehicles, food waste from rejected deliveries, packaging debris, rainwater contamination, and general dirt tracked in from public roads. Because loading bays are where products leave your facility, their cleanliness reflects directly on your operation.

We clean loading bays using hot water pressure washers operating at up to 250 bar, which effectively remove oil, grease, and food residues that cold water simply moves around. External yards are swept, litter-picked, and pressure washed on a schedule that keeps them presentable and safe. Drain covers and channels are cleared to prevent flooding during heavy rain.

Welfare Facility Cleaning

Factory welfare facilities — canteens, toilets, showers, changing rooms, and rest areas — require daily cleaning to maintain hygiene standards and comply with the Safety, Health and Welfare at Work (General Application) Regulations 2007. In food processing environments, welfare facility cleanliness is directly linked to food safety because contamination can transfer from welfare areas to production zones via personnel.

Our welfare facility cleaning covers deep cleaning of all sanitary ware, floor mopping and disinfection, surface wiping and sanitisation, consumable replenishment (soap, paper towels, toilet rolls), kitchen and canteen cleaning, locker and changing area maintenance, and waste removal and bin cleaning. For factories on ongoing contracts, welfare facilities are cleaned daily as part of the standard service.

Night Shift and Weekend Factory Cleaning

Most factory cleaning is scheduled outside production hours to avoid disruption. Optus Glean operates 24 hours a day, 7 days a week, 365 days a year. There is no premium charge for unsocial hours — our standard rates apply whether we clean at 2pm on a Tuesday or 2am on a Sunday.

Common scheduling patterns include:

• Night shift cleaning (6pm – 6am) — production floors scrubbed and ready for the morning shift
• Weekend deep cleans — comprehensive facility cleaning during Saturday/Sunday shutdowns
• Shift changeover cleans — rapid floor scrub between shifts in 24/7 operations
• Bank holiday deep cleans — using holiday shutdowns for thorough cleaning
• Annual shutdown cleans — full factory deep clean during planned maintenance windows

We plan every scheduled clean weeks in advance with your operations and maintenance teams. For annual shutdown cleans, we coordinate with maintenance engineers, electrical contractors, and equipment installers to ensure cleaning does not conflict with other shutdown activities and the facility is returned to production-ready standard on time.

Factory Cleaning Pricing in Ireland

Factory cleaning is priced based on facility size, sector requirements, soiling level, equipment needed, and frequency. Below are indicative pricing ranges for 2026.

All pricing is exclusive of VAT at 13.5%. Volume and contract discounts apply to regular service agreements. Optus Glean provides fixed-price quotations after a free site assessment — there are no hidden charges.

Why Choose Optus Glean for Factory Cleaning

Choosing a factory cleaning provider is a decision that affects production quality, staff safety, regulatory compliance, and your reputation with customers and auditors. Here is what sets Optus Glean apart:

• Industrial equipment — ride-on scrubbers, walk-behind machines, hot water pressure washers, and HEPA extraction systems. We do not clean factories with domestic equipment.
• Sector knowledge — our teams understand HACCP, FSAI, BRCGS, and the operational realities of food, pharmaceutical, and manufacturing environments
• 24/7 availability — night shifts, weekends, bank holidays, and shutdown periods at standard rates
• Full documentation — RAMS, COSHH assessments, cleaning records, and compliance documentation available on request
• Insurance cover — €6.5M public liability and €13M employer's liability
• Garda vetted staff — all operatives are Garda vetted, Safe Pass certified, and site-inducted before first access
• Nationwide coverage — we serve factories in all 26 counties from our base in Co. Monaghan

Industries We Serve

Our factory cleaning teams have experience in:

• Food processing and food manufacturing (meat, dairy, bakery, prepared foods, beverages)
• Pharmaceutical and life sciences
• General manufacturing and engineering
• Electronics and technology manufacturing
• Plastics and packaging production
• Automotive and vehicle manufacturing
• Textile and garment manufacturing
• Chemical manufacturing (non-cleanroom areas)
• Print and packaging facilities
• Warehousing and distribution centres