Our Home County: Optus Glean Head Office in Glaslough
Monaghan is where Optus Glean is headquartered. Our registered office is at 26 Village Square, Castle Leslie Estate, Glaslough, Co. Monaghan, H18 XP59. Our operations management, senior team, and core administrative functions are all based here. This is not a brass-plate address — it is where we run the business from.
For Monaghan businesses, this means three concrete advantages that no competitor can match:
- Fastest response times — Every town in Monaghan is within 30 minutes of our head office. Emergency callouts, site inspections, and quality audits happen same-day, often within hours.
- Direct management access — Your contract is managed by the same people who run the company. Issues escalate directly to decision-makers, not through layers of regional management.
- Lowest mobilisation costs — No travel surcharges, no fuel premiums, no minimum distance fees. Monaghan clients get the most competitive contract pricing in our portfolio.
Commercial Cleaning Across County Monaghan
County Monaghan has a population of approximately 65,000 spread across three principal towns — Monaghan town, Carrickmacross, and Clones — and a network of smaller towns including Castleblayney, Ballybay, Emyvale, and Glaslough. Despite its relatively small population, Monaghan punches well above its weight economically, particularly in food processing, manufacturing, and cross-border commerce.
The county sits on the Northern Ireland border, with Armagh, Tyrone, and Fermanagh to the north. This border position means many Monaghan businesses operate cross-border supply chains, logistics, and distribution. As a locally headquartered company, we understand this dynamic intimately.
Food Processing: Monaghan’s Economic Engine
Monaghan has one of the most concentrated food processing sectors in Ireland relative to its population. The county’s major food employers include:
- Monaghan Mushrooms — Europe’s largest mushroom producer, headquartered in Monaghan with operations across Ireland and the UK
- Silver Hill Foods — Duck processing facility in Emyvale, supplying supermarkets and restaurants across Europe
- Grove Turkeys — One of Ireland’s largest turkey producers, based in Smithborough
- Monaghan Poultry — Poultry processing in Carrickmacross
- Combilift — While primarily a forklift manufacturer (1,000+ employees), Combilift’s Monaghan facility has significant industrial cleaning needs
We provide industrial cleaning for food processing plants, manufacturing facilities, and warehouses across the county. Our teams are trained in HACCP-compliant cleaning protocols, food-grade sanitisation, cold store maintenance, and production floor cleaning. We operate across day, evening, and night shifts to match client production schedules.
Castle Leslie and Tourism
Our registered office sits within the Castle Leslie Estate, one of Ireland’s most distinguished castle hotels. Castle Leslie gained international fame as the venue for Paul McCartney and Heather Mills’ wedding in 2002. The estate has 1,000 acres, equestrian facilities, a spa, and a range of accommodation from the castle itself to village cottages. Glaslough village has been named Ireland’s tidiest village multiple times.
Beyond Castle Leslie, Monaghan’s hospitality sector includes the Four Seasons Hotel & Leisure Club in Monaghan town, the Glencarn Hotel in Castleblayney, the Nuremore Hotel & Country Club in Carrickmacross, and the Creighton Hotel in Clones. We provide hotel and hospitality cleaning with integrated laundry services for properties across the county.
Healthcare Cleaning
Monaghan’s healthcare needs are served primarily by Cavan General Hospital (the acute hospital for the Cavan-Monaghan region) and by a network of GP surgeries, dental practices, and primary care centres across Monaghan town, Carrickmacross, and Clones. St Davnet’s complex in Monaghan town provides mental health and community healthcare services.
We provide healthcare cleaning with full HSE compliance, colour-coded equipment, hospital-grade disinfectants, and HIQA audit-ready documentation. Our proximity means healthcare clients get same-day response for urgent cleaning requirements.
Carrickmacross: Lace Town
Carrickmacross, famous for its lace-making tradition, is Monaghan’s second-largest town. The Nuremore Hotel & Country Club is a premier golf and conference destination. The town has a busy retail centre, the Carrickmacross Retail Park, and several manufacturing and food processing operations. The Carrickmacross Lace Gallery is a cultural attraction drawing visitors from across Ireland.
Clones: Border Hub
Clones sits right on the Northern Ireland border and is the traditional home of GAA Ulster football. The town has a historic diamond (town square), St Tiernach’s Park (venue for Ulster Championship matches), and a growing number of small businesses serving both cross-border shoppers and local residents. The Canal Stores and heritage round tower add to the town’s appeal.
Patrick Kavanagh Country
Monaghan is the home county of Patrick Kavanagh, one of Ireland’s greatest poets. The Patrick Kavanagh Centre in Inniskeen, the Kavanagh Trail, and the annual Patrick Kavanagh Weekend draw literary tourists. Inniskeen also hosts the annual Inniskeen International Festival. We serve tourism and cultural venues across the county.
Towns We Serve in Monaghan
- Monaghan Town — County town; retail, offices, Four Seasons Hotel, St Davnet’s
- Carrickmacross — Nuremore Hotel, lace heritage, retail park, food processing
- Clones — Border town; GAA, heritage, cross-border commerce
- Glaslough — Optus Glean Head Office; Castle Leslie Estate
- Castleblayney — Glencarn Hotel, Lough Muckno, Hope Castle
- Ballybay — Central Monaghan; wetlands centre, agriculture
- Emyvale — Silver Hill Foods, border crossing to Aughnacloy
- Scotstown — North Monaghan; GAA heartland
- Inniskeen — Patrick Kavanagh Centre, literary tourism
- Smithborough — Grove Turkeys, agriculture
Our Monaghan Service Range
- Contract Office Cleaning
- Retail Cleaning
- Hotel & Hospitality Cleaning
- Healthcare Cleaning
- Industrial Cleaning
- Student Accommodation Cleaning
- Apartment Block Cleaning
- End of Tenancy Cleaning
- Post-Construction Cleaning
- Vacant Property Cleaning
- Carpet & Floor Cleaning
- Window Cleaning
- Pressure Washing
- Commercial Laundry & Linen
- Washroom Services
- Airport & Transport Cleaning
Sectors We Serve in Monaghan
- Hospitality — Castle Leslie, Nuremore, hotels, B&Bs
- Healthcare — GP surgeries, dental, primary care, St Davnet’s
- Corporate — Offices, Combilift, professional services
- Education — Schools, training centres
- Construction — Builder’s cleans, sparkle cleans, site maintenance
Neighbouring Counties
- County Cavan — Directly west, 30 minutes to Cavan town
- County Louth — South-east, 45 minutes to Dundalk
- County Meath — South via the N2
Frequently Asked Questions About Cleaning in Monaghan
Where is Optus Glean headquartered?
Optus Glean is headquartered at 26 Village Square, Castle Leslie Estate, Glaslough, Co. Monaghan, H18 XP59. Monaghan is our home county, giving local businesses the fastest response times and most competitive pricing.
How much does commercial cleaning cost in Monaghan?
Commercial cleaning in County Monaghan typically costs between €11 and €14 per hour in 2026. As our home county, Monaghan clients benefit from the lowest mobilisation costs and most competitive pricing in our portfolio.
Do you provide cleaning for Castle Leslie Estate?
Castle Leslie Estate is our registered office location. We provide hospitality cleaning services for hotels, guesthouses, and tourism properties across Monaghan.
What areas in Monaghan do you cover?
We cover all of County Monaghan including Monaghan town, Carrickmacross, Clones, Glaslough, Castleblayney, Ballybay, Emyvale, Scotstown, Inniskeen, and Smithborough.
Do you clean food processing facilities in Monaghan?
Yes. We serve Monaghan Mushrooms, Silver Hill Foods, Grove Turkeys, and other food processing companies with HACCP-compliant industrial cleaning.