Office Cleaning Services
in Northern Ireland
Experience the difference of DPMNI Ltd’s professional office cleaning services
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Office Cleaning Services Northern Ireland
DPMNI Ltd provides professional office cleaning services across Northern Ireland, helping businesses maintain hygienic, organized, and productive workspaces. Whether you need daily, weekly, or deep cleaning, our expert team ensures your office remains spotless.
Why Choose DPMNI Ltd for Office Cleaning?
Experienced & Reliable Team: Over 30 years in facilities management and high-risk cleaning.
Custom Cleaning Schedules: Daily, weekly, or one-off deep cleaning tailored to your business.
Eco-Friendly Products: Safe and sustainable cleaning methods to protect employees and clients.
Comprehensive Cleaning Services: Covering all office areas, from workstations to common areas and restrooms.
Local Experts: Serving Belfast, Bangor, Newtownards, Lisburn, Ballymena, Carrickfergus, Derry, Newry, Armagh, and Coleraine.
Our Services
Internal Cleaning Services

Domestic Cleans
Routine cleaning services tailored to keep your home fresh and hygienic, ensuring a comfortable living environment.

Commercial Cleans
Professional cleaning services for offices, retail spaces, and businesses, maintaining a clean and professional workspace.

Hard Floor Cleans
Specialist cleaning for both domestic and commercial hard floors, ensuring durability, shine, and cleanliness.

Daycare Facilities Deep Clean
Thorough disinfection and deep cleaning for nurseries and daycare centers to ensure a safe and healthy space for children.

Builders Cleans
Post-construction cleaning services to remove dust, debris, and residues, leaving properties move-in ready.

End of Tenancy Cleans
Comprehensive cleaning services for landlords and tenants, restoring properties to a pristine condition.

Deep Cleans
Intensive cleaning for homes and commercial spaces, tackling grime, bacteria, and allergens in every corner.
Our Office Cleaning Services
Daily & Weekly Office Cleaning
Regular cleaning services to maintain a professional, clean, and healthy office environment.
Deep Office Cleaning
Thorough cleaning of desks, floors, kitchens, restrooms, and shared spaces to eliminate germs and allergens.
Workstation & Desk Sanitization
Sanitizing workstations, keyboards, and office equipment to prevent the spread of bacteria and viruses.
Floor & Carpet Cleaning
Professional vacuuming, mopping, and deep cleaning of carpets, tiles, and hard flooring.
Washroom & Restroom Sanitization
Comprehensive cleaning and restocking of office restrooms, ensuring hygiene and cleanliness.
Kitchen & Breakroom Cleaning
Regular cleaning of office kitchens, removing dirt, grease, and bacteria from appliances and surfaces.
Reception & Common Area Cleaning
Maintaining spotless reception areas and shared office spaces to create a welcoming atmosphere.
Post-Construction & Move-In Cleans
Office deep cleaning services for newly constructed, renovated, or relocated office spaces.
Why Choose Us
Six Reasons For People Choosing Us
Experienced Team
Our time-served tradesmen are PASMA and IPAF-trained professionals, ensuring safe and efficient service.
Comprehensive Insurance
We carry £10 million public liability insurance and specialized SSR insurance for your peace of mind.
Eco-Friendly Cleaning
We use child-safe, animal-safe, and plant-safe cleaning solutions to protect your environment.
Tailored Solutions
Every roof is unique, which is why we provide a free consultation and custom cleaning plans.
Proven Track Record
With over 1,400 satisfied customers, we’re trusted by homeowners and businesses alike.
Local Expertise
We understand the unique challenges in North Down and Antrim, tailoring our services to meet the specific needs of your area.
EXCELLENT Based on 29 reviews Megan FitzsimmonsTrustindex verifies that the original source of the review is Google. Great service 10/10 Tracey WoodsTrustindex verifies that the original source of the review is Google. I approached Tristan at Diamond Property Maintenance having seen a Tik Tok video demonstrating their impressive approach to cleaning gutters! A conversation with Tristan led me to decide to engage other services as well, keen as I was to do what I can to protect the house against damp. Tristan explained the benefits of cleaning my roof of all mud/moss and talked about how the protective coating applied would protect my roof for the long-term. There was no hard-sell, just a knowledgeable approach that put me at my ease. The team were great, and I am delighted that we have had this work done, one to protect our home, but I am even more delighted at the significant improvement to the house’s appearance. The colour of the original roof tile is just lovely, and they also cleaned our patio and driveway, again using their protective coating to prevent the unsightly green/brown staining from re-emerging. I would definitely recommend Tristan and his team. Very impressed by the service received. Doreen McGuinnessTrustindex verifies that the original source of the review is Google. Brilliant work!! The difference in the outside of my property is amazing. Defo recommend gail stewartTrustindex verifies that the original source of the review is Google. Our driveway looks like new again! Cleaned, treated and sealed - brilliant job & great communication Belinda DohertyTrustindex verifies that the original source of the review is Google. Had these guys out for outdoor maintenance, pressure washing and gutter cleaning. They did a fantastic job. Friendly, professional and reliable, wouldn't hesitate to recommend them. Thanks so much! Adrian BradleyTrustindex verifies that the original source of the review is Google. Great guys and a pleasure to work with. Did an amazing job and their head for heights is amazing. Best in the market. 👍👍👍 The OnLegs Agency Kate RooneyTrustindex verifies that the original source of the review is Google. We are absolutely delighted with the results. We went for the roof to gate option and could not be happier ☺️ The roof exceeded our expectations. The house feels like new. Checkout Before and after pics to see for yourself. Highly recommend the Team DPMNI Ltd Ailish McMeelTrustindex verifies that the original source of the review is Google. From the initial quote to the finished job these guys were very efficient and friendly. We had a roof clean and the entire place was left spotless. The work is also guaranteed which is fabulous. Would definitely recommend. KPJ FergusonTrustindex verifies that the original source of the review is Google. These guys came out done a fantastic job with no hassle at any expense. Certainly recommend the work I had got done 👍. Abbie EdgarTrustindex verifies that the original source of the review is Google. Great customer service. Came when they said they would, did a good job and left everything clean and tidy. Would highly recommend. Thanks again 😊
Frequently Asked Questions
We offer daily, weekly, and monthly cleaning services, depending on your business’s needs.
Yes, we use non-toxic, environmentally friendly cleaning products that are safe for employees and clients.
Absolutely! We provide tailored cleaning solutions to meet your specific requirements.
Yes, we provide after-hours and weekend cleaning services to minimize workplace disruption.
We offer office cleaning services across Belfast, Bangor, Newtownards, Lisburn, Ballymena, Carrickfergus, Derry, Newry, Armagh, and Coleraine.

Local Experts Serving Northern Ireland
We proudly offer Office cleaning throughout Northern Ireland, including Newtownards, Derry/Londonderry, Armagh, and Ballymena. No matter your location, we tailor our services to your property’s specific needs.
Belfast
Bangor
Newtownards
Lisburn
Ballymena
Carrickfergus
Derry/Londonderry
Newry
Armagh
Coleraine
No matter where you are, our team is ready to provide top-notch property maintenance services tailored to your location’s specific needs. We provide a province-wide service across Northern Ireland.
Book Your Office Cleaning Service Today
Maintain a pristine workplace with DPMNI Ltd’s expert office cleaning services. Call now or book online for a free consultation.
Our Location
Belfast
Trust DPMNI Ltd for professional office cleaning across Northern Ireland!
Townsend Enterprise Park, Townsend St, Belfast BT13 2ES
Phone: 02895606799
Email: Info@dpmni.co.uk