Deep Cleaning
Belfast
Intensive Top-to-Bottom Cleans for Homes, Businesses & Rentals Across Northern Ireland
Deep Cleaning by DPMNI
When standard cleaning just isn’t enough, our deep cleaning services in Belfast offer a complete reset for your space. At Diamond Property Maintenance (DPMNI), we provide thorough, detailed deep cleans across Northern Ireland — ideal for neglected spaces, end-of-tenancy turnarounds, post-illness sanitation, or seasonal refreshes.
Our trained, insured cleaning team goes beyond the surface to tackle the dirt, dust, and grime that general cleans often miss — making your environment healthier, safer, and more comfortable.
Trusted by Homeowners, Landlords & Businesses
Why Book a Deep Clean?
Over time, dust, bacteria, and grime build up in hard-to-reach or overlooked areas. A professional deep clean ensures:
Thorough removal of hidden dirt, grease, and allergens
A more hygienic, healthier home or workplace
A clean slate before decorating, moving, or seasonal change
Fresh, odour-free rooms with improved air quality
Peace of mind after illness, infestation, or neglect
Our deep cleaning service is perfect for kitchens, bathrooms, bedrooms, hallways, and shared spaces — in homes, rentals, or commercial properties.
What’s Included in a Deep Clean?
Our deep cleaning service is tailored to your space and condition. A typical job includes:
Sometimes, a general clean just won’t cut it — that’s where we come in.
Frequently Asked Questions
Most jobs take 4–6 hours. Large homes or neglected spaces may require more time or multiple cleaners.
We clean around large furniture where safe. Let us know if you want us to move or assist with rearranging items.
No — many clients give us access and return to a sparkling home. We’re happy to work around your schedule.
Yes — we use safe, approved products. Eco-friendly or allergy-sensitive options are available upon request.
A regular clean covers surface areas. A deep clean goes behind, underneath, and into areas that aren’t usually touched in day-to-day cleaning
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.
Proven Track Record
With over 1,400 satisfied customers, we’re trusted by homeowners and businesses alike.
Tailored Solutions
Every job is unique, which is why we provide a free consultation and custom plans based on your needs.
Local Expertise
We understand the unique challenges in North Down and Antrim, tailoring our services to meet the specific needs of your area.
Ready to refresh and restore your property's interior?
Book Your Deep Clean Today
When your space needs more than a wipe-down, DPMNI’s deep cleaning service delivers the detailed, top-to-bottom clean that brings it back to life.
Other Internal Cleaning Services We Offer
We deliver thorough, flexible, and hygiene-focused cleaning solutions for residential, commercial, and specialist environments across Northern Ireland
DomesticCleaners
Trusted, thorough home cleaning tailored to your property and lifestyle. Ideal for families, working professionals, and elderly clients.
CommercialCleaners
Reliable, discreet cleaning for retail stores, showrooms, and business premises — keeping work environments clean and professional.
BuildersCleans
Fast and detailed post-construction cleans for building firms, renovators, landlords, and property developers. We remove dust, paint splashes, and debris so your space is move-in ready.
DeepCleans
Intensive, top-to-bottom cleans ideal for spring refreshes, hygiene resets, or properties that need extra attention.
OfficeCleaners
Keep your workplace fresh, productive, and sanitised with regular office cleaning — including desks, kitchens, toilets, and high-touch surfaces.
Hard FloorCleans
We clean, restore and maintain all types of hard flooring — from vinyl and tile to stone and wood. Removes grime, restores shine, and improves safety.
End of Tenancy Cleans
Moving out or managing rentals? Our end-of-tenancy cleans ensure your property is spotless and deposit-ready.
Daycare FacilitiesDeep Clean
Sanitised, child-safe cleaning tailored to nurseries, playgroups, and care facilities. Discreet and DBS-checked staff available.
CarpetCleaning
Deep-cleaning for carpets and rugs to remove stains, allergens, and odours. Restores softness and freshness to every room.