About DPMNI Ltd
Your Vision, Our Mission. A family-owned property maintenance company serving Northern Ireland with excellence and integrity.
Our Story: A Family Legacy of Excellence
DPMNI Ltd (Diamond Property Maintenance NI) began with a simple vision: to create a property maintenance company that Northern Ireland families and businesses could genuinely trust. Founded and co-directed by Christina Rea and Tristan, our company represents the perfect fusion of people-first values and technical mastery.
Christina brings 17 years of experience in youth and community work, where she developed exceptional communication skills and a deep understanding of people's needs. Her background in community engagement means she truly listens to customers and ensures every project meets their specific requirements. Tristan complements this with 20 years of hands-on experience in site fitting and management across both residential and commercial projects throughout Northern Ireland.
What started as a small operation has grown into one of Northern Ireland's most trusted property maintenance providers. Today, we proudly serve 1,400+ satisfied customers, from young families in their first homes to major commercial organizations like the Northern Ireland Housing Executive and Combined Facilities Management. This growth hasn't happened by accident; it's the result of unwavering commitment to quality, safety, and customer satisfaction on every single project, regardless of size.
Our team has expanded to 12+ trained professionals, each carefully selected for their technical skills, reliability, and shared commitment to our values. Every team member undergoes rigorous training and holds relevant certifications for their specialized areas, ensuring you receive consistent, professional service every time.
As a family business, we're not just building a company, we're building a legacy. We're setting an example for our children and the next generation about the importance of hard work, integrity, and treating every customer's property with the same care we'd give our own. This personal stake in our reputation means you can trust us to go the extra mile on every project.
Happy Customers
45 Reviews
Insurance Coverage
Services Offered
Our Core Values
Excellence in Everything
We are committed to delivering exceptional results on every project, no matter the size. Our attention to detail and dedication to quality sets us apart from competitors. From a single-room clean to a full house extension, we bring the same level of professionalism and care. Our perfect 5.0/5.0 rating from 45 reviews isn't luck. It's the direct result of our uncompromising standards.
Safety First, Always
With PASMA and IPAF certifications for working at height, £5,000,000 public liability insurance, and rigorous health and safety protocols, we prioritize the safety of our team, your property, and your family on every job. All team members receive regular safety training and use professional-grade equipment. We're fully compliant with all Northern Ireland building and safety regulations.
Environmental Responsibility
We use eco-friendly, biodegradable cleaning products that are child-safe, animal-safe, and plant-safe, protecting your family and the environment without compromising on results. Our soft-washing techniques minimize water usage while maximizing effectiveness. We properly dispose of all waste and take active steps to reduce our environmental footprint on every project.
Our Mission
To provide Northern Ireland homeowners and businesses with reliable, high-quality property maintenance services that exceed expectations. We're committed to building long-term relationships based on trust, professionalism, and consistently outstanding results. Every project we undertake, whether it's a routine gutter clean or a major renovation, receives the same meticulous attention to detail and dedication to customer satisfaction. We aim to be the obvious first choice when Northern Ireland thinks of property maintenance.
Our Vision
To become Northern Ireland's most trusted and comprehensive property maintenance provider, recognized for our integrity, quality, and genuine care for our customers. We envision a future where DPMNI is synonymous with reliability and excellence across all aspects of property care. As we grow, we're committed to maintaining the personal touch and family values that define us, while expanding our capabilities to serve more customers across the province. We're building a legacy that our children and future generations can be proud of.
What Makes DPMNI Different
Comprehensive Service Range
Unlike most competitors who specialize in one area, we offer 27+ services across cleaning, exterior maintenance, and building work. This makes us your single point of contact for all property needs, saving you time and ensuring consistent quality across projects.
Family-Owned Accountability
As a family business, our reputation is personal. We don't just work for you, we work alongside you. Christina and Tristan are directly involved in every aspect of the business, ensuring quality control and customer satisfaction at the highest level.
Perfect Safety Record
With PASMA and IPAF certifications, £5,000,000 insurance, and zero accidents in our operational history, we take safety more seriously than anyone else in the industry. Your property and our team are always protected.
Proven Commercial Experience
Our partnerships with NI Housing Executive and Combined FM demonstrate our ability to handle large-scale, complex projects while maintaining the quality and attention to detail that residential customers love.
Genuine Local Knowledge
We live and work in Northern Ireland. We understand the unique challenges of our climate, from persistent dampness to sudden storms, and how they affect properties. This local expertise ensures effective, long-lasting solutions.
Transparent Pricing
No hidden fees, no surprise charges. We provide detailed quotes upfront and stick to them. What we quote is what you pay, building trust through honesty and transparency in all our dealings.
Certifications & Trusted Partnerships
Professional Certifications
- PASMA (Prefabricated Access Suppliers' and Manufacturers' Association) - Mobile Tower Scaffolding
- IPAF (International Powered Access Federation) - Aerial Work Platforms
- £5,000,000 Public Liability Insurance
- £10,000,000 Employers' Liability Insurance
- Fully Compliant with NI Health & Safety Regulations
- Environmental Management Certified
Commercial Partnerships
Northern Ireland Housing Executive
Trusted contractor for property maintenance across multiple housing developments and estates throughout Northern Ireland.
Combined Facilities Management
Preferred partner for comprehensive cleaning and maintenance services across commercial and institutional properties.
These partnerships validate our capability to deliver consistent, high-quality service at scale, bringing the same professionalism to your home or business.