Business Details
27 Years
experience
Expert Construction Contractors in London
Harmonix Construction was established in 1999 with a vision to redefine industry standards through innovative construction practices. Our flat management structure and proactive communication approach ensure clients receive tailored solutions across light-industrial projects including self-storage, warehouses, and commercial developments. With over 25 years of experience, we combine technical expertise with value engineering to deliver projects on time and within budget. Our commitment to sustainability is demonstrated through BREEAM certifications, waste reduction initiatives, and partnerships with environmental organisations. We actively engage with local communities through educational programs and charitable initiatives.Our team's extensive sector knowledge spans hotel and leisure developments, residential projects, and complex refurbishments. Recognised for our collaborative approach, we maintain long-term client relationships through transparent project management. As a registered member of the Considerate Constructors Scheme, we continually strive to improve industry practices. Our workforce development programs and mental health initiatives reflect our holistic approach to construction excellence. With operations across the South East, we remain dedicated to pushing boundaries in construction methodology while maintaining our core values of integrity and accountability.
Services
Self-storage construction
Hotel & leisure developments
Warehouse construction
Commercial buildings
Residential projects
Refurbishments
Design & build
Fit out
New build
Details
- Year established: 1999
Highlights and features
- 25 years of specialist experience in light-industrial construction
- Flat management structure ensures direct client communication
- Proactive approach to value engineering and innovation
- Registered with Considerate Constructors Scheme since 2000
- Award-winning sustainability initiatives including BREEAM certifications
Associations and certifications
- Considerate Constructors Scheme
What people say
High standard
On time and budget
Proactive approach
Impeccable attention to detail
Clean and tidy site
Services
Self-storage construction
Specialist construction of modern self-storage facilities with secure access systems and efficient space planning. Our projects incorporate durable materials and innovative layouts to maximise rental potential. Clients benefit from our sector-specific expertise gained through delivering over 1 million sq ft of storage units.
Commercial developments
Comprehensive construction solutions for commercial properties including office spaces and retail units. We implement energy-efficient designs while maintaining strict budget controls. Our experience ensures compliance with commercial building regulations and accessibility standards.
Refurbishment projects
Modernisation of existing structures with minimal disruption to ongoing operations. Our team specialises in integrating contemporary systems into traditional buildings while preserving architectural integrity. Clients receive tailored solutions balancing cost-effectiveness with long-term value.
Sustainable construction
Environmentally responsible construction incorporating BREEAM-certified practices and waste reduction strategies. We implement energy-efficient systems and sustainable materials sourcing. Our Planet Mark partnership ensures continuous monitoring of carbon footprint reductions.
Design & build
Integrated design and construction service offering single-point accountability. From concept to completion, we coordinate all aspects while maintaining cost transparency. Clients benefit from accelerated project timelines and cohesive execution of their vision.
People
John Farragher
Company Director
Co-founder with over 25 years construction industry experience. Specialises in project management and client relations, ensuring delivery of complex schemes while maintaining Harmonix's core values of integrity and innovation.
Troy Hunter
Company Director
Established Harmonix in 1999 with expertise in construction methodology and commercial management. Oversees technical delivery of projects, known for meticulous attention to detail and problem-solving capabilities on complex developments.
Shane McLoughlin
Commercial Director
Joined Harmonix in 2007, progressing from Quantity Surveyor to leadership role. Manages financial aspects of projects, ensuring cost control while maintaining quality standards across all developments.
Darren McQuibban
Project Director
Graduate entrant who has advanced through the ranks over 17 years. Specialises in coordinating multidisciplinary teams, with particular expertise in managing logistics for urban construction sites with challenging access requirements.
Luke White
Procurement & Sustainability Manager
Leads Harmonix's environmental initiatives including BREEAM certifications and Planet Mark partnership. Develops sustainable supply chains and implements waste reduction strategies across all construction projects.
Questions
What construction sectors does Harmonix specialise in?
We focus on light-industrial projects including self-storage facilities, warehouses, commercial buildings, residential developments, hotel and leisure complexes, and both new builds and refurbishments.
How does Harmonix approach sustainability?
We implement BREEAM-certified practices, partner with Planet Mark for carbon monitoring, and maintain a 95% waste recycling rate. Our tree replacement program ensures 20 new plantings for every tree removed.
Do you work outside London?
While based in London, we operate throughout the South East region, delivering projects in locations including Surrey, Kent, and Essex as part of our regional service commitment.
How does Harmonix manage project timelines?
Our flat management structure enables quick decision-making. We use proactive planning tools and maintain regular client communication to ensure all projects meet agreed deadlines.
What safety accreditations do you hold?
We are registered with the Considerate Constructors Scheme and implement rigorous safety protocols including mental health first aid training for all site managers.
Can Harmonix handle complex refurbishment projects?
Yes, our team specialises in upgrading traditional buildings with modern systems while preserving architectural features, ensuring minimal disruption to existing operations.
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Reviews (3)
David Jason
Sep 25, 2021
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NON - PAYERS RUN A MILE !! Be very weary of these guys. I dealt with Gearoid who refused to pay around 810 owed to me for work I done. I completed all duties requested whilst onsite so really no reason not to pay. Just generally looking foir any reason not to pay I guess.!
Luke Henney
Aug 29, 2021
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THEY DO NOT PAY, CHECK CONTRACT..!! I booked in 2 weeks holiday cover work with PSR at Harmonix , after 2 days of working I was sent out what looked to be a generic contract that had no relevance to my role stipulating a number of times I would not be paid if I did not complete certain tasks not relevant to my role. I questioned the contract and was told I just need to sign and not worry about the particulars. I refused to sign and was told I could not carry on with the work if I did not sign, so I left half way into the third day. I would never have started the role if this contract had been
Stanley Ainslie
Jun 12, 2019
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Very nice Office Manageress (sorry I'm old school and pc blind). Smart office set up, well equipped technically, especially with young vibrant staff.
