Professionally managed construction installation services — electrical, mechanical, civil works and interior fit-out delivered by vetted specialist teams across London and the South East.
Horizon Construction Installations Ltd is a London-registered principal contractor operating under SIC 43290 — Other Construction Installation. We bring together expert, vetted specialist subcontractors and manage them under a single, accountable project framework.
Our model is built around transparent communication, diligent site oversight, and a relentless focus on quality at every stage — from initial scope through to final sign-off. We serve commercial and residential clients across London and the surrounding counties.
All subcontractors are selected for technical competence, reliability, and track record — managed under Horizon's direct oversight.
One contract, one point of contact. Horizon coordinates all trades and takes full responsibility for programme and quality delivery.
Clients receive clear, regular project updates. No surprises — proactive notification of any programme or scope changes.
From commercial electrical works to residential fit-out, groundworks, and full project management — each service is delivered under our structured principal contractor model.
Commercial and residential electrical works delivered with precision. From first fix containment and cabling to final fix accessories and testing.
Coordinated mechanical systems installation for commercial and residential environments, managed to programme.
Premium residential fit-out and installation services — kitchens, bathrooms, joinery and fixtures to specification.
Site preparation, enabling works and civil construction to support the full installation programme.
Full principal contractor responsibilities — from programme planning and subcontractor coordination to quality and client reporting.
Whether refurbishing a London apartment or fitting out a commercial unit, Horizon brings the same detail-focused approach to every interior installation. Our managed teams work cleanly, methodically, and to programme.
We combine structured project management with genuinely skilled specialist tradespeople — and hold ourselves accountable throughout.
Every project is run under a clear programme with defined milestones, responsibilities, and reporting lines. Clients always know where their project stands.
We don't use generic labour. Our subcontractor network is carefully selected for proven skill, reliability, and fit-for-purpose technical competence on each trade package.
Direct, honest updates from the people managing your project. We surface issues early and resolve them proactively — rather than presenting surprises at handover.
Operational across all London boroughs and into Surrey, Kent, Essex, and Hertfordshire — with local knowledge and supply chain relationships to match.
From first fix through to final snagging, our standard is one of methodical precision. Work is inspected at every stage before the next trade moves forward.
Under our principal contractor model, Horizon assumes full accountability for the installation programme — removing the administrative burden from our clients entirely.
Horizon is based in central London and operates across all 32 boroughs plus the City of London, with regular project work extending into the South East counties.
Whether you have a fully scoped tender or an early-stage enquiry, we welcome the conversation. We'll respond promptly and professionally.