Turnkey commercial fit-outs, comprehensive mechanical & electrical engineering, and planned facilities maintenance delivered with smart problem-solving and multi-trade precision.
Operating across four integrated divisions backed by a dedicated London facilities management helpdesk, HCL delivers seamless turnkey execution with zero subcontractor friction.
Full structural alterations, CAT A and CAT B commercial fit-outs, Grade II listed townhouse restorations, and structural extensions.
30+ licensed engineers delivering 3-phase power, Daikin/Mitsubishi VRF climate control, MVHR ventilation, fire alarms, and CAT6 data cabling.
Translating designer concepts into reality with bespoke reception desks, glazed acoustic partitions, custom banquettes, and ceiling rafts.
Managing 35+ Central London corporate properties with 50–60 daily tickets, 48-hour emergency dispatch, and outdoor kitchens.
A cross-section of our 150+ completions across Central London, highlighting verified project footprints, around-the-clock shift delivery, and landlord endorsements.
Moorgarth / The Boutique Workplace Co. · Kings Cross (WC1)
Stripped to bare Victorian brickwork, preserving historic character while installing full M&E infrastructure, a structural architectural glass roof, and high-acoustic partitions.
High delivery velocity enabled the tenant to secure a 100% pre-let 5-year lease months before practical completion.
“HCL have completed on time, to the highest standard and have gone above and beyond our expectations.”— Danielle Jones, The Boutique Workplace Company
The Boutique Workspace Co. · Richmond (TW9)
Turnkey CAT A alterations and complete CAT B design & build fit-out across multi-floor floor plates, including total M&E overhaul, joinery packages, and acoustic glass partitions.
25,000 sq ft transformed in under 9 weeks through coordinated day and night trade shifts, handed over on budget.
“Countless successful projects later, HCL Interiors still exceed our expectations.”— Daniel Wheble, The Boutique Workplace Company
The Quantum Pension Fund · Kingston upon Thames
Comprehensive modernization of a 40,000 sq ft commercial hub for 200+ clients. Integrated commercial coffee bars, open lounges, acoustic banquettes, and private phone pods.
Shift teams finalized practical handover at the rear entrances just as initial tenants moved in through front reception.
“Exemplary service from all members of the team over four years of commercial collaboration.”— Gary Lewis, Moorgarth
Ministry Of Sound · Elephant & Castle (SE1)
Specialist bespoke reception joinery, heavy-duty commercial washrooms, and complete design & build of an integrated boutique fitness gym facility.
All equipment packed away nightly by 9 PM with work restarting at 6 AM, working around 2,000 weekend club patrons without incident.
“Flawless execution under intense live operational constraints.”— Venue Operations Team
Taboola · Aldgate (EC3)
Domestic-inspired creative workspace for tech leader Taboola, incorporating residential-style soft breakout zones, meeting pods, and structural network distribution.
An authentic London Black Cab was disassembled, carried through standard office doors, and rebuilt overnight in the lobby lounge.
“Nothing is impossible to them. ‘Can we have a Black Taxi in our lobby?’ Sure, you can, and they did.”— Facilities Team, Taboola
The Boutique Workplace Co. · Soho (W1)
Complete multi-floor overhaul delivered without operational interruption while maintaining 100% tenant occupancy. Relocated central comms room 6ft, rerouting 350+ data cables.
When an external courier shattered fresh entrance tiles on handover morning, HCL sourced and relaid replacement tiles in under 2 hours.
“I would have no hesitation in recommending HCL Interiors to potential new clients.”— Daniel Wheble, The Boutique Workplace Company
Explore our operational density, active maintenance contracts across 35+ Central London corporate properties, and rapid 48-hour emergency mobilization radius.
Notable Completions & Assets: 29 Clerkenwell Road (Flagship Event & Office space), St. John St
Our central operational headquarters. Direct hub for our 8-person management desk, materials procurement, and rapid emergency maintenance response teams.
Founded two decades ago in London, HCL Interiors expanded the Holloway family’s established British construction heritage into a premier commercial design-and-build contractor.
Under Managing Director Jamie Holloway, who assumed leadership from his father, HCL has championed a hands-on management approach where directors remain visibly active and accessible on all operational sites. In 2016, Equity Partner Anthony Murphy joined the firm, spearheading the creation of our dedicated in-house Mechanical and Electrical (M&E) division.
Today, our 8-person operational headquarters team in Clerkenwell coordinates over 60 site operatives and 30+ M&E engineers, managing 50 to 60 planned and reactive maintenance tickets every single day across 35+ Central London corporate properties.
Directing operations with 20+ years of building trade leadership. Hands-on on site every week; West Ham season ticket holder and UPR youth football coach.
Directs M&E engineering and client relations. Joined in 2016 to build our 30-engineer MEP division; available to clients 7 days a week.
Read word-for-word reviews verified from our 5.0-star Google Places profile alongside testimonials from leading commercial property directors.
“Jamie and Anthony have done a lot of projects for me over the last several years ranging from small maintenance jobs to converting offices into flats to big office refurbishments. They have been responsive and ‘can-do’ and their team is a pleasure to be around. I highly recommend.”
“Great company, would highly recommend.”
“They are really precessional for the work they do. I'm impressed.”
From initial site appraisal and space planning through to rapid mobilization and zero-disruption handover, our multi-trade methodology guarantees delivery certainty.
Site laser surveys, building control compliance verification, and 3D space planning aligned with architectural mood boards.
Immediate trade mobilization down to 48 hours. Procurement of core materials through our direct Central London supply network.
Dedicated site foreman overseeing day & night shifts, 30+ M&E engineers, joiners, and mechanical trades under single-source accountability.
Pre-handover audit to reduce snagging lists to near zero, accompanied by full O&M manuals and ongoing 24/7 reactive facilities maintenance.
Straightforward answers regarding CAT A vs CAT B specifications, occupied refurbishments, and maintenance SLAs.
A CAT A (Category A) fit-out delivers the basic functional commercial landlord space: raised access flooring, suspended acoustic ceilings, basic mechanical ventilation, perimeter electrical distribution, and core life safety systems. A CAT B (Category B) fit-out transforms that space into a move-in-ready corporate workspace: custom partition walls, private meeting rooms, bespoke joinery, tea points, breakout cafes, brand finishes, and integrated AV/data cabling.
Yes. Many of our flagship projects—including Soho Square (5,865 sq ft) and Ministry of Sound—were executed while buildings maintained 100% active tenant occupation. We operate strict dust and acoustic containment, perform noisy works during agreed out-of-hours windows, and deploy double-shift teams to safeguard business continuity.
For urgent reactive maintenance across our Central London portfolio (EC1, EC2, EC3, EC4, W1, WC1, WC2), our response window is under 45 minutes from our Clerkenwell desk. For major fit-out and refurbishment projects, we have a proven mobilization record of just 48 hours from brief approval to on-site trade commencement.
Without exception. We hold full NICEIC Approved Contractor accreditation, Gas Safe registration, REFCOM F-Gas certification, and manufacturer approvals from Daikin and Mitsubishi Electric. All works receive formal Electrical Installation Certificates (EICRs), commissioning data, and UKAS ISO 9001 quality audits.
Reach out directly to Managing Director Jamie Holloway or Partner Anthony Murphy for rapid project tenders, space appraisals, or facilities care.
| Monday | 6:00 AM – 8:00 PM |
| Tuesday | 6:00 AM – 8:00 PM |
| Wednesday | 6:00 AM – 8:00 PM |
| Thursday | 6:00 AM – 8:00 PM |
| Friday | 6:00 AM – 8:00 PM |
| Saturday | 6:00 AM – 8:00 PM |
| Sunday | 6:00 AM – 8:00 PM |
Tell us about your property, scope of works, or urgent maintenance requirement. A director will respond within two hours.