HVAC, Fit-Out & Facilities Management Services in London

Building Renovation & Fit-Out

Our fit-out team works across Cat A and Cat B commercial refurbishments in London. We manage full building renovation projects, office fit-outs, retail unit refurbishments, flooring and tiling, and painting and decorating. Projects are delivered on schedule with a single point of contact and minimal disruption to your operations.

We have completed fit-out projects in the City of London, Shoreditch, Westminster, and across the home counties.

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Facilities Management & MEP

We provide both hard and soft FM services to commercial clients across London. Our facilities management offering includes planned preventative maintenance (PPM), reactive callouts, mechanical and electrical services, plumbing, cleaning, and office removal and relocation. Our MEP division covers full mechanical, electrical and plumbing installations for new builds and refurbished commercial properties.

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London Areas we cover

We operate across all 32 London boroughs and the City of London, including:

Central London, City of London, Westminster, Southwark, Lambeth, Islington, East London: Tower Hamlets, Newham, Hackney, Waltham Forest, Barking & Dagenham, West London, Hammersmith & Fulham, Ealing, Hounslow, Hillingdon, North London, Camden, Haringey, Enfield, Barnet, Brent South London, Croydon, Lewisham, Greenwich, Bromley, Sutton

Need to confirm coverage for your postcode? Call our London team directly, and we will confirm availability and arrange a free site survey.

Why London Businesses Choose J SONS & CO.

Fully certified for UK compliance: Our engineers hold Gas Safe registration, F-Gas (Category 1) certification, and REFCOM Elite status. All electrical work is completed by qualified Part P engineers. Every installation meets UK building regulations and current British Standards.

Single contractor for multiple services: Most London building managers work with three or four separate contractors for HVAC, fit-out, MEP and cleaning. J SONS & CO. delivers all of these under one contract, one account manager and one invoice. This reduces coordination time, eliminates contractor overlap, and keeps costs controlled.

Commercial-only focus: We work exclusively in the commercial sector. Our engineers understand the specific requirements of London commercial buildings, from Listed Building constraints in Central London to the strict scheduling requirements of retail and hospitality sites that cannot afford operational downtime.

Rapid response across London: Our London team operates across the capital with short mobilisation times. For planned maintenance clients, we offer priority callout response. For emergency breakdowns, our engineers carry a stock of the most common parts for the major brands we install, including Daikin, Mitsubishi Electric, Samsung and Fujitsu.

Sectors We Serve in London

We work with property managers, facilities directors, business owners and main contractors across a broad range of commercial sectors in London:

• Office buildings and business parks
• Retail units and shopping centres
• Restaurants, cafes and hospitality venues
• Healthcare facilities and clinics
• Schools, colleges and educational establishments
• Warehouses, logistics hubs and cold storage facilities
• Mixed-use residential and commercial developments
• UK Certifications & Accreditations

Every engineer working on London projects is qualified and certified to UK standards:

• Gas Safe Registered: Required by UK law for any gas work on commercial premises
• F-Gas (Category 1) Certified: Required for all refrigerant handling under UK F-Gas Regulations
• REFCOM Elite: UK’s recognised standard for responsible refrigerant management
• Part P Qualified: Covers all domestic and light commercial electrical installation work
• CHAS Accredited: Contractor Health and Safety Assessment Scheme
• Full Public Liability & Employer’s Liability Insurance: Minimum £5 million cover
• All our work comes with written certification and documentation for your compliance records.

London Projects

We have completed HVAC installations, fit-out projects and FM contracts across London for clients in financial services, healthcare, retail and hospitality. Our project portfolio includes commercial refrigeration for food businesses, full office refurbishments in the City, air conditioning installations for high-street retail chains, and long-term PPM contracts for multi-site property managers.

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Frequently Asked Questions London

Do you cover all London boroughs?

Yes. We operate across all 32 London boroughs and the City of London. We also cover the home counties, including Surrey, Hertfordshire, Essex and Kent, for clients with multi-site requirements.

Are your engineers Gas Safe registered?

Yes. All gas work carried out by our London team is completed by Gas Safe-registered engineers. We provide the registration number and documentation as part of every job completion pack.

Can you handle HVAC and fit-out in the same project?

Yes. This is one of the main reasons London building managers choose J SONS & CO. We coordinate HVAC installation alongside fit-out, and MEP works under a single managed contract, which reduces programme time and avoids the delays that occur when separate contractors need to sequence their work.

Do you offer planned maintenance contracts in London?

Yes. We offer annual PPM contracts covering air conditioning, heating systems, ventilation, refrigeration and general building maintenance. Contracts include scheduled visit reports, certification, and priority response for any reactive issues that arise between visits.

How quickly can you respond to an emergency in London?

For clients on a maintenance contract, we target a same-day response for emergency callouts within Greater London. For new enquiries, we aim to have an engineer on site within 24 hours for urgent issues.

Do you work on Listed Buildings or buildings in conservation areas?

Yes. We have experience working in conservation areas and on Listed Buildings across Central London. All work is carried out in compliance with planning conditions and heritage requirements.

Get a Free Site Survey in London

London Office: 222a Preston Rd, Wembley HA9 8PB, United Kingdom

Tel: +44 20 8050 7969

Email: info@jsonsco.com

Emergency callouts available