Commercial Office Fit Out Contractors

Hertfordshire, London & UK

Interior office fit outs and re-fits...

The interior office fit out (or re-fit) of your new (or existing) commercial environment can be complex. It must accommodate all your staffing needs, represent your corporate brand and meet your business growth plans.

Engaging SEC Interiors to assess the feasibility of your office fit out project should be your first step.

We will work with you to develop a solution which fully meets your company’s needs and expectations. Our property appraisal and space planning and design processes will ensure that all avenues have been explored to ensure the office fit out works for you operationally, culturally and aesthetically; both now and in the future.


Interested? Get a quote by clicking here.

Ranging from 1,000 sq ft to 200,000+ sq ft, our solutions are extensive and fulfil every interior fit out requirement: from:


Office Interior Fit Out Company & Products


As one of the leading commercial interior and office fit out contracting companies in London and Hertfordshire, our network of product suppliers is vast. We are able to call upon the expertise of our support network in addition to applying our own extensive experience to plan and provide a bespoke office environment that is specific to your needs.

Office fit out

Category A Office Fit Outs


Whether an end user looking for a Category B fit out, landlord or property surveyor needing to complete a Category A fit out, we can work with you to determine the optimum solution whilst offering complete end to end Project Management.


A Category A fit out will form part of the core make up of an office environment ready for occupiers and includes:


  • Floor coverings
  • Suspended ceilings
  • Lighting, air conditioning and mechanical items
  • Wall finishes

This will provide the basis for the Category B fit out. 

Category B Office Fit Outs


Category B fit outs are for the occupier of the space prepared by the Category A installation. Category B solutions may include:


  • Designing specific alterations of the Category A fit out to suit the occupiers requirements including M&E services
  • Partitioning systems
  • Individual offices
  • Conference and meeting facilities
  • Tea points, staff areas and canteens
  • Flooring
  • Decoration and wall finishes
  • New office furniture and storage solutions
Office Fit Out

View our Case Studies

A detailed insight into some of the interior fit-out projects SEC has worked on

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