A Category B (Cat B) fit-out transforms an empty commercial space into a fully functional, branded working environment. At Redline Building, we deliver high-quality Category B fit-out services in London, creating bespoke office spaces that are tailored to the needs of modern businesses.

With a strong focus on design, functionality and performance, our Cat B office fit out solutions help businesses maximise productivity while reflecting their brand identity.

What is a Category B Fit-Out?

A Category B fit-out takes a space from its basic Cat A condition and turns it into a complete, ready-to-use workplace. This stage focuses on the internal layout, finishes and features required for day-to-day operations.

A typical Cat B fit-out in London includes:

Office partitioning and meeting rooms
Workstations and office furniture
Flooring, ceilings and decorative finishes
Branding and feature walls
IT infrastructure and data cabling
Kitchenettes and breakout areas
Reception areas and client-facing spaces
Lighting design tailored to the workspace

The result is a fully operational office environment, designed specifically around the occupier’s requirements.

Our Category B Fit-Out Services

We offer a complete design and build service, managing every stage of your Cat B fit-out project.

Our services include:

Workplace consultancy and space planning
Interior design and concept development
Office partitioning and layout installation
Mechanical and electrical (M&E) integration
Furniture procurement and installation
Finishes, flooring and decoration
Project management and coordination

We work closely with you throughout the process to ensure your office fit out is delivered on time, within budget and to the highest standard.

Cat B Fit-Out Contractors London

As experienced Cat B fit-out contractors in London, we have delivered projects across a wide range of sectors, from corporate offices to creative studios.

Our approach focuses on:

Understanding your business requirements
Creating efficient and flexible layouts
Delivering high-quality finishes
Minimising disruption to operations
Ensuring full compliance with UK regulations

We pride ourselves on delivering office environments that not only look impressive but also perform effectively for your team.

Why Choose Redline Building? for Cat B Fit-Out London?

Choosing the right partner for your Category B fit-out in London is key to achieving the best results.

Proven experience in office fit out projects across London
End-to-end design and build service
Strong project management and communication
High-quality craftsmanship and attention to detail
Solutions tailored to your business and brand

We create workspaces that support productivity, collaboration and long-term success.

Bespoke Office Fit Out Solutions

At Redline Building, we understand that no two businesses are the same. Our Category B fit-out services in London are tailored to create a workspace that supports your team, culture and long-term growth.

Whether you are relocating, expanding or refurbishing an existing space, we deliver office fit out solutions that balance practicality with design. From open-plan offices to hybrid working environments, we ensure your space is both efficient and visually impactful.

CHECK OUT OUR OFFICE FIT OUT LONDON PROJECTS

Start Your Cat B Fit-Out Project

If you are planning a Category B fit-out in London, our team is ready to help you transform your space into a fully functional and inspiring workplace.

See Our Customer Reviews

We pride ourselves on delivering quality workmanship and exceptional customer service. Our team of experienced builders and designers are dedicated team to providing you with the highest standard of work, ensuring that your office fit-out is completed on time and within budget.

"The Redline team was exactly what we were looking for, a reliable building company that are great to work with. They are very skilled tradesmen and always courteous. Some complex design changes and unusual finishes all taken within their stride. Highly recommended!"

THEO BULMER

“High-end finish, great communication, very flexible with an eye for detail, reliable and works to schedule. Always our first port of call for studio fit out.”

PETER JOHNSON - ONE TEN PRODUCTIOns

“We are impressed with Redline’s commitment to getting the job done on time, in budget and to the highest professional standards - often in the face of unforeseeable complications and difficult working environments.”

MD - WARREN LAND & PROPERTY

“The key to our successful relationship was Ben's unwavering attention to detail and daily presence on site. His team were able to tackle a complicated project within the constraints of a grade II listed building.”

MARC B - PENTHOUSE APARTMENT, LONDON

Category B fit-out (Cat B) Services London