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Expert Office Interior Design Solutions London
Mantra Interiors is a leading provider of office interior design and fit-out solutions, specialising in creating adaptable, inspiring workspaces that align with modern business needs. With a focus on understanding client requirements, we deliver tailored projects that enhance company culture and support business objectives. Our expertise spans concept development, space planning, and full turnkey fit-out services across London and the South East. Backed by awards such as the 2021 Best Workplace Design Specialist title from BUILD Magazine, our team combines technical proficiency with creative vision to execute high-profile projects for diverse industries.

We prioritise transparency, rigorous project management, and post-completion support to ensure client satisfaction. Our innovative approach includes out-of-hours working to minimise business disruption and proprietary systems like Turnkey Fastrack for accelerated delivery. Clients consistently commend our professionalism, attention to detail, and ability to deliver complex projects within budget and timeline constraints.
Services
Office Interior Design Office Fit Out Project Management Turnkey Solutions Mechanical Alterations Electrical Installations IT Installations Data Cabling Space Planning Refurbishment
Highlights and features
  • We offer a full turnkey service from concepts through to interior fit out.
  • Our team are specialists in office fit out with industry-leading expertise.
  • Unrivalled project management ensures cost control and timely delivery.
  • Innovative Turnkey Fastrack service accelerates project completion timelines.
  • Tailored solutions to meet specific requirements, timelines, and budgets.
What people say
Professional and reliable High-quality design Seamless fastracking Imagination and attention to detail Positive impact on sales
Services
Office Interior Design
Our office interior design service creates inspiring, functional spaces that reflect brand identity and enhance workplace productivity. We conduct thorough consultations to understand business needs, incorporating ergonomic layouts, modern aesthetics, and compliance with building regulations. Clients benefit from 3D visualisations, detailed documentation, and cost-effective solutions that adapt to evolving business requirements.
Office Fit Out
We deliver comprehensive office fit-out solutions from initial concepts to final handover, specialising in relocating or upgrading workspaces. Our process includes space planning, material selection, and installation of electrical/mechanical systems. Clients receive tailored environments that improve operational efficiency while maintaining strict budget and timeline controls throughout the project lifecycle.
Project Management
Our project management service ensures seamless coordination of all fit-out elements, maintaining rigorous cost control and quality assurance. We handle contractor scheduling, compliance documentation, and client communication throughout the build process. This holistic approach guarantees timely delivery of fully functional spaces that meet exact specifications and regulatory standards.
Turnkey Fastrack
This innovative service streamlines office design and construction through integrated project phases, reducing typical timelines by up to 40%. We combine out-of-hours working with pre-fabricated components to minimise business disruption. Clients benefit from faster occupancy while maintaining high-quality finishes and full compliance with current building regulations.
IT Installations
Our IT installation service covers data cabling, power distribution, and network infrastructure for modern office environments. We support fibre optics, Cat6+ cabling, and AV systems integration while ensuring future-proof scalability. Clients receive reliable connectivity solutions that accommodate evolving technology requirements and support seamless business operations.
Questions
What services does Mantra Interiors offer?
We provide office interior design, fit-out, refurbishment, project management, mechanical/electrical installations, IT infrastructure, and Turnkey Fastrack solutions for accelerated delivery.
Do you work outside London?
While based in London, we serve clients across the South East England region with flexible project delivery options.
How do you handle project timelines?
Our Turnkey Fastrack system and out-of-hours working minimises disruption, ensuring timely completion while maintaining business continuity during fit-out processes.
What industries do you work with?
We serve diverse sectors including finance, media, legal, retail, healthcare, and technology, adapting spaces to specific industry requirements.