Loft Conversion Structural Calculations – Manchester & Surrounding Areas
MJC deliver structural calculations for residential loft extensions and loft conversions across Manchester.
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Local structural engineers, trusted across the region
We work on loft conversions across Manchester, Stockport, Salford, Trafford, Cheshire and beyond. Whether it’s a simple rooflight conversion or a complex dormer build, we’ll design a solution that’s safe, compliant, and cost-effective.
Specialist Structural Engineers for the UK’s Live Entertainment Sector
From listed theatres and music venues to airport concessions and temporary event structures, MJC delivers structural engineering that supports performance, safety, and creativity.
Established for over two decades
MJC was founded in the mid-90s by Mike Jackson. Mike quickly built a reputation as the ‘go to guy’ for theatre renovations, show signage applications and stage and grid work.
MJC's Growth
Mike's in-depth understanding of UK venues and their structural capabilities, and the increasing demands new shows made on this infrastructure, enabled him to quickly build up the business based on word of mouth recommendation alone.
Expanding our expertise
Since then, the business has grown significantly, expanding to include project managers, structural engineers, and surveyors - each benefiting from Mike’s extensive industry knowledge and experience.
MJC's Client-Centric Approach
Now working alongside Tom Jeffcoat, Daniel Staines, and Pedro Barata, Mike remains a key part of the Manchester team, which delivers specialist structural engineering services to the live events, theatre, and airport retail sectors across the UK.
LIVE EveNTS
STAGE DESIGN
Working in theatres and live venues means there’s no room for error - and that’s where MJC stands out. We’re known in the industry for being calm under pressure, clear on site, and dependable from first sketch to final sign-off. It’s why so many production teams come back to us.
Tom Jeffcoat
Structural Engineer, MJ Consulting Engineers
Yes - with offices in London and Manchester and a network of experienced engineers, we deliver structural engineering solutions for theatres and performance venues throughout the UK.
Absolutely; heritage venues are a core part of our expertise. We balance preservation requirements with structural upgrades to support modern rigging, lighting, and performance demands.
Yes - from temporary structures and roof trims to signage and production rigging, we engineer solutions that deliver safety, compliance, and speed for live show environments .
Extensive - we've completed projects at Heathrow T2, T5, Gatwick, Birmingham Airport and Liverpool John Moore Airport, delivering bespoke structural designs that meet tight schedules and live-site requirements .
Yes - we perform ceiling void, roof, rigging point, and structural inspections to assess condition and readiness for production use or fit-out modifications .
Our teams are accustomed to fast-paced schedules. We’re regularly brought into projects during show rehearsals or airport closures - and we deliver reliable structural solutions under time pressure.
We work closely with architects, venue owners, contractors, production teams, and heritage bodies to ensure structural integrity, adherence to regulations, and build-ready details.
Yes, typically within 5 working days.
Frequently Asked Questions
Everything you need to know about working with MJC - how we work, where we work, and what we deliver.
Structural Support That Performs On Stage and On Site
From listed theatres and concert halls to airport concessions and live venues, we bring practical structural engineering to complex environments. Whether you're planning a refurbishment, fitting out a retail unit, or navigating venue constraints, we’ll help you make it buildable - and make it happen.
Make the most of your space - safely and structurally sound.
Planning a loft conversion? You’ll need structural calculations to make sure the new space is safe, buildable, and compliant with Building Regulations. That’s where we come in.
What we provide:
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Structural design for beams, joists, floor strengthening and roof alterations
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Calculations for dormers, Velux openings, or full roof lifts
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Design drawings for Building Control approval
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Coordination with your architect or builder
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Why it matters:
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Load-bearing walls and roof structures often need modifying
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Floor joists may require upgrading to support new loads
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Calculations are essential for approvals - and peace of mind
