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Structural Engineer Manchester – RSJ design & calculations for wall removals, lofts & home extensions
Structural engineer Manchester delivering fast, Building Control–ready calculations, RSJ/steel beam design, drawings and structural reports across Greater Manchester. From load-bearing wall removals and loft conversions to home extensions and new builds, our chartered team produces clear, compliant designs that keep projects moving. Fixed fees. Quick turnaround. We work with your architect, builder and Building Control.
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Completed projects
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Quotes delivered nationwide
Building Control ready
Clear, buildable notes
Like-for-like price beat
Who We Work With
Architects
Fast calculations, mark-ups, and responsive coordination throughout your project.
Builders
Buildable details, simple notes, and quick answers when you need them.
Developers
Full packages for conversions, new builds, and mixed-use schemes.
Our Structural Engineering Services
Clear, buildable design paired with Building Control-ready documentation. Below are our most-requested services across Manchester.
Structural Calculations
Load path calculations, beam sizing, and connection details.
Building Control Drawings
Clear, accurate, and contractor-ready drawings for approval.
Learn: Regulations Drawings
RSJ / Steel Beam Design
Steel beam design for remodelling, openings, and wall removals.
Reads: Steel Beams, End Restraints
Extensions & Lofts
Full calculation packages with marked-up plans.
Foundation Design
Strip, trench-fill, raft, or piled solutions based on ground conditions.
Read: Foundations
Surveys & Reports
Defect diagnosis, crack reports, and mortgage/insurance surveys.
New Build Support
Full structural design from concept to sign-off.
Related: Connections, Engineer in UK
Collaborative & Insured
We coordinate with architects and builders, fully covered by Professional Indemnity Insurance.
Detailed Service Information
RSJ / Steel Beam Calculations (Manchester)
Creating openings? Our specialists produce RSJ/steel beam calculations that satisfy Building Control and keep your site moving. You’ll receive:
- Correct beam size and grade
- Padstone/bearing details
- Lateral restraint & stability checks
- Connection details and notes for the contractor
Load-Bearing Wall Removal in Manchester
Opening up a kitchen-diner? We deliver wall removal calculations with temporary works advice and final steel design, all ready for Building Control.
- Assessment of existing structure
- Temporary works design (propping)
- Permanent steel beam (RSJ) design
- Padstone and bearing details
Loft Conversions & House Extensions
Our package includes all roof checks, joist upgrades, trimmers, posts, and beam designs. For extensions, we design beams, lintels, and foundations.
Structural Surveys & Reports (Manchester)
Buying, selling, or resolving a defect? Our chartered engineers in Manchester provide:
- Structural surveys with defect diagnosis (e.g., cracking, movement, lintel failure)
- Structural reports for lenders, insurers and solicitors
- Practical remediation advice that can be priced and built
Foundation Design & New Builds
We design cost-effective foundations based on Manchester's ground conditions. For new builds, we provide the full design package: floors, beams, lateral stability, and roof structure.
- Foundation design (strip, raft, piled)
- Ground bearing slab calculations
- Superstructure design (floors, beams, columns)
- Roof structure and stability bracing
Read next: Foundations – Types & Importance, Structural Connections
Building Control Drawings (Manchester)
We provide clear, accurate, and contractor-ready drawings to ensure your project sails through Building Control approval without delays.
- Fully detailed mark-ups with sections
- Clear call-outs and specifications
- Formatted for council submission and builder use
- Compliance with relevant Approved Documents
Portal Frames, Slabs and Mezzanines
Commercial structural engineering for industrial and large commercial projects across Greater Manchester. Clear, buildable design with fast coordination.
Portal Frames
Steel portal frames that provide large, column-free spans with efficient material use. Ideal for warehouses, retail units and industrial buildings.
- Typical spans 15–50 m
- Eurocode checks and connection details
- Buildable mark-ups for fabricators
Heavy Duty Slabs
Ground-bearing and suspended slabs sized for load capacity, deflection control and durability under industrial traffic.
- Reinforcement schedules and joints
- Racking and machinery load cases
- Cost-balanced thickness and detailing
Mezzanine Floors
Steel mezzanines that add usable floor area without extending the building envelope. Perfect for storage, production lines or offices.
- Framing, decking and connection design
- Live and dead load checks
- Stairs and edge-protection coordination
All designs meet Eurocodes and UK Building Regulations. Calculation packs include buildable details, connection notes and documentation ready for Building Control.
Latest Projects
Browse a selection of our recent work across Greater Manchester.
Extension & Loft Conversion (Stockport, Greater Manchester)
Greater Manchester
Home Extension (Sale, Greater Manchester)
Greater Manchester
Home Extension (Didsbury, Greater Manchester)
Greater Manchester
Home Extension (Bolton, Greater Manchester)
Greater Manchester
Extension & Loft Conversion (Altrincham, Greater Manchester)
Greater Manchester
Transparent Pricing
RSJ / Wall Removal
From £195
Most popular service for opening up spaces
Loft Conversion
From £450
Complete package with roof checks and trimmers
Single-Storey Extension
From £550
Beams, lintels and foundations included
Structural Survey
From £375
Defect diagnosis with practical remedies
Why Choose SECalcs
Fast Turnaround
Same-day and 48-hour options for urgent projects across Manchester.
Manchester Specialists
Local knowledge of regulations, inspectors and build methods across the city.
Collaborative
We liaise with your architect, builder and Building Control throughout.
5★ Local Reviews
Trusted by homeowners, architects and builders throughout Greater Manchester.
Clear Deliverables
Calculations, notes and drawings your builder can follow without confusion.
Chartered & Insured
Full Professional Indemnity cover on all deliverables for your protection.
Successful Projects & Satisfied Customers
Every project backed by 5★ service and trusted by homeowners, builders, and architects.
★★★★★
"For over a decade, I've been collaborating with SECalcs. Their approach to engineering is both logical and efficient. They excel in devising solutions for complex structural challenges, consistently delivering prompt and effective results."
Oliver Bennett★★★★★
"I recently engaged SECalcs for a swift and straightforward project. Their team adeptly handled the calculations for an RSJ, integrating everything seamlessly. Impressively, we received all necessary calculations and dimensions within half a day. Their efficiency is commendable."
Emily Thompson★★★★★
"From the outset, my experience with SECalcs was exceptional. The initial phone conversation was informative, and they delivered plans and drawings promptly, demonstrating their commitment to efficient service."
James Richardson★★★★★
"Our choice to use SECalcs Engineers came highly recommended by our builder and inspector. Their engineer was outstanding, visiting our site and providing detailed calculations and drawings for construction. I wholeheartedly endorse their services."
Charlotte Wilson★★★★★
"My experience with SECalcs Consulting for my large extension was incredibly positive. They were helpful and responsive, providing a transparent quote and comprehensive drawings that secured Building Control approval."
William Cooper★★★★★
"The expedited service I received from SECalcs was remarkable. Initially apprehensive about my project, their friendly engineer and rapid delivery of calculations eased my concerns, letting me move forward quickly."
Amelia Smith★★★★★
“Fast, professional and clear calculations for our wall removal. Building Control approved first time.”
Kamal SalamHow SECalcs Works in Manchester
We keep things simple. Four clear steps from quote to sign-off, with quick answers and buildable details at every stage.
Step 1 • Get a quote
Share your plans and a short brief. We confirm scope and a fixed fee.
Step 2 • Site check (if needed)
We review drawings and visit if required for measurements or defects.
Step 3 • Detailed design
Calculations, RSJ sizing, notes and mark-ups prepared for Building Control.
Step 4 • Ongoing support
Quick clarifications during build. Revisions if site conditions change.
Whether you’re in Greater Manchester or anywhere in the UK, our team is ready to assist you with your structural engineering needs. Contact us today for a quote or to answer any further questions about our services. We look forward to working with you and ensuring the success of your project.
Areas We Cover Across Greater Manchester
We provide services throughout Greater Manchester, including:
City Centre
Salford
Trafford
Stockport
Tameside
Bury
Bolton
Rochdale
Oldham
Wigan
Altrincham
Sale
Didsbury
Chorlton
Urmston
…and surrounding areas
Engineers Based Across Greater Manchester
Quotes, site visits, and support handled by our Manchester team. We know local Building Control and typical house types across the city, so you get fast, practical designs that pass first time.
✓ Familiar with Manchester City Council, Salford, Trafford, Stockport, Tameside, Oldham, Rochdale, Bury, Bolton, and Wigan
✓ Same-day phone advice and 48-hour design options for urgent jobs
✓ Site visits available across M postcodes
ManchesterSalfordTrafford
StockportTamesideOldham
RochdaleBuryBoltonWigan
All work delivered under SECalcs. Manchester projects are managed locally. Head Office administrative address is outside Manchester. Your day-to-day contact is the Manchester team.
Adam M.
Senior Structural Engineer
Lofts and wall removals. North and Central Manchester.
Sara R.
Structural Designer
Extensions and steelwork. South Manchester and Stockport.
James T.
Site Engineer
Site surveys and builder liaison. Salford and Trafford.
Are you actually based in Manchester?
Yes. Your project is handled by our Manchester team who live and work locally. We also have a head office outside Manchester for accounts and administration.
Map shows our coverage area. Exact office address is not needed to start. We meet on site or via video and phone.
FAQs – Structural Engineer Manchester
Common questions, clear answers
Everything you need to know about structural calculations, RSJ beams, Building Control and how we work across Greater Manchester.
Q Do I legally need a structural engineer in Manchester?
Yes. For any work that changes the load-bearing structure, such as wall removal, RSJ installation, loft conversions or extensions, Building Control will usually require structural calculations prepared by a qualified engineer.
Q How much does a structural engineer cost in Manchester?
Costs depend on span, loads and complexity. Typical local fees start from £195 for wall removals, £450 for loft conversions and £550 for extensions. Send your plans for a fixed quote.
Q What will a structural engineer do for my project?
We check the existing structure, design beams, lintels and foundations, specify restraints and connections, and supply Building Control-ready calculations and drawings for your builder.
Q Do I need an architect or a structural engineer?
Architects handle layouts and planning, while engineers make the structure safe and buildable. Many Manchester projects need both. We collaborate closely with your architect.
Q How fast can you deliver calculations?
Most wall removals and RSJ designs are completed within 24 to 72 hours once we have the information we need.
Q Do I always need a site visit?
Not always. We can quote from drawings and photos. We’ll advise if a visit helps confirm measurements or load paths.
Q What do Building Control need from you?
A signed calculation pack with load paths, beam sizes, bearings, padstones and marked-up drawings. This is everything needed for Building Control approval in Manchester.
Q What is an RSJ and when is it needed?
An RSJ (Rolled Steel Joist) is a steel beam used to support openings when removing load-bearing walls. Most open-plan designs in Manchester homes require at least one RSJ designed and approved by a structural engineer.
Q How do I know if a wall is load bearing?
Look for joists or roof members resting on the wall, a wall directly above on the next floor, thicker blockwork or solid brickwork, or a steel or timber beam over openings. Always confirm with a structural engineer before removal. We can check from drawings and photos, and visit if needed.
Q Can you help with Building Control submissions?
Yes. Our calculation packs and drawings are formatted for Manchester City Council and local authorities across Greater Manchester to ensure smooth approval.
Q Do you design for loft conversions in Manchester?
Absolutely. We provide full structural design for loft conversions, including new floor joists, trimmers, posts, beams and stability checks, all tailored to Manchester property types.
Q Do you carry out structural surveys in Manchester?
Yes. We offer structural surveys and defect reports for cracks, movement and settlement. Reports are accepted by solicitors, lenders and insurers.
Q Are your engineers based in Manchester?
Yes. Our team lives and works across Greater Manchester, with engineers covering Salford, Stockport, Didsbury, Chorlton and Altrincham for quick response and local knowledge.
Q How do I get a quote from a Manchester structural engineer?
Upload your drawings or photos via our contact form or email. A local engineer will review them and send a fixed-fee quote, usually the same day.
Speak to a Structural Engineer Manchester Today
Ready to move forward? Contact SECalcs for a fast, fixed-fee quote. Attach your plans or tell us what you’re building and a structural engineer Manchester will get back to you promptly.
- Sunday: Closed
- Monday - Thursday: 9AM - 6PM
- Friday: 9AM - 5PM
- Head Office: Corwell Lane, Uxbridge, England, UB8 3DE.
- 07359 267907
- info@structuralengineercalcs.com
- Company No: 12653163