Amelia Wright
3 months ago
SECalcs explained everything in plain English and turned our extension around quickly. Building Control asked one question which they handled the same day. Couldn’t have been easier.
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Chartered Structural Engineer Near Me
★★★★★
150+ five-star reviews
Building Control ready
Fixed fee from £200
Reports in 48 hours
Structural Calculations For Beams, Wall Removals, Extensions & Loft Conversions
Building Control ready. Fixed fee. 48-hour turnaround. Trusted by homeowners in London, Birmingham, Manchester and across the UK. Safe, practical design for homes and extensions.
2100+ residential projects signed off by Building Control.
RSJ beams, loft conversions, load-bearing wall removals,
and extension support steel sized for real on-site conditions.
OUTSTANDING
Based on 150 reviews
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What Homeowners Say About SECalcs
Recent comments from clients across the UK.
Daniel Foster
5 months ago
Professional from start to finish. Clear drawings, accurate calcs, and a fair fixed fee. Our builder commented on how tidy the pack was.
Priya Shah
1 year ago
Needed steel design for a through-lounge wall removal. They checked the foundations, sized the RSJ, and provided padstone details. Building Control approval came back without any fuss.
Hannah McBride
7 months ago
We had an urgent loft conversion that needed sign-off. SECalcs delivered on time and answered the inspector’s query the same morning. Highly recommend.
Avtar Singh
2 months ago
SECalcs designed steels for our rear extension and knocked-through kitchen. Clear markups, prompt responses, and Building Control signed off first time.
Laura Chen
4 weeks ago
Really helpful with our loft conversion. They explained load paths simply and coordinated with our architect.
Tom Richardson
9 months ago
Pragmatic about beam options and suggested a slimmer section to keep ceiling height. Quick turnaround.
Aisha Khan
6 months ago
Calcs for wall removal and bi-fold opening. Clear padstone notes for the builder.
Ben Holloway
1 month ago
Great service. Fixed quote, tidy drawings, answered inspector the same day.
Olivia James
2 years ago
Conservation area dormer; design worked neatly around existing timbers.
Peter Lawson
11 months ago
Fast response. Options explained on a call. Final pack matched the brief.
Gareth Evans
5 weeks ago
Excellent communication and value. Very smooth from sketch to calcs.
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
Expert Structural Engineering Consultancy & Design
Safe, practical, Building Control ready designs for extensions, lofts, wall removals and RSJ beams. Delivered fast and backed by clear, fixed pricing.
About SECalcs
SECalcs is a trusted name in structural engineering consultancy and design. Our experienced team supports homeowners and small developers across the UK with safe, efficient solutions that meet Building Control standards.
We use modern analysis software and real world engineering judgement to make sure your project is buildable, cost effective and compliant.
Your Local Engineer, Nationwide
Choosing SECalcs means you get direct access to qualified engineers throughout your project. From RSJ beam design and load bearing wall removal to loft conversions, extensions and foundation checks, we cover the essentials that keep your home safe.
With engineers operating across London, Birmingham, Manchester and the wider UK, we are always within reach. Tell us what you are planning and we will guide you from first enquiry to Building Control approval.
Why Homeowners Choose SECalcs
Fixed fees, fast turnaround, no site visit needed in most cases, and drawings your builder can actually follow.
Residential Specialists
Extensions, loft conversions, load bearing wall removals and RSJ beam design, all sized for real on site conditions.
- Steel / RSJ design with padstones
- Foundations, lintels and supports
- Builder friendly drawings
Building Control Approval
You receive a full calculation and drawing pack ready for submission. If Building Control asks questions, we respond so you do not have to.
- BC ready documentation
- Direct support for inspectors
- Smoother sign off
Clear, Buildable Design
Concise notes, tidy details and realistic steel sizes. Your builder can see exactly what is needed without guesswork.
- Readable details and sections
- Practical, cost aware solutions
- Fast revision turnaround
Fixed, Transparent Pricing
Clear scope and fixed fee agreed upfront. Send a genuine like for like quote and we will beat it.
- No hidden extras
- Fast turnaround available
- Trusted by homeowners across the UK
Homeowners, Architects & Builders
We design. You build with confidence.
✓
Homeowners
Safe, practical and cost conscious designs for extensions, loft conversions and load bearing wall removals, sized so they work in the real world.
✓
Architects
Structural input that respects layout, head height and aesthetics. Markups and calculations delivered in a format that keeps planning intent intact.
✓
Builders
Clear RSJ sizes, connection details and padstone specs so you can order steel and get on with the job. Fast answers during construction if Building Control asks anything.
We respect your privacy. Files are reviewed in house only and handled securely.
Our 4 Step Process To Building Control Approval
Most projects do not need a site visit. Send photos, get calcs. Here is how we take you from first enquiry to Building Control sign off.
1
Send Drawings
Send us your drawings, sketches or clear photos of the area. We review the structure and confirm what support is needed.
2
Fixed Fee Quote
You get a clear scope of work, fixed cost and turnaround time. Everything is agreed upfront so there are no surprises.
3
Calculations & Drawings
We prepare Building Control ready structural calculations, RSJ / steel sizes, padstones and connection notes. You also get drawings your builder can follow on site.
4
Approval Support
We respond to Building Control comments, provide reasonable revisions, and support your builder through to final sign off so the work can start safely.
Our Range Of Services
At SECalcs, we offer a full range of structural engineering services tailored to your project. We design structures that are safe, efficient and sustainable.
Structural Analysis & Design
Calculations for beams, columns, slabs and frames, using modern software and real engineering judgement.
Building Control Drawings
Clear, Building Control ready drawings and calculation reports that make approval straightforward.
Construction Supervision
On site supervision and inspection services to ensure designs are built safely and correctly.
Project Management & Advice
Professional guidance and engineering advice from concept to completion, ensuring value and safety.
We focus on quality and accuracy, with a proven track record of successful projects across the UK.
Structural Engineering Calculations and Drawings
Expert structural engineering calculations and drawings are the backbone of any successful building project. Our experienced team supports homeowners and small developers across the UK with safe, efficient designs that meet Building Control requirements.
- Building Control ready calculation packs
- Clear drawings your builder can follow
- Steel / RSJ sizing, padstones, lintels
- Advice for extensions, lofts and wall removals
We combine modern analysis software with real engineering judgement to make sure your project is buildable, cost-effective and compliant. Contact us for expert structural engineering calculations and drawings.
Get a quoteSteel / RSJ Beam Design
Steel / RSJ beams are the backbone of open-plan extensions and wall removals. They take the load so you can create wide, bright spaces with full confidence that your structure is safe and compliant.
- RSJ beam sizing for openings and extensions
- Padstone and bearing design
- Checks for deflection and vibration limits
- Building Control approved calculation pack
Our engineers design every beam using advanced analysis software and real-world construction knowledge. You get accurate calcs, clear drawings, and peace of mind that your project is structurally sound from the start.
Get my beam designed
Foundation Design
The foundation is what holds everything up. If it’s wrong, the whole project is at risk. We design foundations that match your ground conditions, loading and extension layout, so the structure stays safe for years.
- Strip, trench fill and pad foundations designed
- Checks for bearing pressure and settlement
- Designs for extensions, new builds and retaining walls
- Building Control compliant calculation pack
We look at soil type, load paths and long term movement, not just “will it stand up today”. You get clear drawings your builder can set out on site, with all sizes, depths and concrete specs.
Get my foundation designed💡 Did You Know?
Most RSJ designs can save up to 25% in steel weight with optimized calculations — without compromising safety.
Load Bearing Wall Removal
Removing a load bearing wall can be daunting. We assess the structure, calculate the loads, and design the correct support so you can safely open up your space.
- On-site / photo-based structural assessment
- Steel / RSJ beam sizing for the opening
- Padstone and load transfer design
- Building Control ready calculation pack
We make sure the load from above is safely re-routed through beams, bearings and supports that comply with local regs. You get clear drawings your builder can follow, and calculations you can submit for approval.
Get help removing a wall
Home Renovations & Extensions
Home renovations and extensions are a smart way to increase space, comfort and property value. We help homeowners and architects plan safe, practical designs that meet Building Control standards.
- Structural calculations for extensions and refurbishments
- Designs that integrate new and existing structures
- Checks for foundations, beams, and load paths
- Full Building Control approved calculation pack
We work closely with architects and contractors to make sure every renovation or extension is structurally sound, energy efficient, and built to last — from concept to completion.
Start my renovation projectTypical Cost for Home Extension Calculations
Most home extension projects fall between £250–£550 depending on beam spans and complexity. Every job is quoted individually with a fixed, transparent fee.
Loft Conversions
Loft conversions are a great way to create extra living space without extending your home’s footprint. We design safe, compliant conversions that maximise headroom, light, and structural stability.
- Full structural design for dormer and hip-to-gable lofts
- Rafter, purlin and floor joist sizing
- Steel beam (RSJ) and post design for new openings
- Building Control approved calculation pack
Our engineers work closely with architects and builders to ensure your loft conversion is efficient, safe, and fully compliant with UK Building Regulations — adding value and usable space to your home.
Get my loft designed
Retaining Walls & New Builds
Retaining walls keep soil where it should be, protect against movement on sloped sites, and make tricky gardens usable. Safe design matters, especially when there’s a level change near a house, boundary or public area.
- Structural retaining wall design in concrete, blockwork or timber sleepers
- Checks for sliding, overturning and bearing pressure
- Drainage and surcharge loading considered
- Foundation and wall design for new build projects
We design walls and new build foundations to current UK standards, so they’re not just strong on day one — they stay stable long term. You get drawings and calculation packs for Building Control.
Get my wall / foundations designed⭐ “SECalcs delivered Building Control approval in days — fast, clear, and professional.”
Cost Considerations
Quality engineering design doesn’t come cheap, but it’s an investment in the safety and long-term performance of your structure. Good calculations and detailing can also save you money by avoiding over-specification, delays on site and failed inspections.
- Accurate structural calculations help avoid costly over-engineering
- Clear drawings reduce delays, queries and rework for builders
- Upfront design prevents “surprises” during Building Control approval
- Safe, compliant work protects you from liability and remedial costs
Factors like span sizes, site conditions and materials all affect cost. Working with experienced structural engineers means you get sensible, buildable solutions — not just something that “passes on paper”.
Get a fixed-fee quote📍 Our chartered structural engineers provide structural engineering services across Greater Manchester and the North West, including Stockport, Altrincham, Bolton, Sale and Didsbury.
Choosing a Structural Engineer Near Me
When it comes to choosing a structural engineer in your area, there are several factors to consider. One of the most important considerations is the engineer’s experience and qualifications. Look for an engineer who has worked on similar projects to yours in the past — this helps ensure they have the necessary expertise to complete your project successfully.
It’s also essential to choose an engineer who communicates well and understands your specific needs and goals. Reading reviews or asking for references from previous clients can help you gauge their reputation and quality of work. Lastly, always check their licensing and certification to ensure they meet all necessary requirements in your area.
Speak to a qualified engineer
Why Choose Our Local Structural Engineer?
Experienced & solid Team
Our aim is to provide sound and economical structural engineering designs.
- FULLY QUALIFIED
- HIGHLY EXPERIENCED
- MAXIMUM VALUE
- QUICK TURNAROUND
Local structural engineers can provide unparalleled benefits when it comes to your construction project. Given their familiarity with the local building codes, regulations, and geology, they can help streamline the design process while ensuring that your structure is both safe and efficient. Moreover, with their established relationships in the area, they can help connect you with quality contractors, builders, and architects who have a similar commitment to excellence. By choosing a local structural engineer near you, not only are you supporting the community but also ensuring that your project receives personalized attention at every step of the way.
Let us help you build a better future today!
Pioneering Solutions for Your Building Challenges
Tailored Solutions for Your Unique Projects
Building a Strong Foundation for Your Success
Building Better Futures for Your Projects
From Design to Construction, We've Got You Covered
Trustworthy Partners for Your Building Needs
successful projects & satisfied customers.
★★★★★ 5/5
Frequently Asked Questions
We are here to help you
Quick answers to the most common questions homeowners ask us about loft conversions, wall removals, extensions, foundations and Building Control.
Yes. A loft conversion changes how the roof and floor carry load. A qualified structural engineer checks the roof structure, new floor joists, beams, supports and the overall stability so Building Control can approve it.
We design steel beams, ridge supports and joist layouts for dormers, hip to gable and Velux lofts. You can see more on our loft conversion page.
For small jobs, you might not legally need one, but for any work that affects structure (for example a new opening in a wall, a loft conversion or an extension), Building Control will expect proper structural calculations and drawings.
If you’re unsure, just contact us and we’ll confirm what’s required for your project.
A structural inspection and written report typically costs between £350 and £650 + VAT depending on the property’s size and condition.
If you’re buying a home and want a full RICS survey, visit RICS. For a detailed engineer’s report or Building Control calculations, see our structural engineer service.
Non load bearing wall checks can start from about £250. Load bearing wall design is higher because we confirm load paths, design the RSJ or steel beam, bearings and padstones. Typical fees for a new opening in a load bearing wall often start around the £500 plus range.
Learn more here: load bearing wall removals .
A full RICS building survey for a house usually costs between £500 and £1,500. That is normally done by a chartered surveyor regulated by RICS.
What we provide is different. We give you structural calculations and drawings so your builder knows exactly what steel or timber to install and so Building Control can sign off the work.
If you need calculations rather than a survey, start here: structural calculations.
A local engineer understands typical house types, soils and what local Building Control wants to see. That means faster approval and fewer revisions.
For Manchester homeowners: structural engineer Manchester .
Foundation design is where we size the footings so they can safely carry the loads from the structure into the ground.
We look at soil type, bearing capacity, clay movement, water table and depth. Good foundation design stops cracking, settlement and future movement.
Read more: foundation design.
Prices vary with span, loads and complexity. As a guide, wall removals start from £195, loft conversions from £450, and extensions from £550. Ask for a fixed quote that includes Building Control ready calculations and drawings.
Yes, if anyone has raised a concern about cracks, sagging floors, roof deflection, lintels dropping or movement around an opening.
A structural engineer will tell you if it’s cosmetic or serious and what to do next. Getting advice early usually saves money and stress.
You can speak to us here: contact us.
If the wall is load bearing, yes. Before you knock it down, we calculate the correct RSJ or steel beam size, bearings and padstones. Building Control will ask for these calcs.
If the wall is not load bearing, we can confirm that so you don’t take out something structural by mistake.
Read more: load bearing wall removals .
A structural engineer checks that your building is safe and stable. We design beams, columns and foundations, assess load bearing walls and provide calculation reports for Building Control.
Yes. Proper design avoids on site mistakes, keeps your project compliant with the Building Regulations and usually saves money by getting the specification right first time.
Whenever you plan to change the structure, for example removing a wall, adding an RSJ, converting a loft or building an extension. Involve the engineer early so the design can guide your architect and builder.
Look for someone local, experienced and insured. Check reviews, ask if they are chartered (MIStructE or MICE) and view recent projects. A good local engineer understands your council’s Building Control requirements.
Yes. We provide free, no obligation quotes from drawings or photos. Send your plans and we will confirm price and turnaround within 24 hours.
Contact Us
Your success is our priority - let's work together!
Get A Quote
Ready to get started on your next project? Look no further than SECalcs! Our team of experienced engineers is dedicated to providing high-quality services, including design and analysis, site inspections, and project management. We understand that every project is unique, which is why we take the time to listen to your requirements and provide personalized solutions. Contact us today to discuss your project needs and receive a customized quote. Let us help turn your vision into a reality!
- Sunday: Closed
- Monday - Thursday: 9AM - 6PM
- Friday: 9AM - 5PM
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+44 7359 267907
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info@structuralengineercalcs.com
SECalcs provides expert structural engineering consultancy and design services across the UK, including London, Birmingham, and Greater London. Our team of experienced chartered engineers offers a wide range of services, from calculations and drawings to steel/RSJ beam design, foundation design, load bearing wall removal, home renovations and extensions, loft conversions, retaining walls, and new builds. With a commitment to safety and excellence, SECalcs provides cost-effective, personalized, and reliable solutions tailored to meet your specific needs.
- Head Office: Corwell Lane, Uxbridge, England, UB8 3DE.
- 07359 267907
- info@structuralengineercalcs.com
- Company No: 12653163