More Space, Same Footprint
- No reconfiguration to the ground floor
- Discrete support strategy for a light “floating” feel
- Details that respect the look of the house
- Better thermal performance and long-term flexibility
Enhancing homes across Didsbury with trusted structural expertise.
At Structural Engineer Calcs, we provide detailed structural calculations for safe, seamless, and fully compliant home extensions in Didsbury and across Manchester.
We deliver **Building Control approved structural calculations** that meet every regulation and ensure complete peace of mind.
Every project is carefully designed to stand strong, combining precision, reliability, and a clean modern finish.

Didsbury, Manchester
Home Extension
Detailed Structural Calculations
Building Regulations Ready
More living space without changing the ground floor. This neat addition sits over the existing single-storey area, adding real value while keeping the layout below exactly as it is.
Gain room for a larger kitchen, a relaxing family area, or an open-plan living space that makes daily life easier and more enjoyable.
A well-planned extension can increase your property’s worth by up to 20%, giving you both comfort now and return on investment later.
Structural design that supports wider openings and natural light helps connect your home and garden while improving energy efficiency.
Every home is different. Our engineers create designs that work perfectly with your existing structure — built around your lifestyle and future plans.
Every project is unique, but one thing never changes — the need for accurate, safe, and compliant structural calculations. Our engineers collaborate closely with:
We design structures that are safe, practical, and cost-effective, helping you build with confidence and peace of mind.
Our calculations support creative, fully compliant designs — blending engineering precision with architectural intent.
We ensure construction runs smoothly with clear, buildable details and reliable specifications on every project.

“Structural Engineer Calcs handled our calculations and Building Control documents flawlessly. The process was fast, affordable, and clear from start to finish.”
From homeowners to architects and builders, Structural Engineer Calcs delivers clear, reliable structural calculations and drawings that keep your project safe, compliant, and on schedule.
Get a QuoteSafe, compliant loft designs with clear load paths and buildable details.
Expert RSJ layout and bearing checks to open up bright, open-plan spaces.
Full structural packages that support smooth construction and inspections.
Precise engineering for wider openings, modern spans, and slim sightlines.
Complete, Building Control-ready documentation for fast approvals.
Here are some of the most frequently asked questions we receive:
Yes. Any home extension that involves removing load-bearing walls, adding new floors, or installing steel beams requires structural calculations. These ensure your design is safe, compliant with Building Regulations, and approved by Building Control. Our structural engineers in Didsbury provide full structural calculations for home extensions and loft conversions.
Most residential projects, such as extensions or loft conversions, are completed within 5–10 working days from instruction. Larger or more complex designs may take longer, depending on the amount of detailing required.
Absolutely. We regularly collaborate with architects and builders across Greater Manchester. If you already have planning or architectural drawings, our engineers can prepare the structural calculations directly from them.
Simply send us your existing and proposed floor plans (PDF or DWG format) and a short description of the work , for example, “first-floor extension” or “RSJ for wall removal.” We’ll review the drawings and provide a fixed-fee quote with no hidden costs.
Yes. Every package we produce is Building Control-ready, complete with full calculation sheets, structural notes, and beam connection details. Our work is widely accepted across Manchester councils and throughout the UK.
Yes, we provide structural design services across Greater Manchester and nationwide , including Stockport, Sale, Altrincham, Bolton, Wigan, and Cheshire. We also offer remote services for clients anywhere in the UK.
Prices vary depending on scope, but most home extensions or loft conversions start from £650–£1,500, including Building Control-ready documents. We always provide a clear written quote before starting any work.
Yes. We specialise in RSJ and beam calculations for wall removals, bi-fold door openings, and open-plan layouts. Our designs ensure the structure remains strong while giving you the bright, open space you want.
Once you’ve received your PDF calculation pack, you can submit it to your Building Control officer or share it directly with your builder. We’re always available for follow-up support if your builder or inspector has any questions.
You can request a quote online in minutes.
Just click below to send us your drawings and details — our team will get back to you the same day.
