Exterior view of a two-storey industrial building with corrugated metal cladding

Structural engineering services in Portsmouth and across the South since 1996

Name: Fast Calc Ltd
Address: Rodney Road, Portsmouth, ENG, PO4 8SY, GB
Telephone: 023 9388 0090

Domestic and commercial expertise. Comprehensive plans. Quick quotes. Based in Portsmouth and working across the UK.

Call us: 023 9388 0090

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What sets us apart

Clear thinking from experienced engineers

We don't overwhelm you with technical language just for the sake of it. We explain the structure, the risks and the next steps in a way that's easier to act on.

Building advice for real homes

Practical advice tailored to your property, your plans and the way you want to use the space. From extensions and loft conversions to knock-throughs, we help you in the project.

Reports with purpose

Our reports are written to help you decide what to do next. You get useful detail that supports purchases, repairs, alterations and discussions with other professionals.

Exterior of a red brick church undergoing renovation with scaffolding erected along the side facade

What we offer

Exposed wooden ceiling beams inside a modern room

Residential structural engineering

We help you move home projects forward with practical designs for extensions, knock-throughs, loft conversions and structural alterations that make sense on site.

Residential Services

Steel frame structure of a large commercial building

Commercial structural engineering

From steel frames to mezzanine floors and specialist foundations, we support commercial projects with clear calculations and buildable design input.

Commercial Services

Short reports and condition surveys

We inspect buildings carefully, with transparent guidance and clear reporting for structural concerns, purchases and condition issues.

Condition Surveys

Level 2 and Level 3 surveys

We guide you towards the right survey for the property, helping you understand defects, risks and likely repair needs before you commit.

Level 2 & 3 Surveys

Buildings inspector with workman, surveying and pointing to part of the brick built structure

Party wall agreements

We advise building owners and adjoining owners on party wall matters, helping you understand and move forward with the right documentation.

Party Wall Agreements

Exhibition stand calculations

We provide structural calculations for exhibition stands over 3m, giving you the technical backing you need when your stand goes live.

Exhibition Stands

Engineering advice that keeps projects moving

Plans can stall fast when you need sound structural advice, and nobody explains things clearly. We've been doing exactly that since 1996, and Fast Calc Ltd has built its name on providing practical guidance, thorough calculations, and plans you can actually use. We know you don't want vague answers when a wall is coming out, an extension is going up, or a survey raises awkward questions. Our job is to make the technical side easier to follow and help you move ahead with more confidence.

Large residential house with glass extension and garden lawn

Construction worker wearing a hard hat installing a skylight window during a loft conversion

Jimbo Deano, Google

"Fast calc were fantastic they come and viewed the property exactly when they were supposed to did exactly what they were meant to do and I had the report exactly when they said I would have it. Faultless service I even called them a couple of times just a query something else regarding a job on doing and they were helpful then too! I recommend this business I would use again."

Why people trust us with important decisions

Established in 1996
Domestic and commercial support
Practical, buildable design focus
Clear reports that we make easy to understand
Help that respects your budget

Contact Our Experts

Trusted expertise for every project

Your project can feel heavy going when every answer seems wrapped in jargon or delayed by missing detail. At Fast Calc Ltd, we keep things grounded with domestic and commercial structural engineering, short reports, condition surveys, party wall guidance, exhibition stand calculations, and Level 2 or Level 3 surveys that tell you what matters.

Meet our team

Our experienced team combines technical expertise with practical engineering knowledge to deliver professional structural solutions for every project.

Managing Director / Principal Engineer

Brian Masters

He is a highly experienced structural engineer with BSc, MSc, CEng. and MICE qualifications. He leads projects, provides technical direction, oversees engineering standards, and delivers practical, innovative structural solutions for clients across diverse sectors.

Senior Engineer

David James

He is a skilled senior engineer with IEng and AMIStructE credentials. He supports project delivery through detailed structural design, technical coordination, problem-solving, and collaboration with clients and multidisciplinary teams to achieve successful outcomes.

Structural Engineer

Tony Walder

He is a structural engineer holding a BEng. (Hons.) and an ACABE qualification. He develops practical structural designs, prepares technical documentation, assists project delivery, and works closely with colleagues to provide efficient, compliant engineering solutions.