Structural Engineering Services in London

Lenio Consultants provides two core services for property in Croydon, Sutton, London and across the UK: structural design and structural surveys. Our chartered structural engineers (ICE and CABE) take you from first concept to build-ready drawings, and diagnose defects in existing buildings, with clear advice and a fixed, no-obligation quote.

Service 01

Structural Design Services

Complete structural design and calculations for extensions, loft conversions, wall removals, basements and new builds, developed to the UK Building Regulations (Part A), Eurocodes and British Standards, and ready for building control.

Structural calculations for building control
Extensions, lofts & load-bearing wall removals
Steel (RSJ), reinforced concrete, timber & masonry design
Basements, underpinning & new foundations
Feasibility, value engineering & CAD/BIM drawings

Explore Structural Design

Structural engineer preparing structural design calculations in Croydon

Service 02

Structural Survey Services

Independent structural surveys by chartered engineers, diagnosing cracking, movement, subsidence and defects in existing property, with a clear engineering report that explains the cause, the risk and the remedy.

Pre-purchase structural surveys
Subsidence & structural movement investigation
Crack & specific-defect reports
Structural reports for mortgage lenders
Commercial structural surveys & inspections

Explore Structural Surveys

Chartered structural engineer carrying out a structural survey in Sutton

Who We Help

Who We Work With

We provide structural engineering for the people who plan, design, build and own property across Croydon, Sutton, London and the South East.

Homeowners

Clear advice and buildable designs for extensions, lofts, wall removals and surveys.

Architects

A reliable engineering partner who realises your design intent and keeps projects moving.

Contractors & Builders

Practical, coordinated calculations and drawings that are straightforward to build on site.

Developers

Efficient structural solutions for residential, commercial and mixed-use schemes.

Sectors

Sectors We Work In

Residential

Extensions, loft conversions, wall removals, basements, refurbishments, new homes and surveys.

Commercial & Mixed-Use

Offices, retail, hospitality and mixed-use schemes designed for flexibility and value.

Refurbishment & Heritage

Sensitive structural solutions for period, listed and conservation-area properties.

Lenio chartered structural engineers on site in Croydon

Why Choose Lenio?

Chartered Professionals (ICE, CABE)

Comprehensive QA Process

Fixed, Transparent Fees

Full Building Regulations Compliance

Based in Croydon, Local Expertise

Support From Enquiry to Sign-Off

Accreditation

Chartered, ICE & CABE Members

The Institution of Civil Engineers (ICE)

The Chartered Association of Building Engineers (CABE)

Good to Know

Services FAQs

Which service do I need, design or survey?

If you are changing a building, an extension, loft, wall removal, basement or new build, you need structural design and calculations. If you are assessing an existing building, worried about cracks, movement or subsidence, or buying a property, you need a structural survey. If you are not sure, call us and we will point you to the right service.

Do you cover Croydon, Sutton and the rest of London?

Yes. We are based in Croydon and provide structural design and structural survey services across Croydon, Sutton, the whole of London including North, South, East, West and Central London and every borough, as well as the wider South East and the UK.

Do you provide a fixed quote?

Yes. We provide a fixed, transparent quote before any work begins, with no obligation. Send us your drawings, a description of the works or details of your concern and we will quote quickly.

Are your engineers chartered?

Yes. Lenio is led by chartered engineers who are members of the Institution of Civil Engineers (ICE) and the Chartered Association of Building Engineers (CABE), so every design and survey is backed by recognised engineering standards.

Not Sure Which Service You Need?

Tell us about your project or concern and our chartered structural engineers in Croydon and Sutton will point you to the right service and provide a fixed, no-obligation quote.

Call +44 20 4558 8272 Get a Free Quote