A loft conversion changes how your whole roof and floor structure works. The structural design determines whether it’s a straightforward job or an expensive one.

What a loft conversion involves structurally

Existing ceiling joists almost never work as floor joists. New floor structure, altered rafters, steel beams at ridge or purlin level, and stairs cut through an existing floor all need design and calculation. We survey the existing roof first, construction type, spans, condition, then design what your conversion actually needs.

Our loft conversion service

• Structural survey of the existing roof and supporting walls
• Beam and joist calculations for Building Control
• Advice on what your particular roof type allows, before you commit to a builder
• Inspections during the work if you want independent sign-off

Buying a house with a converted loft?

If the conversion has no Building Control completion certificate, an independent structural assessment tells you whether it was done properly, and gives your lender what it needs.

Why an independent survey matters

We are an independent firm of structural engineers, not tied to any estate agent, lender or builder. Our only job is to tell you the truth about the building. Established in 1981, we have inspected thousands of homes across Leeds and West Yorkshire, and our reports are accepted by mortgage lenders, solicitors and insurers.

What you get

• A clear written report in plain English, with photographs
• A definite answer: is it serious, is it historic, does it need monitoring or repair
• Repair recommendations and, where needed, outline costs
• Fast turnaround, reports typically delivered within days of inspection

We survey across Leeds, Wakefield, Bradford, Harrogate and all of West Yorkshire, see all areas and services.