Quantity Surveying & Construction Cost Consultancy

We tailor our services to your individual needs, find out more by clicking an option below.

About Us

Thomas Callum Associates are a team of highly skilled Quantity Surveyors, Estimators and Construction Consultants.

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Employer's Agent

The term 'Employer's Agent' is used to describe an agent acting on behalf of the client as the contract administrator for a specific form of contract known as design and build (See Contract Administrator details).  

Quantity Surveying Services for Construction Projects

Independent, accurate and transparent cost control from feasibility through to final account.

Contract Administration

In the construction industry, the Contract Administrator is the individual responsible for administering the construction contract. The purpose of employing a construction professional, is to give the employer the benefit of that professional's skill and experience.

Bill of Quantities (BOQs) for Accurate Tender Pricing

Clear, measured BOQs that help contractors price tenders consistently and give clients confidence in the scope and cost of their project.

Procurement in London & the South East

Prepare documentation to enable detailed enquiries to be received from your supply chain. Equally we can offer a number of preferred suppliers in a number of areas.

Estimating Services in London & the South East

Fast, accurate estimating, BOQs and take‑offs to help contractors and sub-contractors win work and deliver projects confidently.

Here are what some of our customers have to say:

Neil Shah
Woodberry Down Dental Practice

Since working with Mark, the stress of this project has significantly reduced as I know my best interests are being looked after. Mark's experience has helped us to have hindsight and navigate issues before they become larger problems. Mark has always been very responsive and easy to communicate with.

Mr and Mrs Baldwin

‘We employed Thomas Callum Associates when we were having a bad time with some building contractors who took us for a ride and eventually went into receivership. We feel
that if Mark had been involved from the start of the project we would not have ended up in the same situation.

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