Having had the opportunity to work closely for several years with Paul Arnell, I can attest to their exceptional professionalism, quality of work, and commitment to excellence. Thomas Callum Associates Ltd has consistently demonstrated their expertise and dedication in their respective fields. Their attention to detail and ability to deliver high-quality results are commendable. They possess in-depth knowledge and skills that are evident in the successful completion of tenders and their contributions to our business. Furthermore, I have been impressed by Paul's strong work ethic and reliability. They consistently meet deadlines and exhibit a proactive approach in tackling challenges. Their excellent communication skills and ability to collaborate effectively with us have contributed significantly to the success of our new projects. I highly recommend Thomas Callum Associates Ltd for any business or partnership. Their professionalism, integrity, and commitment to delivering exceptional results make them an asset to any organisation or project.

We have relied on TCA for many years, primarily for their estimating services. Their team is professional, timely, and responsive. Tendering can often be time-sensitive and complex, yet TCA consistently delivers efficient and accurate support. Their flexibility and willingness to revisit and tailor tenders ensures we can achieve the best possible outcomes, making their contribution truly invaluable.

In addition to their core services, TCA’s post-contract support has been exceptional. They assist with the valuation process, ensuring that staged payments are accurately calculated and received promptly. This service is critical in maintaining healthy cash flow and keeping projects on track financially, giving us confidence that payments are timely and correctly aligned with project progress

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. Mark then led us through finding a second contractor and was with us all the way and made sure that the project was completed in a reasonable time frame and to the correct standard. We would recommend the company to anyone who is considering a home building project to ensure that they have a successful outcome.

We at RM Construction have worked with Paul, Karen and the team for over four years now. They have provided us with estimating services over this period. We have no hesitation in the recommendation of the firm and their professional consultants. They have always returned tenders promptly and to a very high standard with a very useful amount of detail.

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.

We have worked with Thomas Callum Associates over the past couple of years, on several of our projects. They have provided us with commercial services such as procurement, interim valuations, variation assessment and submission, settlement of extension of time claims and final accounts. We have found them to be professional, timely and helpful. We have no hesitation in recommending their services.