Immaculate from the very beginning

The definition of immaculate is 'perfectly clean, neat or tidy' and 'free from flaws or mistakes'. 'Immaculate' has been BOK's guiding principle and is the reason for its success today.

Immaculate people and process

Immaculate results demand quality people, quality work processes and quality service standards. This is the secret of BOK's 98% success rate on timings and the reason for our visibly superior outcomes.

Immaculate quality assurance

We submit every job to two snagging checks before allowing it to be seen. This approach, along with strict observance of timings, ensures an almost perfect snag-free delivery rate (94%) and guaranteed 'wow factor'.


BOK was established by Constantin Boca, with the primary objective of providing quality trade professionals to the UK construction industry. Initially run by a small team of family members, the bulk of the work in the early days was painting and decorating contracts in the commercial and retail sectors.


Constantin’s commitment to quality workmanship, consistently meeting tight deadlines and cultivating the skills of his workers, soon saw growth in the business, with expansion to more substantial fit-out operations, including dry lining, partitioning and installation of suspended ceilings


BOK has grown and diversified, enabling bigger, more complex fit-out and refurbishment contracts, which include brick and block, plastering and screeding, partitioning systems, suspended ceilings, carpentry and joinery, floor and wall tiling, painting and decorating and small/special works. A high rate of repeat business testifies to our ongoing success in meeting clients' objectives.

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