Sovereign Building Management & Consultancy

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Overview

Operates in Mill Hill
Posting since 2025

Portfolio

Services

General Builders

Property Extensions

Garage Conversions

Loft Conversions

Conservatory Installation

Garage & Outbuilding Construction

Porch Installation

Description

At Sovereign we believe that building your dream project should be an exciting journey, not a daunting challenge. With over 30 plus years of industry expertise, we bring together the best in design, project management, and construction expertise to ensure that your project is delivered with uncompromising quality and efficiency—every step of the way.

Our approach is simple yet powerful: we work as your dedicated ally, guiding you through every stage of the process, from initial planning and design to the final brick laid. Our focus is always on delivering excellence—tailoring each project to your unique needs and vision, while ensuring that every detail is meticulously managed.

With a wealth of industry connections and a deep understanding of the best materials and suppliers, we guarantee not just a professional service, but also a more efficient, cost-effective approach. This means that you receive exceptional quality at every stage, while we handle the complexities—allowing you to focus on what matters most: your vision and peace of mind.

Ad ID: 8832132096

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Reviews (2)

Please note: any reviews provided by our partner, Bark are not managed or verified by Gumtree.

5.0out of 5

2 reviews

John and Carole Barlow

28 January 2025

We contacted Sovereign Building Management to resolve a problem with damp and drainage. The project management explained clearly and in detail what needed to be done and kept us informed every step of the way. The workmen were polite ,considerate and hardworking and arrived punctually every day. The job was completed on time and on budget. We are very happy with the standard of the work.

John and Carole Barlow

26 January 2025

We contacted Sovereign Building Management ro resolve a problem with damp and drainage. James explained clearly and in detail what needed to be done and kept us informed every step of the way. The workmen were polite and considerate and arrived punctually every day. The job was completed on time and on budget. We are very happy with the standard of the work.

Janet and Steve Duggan

24 January 2025

James Koumis’ company carried out work on our house extension. Mr. Koumis worked to the highest professional standards, preparing his schedules and instructing his team. He was well-organised, hardworking, pleasant, skilful, punctual and expected good work ethics from his team - which was achieved. Our architect, Richard Lloyd, had put forward James Koumis as a possible choice for our extension. We were impressed with his knowledge, detailed assessment of the work to be done and his enthusiasm so we appointed him as project manager. Mr. Koumis made proper use of the plans and discussed everything with us. He explained clearly what was being done every step of the way. He took us to different builders’ merchants to select the most appropriate materials at the most competitive prices which included all materials in our extension project. We have no hesitation in highly recommending James Koumis and his team who achieved excellent results in all aspects of their work. We could not be more pleased with our lovely extension.

Kate

22 January 2025

What a relief it was to find a company whom I really felt I could trust. From the start I was given sound advice in the form of guidance and always with respect for my wishes. The excellent work was carried out by experienced tradesmen whom also reflected the business ethos of respect. I was so delighted that in a matter of days the jobs were complete but unlike with previous tradesmen , I was almost sorry to see them leave.

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