Supreme Cooling Services

At TRJ Construction, we specialize in creating exceptional outdoor living spaces tailored to your needs. With years of experience and a commitment to quality, we offer a range of services, including bespoke granny annexes, garden rooms, SIP panel construction, and custom garden buildings. Our expertise in using sustainable materials and modern construction techniques ensures that your project is not only beautiful but also environmentally friendly and energy-efficient.

TRJ Construction Ltd designs, constructs and installs bespoke insulated garden rooms and modular buildings. Offerings include granny annexe and granny flats, garden offices, garden studios and art studios, home gyms, SIP panel construction, insulated buildings and custom garden buildings. Projects delivered across Hertfordshire, including Watford, St. Albans and Harpenden, with optional air conditioning.

Air conditioning and refrigeration contractors.