JOSTEC LIMITED - Sustainability Consultant
JOSTEC LIMITED is a verified sustainability consultant, established for 15 years, serving London.
About JOSTEC LIMITED
JosTec (formerly RJ Acoustics) is a building regulations compliance specialist providing acoustic, energy efficiency, and testing services for residential and commercial developments. Founded in 2010, they offer comprehensive compliance solutions including acoustic design and consultancy, sound insulation testing, SAP/SBEM calculations, air tightness testing, ventilation testing, and energy efficiency services across England and Wales.
Their typical projects involve residential conversions and developments, working with housebuilders, developers, and architects to ensure building regulations compliance. Recent work includes care home conversions and house-to-flats conversions in London, with clients ranging from volume housebuilders like Taylor Wimpey to smaller regional developers. They provide both testing services and early-stage design advice to help clients pass compliance requirements first time.
Track Record
2+ planning projects · 1 councils served · Established 15 years · Active in 2025
Accreditations
Accredited by Association of Noise Consultants, Institute of Acoustics.
Services
Get a quote for Building Sound Insulation Testing, EPC / SAP Assessment, Energy Statement, Noise Impact Assessment from JOSTEC LIMITED.
Deliverables
JOSTEC LIMITED provides Air Tightness Testing, Energy Performance Certificate (EPC), Energy Statement, Noise Impact Assessment, Noise Mitigation Scheme, Overheating Assessment, SAP Assessment, Sound Insulation Design, Sound Insulation Testing, Water Efficiency Assessment.
Service Areas
JOSTEC LIMITED serves London.
Councils
JOSTEC LIMITED has worked with Ealing Council.
Browse more specialists: Sustainability Consultant, Acoustic Consultant.
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