COFETEC
Energy Efficiency Specialist and Technical Renovation advisor

Cofetec: Environmental and Energy Efficiency Expertise
COFETEC works in synergy with Apis in order to provide comprehensive energy audit services and technical project support for contracting authorities, property owners, asset managers, and users of existing buildings. As a result, our combined expertise ensures strategic solutions for energy consumption reduction and regulatory compliance in the evolving real estate market.
Our approach includes home energy assessments and building energy optimization strategies tailored to each property.
Moreover, to address the unique requirements of property owners and asset managers, COFETEC collaborates with a building services engineer specializing in thermal engineering to deliver in-depth building energy assessments and energy efficiency audits.
We work with all asset types, including commercial buildings, single-family homes, and multifamily residences.
Our Accreditations
We have the following certifications and accreditation:
❯ Notably, we hold OPQIBI Certification (19.05 & 19.11), authorizing us for regulatory energy audits and residential energy audits for single-family homes, multifamily, and commercial properties.
❯ Furthermore, we are accredited as “Mon Accompagnateur Rénov’”: We are recognized as an official advisor for energy renovation projects.
❯ Also, we are affiliated with “Coach Copro”: Partnered with the leading information and support platform for co-ownership energy renovation projects.
❯ Currently, we are in progress for accreditation as “ Mon accompagnateur copro ”.
Energy Efficiency and Technical Renovation advisory services
Our services are designed to support your energy related and technical projects:
❯ Energy audit services
Firstly, we provide comprehensive audits for single-family homes, multifamily residential buildings, and commercial properties. We conduct detailed energy assessments and evaluate various scenarios to identify optimal energy efficiency solutions and sustainable energy consumption reduction strategies with a focus on cost-effective technical solutions.
❯ Project management support
Furthermore, we provide project management support. Acting as Owner’s Representative or Project Manager for technical trades (excluding structural works), we guide the definition and implementation of energy efficiency upgrades for existing buildings, ensuring regulatory compliance and building energy optimization.
❯ Technical project support
We also deliver specialized technical project support and advisory for clients seeking advanced energy audits, works and building energy assessment expertise.
Our Commitment to Sustainable Buildings
Firstly, understanding the significant impact of buildings on national energy demand and carbon footprint, Alexandre MÉRAH (expert in construction project and contracting authority) and Loïc EUSTACHE (specialist in energy and technical solutions) have joined forces. Their intention is to deliver high-quality energy efficiency audits and consulting services focused on measurable energy consumption reduction.
Consequently, COFETEC’s mission is to support both private and institutional clients in enhancing the energy performance of their assets through comprehensive energy audits, building energy assessments, and technical advisory.
We offer a responsible, forward-thinking approach to today’s energy challenges, ensuring every client receives tailored energy efficiency solutions and compliance with the latest standards.
Meet Our Experts

Loïc EUSTACHE
❯ Engineer in Energy and Climate Systems ECAM-EPMI
❯ MSc in management Grenoble Ecole de Management
Selected References
❯ Rosny 2 Tower, 35,000 sqm high-rise: Energy Performance Certificate France (DPE)
❯ Multifamily buildings in Greater Paris and other regions: Regulatory energy audits and building energy assessments
❯ Single-family homes nationwide: Residential energy audits, home energy assessments, and DPE certification