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Regulation, field practice and tools: our analysis to help renovation professionals sell and deliver energy retrofits.

On a job site, a renovation's impact also comes down to the materials you install, not just the kWh saved. With LCA (life cycle assessment), you have a simple method to compare two solutions, settle a debate with the client, and justify your choices without getting lost in spreadsheets. It's a way to steer your quotes with more clarity, and fewer pointless arguments.
5 min read

In renovation, your choice of materials can weigh heavily in a project's overall footprint, sometimes as much as the energy used while living in the home. Between insulation, joinery, systems and finishes, you have the ability to compare, arbitrate and clearly explain to your clients what really counts. With a simple method, you secure your decisions and showcase your expertise.
4 min read

An energy performance guarantee is not a turn of phrase on a quote, it is a contract with a defined content. The French order of 24 July 2020 requires a baseline built on at least three consecutive calendar years, expressed in kWh per year and adjusted for external factors, a savings target expressed as a percentage of that baseline, and a financial penalty tied to the gap actually measured. Here are those elements, and what they change about your exposure.
5 min read

When your clients want to cut their bill without changing all their habits, the electricity-gas duo often ticks the right boxes. You keep stable comfort, you adapt output to cold days, and you offer a solution that works well in renovation, even when the home isn't ready for 100% electric. A way to move forward without setbacks or bad surprises at start-up.
5 min read

After a job, your clients want simple proof that it works. By tracking a few concrete indicators — temperature, humidity, consumption — you turn the feeling of comfort into legible results, useful for settling doubts and showcasing your work. With a lightweight method and regular readings, you quickly spot a setting that needs fixing, ventilation that's too weak, or usage that's skewing the announced savings.
5 min read

When the budget is tight, every quote counts, and it's often you, the tradesperson, who makes the difference between a renovation that's merely endured and one that delivers real comfort. By asking the right questions, prioritising the work that matters, and guiding the household step by step towards funding and good practices, you secure both the job site and the client's trust. The result is fewer hesitations, faster decisions, and renovations that deliver on their promises in the field.
5 min read

In a low-energy or new-build home, a wood stove runs into its minimum output long before it runs into its efficiency: a high-performance envelope calls for 2.5 to 3.5 kW over 100 m² when the smallest log stove on the market delivers 4 to 5 kW at rated output. A room-sealed appliance solves the second problem, the combustion air a tight dwelling no longer supplies through its own defects.
5 min read

Between incoming calls, quotes that need following up, and job sites to keep on track, prospecting is often the last thing on the list. Yet when the pipeline dries up, the whole organisation takes a hit. The idea here is to give you a simple method, from first contact through to installation, to secure a steady flow of qualified leads.
5 min read

A high-performing envelope is often decided by details. For you, the tradesperson, the real difference happens at the junctions, around window frames, at the base of walls or in the roof, where breaks let heat escape and complicate airtightness. By securing continuity all the way around, you gain comfort, compliance, and calmer client follow-ups.
5 min read

With lukewarm-water emitters, every watt counts. On site, oversizing can secure comfort during cold snaps, but it also means more bulk, more inertia, and sometimes a network that needs adjusting. By mastering power calculations, flow temperature, and balancing, you size things right and avoid callbacks.
5 min read

Your client has a fireplace that heats poorly and burns through fuel. By modernizing it with a pellet appliance, you gain in comfort, consistency, and cleanliness, without starting from scratch. With a well-prepared installation, you secure the flue, simplify daily use, and add value to the job in your clients' eyes.
5 min read

In renovation, the junctions between walls, floors, and window openings often make the difference between a "clean" job and one that comes back to haunt you six months later. By getting these details right from the site visit onward and coordinating them across your trades (insulation, airtightness, finishes), you secure performance, comfort, and above all your own peace of mind. Here we go straight to the point — the checks to run and the mistakes that cost dearly.
5 min read
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