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

When a hydraulic network is poorly sized, the pump strains, flow rates drift, and you spend more time adjusting than installing. By identifying the points that restrict circulation, you secure comfort, noise levels and consumption right from commissioning. A few simple checks on lengths, diameters and fittings are often enough to get the job back on track.
5 min read

When your customers spend more time at home, heating, hot water and electrical usage climb quickly. As a tradesperson, you can turn this new routine into concrete jobs, adjustments, insulation, ventilation, controls, that improve daytime comfort without sending the bill through the roof. The payoff: simple, quantified recommendations that are easy to explain and sell.
5 min read

On a job site, a few millimeters of error when installing a window are enough to create a heat leak that undermines the final result. By choosing the right position within the wall and taking care with the connections (reveals, sill, sealing), you limit thermal bridges without complicating the installation. The result: a higher-performing renovation, and a client who feels it from the first cool nights.
6 min read

When a client asks you for a quick estimate, you don't have time to redo ten calculations by hand. With automated calculations, you gain consistency, limit oversights, and can move faster from the site survey to a clear proposal. The idea is simple: you keep control of the assumptions, and the tool does the heavy lifting, always the same way. The result is fewer back-and-forths, and technical decisions that are easier to justify to the client.
5 min read

A tree that grows, a poorly placed chimney, and a whole installation can end up disappointing at the meter. As a tradesperson, you have the ability, right from the site visit, to spot shaded areas, anticipate how they will evolve and avoid unpleasant production surprises. A few simple checks are often enough to secure both performance and the customer.
5 min read

When you need to lay a floor covering without adding weight to the structure, dry screed can save a job, especially in occupied renovation. It goes down fast, with little water, and cuts the waiting time before the next trades start. What's left is managing thickness, flatness and special points correctly to keep underfloor heating efficient and free of bad surprises.
5 min read

A renovation that "works" shows up on the bills… as long as you compare like with like. By setting up simple, regular readings (heating, DHW, ventilation), you turn the client's impressions into concrete proof, and you quickly spot a setting or a habit that's eating into the gains. It's also a great way to showcase your work, without jargon or an over-engineered system.
5 min read

On site, you see it right away. A well-fitted window isn't enough if the shutter lets in air or cold. By addressing this often overlooked point, you improve comfort, limit draughts, and secure the insulation's performance, without complicating the job.
5 min read

Turning a steel structure into a home is a real challenge for comfort. As a tradesperson, you're staking a lot on insulation, thermal bridge treatment and moisture management — otherwise the shell heats up and cools down at breakneck speed. With a simple method and the right materials, you gain performance without overloading the job.
5 min read

When a heating network is poorly balanced, you see it on site right away. Some rooms overheat, others stay lukewarm, and the boiler or heat pump runs harder than it should. By fine-tuning how flow is distributed, you restore even comfort and secure the installation's real performance. It's also a genuine plus for your initial settings and for client satisfaction.
5 min read

On a renovation job, the right decision often hinges on a single assumption. To save time and secure your margins, compare several options for work, budget, and schedule, and see right away what holds up. When the client hesitates, you stay in control with a clear view of the impacts. You move forward with more confidence, and turn uncertainty into concrete choices.
5 min read

Gaining square meters without touching the plot is often the best option when your clients want to expand quickly, in a dense area. A timber-frame solution helps you stay light on the existing structure, limit reinforcements and keep realistic deadlines, all while improving the building's insulation. That secures both your job and your margin, without turning the neighborhood into a crane field.
5 min read
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