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

On a job, summer comfort often comes down to a single detail of placement. A well-sized roof overhang blocks high summer sun, limits overheating behind windows, and helps you keep your comfort promises without overloading the heating budget. In renovation, it's a protection that's simple to explain to the client, quick to price, and compatible with insulation and joinery. Well thought out, it improves in-use performance and saves you the "it's too hot" call-back the first summer.
6 min read

In collective housing, hot water quickly means large volumes, morning and evening peaks, and zero room for guesswork. As a tradesperson, your real strength is translating the building's actual usage into an installation that's well-sized, efficient and simple to operate. Here we cover field method, sizing benchmarks and pitfalls to avoid, to prevent both cost overruns and callbacks.
5 min read

In renovation, you're looking for reliable heating without dragging the client into a heavy job. By tuning heat production as precisely as possible, you gain comfort, limit on/off cycling and get the most out of existing emitters when they're properly sized. That gives you a simple, coherent solution that's easy to defend on the quote.
5 min read

Your ventilation jobs often come down to something invisible: indoor air. By adding an air-quality sensor to drive the mechanical ventilation, you automate the right flow rate at the right time, without over-ventilating or letting humidity settle in. The result: a cleaner setup, clients who notice the difference, and fewer callbacks for discomfort.
5 min read

When heating runs in an empty room, you lose kWh without seeing it. By controlling heat output based on actual occupancy, you improve comfort while cutting waste, especially in hallways, offices, bathrooms or rental homes. On site, the challenge is simple: choose the right location, set the delays and wire it up cleanly so it works day to day, not just on handover day.
5 min read

Before starting a renovation, you have everything to gain by checking the state of the wastewater treatment system on site. A well-run inspection avoids bad surprises during earthworks, connections or a sale, and lets you quote accurately from the outset. By clarifying non-compliance points from the start, you protect your schedule and your client relationship.
5 min read

A floor above an unheated space often means a cold-floor sensation that comes back every winter, and clients asking for concrete solutions. As a tradesperson, this is a simple lever to improve comfort without touching living rooms, provided you choose the right insulation and handle sensitive points like moisture and thermal bridges. With a clear method and a few good site habits, you secure long-term performance and avoid callbacks.
5 min read

On a job site, the choice of wood energy often comes down to practical questions: storage space, loading routine, and the level of automation the client expects. Between logs and pellets, you can steer the solution based on usage patterns, fuel access, and overall budget, without complicating the decision. By clarifying these points at the quote stage, you protect comfort, maintenance, and your margin.
4 min read

On a window-replacement job, everything gets decided in one visit. Condition of the building, plumb, clearances, interior finishes, sill, jamb linings and trim — you need to choose the method that holds up without extending the schedule. By asking the right questions from the measuring stage, you secure the airtightness, the performance and the client's satisfaction, while limiting plaster and paint rework.
6 min read

Indoor air quality is often decided at night. When a bedroom isn't properly renewed with fresh air, humidity and CO2 rise, and sleep becomes lighter and more broken. As a tradesperson, you can fix this without overengineering. Proper sizing, well-placed extract points, controlled flow rates and simple maintenance turn discreet ventilation into real nighttime comfort.
5 min read

On site, indoor air quality is often decided by the details. Glues, paints, panels and new furniture can release irritant pollutants, and your clients notice quickly. By installing properly sized and correctly adjusted ventilation, you deliver comfort, trust, and a real health benefit without complicating the project.
6 min read

In a house, the cold zone beneath living spaces can undermine comfort and drive up heating needs. As a tradesperson, the right choice is made on site: insulate the ceiling when you need to protect the rooms above quickly, or the walls when moisture and thermal bridges set the priority. With a few simple checks, you secure the solution and the job runs without surprises.
5 min read
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