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

Producing heat and electricity at the customer's home, continuously, without complicating your life — that's a promise worth examining closely. On site, this type of system changes the game on sizing, connections and plant-room space, with some very concrete points to watch. If you're aiming for a coherent, RGE-compliant renovation, you save time by clarifying usage, available fuel and maintenance level from the outset.
5 min read

On a heat-pump installation, vacuum evacuation isn't a luxury. It's what drives out air and moisture before charging, to avoid faults that always strike at the worst moment, and to protect the compressor, expansion valve and oil. By mastering this step, you save time on callbacks, stabilise performance, and deliver a clean commissioning with no bad surprises.
5 min read

At the window-to-wall interface, small leaks end up costing a lot in comfort and job-site reputation. As a tradesperson, you control the right reflexes, insulation continuity, careful sealing, suitable reveal linings, to deliver a clean, durable installation. And above all, you plan ahead from removal, before the finishes hide the defects.
5 min read

When your clients want to cut their bill without adding a complicated system, capturing the sun with a well-designed wall can make the difference. This simple principle turns an exposed wall into a heat reservoir that slowly releases warmth into the home, especially in mid-season. With the right design and installation habits, you gain a concrete, low-tech, durable selling point on your jobs.
5 min read

When a client is still hesitant about renovating, keep it simple. A better-insulated, better-heated home means lower bills and a property that sells faster, often at a better price. For you, the tradesperson, that's a clear argument to put in the quote. You're not just selling works. You're securing the property's value, from the first viewing right through to resale.
5 min read

On a refrigerant connection, poorly prepared brazing can wreck the tightness of the joint, and you often only find out too late, at commissioning. With a few simple steps — protection against oxidation, clean tubing, controlled heating — you secure your joints and save time on site. The idea is clean, durable work, and a client who doesn't have to call you back over a leak.
5 min read

When the volume of water heats up, it expands, and that's often where problems start: rising pressure, a valve spitting water, callbacks. As an installer, choosing the right vessel capacity secures the installation from the moment it's filled and avoids repeated adjustments on site. Here's a simple method, with the right parameters to record, for sizing correctly without oversizing.
5 min read

In a renovated home, what people actually feel doesn't come only from the number on the thermostat. It's the balance between heat and humidity that makes the difference, especially once insulation and airtightness step up a level. As a tradesperson, you can help clients avoid rooms that "heat up but still feel cold," windows that bead with condensation, and air that leaves people tired. With a few good settings and the right material choices, you make the result visible — and above all, pleasant to live with every day.
5 min read

Before filling a network with water, a well-run tightness check saves you bad surprises on site. It's a simple step, but it secures handover, limits rework, and protects your reputation with the client. With a clear method and concrete checkpoints, you save time and hand over the job with peace of mind.
5 min read

On a condensing installation, an undersized condensate drain quickly turns into a callback for odour, overflow or a safety lockout. As an installer, you save time by getting the drain right from the start — simple, accessible, and sized for the real flow rate, slope and frost risk. A few clear choices, and your commissioning visits go by without a callback.
5 min read

When a home stays too cold, the occupants soon pay the price. Discomfort, moisture that sets in, greater risk for the most vulnerable, and ultimately habits that push the bill up to compensate. As a tradesperson, you can make a simple diagnosis and guide clients toward the right habits and the right work, without shifting the problem elsewhere.
5 min read

When a system needs to be shut down for water, everything comes down to one simple point: being able to cut off and drain quickly, without flooding the site. As a tradesperson, you save time with a few regular checks, a firm shut-off, a leak check, and a quick clean of the mechanism. The result: fewer callbacks, and cleaner repairs, even in an emergency.
5 min read
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