Louis Meneteau

On a job site, a few millimetres often make the difference between a satisfied client and a callback. Between a basic solution, a high-performing standard or a very insulating option, you need to decide fast, based on exposure, noise and budget. With the right benchmarks, you save time on quotes and secure the result.

5 min read

On a job site, energy performance often comes down to details. Heating, ventilation, lighting, setpoints, schedules—everything can be controlled from a single interface, provided the right sensors and automation are in place. For you, as a tradesperson, this is a concrete lever to deliver the announced performance, limit drift and prove results to the client, without spending your days adjusting each piece of equipment one by one.

5 min read

A ducted system comes down to three things the client never sees: the room-by-room heat-loss calculation that sets the flow rates, the acoustics at the diffuser, and access in the roof space or dropped ceiling for maintenance. Miss one of the three and handover turns into callbacks. Here is what you record on the technical visit, what you write on the quote, and what you log in the commissioning report.

5 min read

A heat-loss survey does not produce an opinion about a dwelling, it produces a number: the heat loss D of the heated volume at the base temperature, in watts. That number then governs the admissible output of the machine, and a note that does not present it room by room is worthless in a dispute. Here are the terms to calculate, the three formulas, and the mistakes that skew the total.

5 min read

A poorly treated thermal bridge is often just a few metres of junction ruining an otherwise good insulation job. On site, knowing how to estimate these losses in the right place helps you prioritise rework, justify a solution, and avoid bad surprises at the airtightness test. With a simple method and clear orders of magnitude, you save time and credibility with the client.

5 min read

On a ground floor, the right choice is often decided on site, not on paper. From below, you save time if the crawl space or basement is accessible. From above, you secure the finished floor level and the thermal bridges, provided you anticipate thresholds, doors, and services.

5 min read

On a facade, colour isn’t just a style choice. It’s also a concrete lever to limit overheating, improve summer comfort, and cut down on complaints about rooms that get too hot — without touching the insulation. As a tradesperson, you can guide your clients toward a colour choice suited to the climate, the orientation, and the job site’s constraints, with a result that’s visible right away.

5 min read

On site, the framing material quickly changes the game for insulation. With wood, you manage thermal bridges and repairs more easily, while with metal, you need to anticipate much stronger conduction and more demanding airtightness details. By setting the right habits from the design stage, you secure performance and avoid callbacks.

5 min read

When you treat a wall, it's not only the insulation thickness that matters. How the surface exchanges heat through radiation can change how a room feels, limit cold-wall effects and improve comfort without adding to the job. Understanding this parameter and its effect on finishes helps you make safer choices, explain things better to the client, and avoid vague promises about the expected 'gain.'

5 min read

When you're estimating heat loss on a project, pitch changes the picture. For the same ground-level footprint, the actual exposed surface area increases, and your measurements, choice of insulation and quantities need to follow. By getting the right factor from the outset, you protect the quote and avoid discrepancies at the end of the job.

6 min read

On a renovation quote, the right figure in the right place can make all the difference. Understanding how a home's consumption translates into the equivalent used by calculation methods helps you explain your choices, size correctly, and avoid endless discussions. In short, you keep control of the announced performance, and of the client's trust.

5 min read

A poorly treated rafter, and the whole loft's performance collapses. On site, you're working three very concrete levers: continuity of the layer, careful airtightness, and moisture management without traps. With the right method, you save time during installation and limit callbacks for discomfort or condensation.

5 min read

Between what clients call "living area" and what you actually heat, there are often a few square metres of difference. And that gap can change a heat pump's sizing, the choice of emitters, or the cost of insulation. By setting the right calculation method right from the quote, you secure performance, budget, and avoid arguments at the end of the job.

5 min read

Thermal resistance is the one number that decides whether an insulation job qualifies for funding, and the thresholds are set element by element in the scheme rules. Two clauses tend to be discovered too late: the resistance of the insulation already in place does not count towards the total, and a clear waiting period separates acceptance of the quote from the first day of installation. Here are the exact thresholds, the standards that assess them, and the deadlines to know.

6 min read

On a 1960s house, your good choices often come down to two visits. A first to spot heat leaks and the "easy" items, a second to lock in a work order that avoids rework and disputes. With a simple method, you save time on site, and your clients quickly see the difference in comfort.

5 min read

On a job site, the bags fill up fast. By sorting from the start, ordering more precisely and reusing what can be reused, you cut down on trips, skip-hire costs and the mistakes that eat into your margin. The payoff: a cleaner, smoother job site, and a client who notices the difference.

5 min read

When you install a heat pump, the electrical connection can quickly make the difference between a smooth commissioning and a project that drags on. Power to plan for, protections at the consumer unit, meter rating, all of it needs clear figures to size things right, without extra cost or nuisance trips. Here, we put the key points back in the right place, with concrete benchmarks for your quotes and your checks.

5 min read

Low carbon in a retrofit is not proved by argument, it is proved by paperwork: an EPD to BS EN 15804 for the product, delivery notes, and a waste trail that stands up. And the waste trail is not optional. The duty of care under the Environmental Protection Act 1990 requires an accurate written description of every load and a transfer note kept for two years, three for hazardous waste.

5 min read

On a solar hot water job, the right collector is the difference between an installation that runs all year and one that disappoints the moment it turns cold. Flat-plate glazed or evacuated tube, the real trade-off is between ease of installation, cold-weather performance and budget. Clarifying these points at the quote stage protects your performance and your client's satisfaction.

5 min read

On site, a wall’s U-value is often what separates a solution that “just about works” from one that truly holds up. As a tradesperson, you need a fast, reliable calculation, even when the wall composition changes from room to room or you have to choose between two thicknesses. Here we show you a simple method, with clear tables, to get a clean U-value without spending the whole evening on it.

6 min read

When a client wants to heat the house and produce hot water with the same installation, you're the one who has to quickly separate promises from job-site reality. With the right configuration, you can aim for concrete savings on the bill, without complicating maintenance or overloading the boiler room. Here's a rundown of the choices that really matter, from sizing to connection.

5 min read

Your customers want to use their solar electricity in the evening, without depending on the grid. With a properly sized home storage system, you turn a daytime surplus into real comfort and visible savings. The right choice hinges on usage, power demand and available space, not on a marketing promise.

4 min read

With stone walls, you don't play sorcerer's apprentice. For you as a tradesperson, the real challenge is keeping the wall healthy, without blocking moisture or creating hidden condensation, while still gaining comfort. Before choosing a build-up, check the condition of the joints, rising damp, and ventilation. A good solution respects the "breathability" of the old building, and saves you from costly callbacks.

5 min read

On a poorly set domestic hot water (DHW) system, the health risk arrives fast. As a tradesperson, your value is delivering safe hot water production without overconsuming or tweaking settings blindly. Temperature, heat maintenance, circulation, draw-off points, every detail matters on site and in maintenance. With a clear method and robust settings, you secure the installation and avoid callbacks.

5 min read

When a heat pump keeps short-cycling, efficiency drops and wear speeds up. By adding a properly sized volume of storage water, you smooth out the cycles, stabilize the flow temperature and gain comfort, without tinkering with the controls. Getting it right comes down to a few simple choices, set from the moment of installation.

6 min read

A well-written diagnosis is often what turns a quote from "maybe" into "let's do it." As a tradesperson, you save time when the document is clear, well organised, and talks about the actual home rather than a theoretical case. Customisation is the small extra that reassures the client and protects your job.

5 min read

Between available space, truck access and dust you'd rather avoid, fuel storage is often decided down to the centimetre. As a tradesperson, planning the usable volume, the flow slope and the feed path to the boiler from the start saves you time and callbacks. A few simple choices in the right place, and the installation becomes reliable, clean and easy to maintain.

5 min read

R290 is propane. It is not a fluorinated greenhouse gas, so it sits outside the quotas in Annex VII of EU Regulation 2024/573, outside the leak checks in its Article 5, and outside the French regime of Articles R543-75 and following of the environment code. The trade-off is safety class A3: the charge allowed per room comes from the manual, not from a forum.

6 min read

When water builds up at the foot of the walls, it's your foundations that take the hit: cracks, efflorescence, odours, and callbacks down the line. As an installer, you can secure the job from the design stage, with a water-drainage layout planned around the terrain, the slopes and the low points. Properly sized and properly installed, it's a small package of work that prevents big problems, and makes the difference over the long run.

5 min read

Low-temperature underfloor heating is sized under two ceilings, not one: the surface temperature of the finished floor, and the flow water temperature. Everything else, spacing, active area, water regime, exists to keep the required output under those limits. Here are the referenced figures, the screed cover thicknesses to respect, and what belongs on the quotation before the first pipe goes down.

5 min read