Blog/Functional Economy: Paying for Comfort, Not Energy
RGE sector

June 28, 2026

5 min read

Functional Economy: Paying for Comfort in 2026 (Model, Innovation and Opportunities for Tradespeople)

Your clients don't just want equipment, they want comfort that holds up over time, with no bad surprises. By shifting from selling a product to selling a service, you can smooth out costs, secure performance and build recurring revenue, while staying concrete about installation quality and follow-up. It's another way to showcase your expertise, and often, to sell more simply.

Understanding the functional economy applied to home comfort

Moving from product to use: what "paying for comfort" concretely means

With the functional economy, the client doesn't "pay for a boiler" or "for insulation." They pay for an expected level of comfort. A simple example: a stable temperature, less humidity, a lower bill. Equipment still matters, but it becomes a means, not the end. The contract is mainly about usage, with ongoing monitoring.

Benefits for the client: controlled budget, peace of mind, measurable results

For the household, it's a predictable budget. Surprises go down. Maintenance, adjustments and small fixes are included. Results are measurable: consumption before and after, perceived comfort, air quality. The client gains peace of mind, because they know who to call and what you're committing to.

What this changes for you: a long-term relationship and service quality

For you, it's a longer, more stable relationship. You're selling a lasting service, not just a job. This pushes you to size, adjust and explain things better — and to build tools for follow-up. That's often where quality shows: over the following winter, not on handover day.

Choosing a viable business model to sell comfort rather than a job

Subscription, results-based fee, or performance contract: which model fits your projects?

For recurring interventions, the functional economy lends itself well to a subscription. You sell monitoring, adjustment and maintenance (heat pump, mechanical ventilation, controls). For a bigger renovation, a results-based fee works if you define a simple indicator — winter comfort, humidity, or post-work kWh, for example. A performance contract becomes viable once before/after measurement and monitoring are under control.

Defining the "comfort service": scope, limits, responsibilities and guarantees

Set a clear scope. What's included (tuning, visits, optimization, support). What isn't (occupant behavior, weather, work outside the package). Spell out responsibilities, insurance, response times, and the proper-operation guarantee. With a results commitment, frame the conditions for success and the evidence required.

Pricing without mistakes: real costs, margin, risks and revision clauses

Start from real costs. Job time, service calls, travel, measurement equipment, monitoring tools, subcontracting. Add a margin and a contingency provision. Protect yourself with revision clauses (construction cost index, equipment price increases) and an exit clause if the initial condition makes the target impossible.

Rolling out field-level innovation: packaged offers and day-to-day organization

Building a simple offer: insulation + heating + control + maintenance

To sell more easily, assemble a packaged offer with 4 clear building blocks. Insulation to cut losses, suitable heating, controls for fine-tuning, and maintenance to make it last. The idea is close to the functional economy. You're not just selling equipment, you're selling a level of comfort and controlled consumption, with a single point of contact.

Standardizing your steps: technical visit, energy audit, commissioning, follow-up

  • Technical visit. Surveys, photos, constraints, and preliminary agreement on the scenario.
  • Energy audit. Prioritize the work and lock in the logical order.
  • Commissioning. Adjustments, explanations for the client, and a startup report.
  • Follow-up. A call at day 30, then a check during the first winter if needed.

Training your teams and partners: service calls, maintenance, and RGE coordination

Give everyone a method. Service-call diagnosis, parts, lead times, and safety instructions. On maintenance, offer a contract with simple checkpoints. And secure RGE coordination. Who does what, what evidence, what signatures, to keep clean job traceability in case of an inspection.

Measuring and proving comfort: indicators, data and results commitment

Which indicators to track: temperature, humidity, consumption, air quality

To move beyond gut feeling, track 4 markers. Room-by-room temperature, aiming for stability around 19-20°C during the day. Relative humidity, generally more comfortable between 40 and 60%. Consumption (kWh, monthly readings) normalized to floor area and weather. And air quality, tracking CO2 and airing peaks.

Tools available in 2026: sensors, thermostats, readings and client reports

In 2026, a wireless temperature-humidity-CO2 sensor and a programmable thermostat are enough to objectify results. On consumption, rely on the smart meter, bills and a before/after table. In a functional-economy approach, your simple proof consists of graphs, screenshots and a clear, dated, signed client report.

Managing deviations: adjustments, continuous improvement and action plan

If the data drifts, you don't just accept it. Revisit the settings (heating curve, balancing, mechanical-ventilation flow rates), check for air leaks and usage patterns. Offer a tuning visit at day 30 and a short action plan. You show the way forward and stay in control of the result.

Financing and the 2026 framework: combining the functional economy, grants and compliance

Compatibility with MaPrimeRénov' and CEE: what works, what blocks, how to stay safe

Under the functional economy, grants mainly fund eligible work, not a subscription. What works: a quote that separates supply, installation and options. An RGE-certified company, with performance aligned with CEE technical sheets and MaPrimeRénov' requirements. What blocks: an "all-inclusive" price with no breakdown, a vague rental offer, or a file put together after the work has started. To stay safe: get eligibility validated upfront, keep the evidence, and frame the combination of MaPrimeRénov' and CEE.

Contracts and insurance: maintenance, liability, and intervention conditions

If you're selling a service, the contract needs to be airtight. Define maintenance levels, response times and risk allocation. Check your ten-year structural warranty (décennale) and professional liability insurance, and how subcontracting is managed. Specify site access, parts, and the conditions for bringing things back into compliance if a non-conformity is found.

Use cases by property type: single-family home, co-owned building, small commercial

Single-family home. Heat pump, insulation, then a clear maintenance contract. Co-owned building. Collective work, vote, coordination with the property manager, and harmonized supporting documents. Small commercial. Targeted actions (heating, controls, insulation) with savings tracking, keeping a "works" invoice separate from the service.

Key figures

€80-150

Monthly fee

20°C guaranteed

Temperature commitment

energy + maintenance

Included

Frequently asked questions

Favor 1 to 3 measurable indicators: indoor temperature (e.g. 19-21°C), relative humidity (40-60% RH) and normalized consumption (kWh/m²/year). Add a weather correction method (degree-days) and specify the occupancy window, otherwise occupant behavior makes the result impossible to compare. Plan a 2-to-6-week tuning phase before locking in the baseline measurement.

Louis Airy

COO of Argile

Further reading

RGE sectorJuly 25, 2026
District Heating Networks: How They Work and Their Benefits

When a job switches to district-scale collective heating, you often gain in operating simplicity and energy consistency, especially in major renovation. The principle is clear: centralised production feeds several buildings, and you mainly manage distribution, substations and balancing. For your clients, it means a more stable bill and fewer boilers to maintain, and for you, an opportunity to offer a clean, legible, profitable HVAC package.

5 min read

RGE sectorJuly 23, 2026
Refrigerant Log Book: The Traceability Requirement

On site, a leak sometimes comes down to a few grams, but it can cost you dearly if traceability isn't rock solid. A well-kept log book means less stress during an inspection, cleaner interventions, and a team that knows exactly what was added, recovered or replaced. Here's a rundown of what to record and the right habits to stay compliant, without unnecessary paperwork.

5 min read

RGE sectorJuly 22, 2026
Residential fuel cells: producing heat and electricity from gas

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

Reveal your expertise

One demo, and you see your expertise proven.

Contact us