
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

