What is the cost to renovate the heating of a 120m2 house in 2025?
The renovation of the heating system in a 120 m² house is a crucial process that can incur significant costs. In 2025, the stakes related to energy efficiency have never been more present, and it is essential to properly evaluate the different options available. At the heart of this issue, the choice of equipment, the necessity to hire qualified professionals, and the available financial aid can lead to variations in price. This article guides you through the various facets of heating renovation for a 120 m² house, while providing you with keys to manage your budget.
Assessment of Renovation Needs for Heating
Before embarking on the renovation of the heating system, it is essential to assess the specific needs of your home. A 120 m² house can have different configurations and orientations, thus influencing heating needs.
Analysis of Your Home's Configuration
Each house is unique. The first step in renovating your heating system is to understand the layout of the space, its insulation, and the different heat sources.
Thermal insulation: Check the insulation of walls, the roof, and the floor. A well-insulated house requires less heating.
Orientation: The geographical orientation of your house can influence the heating needs, especially depending on sunlight and prevailing winds.
Current heating type: Identify the existing heating system (boiler, electric, oil) and its efficiency.
Choosing the Heating System
The choice of your heating system will have a direct impact on the renovation cost. In 2025, several options are available to you.
Gas boilers: Models from brands such as Bosch, Viessmann, or De Dietrich are particularly reliable.
Electric heating: Although often more expensive to use, newer equipment can optimize consumption.
Renewable energy systems: Heat pumps, solar thermal energy, or biomass boilers (particularly recommended by Ferroli or Saunier Duval) are interesting alternatives.
Cost Assessment for Renovation
Now, let’s move on to the financial aspect. The costs of renovating a heating system can vary widely depending on the type of equipment chosen, its energy performance, and labor charges.
Type of Heating | Installation Costs (approx.) | Annual Operating Costs |
|---|---|---|
Gas Boiler | 3,000 - 6,000 € | 800 - 1,200 € |
Electric Heating | 2,000 - 4,000 € | 1,500 - 2,000 € |
Heat Pump | 6,000 - 12,000 € | 400 - 800 € |
Financial Aid for Heating Renovation
In 2025, various government aids and subsidies are available to reduce the cost of your energy renovation project. These mechanisms can alleviate the financial burden associated with improving your heating system.
Zero Interest Eco-Loan (PTZ)
The PTZ is a grant that allows financing for energy renovation without interest. It is aimed at all homeowners, subject to certain resource and eligibility conditions.
Renovation Bonuses
Energy renovation bonuses such as those offered by Engie and EDF can represent significant assistance.
Energy Bonus: This grant is available under certain conditions and varies based on the work performed.
MaPrimeRénov’: Managed by ANAH, it directly finances energy renovation work.
Available Aid | Eligibility Conditions | Maximum Amount |
|---|---|---|
Owner-occupier | 50,000 € | |
MaPrimeRénov’ | Owner-occupier or landlord | temporary |
Energy Bonus | Heating renovated according to standards | From 1,000 € |
Practical Tips for Optimizing Your Heating Renovation
To optimize the cost and efficiency of your heating renovation, here are some practical tips to consider.
Establish a Detailed Plan
Before starting the work, develop a plan that outlines each step of the renovation. Identify the elements that need updates and those that can remain unchanged.
Consult Experts
Hiring a professional can provide valuable advice and help avoid costly mistakes. Engage reputable plumbers and heating engineers.
References: Check client reviews and previous accomplishments.
Quotes: Request multiple quotes before making your final decision.
Plan for Regular Maintenance
Once your heating system is renovated, ensure to schedule regular maintenance. This will help not only ensure its proper functioning but also prolong its lifespan.
Annual Inspection: Have your equipment inspected every year.
Cleaning and Maintenance: Remember to clean reactive components and replace worn parts.
FAQ
What is the average cost to renovate heating in a 120 m² house?
The cost can range between 3,000 and 12,000 €, depending on the type of heating chosen and the necessary work.
What financial aids are available in 2025 for heating renovation?
In 2025, homeowners can benefit from aids such as the zero-interest eco-loan, MaPrimeRénov', and energy bonuses offered by Engie and EDF.
What type of heating is the most economical in the long term?
Renewable energy systems, such as heat pumps, are often more economical in the long term according to energy evaluation criteria.
How to choose a professional for my heating renovation?
It is advisable to check customer reviews, request multiple quotes, and prefer professionals with solid references.