Energy audit in Oise (60)
An energy audit in Oise (60) makes it possible to analyse how a property actually performs before planning work. It is not limited to recording the equipment already in place: it also examines the building fabric, heat loss, ventilation, heating and the interactions between the different elements. In the department, this approach is particularly useful for distinguishing the needs of a detached house built since the 1980s from those of an older stone property. The aim is to prioritise the work and build coherent scenarios suited to the existing building.
Tip: have your energy performance certificate (DPE) and energy bills to hand for a more accurate estimate.
Why carry out an energy audit in Oise
In the detached housing areas in the south of the department, the analysis often highlights several combined issues: ageing loft insulation, air leakage around hatches or ducts, inadequate ventilation and an older heating system. The audit helps distinguish what should be dealt with first from what can wait. This prioritisation avoids, for example, replacing a boiler before assessing how improvements to the building envelope will affect future heating needs.
In the north and east of Oise, older buildings require closer examination of the walls and damp. A stone wall affected by rising damp should not be treated in the same way as a modern wall. The audit is then used to incorporate these constraints into the proposed scenarios, particularly where the external appearance limits the available options. The climate in Hauts-de-France also increases the value of a precise analysis of the heating system and the behaviour of the walls during colder periods.
What an energy audit includes
Analysis of the building envelope
An energy audit examines the walls, roof, floors, windows and the main junctions between these elements. Their nature, apparent condition and level of thermal protection are taken into account. This assessment helps identify the areas responsible for the greatest heat losses and those requiring particular care before any work is undertaken.
Assessment of heating and hot water
The heat generator, its apparent age, the distribution system, radiators and controls are included in the analysis. Hot water production is also considered separately. The aim is to understand how the equipment meets the current needs of the property and to avoid recommending replacement without taking account of planned improvements to the building envelope.
Checking the ventilation
Air renewal forms part of the overall assessment. Air inlets, extract vents, ducts and any apparent operating problems are examined. This stage is important when a project includes improvements to the loft, walls or windows, because making the building envelope more airtight changes the uncontrolled air movement that previously occurred.
Identifying building constraints
An older property may have damp, mixed wall constructions, finishes that are poorly suited to the masonry or a façade whose appearance needs to be preserved. These factors influence the solutions that can be considered. The analysis therefore does not consist solely of comparing theoretical performance: it must reflect how the building is constructed and how its walls behave.
Developing work scenarios
Possible improvements are grouped in a logical order to show how they interact. One scenario may begin with loft treatment and ventilation before addressing the heating system. Another may include older walls requiring a specific method. This organisation helps compare renovation pathways without artificially separating each element from the rest of the building.
Typical situations in Oise
Detached house with ageing loft insulation and an old boiler
The analysis may show that part of the heating demand comes from the building envelope rather than the heat generator alone. The scenario can then examine the loft, air leakage and air renewal before considering replacement of the heating system. This sequence makes it possible to size future equipment on a more coherent basis.
Stone village house with signs of damp
In Oise, this type of property requires heat loss to be distinguished from problems linked to moisture within the walls. The audit should take account of the possible source of the damp, the type of finish and the ability of the walls to allow water vapour to move before proposing an internal improvement solution.
Property where several elements need to be renovated
When the windows, heating, ventilation and some walls all need attention at the same time, the order of the work becomes important. The analysis helps avoid conflicting decisions, such as installing a heat generator sized for current needs and then significantly reducing heat loss during a second phase.
Grants and funding
Depending on the project and the applicable conditions, an audit may form part of a pathway involving MaPrimeRénov’, CEE (energy savings certificates), reduced VAT or éco-PTZ (zero-interest eco-loan) where the associated work meets the relevant criteria. Some grants or pathways impose specific requirements concerning the assessment or the professionals involved. The use of an RGE-certified professional may also be required for work supported by certain schemes.
You can contact us to prepare the assessment of the property and clarify the areas you are considering improving. To check the official conditions relating to grants, renovation pathways and any applicable obligations, also consult France Rénov’ before starting the relevant procedures.
How we work
Collection of information
We gather the characteristics of the property, the equipment already in place and any improvements already being considered.
Assessment of the building
We analyse the main walls, openings, junctions and any particular constraints associated with the construction.
Assessment of equipment
We examine the heating, hot water, controls and ventilation to understand their role in the overall performance of the property.
Development of scenarios
We organise possible improvements into coherent groups and in an order that is compatible with the building.
Presentation of priorities
The results help identify which improvements should be considered first and which depend on earlier stages.
Our other services in Oise
After assessing the property, you can consult our pages on global energy renovation in Oise, heat pumps in Oise, insulation in Oise and thermodynamic water heaters in Oise. You can also find our page dedicated to energy renovation in Oise, the regional Hauts-de-France page and local information for Beauvais.
Frequently asked questions
What is the difference between an audit and a simple energy assessment?
An audit is intended to build work scenarios that take account of the characteristics of the property and the interactions between the different elements. It is therefore not limited to providing a general snapshot of consumption or performance. Its main purpose is to organise improvements in a technically coherent order before several types of work are undertaken.
Is an audit useful for a detached house built in the 1980s?
Yes, particularly when several elements have aged at the same time. Less effective loft insulation, air leakage, poorly adjusted ventilation and an older boiler can all combine. The analysis helps determine which areas should be addressed first so that equipment is not replaced before the building’s needs have been reduced.
How is damp in older walls taken into account?
It should be distinguished from simple heat loss. Rising damp, an overly impermeable finish or water ingress can change the way the wall behaves. In an older house, the scenario therefore takes these constraints into account before insulation is considered, helping avoid trapping moisture behind a new build-up.
Does an audit require all the proposed work to be carried out?
No. Its first purpose is to understand the property and structure several possible improvement pathways. The scenarios provide a clear view of priorities and the interactions between the different elements. You can then decide how the project will proceed according to your constraints and the schemes applicable at the time of the work.
Let’s talk about your project
Tell us about your home and your goals: we help you prioritise the works and identify the grants worth looking into.