First time buying? Don't let a bad DPE ruin your budget. Learn how our hunters find heat traps.
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26/2/2026

Buying your first apartment is an obstacle course. Between the jungle of announcements and new energy regulations, the risk of getting a bad deal is real. Discover how a real estate hunter secures your investment in the face of thermal sieves.
Gone are the days when you bought a property on a whim. Today, the Energy performance dictates the value of a home. For a first time buyer, understanding the challenges of the Energy Performance Diagnosis (DPE) is a question of financial survival.
A thermal strainer is a DPE rated F or G housing. These goods consume an insane amount of energy for poor comfort. Since 2023, the Climate and Resilience Law toughens the tone. The most energy-consuming homes are gradually being banned from renting. If you buy to live, your heating bills will explode. If you invest, you will soon no longer be able to rent without heavy work.
A bad DPE isn't just about bills. It is a risk of Real estate depreciation. A property classified G sells today between 5% and 15% cheaper than a property classified C. Without expertise, you risk paying a high price for an apartment that will be worth much less tomorrow. The cost of work to win two energy classes can rise to several tens of thousands of euros.
The diagnostic report is a complex technical document. Sellers sometimes tend to minimize the impact of a bad grade. “It's just a question of windows,” you'll hear often. It's not true. Wall insulation, heating system and ventilation play a major role. A real estate hunter analyzes this document line by line to detect inconsistencies.
Hiring a hunter means offering yourself the eyes of an expert before signing. We don't visit salons, we inspect structures. Our role is to detect what you can't see.
When a hunter enters an apartment, he does not look at the color of the walls. He's looking for thermal bridges. We check the presence of mold, the condition of the carpentry and the type of glazing.
We examine the heating mode: individual or collective? Old boiler or heat pump? According to the official site Service-public.fr, the renovation obligations are becoming more and more stringent. We anticipate these constraints for you.
A typical real estate agent wants to sell. A hunter wants to protect you. If we identify a thermal strainer, we immediately encrypt the work. Attic insulation, change of radiators, installation of a double-flow VMC...
We have networks of artisans to get quick quotes. This allows you to know if the project really fits into your overall budget. Also check out our Real estate blog to follow the evolution of prices per m2 by energy class.
There are DPEs that are complacent or simply erroneous. A hunter knows how to spot anomalies in a report. If the surface under consideration is false or if the insulating materials mentioned do not exist, we sound the alarm. We often ask for additional information from the condominium trustee. The objective: zero surprises after the signing of the authentic act.
A poor energy score is not always a reason to flee. It is often the best lever to lower the price for sale. You still need to know how to do it without robbing the seller.
Negotiation is an art. For a property classified F or G, we present the seller with a factual analysis: average market price minus the real cost of renovation work. This “mathematical” approach is difficult to question.
A real estate hunter regularly gets price cuts of 10% or more on thermal strainers. This is where our support pays for itself completely. You can see the details of our interventions on our [suspicious link removed].
The hunter also helps you see farther. A thermal strainer purchased at the right price can become an excellent business thanks to state aid. We refer you to devices like MaPrimeRénov', whose rates you can consult on France Rénov'.
By combining a sharp drop in purchase prices and work subsidies, you end up with a well performing for a total cost that is less than the market price.
Going through a hunter also means making sure that the Sales agreement includes the right suspensive clauses. We check that the property is not subject to an impending rental ban if your project is rental. We secure your personal contribution by avoiding “financial chasms” investments. For a first time purchase, this peace of mind is priceless.
The current real estate market Don't forgive amateurism anymore. The DPE has become the core element of any successful transaction. As a first-time buyer, you have no right to make mistakes on your first mortgage.
The real estate hunter is not a luxury, he is your best technical and financial ally. It transforms a risk of thermal strainer into an intelligent and profitable renovation opportunity. Don't let a botched diagnosis ruin your future: call in an expert who defends your exclusive interests.
No, because the hunter often gets paid for success and his fees are offset by the negotiation he gets on the sale price, especially on properties with a poor DPE. The costs of a hunter are in addition to a real estate agency.
Yes, it is allowed, but you must include the cost of mandatory energy renovation to be able to rent it or simply to limit your heating bills.
A good hunter has a network of reliable partners (contractors, architects) and can put you in touch to get quotes even before you buy the property.

Article written by Mélanie Jacquet,
Real estate expert from the MeCaza blog.
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