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Hiring an Appraiser: Legally Sound Value Appraisals at a Fixed Price

Independent Expertise for Cars, EVs and Special Assets On Site

DIAVAG Appraisers·
Hiring an Appraiser: Legally Sound Value Appraisals at a Fixed Price

The essentials

  • 1Mobile service enables inspections directly at the asset's location within 24 hours.
  • 2Transparent fixed prices of auf Anfrages for standard and auf Anfrages for premium assets prevent hidden costs.
  • 3The Premium Battery Test provides essential data on the health status of EV batteries and home storage systems.

Tuesday, 2:00 p.m., a commercial yard in Berlin-Spandau. A used Audi e-tron is about to change owners. The buyer wants to make sure that the condition of the high-voltage battery matches the description. Instead of laboriously transporting the vehicle to a workshop, the DIAVAG appraiser comes directly to the location. With calibrated hardware and standardized processes, the on-site inspection begins. In less than 15 minutes, all data is captured, from the fault memory to paint coating thickness. This mobile approach defines the process when customers hire an appraiser today. Travel and waiting times at inspection centers are eliminated, while quality remains guaranteed through BVSK-compliant standards and senior inspectors.

Why You Should Hire an Independent Appraiser

The decision to hire an appraiser is usually made at moments when significant value is at stake. Whether buying a used car, settling an inheritance, or valuing a home storage system, an objective judgment is the only basis for fair negotiations. A key aspect here is independence. DIAVAG acts as a neutral instance. This means the company does not buy vehicles, does not broker insurance, and does not perform repairs. This strict separation of trading and workshop interests guarantees that the appraisal exclusively reflects the actual condition of the object.

Unlike many online portals that merely use algorithms based on market data, a DIAVAG appraisal is based on a physical inspection. Anyone who wants to hire an appraiser should pay attention to qualification. DIAVAG's appraisers work according to BVSK standards and meet the requirements of ISO/IEC 17020 Type A. This represents the highest level of independence and ensures that the documents also carry high evidentiary weight in legal disputes, such as in a divorce or an insurance case. For specific legal questions, however, you should always consult a lawyer or notary.

Mobile Service: The Appraiser Comes to Your Location

A classic obstacle when planning to hire an appraiser is the logistical effort involved. Vehicles have to be moved, appointments at workshops coordinated, and transfer plates organized. DIAVAG solves this problem with a consistently mobile concept. The appraiser comes to the asset, whether it's located in a garage, on a yard, at a harbor or in a boiler room. This service is already established in the regions of Hamburg, Berlin and Munich, with a nationwide rollout planned for 2026.

The efficiency of the process is a core feature. An appointment can usually be arranged within 24 hours. On site, the expert needs less than 15 minutes for the complete data capture. This is made possible by a standardized workflow and the use of a specialized hardware case. Since no vehicle lift is required, the inspection can take place almost anywhere. For the customer, this means minimal disruption to daily life with maximum information density. Anyone who wants to hire an appraiser benefits here from time savings that conventional inspection organizations often cannot offer.

Transparent Fixed Prices Without Hidden Costs

A common criticism when hiring appraisers is unclear pricing. Hourly fees, mileage allowances, and paperwork charges often make the final total unpredictable. DIAVAG relies on a clear fixed-price model here. For standard assets such as combustion-engine cars, boats, cargo bikes or e-scooters, the price is auf Anfrages. This amount covers the entire inspection, including the creation of the BVSK-compliant PDF appraisal.

Asset ClassScope of ServiceFixed Price
Standard (car, boat, cargo bike)On-site inspection + BVSK appraisalauf Anfrage
Premium (EV, home storage)Incl. Premium Battery Testauf Anfrage
High-value assetsSpecial assessment by senior inspectorauf Anfrage
Dealers / FleetsFrom 50 appraisals/month + APIIndividual

For more complex technologies such as electric vehicles or residential solar storage systems, the fixed price is auf Anfrages. This premium package already includes the Premium Battery Test. There are no hidden travel fees within the regions. This price certainty allows both private individuals and commercial actors to precisely calculate the cost of valuation. Anyone who wants to hire an appraiser receives a professional service at a calculable rate from DIAVAG.

Special Case EV: Why Battery Diagnostics Is Decisive

For electric vehicles, the drive battery is the most expensive component and often accounts for up to 50 percent of the total value. If you want to hire an appraiser for an EV, a visual inspection or reading the fault memory is not enough. DIAVAG therefore integrates the Premium Battery Test as standard in the premium appraisal. Critical parameters such as the State of Health (SoH), cell balance and actual kWh capacity are determined. Internal resistance and the charging curve also factor into the assessment.

This depth of diagnostics clearly distinguishes DIAVAG from general inspection organizations, which often only provide basic data. A high SoH value is a compelling argument at resale and protects the buyer from unforeseen follow-up costs due to a weakening battery. Since DIAVAG operates independently and does not sell repairs, the result of the battery diagnosis is entirely neutral. This is especially important with regard to the upcoming EU Battery Passport, which becomes mandatory from February 2027. DIAVAG is already prepared for these regulatory requirements today.

Appraisals for Seven Asset Classes from a Single Source

Most appraisal firms specialize in cars. However, anyone who wants to hire an appraiser to assess a boat, a construction machine, or a home storage system often faces a difficult search. DIAVAG covers a total of seven asset classes. These include, besides classic cars (combustion and hybrid), EVs, boats (motor and sailing boats), construction and agricultural machinery, cargo bikes, e-scooters and residential solar storage systems. This breadth is unique in the market and allows customers to handle all valuations through a single provider.

Especially in the fields of micromobility and renewable energy, demand for professional appraisals is growing. A home storage appraisal, for example, is essential in real estate transactions or warranty disputes. For construction and agricultural machinery, determining residual value for insurance purposes or the handover of family businesses is often the priority. The standardized workflow ensures that, despite the differing technology, every appraisal maintains the same high quality and legal robustness. Every document is finally reviewed and signed by a senior inspector.

Legal Certainty and Documentation According to BVSK Standard

An appraisal is only as valuable as its acceptance by third parties. If you hire an appraiser to establish a value for the tax office, an insurer, or a court, formal standards are decisive. DIAVAG appraisals are BVSK-compliant. The BVSK, the German association of independent automotive appraisers, sets high hurdles for qualification and valuation methodology. In addition, the compensation structure is oriented toward the JVEG where necessary, which can be relevant for court admissibility.

The documentation includes a tamper-proof set of photos and the capture of technical data using calibrated hardware such as coating-thickness gauges and OBD2 scanners. Optionally, DIAVAG offers a notarial hash on the Polygon blockchain. This generates a digital fingerprint of the appraisal that guarantees its immutability. This technological safeguard is an important building block for legal certainty. Still, the following applies: an appraisal provides the factual basis, while the final decision on reimbursements or legal consequences lies with insurers or courts. In complex legal matters, involving a lawyer is essential.

The Technical Process of the On-Site Inspection

As soon as you hire the appraiser and the appointment is confirmed, the appraiser arrives with the DIAVAG hardware case at the agreed location. The process begins with identifying the asset using the Vehicle Identification Number (VIN) or corresponding nameplates. This is followed by a systematic recording of the visual condition. The coating-thickness gauge is used to check the paint at numerous points to uncover repainting or hidden accident damage. At the same time, tire tread depth is measured and electrical systems are checked with a digital multimeter.

The heart of the technical inspection is connecting the OBD2 scanner. This involves reading not only current fault codes, but also historical data and real-time parameters. For EVs and home storage systems, battery diagnostics are additionally performed. All data is fed directly into the DIAVAG software, which guides the appraiser through a fixed inspection checklist. This prevents human error and ensures gapless documentation. After completing the roughly 15-minute inspection, the data is transmitted to headquarters, where the senior inspector performs the final review before the PDF appraisal is created.

Solutions for Dealers, Fleets and Appraisers

Besides private customers, DIAVAG offers specialized solutions for the B2B sector. Dealerships and fleet operators that regularly need to hire an appraiser benefit from individual terms starting at a volume of 50 appraisals per month. A key advantage here is the API connection to existing Dealer Management Systems (DMS). This enables a seamless flow of data and significantly speeds up inventory valuation and residual-value tracking. DIAVAG's independence is an important selling point for dealers with end customers, as it underlines the objectivity of the vehicle's condition.

For independent appraisers, DIAVAG also offers a partner model. Interested parties can purchase the complete hardware case, including the specialized software, for a list price of auf Anfrages. This allows local appraisers to use the highly efficient DIAVAG workflow and offer their customers state-of-the-art battery diagnostics. Standardizing the processes reduces error rates and increases productivity. This positions DIAVAG not only as a service provider but also as a technology enabler for the entire industry.

Frequently asked questions

What does it cost to hire an appraiser at DIAVAG?
The costs are fixed: auf Anfrages for standard assets such as cars, boats or cargo bikes. For premium assets such as EVs or home storage systems, the price is auf Anfrages including battery diagnostics.
How quickly do I receive the finished appraisal?
An appointment is usually possible within 24 hours. The on-site inspection takes less than 15 minutes, and the finished PDF appraisal is delivered the same day.
In which cities is the mobile service available?
DIAVAG is currently active in the regions of Hamburg, Berlin and Munich. A nationwide rollout across Germany is planned for 2026.
Is the appraisal legally sound?
Yes, the appraisals are BVSK-compliant and signed by senior inspectors. DIAVAG meets the requirements of ISO/IEC 17020 Type A for the highest level of independence.
Which assets can be appraised?
DIAVAG appraises seven classes: cars, EVs, boats, construction and agricultural machinery, cargo bikes, e-scooters and residential solar storage systems.
Is a vehicle lift needed for the appointment?
No, the mobile appraiser does not need a vehicle lift. The inspection can be carried out on any level surface, such as a parking lot, in a garage, or on a yard.
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