Unabhängige deutsche Bausachverständige · Baugutachter · Düsseldorf

We find hidden defects before you buy.

Don’t buy blind. Independent technical inspections for property buyers in Düsseldorf, saving you unnecessary hidden costs of up to €100,000.

We do not sell property. We give you the condition of the building in writing, defect by defect, with costs, so nothing from the viewing is left to memory or to trust.

English · German · reports in either
01We check your documents
02On site: the 12-point inspection
03Your report & findings, within 24 hours
Alice Carpenter, Bausachverständige
Full Gutachten
What’s included
  • On-site visitAlice inspects in person
  • Thermal camera + damp meterEvery reading measured
  • Written report in 24hEnglish or German
  • Photos of every findingRated traffic-light style
  • Repair cost estimatesPer defect, in euros
  • Document checkMinutes, reserves, Energieausweis

Remember, purchasing property is one of the largest investments we make in our lifetime, let’s do it right!

See our full services below ↓
Alice CarpenterAlice CarpenterIndependent certified BausachverständigeDESAG B/250907
Alice Carpenter, Bausachverständige, on site
Inspecting and representing clients in private and commercial matters, since 2015.
Building Inspections in Düsseldorf

Our services and costs

We also offer valuation (Verkehrswertgutachten) and other services · all our prices are fixed, with no surprises at the end · thermal camera included in every service · all services & prices →
What the report covers
01

Foundation & Structure

Load-bearing walls, settlement cracks, structural integrity.

02

Roof & Attic

Tiles, flashing, insulation, timber condition.

03

Moisture & Damp

Rising damp, basement moisture, condensation, measured, not guessed.

04

Electrical Systems

Wiring age, safety standards, capacity.

05

Plumbing

Pipe condition, drainage, water pressure.

06

Windows & Doors

Seals, frames, thermal performance.

07

Insulation & Energy

Thermal bridges, U-values, Energieausweis plausibility.

08

Walls & Cracks

Structural versus cosmetic, and which is which.

09

Heating & Ventilation

Boiler age, radiators, air exchange.

10

Wohnfläche & Layout

Independent floor-area measurement and verification.

11

Exterior & Façade

Render, balconies, drainage, boundary structures.

12

Mould & Air Quality

Visible mould, humidity levels, ventilation adequacy.

+ Document check included in the full Baugutachten (add-on for the Red Flag Check): Teilungserklärung, minutes of the Eigentümerversammlung, Wirtschaftsplan, Energieausweis
Every finding photographed, rated traffic-light style, and costed, plus a review of the sale documents and minutes. Enquire for more info.
The instruments

Measured, not guessed.

Every finding is backed by a reading: surface moisture, infrared temperature, humidity, build-up. A freshly boarded wall tells you nothing. The reading behind it does.

Capacitive moisture mapping · infrared thermometry · thermal imaging included · endoscope inspection

Infrared thermometer: surface temperature, on site
Infrared thermometer: surface temperature, on site
Thermal imaging: cold wall corners, a classic mould risk
Thermal imaging: cold wall corners, a classic mould risk
Moisture meter: damp measured, not guessed
Moisture meter: damp measured, not guessed
Digital spirit level: floors and walls in degrees
Digital spirit level: floors and walls in degrees
Thermal imaging: heat loss around doors and frames
Thermal imaging: heat loss around doors and frames
Thermal imaging: radiators and heating checked
Thermal imaging: radiators and heating checked
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Meet Alice
Alice Carpenter at the helm of a sailing yacht
Alice Carpenter, Bausachverständige, DESAG B/250907
Alice Carpenter, Baugutachterin, portrait
Representing private and corporate clients

I don’t do nice reports. I do honest ones.

I’m Alice Carpenter, Baugutachterin and Building Surveyor with an RICS-accredited BSc. I arrive with a thermal camera and moisture meters, I go into the cellar, I get onto the roof, and I read the minutes of the Eigentümerversammlung. In Düsseldorf the question is rarely how it looks, it is what sits behind the finish.

British training, continental practice. Before ABC Experts I worked for boutique technical due-diligence firms across the DACH region, which is why every finding carries a number rather than an adjective. I work only for buyers and owners, never for the seller.

DESAG-geprüfte Baugutachterin, Schäden an Gebäuden & Wertermittlung
RICS-accredited BSc (Hons) Building Surveying, London, UK
Inspecting and representing clients in private and commercial matters since 2015
Fluent in German and English (British born)
Alice Carpenter
DESAG-certified Bausachverständige, B/250907
BSG e.V. certified, DE-B-18092507
BSc (Hons) Building Surveying
Berlin since 2015, works only for buyers
More about Alice →
What clients say
5.0on Google
★★★★★
Every review public & verifiable
“I contacted Alice for a review of an apartment and I was impressed with both the results and the attitude! Easy, friendly, professional, and with attention to detail!”
Kostas T. · Google
“Alice completely won me over throughout the entire building survey process. Exceptionally friendly, patient, and highly professional. I had many questions and uncertainties, Alice truly put me at ease.”
Barış Ş. · Google
“We contacted Alice for a survey before putting down an offer to buy an apartment, and she was fantastic. She checked everything, did a water damage check with specialized gear, read through the building's meeting minutes and documents. The report was meticulous and detailed, delivered within 24 hours. We highly recommend booking her!”
Peyee C. · Google
“Alice was extremely professional and thorough with her red flag assessment. She helped us become more knowledgeable and feel empowered to make sensible decisions before buying property.”
Kia Widlo · Google
“Super reliable, best service.”
Farah Gamal · Google
Read all reviews on Google ↗
DESAG B/250907 · Verify RICS-accredited BSc · London Practising since 2015 Fully insured 100+ inspections 5.0 · Google Reviews
Independently certified
DESAG, Deutsche Sachverständigen Gesellschaft

DESAG Certified

Deutsche Sachverständigen Gesellschaft. Entered in the expert registers; professional ID as a tested and recognised expert.

Verify certificate →
DESAG Sachverständiger Stempel, Alice Carpenter, B/250907

DESAG Expert Seal

Personal certification seal B/250907. Valid through 09/2027.

BSG e.V. Sachverständiger, Alice Carpenter, DE-B-18092507

BSG Expert Seal

Berufsfachverband für das Sachverständigen- und Gutachterwesen e.V., DE-B-18092507.

Why It MattersDüsseldorf is Germany's corporate relocation capital
Why It Matters

Düsseldorf is Germany's corporate relocation capital

Home to Europe's largest Japanese community, major international corporations (Henkel, Vodafone, L'Oréal), and a thriving expat scene. Average prices in prime districts reach €4,000-5,500/m². An independent Baugutachten protects your investment in this competitive market.

What Düsseldorf buyers face

Düsseldorf's elegant Gründerzeit apartments in Oberkassel and Carlstadt feature ornate stucco facades that often conceal Feuchtigkeit (moisture damage) and outdated infrastructure. Trendy conversions in Flingern and Unterbilk can hide structural compromises behind stylish finishes. New developments along the Rheinufer and in the MedienHafen may have Baumängel (construction defects) masked by premium presentations.

If you're on a 3-5 year corporate posting and buying your first German property, the process can feel overwhelming. A Makler won't flag the Feuchtigkeit in the Keller. We will, fluent in both German and English, we deal with sellers, developers, and Hausverwaltungen in German, then give you the full picture in plain English so you can make informed decisions under time pressure.

What we do differently

We don't just write a Gutachten and disappear. We support you through the entire Immobilienkauf (property purchase), helping you navigate the Notar appointment, understand your rights under German Baurecht (building law), and identify Sanierungskosten the seller should cover.

Clients have used our findings as costed, documented evidence when renegotiating. In Düsseldorf the gap is usually between what was refinished and what was actually repaired.

Düsseldorf's building stockIn Düsseldorf the finish regularly hides the fabric.
Düsseldorf's building stock

In Düsseldorf the finish regularly hides the fabric.

Düsseldorf mixes surviving Gründerzeit quarters with post-war stock and high-end new build. The market rewards presentation, and a good finish reliably distracts from the structure behind it.

What the mix means for buyers

A beautifully finished flat is not automatically a refurbished one. What matters is what happened behind the surface, not which taps were fitted.

In the Gründerzeit stock the usual Altbau questions apply: floors, damp at the base, the age of the services, later alterations.

What we look at hardest in Düsseldorf

For apartments we read the owners' association paperwork as carefully as we inspect the flat. A special levy already voted through does not appear in the listing.

Many buyers have known this market only for a few months and compare prices without reference to condition. The Bauordnung Nordrhein-Westfalen applies.

Local questions

Questions specific to this location

The flat is beautifully refurbished. Do I still need a survey?

Particularly then. A high-end finish says nothing about the fabric behind it. We check what was actually done beneath the surface and what was simply covered over.

How do you review the owners' association paperwork?

We read the minutes of recent years, the service charge accounts, the Teilungserklärung and the state of the reserve fund. Special levies already voted through and upcoming works do not appear in the listing.

I do not know the Düsseldorf market well yet.

Then condition matters even more. Comparing prices without knowing the fabric is misleading. The report gives you the figures that belong in that comparison.

What it costs if nobody looksWhat it costs if nobody looks
What it costs if nobody looks
DefectHow often we find itTypical repair
Moisture in walls or floor build-upBasement and bathroom seals past their life, with the damage above the finish lineVery common€4,000-35,000
Roof and flat-roof waterproofing at end of lifeReads as sound from the ground; the leak announces itself in winterCommon€20,000-90,000
Windows past service lifeSeals, frames and thermal bridges across the whole unitCommon€7,000-40,000
Heating or hot-water plant near replacementAge decides when, the GEG decides what you are permitted to fitCommon€12,000-45,000
Electrical installation not to current standardOld wiring, insufficient capacity, missing RCD protectionOccasional€5,000-25,000
Underfunded InstandhaltungsrücklagePlanned works are on the agenda; the Sonderumlage follows the voteVery common€8,000-80,000+
Structural movement or settlementRare, but the one finding that can end a purchaseRare€25,000-150,000+
Indicative German market ranges for the findings we see most often. Your report gives the numbers for your property, per defect, with photographs. A Viewing Check costs from €450. One avoided item on this list usually pays for it several times over.
Where else we inspect
Fair questions
Costs & Services

How much does a building inspection cost in Düsseldorf?

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A Viewing Check starts from €450, a Red Flag Check with traffic-light dashboard report from €650, and a full Baugutachten from €850. All prices are final, VAT exempt per §19 UStG (Kleinunternehmerregelung). If you're buying as an investment, inspection costs are typically tax-deductible as Werbungskosten.

Can I use a Baugutachten to negotiate the purchase price?

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Yes. Our report documents every defect with photos, estimated repair costs, and technical assessments. We also support you through the negotiation, helping you push back on the seller, understand your rights under German Baurecht, and identify cost reductions.

What is a Bauabnahme and do I need one for a new-build in Düsseldorf?

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A Bauabnahme is the formal handover of a new-build from the developer. Once you sign the Abnahmeprotokoll, defects become your problem. We attend the handover, document every defect in English, and ensure nothing gets signed off until it's properly fixed. Especially important for MedienHafen and Rheinufer developments.

Do you do property valuations in Düsseldorf?

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Yes. We provide Verkehrswertgutachten (market value assessments) for divorce settlements, dividing an inheritance and co-ownership buyouts, by agreement between the parties. These are independent valuations for your own decisions and negotiations. Valuations the Finanzamt must formally accept under §198 BewG require the Gutachterausschuss, a publicly appointed (ö.b.u.v.) expert or an ISO 17024 certified valuer, so we refer those on.

Booking & Process

How quickly can you inspect, and when do I get the report?

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We reply within 2 hours with the next available Düsseldorf dates. After the inspection, your written report arrives within 24 hours, photos, ratings and repair costs included. If your offer deadline is tight, say so; we can often accommodate it.

Can I join the inspection?

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Yes, and we encourage it. Walking the property together is worth half the report: you see every finding in place and can ask anything on the spot. If you cannot attend, we call you afterwards and walk you through the findings one by one.

What documents should I send before the inspection?

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Ideally: the listing, floor plans, minutes of the Eigentümerversammlung from the last three years, the Instandhaltungsrücklage statement, the Energieausweis, and any past damage or repair reports. Do not worry if you have only part of this, we will tell you exactly what is missing and why it matters.

How do I book?

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Send the listing or address through the form below or by WhatsApp. Within 2 hours you receive the next available Düsseldorf dates and a fixed price. No obligation, and no payment until the date is confirmed.

Coverage & Travel

Can I get an English-speaking Bausachverständiger in Düsseldorf?

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Yes. ABC Experts is a DESAG-certified Bausachverständige offering building inspections across Düsseldorf and the wider Rheinland. All reports are in English. We cover Oberkassel, Kaiserswerth, Flingern, Unterbilk, Carlstadt, Golzheim, and all surrounding districts.

Can you help with corporate relocation property purchases in Düsseldorf?

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Absolutely. Many of our Düsseldorf clients are on corporate relocation packages, Japanese executives, American managers, British finance professionals. We provide fast-turnaround inspections and document reviews entirely in English, so you can make confident property decisions within your relocation timeline.

What areas of Düsseldorf do you cover?

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We cover all of Düsseldorf, Oberkassel, Kaiserswerth, Flingern, Unterbilk, Carlstadt, Golzheim, Pempelfort, Derendorf, MedienHafen, and the wider Rheinland region. If you're looking at property anywhere in the Düsseldorf area, we can inspect it.

I own property in Düsseldorf but live abroad, can you manage it?

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Yes. We offer estate management for international owners, annual inspections, maintenance oversight, contractor coordination, and CapEx planning, all in English. Think of us as your trusted eyes on the ground in Düsseldorf.

Technical

What building issues are common in Düsseldorf's Gründerzeit apartments?

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Düsseldorf's ornate Gründerzeit buildings in Oberkassel and Carlstadt often conceal moisture damage behind stucco facades, outdated electrical wiring, insufficient insulation, and plumbing that hasn't been updated in decades. The beautiful facade doesn't tell you the full story, our thermal cameras and moisture meters do.

What exactly is checked in a pre-purchase inspection?

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Twelve areas: walls and cracks, moisture and damp, plumbing, windows and doors, roof and attic, electrical systems, heating and ventilation, insulation and energy, foundation and structure, façade and exterior, Wohnfläche and layout, and mould and air quality. Every finding is photographed, rated traffic-light style and given a repair cost estimate, plus a review of the sale documents and the Eigentümerversammlung minutes.

Request an inspection date
Viewing this weekend? Düsseldorf purchases move quickly. Tell us your offer deadline when you enquire, where a date can be added, we add it, and we tell you honestly when it cannot.

Tell us about the property.

Reply within 2 hours · no obligation · or WhatsApp Alice directly
Thank you, your request is in. We reply within 2 hours with available Düsseldorf dates and a fixed price.
No payment until the date is confirmed · no obligation · we answer most enquiries within 2 hours.
Architectural view of Düsseldorf, drawn plate
Düsseldorf
Inspections on scheduled dates · travel included
Where we inspectDüsseldorf city, Oberkassel, Kaiserswerth, Flingern, Unterbilk, Carlstadt, Pempelfort, Derendorf, Bilk · and the surrounding area, Meerbusch, Neuss, Ratingen, Erkrath, Krefeld. Elsewhere in Germany on request.
Questions?
WhatsAppFastest reply Emailkontakt@abcexperts.de Request a dateForm, one working day
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