Water Goes to Your Landlord, Gas Goes to You: Reporting BWB and GASAG Meter Readings When You Move in Berlin

The Official Rule

Assume for a second that BWB and GASAG work the same way, and you’ll get the process backward for at least one of them. Berlin’s water utility and its gas utility put the responsibility for reporting a meter reading in two genuinely different places, and getting the pairing wrong is the actual mistake to avoid, not forgetting to check a meter at all.

Start with water, because it surprises the most people. BWB’s own page for tenants states the arrangement without hedging: “Als Mieter erledigen Sie alle vertraglichen Angelegenheiten rund um Ihren Wasseranschluss mit Ihrer Hausverwaltung,” as a tenant, you handle every contractual matter around your water connection through your Hausverwaltung, your property management or landlord, not BWB. In the large majority of Berlin rentals, especially anything inside a normal Mehrfamilienhaus, the building’s owner or managing agent is BWB’s actual Verbrauchskonto holder, and your water cost arrives folded into your annual Nebenkostenabrechnung rather than as a bill with your own name at the top from BWB.

If you genuinely are a direct BWB customer, most commonly because you own or rent a Reihenhaus or Einfamilienhaus rather than an apartment inside a managed building, the process itself is uncomplicated. BWB’s own wasserzaehler page puts it directly: “Ihren aktuellen Zählerstand können Sie hier unter Angabe Ihrer Verbrauchskontonummer oder im Kundenportal online übermitteln,” you can submit your current reading by giving your account number, no portal login needed at all through the anonymous form. According to energiemarie.de’s independent overview, that reading is required once a year so BWB can true up your actual consumption against your Abschlag installments, and only whole cubic meters count, decimals aren’t reported. If you can’t find your Verbrauchskontonummer or Zählernummer, both are printed on your last Gebührenbescheid, BWB’s fee notice, or you can call BWB’s Service-Center at 0800 292 75 87 (toll-free, Monday to Thursday 8:30 to 16:30, Friday 8:30 to 15:30).

Gas splits the same way water does, just along a different line. What decides whether you’re GASAG’s direct customer isn’t your apartment’s size or age, it’s whether your unit has its own gas meter, in practice almost always because it runs on a Gasetagenheizung, an individual flat-mounted gas boiler, rather than sharing the building’s Zentralheizung or Fernwärme. A Berlin lawyer’s own explainer on subletting and GASAG responsibility confirms the pattern: a unit with its own gas meter means the resident is GASAG’s actual contract holder, registering, paying, and reporting readings directly, exactly the same logic already covered for registering the contract itself in SettledIn’s guide to first electricity and gas registration. If your building instead runs central heating, there’s typically no individual GASAG meter tied to your unit at all, heating shows up in your Nebenkosten the same way water does, and you’re not the one reporting anything to GASAG.

If you are GASAG’s direct customer, reporting a reading is a separate action from registering the contract in the first place, and it’s worth not confusing the two. GASAG’s own Zählerstand melden page walks through it: log into MEINE GASAG, open Meine Verträge, select Zählerstand erfassen, and enter your number reading left to right, whole kWh only, no decimal places, the same whole-unit logic BWB uses for water. If you haven’t registered for the MEINE GASAG portal yet, GASAG’s own contact form or its phone line (030 7072 0000-0, Monday to Friday 8:00 to 16:00) both work as alternatives. On timing, GASAG’s moving page and an independent summary of it both point to the same window: report your reading within roughly two weeks of your Schlüsselübergabe for the smoothest processing, though GASAG’s own language makes clear you genuinely can submit it later if you’re running behind.

One more date worth having on hand regardless of which utility applies to you: Germany’s Energiewirtschaftsgesetz requires suppliers to send a final invoice (Schlussrechnung) no later than six weeks after a contract ends, and GASAG’s own moving guidance confirms that final bill for your old address goes out to your new one, not the old apartment. That deadline applies if you’re a direct GASAG customer moving out. If you’re instead waiting on water or Nebenkosten-billed gas through your landlord, the relevant deadline is a longer one: Section 556(3) BGB requires your landlord’s Nebenkostenabrechnung to reach you no later than the end of the twelfth month after the billing period closes, and the Berliner MieterGemeinschaft notes that missing that window generally costs the landlord the right to bill you for a shortfall, though any credit owed to you still has to be paid regardless of the delay.

What Real People Say

The advice that comes up repeatedly around documenting readings at a Wohnungsübergabe isn’t about remembering to check the meter at all, most people manage that part. It’s about what the photo actually needs to contain. co2portal.de’s own guidance on documenting meter readings at handover is specific: for every meter, record five things together, the Zählerstand, the Zählernummer, the unit, the date and time, and a photo that shows the number and the reading in the same frame. The reasoning is blunt but correct: “ohne Nummer kann später niemand beweisen, welcher gemeint war,” without the meter number visible, nobody can later prove which meter a given reading actually belongs to, and Berlin’s older Mehrfamilienhäuser routinely have a row of near-identical dials in the same Zählerkeller. The same guidance suggests naming photo files with a clear pattern, something like the date followed by “Übergabe” and the utility, and keeping copies in at least two places, on your phone and in a separate cloud folder, so a single lost device doesn’t erase your only proof.

Step by Step

1. Ask your Hausverwaltung directly whether your unit has its own BWB water account or shares the building’s, since that single answer decides whether you ever deal with BWB yourself.
2. If you are a direct BWB customer, find your Verbrauchskontonummer and Zählernummer on your last Gebührenbescheid, and submit readings once a year through BWB’s anonymous online form, whole cubic meters only.
3. If you’re a typical tenant, note your own water reading at handover for your records anyway, but don’t expect BWB to want anything from you directly, your landlord relays it through Nebenkosten.
4. Check whether your apartment has a Gasetagenheizung or shares the building’s central heating. A Gasetagenheizung means you’re GASAG’s direct customer for both registration and meter readings.
5. If you are GASAG’s direct customer, report readings through MEINE GASAG’s Zählerstand erfassen, entering whole kWh left to right, ideally within about two weeks of your Schlüsselübergabe.
6. Whichever utilities apply to you, photograph every meter’s number and its reading together at handover, with the date and time visible, and save copies in two separate places.
7. Note your landlord’s Nebenkostenabrechnung deadline (12 months after the billing period ends) if water or gas comes through Nebenkosten, or your Schlussrechnung deadline (6 weeks after contract end) if you’re a direct GASAG customer moving out.

Compliance Note

This page explains the general framework for reporting water and gas meter readings when moving in Berlin, current as of mid-2026. It is not legal advice. Processes, deadlines, and contact details can change, confirm your specific situation directly with BWB, GASAG, or your Hausverwaltung before relying on any detail here.