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Which energy certificate do you need? Take the free certificate check!
Use our certificates to improve your marketing results.
Whether on a smartphone, tablet or desktop: our clear online forms can be completed from anywhere. Capturing building data becomes straightforward.
The sooner you can capture the building data, the sooner we can issue a quality certificate for you.
Start entering data easily, continue anytime, then finish.
With our simple online forms you can start capturing data from anywhere right away. Progress is encrypted and stored in your browser automatically, so you can continue later. Before you submit, you get an overview of your entries to review.
We review the data and clarify all questions directly with you.
Once you place the order, our energy consultants start the review and issue the legally valid certificate with a registration number from the German Institute for Building Physics. You receive the certificate as a PDF by email — ready for legally compliant marketing.
Partners benefit from many exclusive advantages.
If you need energy certificates regularly, register as a partner. You then get access to our partner portal and can order certificates on preferential terms. Join our affiliate network as well and earn attractive commissions for every referred order.
Start entering data easily, continue anytime, then finish.
With our simple online forms you can start capturing data from anywhere right away. Progress is encrypted and stored in your browser automatically, so you can continue later. Before you submit, you get an overview of your entries to review.
We review the data and clarify all questions directly with you.
Once you place the order, our energy consultants start the review and issue the legally valid certificate with a registration number from the German Institute for Building Physics. You receive the certificate as a PDF by email — ready for legally compliant marketing.
Partners benefit from many exclusive advantages.
If you need energy certificates regularly, register as a partner. You then get access to our partner portal and can order certificates on preferential terms. Join our affiliate network as well and earn attractive commissions for every referred order.
Energy certificates, building efficiency and energy renovations are close to our heart. On our blog you will regularly find articles on current developments, tips and trends.
Four system layers that must interlock: how cloud, accounting and AI change property management — and why the energy certificate belongs in the digital object record as an API.
Energieberater, Blogger
The issue date on the PDF decides: old certificate → final energy in the listing (§ 112 (3)); new certificate from 2027 → primary energy in kWh/(m²·a) (§ 87). Checklist for portal fields.
Energieberater, Blogger
When is a demand certificate mandatory? Until the end of 2026, the building permit date and the number of dwellings decide; from 1 January 2027, use and consumption data do. With a decision table.
Energieeffizienz-Expertin, Content-Managerin
Referrals, website, ads, portals, tipsters: this overview ranks lead channels for estate agents by sales mandates and names the channel many overlook.
Energieberater, Blogger
From 1 January 2027, Section 85 GModG sets what the energy certificate must state — MWh, GHG, smart readiness. The official template is still open.
Energieberater, Blogger
Energy certificate in Stuttgart online: 2022 census building stock, 72.8% gas, online vs offline comparison — and the fast route to a legally valid certificate.
Energieeffizienz-Expertin, Content-Managerin
Energy certificate for a condominium: why there is no certificate for your unit alone, how to get the building certificate — plus a letter template for your property manager.
Energieberater, Blogger
GModG from 1 January 2027: certificate cases in CRM instead of media breaks. White-label, margin, § 87 pre-fill and OpenAPI 3.1.2 for agencies and large managers.
Energieberater, Blogger
Best demand certificate providers 2026: three portals in a short comparison — quality, mobile data capture, customer feedback and portal ratings before you order.
Energieeffizienz-Expertin, Content-Managerin
The bio-stairway obliges new boilers to use bio fuels. Does it change final energy and the class on the certificate? Section 43, primary energy factors, GHG, heat pump contrast.
Energieberater, Blogger
Order a demand-based energy certificate online: €99 fixed price, process and documents. Why the building balance often remains the better choice — even with a cheaper consumption certificate from 2027.
Energieberater, Blogger
Many portals show a TÜV seal — but it checks the website, not your energy certificate. Learn how to recognise the DIN V 18599 quality seal and find suitable issuers.
Energieeffizienz-Expertin, Content-Managerin
From 1 January 2027, listed buildings need an energy certificate for the first time on sale or letting. What the duty means — and what heritage law allows.
Energieberater, Blogger
GModG enacted: Heating reform since 29 July — new energy certificate from 1 January 2027. Timeline, changes and impacts for owners, managers, agents and platforms.
Energieberater, Blogger
Energy Certificate Smart™ experiences: why owners choose this option — when comparing both methods makes sense and what the decision costs.
Energieeffizienz-Expertin, Content-Managerin
Demand certificate providers compared: how to spot serious issuers, what § 88 GEG and DIN V 18599 require — and who delivers legal certainty.
Energieeffizienz-Expertin, Content-Managerin
The German Bundestag and Bundesrat have passed the GModG. What publication, timelines, and new energy certificate rules mean for owners — explained clearly.
Energieberater, Blogger
Does an energy certificate force you to renovate? Learn what page‑4 recommendations mean, what can be mandatory under GEG, and how to read EPBD headlines — with a table and practical checks.
Energieeffizienz-Expertin, Content-Managerin
Photovoltaics and your energy certificate: when solar improves the efficiency class — and why consumption-based vs demand-based certificates treat PV differently.
Energieeffizienz-Expertin, Content-Managerin
Energy certificate for multi-family buildings: when required, consumption vs demand type, typical costs by unit count, and who orders/pays in a WEG.
Energieeffizienz-Expertin, Content-Managerin
You cannot issue an energy certificate yourself (§ 88 GEG). What you can prepare, why Excel is not enough — and the legal online route to a valid certificate.
Energieeffizienz-Expertin, Content-Managerin
Inherited a home? This guide shows when an energy certificate becomes mandatory (sale, letting) — and which retrofit duties may apply independently, with a 2-year deadline.
Energieeffizienz-Expertin, Content-Managerin
Property managers and the GModG: annual consumption data over two years from the heating-cost-ordinance routine, quantified modernisation recommendations, and the HOA resolution risk explained for everyday practice.
Energieberater, Blogger
Section 87 of the GModG hits real-estate listings and landing pages from 2027. How marketing agencies turn it into a lead lever, a service stack and mandate protection.
Energieberater, Blogger
The GModG turns the energy certificate into a platform feature: §§ 80, 82, 84 and 87 hit property managers directly from 1 January 2027. How SaaS platforms integrate via API — without an in-house consultant team.
Energieberater, Blogger
What changes for residential estate agents under the GModG? Sections 80, 87 and 108 are rewritten — six fine offences, unfair-competition warning risk, new listing disclosure rules. A practical guide from 1 January 2027.
Energieberater, Blogger
Consumption certificate for older homes: from 2027 the 1977 insulation rule falls away. Who benefits — and which annual data you still need under Section 82.
Energieberater, Blogger
Energy certificate with MWh per year: what the GModG draft changes — and why class A+ is not the whole story. For homeowners.
Energieberater, Blogger
Correction: 24 monthly values did not become law. What Section 82 really requires from 2027 — and when a consumption certificate in advance still pays off.
Energieberater, Blogger
GModG fact check (originally the cabinet draft of 13 May 2026): A to G for non-residential only; A+ to H stays for homes — confirmed in the promulgated Act. Obligations, fines and dates (Art. 2 from 1 Jan 2027).
Energieberater, Blogger
Heat pump installed but your energy certificate still isn’t “green”? Learn how certificate type, consumption data and input mistakes influence the EPC class — plus practical checklists.
Energieeffizienz-Expertin, Content-Managerin
The government draft bill published on 5 May 2026 introduces targeted changes for energy certificates and signals a broader reform to come.
Energieberater, Blogger
A practical compliance decision guide for selling or renting: mandatory ad fields, when you must present the energy performance certificate at viewings, handover duties after a sale, and fine risk under the German Building Energy Act (GEG).
Energieeffizienz-Expertin, Content-Managerin
Need an energy certificate quickly for a sale or letting? German Building Energy Act (GEG) obligations (viewings, listings), fine levels and realistic timescales – for owners, agents and managers.
Energieeffizienz-Expertin, Content-Managerin
Energy certificates in transition: EU EPBD, Building Modernisation Act, new A–G scale and extended obligations. Overview for owners, agents and managers – with a European perspective.
Energieberater, Blogger
Heating replacement: gas, oil, pellets or heat pump – facts on building efficiency, primary energy factor, costs and property value. Guidance for owners and managers.
Energieeffizienz-Expertin, Content-Managerin
From May 2026 the energy certificate requirement in Germany also applies to lease renewal and major renovation. For landlords, managers and agents: obligations, deadlines, how to spot an expired certificate and benefits after refurbishment.
Energieeffizienz-Expertin, Content-Managerin
Energy certificate at the bank: the role it plays in financing, collateral and risk – and what property owners and professionals should watch for.
Energieeffizienz-Expertin, Content-Managerin
How online portals offer legally compliant energy certificates: API integration, white-label, lead generation. One API for the full certificate lifecycle.
Energieberater, Blogger
Energy certificates with the A–G scale: why EU-wide comparability remains limited and where the certificate still adds value. For brokers and owners.
Energieberater, Blogger
Will energy certificates be invalid from May 2026? EU Building Directive (EPBD), two scenarios for validity of old certificates and clear recommendations for owners, brokers and managers.
Energieeffizienz-Expertin, Content-Managerin
GEG 2026: Energy certificates are being re-evaluated. New A–G scale, extended duties and digital database. What owners need to know now.
Energieberater, Blogger
Energy certificate costs tax-deductible? ✓ Rental ✓ Sale ✓ §35a EStG ✓ All options and requirements at a glance. Save tax now!
Energieberater, Blogger
Discover 20 proven ChatGPT prompts for energy certificate topics. For brokers, managers and property professionals – how to use AI effectively.
Energieberater, Blogger
A free energy certificate is not possible, but you can avoid the cost. Three ways to save money and what to do instead.
Energieberater, Blogger
Can you get an energy certificate for a single flat? When do mixed-use buildings need multiple certificates? All about § 79 and § 106 GEG explained.
Energieberater, Blogger
Why the chimney sweep is not always the best choice for an energy certificate, what it costs and what alternatives you have.
Energieeffizienz-Expertin, Content-Managerin
How energy certificate values affect rent and property value in Berlin and other major cities — explained.
Energieeffizienz-Expertin, Content-Managerin
Looking for a provider to create an energy certificate? We compared 10 online providers for you.
Energieberater, Blogger
Building digitalisation is changing how properties are planned, operated and assessed. Here is what you need to know.
Energieeffizienz-Expertin, Content-Managerin
A short code with big meaning. The registration number on an energy certificate is not just a string of characters. Find out more here.
Energieeffizienz-Expertin, Content-Managerin
What you need to know about the energy certificate in Frankfurt am Main — building stock, grants and how to apply for a certificate.
Energieeffizienz-Expertin, Content-Managerin
The U-value is central to the energy assessment of buildings. What it means and how it is calculated — explained here.
Energieeffizienz-Expertin, Content-Managerin
Many owners look for a simple, low-cost and legally sound way to order an energy certificate online. With so many providers, choosing is hard.
Energieeffizienz-Expertin, Content-Managerin
Lower heating value (Hi) and higher heating value (Hs) sound similar but are not the same. Here is how the difference affects your consumption-based energy certificate.
Energieeffizienz-Expertin, Content-Managerin
What you need to know about the energy certificate in Munich — and you can order your certificate directly.
Energieeffizienz-Expertin, Content-Managerin
How does a heat pump affect the energy certificate? What technical and legal aspects matter? Find out here.
Energieeffizienz-Expertin, Content-Managerin
Secure your property financing: the energy certificate increasingly matters for financing too. Find out more here.
Energieeffizienz-Expertin, Content-Managerin
In Hamburg you can apply for the energy certificate online, simply and in line with legal requirements. Find out more and apply today!
Energieeffizienz-Expertin, Content-Managerin
The useful floor area (A<sub>N</sub>) in the energy certificate often differs significantly from the living area. Here is why.
Energieeffizienz-Expertin, Content-Managerin
You want to sell or let a property – but what about its energy efficiency? The demand-based certificate for residential buildings helps.
Energieeffizienz-Expertin, Content-Managerin
Find out how the building structure in Berlin and Brandenburg affects energy certificates for residential buildings, and how to apply for a certificate for your Berlin property quickly and in line with legal requirements online.
Energieberater, Blogger
What information and documents do you need to have an energy certificate prepared? We show you what to have ready.
Energieberater, Blogger
The energy quality of buildings matters more and more. Find out how the Energyausweis Smart from energyausweis.de helps you increase your property’s value.
Energieberater, Blogger
Our guide explains all values and figures in the energy certificate and what you can do with them.
Energieberater, Blogger
Whether you are an owner, architect or agent – everyone knows the energy certificate matters. But what do you need to know about it?
Energieberater, Blogger
Answers to the most common questions about the new energy certificate from 1 January 2027 — for owners, landlords, estate agents and property managers.
Since 29 July 2026 the Building Modernisation Act (GModG) applies with a new name and heating reform. The new energy-certificate type follows later: it is in Article 2 and applies from 1 January 2027 for every new issue.
Until the end of 2026, certificates are still issued under the interim rules. Details and timeline: GModG promulgated: the new energy certificate arrives on 1 January 2027.
Yes. A certificate issued before 1 January 2027 generally remains usable for its usual ten-year term. It does not become invalid on New Year’s Day.
Without a sale, letting or an expiring validity period, owners do not need to re-issue solely because of the GModG promulgation. You receive the new certificate type only when a new certificate is issued from 1 January 2027.
From 2027, the choice between a consumption certificate and a demand certificate remains only for buildings used exclusively for residential purposes. Even a small commercial share (shop, practice, office) rules out the consumption certificate — then a demand certificate is required.
For the consumption certificate you need annual consumption data differentiated by energy carrier over two years; the most recent period may be no more than 18 months old. More: Consumption certificate: new choice for all residential buildings.
What matters is the issue date, not the marketing year. If the notary appointment is still in 2026, a certificate under the interim rules is enough — and it remains usable afterwards for the usual term.
If the transaction moves to January 2027 or later and a new certificate is issued, the Article-2 format applies: extended mandatory disclosures, digital format and, for non-residential buildings, the new A–G scale. Whether you order now or wait until 2027 mainly depends on when the sale or letting is due.
Yes — from 1 January 2027 the presentation and issue duty also applies on lease renewal if no valid certificate is available. Landlords and tenants should check remaining validity and planned renewals early.
For new lettings the familiar duties remain: present at viewing at the latest and hand over to the tenant. A valid older certificate from 2026 or earlier still covers that.
From 2027 agents and marketers must run two listing logics in parallel — driven by the certificate’s issue date:
Mixing old and new metrics risks warning letters and fines. Practical details: GModG for estate agents.
From 1 January 2027, newly issued energy certificates are digital and machine-readable. Paper is only provided on request by the client or owner — not automatically for every interested party.
The presentation duty remains: by the viewing at the latest the content must be viewable — via screen/PDF, printout or a clearly visible display. Agents should have the file in the CRM before the first appointment.
Managers often oversee many units: from 2027 requirements rise for data quality (two annual periods, energy-carrier differentiation) and for distinguishing exclusive residential use versus mixed use or non-residential buildings.
Digital output and extended mandatory fields affect software and owner communication. Guidance: GModG for property managers.
For non-residential buildings the A to G scale arrives in 2027 (class A only for zero-emission buildings). For sale, letting, leasing or contract renewal a certificate based on an energy balance (demand certificate) is mandatory — without free choice.
For listed buildings the previous exemption ends: certificate, presentation and handover duties apply from 2027 as for other buildings. The residential scale A+ to H remains unchanged for homes — more in the A–G scale fact check.
