Cost certainty from day one: make your building project predictable at last.
One cockpit for your whole project – retrofit or new build: bids, funding and costs in one place, with AI and SAM alongside you.
Your first cost estimate in 3 minutes – free, no sign-up.
Renovating today usually means spreadsheets, paperwork and sleepless nights.
That is exactly what Renaldo Home Premium is for.
Seven tools that make your project safe.
Seven tools across three phases — plan & cost, tender & award, build & settle. The same three phases guide you inside the app: the task view always shows what's next.
Plan & cost
Which funding are you entitled to – and are you leaving any on the table? The funding tracker and AI eligibility check make sure you aren't.
Tender & award
Find local professionals, check bids with AI, visualise your home with AI and choose materials at live prices.
Build & settle
Have invoices checked automatically and get answers from SAM whenever you need them – safe right to the end.
Claim every euro of funding – and leave none behind.
Match programmes, calculate the amount, manage applications.
Organised by programme – BAFA (individual measures), KfW heating (grants of up to 70 %) and KfW efficiency house, with quick navigation to expand each one. Renaldo checks which programmes suit your project, calculates the amounts personalised to your building data, and keeps an eye on the deadlines. For new build, the German “climate-friendly new build” scheme (KFN, incl. QNG) shows the low-interest loan available.
- “Best combination”: compares scenarios and shows your own contribution & funding rate
- Organised by programme: BAFA, KfW heating (up to 70 %), KfW efficiency house
- New build: KFN incl. QNG – a low-interest loan rather than a grant
Upload a contractor's quote – checked against BEG immediately.
Upload a PDF quote: the AI checks U-values, COP, minimum technical requirements and other criteria of the German BEG funding scheme, and shows whether you could be losing out on grants.
- Stops you awarding work that turns out not to be eligible
- Ideal before you award – not once you're filing the application
Building-energy law, funding & measures – explained in one place.
The “Energy advice” page brings together everything you need to know about your project, matched to your building data. The GEG check measures your planned works against the requirements of German building-energy law (U-values, efficiency-house levels), the funding check (BAFA & KfW) shows which grants and loans are in play, and the recommended measures tell you which steps are worth taking for your building – and in what order. Prefer a conversation? Just ask SAM.
- GEG check: measures tested against U-values & efficiency-house levels
- Funding check (BAFA & KfW) including an estimate of the likely amounts
- Recommended measures in a sensible order – plus SAM to talk it through
The right professionals, fair bids – and a preview of how it'll look.
Approach local professionals in three clicks.
Compare contractors by rating, capacity and price level – and request bids that match your works exactly, in one click. Your first request is free on the Start plan – after that Renaldo Home Premium pays for itself.
Via “add a retrofit coach” in your team you'll find certified retrofit coaches – shown at the very top (ahead of distance), with a distance label to your address and a “certified only” filter.
Gaps and pricing risks, visible immediately.
Analyse bids one by one or side by side – Renaldo shows missing items, unusual prices, risky clauses and differing specifications at a glance.
See your new home before the first contractor arrives.
Upload a photo, pick the look you want – and in seconds the AI shows you how your room or façade will look afterwards. For inside and out, as inspiration for every material choice and decision.
- 12+ style templates for interiors and exteriors
- High-resolution results, shareable straight away
- Inspiration for every material decision
Choose materials – with a price and a showroom round the corner.
Pick floors, bathroom fittings, tiles and the rest from curated products at live prices – as a genuine checklist that walks you through the selection step by step. The showroom search is variant-specific – “textured-render display” rather than just “façade”.
- A real checklist with progress
- Variant-specific showroom search
- Live prices, pulled straight into the project
Safely through construction – right to the final invoice.
Upload invoices – see the discrepancies in minutes.
Upload the invoices and the AI reconciles them automatically against your awarded contracts.
- Reconciled against works & quantities
- Suspicious line items flagged
- Traceable for everyone involved
SAM – your AI retrofit assistant
Ask SAM by voice or chat. It knows your project – the existing building, funding options, open bids – and answers in seconds. Even tricky technical questions about funding, building-energy law and building physics get explained in plain, understandable language.
- Voice and chat input
- Explains funding, GEG & building physics in plain language
- Context-aware on every project, available 24/7
Eight more tools for the day-to-day.
Quick configuration & wizard
Interior fit-out wizard (yes/no questions), retrofit calculator and AI damage analysis – a realistic order of magnitude early on, instead of guesswork.
Photo gallery & document storage
Project photos, quotes, invoices, drawings and contracts, structured in one place – always to hand.
Task list
Who does what by when – with due dates, status and reminders for you and everyone involved.
Professional PDF export
One document for the bank, the trades and your partners – generated in seconds.
Financing PDF
Produce your financing PDF for the bank with a selectable purpose of use – the basic export is free, even before you buy.
GDPR & German servers
All your data hosted in Germany – exportable or deletable at any time.
Quotes & approvals by link
View your professionals' fee proposals without logging in and award them online; approve or reject design changes by email link – you keep track of what's missing and what's already signed off.
Services checklist
Five building blocks, clear roles: you can see who to bring in for what – energy consultant, architect, surveyor and so on. Nothing expensive gets overlooked.
Retrofit knowledge that lets you decide with confidence.
In the Renaldo Academy we explain funding, measures and how a retrofit actually runs, in clear video tutorials, webinars and guides – so you can hold your own in the conversation and leave no important decision to chance. Currently in German.
You stay in the driving seat. The AI is your copilot.
Other tools want to replace you or make your mind up for you. Renaldo does the opposite: the AI calculates, checks funding eligibility, reminds you about deadlines and answers your questions – but every decision is yours. You keep full control of your building project.
- SAM answers your questions in plain language – day and night
- The AI checks bids for funding eligibility; you decide which one to award
- Your data is yours – GDPR-compliant, German servers, exportable at any time
- Optional: bring a certified Renaldo retrofit coach into the team – but you don't have to
Four steps to a cost estimate
The Renaldo app gives you a regionally calibrated cost estimate with a funding note and a plausible price range – initially without an account. You only create a profile, optionally, when you save. Renaldo suggests the modules that fit – you just confirm.
Enter the address of your property. We load the data and the regional price factors.
The interior fit-out wizard asks simple yes/no questions (bathrooms, floors, walls …) and selects the right trades automatically.
Review the building data we found and adjust it where needed.
You get your cost estimate immediately – plus an AI-supported energy analysis with measures, costs and funding.
In the app you turn that rough estimate step by step into a reliable cost plan — the cost-certainty indicator shows what is still missing (confirm the building data, complete the works modules).
Looking for someone to guide you? Certified Renaldo retrofit coaches are listed in the app's coach search, with the distance to your address; certified coaches are shown first. (The coach programme is currently German-language.)
Building new? Renaldo costs that too.
Not just retrofits: plan your new build with cost truth as well. Cost the trades at real contractor prices, check the new-build funding available (such as the German climate-friendly new build scheme) and manage bids in the same cockpit – from the first estimate to handover.
- New-build costing at real contractor prices
- Check new-build funding (e.g. KFN)
- Bids, dates and photos in one place
One price. No subscription. No small print.
- All AI tools including a BEG funding-eligibility check per bid
- Direct access to Renaldo retrofit coaches & supervisors (free to add to your team)
- First contractor request free – even without Premium
- Instant cost estimate without registering
- Contractor search (max. 3 per trade)
- AI invoice & bid analysis
- AI photo staging
- PDF export