Manage new build & retrofit. Made simple.
From surveying the existing building through costing and tendering to site supervision – new build and retrofit alike, all in one app with real contractor prices. Software that finally covers the whole project, not just the site.
✓ Every Premium feature, unrestricted, for 30 days – no credit card.
Built by practitioners: 10 years of retrofit project management plus 30+ years of construction expertise.
The problem: a different tool for every phase – and none of them connect.
That is exactly what Renaldo Expert Pro is for.
Renaldo comes from practice – not from a drawing board
Not an anonymous software house: Gregor builds Renaldo along the real workflows of architects and engineers. In 60 seconds he explains why. (Video in German.)
Cost truth from the very first click.
Renaldo thinks about every retrofit from the end backwards: a contractor's invoice is always work item × quantity × unit price – Renaldo determines all three and turns them into a reliable, tender-ready cost plan.
Work item
From a database covering more than 20 trades.
×Quantity
From your building and room data.
×Unit price
Real regional contractor rates.
The work nobody else takes off your hands.
Quantity take-off, bill of quantities, bid comparison, construction schedule — four jobs that normally cost days, all produced here from one configuration.
Costing without a quantity take-off
Quantities from the building, prices from the market.
You choose the work item. The quantity comes from your building and room data, the price from real regional contractor rates. No counting windows, no calculating wall areas.
The bill of quantities you never have to write
Straight from the configuration into the tender.
Your configuration becomes a tender-ready bill of quantities across every trade — with long descriptions, quantities and unit prices. From there straight into the local search and the online request.
The bid comparison that shows the gaps too
Every bid measured against your own bill of quantities.
The bids line up next to each other, item by item. What becomes visible is not only who is cheaper — but what the cheapest bid leaves out, and how much money that leaves open.
The construction schedule that writes itself
And everyone involved keeps it current.
The durations come from the same configuration as the costs. If one task slips, the whole plan follows. Firms report from the portal — via link, no account.
The whole residential project – end to end in one app.
Renaldo covers every phase – plan & cost, tender & award, build & settle. No broken handovers, no point solutions. The same three phases guide you inside the app: the task view shows what's next in each one.
Plan & cost
Survey, a cost estimate at real contractor prices, and design – the reliable basis for every engagement.
Tender & award
Tender from the finished bill of quantities, approach contractors, and compare bids objectively with AI.
Build & settle
Site supervision with inspection points and defects, plus AI invoice checking against the bill of quantities and awards.
Survey, cost, design – without a single re-entry.
Your goal in this phase
Renaldo works the costing back from the end: the cost-certainty indicator shows at any moment how solid your numbers are – and what is still missing before they are tender-ready.
Capture the building without typing it three times.
Enter the address – the LoD2 building model is there immediately. Or import from a Doorbit 3D scan, Hottgenroth, EVEBI and IFC, straight into the works and building model. Extended building fields (new elements, demolition) cover full refurbishments, and the AI condition analysis turns a photo into a damage assessment with prioritised measures.
Reliable costs in minutes – with real contractor prices.
Get going fast: pull measures from an existing retrofit roadmap (iSFP), use the Renaldo retrofit calculator for proposals derived from the existing building, or ask SAM. From there you build the works configuration – five levels drawn from 20 trades plus design and support services, linked automatically to the building data. Quantities from the model, real contractor and consultant prices, dependencies checked. So you can give your client a number early that actually holds.
- Five levels down to a tender-ready line item
- Real contractor & consultant prices, quantities from the building model
- Automatic design recommendations & dependency checking
Drawing register with sign-off, window & door schedules, construction schedule – automatically.
The drawing register lists the documents each work item needs – with a status (open, in progress, available, approved), the person responsible (architect, specialist designer, coach, contractor, or generated automatically) and upload straight from the list. Through the approval flow you request a change approval from the client – with subject, reasoning and an optional cost change; the client approves it without logging in, via an email link, and every step lands in the approval history. Window, rooflight and internal-door schedules are generated automatically from the room schedule, and the construction schedule organises phases, tasks (a two-level checklist) and milestones.
- Drawing register with status & owner per document, upload straight from the list
- Client change approval by email link, no login – including cost change & approval history
- Automatic window, rooflight & internal-door schedules (by floor/room, Excel export) – included in the tender pack
- Construction schedule + two-level task checklist with per-phase detail pages
Fully costed – nothing forgotten.
A complete works configuration is made up of five building blocks – each with a clearly responsible role. The checklist makes the gaps visible and shows who you need to bring in, and when. That's how you head off the expensive surprises that start with “nobody thought of that”.
- Energy measures – energy consultant (retrofit roadmap, retrofit calculator)
- Architectural changes & alterations – architect
- The client's own wishes & material choices – client
- Remedying existing defects – surveyor (structure, damp, contaminants)
- Statutory & retrofit obligations – retrofit supervisor (GEG duties, solar requirements)
First your fee proposal to the client, then the award to the trades.
Complete fee proposals & contracts – in minutes, awarded online.
Produce a complete proposal per project, contract terms included – either from modular Renaldo service blocks (prices taken straight from your works configuration) or as a fee under the German HOAI scale (chargeable costs, work stages, fee zone and rate, and the conversion surcharge). Quantities and prices are pre-filled and editable at any time. The clever part: the costs you quote flow via the basket straight into your client's budget – once they are priced in, proposals get questioned less and signed faster.
- Two costing methods: Renaldo service blocks or the HOAI fee scale
- Basket link: quoted costs land directly in the client's budget
- Payment schedule, appendices & contract wording including the right-of-withdrawal notice, attached automatically
- Sent by email link – the client views & awards without logging in, status per proposal
- Proposal versioning with deltas: a new version with a clear change summary whenever you adjust something
From bill of quantities to award – compare bids objectively.
Tender straight from the finished bill of quantities: local search across the professional network, online request, bids and award in the portal. The AI bid analysis lines up bids for the same works item by item – quantities, prices, missing or additional items all immediately visible. So your award recommendation is one you can justify.
- Local search in the professional network + online request & award
- AI bid analysis & comparison, item by item
- Unlimited requests per trade
Your contractor network – across projects, not scattered.
The contractors and consultants who have proven themselves sit in one central supplier library – not scattered across your contacts. Rate every collaboration in three categories (communication, quality, price fairness), with history and average. For each trade Renaldo suggests your best suppliers; with auto-inclusion they land in matching requests automatically. Anyone who doesn't convince goes on the block list.
- Three-category rating with history & average
- Auto-inclusion of matching suppliers per trade
- Usable across projects · block list for “don't ask again”
Site supervision and settlement that let nothing slip through.
Site supervision that lets nothing slip through.
The digital site diary documents every working day defensibly (with the entry types required by the German VOB) – weather pulled automatically from the German weather service, entries dictated by voice, and a clean, editable AI weekly report at the touch of a button. A critical entry converts straight into a defect; the planned/actual check shows “on plan” or “overdue” per trade. Plus inspection points derived from the configured works, defects with photo and location, and AI invoice checking against the bill of quantities and the awarded contracts.
- Digital site diary: official weather data, dictation, AI weekly report & PDF export
- Inspection points from the works context + defects with photo and location
- Planned/actual against the schedule · AI invoice checking against the bill of quantities & awards
Now for every residential building – from houses to apartment blocks, new build and retrofit.
Buildings, cores, units – cleanly structured.
Model apartment blocks and whole neighbourhoods: buildings with cores, storeys and residential units, each with its own room schedule. Quantities and costs are derived from that structure and scale automatically with the number of units.
- Building → cores → residential units → room schedule
- Quantities & costs scale per residential unit
- Building import per building (IFC, Hottgenroth, EVEBI)
Cost a new build – funding included.
Cost new-build schemes across every trade, with real contractor prices and the funding that fits (e.g. the German KFN/QNG schemes, EH40). From shell to fit-out – the same cost truth as in a retrofit, just for a new building.
- New-build trades & shell quantities from the building
- New-build funding (KFN/QNG, EH40)
- Early stage: development potential & plot scenario
Tools that smooth out the working day.
SAM – AI assistant with expert knowledge
Technical questions on German building-energy law, BAFA/KfW funding, building physics and standards – SAM answers in expert terms, in the context of your project.
Exports: PDF, white-label & CSV
White-label PDFs with your logo, CSVs for ORCA, Abbey or Excel – slots into the tendering workflow you already have.
Financing PDF
Exported from the basket with a purpose of use (retrofit, purchase + retrofit, extension) – for you as the professional to validate and sign.
Material selection checklist
Floors, bathroom fittings, tiles and the rest as a variant-specific checklist with live prices and nearby showrooms – worked through point by point.
Funding overview & checks
Match BAFA/KfW programmes and, optionally, check contractor bids for BEG compliance – if you're supporting your clients through it.
Photo gallery & document storage
Project photos by trade and phase plus drawings, certificates, contracts and correspondence – audit-proof, in one place per engagement.
Configure works from documents
Upload a report, survey or estimate as PDF, Word or image – Renaldo reads out the works and maps them to the catalogue automatically.
Task list
Who does what by when – with owners, due dates, status and reminders across everyone involved.
GDPR & German servers
All client data hosted in Germany. Exportable or deletable at any time.
Your practice scales – with the safety built in.
Run more engagements in parallel without your liability exposure growing with them. Renaldo carries the audit-proof documentation, your Pro tools travel with you into every project, and white-label exports slot seamlessly into the tendering workflow you already have.
- As many engagements in parallel as you like – separate files, teams and deadlines per job, with no per-project surcharge
- Audit-proof documentation (invoice reconciliation, inspection points, defects with photo and location) – covered if liability is ever questioned
- Premium in other people's projects: take your Pro tools into projects you are invited to
- White-label PDFs + CSV exports for ORCA, Abbey or Excel; GDPR-compliant, hosted in Germany
From design to handover – without a single break in the chain.
Design & costing, tendering & award, construction & handover – new build and retrofit alike, from single-family homes to apartment blocks. Every work item linked directly to the building and room data.
Costing across every trade – with ready-made bills of quantities and real contractor prices. Every work item linked directly to the building & room data.
Design & costing
- Building import (IFC)
- Drawing register
- Energy consulting module
- Funding module
- Financing calculator
- Material selection
- Apartment-block structure
- New build
Tendering & award
- Contractor portal
- Online contract award
- Bids + AI comparison
- Contractor address book
- Tendering-software / CSV export
Construction & handover
- Construction schedule & dates
- Defect management
- Site supervision
- AI invoice checking
Get started in 3 steps – with every Pro feature.
No hidden commitments. Try it first, then work at the starter rate – cancel monthly.
Try free for 30 days
The full feature set, no payment details. Take your time to see whether Renaldo fits your workflow.
6 months at the starter rate
Instead of €149 – for the first 6 months. Long enough to run your first projects through end to end.
From month 7: standard rate
Plus VAT. Cancel monthly – no lock-in, no minimum term.
All prices plus VAT. Cancel monthly. Your data stays exportable at any time.
Rather start with the basics? On the Renaldo Start plan you can set up unlimited projects as a building professional – and unlock Expert Pro whenever you're ready.
Expert Pro.
- A cost estimate that holds up, with real contractor prices
- LoD2, Hottgenroth, EVEBI, IFC & Doorbit import
- Unlimited projects & contractor requests
- AI bid analysis, comparison & invoice checking
- Fee proposal & contract (service blocks & HOAI), awardable online
- Drawing register, construction schedule, inspection points & defect management
- Retrofit-roadmap & scan imports
- White-label PDF · CSV export
Let clients find you as a retrofit supervisor.
Clients search the Renaldo app for someone to supervise their retrofit. With an active Expert Pro account you are listed among the supervisors in your region, within the catchment you set (postcode + km). So your account brings you not just tools, but potentially new work.
Recommend Renaldo – with your personal invite link.
After onboarding you get a personal invite link. Clients who start through it get an exclusive benefit – and you keep a clear view of all your referrals.