Renovations in Berlin
Renovate Heating, Bathroom & HVAC from one source
As a Berlin HVAC master craftsman, Montali coordinates your complete renovation: heating, bathroom and climate technology – with fixed price guarantee and BEG funding up to 70%.
What is a building renovation?
A building renovation encompasses all structural and technical measures to sustainably upgrade an existing building. In Berlin, this most often applies to Gründerzeit period buildings: outdated heating systems (oil, gas), bathrooms from the 1970s–1990s, and pipework that hasn't been replaced in decades.
With the GEG 2024 energy law and the obligation to switch to renewable energy sources when replacing heating systems, renovation pressure in Berlin is particularly high – while federal and state governments fund modernisation massively. The smartest move economically: renovate multiple trades simultaneously, minimise construction costs and combine maximum funding. Montali coordinates exactly this.
€30,000–75,000
Typical complete renovation
Up to 70%
BEG funding possible
3–6 months
Lead time & execution
What does Montali renovate in Berlin?
Three trades – one contact person. We coordinate everything on time and with fixed price guarantee.
Heating renovation
Boiler replacement, heat pump upgrade, hydraulic balancing and funding consultation – we modernise your heating system in compliance with GEG.
- Heat pump (air-water & brine-water)
- Gas condensing boiler replacement
- Underfloor heating retrofit
- Hydraulic balancing (GEG requirement)
- BEG / BAFA / KfW funding advice
Bathroom renovation
Complete renovation, accessible conversion and drinking water technology – turnkey from master craftsmen, all trades from one source.
- Complete bathroom renovation with 3D planning
- Accessible bathroom (KfW funding)
- Pipe renovation without demolition
- Drinking water system DIN 1988
- Bathroom planning & material consultation
HVAC & ventilation
Split AC systems, controlled residential ventilation (KWL) and decentralised ventilation – for perfect air quality after renovation.
- Split AC system (heating & cooling)
- KWL system with heat recovery
- Decentralised ventilation for old buildings
- Commercial climatisation
- Maintenance contracts & annual inspection
How your renovation with Montali works
From first enquiry to turnkey handover – transparent, on schedule, with fixed price guarantee.
Free on-site inspection
We visit you, inspect the property and record all renovation requirements. This appointment is completely free and non-binding.
Renovation concept & fixed price quote
You receive a detailed concept with service description and binding fixed price quote. No hidden costs, no recalculation.
Funding application & scheduling
We submit all eligible applications (BEG, BAFA, KfW, IBB) for you and coordinate the sequence of trades for a smooth process.
Execution & handover
Our masters carry out all HVAC work. You receive complete documentation, acceptance report and the first free maintenance after 12 months.
Funding for your renovation
We know all available programmes – and apply for them on your behalf.
BEG – Federal Funding Efficient Buildings
Up to 70%For replacing old heating systems with heat pumps. Basic subsidy 30% + climate speed bonus 20% + income bonus up to 30%.
valid until 31.12.2029
KfW 261 – Energy Efficient Renovation loan
Up to €150,000 loanLow-interest loans for comprehensive renovations targeting a specific energy efficiency standard. Combinable with BEG grants.
combinable with BEG
BAFA – Federal Office for Economic Affairs
Up to 20% grantGrants for heating optimisation, hydraulic balancing and solar thermal. Direct payment after completion.
direct payment
IBB – Investment Bank Berlin
Supplementary state fundingBerlin state funding for energy renovation, age-appropriate conversions and rental housing modernisation.
specifically for Berlin
Why choose Montali as your renovation partner?
HVAC Master Craftsman
Licensed master craftsman – all HVAC work done independently, without subcontractor chains. One contact for everything.
Everything from one source
Heating, bathroom and HVAC in one contract. On-time coordination – no interface problems between trades.
Binding fixed price guarantee
Our quote is your price. No recalculation, no surprises – even if the construction site reveals unexpected issues.
Maximum funding
We apply for all available funding (BEG, BAFA, KfW, IBB) and maximise your funding share. Our customers save €25,000–45,000 on average.
Combine all trades: Complete Renovation
What do heating + bathroom + AC cost together? Real Berlin figures, process and funding tips.
Gründerzeit & more: Old building renovation
Heat pump in one-pipe systems, lead pipe remediation, heritage bathrooms – we know Berlin's old buildings.
Frequently asked questions about renovation in Berlin
Depending on scope: bathroom renovation €8,000–25,000, heating replacement to heat pump €12,000–35,000. A complete renovation (heating + bathroom + ventilation) typically costs €30,000–75,000 in Berlin. With BEG funding up to 70%, out-of-pocket costs for a heat pump can drop below €10,000.
A standard renovation takes 8–14 working days. For complete renovations with accessible conversion we plan 3–4 weeks. We coordinate all trades in a fixed sequence to minimise your downtime.
Depending on the measure: BEG up to 70% for heating systems, KfW 261 loan up to €150,000, BAFA grants for hydraulic balancing, and IBB Berlin as supplementary state funding. We check free of charge which combination is optimal for your property.
In most cases no. We coordinate construction measures so that bathroom and heating never fail simultaneously. For a complete renovation of the only bathroom, we recommend 1–2 weeks of accommodation elsewhere.
Refurbishment is purely cosmetic (painting, wallpapering). Renovation affects the building fabric: new pipes, new heating, structural changes. As a master craftsman company, we are licensed precisely for these substantial interventions.
For connection work within HVAC projects (control wiring for heat pumps, wallbox preparation, smart home control) we cooperate with certified electrical companies. Full electrical new installation as our own service is planned for 2026.
For individual measures allow 4–8 weeks lead time. For complete renovations with funding applications we recommend 3–4 months – the BEG/BAFA application process alone takes 2–6 weeks.
Yes – after our on-site inspection. We calculate carefully and stand by our quote. Only in case of concealed damage not detectable by any professional do we speak with you immediately before proceeding.
Ready for your renovation in Berlin?
Start with a free consultation. We inspect, plan and apply for all funding on your behalf.
Request free renovation quoteNon-binding · Fixed price guarantee · 24h response