“
Our electricity bill dropped by €72 the very first month. I was sceptical, but the numbers don't lie. CoolSave paid for itself in under a year.
Katrin Bauer
Homeowner · Munich, Germany
// Energy-Efficient Cooling · EuropeStay cool.
Stay cool.
Not costly.
As Europe's energy costs rise, traditional AC drains your wallet and the grid. CoolSave delivers comfortable indoor temperatures using up to 60% less energy — from day one.
Est. 2021 · Amsterdam
EU Energy Label A+++↓ Scroll to explore
Featured Result
€840 saved in the first year
Müller family · Munich, Germany
12,400+ European homes
// The NumbersReal savings.
Real savings.
Real impact.
CoolSave's performance is independently verified across thousands of European homes and commercial buildings. These aren't projections — they're results.
60%
Less energy than traditional AC
Verified across 12,400+ European installations
€840
Average annual bill savings
Based on average EU household energy costs 2025
2.4t
CO₂ reduction per home per year
Equivalent to planting 110 trees annually
A+++
EU Energy Label rating
Fully compliant with EU Energy Efficiency Directive
EU Energy Directive CompliantTÜV VerifiedISO 50001 CertifiedCarbon Trust Partner
// How It WorksThree steps.
Three steps.
Lasting comfort.
From initial assessment to the first cool breeze, CoolSave is designed to be frictionless. No lengthy contracts, no complex infrastructure, no disruption to your daily life.
STEP 1
Floor plan analysis
Climate zone mapping
Energy audit report
Assessment & Design
Our engineers analyse your space, local climate data, and energy usage. No guessing — a precise system tailored to your building.
STEP 2
Fast installation
Zero structural changes
Existing system compatible
Smart Installation
Installation under supervision with no heavy infrastructure or structural changes. Works alongside existing systems or as a standalone solution.
STEP 3
Real-time monitoring
Automatic optimisation
Monthly savings report
Savings from Day One
The moment it's running, your energy consumption drops. Monitor savings in real-time via the CoolSave app. Pause, adjust, optimise.
// Perfect ForEvery building.
Every building.
Every climate.
CoolSave adapts to the space, not the other way around. From a studio flat in Barcelona to a commercial complex in Stockholm.
65% avg. savings
Homes & Apartments
Retrofit any flat or house in a single day. Tenants and owners across Germany, France, and the Netherlands report 50–65% lower cooling costs within the first billing cycle.
A+++ Compliant
Offices & Commercial
Meet EU Energy Efficiency Directive targets without costly infrastructure overhauls. Used by offices in Amsterdam, Brussels, and Vienna.
€12k/yr per hotel
Hotels & Rentals
Reduce operating costs per room and market your property as eco-certified. Guests notice the difference in air quality immediately.
Net-zero ready
New Construction
Specify CoolSave at the design stage for maximum efficiency gains. Standard in leading sustainable construction projects across Scandinavia and the Benelux.
// Real CustomersAcross Europe,
Across Europe,
they saved.
From Amsterdam apartments to Prague hotels — CoolSave customers share their real results.
“
We manage 14 rental apartments in Amsterdam. Since installing CoolSave, our tenants are happier, our energy costs are down 58%, and we've hit EU efficiency targets.
Pieter van den Berg
Property Manager · Amsterdam, Netherlands
“
The installation took one afternoon. The technician was brilliant. Three months in and I genuinely cannot imagine going back to the old system.
Isabelle Moreau
Apartment Owner · Lyon, France
“
As a hotel operator, energy efficiency is core to our margins. CoolSave cut our cooling costs by 61% across 48 rooms. The ROI was clear within four months.
Tomáš Novák
Hotel Director · Prague, Czech Republic
“
We specified CoolSave on our latest 22-unit development in Stockholm. It met our net-zero targets and became a selling point for every unit.
Astrid Lindqvist
Architect & Developer · Stockholm, Sweden
// Get a QuoteStart saving
Start saving
today.
Leave your details and a CoolSave specialist will contact you with a personalised quote — no obligation.
No obligation
Reply within 24h
Data protected
// Common Questions
How long does installation take?
Will it work with my existing heating system?
What happens if I move property?
Is CoolSave eligible for EU energy subsidies?
Ready to start saving?
Book your free assessment today.
A CoolSave engineer visits your property, calculates your exact savings, and designs a system — at no cost or obligation.
Get a Free Quote