What Klimaatgarant does

Klimaatgarant BV is a Dutch private limited company headquartered in Schiedam, Netherlands, founded in 2012 and operating as a system integrator for new-build residential projects in the Netherlands. The company delivers an integrated climate system as a single contractual package to project developers, housing corporations, developing contractors, and end residents, covering design, engineering, installation, financing, maintenance, and a distinctive 25-year energy performance guarantee. Klimaatgarant's primary customers are Dutch real estate developers and contractors building BENG/BENG+ and NOM-compliant homes and apartments, with secondary end-customer segments being homebuyers, tenants, and housing corporations running EPV (Energy Performance Payment) schemes. An anchor relationship with parent group Climate for Life (and underlying tech partner Itho Daalderop) supplies the core equipment and monitoring infrastructure.

The core product, the Klimaatgarant Klimaatsysteem, is built on the Trias Energetica framework and combines the Itho Daalderop WPU 5G water/water heat pump extracting geothermal energy from a 125-175 metre borehole, a 150-200 litre hot water storage tank, low-temperature underfloor heating and cooling (18-35°C supply water even at -10°C ambient), balanced ventilation with up to 97% heat recovery (HRU ECO 300), shower heat recovery (douche-WTW, 30-50% drain-side heat reclaim), rooftop solar PV (~0.85 kWh/Wp/yr), and the proprietary Spider Base climate thermostat. Systems target BENG+ certification and an EPC of 0, well below the statutory EPC of 0.4. Post-occupancy performance is monitored continuously through a resident-accessible portal backed by data from more than 15,000 monitored homes and apartments.

Klimaatgarant's business model combines one-time system sales with developers, a subscription rental option for end residents, ongoing maintenance and service contracts (including an optional net-zero energy guarantee term), and a joint exploitation variant with developers. Revenue is generated across both B2B (project developer integration contracts) and B2C (resident rent-or-buy, service contracts) channels, all within a strictly Netherlands-only footprint. Project scale ranges from roughly 20 ground-bound homes to multi-thousand-unit masterplans such as RijswijkBuiten (3,500 homes). Revenue figures, headcount trends, and capital structure are not publicly disclosed; ownership sits within the Climate for Life group.

Name

Klimaatgarant

Legal name

Klimaatgarant BV

Website

https://klimaatgarant.nl

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

51–100 employees

Short description

System integrator for Dutch new-build residential projects, delivering an integrated climate system (geothermal heat pump, balanced ventilation, solar PV, proprietary thermostat) with a unique 25-year energy performance guarantee to project developers and residents in the Netherlands.

Ownership category

akta.pro rank

Product category

Residential Climate Systems Integration

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220), Plumbing, Heating, and Air-Conditioning Contractors (23822)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Auto Controls For Regulating Residential & Comml Environments (3822)

akta.pro primary industry

Boiler & Hydronic Heating System Installation (HSAOAGAF)

akta.pro secondary industries

Radiant Floor Heating Installation (HSAOAGAG), Hydronic/Baseboard Radiant Heating Service (HSAOACAE), Chillers, Boilers & Central Plant Operations (BPABACAG)

Keywords

• Residential climate systems
• Energy-neutral housing
• Geothermal heat pumps
• Heat recovery ventilation
• Building performance guarantee

Headquarters

HQ city

Schiedam

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Climate System Rental to Residents: Klimaatgarant rents the complete climate system (heat pump, thermostat, ground heat exchanger, hot water storage tank, solar system) directly to residents for a fixed monthly fee. The rental includes corrective and preventive maintenance, and repairs or replacement as needed, plus rapid fault response. Residents have the option to purchase the system at any time.
2. Climate System Sale to Residents: Residents can purchase the climate system outright. Upon purchase, they receive guarantees on the system and energy performance, with maintenance included for a predetermined period. After the guarantee period, owners can sign a service/maintenance contract.
3. Maintenance and Service Contracts: Ongoing maintenance contracts covering corrective and preventive maintenance of the Klimaatgarant system components. Includes filter replacement for ventilation (where agreed), fault resolution, and an optional energy-0-garantie (net zero energy guarantee) during the contract period.
4. Joint Exploitation with Developers: Klimaatgarant can exploit the system in joint operation with the developer, or developers can choose to exploit the installation themselves. In all cases, a fixed monthly amount covers central heating/cooling system maintenance up to the shut-off valve, hot water supply, storage tank, and solar energy system.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Klimaatgarant designs, engineers, installs, finances, maintains and monitors complete residential climate systems for new-build homes in the Netherlands, combining a water/water geothermal heat pump, balanced ventilation with heat recovery, shower heat recovery, solar PV panels, and a proprietary Spider Base climate thermostat. Each installation is delivered with a unique 25-year energy performance guarantee covering BENG/BENG+ and EPC 0 standards, with residents able to rent the system monthly or purchase it outright.

Product overview

Klimaatgarant is a Dutch sustainable housing technology company offering a modular, integrated residential climate system as a service/product. The core offering — the Klimaatgarant Klimaatsysteem — combines the WPU 5G water/water heat pump (by Itho Daalderop), a hot water storage tank, balanced ventilation with heat recovery (WTW/HRU ECO 300), shower heat recovery (douche-WTW), solar panels, and the Spider Base climate thermostat, all managed through a resident monitoring portal. The system is delivered with a distinctive 25-year energy performance guarantee and is based on the Trias Energetica principle targeting BENG+ and EPC-0 energy standards. Klimaatgarant operates under the Climate for Life group, which is part of Itho Daalderop's corporate structure.

Differentiator

Problem solved

Functional benefit

Products and services

• Klimaatgarant Klimaatsysteem (Integrated Residential Climate System) Complete residential climate system for new-build Dutch homes, integrating a water/water geothermal heat pump (WPU 5G), balanced ventilation with heat recovery (HRU ECO 300), shower heat recovery (douche-WTW), solar PV panels, and a proprietary Spider Base climate thermostat, delivered with a 25-year energy performance guarantee targeting BENG/BENG+ and EPC 0 standards.
• Climate System Rental (Huur) Subscription-based rental of the complete Klimaatgarant climate system (heat pump, thermostat, ground heat exchanger, hot water storage tank, solar system) to residents for a fixed monthly fee, including corrective and preventive maintenance, repairs and replacement as needed, and rapid fault response, with a purchase option available at any time during the rental period.
• Climate System Outright Purchase (Koop) Outright purchase of the Klimaatgarant climate system by residents, including guarantees on the system and on agreed energy performance, with maintenance included for a predetermined period and the option to sign a service/maintenance contract after the guarantee period.
• Maintenance and Service Contract (Onderhoud & Servicecontract) Recurring service contract for system owners covering preventive and corrective maintenance of the Klimaatgarant climate system, including filter replacement for ventilation (where agreed), fault resolution and rapid response, with an optional net zero energy guarantee during the contract period.
• Klimaatgarant 25-Year Energy Performance Guarantee Long-duration energy performance guarantee promising agreed energy performance outcomes for up to 25 years on (Almost) Energy Neutral (BENG / BENG+) and EPC 0 buildings, unique in the Dutch new-build market and central to Klimaatgarant's integrated climate system offering.

Quantifiable outcome

• EPC 0 achieved (vs. statutory EPC of 0.4 requirement for new builds since January 2021)
• +5 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Dura VermeercoreStrategic or Co-development PartnerDura Vermeer is a key development partner for Klimaatgarant, collaborating on multiple sustainable housing projects including GREENSTART Amstelveen (53 single-family homes with EPC 0, triple glass, WKO system) and the De Machinist apartment complex within RijswijkBuiten (109 apartments). Dura Vermeer develops and builds the residential projects while Klimaatgarant supplies the complete climate system with performance guarantee.
• Itho DaalderopcoreTechnology or IntegrationItho Daalderop is the parent company and technology partner, supplying the WPU 5G water/water heat pump, Spider Base climate thermostat, HRU ECO 300 ventilation unit with heat recovery, and the monitoring platform. Klimaatgarant is part of the Climate for Life group, which includes Itho Daalderop. The webshop for accessories is hosted at ithodaalderop.nl. The companies share origins — Klimaatgarant was spun out of work started at Itho Daalderop.
• BPD (Bouwfonds Property Development)minorStrategic or Co-development PartnerBPD is listed as a partner on the Klimaatgarant 'Over ons' page, indicating collaboration on Dutch new-build residential projects involving sustainable climate systems.
• VormminorStrategic or Co-development PartnerVorm is listed as a development partner collaborating with Klimaatgarant on Dutch sustainable housing projects. Featured in the partner logos section of the website.
• BlauwhoedminorStrategic or Co-development PartnerBlauwhoed is listed as a development partner on the Klimaatgarant 'Over ons' page, indicating collaborative work on Dutch residential projects with sustainable climate systems.
• ThunnissenminorStrategic or Co-development PartnerThunnissen is listed as a project partner on the consumer-facing website partner section, indicating collaboration on new-build residential projects.
• Roosdom TijhuisminorStrategic or Co-development PartnerRoosdom Tijhuis is listed as a project partner on the consumer-facing website partner section, indicating collaboration on new-build residential projects.
• WhoonminorStrategic or Co-development PartnerWhoon is listed as a project partner on the consumer-facing website partner section.
• Van Omme - De GrootminorStrategic or Co-development PartnerVan Omme - De Groot is listed as a development partner on the 'Over ons' page of Klimaatgarant.
• Stevast OntwikkelingminorStrategic or Co-development PartnerStevast Ontwikkeling collaborated with Dura Vermeer to develop and build the De Machinist apartment complex (109 sustainable apartments) within the RijswijkBuiten project, with Klimaatgarant supplying the climate systems.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Technea Group: Dutch energy services and sustainable building solutions company providing integrated climate, energy and smart-building systems for residential and commercial new-build projects — the closest direct competitor to Klimaatgarant's integrated climate system model in the Netherlands.
• Feenstra (VolkerWessels): Dutch heating and climate installation company serving residential customers including new-build homes; competes with Klimaatgarant on residential HVAC integration and service contracts.
• Kemkens: Dutch HVAC and sustainable heating installer active in residential new-build and renovation, including heat pump installations — directly comparable to Klimaatgarant's residential climate system offering.

Broad incumbents

• Vaillant (Netherlands): European heating and heat pump manufacturer with Dutch operations offering residential heating, hot water and renewable solutions; adjacent peer competing for the same Dutch new-build specifications as Klimaatgarant.
• Itho Daalderop: Klimaatgarant's parent company and core technology supplier (WPU 5G heat pump, Spider thermostat, HRU ECO 300 ventilation). Provides the hardware stack underpinning Klimaatgarant's integrated system; broader incumbent offering heating, ventilation and hot water products across the Dutch residential market.
• Unica: Large Dutch technical installer providing HVAC, electrical and building services to residential and commercial customers; comparable to Klimaatgarant as a multi-discipline installer addressing energy-efficient new-build housing.
• ENGIE Nederland: Major Dutch energy services and technical installations provider (including legacy Cofely) with broad residential and commercial HVAC, district heating and energy performance contracting capabilities; overlaps with Klimaatgarant on integrated climate solutions and long-term performance agreements.
• Nefit (Bosch Thermotechnology): Established Dutch heating brand under Bosch Thermotechnology supplying boilers, heat pumps and hybrid systems to new-build and renovation residential markets; comparable as a residential heating technology supplier competing in the same Dutch projects.
• HOMIJ: Dutch technical installation and service company (VolkerWessels subsidiary) providing HVAC, electrical and building services for residential and commercial projects, including energy-neutral new-build housing comparable to Klimaatgarant's customer base.
• Remeha (BDR Thermea Group): Major Dutch heating manufacturer and solutions provider (heat pumps, hybrid systems, boilers); adjacent to Klimaatgarant as a residential heat pump / heating supplier with strong Dutch new-build presence.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCJ4s3JGlQ4b1uKc6N1kZ6XA
• Xx.com/klimaatgarant
• LinkedInlinkedin.com/company/klimaatgarant

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Klimaatgarant