Check and Work

What Check and Work does

Check and Work GmbH is a regional German photovoltaic (PV) installation specialist headquartered in Bobenheim-Roxheim, Rheinland-Pfalz. Founded in 2019 by Markus Holl (master electrician and business administrator), Martin Holl (engineer), and Marcel Jäger (engineer), the company delivers turnkey solar energy systems across three core lines: residential rooftops, commercial and industrial rooftops, and tenant electricity (Mieterstrom) projects. Its stated service area spans more than ten cities in Rheinland-Pfalz and adjacent Baden-Württemberg, with over 800 PV installations completed and a Google reputation of 4.98/5 across 160+ reviews.

The technical offering covers the full PV value chain — DC and AC mounting, inverter integration, battery storage, EV wallboxes, and emergency power backup — using components from tier-one OEMs including Huawei, Fronius, SMA, Sungrow, Solyco, TrinaSolar, JA Solar, and DAH Solar. The company handles grid operator registration and Marktstammdatenregister filing as part of its standard scope and commits to project completion within 6–8 weeks. Master craftsman certification (Meisterbetrieb Elektrotechnik) and 15+ years of cumulative team experience underpin quality assurance.

Revenue is generated primarily through one-time project-based fixed-price sales of complete PV systems, supplemented by recurring after-sales service and maintenance. Go-to-market is sales-led and regional, leveraging personal consultation (including an in-store presence at Globus retail), SEO-optimized city-specific landing pages, Google review-driven social proof, and active social media on Facebook, Instagram, and YouTube. A separate cooperation platform at web.checkandwork.de indicates an emerging partner-channel dimension to the business model.

Name

Check and Work

Legal name

Check and Work GmbH

Website

https://checkandwork.de

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Check and Work GmbH is a regional German photovoltaic installation specialist based in Bobenheim-Roxheim, delivering turnkey solar energy systems, battery storage, EV wallboxes, and tenant electricity solutions for residential and commercial customers across the Rheinland-Pfalz region.

Ownership category

akta.pro rank

Product category

Solar Installation Services

NAICS

Solar Electric Power Generation (221114)

SIC

Electrical Work (1731)

akta.pro primary industry

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)

akta.pro secondary industries

Solar Operations, Maintenance & Asset Management (EUAMABAC), Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal) (EUAEAGAB)

Keywords

• Photovoltaic installation
• Solar energy systems
• Residential solar
• Commercial solar
• Energy storage solutions

Headquarters

HQ city

Bobenheim-Roxheim

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales

Revenue model

1. Photovoltaic System Sales and Installation: One-time sale and installation of complete photovoltaic systems including solar modules, inverters, mounting hardware, wiring, and optional add-ons (storage, wallbox). Revenue is generated per project based on system size and component selection. Fixed-price quotations provided for each project.
2. After-sales Service and Maintenance: Ongoing inspection and maintenance services for installed PV systems post-installation.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Check and Work is a Meisterbetrieb (master craftsman business) that designs, sells, and installs turnkey photovoltaic (PV) solar systems for residential homes, commercial and industrial rooftops, and tenant electricity (Mieterstrom) projects in the Rheinland-Pfalz region of Germany. The company delivers end-to-end service from personal consultation and custom planning through DC and AC mounting, inverter and battery storage installation, grid operator registration, and official commissioning, with optional add-ons including EV wallboxes and emergency power backup. Revenue is generated through one-time fixed-price project sales of complete PV systems plus ongoing after-sales inspection and maintenance services.

Product overview

Check and Work is a specialized photovoltaic (solar energy) installation company offering turnkey solar power solutions. The company provides three core product lines: solar installations for private households, commercial/industrial rooftops, and tenant electricity projects. These are complemented by add-on modules including battery storage systems, EV wallboxes, and emergency power backup solutions. The company handles the complete value chain from individual consultation and custom planning through to grid registration and professional installation, working with branded components from manufacturers such as Huawei, Fronius, SMA, Sungrow, Solyco, TrinaSolar, JASolar, and DASolar.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Photovoltaic Systems (Photovoltaik-Anlagen für Privathaushalte) Turnkey solar power systems tailored for residential properties, including custom planning based on energy consumption and roof analysis, complete installation with DC and AC mounting, inverter setup, grid operator registration, and official commissioning. Optional add-ons include battery storage for nighttime use, EV wallbox, and emergency power backup. Targeted at homeowners in the Rheinland-Pfalz region seeking energy independence and reduced electricity costs.
• Commercial and Industrial Rooftop Solar Systems (Photovoltaik-Anlagen für Gewerbe- und Industriedächer) Large-scale solar installations for commercial and industrial rooftops, designed to maximize energy efficiency and cost savings for businesses, office buildings, and industrial facilities with higher energy demands. Includes full project handling from planning through grid registration.
• Tenant Electricity Projects (Mieterstromprojekte) Solar electricity solutions for multi-tenant residential buildings that enable renters to consume solar power generated on-site without owning the property. Includes cost allocation among tenants and grid integration.
• Battery Storage Systems (Stromspeicher) Energy storage systems that store excess solar electricity generated during the day for use at night or during grid outages, extending self-consumption of solar power and providing backup capability. Integrated with installed PV systems.
• EV Wallbox Charging Stations Electric vehicle charging stations integrated with the solar system, enabling EV charging using self-generated solar electricity. Installed during AC mounting phase of PV system deployment.
• Emergency Power Backup (Notstromversorgung) Backup power systems that keep the house powered during grid outages using stored solar energy, providing energy security during blackouts.
• After-sales Service and Maintenance Ongoing inspection and maintenance services for installed PV systems post-installation, creating long-term customer relationships and recurring service revenue.

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• GlobusminorChannel Partner/ Reseller/ DistributorRetail partnership for in-store customer consultation and initial project discussions. Customer leads generated through Globus store presence.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Enpal: Berlin-based leader in German residential solar leasing with bundled PV, battery, wallbox, and heat-pump installations. Targets the same homeowner customer with a different commercial structure (lease vs. purchase) and is a major competitive force in the same end market.
• Lichtblick: Hamburg-based green energy provider offering rooftop PV systems, battery storage, wallboxes, and heat pumps to German households. Direct overlap in product mix and target customer, with a stronger national brand but also a regional installation partner model.
• Zolar: Berlin-based online solar platform connecting homeowners with regional installers like Check and Work, also offering direct installation services. Comparable residential PV focus with a digital lead-generation and comparison layer that may disintermediate traditional regional installers.
• 1Komma5°: Hamburg-based German residential and commercial solar installer rapidly scaling a multi-region Meisterbetrieb-style network with full PV, storage, wallbox, and heat-pump offerings — directly comparable customer base, product mix, and turnkey delivery model, but at national scale with venture capital backing.
• Eigensonne: Regional German residential solar installer with comparable end-customer focus (homeowners seeking turnkey PV + storage solutions) and similar craft-based positioning, though operating in a different German region.

Regional players

• EWS Schönau: Citizen-owned German renewable energy utility based in Schönau in the Black Forest that develops and supports distributed solar projects. Operates in a different geographic region but shares the model of building local renewable energy capacity with strong customer trust.
• DZ-4: German regional PV installer offering turnkey residential and commercial solar systems comparable to Check and Work's model, focused on specific German regions rather than national scale.

Others

• Sonnen: Wildpoldsried-based German battery storage and virtual power plant provider, recently part of Shell. Supplies one of the key components (energy storage) integrated into Check and Work installations and increasingly competes with installer-plus-storage bundles in the same end market.

Broad incumbents

• IBC Solar: Established German PV company headquartered in Bad Staffelstein with a broad portfolio spanning module distribution, large-scale project development, and turnkey installations. Operates at much larger scale across residential, commercial, and utility segments than Check and Work.
• SOLARWATT: Dresden-based pioneer in German solar with vertically integrated offerings including glass-glass modules, battery storage, and energy management. Serves both residential and commercial markets with installer networks, making it both a component supplier and competitor to Check and Work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCGr9RGturjeG_eD_lGKHAEg
• Facebookfacebook.com/checkandwork
• Instagraminstagram.com/check_and_work
• LinkedInlinkedin.com/company/check-and-work

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 Check and Work