What VARM does

VARM GmbH is a Berlin-based climate tech company founded in 2023 that delivers residential insulation retrofit services across Germany with a stated ambition to scale across Europe and insulate one million buildings by 2035. The company combines a proprietary AI-driven workflow platform — covering building assessment, pricing, materials planning, and quality control — with an in-house network of certified insulation craftsmen built through its 'Cloud Installers' initiative and 'Business-in-a-Box' program. Its core services are blown-in cavity insulation (Einblasdämmung), facade insulation (Kerndämmung / WDVS), roof insulation, top-floor ceiling insulation, and basement ceiling insulation, supplemented by on-site thermal imaging, fixed-price quotes, and government subsidy application support (BAFA, KfW, §35c EStG).

VARM operates a dual go-to-market: a direct-to-consumer motion targeting individual German homeowners via an SEO-dominant content footprint, a €300 Amazon-voucher referral program, and WhatsApp sharing, alongside an enterprise field-sales motion targeting property holders (Bestandshalter), Hausverwaltungen (property management companies), and asset managers with portfolio-scale, ESG- and GEG-compliant projects. Pricing is project-based and one-time per installation, with published consumer examples ranging from approximately €3,990 (85 m² facade) to €6,790 (110 m² basement ceiling), and larger commercial engagements scaling into the high-tens-of-thousands of euros depending on square-meter scope.

Revenue mechanics are tied to installation project volume, currently anchored by 1,000+ completed projects and a 4.9/5.0 Google rating across 448 reviews, with material partnerships spanning Knauf, Rockwool, Steico, Isozell, Hirsch-Porozell, Thermofloc, and Supafil. The company has raised €23.2M total across an early 2023 round, a €5.7M seed (July 2024, Emerge and Pale Blue Dot co-led), and a €17.5M Series A (June 2026, ABN AMRO Sustainable Impact Fund-led, GET Fund co-led). VARM is led by co-founders and co-managing directors Christian Grüner and Sebastian Würz, with functional heads across project planning, customer advisory, technical operations, and referral management.

Name

VARM

Legal name

VARM GmbH

Website

https://varm.earth

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

11–50 employees

Short description

VARM is a Berlin-based climate tech company that delivers AI-managed residential insulation retrofits across Germany through its own trained installer network, serving individual homeowners as well as property holders, Hausverwaltungen, and asset managers.

Ownership category

akta.pro rank

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Residential Insulation Installation Services: One-time installation of insulation (Einblasdämmung / facade / ceiling / basement ceiling) for residential homeowners. Revenue is project-based, one-time per installation. Upsell potential exists through multi-measure portfolios (e.g., facade + ceiling + basement).
2. Commercial / Property Owner Insulation Services: Insulation services for commercial clients including property holders (Bestandshalter), property management companies (Hausverwaltungen), and asset managers. Services are scalable across portfolios with fixed pricing and BEG/GEG compliance documentation.
3. Fördermittel (Subsidy Application Support): VARM assists customers with applying for government subsidies (BAFA, KfW, §35c EStG tax credits). While not a direct revenue stream, this service lowers customer barriers to purchase and supports sales conversion.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels6 records

Core offering

VARM provides end-to-end residential and commercial building insulation services, combining an AI-driven workflow platform with employed and trained craftsmen to deliver blown-in cavity insulation, facade insulation, roof insulation, ceiling insulation, and basement ceiling insulation. The offering bundles free consultation, on-site thermal imaging assessment, fixed-price quotation, government subsidy application support, and execution with quality control documentation.

Product overview

VARM is a Berlin-based insulation service company that operates a unified business model combining AI-powered workflow management with trained installation craftsmen. The core offering consists of blown-in insulation services (Einblasdämmung) as the primary method, supplemented by facade, roof, floor/ceiling, and basement ceiling insulation services. The company deploys its proprietary AI-driven platform to manage the full retrofit lifecycle—from building assessment and pricing to materials planning and quality control—while certified craftsmen execute installations on-site. The Cloud Installers initiative trains and networks insulation specialists to scale delivery across Germany and Europe.

Differentiator

Problem solved

Functional benefit

Products and services

• VARM Einblasdämmung (Blown-In Cavity Insulation)

Named customers12 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered minor.

• Isozell (Isozell)minorOthersIsozell is a supplier of insulation materials. VARM uses Isozell Granublow 033 for core cavity wall insulation in commercial projects (e.g., 1,350 m² project for a property management company).
• KnaufminorOthersKnauf is a major building materials manufacturer. VARM uses Knauf Loft Plus 035 for attic floor insulation projects (e.g., 800 m² project for a property holder).
• RockwoolminorOthersRockwool is a manufacturer of stone wool insulation products. VARM uses Rockwool materials for basement ceiling and other insulation applications.
• SteicominorOthersSteico is a manufacturer of wood fiber insulation materials. Listed as a VARM material partner on the website.
• Hirsch-PorozellminorOthersHirsch-Porozell is a manufacturer of EPS/polystyrene insulation products. Listed as a VARM material partner on the website.
• ThermoflocminorOthersThermofloc produces cellulose-based blown-in insulation materials. Listed as a VARM material partner on the website.
• SupafilminorOthersSupafil is a brand of glass wool blown-in insulation. Listed as a VARM material partner on the website.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• 1Komma5°: 1Komma5° is Germany's leading residential decarbonization platform, offering heat pumps, solar, and increasingly insulation/retrofit services to homeowners. It is the most direct competitor to VARM, with a similar full-stack, technology-enabled model targeting European household energy retrofits.
• Enpal: Enpal pioneered the German residential solar leasing model and is now broadening into whole-home energy services including heat pumps, EV charging, and insulation. Comparable to VARM as a vertically integrated, tech-enabled residential decarbonization provider targeting homeowners in Germany.
• Thermondo: Thermondo is a Berlin-based, technology-enabled home heating installation company focused on heat pumps and modern heating systems. It shares VARM's playbook of combining a software/operational platform with employed installers to digitize a fragmented German trades market.
• Zolar: Zolar is a German online marketplace and installation platform for residential solar and increasingly home energy products. Comparable to VARM's D2C and digital-lead-generation model for residential energy upgrades.

Regional players

• Otovo: Otovo is a leading European residential solar subscription and installation platform operating across multiple European countries. It is a comparable tech-enabled residential energy services model, but is primarily active outside Germany in markets like Norway, Sweden, and France.

Broad incumbents

• Viessmann (Carrier): Viessmann is one of Europe's largest heating and HVAC incumbents, now part of Carrier, and has been expanding into whole-home decarbonization including heat pumps, solar, and energy services. Comparable as an established player addressing the same residential energy retrofit customer.
• Saint-Gobain: Saint-Gobain is a global building materials giant and one of Europe's largest insulation manufacturers and distributors. Comparable as a major player in the same insulation products and building envelope efficiency category, though operating at vastly different scale and with a product-led (rather than service-led) model.
• DAW SE (Caparol): DAW SE is the German owner of Caparol and one of Europe's largest producers of façade insulation systems (WDVS), paints, and coatings. Comparable as a broader incumbent in the same external wall insulation / façade retrofit category that VARM services compete in.

Others

• ROCKWOOL: ROCKWOOL is a global leader in stone wool insulation manufacturing and is one of VARM's listed material suppliers. It is comparable as a major insulation industry participant and supply ecosystem partner.
• Knauf Insulation: Knauf Insulation is one of the world's largest insulation material manufacturers and is also a listed VARM supplier (Loft Plus 035 used in VARM projects). Comparable as a key supply-side participant in the insulation value chain.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/varm-insulation

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds3 records

Investors7 records

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 VARM