Enertec

What Enertec does

Enertec Bauphysik GmbH is a privately held German engineering consultancy headquartered in Bruchhausen (North Rhine-Westphalia) with a secondary office in Bonn. Founded in 2004 by Patrick zur Hörst and reorganized into its current legal form in 2012, the firm delivers building physics (Bauphysik) and technical building equipment (TGA) planning services, including thermal protection, sound insulation, moisture protection, fire protection, energy efficiency consulting, and building damage investigation. The practice is built around a compact team of engineers, architects, and technicians who operate an in-house building materials laboratory and run certified on-site measurement programs (thermography per DIN 54162/DIN EN 473, air tightness testing per DIN EN 13829, long-term indoor climate data logging, and hygrothermal simulation per DIN EN 15026).

The integrated service portfolio spans planning, construction supervision (Baubegleitung), diagnostic measurement, and certification, allowing the firm to engage clients from initial concept through construction execution and post-occupancy diagnostics. Notable operational competencies include a Blower-Door test service with n50-value determination, mold investigation via air sampling, and energy certificate issuance for EnEV compliance. The firm is accredited as a KfW-eligible construction supervision provider, which makes up to €4,000 per project (50% subsidy) available to customers.

The business model is a fee-for-service professional services firm with project-based pricing. Unit-priced measurement services (e.g., thermography from €250+VAT, Blower-Door from €345+VAT, data logging from €500+VAT) function as entry-level offerings, while TGA planning, energy certificates, and damage investigation represent higher-value project work. Revenue is driven primarily by residential property owners and regional property developers/construction companies in North Rhine-Westphalia and Rhineland-Palatinate, with additional engagement from commercial and institutional developers on multi-family residential, student housing, and care facility projects. Lead generation relies on the company website, referrals, and word-of-mouth, with no paid advertising or social media presence. The company is privately owned by its founder, has no external investors or subsidiaries, and does not disclose revenue.

Name

Enertec

Legal name

enertec Bauphysik GmbH

Website

https://enertec-bauphysik.de

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Enertec Bauphysik GmbH is a German engineering firm delivering building physics and technical building equipment (TGA) planning, construction supervision, energy efficiency consulting, and building damage investigation for residential property owners, developers, and construction companies across North Rhine-Westphalia and Rhineland-Palatinate.

Ownership category

akta.pro rank

Headquarters

HQ city

Bruchhausen

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Engineering Services: Fee-for-service professional engineering consulting for building physics, technical building equipment planning, energy efficiency, and building damage investigation. Services are quoted per project or based on service fees.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

enertec Bauphysik GmbH is an engineering consultancy that delivers building physics, technical building equipment (TGA) planning, energy efficiency consulting, building damage investigation, in-house laboratory material testing, and on-site measurement services (thermography, Blower-Door air tightness, data logging) for residential and commercial building projects. Services also include construction supervision/accompaniment (subsidized 50% by KfW up to EUR 4,000), energy certificate issuance, and mold investigation. The firm operates regionally in North Rhine-Westphalia and Rhineland-Palatinate, Germany.

Product overview

Enertec Bauphysik GmbH is a building physics and technical building equipment (TGA) engineering firm offering comprehensive consulting services. The portfolio consists of core services including Bauphysik (building physics), TGA-Planung (technical building equipment planning), Energieeffizienz (energy efficiency), Bauschäden (building damage investigation), Labortechnik (laboratory testing), and Baubegleitung (construction accompaniment). These services are complemented by specialized measurement offerings such as thermographic building inspections, air tightness measurements (Blower-Door tests), and data logging for indoor climate analysis. The company also provides energy certificates and mold investigation services. The firm operates as a unified consulting practice where these services interconnect—building physics assessments support energy efficiency calculations, laboratory testing informs damage investigations, and construction accompaniment ensures quality control across all technical disciplines. This integrated approach allows the firm to serve clients from initial planning through construction supervision and damage remediation.

Differentiator

Problem solved

Functional benefit

Products and services

• Bauphysik (Building Physics Services) Core building physics consulting covering thermal protection, moisture protection, sound protection, fire protection, and lighting optimization for residential and commercial building projects. Includes hygrothermal simulation per DIN EN 15026, thermal bridge calculations per DIN EN ISO 10211, summer thermal protection, ventilation concepts, and air tightness concepts per DIN standards.
• TGA-Planung (Technical Building Equipment Planning) Planning of technical building equipment (TGA), including precise sizing of heat generators, specification of alternative heat generators based on renewable energies, and optimization of distribution systems through hydraulic balancing. Targeted at property developers and construction firms designing new buildings and major renovations.
• Energieeffizienz (Energy Efficiency Consulting) Energy efficiency consulting and optimization services for buildings, supporting compliance with EnEV standards and KfW efficiency house requirements.
• Bauschäden (Building Damage Investigation) Building damage investigation services including construction monitoring, root-cause analysis of defects, and remediation planning using thermography, air tightness, data logging, and laboratory testing methods.
• Labortechnik (Laboratory Material Testing) In-house building materials laboratory testing covering water vapor permeability determination, capillary water absorption, moisture content via the Darr method, harmful salt determination, hygroscopic sorption properties, density determination, and fiber identification via polarization microscopy.
• Baubegleitung (Construction Accompaniment / Supervision) Construction supervision and quality assurance controls during and after construction execution, including on-site consulting support for clients. KfW subsidizes accompaniments with a 50% grant up to EUR 4,000 per construction project.
• Thermografische Gebäudeuntersuchung (Thermal Building Inspection) Individual thermal building inspection with interior and exterior images, creating documentation describing identified weaknesses. Includes 4-8 outdoor thermograms, 4-8 interior images, and a written report with photo documentation. Performed per DIN 54162 and certified per DIN EN 473.
• Luftdichtheitsmessung (Air Tightness Measurement / Blower-Door) Building air tightness test per DIN EN 13829 with n50-value determination for single/two-family homes. Available as construction accompaniment with detailed leak detection and photographic documentation of weaknesses, and certificate issuance per EnEV/KfW.
• Datenloggung (Long-term Indoor Climate Data Logging) Long-term indoor climate measurement using data loggers over approximately two weeks. Measures room indoor climate, outdoor climate, and surface temperature of damaged building components to document temperature and humidity curves for mold prevention assessment.
• Energieausweis (Energy Certificate) Energy certificates for buildings as required by the EnEV (German Energy Saving Ordinance) for sales or new rentals. Includes both consumption-based and demand-based certificates.
• Schimmelpilz-Untersuchung (Mold Investigation) Mold investigation services including air sampling, laboratory analysis, and remediation recommendations for residential and commercial buildings.
• Blower-Door-Test (Blower Door Testing with Leak Visualization) Blower door testing for air tightness measurement and leak detection using artificial fog to identify air leakage paths in the building envelope.

Quantifiable outcome

• Energy savings of 20,000 kWh per year achieved through heating control optimization in a multi-family building
• +1 more outcomes

Named customers4 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

Feature6 records

Partnerships

One partnership is on record.

• KfW BankcoreGTM or Marketing PartnerKfW Bank provides subsidies for construction supervision services, covering 50% of costs up to 4,000 EUR per construction project. This partnership enables the company to offer subsidized building supervision services to customers.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Drees & Sommer SE: Large German engineering consultancy with deep building-physics, energy-efficiency and TGA-planning practices serving developers, institutional investors and public-sector clients. Directly comparable to Enertec in core Bauphysik and Energieeffizienz service lines, though operating at national scale across all of Germany and internationally.
• ZWP Ingenieur-AG: German engineering firm specialised in technical building equipment (TGA) planning, energy concepts and building-services design. Closely aligned with Enertec's TGA-Planung and Energieeffizienz offerings for residential and commercial real estate across Germany.
• Hoock & Partner Sachverständige PartG mbB: German engineering firm providing building-physics consulting, energy certification and damage/appraisal services. Comparable to Enertec in Bauphysik, Energieausweis and Bauschäden, particularly on multi-family and commercial projects.
• Ingenieurgruppe Bauen GmbH: Baden-Württemberg-based engineering consultancy offering building physics, energy consulting and structural engineering for residential and commercial projects. Comparable to Enertec across Bauphysik, Energieeffizienz and Bauschäden service lines.
• Planungsgruppe M+M AG: German engineering firm delivering TGA planning, energy concepts and building-physics services for residential, commercial and industrial clients. Comparable to Enertec in TGA-Planung, Energieeffizienz and Bauphysik offerings.
• GSE Ingenieurgesellschaft mbH: German engineering consultancy focused on technical building services, energy consulting and building physics for residential and commercial real estate. Closely comparable to Enertec's integrated Bauphysik plus TGA-Planung delivery model.
• Wöhrlen Ingenieurbüro: Regional German engineering office offering building-physics, energy-efficiency and damage-investigation services for housing and commercial buildings. Comparable to Enertec in Bauphysik, Bauschäden and Energieeffizienz, with similar regional mid-market positioning.
• Köhler + Partner Ingenieurgesellschaft mbH: Mid-sized German engineering consultancy with practices in TGA planning, energy consulting and building physics. Comparable to Enertec across TGA-Planung, Energieeffizienz and Baubegleitung for residential and institutional clients.

Broad incumbents

• Buro Happold Engineering: Global engineering consultancy with European building-physics and sustainability practices serving complex real-estate and infrastructure projects. Overlaps with Enertec's Bauphysik and Energieeffizienz capabilities but operates at much larger scale and across multiple engineering disciplines.
• Arcadis Germany: International design, engineering and consultancy firm with German operations covering sustainable buildings, energy advisory and construction services. Comparable overlap with Enertec's energy-efficiency and building-physics consulting, but as part of a much broader portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Enertec