Our history

Wettergrens Tak is a roofing contractor with a good reputation and a solid experience in the industry. The company has been in business for over 75 years and is based in Nyköping. The ambition now is to establish the position as one of the leading roofing companies in the Middle of Sweden, also in terms of solar cell installations.

As early as 1949, “Johanssons El” was founded, which later became Provektor, by Sven Johansson in Skara. Today, Provektor offers comprehensive solutions in electrical engineering, automation, and electrical installation. All key competencies are within the company and the main customers are the construction and property industries.

Falu Plåtslageri has its roots in Falun’s oldest sheet metal company, which was founded in 1952 and was located in the historic Elsborg in Falun. Falu Plåtslageri performs everything in building sheet metal, ventilation and roof safety. In 2017, the sheet metal company was acquired by Takab and the name was changed to Falu Plåtslageri AB. Falu Plåtslageri and Takab are located in the same premises and closely collaborate to provide the best possible service to customers.

Per-Ove Pettersson “Poppe” founded a sheet metal company that became NP-Gruppen. Initially, the customers were homeowners in the north part of Stockholm. A few years later, the Property Owners Association became interested, which resulted in many roofing jobs in the inner city of Stockholm. Today, the workforce consists of about 40 employees.

Jarl Hammarstrand founded the business after many years of experience in facade installation. After him, Rainer Standerth became CEO. Fasadsystem worked early on to increase interest in facades in aluminum, steel, and glass in Sweden. Today, the third generation leads the company.

In 1982, Takrekond was founded and has long experience in roofing for over 30 years. The work area is in Kalmar and Blekinge counties, where today seven roofing installers work.

TG’s El in Finspång works with automation, installation, charging stations, solar energy and service.

At first, Swede Energy was a technical consulting company with municipal energy companies as customers. Swede Energy has accomplished a lot since its start, including design of nuclear power plants, and the company has long experience in wind power. Today, the business is within solar power and under the name Soltech Energy Solutions.

Din Takläggare is mainly active in Värmland and Dalsland. Since its inception, it has installed quality roofs with market-leading sealing layers.

Takorama AB was founded in 1990 and the business has experience in roofing since 1982. The work area is mainly in Gothenburg and Bohuslän, where today about 15 skilled and well-trained roofing installers work.

Since its inception in 1992, Takab has offered various types of roofing contracts to mainly larger commercial properties. Everything from smaller steep roofs to sedum roofs, but mainly larger flat and low-pitched roofs.

Rams El started its business in 1993 and performs electrical installations in new construction and renovation, as well as service work.

Takab was founded in 2004 by Jon Onsbacke, who is still the owner and CEO of the company. Takab have long experience in roofing and are based in Falun in the heart of Dalarna but perform work throughout central Sweden.

Annelunds Tak was founded in Ljung in Herrljunga municipality and focus on roofing with canvas and paper.

Sud Renovables was founded in 2005 in Catalonia, Spain. The business is focused on the development and installation of solar energy and storage solutions for property owners and businesses.

From nothing more than an idea born at KTH, Soltech has grown to be Sweden’s leading provider of integrated energy and solar technology.

Measol is a solar cell assembly company. The focus has been on being experts in the market around solar energy and installations.

365zon is based in the Netherlands. The company is focused on solar energy solutions and charging solutions for private individuals, condominium associations and member and consumer organizations for homeowners and condominium owners.

ESSA was founded in 2012 in Örbro and performs all types of exterior and interior glass solutions, with a focus on facade contracting of commercial properties. The entire operation is run from the production facility outside of Örebro, and the majority of projects are found in Sweden’s major metropolitan areas.

Merasol was started in 2013 and has today been merged into Soltech Energy Solutions.

Advanced Soltech is a solar energy company started by Soltech Energy and Advanced Solar Power Hangzhou Inc in China.

Ljungs Sedum is founded

Ljungs Sedum has its operations in Ljung in the Herrljunga municipality together with Annelunds Tak. Ljungs Sedum installs sedum mats on roofs and ground and can of course also offer approved waterproofing in connection with laying sedum on roofs.

Takbyrån is founded

Since its start in 2014, Takbyrån has grown and is now a handful of project managers and around 30 roofers who together have long experience in the industry. Takbyrån offers high-quality overall solutions when it comes to low-pitched roofs.

A terraced house in Vallastaden in Linköping is the first house to get the new roof tile ShingEl, which with 170 plates has an installed power of 6.4 kW.

Soltech develops transparent solar cells with and without color

Soltech developed together with ASP transparent solar cells with and without color that were installed on the parking garage in Vallastaden in Linköping with many colorful solar cells.

Soldags is aimed at the private market in central and southern Sweden mainly with offices in Stockholm, Falkenberg, Sävsjö, and Gothenburg.

ShingEl is launched at SNEC, the world’s largest solar energy fair

Soltech launches the future of roofs – Soltech RooF

Soltech Energy launches Soltech RooF, a product that replaces traditional roof tiles and can be used as building material for roof replacement.

Soltech Facade with different colors (non-transparent) is launched at Nordbygg

Soltech has developed a facade panel with built-in solar cells. The new product is launched at the Nordbygg construction fair held in Stockholm.

Soltech ShingEl wins the QIA innovation prize

Soltech is one of the Swedish winners of the international Quality Innovation award.

Semi-transparent colored (yellow) solar panels are displayed by our partners ASP at the China pavilion in Beijing.

E-Mobility is based in Borlänge. The company offers comprehensive solutions for the design, installation and operation of large electric vehicle charging stations, accompanying customer management and billing software, energy storage and even solar panels.

Soltech at Expo 2020

Soltech RooF and Soltech Facade are chosen as materials for the Dubai Expo 2020 (2021) in the Swedish pavilion “The Forest”.

Swede Energy builds the Nordics largest roof-based solar cell installation

On Industrigatan in Jönköping, solar facades of approximately 6,000 square meters are being installed. Several Soltech companies participated in the project.

Battery storage Alight solar park outside Linköping will contribute to stabilize the electricity grid through frequency regulation.