Exterior power supply networks

Electrical installation works up to 20kV

Street lighting

Installation of LED lighting systems on streets, lanes, motorways and in parks Street lighting

Interior low-current networks

Installation of computer and telephone networks Interior low-current networks


Installation and assembly of transformer substations Substations

Video surveillance

Installation of security, video surveillance, access control systems

Telecommunication networks

Construction of exterior telecommunication ducts

Fire safety

Installation and maintenance of fire safety systems Fire safety

Interior power supply networks

Installation of interior power networks using cutting-edge technologies. Installation of distribution cabinets

About company

SIA (LLC) "DEREX" has been founded in 2010. Since May 2013, SIA "DEREX" has been offering a range of power industry and communication services to its customers. The company's primary goal is to perform all works at an impeccable level of quality and expertise in order to develop long-term relations with its customers and partners. Our team will gladly and diligently serve individuals, enter

Equipment rental

1. Truck DAF - cargo box length 6.20 m. Lifting capacity 3.0 t.
2. Mini excavator Bobcat E16 – digging depth 2422 m. The set includes a digging bucket 20 cm, 40 cm and the gliding cup 100 cm.
3. Mini excavator Bobcat E25 - digging depth 2582 m. The set includes digging buckets: 30 cm, 40 cm and 120 cm.


All stages of works are carried out in accordance with the customer's schematics or using standard electrical circuit diagrams as per the respective survey sheets. Our best experts are ready to complete any stage of electrical installation works promptly and to an excellent quality. Please see the homepage and the service section of our website for a complete list of the works we do. Our company cooperates with both individual and corporate customers. We mostly operate in Daugavpils and the Daugavpils Region, but will gladly consider any requests from other cities and regions.


Reg. No. 51503050951
Address: 21F Višķu Street, Daugavpils, LV-5410
Telephone: +371 22070690
Bank: Luminor Bank AS Latvian Branch
Account: LV84RIKO0000082771700

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