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Operating Areas
OPENLINE operates in Construction and Engineering fields with competent expertise in Energy Rehabilitation, Maintenance of Electromechanics Plants, embracing the most qualified market as main challenge.

As an organization model based on stand-alone branches we operate in the following business areas:
Construction and Engineering
Energy Rehabilitation 
Building Maintenance
Electromechanics Plants
Integral Rehabilitation for Buildings
We develop our work in an integrated way and we are results-oriented, with particular attention for Buildings Effectiveness.
Rua Delfim Ferreira, 555
4100-201 Porto
Tel. +351 22 519 4400
Fax +351 22 519 4409
Av. Infante Dom Henrique
Edifício Beira-rio - Fração Q
1950-408 Lisboa
Tel. +351 21 361 8561
Fax +351 21 361 8563
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