Industrial Construction Experts

Skilled teams delivering quality engineering, construction, and industrial solutions.

Two men working on equipment installation

Engineering, Construction, and Maintenance Solutions

Demaco Corporation delivers full-service construction, maintenance, and engineering solutions across Puerto Rico. With decades of experience, skilled crews, and certified engineers, we specialize in industrial projects for pharmaceuticals, oil refineries, and power plants, providing turnkey solutions or supporting existing project teams.

Our Services

Construction

Industrial building under construction with equipment
  • General industrial and plant construction.
  • Abrasive blasting, corrosion control, and industrial painting.
  • Heavy equipment operations, excavation, masonry, and steel erection.
  • Pipeline, tank, and pressure vessel construction.
  • Fire protection systems installation.

Maintenance

Crane lifting cylinder at construction site
  • Preventive maintenance and plant turnarounds.
  • Pump, valve, and instrumentation repair.
  • Ultrasonic testing, paint thickness measurement, and holiday detection.

Engineering

Person welding with protective gear
  • Fast-track and turnkey project management.
  • Supplementing client engineering teams.
  • Design and installation of complex industrial systems.

Specialty Services

Construction team maneuvering massive machinery component
  • Rubber lining for chemical tanks.
  • Chemical-resistant floors and coatings.
  • Thermoplastic welding and fabrication.
  • Chemical bricklaying and prefabricated plastic sumps.

Our Strengths and Capabilities

  • Skilled Personnel: Experienced engineers, field superintendents, and bilingual crews.
  • Certified Expertise: ASME, API, and National Board certifications for boilers, tanks, and pressure vessels.
  • Comprehensive Facilities: Largest fabrication shop in southern Puerto Rico with secure storage and tools.
  • Safety & Training: OSHA-certified trainers, heavy equipment certifications, Six Sigma, and risk management programs.

Industrial Power Services

Power Plant Experience

  • Construction of pipelines for Eco-Electrica and South Coast Power Plants
  • Installation of transmission line foundations and equipment supports.
  • Full supervision and labor for piping and equipment installation.

Boilers & Pressure Vessel Expertise

  • Repairs and modifications to boilers and economizers.
  • Nozzle and desuperheater repair.
  • Installation, alignment, and grouting of equipment.

Corrosion Control & Protective Coatings

  • Protective coating removal and replacement in tanks, floors, and dikes.
  • Rubber lining for tanks of all sizes.
  • Concrete floor repair and chemical-resistant coatings.

Contact Our Construction Team

Connect with us to explore your industrial construction, maintenance, or engineering needs. Our team provides customized solutions, expert guidance, and hands-on support for projects of any size.

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