Engineering Expertise With Site-Level Understanding.
Meczonetts Engineering Services Nig. Ltd. bridges the gap between high-level consulting calculations and rigorous field craftsmanship.
Founded in 2011 by Managing Director Engr. Ojoko Ogagaoghene Jacob, our firm combines COREN-registered engineering leadership with hands-on fabrication and site execution. From firefighting and HVAC installations for Siemens Energy to cooling-load calculations for Chevron Project Bella, NLNG, and Total E&P, we engineer systems designed for sustained performance and environmental durability.
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Multidisciplinary Engineering Services.
Mechanical Engineering
Industrial plant systems, pump manifolds, equipment selection, overhaul, foundation mounting, and pressure testing.
Explore Scope & Schematics →HVAC & Central Cooling
Daikin VRV/VRF systems, chilled water plants, AHUs, pre-insulated CNC duct fabrication, and precision thermal modeling for Chevron & Siemens.
Explore Scope & Schematics →Plumbing & Public Health
Pressurized domestic water booster sets, sanitary drainage stacks, rainwater management, and water treatment plants.
Explore Scope & Schematics →Electrical Power Systems
11kV/415V substation engineering, main switchboards (MDB), Motor Control Centers (MCC), and generator synchronization.
Explore Scope & Schematics →Fire Protection & Suppression
NFPA-compliant fire pump skids, hydrant ring mains, hose reels, and automatic suppression systems as deployed at Siemens Energy.
Explore Scope & Schematics →Consultancy & Site Supervision
Feasibility studies, full CAD/BIM drawing packs, tender analysis, resident site supervision, and QA/QC handover sign-off.
Interactive Cooling-Load & HVAC Sizing Estimator
Facility managers and developers: calculate your building's estimated thermal demand in Tons of Refrigeration (TR), Kilowatts (kW), and airflow (CFM) with instant equipment recommendations.
From Concept to Commissioning.
Every mechanical and electrical system we install follows a structured 8-stage verification lifecycle.
DISCOVER
Client requirements definition, architectural study, and on-site physical survey.
FEASIBILITY
Cooling-load thermal calculation, equipment sizing, and lifecycle cost analysis.
ENGINEER
MEP coordination, chilled water loops, and single-line electrical schematics.
DOCUMENT
CAD/BIM drawing packs, bill of quantities (BOQ), and authority approval packs.
PROCURE
OEM equipment verification (Daikin, Carrier, Rheem) and factory QA compliance.
INSTALL
On-site pre-insulated duct fabrication, certified piping brazing, and mounting.
TEST
Hydrostatic pressure holding, duct leakage checks, and TAB airflow balancing.
COMMISSION
Live energization, BMS telemetry verification, O&M handover, and client sign-off.
Featured Project Archive.
Trusted by Industry Leaders Across Nigeria.
Verbatim feedback from client project managers, industrial partners, and facility directors.
"Meczonetts delivered our central Daikin VRV air-conditioning installation with remarkable engineering precision. Their duct fabrication standards, refrigerant line testing, and site supervision ensured our hotel suites achieved perfect acoustic silence and optimal cooling comfort."
"On complex industrial and warehouse remodeling projects, Meczonetts demonstrates rigorous technical discipline. Their engineering design for public health, HVAC, and fire suppression met strict quality assurance criteria from concept through execution."
"Meczonetts has consistently proven technical competence in cooling-load analysis, pre-insulated duct installation, and central chiller plant supervision. Their adherence to safety protocols and engineering specifications is top tier."
// VERIFIED CORPORATE CLIENTS & ENGINEERING PARTNERS
Port Harcourt Office.
Our central engineering consultancy and fabrication logistics base is located in Old G.R.A, Port Harcourt, serving projects across Rivers State, Lagos, Bayelsa, and national energy corridors.
Have a Project in Planning, Design or Execution?
Share your project scope, building drawings, and required engineering discipline with our engineering consultants.