2025 · CompletedOffice Fit-out
We design the project,we deliver it safely.
End-to-end engineering, installation and consulting for high voltage, low voltage, ELV and life-safety systems.
About
TNT Mühendislik was founded in Istanbul in 2021 by two electrical engineers, built on more than 15 years of field and management experience in the sector. It is an engineering and contracting hub that applies engineering discipline with rigor across every stage — from theoretical design to on-site execution, from project management to advisory services.
With expertise in High Voltage, Low Voltage, ELV and Life-safety Systems, we take an end-to-end, solution-oriented approach to buildings across a wide range of sectors. Since day one, the many successful projects we have delivered in a short time stand on a simple foundation: technical excellence and a firm commitment to engineering ethics.
At every step of our operations, we combine cost-driven efficiency, full compliance with health-and-safety standards, and on-time delivery under a single goal: "full customer satisfaction." At TNT Mühendislik, we blend our collective expertise with a modern engineering vision — and keep making a difference in the industry through reliable, high-quality service.
2021
Founded
Istanbul
HQ
15+
Experience
50+
Projects
20+
Clients
Services
From a project's first planning to its final acceptance — all under one roof.
We bring engineering, installation and consulting under a single disciplinary roof. Each service we offer takes shape across very different sectors — from sports facilities to industrial plants, from residential to office fit-outs — yet all flow through the same, tirelessly repeated process on site.
What we do
- MV / LV single-line and panel diagrams
- Short-circuit, selectivity and earthing calculations
- Fire detection, CCTV and access control systems
- Smart-building, automation and signalling (BMS) infrastructure
- Photometric analysis and calculation reports with DIALux
Engineering
01 / 04From high-voltage power systems to extra-low-voltage, security and automation architecture — we design and model the entire electrification and infrastructure of your projects end to end.
Key deliverables- MV / LV single-line and panel diagrams
- Short-circuit, selectivity and earthing calculations
- Fire detection, CCTV and access control systems
- Smart-building, automation and signalling (BMS) infrastructure
- Photometric analysis and calculation reports with DIALux
Consulting & Site Supervision
02 / 04Site inspection, schedule tracking and electrical-safety compliance checks; take-off, specification, billing of quantities and independent technical advisory.
Key deliverables- Verification of on-site works against approved drawings and technical specifications
- Dynamic schedule tracking via Gantt charts and critical-path analysis
- Managing technical approval of all electrical equipment arriving on site
- Electrical-safety audits during testing, commissioning and high-risk work
- Witnessing site tests and preparing punch lists for acceptance readiness
- Take-off & BOQ report
- Technical specification
- Progress-payment control
- Independent peer review
Installation
03 / 04Turn-key installation of HV/LV distribution boards, transformer substations, lighting, extra-low-voltage and security systems.
Key deliverables- Substation setup, panel fabrication and uninterruptible power (UPS/generator) integration
- EN 54-compliant fire detection, voice alarm, CCTV and access control installation
- High-speed fiber-optic / structured cabling and IP/multimedia systems
- Earthing, Faraday cage, lightning protection and selective surge (SPD) systems
- Testing and commissioning
After-care
04 / 04Dynamic fault response and periodic technical maintenance management for the uninterrupted operation, energy efficiency and system continuity of facilities and critical infrastructure.
Key deliverables- Scheduled preventive maintenance that pre-empts downtime and faults
- Emergency on-site response safeguarding critical-system continuity
- Reporting arc, loose-connection and overheating risks via regular under-load thermography
How we work
- Site infrastructure survey and condition analysis
- Functional scenarios and needs assessment
- Cost management for design, consultancy and tender phases
- Scope management and preliminary agreement
Needs analysis
- Site infrastructure survey and condition analysis
- Functional scenarios and needs assessment
- Cost management for design, consultancy and tender phases
- Scope management and preliminary agreement
Design & spec
- Definition of technical specifications and standards
- Engineering calculations and load analyses
- Code-compliant project design
- Tender file, quantity take-off and brand lists
Bid & budget
- Approximate cost analysis and budgeting
- Preparation of the subcontractor shortlist and technical/administrative tender files
- Collecting subcontractor bids and building comparison tables
- Presenting the best-fit subcontractor for client approval; managing legal and technical contracting afterwards
Install & test
- Coordinated shop drawings aligned with the master schedule and the site's architectural/mechanical dynamics
- Material approval (MAF) processes for all equipment entering the site
- Code-compliant installation of approved designs; daily/weekly progress and QC reporting
- Full functional testing with accredited instruments (Megger, Fluke etc.), scenario validation and turn-key commissioning
Provisional acceptance
- Functional tests and acceptance measurements
- Punch list and close-out
- As-built pack, O&M manual and training
- Sign-off and warranty handover
Ongoing support
- Predictive and periodic maintenance programme
- Thermography, insulation and earthing measurements
- 24/7 emergency on-site response
- Monthly / quarterly / annual condition report
Who we serve
Areas of Expertise
The areas that shape our services — every sector brings its own regulations, scale and on-site reality.
Sports Facilities
01 / 06Field lighting designed to international standards, uninterrupted broadcast and media infrastructure, spectator comfort and integrated security automation.
- High-efficiency, scenario-driven field lighting to UEFA/FIBA norms
- HD/4K live-broadcast media backbone and professional PA
- Spectator access control, turnstile integration and security systems
- Wide-area lightning protection and earthing systems
Office Fit-out
02 / 06Flexible power distribution for new-generation open-plan offices, smart lighting scenarios, high-performance data infrastructure and integrated building automation.
- DALI smart lighting and HVAC control
- Cat 6A / Cat 7 structured cabling, data backbone and certification
- KNX integration and smart-building solutions
Residential
03 / 06MV substation and LV main distribution, unit and common-area energy management, landscape lighting and uninterrupted power infrastructure.
- Slab conduiting and riser works critical for residences
- Fit-for-purpose solutions for common areas and parking
- Substation, LV distribution, meter boards and backup power
- ELV rooms built on fiber-optic and structured cabling
- Landscape and exterior lighting works
Education
04 / 06Campus-scale electrical design and installation tailored to classrooms, laboratories and auditoriums.
- Precision power and laboratory infrastructure
- Campus-wide fiber-optic and ELV backbone
- Auditorium stage sound and professional lighting integration
- Central campus automation and energy management
Retail
05 / 06Lighting design, storefront, in-mall stores and energy sub-metering.
- Concept storefront and multi-scenario store lighting
- Rapid site mobilisation to mall standards
- Electromechanical coordination above suspended ceilings
Industrial
06 / 06Machine and line feeds, motor control centers (MCC), Ex-proof (ATEX) systems and industrial process-safety solutions for heavy industry and manufacturing.
- Industrial MCC and smart-drive (VFD) panels
- Power distribution and busbar systems
- Process safety and emergency interlock systems
- Ex-proof (ATEX) hazardous-area infrastructure
01
Sports Facilities
Field lighting designed to international standards, uninterrupted broadcast and media infrastructure, spectator comfort and integrated security automation.
- High-efficiency, scenario-driven field lighting to UEFA/FIBA norms
- HD/4K live-broadcast media backbone and professional PA
- Spectator access control, turnstile integration and security systems
- Wide-area lightning protection and earthing systems
02
Office Fit-out
Flexible power distribution for new-generation open-plan offices, smart lighting scenarios, high-performance data infrastructure and integrated building automation.
- DALI smart lighting and HVAC control
- Cat 6A / Cat 7 structured cabling, data backbone and certification
- KNX integration and smart-building solutions
03
Residential
MV substation and LV main distribution, unit and common-area energy management, landscape lighting and uninterrupted power infrastructure.
- Slab conduiting and riser works critical for residences
- Fit-for-purpose solutions for common areas and parking
- Substation, LV distribution, meter boards and backup power
- ELV rooms built on fiber-optic and structured cabling
- Landscape and exterior lighting works
04
Education
Campus-scale electrical design and installation tailored to classrooms, laboratories and auditoriums.
- Precision power and laboratory infrastructure
- Campus-wide fiber-optic and ELV backbone
- Auditorium stage sound and professional lighting integration
- Central campus automation and energy management
05
Retail
Lighting design, storefront, in-mall stores and energy sub-metering.
- Concept storefront and multi-scenario store lighting
- Rapid site mobilisation to mall standards
- Electromechanical coordination above suspended ceilings
06
Industrial
Machine and line feeds, motor control centers (MCC), Ex-proof (ATEX) systems and industrial process-safety solutions for heavy industry and manufacturing.
- Industrial MCC and smart-drive (VFD) panels
- Power distribution and busbar systems
- Process safety and emergency interlock systems
- Ex-proof (ATEX) hazardous-area infrastructure
Selected Work
On site. Measurable outcomes.
2025 · CompletedOffice Fit-out
2025 · CompletedOffice Fit-out
Maslak BOX
2023 · CompletedRetail
BOSS Akasyapark
2023 · CompletedOffice Fit-out
Soylu Gıda — Fişekhane
2022 · CompletedRetail
Straborn Coffee — AKM
2023 · CompletedRetail
Unifree Store — İstanbul Airport
2026 · CompletedRetail
Ferragamo — İstanbul Airport
2024 · CompletedSports Facilities
Göktürkspor Stadium
Clients
From industry to public institutions — a few of the teams we work with:
Contact
Let's start a project.
Reach our team directly for electrical engineering consultancy, design, or site supervision on your project.