Electrical Contractors and Engineers - Leesburg, FL


ESI's engineering team has been developed over the years to fulfill any project's design requirements, regardless of size or scope. We maintain state-registered engineers on staff for one-call project execution.

Engineering Services

As both a successful electrical contractor and an engineering firm, ESI bridges the gap between design and construction. We provide signed and sealed Mechanical, Electrical & Plumbing (MEP) construction documents, as well as all required site lighting design complete with photometric point-by-point calculations. Our complimentary specialties enable us to create more accurate construction documents than most standard engineering firms, helping eliminate costly change orders caused by deficient design documents.

ESI's registered engineers have more than 65 years of combined experience crafting competitive bid and design/build MEP designs for myriad industries, including commercial, medical, retail, institutional, religious, security, parking facilities, theme parks, site infrastructure and lighting, and large residential projects. Our "one call does it all"" approach has fostered successful projects for developers, architects, civil engineers, contractors and business owners throughout Florida.


Control System Engineering
  • Water & Waste Water Plants
  • Specialized Lighting Control Systems
  • Scada Systems
Conceptual Design Engineering
Electrical Engineering
  • Power Distribution Systems
  • Emergency Power Systems
  • Selective Coordination Studies
  • Uninterruptible Power Systems
Field Investigations
  • Document of Existing Conditions
  • Provide Report of Existing Conditions
  • Propose Method of Corrective Action
Infrastructure Design
  • Power Distribution Ductbank System
  • Communication Ductbank System
  • Gas Distribution System
Instrumentation and Control Design
Lighting Design
  • Interior Lighting, Standard and Specialized
  • Specialized Architectural or Theatrical Dimming Systems
  • Parking Facility Lighting
  • Roadway Lighting
  • Landscape Lighting
  • Photometric Point-By-Point Calculations
Lightning Protection System Design
Mechanical System Designs
  • HVAC
  • Plumbing
  • Fire Sprinkler
Peer Review Services
Special System Design
  • Intercom
  • CCTV
  • Telephone
  • Security
  • Fiber Optics
  • Fire alarm
Technical Specifications
Cost Estimating and Cost Control

Unlike typical engineering firms, ESI includes an entire department dedicated to project cost estimating. State-of-the-art technology allows us to produce fast, detailed and accurate estimates. If requested, budgets can be developed and reviewed at the beginning of your project and revised at appropriate milestones. Quality construction documents and a mandatory pre-bid conference encourage competitive bidding for maximum value.

Project Administration

ESI has the experience and manpower to perform total project management through all stages of development, including:

  • Shop Drawing Review
  • Management of all sub-consultants
  • Preparation of contract document package
  • Submissions to state agencies and local plan review officials
  • Assistance with advertisements for bids
  • Pre-bid meeting attendance
  • Project scheduling
  • Assistance at bid opening and evaluation of bids
  • Pre-construction conference
  • Periodic site visits during construction and review of periodic pay requests
  • Meeting reports and issuance of bulletins
  • Substantial completion review
  • Review of close-out documents
  • Final project review
  • Project critique with the client
  • As-built documentation

We employ strict enforcement of document requirements throughout construction with periodic on-site observation, consultation and prompt issuance of field and meeting reports.