Since 1921, owners and builders throughout the Central Coast have selected Geo. H. Wilson to design, install, and maintain their mechanical projects.  As an affiliate of ACCO Engineered Systems, we are an employee-owned family of companies dedicated to the design, fabrication, installation, maintenance and service of commercial HVAC, refrigeration, plumbing, process piping, and building automation systems. This integrated delivery system provides customers with the most practical, cost effective solutions for their particular mechanical and control system requirements.

We focus beyond the initial installation to ensure that your system is designed to last and function reliably for many years under varying conditions and requirements. Our engineers utilize the experience of our commissioning and service professionals to design systems that will be serviceable and perform efficiently for the long term.

Whether your project is a low or high-rise office building, a shopping mall, school, higher education,   hospital, semi-conductor fabrication facility, or pharmaceutical manufacturing plant…Geo. H. Wilson can design, build, install, and maintain mechanical systems to meet your needs.

Project Management

When we accept a job, we accept all the responsibility that goes with it. A Project Manager supervises the project from the initial contact through conceptual studies, engineering design, energy studies, sales, and construction (including final start-up and balancing). The responsibility continues through final acceptance and the warranty period.

For your project, a Geo. H. Wilson Project Manager will be your personal representative. This individual is your contact from the inception of your project through completion and turnover. Your Project Manager’s responsibility is to get your job done…on time and on budget.

Our parent company, ACCO Engineered Systems, pioneered this single source of responsibility to assure that we adhere strictly to all of the project requirements, quality demands and time schedules. As a result…we meet your deadlines. The success of this approach as made us the largest and best mechanical contractor on the west coast.

Keeping on schedule requires a large amount of up-to-date information. We maintain a computerized database on all projects to allow project managers to have immediate access to up-to-date labor reports, equipment and materials status, and time and cost accounting.

Geo. H. Wilson has successfully completed projects of every variety- from simple warehouse installations to complex  facilities requiring the most advanced technological skills.

We can work with an engineer of your choice to develop and analyze systems for your project, or you can utilize our in-house engineering resources to design the system for your project that meets your quality and budget requirements. In both cases, we guarantee price, performance, and schedule.


To facilitate cost evaluation, we have computerized and digitized estimating systems to provide:

  • Speed and accuracy
  • Material list and quantity print outs
  • Generic take off for any type of system and various materials
  • “What if” situations for evaluating alternatives
  • Tracking of revisions and changes for complete cost evaluation
  • Feedback for scheduling
  • Material pricing updated weekly
  • Interactive with CADD and CAM for increased productivity


Geo. H. Wilson’s commissioning program ensures that the performance of installed equipment and its peripheral systems operate at their peak performance by adhering to the design specifications for which the systems were designed.

  • NEBB Certified – Air & Water Balancing
  • Re-Commissioning (Point-To-Point)
  • Assessment of As-Built Systems & Specifications
  • Retro-Commissioning of DDC Controls
  • Assessment of system’s capabilities
  • Design / Build Solutions to Optimize Energy Efficiency
  • Development of Algorithms with performance driven strategies
  • Calibration, Trending and Optimization of Critical Systems
  • Root Cause Analysis of Existing Buildings issues
  • All Work performed by in-house specialized technicians
Benefits of Commissioning:
  • Environmental Improvements
  • Occupant Comfort, Indoor Air Quality
  • Energy & Sustainability Attributes
  • Energy Star Rating, LEED® Credits
  • Energy & Atmosphere
  • Indoor Environmental Quality
  • Incentive Rebates Eligibility
  • Retro-Commissioning Program
  • SPC Program (Calculated Approach

Delivery Methods

With the ever-expanding list of project delivery methods, Geo H Wilson dedicates significant effort and resources to remaining at the forefront of the industry in providing a finished product that meets all of the client’s requirements.  Delivery methods include:


Geo H Wilson  brings decades of experience to construction projects that mandate a fixed-price bid on a detailed set of construction documents. We examine the plans and specifications, determine the lowest possible cost, and then build exactly what was designed. By working closely with the architect and engineering teams, our project managers anticipate issues and work to avoid change orders and cost overruns.


In the Design-Assist method of delivering work, Geo H Wilson engineers work closely with your design and construction team to clarify the operational benefits of the project. We will analyze alternates on a price/performance basis. Our engineer’s knowledge of installation, maintenance, and long-term operating costs will help deliver the maximum value for dollars spent. When appropriate, we’ll recommend using alternative designs, different materials, and more efficient installation methods.


Design-Build brings together a partnership of the owner, architects, general contractors, engineers, and trades. As part of the design-build team, Geo H Wilson  engineers analyze the owner’s requirements, reviewing concepts and systems on a price/performance benefit. Realistic project budgets can be established early in the process. Design-Build speeds up the entire construction process as we proceed seamlessly from design into construction with known project costs. Design-Build is the best way to avoid constant change orders, project escalation, and cost overruns.

Integrated Project Delivery

Integrated Project Delivery is a concept that has been integrated into all areas of Geo H Wilson capabilities.  As a design-assist and design-build contractor, we regularly participate in the collaborative design and planning processes, allowing us to figure out the best way to accommodate the unique needs of each project.   Geo. H. Wilson’s Project Managers are unique in that they manage the project’s mechanical scope of work from start to finish, playing an integral role in the design, cost control, construction, commissioning and handover.

Lean Production & Construction

Internally, Geo H Wilson manufactures much of its own materials and has implemented Lean methods in order to reduce costs and inventory in our shops.  We rely on pull scheduling which reduces the amount of sheet metal and pipe we keep on hand and requires effective project planning and efficiency.  Our shops also provide the opportunity to prefabricate and preassemble much of what is delivered to the field, increasing quality due to the clean, controlled shop environment and reducing labor and installation time in the field.  With shops throughout the Western United States, we are able to make more frequent just-in-time deliveries consisting of the exact amount of materials needed for a specific portion of the job.  This reduces the impact on other trades in the field by minimizing the amount of material staged on the floor and around the job site.

Target Value Design

Target Value Design (TVD) is a method closely aligned with Lean production, Lean construction and Integrated Project Delivery. It consists of designing a project to the customers predetermined budget requirements, rather than establishing cost after the design is completed. TVD builds cost into the design process and minimizes waste in the production and construction process. It is a fundamental change in thinking from “expected costs,” to “budgeted costs.” The guiding factor for TVD is that the target cost for a project should never be exceeded. Typically, cost follows design, but on projects where TVD is used, cost dictates what gets designed to ensure that the target cost is not exceeded. One mechanism for providing this rapid cost feedback is extracting quantities from the virtual model and model-based estimates. As a result, rapid cost feedback to the design team is paramount in this process.


Geo. H. Wilson maintains a full-time, and trained rigging crew. Listed below are just a few of the many benefits of having a specialized in-house rigging department:

  • Focused Training
  • Comprehensive Safety Program
  • Control of Specialty Equipment
  • Extensive Experience
  • Familiarity with Local Codes
  • Proven Pre-Planning Checklist
  • Team Environment

Rigging can be one of the most dangerous construction operations. Our rigging department takes special care to ensure that things are done correctly and safely every time. Our rigging equipment is inspected, tested and certified on a regular basis, as well as stored properly when not in use. We use fully equipped rigging trucks, eliminating the prospect of not having the right tool.

It is not uncommon for members of a rigging crew to perform different jobs in their position. One day they may be joining copper pipes, and the next day they may be lifting chillers weighing more than 20 tons to the roof of a building. This is never the case at Geo. H. Wilson. Our rigging crew is dedicated solely to rigging, which means that they are experts in their trade, and customers can rest assured that the crew working on their project is made up of only the most highly-skilled workers.

Scheduling rigs through Geo. H. Wilson’s rigging department assures proper pre-planning. The correct permits will be in place, traffic plans will be coordinated, affected parties will be notified, and the end result will be satisfaction for all parties.

Whether by crane, helicopter or rolling in by dolly, our rigging crew is trained and equipped to perform the task safely and correctly every time

250 Harvey West Blvd. Santa Cruz CA 95060 • (831) 423-9522
FAX (831) 423-9903
© 2023 Geo. H. Wilson
Contractors Lic# 1042403