Mechanical Systems Made Easy
Expand Consulting Group strives to differentiate ourselves by performing top customer service, understanding of technical and non-technical system processes and working through challenges with a team friendly approach.
We bring functional, practical, and cost-effective technical solutions to match your needs.


Expand Consulting Group (ECG) is a Phoenix based engineering company proficient in HVAC and plumbing systems. Started in 2022, ECG has a vast experience of projects ranging both large and small and across many sectors, system types and procurement methods.
Our team is experienced in leading full architectural and engineering teams or working alone to deliver valuable solutions to meet client needs.



Expand Consulting Group (ECG) is a Phoenix based engineering company proficient in HVAC and plumbing systems. Started in 2022, ECG has a vast experience of projects ranging both large and small and across many sectors, system types and procurement methods.
Our team is experienced in leading full architectural and engineering teams or working alone to deliver valuable solutions to meet client needs.

Our Services
Assessment and Analysis
Investigation, validation and planning of existing systems and potential replacements to maximize owner value.
Design
HVAC and Plumbing construction drawing generation to lead field efforts in any manner of delivery, Design-Bid-Build, Design-Build, Construction Manager at Risk, etc.
Construction Management
Field oversight and validation of system installation to ensure functional and top-of-class finished product is completed.
We want to serve you!
We are currently registered in the following states:

Whether new construction, repair or alteration, we are committed to deliver successful projects from initial concept through design, installation and operation.
Sectors We Serve:
Federal
State
Department of Defense
Commercial
Industrial
Municipal
K-12
Food Service
Hospitality
Multi-family
Administration
Nationally Registered
While we are based in Phoenix, AZ, we can provide services nation-wide for Federal, State, Department of Defense, Commercial, Industrial Sectors, and more.
10+ Years Experience
We have over 10 years of exerience generating innovative and detailed engineered solutions.
Quality Mechanical Engineering & Design Services
Our client feedback speaks for itself. Whether we lead full architectural and engineering teams or work alone, we have the expertise to generate high caliber solutions.
Testimonials
“I have worked with Emilio Gonzalez for over 10 years…We have worked or collaborated on many projects over the years, all with great results. His attention to detail works well on the front-end producing budgets, besides getting out from behind the desk to work out issues in the field.”
Read Full Testimonial Here
To whom it may concern,
I have worked with Emilio Gonzalez for over 10 years, starting when we both worked for different firms. I mention this as a testimonial to our working relationship over the years, not directly related to companies we worked for.
I have always found him very knowledgeable, easy to work with, and open to alternate ideas. That last item is not common in the engineering/design field and has been a welcome change from the typical process.
We have worked or collaborated on many projects over the years, all with great results. His attention to detail works well on the front-end producing budgets, besides getting out from behind the desk to work out issues in the field. This may be the most important trait, the flexibility to analyze and solve problems on the jobsite and listening to input from the contractor & owner.
In summary, I would highly recommend Emilio Gonzalez to anyone looking for quality Mechanical Engineering & Design Services.
Recent Projects:
- Tempe ESD – Sanchez Administration Building chiller & pump replacements
- Buckeye H.S. – Central plant retrofit/upgrade
- Connolly E.S. – Chiller & pump replacements Feel free to contact me with any questions.
Sincerely,
Kevin D. Flores
Project Manager
“Tempe Elementary School District #3 has been working with Emilio Gonzalez for the past six years for mechanical design. Emilio’s professionalism, knowledge, and attention to our needs as well as budget, have always exceeded our expectations.”
Read Full Testimonial Here
Tempe Elementary School District #3 has been working with Emilio Gonzalez for the past six years for mechanical design. Emilio’s professionalism, knowledge, and attention to our needs as well as budget, have always exceeded our expectations.
Emilio has helped us with simple heat pump replacements, large evaporative cooling system projects, as well as very complex central plant replacement projects, while always keeping efficiency, sustainability, and redundancy at the forefront of his design. His knowledge of building automation systems and program logic is unmatched. Emilio is our “go to” Engineer whenever we have a mechanical system project, regardless of the size.
Thank you
Dave Farmer
Director of Facilities Management
“[Emilio’s] understanding of Mechanical Systems is superior and has been a tremendous asset to our company as our Designer of Record. His ability [to] visualise the end result while working with limited budgets without compromising the deliverable has been outstanding.”
Read Full Testimonial Here
To whom it may concern,
This letter is to validate the integrity and professionalism of Emilio Gonzalez. His [Emilio’s] understanding of Mechanical Systems is superior and has been a tremendous asset to our company as our Designer of Record. His ability [to] visualise the end result while working with limited budgets without compromising the deliverable has been outstanding. He has worked well with our Project Managers and Superintendents on various projects that include Military, Federal and Municipalities. A team leader and a great asset to Mechanical Design Professionals. I wish him the very best and I would give my highest recommendations to Emilio Gonzalez.
Sincerely,
Jose Grandado
President and Construction Manager
“I have worked with Emilio Gonzalez since 2019… Emilio is detail oriented and provides in-depth details on projects he oversees, from the design phase to the final walk through at completion of a project.”
Read Full Testimonial Here
I have worked with Emilio Gonzales since 2019 on multiple projects with Globe Unified School District. Emilio is detail oriented and provides in-depth details on the projects he oversees, from the design phase to the final walk through at completion of a project. Emilio’s engineered plans are detailed. He is excellent at coordinating on-site visits with contractors. He frequently visits the job sites to ensure contractors do not take short-cuts on the project. As he works on projects, he provides frequent updates and works to ensure detail and accuracy on punch walks. I would recommend his work for any project that demands high-quality work to be done.
Sincerely,
Aaron L. Gourdin
Supervisor or Mainenance/ Facilities
Be More Energy-efficient
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Frequently Asked Questions
I have problems but I don't know what they are… I just want it fixed. Can you help?
Absolutely, we can work with you to assess your existing systems and find the root cause of the problem. After identifying the problem, we can move forward with a design solution or work with a contractor of your choice to get the job done.
I have a project and I need it done quickly. Can you help?
We have a depth of experience with design-build projects. We can bring a team to the table or join part of yours.
Can you do work in any state?
Yes! We have a national registration that allows us to move quickly in getting registered in your state.
How do I request engineering services?
Please fill out the contact us form and we will reach out to you and get the ball rolling.