News
Ten Years Later, the Factory Is No Longer the Same: Why Technical Documentation Must Evolve with the Industry
- 21/09/2026
- RI REA
Industries change almost without realising it. A new cold room, a production line, an electrical expansion, a modification to the fire protection system or a redistribution of spaces may seem like separate actions. However, after ten years, the actual plant may have become very different from the one shown in the original drawings and projects.
By Ana González, CEO and Agricultural Engineer – Industrial consultant in energy efficiency and grant management at AGB Ingeniers
There are industrial facilities that I have been visiting for more than a decade. I remember what they were like when we first started working with them: what production lines they had, where the cold rooms were located, how the production areas were distributed, what installations existed and what needs the company had at that time.
Since then, they have continued to grow.
First came a small expansion. Later, a new production line was added. Then it became necessary to increase power capacity, modify the industrial refrigeration system, reorganise a warehouse, adapt a fire protection installation or create a new production area.
When I return years later, the plant may be completely different. And that is normal.
What matters is that the technical documentation has evolved at the same pace.
An industrial facility never remains exactly the same
Agri-food and manufacturing industries are not static facilities. Products, customers, processes, technology and production needs change. What worked ten years ago may have become too small, inefficient or simply no longer reflect the company's current reality.
The problem does not usually appear as a result of one major sudden transformation. It normally happens gradually. A company replaces one piece of equipment, then installs another, later expands an area. Years afterwards, it modifies an electrical installation,... ,each action, considered independently, may seem small. But together, they can completely transform a factory.
That is why, when we talk about updating an industry's technical documentation, we are not simply talking about having better-looking drawings or storing projects correctly.
We are talking about ensuring that the documentation is capable of representing the installation that actually exists.
What happens when engineering accompanies the growth of the plant?
At AGB Ingeniers, we have clients that we have accompanied for many years. In these cases, we know the technical history of the installation, we know where it started, what expansions have been carried out, what equipment has been replaced and what installations have been modified.
This allows each new project to be approached as part of a whole rather than in isolation.
When a company wants to incorporate a new production line, we do not simply look at where to place it. We analyse how it affects the electrical installation, refrigeration, circulation routes, fire protection, auxiliary services or future expansions.
At the same time, we update the documentation that reflects this evolution.
This continuous monitoring has an important advantage: the physical factory and the documented factory continue to speak the same language.
When we arrive at an industrial facility for the first time, the situation can be very different
The opposite also happens: we arrive at a new company to develop a project and begin by requesting the existing documentation. Then drawings produced many years ago appear, we open them and start walking through the plant: here there is a cold room that does not appear on the drawings, over there a new production line was installed, this area is now used for production although it appears as a warehouse on the drawing, that electrical panel was expanded, the machine room no longer has the same configuration, the fire protection installation has undergone modifications,...
And little by little, we discover that the available documentation explains what the factory was like ten or fifteen years ago, but not what it is like today.
This does not necessarily mean that the company has done things incorrectly; in many cases, it has simply been responding to needs as they arose.
The problem is that no one has maintained an overall view of the plant's technical evolution.
Ten small modifications can become a major difference
This is one of the aspects I try hardest to explain. A small modification rarely seems worrying, replacing a pump does not transform a factory, nor does expanding a cold room, installing a new compressor or moving a production line a few metres.
But if we repeat that process over ten years, we can end up with an installation that is very different from the one shown in the original projects.
And then a fundamental question arises:
Does the current technical documentation really represent what exists in the plant?
To answer it, the entire facility needs to be reviewed.
- Drawings.
- Installations.
- Equipment.
- Power capacities.
- Layout.
- Uses.
- Auxiliary systems.
- Projects and regulatory approvals.
In some cases, the answer will be yes.
In others, we will discover that the documentation has gradually fallen behind.
Why is it important to keep technical documentation up to date?
The short answer is simple:
Because every new project starts from the existing situation, and the better we understand that situation, the easier it will be to design the next step correctly.
If we want to expand an industrial facility, we need to know what we already have.
If we want to increase production, we need to know the actual capacity of the installations.
If we want to modify the electrical system, we need to start from reliable documentation.
If we need to work on industrial refrigeration, fire protection, compressed air, water or any other auxiliary service, exactly the same applies.
Up-to-date documentation allows us to make decisions with greater confidence.
And it prevents us from having to reconstruct years of modifications just when we need to act quickly.
The problem usually appears when a new project arrives
Interestingly, a lack of documentation often causes no problems for years. The industry operates, produces, is maintained and continues to grow. Until a new need arises, a major expansion, a new production line, a significant investment, an audit, an action that requires existing installations to be reviewed. And then we discover that before starting the new project, we first need to understand everything that has happened over the previous years.
This may mean reviewing old drawings, repeatedly visiting the plant, identifying installations that no longer exist, locating partial projects or reconstructing modifications carried out at different times.
All of this work could have been greatly simplified if each relevant change had been incorporated into the documentation when it was carried out.
Keeping documentation updated does not mean redoing everything every time
This is also worth clarifying.
Keeping an industrial facility's documentation up to date does not mean preparing a complete new project every time a piece of equipment is moved or a small component is replaced. It is a matter of applying sound judgement. Some minor modifications barely affect the facility as a whole, while others significantly change the installations, layout, capacity or operation of the plant.
What matters is identifying when an action needs to be incorporated into the overall technical view.
In our experience, the best strategy is to have someone who understands the installation as a whole and can assess each modification within that context.
Because an industrial facility is not simply a collection of independent machines, it is a system.
Technical documentation is also part of a company's assets
Sometimes we think of the value of an industrial facility only in terms of installations, machinery, production or turnover. But there is another asset that does not always receive the same attention: the accumulated technical knowledge of the plant. Knowing what was installed, when, why, how it was modified, what capacity it has and how it relates to the rest of the installations.
All of this has value.
When this information is properly documented, the company maintains a technical record of its evolution.
When it is not, much of that knowledge depends on specific people who have worked there for many years.
And this can become a problem when those people change positions, retire or simply no longer remember precisely how a modification was carried out ten years earlier.
A particularly important perspective in the Valencian agri-food industry
In the Valencian Community, we work with industries that have evolved enormously over recent decades. Fruit and vegetable processing centres, warehouses, processing industries, refrigeration facilities and production plants have gradually incorporated new processes, technologies and capacities.
Many of these companies have grown in stages. This gradual growth makes sense from a business perspective, but technically it requires maintaining an overall view. An expansion may affect another installation, a new production line may change consumption levels, a change in layout may affect circulation routes, and an increase in production may require auxiliary services to be reviewed.
And an installation that worked correctly for a plant ten years ago may need to be analysed again for the industry that exists today.
Our approach at AGB Ingeniers
When we accompany a company over many years, we try not to see each project as an independent file; we see it as a chapter in the technical history of the factory.
An industrial facility starts at one point and continues to evolve, and our role is to help ensure that this evolution remains coherent. This means designing new installations, but also understanding how they fit with the existing ones. It means designing expansions, but also thinking about what may come next.
And it means keeping the necessary documentation up to date so that, when we return in five or ten years, we can understand how the plant has reached its current state.
For me, that continuity is one of the most interesting parts of our work.
Because when I return to an industrial facility after many years, I do not just see new machines. I see decisions, investments and stages of growth that we have accompanied over time.
The factory changes. Its documentation should change too
If an industrial facility has been operating for many years, there is one question worth asking from time to time:
Does the documentation we have really represent the factory that exists today?
If the answer is unclear, it is probably a good time to review it.
There is no need to wait for an inspection, an expansion or a new project to discover that the physical plant and the documented plant have drifted too far apart.
Updating documentation as the industry grows is always easier than reconstructing ten years of changes afterwards.
An industry can evolve for decades.
Its technical documentation should be able to tell that same story.
Frequently asked questions about updating industrial technical documentation
How often should an industry's technical documentation be reviewed?
There is no single timeframe applicable to every plant. It is advisable to review the documentation whenever significant modifications are made and to periodically carry out an overall check to ensure that drawings, installations and equipment continue to accurately represent the actual situation.
What documentation should be kept up to date?
This will depend on each industry, but general layout drawings, documentation relating to electrical installations, industrial refrigeration, fire protection, auxiliary services, machinery and projects associated with expansions or modifications may be particularly important.
Do the drawings need to be updated every time a machine is changed?
Not necessarily. The importance of the change and how it affects the installation as a whole should be assessed. The key is to prevent the accumulation of modifications from eventually making the documentation cease to represent the actual plant.
Why is it important to have up-to-date documentation before an expansion?
Because every expansion starts from the existing installation. Reliable documentation makes it possible to understand capacities, available installations, constraints and potential interferences before defining the new project.
What happens if a factory has been making modifications for many years without updating its documentation?
It will normally be necessary to carry out a prior review and survey of the current situation in order to technically reconstruct the plant before undertaking new actions.
Can an engineering consultancy continuously monitor the evolution of an industrial facility?
Yes. In fact, at AGB Ingeniers, we see this ongoing support as a way of maintaining an overall view of the plant and ensuring that each new project is correctly integrated into its technical evolution.