DonTech Engineering Specialists

A hassle-free integral service provider

Why Choose Us?

Obligation FREE Quotes

No charge for preliminary work in order to quote

Full Service Engineering

Tank cleaning, inspections, design drawings and more.

Expert Recommendations

We are fully-qualified and experienced to solve your biggest challenges.


Pressure Vessel Design

Pressure vessels are a vital component in many industries. They are often used in high pressure and high-temperature applications. Which result in a high level of danger for employees and the environment. For this reason, pressure vessels are required to be designed in accordance with an accepted design standard and signed off by a registered Professional Engineer where applicable as per the OHS Act and SANS 347. 

What We Offer
DonTech Engineering Specialists offers the following services:
  • Design of pressure vessels in accordance with SANS 347 and ASME.
  • Independent Pr. Eng. sign off of pressure vessel designs.

Aboveground Storage Tank Design

Aboveground storage tanks and bunding need to be designed in accordance with national standards. To ensure the safety of people and the environment. In addition, these designs need to be signed off by a Professional Engineer to ensure the integrity of the design.

What We Offer
DonTech Engineering Specialists provides the following services:
  • Designs of aboveground storage tanks in accordance with SANS 10089, SANS 10131, and API 650 where applicable including Pr. Eng. sign off.
  • Designs of bunding for storage tanks in accordance with the relevant national standards including Pr. Eng. sign off.
  • Risk assessments of aboveground storage tanks and bunding.

Fire System Design

Fire protection systems for buildings, factories, and tank farms are vital for ensuring the safety of people and assets. It is also a legal requirement that fire protection systems comply with the relevant national standards to ensure safety. Companies often operate outdated and poorly maintained fire protection systems. Thereby putting the management and employees at significant risk.

What We Offer
DonTech Engineering Specialists provides the following services:
  • Fire protection system designs for factories in accordance with the relevant SANS and NFPA standards along with Pr. Eng. sign off.
  • Fire protection system designs for storage tanks and tank farms in accordance with the relevant SANS and NFPA standards along with Pr. Eng. sign off.
  • Fire protection system designs for buildings in accordance with SANS 10400 along with Pr. Eng. sign off.
  • Fire risk assessments for factories, buildings, and tank farms storing flammable substances.
  • Independent fire protection system design reviews to ensure installers do not over-design systems. Thereby costing companies unnecessary capital.
  • Inspections of fire protection systems.

Storage Tank Inspections

Inspecting the integrity of storage tanks is vital to reduce the risk to the environment. As well as, the health and safety of persons during operations. Regardless of whether the storage tanks store a hazardous or non-hazardous substance.
Storage tank inspections are also a legal requirement.

What We Offer
DonTech Engineering Specialists offer an API653 certified aboveground storage tank inspector and Professional Engineer to conduct the following:
  • Aboveground storage tank external inspections and testing.
  • Aboveground storage tank internal inspections and testing.
  • Annual waste storage tank inspections and testing.
  • Underground storage tank inspections and testing.
  • Partnering with companies to provide transparent KPI reports of the inspections and maintenance actions of all their storage tanks.

OHS Act Compliance Audits

All businesses are required to comply with the Occupational Health and Safety (OHS) Act as well as its corresponding Regulations. However, most businesses struggle to be compliant due to a large number of regulations. Coupled with the need to operate on a lean staff structure in these difficult economic conditions. This puts the management and employees at significant risk.

What We Offer
DonTech Engineering Specialists offers to partner with any businesses aiming to be fully compliant with the OHS Act by offering the following services:
  • A holistic OHS Act compliance audit including the Regulations and relevant SANS codes. Audits are compiled into a straightforward report so that the management team can know exactly where they are in relation to OHS Act compliance.
  • On-site training of the OHS Act and its Regulations.
  • Annual reviews of OHS Act compliance to track progress. This is a great opportunity for businesses to use OHS Act compliance as a KPI evaluation.

Reliability Centred Maintenance Studies

Industries are becoming more competitive. Whilst still needing to cut down on expenses in these economically challenging times. As a result, maintenance is no longer seen as a cost centre, but rather as a department that can add value through the long-term availability and reliability of equipment. Reliability Centred Maintenance (RCM) studies analyse the functions, failure modes, and consequences of equipment failure in a systematic way in order to apply the appropriate maintenance strategy. This minimises failures and consequences as a result and builds an effective maintenance program.

What We Offer
DonTech Engineering Specialists assists businesses with improving their maintenance strategies through the following services:
  • Detailed RCM studies on individual pieces of equipment and processes which are tracked by a Computerised Maintenance Management System. These studies provide detailed information on possible financial savings, improved maintenance strategies and capital investment opportunities. Using tools such as Failure Mode and Effects Analysis, Fishbone Analysis, and RCM calculations.
  • Progress reports on previous RCM studies. These reports prove the financial benefits of RCM studies and provide feedback on actions coming out of RCM studies. Thereby providing a platform for accountability.

About Us

Donovan Cawdry, Owner of DonTech EngineeringDonTech Engineering Specialists was established on the belief that industries require several key pillars to be accounted for to maintain profitability, sustainability, and efficiency. These pillars being mechanical designs, inspections, maintenance evaluations, and OHS Act compliance are integrated together. They form the foundations upon which a successful industry must be built. Appropriate attention must be allocated to each of these pillars to ensure the sustainability of the industry.

DonTech was founded by Donovan Cawdry who has worked for many years in the petroleum industry. Being a certified Professional Engineer, a certified API653 Tank Inspector, and having an in-depth knowledge of the OHS Act and Regulations. Donovan’s vision was to assist industries with the key pillars in a cost-effective and hassle-free approach. This constructive assistance will enable industries to lower overheads and reduce risk.
Although DonTech is based in Durban, the company does provide services to all industries within South Africa and neighbouring countries.

Call Us On:

072 887 2706

Certificates & Accreditations


Registered Mechanical Professional Engineer with ECSA

Pr.Eng. number: 20160354

Energy API Logo

Certified API653 Aboveground Storage Tank Inspector

Certification number: 56102

Frequently Asked Questions

What information do I need to supply for a quote?

Every service is different and therefore requires different information. The most efficient way to get a quote is to send an email indicating which service you require and include all basic information related to your need. DonTech will then contact you requesting any additional information required in order to provide a quote.

Is the quote obligation free?

Yes. DonTech recognises that the services offered may require preliminary work in order to quote. Therefore the quotes will be obligation-free.

How long does a tank inspection take?

The duration of a tank inspection varies depending on the nature of the inspection and the size of the tank. Inspections can range from a few hours to a few days depending on whether repairs are required.

Once an inspection is completed, what type of report is issued?

DonTech issues a hard copy as well as a soft copy of the report to clients. In addition, DonTech keeps all inspection reports on file at their office in case clients lose their reports.

Does DonTech offer tank cleaning services?

Yes, DonTech does offer tank cleaning services which is often required prior to internal tank inspections.

Does DonTech arrange the relevant Non-Destructive Testing (NDT) services?

Yes, DonTech can arrange for the relevant NDT services if clients request this.

Can DonTech offer design drawings?

Yes, DonTech outsources drawings of designs where it is applicable and required by clients.


What is the first step in getting DonTech to do a design?

Send an email with all the relevant information and DonTech will contact you to arrange a meeting or to attain additional information if required.

What level of detail do the audits provide?

The audits are composed of two sections. The first section is the executive overview which provides a high-level assessment of how compliant a factory or company is relative to each Regulation. The second section is a detailed breakdown of exactly where there is non-compliance which allows for corrective action.

Can DonTech provide training of the OHS Act and Regulations to my employees?

Yes, DonTech can provide training of the OHS Act or any of the Regulations, as required by clients, in order to upskill employees.

Am I legally required to have OHS Act audits done?

No, it is not a legal requirement to have an audit done. However, it is a legal requirement to comply with the OHS Act.
DonTech has extensive experience with integrating OHS Act compliance with the need to maintain efficient production and as a result, provides pragmatic audits to enable companies to become aware of and improve their compliance.

Do I need to have a Computerised Maintenance Management System (CMMS) to enable the RCM studies to be conducted?

Yes, the CMMS enables the past history of assets to be tracked and is vital to determine the maintenance philosophies used for each asset as well as the financial savings that will be gained.

Can DonTech provide a sample RCM study so that I can determine whether it will be worth my while to go down this road?

Yes, DonTech offers one free RCM study to all companies to allow them to see the value of the studies.

What is the pricing mechanism for RCM studies?

DonTech charges clients a once-off amount per RCM study. The pricing is not based on a percentage of future savings.

How do I keep track of my RCM study recommended actions and results?

DonTech offers progress reports on RCM actions and financial gains at predetermined intervals. This allows management to see the benefits of the RCM philosophy and to maintain a level of employee accountability through KPI’s.

Client Testimonials

“We contacted Donovan to assist with a system design of an internal research project. We were extremely impressed with his professional conduct and his thorough mechanical knowledge.”


Director, Calteag Industrial (Pty) Ltd

“Don is highly knowledgeable and the right guy to get the job done.”


Quality Assurance Engineer, Defy Appliances (Pty) Ltd

“Don is highly reliable and performs work with utmost integrity.”

Base Oil Division Manager, FFS Refiners (Pty) Ltd

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