Business · Contact details
Heat Tech Geysers Contact Details
To contact Heat Tech Geysers, call +27 10 745 9910 (Customer Service), or email info.za@aristonthermo.com (General / data-protection email).
The Heat Tech geysers customer service number is now +27 10 745 9910, and after-sales and repair service is +27 10 745 9911, both run by Ariston. Heat Tech Geysers was the Centurion-based South African geyser maker that became Ariston Thermo South Africa (Pty) Ltd, and the Heat Tech brand has been replaced by the ARISTON brand.
The old heattech.co.za website is no longer Heat Tech’s: the domain has lapsed and now shows unrelated content, so do not use it. The current official site is ariston.com/en-za. For warranty questions, see Heat Tech warranty contact details.
Heat Tech geysers contact details at a glance
| Route | Details |
|---|---|
| Customer Service (customer care) | +27 10 745 9910 |
| After-Sales Service | +27 10 745 9911 |
| After-sales hours | Monday to Friday 07:30 to 18:00; Saturday, Sunday and public holidays 07:30 to 15:30 |
| Contact form (send a request) | ariston.com/en-za/support/ |
| General / data-protection email (Ariston Thermo South Africa) | info.za@aristonthermo.com |
| Physical address | 294 Barolong Street, Sunderland Ridge, Centurion, 0157 |
| Postal address | PO Box 8446, Centurion, 0157 |
Official contact channels
Ariston’s South African support page splits its phone lines in two:
- Customer care: for a specific need, call Customer Service on +27 10 745 9910.
- After-sales service: for repairs and service on your geyser, call +27 10 745 9911. This line is open Monday to Friday from 07:30 to 18:00, and on Saturday, Sunday and public holidays from 07:30 to 15:30.
The same page has a contact form. Ariston says it will contact you as soon as possible after you fill it out. For written queries, Ariston Thermo South Africa also gives the email address info.za@aristonthermo.com.
Older Heat Tech numbers and mailboxes still appear in search results but are not on Ariston’s live pages. Use the numbers above.
What this organisation provides
Ariston South Africa sells small- and large-capacity water heaters for homes and small commercial use: electric, gas and solar systems. Its South African product ranges include electric storage geysers such as the Axios geyser, instant electric heaters, gas instant heaters and solar water heaters.
Address and operating information
Ariston Thermo South Africa (Pty) Ltd is at 294 Barolong Street, Sunderland Ridge, Centurion, 0157. Its postal address is PO Box 8446, Centurion, 0157. After-sales service hours are Monday to Friday 07:30 to 18:00, and weekends and public holidays 07:30 to 15:30. Ariston does not publish separate hours for the customer care line.
Support and escalation routes
Ariston does not publish a separate escalation line. If a repair or service call is not resolved through After-Sales Service on +27 10 745 9911, put the problem in writing through the contact form or to info.za@aristonthermo.com, with your geyser details and any reference number.
Other companies with names from G to H are listed in the business directory, G to H listings. For more companies, browse the business hub.
Frequently asked questions
What is the Heat Tech geysers contact number?
Heat Tech is now Ariston. Call Customer Service on +27 10 745 9910, or After-Sales Service on +27 10 745 9911 for repairs.
What are the Heat Tech after-sales service hours?
Monday to Friday 07:30 to 18:00, and Saturday, Sunday and public holidays 07:30 to 15:30.
What is the Heat Tech email address?
Ariston Thermo South Africa uses info.za@aristonthermo.com.
Where is Heat Tech based?
Ariston Thermo South Africa, formerly Heat Tech Geysers, is at 294 Barolong Street, Sunderland Ridge, Centurion, 0157.
Is heattech.co.za still the official website?
No. The domain has lapsed and shows unrelated content. The official site is ariston.com/en-za.
Sources
- Ariston South Africa, Support: ariston.com/en-za/support/, read 2026-09-26
- Ariston South Africa, Privacy: ariston.com/en-za/privacy/, read 2026-09-26
- Ariston South Africa, Home page: ariston.com/en-za/, read 2026-09-26