Denka Technology

Precast wall repair

They on site at the quoted time. And work very well to get the job done. Happy with the work, and they are friendly.

Repaired back precast wall

The job was done to expectation even with small hiccups from our end which they resolved very well. Communicated well and very satisfied with outcome. Will definately recommend..

Supply & delivery of concrete wall material.

Professional service with a quick turnaround and reasonable pricing.

Pre-Cast Wall Repair

Rhyno from Denka was exceptionally responsive enabling me to get my wall repaired in less than 24 hours from first making contact with DENKA! Fantastic

Wonderful, efficient service

Have been having issues with our electric fence for a while and have tried a few companies to fix it to no avail! However Denka team arrived and resolved everything promptly and so effectively! Lovely people and great team! Will definitely recommend them and use them again

Excellent workmanship

I had Deniz and the guys from the local pros Denka Technoligies to fix my precast wall They’re were very professional and efficient and did an excellent job for me I highly recommend them !

Pre Cast wall extension

They went over and above. They extended my pre-cast wall and also re-installed my electric fence. It's hard to find a reliable contractor like this. Extremely helpful and friendly. Thank you for the great professional service

Execellent workmanship

They did a brilliant job in extending my precast wall and refitting the electrical fence

Amazing service!

Precast extension and re fitting of electric fence.

Dedicated Service

Denka have provided a dedicated team, particularly Herman and Gift, who made sure that every requirement of the job was completed to my satisfaction, with a 2-year guarantee. A pleasure to have them on my premises.

Precast walling

Herman and his team was excellent, thank you for fixing our front wall

Great service

Great service pleasure to deal with them

Gate Repairs

Your services was prompt and Herman came and fixed our front gate Highly recommend with superb pricing Thank you guys

Precast walling and gate service

Fantastic service. Professional and friendly team that got the job done perfectly. Very happy with the service received.

Professional and prompt service

I was very impressed, was referred to Deniz and his team by a friend this morning , they were excellent a pleasure to deal with ,they Herman ) arrived on time and kept me constantly updated ,and pricing was excellent for work done and work was excellent, I would use them again in the future

Extra mile

I’m am delighted with the work done on repairing my wall. More so because I had been told that the type of precast is no longer available anywhere but the team made a plan and got a customised replacement that matches the existing wall. Clean job!!

Awesome service and workmanship

Excellent quality service from Denka Technology. Very professional and thorough in completing the brick precast wall, electric fencing and installation of the energizer.

Phenomenal service

Our broken gate was fixed same day. The service wa excellent & such friendly service!!

Quick and highly professional

Denka came and fixed our wall in December 2025, they where highly professional and got the job done well in short time, offering great advice afterwards

Installation of gate motor

Good service. Friendly and helpfull worker. Job was well done.

Incredible service

As South Africans we became so used to poor service - not these guys! Great communication and updates, good service and workmanship. A job well done Herman and Thomas. Kotie, is amazing - Thank you!

Repair of precast wall

Well managed and planned.

Repair to concrete wall panelling

Very professional and prompt Service - Price was good..

Fast efficient and very reasonable

Denka was very accommodating from the start. Being an estate multiple quotes and options need to be considered. Denka had no issue accommodating any request. Their quotes came in extremely competitive and overall I was very satisfied by the quality of their workmanship.

Good service

Thank you Kotie for helping us quickly, and thank you Herman for your service. Very friendly people indeed😇

Superb: Start to Finish

From the moment I contacted them, they immediately had a real person get in touch. Their communications network - especially WhatsApp - is something others can learn from. The guy who did my installation and his team were very professional and thorough. Price was also much better than other quotes. Highly recommended

Excellent service delivery

Denka Technology is the best. I have never seen such range of trust and dedication in a lifetime. Thank you Denka. With the level of service and customer satisfaction you render, you will grow exponentially in your business. Keep it up. I will 💯 refer people to you without any doubt. Thank you once again Kotie and the manager are the best 💪🏽 5 Star ⭐

Great efficient service

The team was friendly helpful and fast.

Professional quality work reasonable pricing

Never heard of Denka before Reached out online with a brief description of what I need done A real human reached out over WhatsApp and phone call to assist Short turn around from quote to install Great service from Herman and team who came to install very friendly and professional

SA Bonsai

Best Services in Randfontein and Krugersdorp. Phone in the afternoon the next day Denka at my nursery, and all work was done very efficiently and very professionally, Thank you