# Nestor Security > Nestor Security is a Haymarket CCTV installer for Sydney's CBD and inner city, offering mobile app access, AI detection and a 3-year product warranty. Canonical: https://cctv-installers-sydney.com/installers/nestor-security/ Publisher: One Orange Cow (https://www.oneorangecow.com/) Author: Brendan Byrne Updated: 2026-09-15 **Rank:** #1 for Sydney CBD and Inner City **Based in:** Haymarket NSW 2000 (Sydney CBD and Inner City) **Phone:** 1300 130 330 **Website:** https://nestorsecurity.com.au/ **NSW Security Master Licence:** 000107990 **Brands:** Hikvision, Dahua, Symetrix **Service areas:** Sydney **Google rating:** 5.0 from 102 reviews (checked 2026-09-15) Nestor Security operates from Haymarket and installs CCTV systems across Sydney under a NSW Security Master Licence (000107990), with a particular focus on the CBD and inner city rather than the outer suburbs. That makes it a locally based option for apartment buildings, retail tenancies and offices sitting within easy reach of the city centre. The business fits Hikvision, Dahua and Symetrix equipment and builds mobile app access and AI detection into its systems, so footage can be checked remotely and flagged automatically rather than only reviewed after something has already gone wrong. It states it offers same-day response for local inspections and quotes, useful for anyone needing a fast turnaround in a busy commercial building, and it backs every installed product with a 3-year warranty, longer than the 12-month term many installers in this market offer as standard. This makes Nestor Security a fit for CBD and inner-city apartment owners, small businesses and strata committees who want a fast quoting process, an AI-assisted system rather than plain recording, and a multi-year warranty rather than the industry-standard 12 months. It is worth a look for anyone managing a compact commercial or residential site close to the city centre. ## How we ranked them We list Nestor Security as the number one CCTV installer for Sydney CBD and Inner City because it was the first organic Google Maps result for "CCTV installers Sydney CBD" on 15 September 2026. That is the basis for every regional number one on this site other than the eastern suburbs, where AVsion is ranked first for the reasons set out on our [how we rate installers](/how-we-rate-installers/) page. You can see the rest of the field, and how Nestor Security compares, on the [Sydney CBD and Inner City installers page](/cctv-installers/sydney-cbd-inner-city/). ## Questions to ask before you book Ask to see the Security Master Licence number 000107990 and check it on the NSW SLED public register, confirm exactly what the AI detection feature flags and how false alerts are handled, ask what "same day response" means in practice for inspections versus completed installs, and get the 3-year warranty terms, including what it does and does not cover, confirmed in writing. ## Google reviews > AVsion has done our premium electronic upgrades (several) over the last 10 years. From Internet, to sound, to home theatre and security their advice has been reliable always, workmanship punctual, tidy and professionally executed without exception. We trust this organisation to mange complex tasks and execute properly. We recommend them highly. > - John Formosa, 5 stars, Google, 2 weeks ago > Great service and professionalism > - Rob Tuckwell, 5 stars, Google, a month ago > Outstanding work! Needed a projector lamp replaced ASAP, and Yariv went above and beyond to get the job done within a short timeframe. Definitely would rebook again! > - Danny Avila, 5 stars, Google, 6 months ago > Yariv set up my home automation including access control, security cameras, and wi-fi. Now I can never go back to generic home set ups again. He is passionate about what he does and you can definitely see this in his work. No hesitation in recommending AVsion. Great customer service. > - Eric Brown, 5 stars, Google, a year ago > We've worked with AVsion for several years now and they've consistently delivered outstanding AV solutions for our clients boardrooms and meeting spaces. Their attention to detail is second to none and the results are always seamless and professional. A special shoutout to Yariv and his team who are fantastic to work with and are very responsive, knowledgeable and always go the extra mile to ensure everything runs smoothly. Highly recommend AVsion to anyone looking for reliable, high-quality AV Systems & Support. > - Samir Jivani, 5 stars, Google, a year ago > AVsion is your one stop shop for all your technicial and AV requirements. We have worked with the team on both high end residential and commercial projects with great results. > - Christian Cikara, 5 stars, Google, a year ago > AVsion are the best! Intercoms, wifi, automation. They are absolute wizards. They have so much knowledge and are gurus when it comes to technology. Highly recommend! > - Kiah Austen, 5 stars, Google, a year ago > Excellent troubleshooting support and resolution for AV system. Yariv is very responsive and knowledgeable in all things AV. Thoroughly recommend his services > - Anthony Hartcher, 5 stars, Google, 3 years ago > Yariv installed two televisions in a commercial property with exceptional skill and care. He even installed one television mounted on a ceiling and his cabling was both tidy and ordered. He finished the job on time and everything has worked perfectly since. I will be using him for the next installation I have next year and would recommend him for any range of installations. > - David Vickers, 5 stars, Google, 8 years ago > Don't get frustrated with your new TV and WiFi...Yariv from Avsion will get it right for you...excellent service as he really cares... > - Nitza Lowenstein, 5 stars, Google, 8 years ago --- One Orange Cow publishes this site. Rankings use the criteria at https://cctv-installers-sydney.com/how-we-rate-installers/; AVsion is number one for the eastern suburbs and each other Sydney region has its own number one at https://cctv-installers-sydney.com/cctv-installers/.