Longest trading · Updated October 2026
South Australian security installers, longest trading
As of October 2026, the three longest-trading security installers in South Australia on Staying Power are Clarke Security Pty Ltd (started in 1984; 4.8 from 18 Google reviews), Security House Of SA (started in 1985; 4.7 from 12 Google reviews) and Fort Knox Security Adelaide (started in 1988; 5.0 from 98 Google reviews).
- Security Installers compared
- 134
- Google reviews
- 3,410
- Median rating
- 5.0
| # | Business | Rating | Google reviews | Started | Contact |
|---|---|---|---|---|---|
| 1 | Clarke Security Pty Ltd122 Ashley St, Adelaide SA 5032 | 18 Google reviews | 1984 | ||
| 2 | Security House Of SA10 James St | 12 Google reviews | 1985 | ||
| 3 | Fort Knox Security Adelaide | 98 Google reviews | 1988 | ||
| 4 | MSE Alarms25 Murray St, Henley Beach SA 5022 | 33 Google reviews | 1989 | ||
| 5 | MJ Security Doors Adelaide | 47 Google reviews | 1992 | ||
| 6 | Austronics Pty Ltd | 19 Google reviews | 1995 | ||
| 7 | Choice Communications & Security | 49 Google reviews | 1996 | ||
| 8 | Hawks Vision Security | 28 Google reviews | 1998 | ||
| 9 | HYKA TechnologyUnit 3/ 2 Barrpowell Road, Welland SA 5007 | 12 Google reviews | 1998 | ||
| 10 | Net Security Wholesalers4 Commercial St, Marleston SA 5033 | 11 Google reviews | 1998 | ||
| 11 | Adelaide Home Control291 Marion Rd, Adelaide SA 5037 | 61 Google reviews | 2000 | ||
| 12 | First Security ResponseInnovation House, 50 Mawson Lakes Blvd, Adelaide SA 5095 | 28 Google reviews | 2006 | ||
| 13 | Security Adelaide University | 14 Google reviews | 2007 | ||
| 14 | Max Security Doors & Screens | 65 Google reviews | 2009 | ||
| 15 | D&A Security | 21 Google reviews | 2018 |
Staying Power compared 134 security installers in South Australia, with 3,410 Google reviews between them. Of these, 15 meet this list's method. The median rating is 5.0 from a median of 9 reviews.
Of the security installers compared, the most reviewed is Jim's Antennas Adelaide, with 275 Google reviews at 4.9.
How this list is ranked
Businesses are ranked by the year they started, as their own website states it, earliest first. Only businesses rated 4.0 or better from at least 10 Google reviews are listed.
The year is the business's own statement and is not checked against a register, and age alone says nothing about quality.
Questions
- Which security installers in South Australia have been trading the longest?
- As of October 2026, the three longest-trading security installers in South Australia on Staying Power are Clarke Security Pty Ltd (started in 1984; 4.8 from 18 Google reviews), Security House Of SA (started in 1985; 4.7 from 12 Google reviews) and Fort Knox Security Adelaide (started in 1988; 5.0 from 98 Google reviews).
- How does Staying Power rank security installers in South Australia?
- Businesses are ranked by the year they started, as their own website states it, earliest first. Only businesses rated 4.0 or better from at least 10 Google reviews are listed. The year is the business's own statement and is not checked against a register, and age alone says nothing about quality.
- How many security installers in South Australia did Staying Power compare?
- Staying Power compared 134 security installers in South Australia, with 3,410 Google reviews between them. Of these, 15 meet this list's method. The median rating is 5.0 from a median of 9 reviews.
- Can a business pay to be listed or to rank higher?
- No. Every business is ranked by the same published method, and no business can pay to be listed or to move up.