I get this question every single week. Always phrased the same way.
“I’m 35, 42, 49. Am I too late to start commercial diving?”
Sometimes it’s a lad with twelve years on the tools. Sometimes it’s an ex-forces bloke six months out of service. Sometimes it’s an NDT inspector with topside tickets who’s spent his whole career staring at oil rigs from the wrong side of the water.
Here’s the honest answer, and it’ll annoy half the people reading it.
Your age isn’t the gate. Your medical is.
The “cut-off” doesn’t exist
Online forums are full of people who’ll tell you 35 is too old. Or 40. Or 50. I read a thread recently where someone confidently said 50 was the cut-off and nobody bothered to correct him.
It’s bollocks.
There’s no HSE rulebook that says “you’re 41, off you pop.” The rules say you have to pass the Diving at Work Medical. That’s the gate. If you pass it, you’re in.
I know lads still working sat at 60+. I worked with an air diver at 62 a few years back, still as sharp as anyone on the deck. They didn’t get there because the rules made an exception. They got there because they passed their medical every year.
What the medical actually checks
This is the bit you should care about. The Diving at Work Medical (UK HSE) covers:
- Cardiovascular fitness. Can your heart handle the load?
- Lung function. Spirometry, basically can you breathe under load.
- ENT. Ears clear, can equalise.
- Diabetes, blood pressure, BMI in safe range.
- Eyesight (correctable is fine).
- Joint and back condition. You’ll be lugging gear, climbing, working in confined spaces.
What it does not check:
- Your birth certificate, beyond noting the date.
- How many grey hairs you’ve got.
- Whether anyone in your family has ever been offshore.
The bloke who told you 50 was too old was probably looking at his own knees and projecting.
Where age does actually matter
I’m not going to pretend it’s the same starting at 25 and 45. It’s not. Here’s where age genuinely changes the picture.
The first job is harder if you start later
Most schools place graduates by ringing contractors and saying “got a fresh batch, any takers?” Contractors hire from the school pool, and the school pool is mostly 18 to 25 year olds. If you’re 45 and standing in that lineup, you’ve got to bring something they want. Standing there hoping isn’t enough.
Bring a topside trade, real welding hours, NDT tickets, ex-forces background, anything that says I will be useful on day one. That’s the thing that opens the door later in life. Pure baby diver with a ticket is a harder sell at 45 than at 22.
The body takes longer to recover
Anyone in their forties who’s been on the tools knows this. Twelve hour shifts, lifting kit, wet drysuits, sleeping in a cabin you’d refuse to put your dog in (still happens). The recovery time isn’t what it was at 24. You’re not broken, you’re just human. Plan trips and shore-time around it.
The money clock is shorter
If you start at 22 you’ve got a 30 year career ahead. If you start at 45 you’ve got 15 to 20 if you look after yourself. Doesn’t mean don’t do it. Means run the maths on whether you’ll actually recover the school fees plus living costs. Sat tickets cost real money up front. They pay back fast if you work, but you need to be honest about how long you’ve got to work them.
The lads who came in late and did fine
A few patterns from people I’ve actually worked with.
NDT topside to NDT subsea, started at 38. Already had MPI, UT, RAD. Bolted on the diving ticket and was on a job within four months because contractors couldn’t fill UT subsea slots (as rare as rocking horse shit anyway). He earned more in year one than he had in 3 years dry.
Royal Engineer, walked out of the forces at 36. Did his HSE Part 1 and 2, used the discipline and the kit-handling experience as his calling card. He didn’t sell himself as a 22 year old. He sold himself as the guy who’s already used to working when conditions are shit. He still works now.
Welder, 41, took the union route. Skipped the dive school price tag entirely. Went carpentry/welder union, slid sideways into inland diving, climbed from there. Not the route I’d pick in the UK, but it shows there’s more than one ladder based on your geography.
None of them were 22. None of them were too old.
What I’d do if I were starting again at 40
Honest, no marketing waffle.
- Book the medical first. Spend the £150-ish and find out whether you’d even pass. There’s no point quitting your job for an £18k diving school if your blood pressure’s going to kick you out at the gate. Most cities have an HSE-approved diving doctor.
- Audit what you’ve already got. Welding, mechanical, electrical, NDT, rope access, forces, anything. That isn’t “old experience to overcome.” That’s your selling point. The lads I see struggle most at 40+ are the ones who throw away everything they’ve already learned and try to compete as a fresh rookie.
- Pick the bridge qualification, not the dream qualification. Sat is the dream. CSWIP 3.1 or HSE Surface Supplied is the bridge. Bridge first, dream later.
- Phone, don’t email. True at any age but doubly true if you’re older. Most contractors over a certain age won’t reply to email but will talk on the phone for ten minutes.
- Don’t quit the day job until the medical’s passed. Obvious, but I’ve seen people do it the wrong way round.
The bit nobody says out loud
The actual disqualifier for commercial diving, at any age, isn’t fitness. Isn’t age. Isn’t tickets.
It’s whether you can live in a 12 man cabin for three weeks at a time, eat food you didn’t choose, share a shower with strangers, and not fall out with everyone by week one.
That’s the unspoken filter. Schools won’t tell you that because it’s hard to put on a brochure. But it’s the thing that washes more people out than any medical.
If you’ve already done forces, prisons, oil rigs topside, fishing boats, long-distance lorries, you already know whether you can do it. If you’ve spent twenty years in a comfortable office, give it a hard think before you sign anything.
So, are you too old?
If your medical says you can dive, you’re not too old.
If your background gives you a reason for a contractor to hire you, you’re not too old.
If you can handle the lifestyle, and that’s the real question, you’re not too old.
I’ve watched a lot of people at 40+ go from “is this stupid?” to working offshore inside twelve months. I’ve also watched a few 22 year olds quit within a year because they couldn’t hack the silence (see blog on why no one calls).
The age noise is the easy excuse. Strip it away and ask the harder question: do I actually want this enough to put up with the bits nobody warns you about?
If yes, get the medical, build the route, and ignore the keyboard cut-off merchants.
If you’re trying to figure out which route makes sense given your background, the route guide on the site walks through the five entry paths (diver, NDT, rope access, welder/engineer, combo). And if it’s the silence after qualifying that’s eating at you, I wrote a separate post on that. It’s a different problem to the age one but it catches almost everyone.