Why everyone keeps banging on about MCS-certified installers
Look, I’ll be honest – I thought all this MCS certification stuff was just industry nonsense until my neighbour Dave got absolutely stung. Turns out these certified installers aren’t just box-ticking bureaucrats. They’re the only ones who can actually get you proper warranties, insurance coverage, and those export payments everyone talks about. Miss this bit and you’re basically gambling with five grand.
Dave’s solar disaser (and why I’m still cringing about it)
Right, so Dave three doors down – lovely bloke, bit tight with money – decides he wants solar panels last spring. Gets himself five quotes, ranging from about £4,500 up to £7,200.
Course, he goes for the cheapest one.
“Why would I pay nearly three grand extra for some certificate?” he says to me over the fence. “I mean, come on – solar panel’s a solar panel, innit? They all do the same thing.”
I probably should’ve pushed harder about checking credentials, but you know how it is. Nobody likes being the boring one banging on about paperwork.
Fast forward six months. Dave’s banging on my door, absolutely fuming. Storm had damaged two of his panels, and his insurance company basically laughed at him. Told him they don’t cover “non-compliant modifications” or some such nonsense.
Then he tries applying for that Smart Export thing – you know, where they pay you for extra electricity? Rejected instantly. Apparently you need proper MCS certification for that too. Who knew?
Worst bit though – one of his panels started playing up, making this horrible buzzing noise. Goes to claim on warranty and… nothing. Installation didn’t meet building regs, so warranty’s worthless.
Poor bloke ended up having to rip the whole lot down and start again with a proper company. Cost him another three and a bit grand on top of what he’d already paid.
“Learned my lesson the hard way,” he said to me last week, still looking a bit shell-shocked. “That certificate isn’t just fancy paperwork. It’s the difference between solar panels that actually work and ones that’ll cause you grief for years.”
Proper mess, really. Made me think twice about the whole thing, I can tell you.
What’s all this MCS business actually about then?
After watching Dave’s horror show unfold, I got curious about what this certification actually involves. Turns out it’s quite involved, actually.
Basically, MCS is like the government’s way of saying “these people actually know what they’re doing.” It’s this scheme that checks solar installers properly, makes sure they’re not just cowboys with a van and some YouTube tutorials.
Sarah next door had her panels done by an MCS company about two years back. Their installer was telling me how it works when he came round to fix a loose connection last month.
“Think of it like a driving test,” he says. “You can’t just rock up and claim you can drive – you’ve got to prove it. Same with solar. We’ve had to jump through loads of hoops to get certified.”
Turns out these MCS companies have to employ people who’ve actually been trained properly. Not just watched a few videos online, but proper courses with certificates and everything. They have to appoint someone called a “Nominated Technical Person” – basically someone who’s responsible for making sure every job gets done right.
What surprised me most was how often they get checked up on. It’s not like you pass once and you’re sorted for life. They come round regularly, audit the work, make sure standards haven’t slipped. Bit like MOT tests for garages, I suppose.
And here’s the thing – if you want to install heat pumps or batteries or whatever, that’s separate certification for each bit. Just because someone can do solar doesn’t mean they can mess about with your heating system.
Makes sense when you think about it, really. Though Dave probably wishes he’d thought about it before he signed up with Dodgy Dave’s Discount Solar or whatever they were called.
How d’you actually check if someone’s legit then?
This is where Dave went properly wrong. Anyone can claim they’re “MCS approved” or whatever. Dave just took their word for it.
Turns out there’s actually a proper website where you can look these people up. Who knew? It’s called the MCS Installer Finder or something – just whack in your postcode and it tells you who’s actually certified in your area.
But here’s what I learned from Dave’s mess-up. You’ve got to be a bit pushy about this stuff. Proper companies don’t mind showing you their certificates. The dodgy ones… well, they’ll try and change the subject, won’t they?
I had another neighbour, Margaret, getting quotes last month. Learned from Dave’s mistake, she did. First thing she asks every company: “Right then, what’s your MCS number?”
Legitimate companies just tell you straight up. One bloke even had it printed on his business cards. Another one showed her this plastic certificate thing with fancy security features – looked like a driving licence or something.
But this one company… oh dear. Started waffling about how they’re “working towards certification” and “it’s all the same really.” Margaret showed them the door pretty sharpish after that.
You can actually phone up MCS directly if you want to double-check. Margaret did that with one company just to be sure. They’ve got a helpline and everything – just give them the company name and they’ll tell you if they’re legit or not.
Takes about five minutes to check all this stuff. Dave’s little shortcut ended up costing him months of hassle and thousands of pounds. Makes you think, doesn’t it?
What’s in it for you then, having proper certified people?
Right, so this is where it gets interesting. It’s not just about having nice certificates on the wall.
Sarah’s been really helpful explaining all this, actually. Her installation went smooth as anything, and when she had a little problem with her inverter making funny noises about a year later, it got sorted no questions asked.
Turns out MCS companies have to provide something called Insurance Backed Guarantees. Sounds fancy, but basically means if the company goes bust, you’re still covered. Dave’s lot? Nothing. Company disappeared faster than free drinks at a wedding.
Then there’s all this consumer protection stuff. MCS companies have to join these schemes – RECC or HIES or something like that. Means if they mess you about, there’s someone official you can complain to who’ll actually do something about it.
“It’s like having an ombudsman,” Sarah explained when she was telling me about her inverter issue. “When the company tried saying it was my fault for not reading the manual properly – which was complete nonsense – RECC sorted them out pretty quick. Got it fixed within the week.”
These MCS companies also have to document everything properly. Can’t just turn up, bang a few panels on your roof, and disappear. They’ve got procedures for everything, training records, the lot. Makes them accountable, doesn’t it?
And here’s something I didn’t know – they get checked up on regularly by independent people. Not just self-regulating like some industries. Actual inspectors coming round making sure they’re still doing things properly.
Dave’s crowd? Well, let’s just say accountability wasn’t their strong point.
Why’s the government so fussy about all this certification business?
This bit really opened my eyes, actually. It’s not just bureaucracy for the sake of it.
You know that Smart Export Guarantee thing where they pay you for extra electricity? Well, you can forget about that unless you’ve got proper MCS certification. Dave found this out the hard way when his application got bounced back faster than a bad cheque.
And that zero VAT thing everyone goes on about? Same deal. Without MCS certification, you’re paying the full 20% VAT like a mug. That alone can wipe out any savings from going with a cheaper installer.
Building regulations are another headache. Local council can make you rip the whole lot down if it’s not done properly. Happened to someone on the next street last year – absolute nightmare.
Then there’s insurance. Most home insurance policies won’t cover damage from non-certified installations. They call it “negligent modification” or something equally sniffy. Dave’s storm damage claim got thrown out because of this exact issue.
“Look,” said the Building Control bloke when he came round to check Dave’s remedial work, “these incentives exist to encourage proper renewable energy, not bodge jobs that cause more problems than they solve.”
Makes sense really. Government doesn’t want to be subsidising cowboys who give the whole industry a bad name.
And here’s the thing – any future schemes they bring in will probably have the same requirements. So if you go non-certified now, you’re locked out of whatever comes next too.
So how much extra are we talking for proper certification then?
Right, this is what everyone wants to know, isn’t it? Because let’s be honest, money talks.
From what I’ve seen around the neighbourhood, proper MCS installers charge maybe 15-25% more than the dodgy ones. Sounds like a lot, but when you break it down…
Think about it. These companies have to pay for proper training – thousands of pounds every year per person. They need proper insurance, which isn’t cheap when you’re working on people’s roofs with electricity. They use decent kit that’s actually been tested and approved, not cheap imports that might catch fire.
And the work takes longer because they’re doing it properly. Sarah’s installer spent half a day just on the paperwork and safety checks before they even touched her roof. Dave’s lot turned up and started drilling holes within ten minutes.
Sarah paid £7,200 for her system. Dave initially paid £4,500 for his. But Dave’s “bargain” ended up costing him over £8,000 once he’d had to get it done properly. And Sarah’s system works perfectly, earns her money every month, and she sleeps easy knowing it’s not going to burn her house down.
“You’re not paying extra for pieces of paper,” Sarah’s installer told me. “You’re paying for competence, proper materials, and genuine peace of mind. When you look at what can go wrong, it’s actually incredible value.”
Hard to argue with that logic, really. Especially after watching Dave’s saga unfold.
What should you actually ask these installer people then?
After Dave’s experience, I’ve got quite good at vetting these solar companies. Margaret asked me to help when she was getting quotes, actually.
First thing – get them to show you their MCS number. Proper companies have it on their cards, their vans, their quotes, everything. They’re proud of it. If someone starts umming and ahhing about this, that’s your red flag right there.
Then ask which specific tech they’re certified for. Just because they can do solar doesn’t mean they can mess about with batteries or heat pumps. Margaret caught one company out on this – they claimed they could do everything but were only actually certified for solar PV.
“Who’s your technical person and what’s their qualification?” That’s a good one. Proper companies will tell you straight up. Dodgy ones will try to bamboozle you with jargon or change the subject.
Ask how many jobs like yours they’ve done recently. You don’t want to be someone’s first attempt at your type of roof. Sarah’s installer had done dozens of Victorian terraces like hers – knew exactly what he was dealing with.
And definitely ask about warranties. Not just “oh yes, everything’s guaranteed.” What exactly is covered? For how long? What happens if something goes wrong? Dave’s crowd promised him the world but couldn’t back any of it up when push came to shove.
Margaret’s got quite good at spotting the time-wasters now. “If they can’t answer basic questions about their own business without looking stuff up,” she says, “then they’re probably not the right people for the job.”
The good companies answer everything straight away because they know their stuff. The cowboys… well, they tend to get a bit defensive, don’t they?
How d’you find decent MCS people in your area then?
After all the drama with Dave, several people in the street have asked me about finding proper installers.
That MCS website’s actually quite handy – you just stick in your postcode and it spits out a list of certified companies near you. Beats trawling through Google ads trying to work out who’s legitimate.
Word of mouth’s good too, but you’ve still got to check independently. Margaret’s next-door neighbour recommended someone who turned out to have let their certification lapse six months ago. Easy mistake to make, but could’ve caused problems down the line.
I always tell people to get quotes from at least three or four different MCS companies. Not just for price comparison, but to get a feel for how they operate. The cowboys tend to stick out like a sore thumb when you’ve got proper companies to compare them against.
And whatever you do, don’t just go for the cheapest quote. We’ve all learned that lesson from Dave’s experience, haven’t we? Look at the whole package – certification, warranty terms, how they answer your questions, whether they turn up when they say they will.
“Price is what you pay,” Sarah always says. “Value is what you get.” And after watching Dave’s saga unfold, I reckon she’s got a point.
What if you find out your installer’s a dud after they’ve already started?
God forbid you end up in Dave’s situation, but it does happen. Some people genuinely don’t realize their installer isn’t properly certified until things start going wrong.
If you’re in that boat, first thing is stop paying them any more money. Don’t care what sob story they give you about needing cash for materials or whatever. If they’re not properly certified, they shouldn’t be doing the work.
Get onto your credit card company if you paid by card – they’ve got better protection than debit cards. Contact Citizens Advice too, they know all about this stuff and can point you in the right direction.
Dave had to get his local Trading Standards involved, and eventually took the company to small claims court. Bit of a faff, but he got some of his money back in the end.
Prevention’s better than cure though, isn’t it? Five minutes checking credentials before you sign anything can save you months of grief later.
Looking back, Dave reckons the signs were all there – pressure tactics, cash-only payments, vague answers about certification. He just ignored them because the price was so tempting.
“Should’ve listened to my gut,” he said. “If something seems too good to be true, it usually is.”
Wise words from someone who learned the hard way.
Quick checklist for not getting done over
Before you even think about getting quotes, use that MCS website to see who’s actually certified in your area. Don’t waste time with anyone who’s not on the list.
When companies turn up to quote, first thing you ask is to see their MCS certificate. Proper one with current dates, not some photocopy they knocked up on their computer.
Ask for references from recent jobs. Good companies are happy to put you in touch with satisfied customers. Dodgy ones will make excuses about data protection or whatever.
And please, for the love of all that’s holy, don’t pay big chunks of money upfront. Deposit’s fair enough, but the bulk should be on completion.
Watch out for door-to-door salespeople offering “special deals if you sign today.” Legitimate companies don’t need to use high-pressure tactics.
If someone’s reluctant to give you their MCS number or gets defensive about checking credentials, that tells you everything you need to know.
Dave’s experience should be a warning to us all. Solar panels are brilliant when they’re done properly, but they can be an expensive nightmare when they’re not. Don’t be tempted to cut corners – the savings aren’t worth the risk.