Used to be ok, but now I would not recommend them to my enemy, service has degrated to being unusable, customer services dont want to know, and technical services are just useless - for example every time you ring they demand you go through the same basic checks - even as I was doing to 3 days ago and nothings changed - at least read the notes of the previous agent (assuming they left any) - since vodafone took over have just become rubbish...

After many years of using "Demon" for our business internet with free ISP addresses they have given us 30 days notice that this service is now coming to an end. If we wish to retain our email addresses, we have been instructed to renew with another company called "names.co" where we have been invited to pay for the privilege of what was previously a free service. We have found a more competitive broadband provider who will give us the 3 free ISP addresses that we need so we will be serving our 30 days notice on Vodafone to stick their broadband service where the sun don't shine.

I have been a customer of Demon for years. Since December 2012, my broadband speed has dropped to less than 1.0Mb. YES, less than 1.0Mb. Not my installation at fault and not my computers. Demon No help. Get no reply to emails. Tried to phone to no avail.This is what happens when Vodafone take over a company. My advice do not go near Demon. I am so angry that they can be so indifferent to a longstanding customer.

I was a Demon customer for several years using Business Broadband but when I moved house they told me they couldn't support the package I'd been using so I asked them to release my domain name to me so I could move to a new Internet Service Provider. That was three months ago, nothing has happened, my website is down and despite pretty well daily calls, emails and weekly letters, Demon seem incapable of doing what any ISP is supposed to do, by law, when they cease providing internet service. So far I've spent more time trying to solve this problem than doing anything else since I moved home. Demon are just terrible - I can't run my business without a website and they can't seem to understand even the simplest of processes. Stay away from them at all costs if you're a business broadband user!

Having been a loyal Demon ADSL customer for more years than I care to remember, I'm looking for another ISP. I get the super speed most of the day - except after 5:00pm and especially between 6:00pm and 8:00pm when their service just dies most days. After countless calls to their "Technical Support" (who seem to have less idea than me - which isn't saying much) they refuse to log a fault. Countless times I've been advised to reboot router, reboot PC, disconnect all other devices, change filters, upgrade router software, change router - all of which I've done - but they still deny the problem is with them or the line (BT). If the fault is with me then how comes it only happens at certain times? The bottom line is that they cannot cope with peak demand and will not admit it. My advice - steer clear of Demon.

account closed 5months they carried on taking payments until direct debit was canceled then asked why payments was stopped promtly told them they owed me money by phone was supposed to be being sorted then they sent invioce for further payment month later rang them about it they supossed to ring back never happened rang again suposed to ring back again so told them if not i get in touch with the ombudsman still no call back ....to be continued

I was a happy customer for over 10 years, then recently the speed dropped from 6mbps to less than 0.5kbps. The customer services system has gone to a stereo-typical foreign helpdesk outfit which has no technical skill and is not empowered to help in any way. After a week of trying to convince the operators that there is a real fault that won't clear by rebooting my PC or my router -- and also won't clear after waiting 72 hours -- I decided to leave. I followed their instruction (again via useless helpdesk), and I am still receiving invoices two months later. All communication channels are funneled through their website, and all calls go to the useless customer services department (note: the individuals are polite, but they are not empowered to help).

Loyal customer of Demon for years and contacted them about unlimited broadband. Stuck with historical FUP agreement for Home 8000 Broadband. They offer business broadband only (but anyone can have it - you don't have to be a business) and they want more money, with no promise of faster speeds and to sign up to another 24 month contract when on a one month rolling contract to start with. Nothing is in the customers favour. Their Customer Loyalty Teams speak over your telephone conversations and offer you nothing above what you get if you subscribe as a new customer. They waive the connection fee only. Big saving then? I will mourn the loss of my email address but nothing else. They had fantastic customer services in 2007 but everything down hill from there I'm afraid. The Loyalty Team told me that broadband speeds of home 8000 users are throttled to death at the expense of business customers who get all the priority traffic. I wouldn't touch these with a bargepole now. You have been warned and its a shame a once great company has nothing to offer its home broadband customers. They removed my posts from their forum - that's how much they don't want you to know about what they are really like and what happens on Customer Loyalty Team conversations.

We'd been with Demon 16 years, with a lot of problems, but we didn't change as we didn't think we would get better service with others and we wanted to keep our email address. But recently a new company laid new cables that improve our download speed from 0.78mbs to 10mbs (we live in a rural area)and the deal is using them as our ISP. So we had to break from Demon as ISP. But I enquired about keeping the email address. Them: Yes, no problem, for a small charge but we won't tell you what it is till you request the Mac code. Me: So we'll be able to continue getting our mail using the demon address? Them: yes, no break in service, or if there is, only very short. So we decide to go with that. Upshot: It's called 'dialup loyalty'. They charge five pounds ten pence per month. Steep when so many email accounts are free or less than a fiver a year, but I requested the change. They then said: 48 hours of down time on the account, when mails will be bounced back to sender and lost. Okay, I say wearily, just do it. ONE WEEK LATER and several phone calls, we still don't have email coming through. Each time I talk to someone it's the same: "oh, it'll take 48 hours to reset the account for the new arrangement..." (48 hours??? how hard can it be?) "...but I'll escalate the request to urgent". That is, 48 hours from when I speak to them. Every time. So nothing is happening. This really is the cherry on the icing on the cake. Demon has been nothing but trouble for the last 10 years (Demon used to be very good) and I really would not recommend you use them, or make this transfer to dialup loyalty, because the operators you talk to are underinformed, totally scripted and unable to do anything to help, and the company is not geared up to actually helping customers. Is it just because we are leaving them and they don't care? Well that can't help of course, but we have had this kind of problem many times. Always sounding helpful and punting the problem away to someone else. We were once in a loop for ten weeks with no phone or internet because they kept punting the problem away when it was theirs to solve. My advice? Ask your friends till you find an ISP or email provider that they recommend. Demon, I think, is not likely to feature. (And if you live in rural Wales and get less than 2mbs download speed, check out the opportunities for getting new cables laid using the Welsh Government schemes).

Couldnt disagree with the last reviewer more. I have also been with Demon for years. Their service and support system have always been poor. Recently, I decided I have had enough and started trying to transfer the few remaining services we have with them away. The process has been a nightmare - jumping though the many hoops they have set up before anything can be done, repeatedly waiting for 48 hour callbacks that don't come, having to call them back endlessly which means navigating their unnecessarily complicated phone answering system time after time... It has taken 25 days for Demon to actually achieve this simple task! Their customer service team - in India - were actually great. Helpful, polite, intelligent. It's just that they can't do much. Only forward things to the people in the UK - and they are hopeless. Also rude. I had the misfortune to speak to one woman in the UK (because somebody from Demon left a message asking me to call back with - no surpirse - the wrong series of extensions for me to follow). This woman just interrupted everything I said, didnt listen and transferred me back to India. If anybody asked me, I would advise not to touch them with a barge pole or anything else.

Been a customer for many years. Recently discoved they had moved me to a "limited" service (60gb per month), yet they have failed to make this clear to me and continued to charge me what they advertise for an unlimited service. I am currently unclear as to long long this company happily ripped me off, but the attitute of their "customer Service" when cahllenged was a disgrace. I has since switched to another company, it costs a lot less and it actually a faster, more stable connection! Do not use this company, you have been warned.

Not sure what is happening at Demon, its been a great service for years but all appears to be downhill. Like the last review, spam, spam, spam - and some I'm concerned about. My PC has more protection than NATO. They really need a re-think around customers, I may regret moving - but its possibly time to move on. Sad, they were once the best ISP and I hope they can sort things out.

I have been with Demon since 1997. In my area Plusnet offer 40 Mb for £16.49 pm and 80 Mb for £19.99 pm. Demon don't have LLU for this area and because of my distance from the exchange, with Demon I am limited to 4.5 Mb for my £18.60 pm. So it would have been a no brainer to switch anyway. But over the last few months I have been getting ever more spam, from Canadian pharmacies, gambling sites, Nigerian 'bankers' etc. In the last few weeks it has spun out of control with 20 such messages every day. I have reported it and they claim there is nothing they can do. I have been parallel running with Plusnet for the last nine months and so far have had no spam on their service. The reason I have been parallel running is that Demon insisted on 2 year notice to quit despite my being one of their longest suffering customers. Three more weeks and I am out at last!

I have been a demon customer since the early 90's. In the early days I was very happy with their service, but over the last few years the service has nosedived. It used to be possible to talk to knowledgeable technical support people at any time, day or night. Now, the support hours are severely curtailed and when you eventually get to speak to a real person, they try to fob you off with simple/obvious 'cures' which seldom work. I left Demon 6 months ago as they were unable to improve my braodaband speed from 500k depite the fact that I live within 0.5mile of the exchange. Unfortunately my parents are still lumbered with them and Demon accidentaly disconnected their connection without warning about 1 month ago. I have been trying to get the service re-instated with the original email ever since. Despite promises that it will be fixed within various times ranging from 2 hours to 2 days it is still not working. I have wasted hours listening to 'musak' whilst working up the support queue, only to find that they have no record of notes from previous calls. There appears to be no system for technical support and customer services to share information and information given by different technical support advisers is frequently contradictory. Demon is now in a complete mess - a real shame....

From a good ISP to my last communication from Tech service " Thank you for your email concerning issues with your broadband speed. We sincerely emapthise with your slow speed connections. We are working on this issue. We will get back to you once we have an update on this issue" The guy is very polite but a concern to fix the problem would have been more helpful.