Scammers. Warranty was not honored in my flat as boiler was installed by the builder. Cosmic callout charges £200 to Romford! Do not buy from them. 12KW boiler heating 4sqm fat costs £400!!!
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Payment system and costumer service deplorable. Opaque terms and conditions, paid for a service and needed a part fitted and had to pay for an extra call out charge despite the engineer and part al... See more
Company replied
Big shout out to Jaz , he’s been fantastic the entire process. Long story short , I had an issue with a boiler whilst being a tenant. Had no hot water and no heating and can not fault the effort t... See more
No one ever wants a boiler issue but these things happen… luckily Jaz was there to help, even out of hours! What an absolute life saver!!! Thankful that hard working and honest tradesmen like Jaz sti... See more
Company replied
Company details
Written by the company
Based in Windsor, Berkshire, Electric Combi Boilers Company supplies electric combi and electric system boilers across the UK. See live systems at our showroom & training centre, book installer sessions, or speak to our UK-based Technical & Service Team. Prefer to shop online? Order 24/7 with nationwide delivery or buy direct from our Head Office. Our ranges: ELEKTRA SMART and GUIVAL SMALL are European-built for British properties and supported with extended warranties (ELEKTRA up to 10 years, GUIVAL up to 5 years, subject to registration and biennial service by ECBC or an authorised engineer). We also provide configuration support by phone or video to help installers and end users get set up smoothly. See real customer stories, install photos and how-to content on Instagram, Facebook and LinkedIn. Many reviewers highlight clear advice, straightforward installs and responsive aftercare, exactly what you want from an electric boiler specialist. Call 0208 998 2024 for guidance, or drop into our Windsor showroom & training centre.
Contact info
Abcot Uk Ltd / Green Acres, SL4 4QF, Oakley Green Road, United Kingdom
- 02089982024
- contact@electriccombiboilers.uk
- www.electriccombiboilerscompany.com
4.5
Excellent
282 reviews
No recent history of asking for reviews
This company hasn't invited customers recently, so reviews may not be representative
Replied to 66% of negative reviews
Typically replies within 2 weeks
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Scammers
Scammers. Warranty was not honored in my flat as boiler was installed by the builder. Cosmic callout charges £200 to Romford! Do not buy from them. 12KW boiler heating 4sqm fat costs £400!!!
July 27, 2026
Unprompted review
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Very professional company nothing to…
Very professional company nothing to much trouble for them highly recommend
May 15, 2026
Unprompted review
Very friendly , professional and speedy service.
Big shout out to Jaz , he’s been fantastic the entire process.
Long story short , I had an issue with a boiler whilst being a tenant. Had no hot water and no heating and can not fault the effort these guys had put in.
Communication was really helpful and the feedback I got to pass onto my landlord really helped. Jaz has been a rockstar , he’s friendly , informative and helpful.
Thank you so much for your help :) would definitely recommend for any issues.
April 29, 2026
Unprompted review
When I need help with the boiler I…
When I need help with the boiler I bought over 5 years ago now, I get it quickly & without a bloody bot but from real people. They’re a really good company!
April 15, 2026
Unprompted review
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Really helpful and rapid response
Helpful and rapid response to a problem which I was unable to deal with locally. Costs and services were fully outlined.
On the day of the day of the repair the operative turned up on time, was courteous and helpful and did a good and tidy job.
March 11, 2026
Unprompted review
Reply from Electric Combi Boilers Company
Thank you for taking the time to share this review, it’s great to hear everything went smoothly from start to finish.
We’re glad the team was able to respond quickly, keep everything clear on costs, and get the issue sorted on the day. I’ll pass your comments on to the engineer as well, they’ll appreciate it.
If you ever need us again, we’re here.
Letizia
ECBC Team
Payment system and costumer service…
Payment system and costumer service deplorable. Opaque terms and conditions, paid for a service and needed a part fitted and had to pay for an extra call out charge despite the engineer and part already being on site.
Had to chase service report for over a month.
When tried to pay additional charges was sent twice payment link requesting £144 instead of £84. Took an extra 2 hours to sort out payment.
Will not use Euroboiler parts & Eletric combi boilers again.
February 24, 2026
Unprompted review
Reply from Electric Combi Boilers Company
Thank you for your feedback. We take all feedbacks seriously.
To clarify for readers, the original booking was for a scheduled Boiler Service. During the visit, a fault was identified and repaired. As outlined in our booking terms (send before the booking, after the booking confirmation and on the calendar event confirmation as well as on our website), repairs during a service visit carry a £50 + VAT repair add-on, plus the cost of any parts used. In this case:
• Repair add-on: £50 + VAT
• Automatic Air Vent: £20 + VAT
Total: £84 inc VAT
No additional callout was charged.
There was a temporary issue with the online payment link display which caused confusion, and this has since been reviewed.
Service reports are issued once engineer documentation has been processed and verified. All charges are detailed in the booking confirmation and published in our Terms & Conditions.
We wish you all the best.
ECBC Support Team (LF)
Great after sales customer service
Was cautious about having a full electric boiler , my house has now been gas free for about 5 years Superb sales and after sales customer services , online chat soon sorted out a small issue I had with the boiler, parts I ordered online came the following day . Superb team effort
January 29, 2026
Unprompted review
Reply from Electric Combi Boilers Company
Thank you for taking the time to share this.
Moving to a fully electric home is a big decision, so we’re pleased to hear your boiler has been performing well over the past five years. It’s also great to know our online support team could resolve your query quickly and that your parts arrived promptly.
We design, specify, install and support our electric boiler range in-house, so responsive after-sales service is something we take seriously.
We appreciate your trust in us.
Letizia
ECBC Team
DO NOT BUY THIS BOILER
DO NOT BUY THIS BOILER. My boiler has been faulty since it was installed a few years ago. We bought the largest boiler for a 2 bed 50m2 flat being advised that it could run two baths and kitchen simultaneously. It cannot fill a bath properly and my daughter barely gets enough hot water to wash her hair. We were advised to buy a second storage tank, spending a further £600, but are still having issues. We were then advised to buy several other parts during the regular site visits to get the boiler working properly. Parts we had installed on their advice were then removed without asking or advising us! The boiler keeps losing pressure every few days and we have done everything they ask on their visits. I have asked to speak to a manager but they do not have the courtesy to speak to me. I work in construction and can honestly say that this is the worst boiler I have ever seen. A big regret.
January 25, 2026
Unprompted review
Reply from Electric Combi Boilers Company
We’re sorry to read this and would like to clarify a few important points for accuracy.
Electric combi boilers do not operate in the same way as gas combi boilers. Hot water performance is dependent on stored hot water capacity and electrical supply limits, not just boiler size. A 50m² flat typically does not require the “largest” boiler for heating demand, but bath performance depends on cylinder volume and incoming water pressure/flow rate.
Running two baths and a kitchen simultaneously would require significant stored capacity and suitable electrical infrastructure. If additional storage was recommended, this would have been to increase available hot water volume, not to correct a fault.
Regarding pressure loss: system pressure dropping could be caused by issues in the boiler itself or by the wider heating system (e.g. radiators, pipework, expansion vessel, safety valve discharge, or hidden leaks). This requires system diagnosis rather than boiler replacement.
Parts are only removed where they are not required or where alternative configuration is implemented. No components are removed without technical reasoning.
We take escalation requests seriously. If you provide your job reference, we will have senior technical review the full installation specification, service history and hydraulic layout to determine whether this is a configuration issue, a system issue, or a usage expectation mismatch.
Electric systems must be correctly sized and configured based on electrical capacity, hot water demand and property layout. When designed appropriately, they operate reliably, and we are fully prepared to review this case properly and transparently.
Letizia
ECBC Team
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Amazing service
Amazing service, Jaz was so helpful, could not recommend more highly!
January 23, 2026
Unprompted review
Reply from Electric Combi Boilers Company
Thank you so much for your kind words.
We’re delighted to hear Jaz was able to help and that you had such a positive experience. He takes great pride in making sure every customer feels supported and confident in their system.
We truly appreciate the recommendation.
Letizia
ECBC Team
Jaz was excellent
Jaz was excellent, he also had two trainees with him, he asked whether it was alright for them to attend and was very good with them, explaining how things are done and asking them questions, nothing was too much trouble for him.
January 22, 2026
Unprompted review
Reply from Electric Combi Boilers Company
Thank you for taking the time to share this.
We’re really pleased to hear Jaz provided such a thorough service and that he checked you were comfortable with the trainees attending. Supporting the next generation of engineers is important to us, and it’s great to know he represented the company so well while doing so.
We’ll make sure your feedback is passed on to him and the team.
Letizia
ECBC Team
Answer the phone on the first call..
Answer the phone on the first call..
Great product knowledge
Sent me a link that was so easy to order… I reckon these people deserve supplier of the year
January 19, 2026
Unprompted review
Reply from Electric Combi Boilers Company
What a review — thank you!
We’re so glad you had a great experience with our team. Fast answers, product know-how, and a smooth order process is exactly what we aim for. 😊
Reply from Electric Combi Boilers Company
Thank you for tyour kind words, Domenico!
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I spoke with Tech department and was…
I spoke with Tech department and was given very clear instructions how to fault find. Happy with service and professionalism.
December 9, 2025
Unprompted review
Reply from Electric Combi Boilers Company
Thank you for the feedback, Deividas, glad to hear our technical team was able to provide clear guidance and that you were happy with the service and professionalism. We appreciate you taking the time to share your experience.
Letizia
ECBC Team
Jaz was so helpful and efficient.He…
Jaz was so helpful and efficient.He listened to our issues,quickly resolved and explained how to use on different situations.I am so happy with his service! Would definitely recommend the company and the service they provided!
November 27, 2025
Unprompted review
Reply from Electric Combi Boilers Company
Thank you, Raya, for taking the time to share this. We’re pleased to hear Jaz was helpful, efficient, and took the time to explain how to use the system in different situations. We appreciate the recommendation and your kind words about the service.
Letizia
ECBC Team
Reply from Electric Combi Boilers Company
Thanks, Kevin!
First class phone support both in parts…
First class phone support both in parts purchase and then installation support.
October 24, 2025
Unprompted review
Reply from Electric Combi Boilers Company
Thank you for your kind words, Peter!
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He came so many miles to fix my boiler…
He came so many miles to fix my boiler for a 20 minute job then going back 3 hours away is mad but helpful as im pregnant and we needed hot water and heating! Would recommend.
November 6, 2025
Unprompted review
Reply from Electric Combi Boilers Company
Thank you for your kind words, Charlotte! Best wishes for the baby to come!
Boiler repairs done quickly
I have had a boiler for a number of years. Earlier this year it needed a repair and could not anyone who was able to do this satisfactorily so I contacted the company direct and they came out immediately and got the boiler working again. That was a great service.
November 2, 2025
Unprompted review
Reply from Electric Combi Boilers Company
Dear Tim,
Thank you for taking the time to share your review. I’m sorry to hear you’ve had a frustrating experience, and I’d like to clarify a couple of points for accuracy.
Electric showers and electric boilers work in completely different ways. Electric showers heat a small amount of water at the point of exit with a very low flow rate, which keeps running costs low. An electric boiler heats water for the whole home and naturally uses more kW when there is full demand, as it heats the water travelling through the pipework. Comparing the two won't give a fair picture of how the boiler is designed to perform.
You booked a callout shortly after leaving this review, and our engineer attended. The boiler faults found were not due to a manufacturing issue or “not being used,” but to installation and maintenance conditions: incorrect MCB, no CH filter, and an over-pressurised boiler. These are all factors that will affect any boiler, electric or gas, over time.
All necessary parts were replaced during the visit, settings were corrected, and the boiler was restored to normal working order.
If you’d like support with the recommended system protections so the boiler can continue running reliably, our team is here to help. You can reach us on 02089 982 024 or WhatsApp +447888677250.
Best regards,
Letizia
ECBC Team
Would highly recommend Jaz
Jaz was friendly and professional! My boiler had a leak as it was several years old. Within 10 minutes, Jaz identified and was replacing the part. He also fixed the water pressure and taught me how to use all the boiler settings. He checked the overall quality of the boiler and gave it a general service. Great person to have on the team :)
October 20, 2025
Unprompted review
Reply from Electric Combi Boilers Company
Thank you so much for your kind words! We’re delighted to hear that Jaz provided such efficient and professional service, he takes real pride in helping customers get their boilers back in perfect working order. It’s great to know he not only fixed the leak but also took the time to walk you through the controls and give the system a full check. We’ll be sure to share your feedback with him.
Letizia
ECBC Team
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