Calisen Reviews 936

TrustScore 2.5 out of 5

2.3

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Looking at 93 reviews, most reviewers were unhappy with their experience overall. Many customers expressed significant dissatisfaction with the service, particularly regarding frequent cancellations of appointments, often at the last minute, and the difficulty in contacting the company. People also reported issues with the booking process, citing repeated no-shows from engineers and long waiting times for rescheduled appointments. Conversely, a small portion of people were satisfied with the staff, highlighting positive interactions with engineers who were described as professional, polite, and efficient in their work. These customers praised specific individuals for going above and beyond to resolve issues and provide excellent service.

What people talk about most

Service

Customers had negative experiences with service. Many reviewers report frequent cancellations and no-shows... See more

Staff

Clients share ambiguous opinions on staff. Many reviewers praise staff members for being polite, efficient,... See more

Customer communications

Reviewers highlight negative aspects of contact. Customers consistently report extreme difficulty reaching... See more

Cancellation

Users describe negative interactions with cancellation. Many reviewers report frequent last-minute... See more

Booking process

Reviewers express widespread dissatisfaction with the booking process. Many customers report issues with... See more

Reviews shaping this summary

Rated 2 out of 5 stars

Had smart meter installed all seemed well, however it turns out no readings being sent to my electricity provider and I cannot read the meter the low cost night rate has disappeared. My electric co... See more

Rated 1 out of 5 stars

Terrible company. Trying to get my faulty electric meter fixed, I'm stuck paying whatever it last read before it broke. Initial wait of a couple months for engineer to visit start of September, they c... See more

Rated 1 out of 5 stars

Called yet again. After multiple tries finally got through. Yet again like last time some bloke answers the phone "Hello", so you dont even know if you have the right number. So unprofessional, never... See more

Rated 1 out of 5 stars

Scottish power are not serious about getting their customers on a Smart meter.Appointment booked for between 12pm and 4pm on 31-10-2025. SMS at 2:30pm to say not "Unfortunately- Blah Blah" , no appogy... See more


2.3

Poor

TrustScore 2.5 out of 5

936 reviews

5-star
4-star
3-star
2-star
1-star

Hasn’t replied to negative reviews

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Li was very efficient and respectful

Li was very efficient and respectful. He attended promptly and clearly explained to me what he was going to do. When he was done he ensured that he explained what he had done and provided a booklet with more information. I enjoyed his services ice.

24 July 2024
Unprompted review
Rated 1 out of 5 stars

Three phase engineer didn’t turn up!

Three phase engineer couldn’t be bothered to turn up.sent one phase yet again..been waiting since October..failed two appointments. This company needs to get its act together ..serious problems and attitude…no customer service ..wasted so much time. Best to avoid. Unfortunately they think as a subcontractor they are safe. Seriously letting the side down.

19 July 2024
Unprompted review
Rated 5 out of 5 stars

Thank you!

So relieved that after 2 yrs of abortive attempts to try to sort out our smart meters (mainly due to Utility Warehouse incompetence) Oliver Baker finally sorted the problem - what a relief!

8 July 2024
Unprompted review
Rated 5 out of 5 stars

Efficient

Very efficient, helpful and friendly engineer came and fitted smart meter. Spoke through every step and showed me how to use the meter itself. Wish I'd taken his name so he could get recognition from the company.

9 July 2024
Unprompted review
Rated 1 out of 5 stars

Worst Company i have ever met

Worst Company i have ever met, had an appointment 2 weeks ago with a 4 Hours slot, i had to give up work they contacted me after the 4 hours slot saying the Egineer will not arrive, they rebooked for 2 weeks later when the engineer arrived he said he cant find parking in front of house so he just left us and went off.

5 July 2024
Unprompted review
Rated 2 out of 5 stars

EV Charger Survey

Calisen did a survey for our EV charger install. The guy doing it logged some vital information incorrectly (said things weren't bonded when they were) and also told me incorrect information regarding the charger install regarding how long the cable could go from the fuse box to the charger. All this ended up doing was causing issues for charger install company as incorrect or not enough information was logged when the survey was done

14 May 2024
Unprompted review
Rated 1 out of 5 stars

Appalling service

I understand this company provides services on behalf of Scottish Power (who supply my gas).
I had an appointment to install a smart meter last month which the Calisen engineer did not attend and did not deem it necessary to let me know.
This appointment was rebooked almost immediately (one month ago) and today, two days before the scheduled time a representative from Calisen calls to say they cannot attend at the scheduled time but will have to come later instead.
Quite how this company believes they can waste people’s time like this is beyond me.

5 June 2024
Unprompted review
Rated 5 out of 5 stars

Going the extra mile

Wanted to give my engineer, Imran, huge thanks for helping fit a smart meter in a problematic apartment building. Patiently negotiated with building management team to get access and get the job done. Saved me stressing out. Appreciate all the help!

24 May 2024
Unprompted review
Rated 5 out of 5 stars

New electric meter fitting

Jeff, from arrival to finish, was polite and courteous. Kept me informed of what he was doing through out the job.
Worked tidily and efficiently.

24 May 2024
Unprompted review
Rated 5 out of 5 stars

Scheduled appointment review

Booking slot between 8am-12pm. Pam turned up at 9am. Explained what she needs to do. Once completed gave an explanation again of what work was carried out and next steps for me. Well informed, good service

22 May 2024
Unprompted review
Rated 1 out of 5 stars

Dreadful customer service.

Failed to turn up to read/inspect my FIT meter during an arranged 8-12 slot. When i contacted them at 12.30 they agent said that the meter reader had turned up and nobody had answered. This is simply untrue as I was never more than a few feet from my front door. Anyway if that was the case surely a "we tried to....." card would have been put through the letterbox. Anyway the lady on the phone said that the reader would call again between 2 and 4. This also didnt happen - I was in the front garden the whole time and my wife was sat in the lounge the whole time.
So this morning I phoned again. The rather abrupt member of staff informed me that as I had missed the appointment the case was now closed and that I would have to refer it back to UW to open the case again. No apology at all - and why should I have to put myself out to correct THEIR mistake.
Not only did they not turn up, they then lied about it, failed to apologise and expect ME to put it right.
Luckily the lady at UW had much better customer service skills and I will try again to book this meter check.

15 May 2024
Unprompted review
Rated 5 out of 5 stars

The engineer sent me a message saying…

The engineer sent me a message saying that he would be with me on Tuesday 7th. He arrived on time and was extremely helpful and sorted the problem.I told him that I had been trying since January to get an engineer to fix the gas meter readout. All fixed now thank you.

7 May 2024
Unprompted review
Rated 5 out of 5 stars

Jeff was great

Jeff was great at communicating a more specific arrival time due to me having school runs to do. Very efficient on the day, estimated an hour work and was finished in 40 minutes. No disruption to my daily routine. Very happy

7 May 2024
Unprompted review

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look