Eco4 energy saving Reviews 

115
•
TrustScore 4.5 out of 5

4.7

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Review summary

Created with AI, based on recent reviews

Looking at 42 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently appreciate the highly efficient service and dedicated professional staff who handle home installations quickly, cleanly, and smoothly from the initial application to final completion. People frequently mention how supportive, polite, and knowledgeable the team is throughout the entire grant application process and subsequent property setup. Though some customers noted issues with installation quality, including messy work areas, debris left behind, or unexpected service delays. A few reviewers also experienced communication gaps regarding follow-up queries, unresolved problems, or temporary disruptions to essential household supplies.

What people talk about most

Service

Reviewers highlight positive aspects of service, frequently praising the fast and efficient installation of... See more

Staff

Clients share satisfaction on staff, praising the team for being very nice and helpful throughout the... See more

Customer service

Customers had positive experiences with customer service, frequently praising certain staff members for being... See more

User experience

Consumers find user experience to be a fantastic experience from start to finish. Reviewers highlighted that... See more

Reviews shaping this summary

Rated 5 out of 5 stars

Amazing and helpful company. The application process was easy and fast. Great communication and quick responses to all my enquiries. My little one and I used to live in a freezing cold flat with... See more

Company replied

Rated 5 out of 5 stars

I experienced excellant service, the boiler, radiators valves and electronic thermostat was fitted along with roof insulation, trickle vents and 2 extracter fans with a couple of weeks of apply for th... See more

Rated 5 out of 5 stars

From start to finish we had excellent service, very little mess considering the work we had done. Connor was our go to guy when we had any questions and he helped us through the whole process.

Rated 5 out of 5 stars

This post is in relation to a grant allowing free energy saving improvements to a rented property. I dealt with Slater at the company who was outstanding. I was contacted for all the evidential paperw... See more


Company details

  1. Solar Energy Company

Written by the company

Apply today to have your old & inefficient boiler replaced for FREE. Many people now qualify for free Boiler Grants under the 2023 Government’s ECO scheme.


Contact info

4.7

Excellent

TrustScore 4.5 out of 5

115 reviews

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No recent history of asking for reviews

This company hasn't invited customers recently, so reviews may not be representative

Replied to 50% of negative reviews

Typically replies within 24 hours

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4.7

All reviews

(115)

42 reviews in the last 12 months

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Rated 5 out of 5 stars

A Big Thank you to Slater who helped me…

A Big Thank you to Slater who helped me with my enquiry, which led me to getting new radiators loft insulation trickle vent and fans.
I’m so happy with the work that was carried out by Bobby and his colleagues.
My home is going to be so cosy this winter.
Highly recommend Eco4 energy
⭐️⭐️⭐️⭐️⭐️

28 September 2026
Unprompted review
Rated 5 out of 5 stars

I experienced excellant service

I experienced excellant service, the boiler, radiators valves and electronic thermostat was fitted along with roof insulation, trickle vents and 2 extracter fans with a couple of weeks of apply for the grant. The application process was quick, easy and Harris was very good, polite, very supportive. I am happy with the excellant service provided. The team who were also very nice. I would highly recommend this company to anyone thinking about using this service. Thank you very much. Harris went above and beyound. THANK YOU.

27 September 2026
Unprompted review
Rated 5 out of 5 stars

The process was easy and slater the…

The process was easy and slater the person who talked me through the process was great and was all done with in the week and although i was sceptical at first it all went very smooth and the workman were great all done in one day as well as loft insulation as well as boiler , great service

22 September 2026
Unprompted review
Rated 5 out of 5 stars

Replaced my 50yr system boiler with a…

Replaced my 50yr system boiler with a spiffing new fangled combi boiler.
Connor, in the office, handled the bureaucracy and logistics admirably, Habib the plumber, very adept and professional.
All in all, a job well done.
My compliments to all involved.

3 September 2026
Unprompted review
Rated 1 out of 5 stars

Excellent communication until you have…

Excellent communication until you have queries and then radio silence, the installers what can I say months later and still putting things right, if I had known what the cowboy installation was like would never have gone ahead. Please please save yourself stress, hassle and work and research other company’s very carefully

1 July 2026
Unprompted review
Eco4 energy saving logo

Reply from Eco4 energy saving

Hi, We have no record of your details. it seems you have wrote the review for the incorrect company can you please remove this. Many Thanks,

Rated 5 out of 5 stars

Marian Patru

Thank you Connor for everything you have done for me eco4 grant it is wonderful that now I have a new boiler and radiators with the whole copper pipe system I am very happy thank you very much.

17 August 2026
Unprompted review
Rated 5 out of 5 stars

Boiler installation

Dealt with Connor in the office who was very friendly, helpful and accommodating. Excellent customer service, hence the ⭐⭐⭐⭐⭐. Once all the checks were done the process was very quick with my new boiler being installed within 10 days. My new boiler with all the extras is superb. Thanks to all the team involved.

6 August 2026
Unprompted review
Rated 5 out of 5 stars

Somebody from the company always picked…

Somebody from the company always picked up the phone and had knowledge of my property. I had a new boiler, new radiator valves fitted to every radiator and the loft fully insulated, abd all covered by grants. Slater was my main contact at the company and was always helpful and courteous.

1 August 2026
Unprompted review
Rated 5 out of 5 stars

Great customer service

Great customer service from Slater and others at EC04. Kept up fully informed on progress and arranging surveys etc. The installers from Wintak worked hard and tidied up after themselves leaving everything spotless removing all of the rubbish.

24 July 2026
Unprompted review
Rated 5 out of 5 stars

We thought this was all too good to be…

We thought this was all too good to be true, but Connor was so helpful, polite and supported us all the way through. Boiler and insulation done in 1 day. The guys were excellent and everything works a dream! They even did it all on one of the hottest days of the year!
Would highly recommend.

10 July 2026
Unprompted review
Rated 5 out of 5 stars

A friendly, knowledgeable company who were great from start to finish.

My advisor was a lovely guy called Slater, and once I'd submitted any relevant paperwork, info, etc, the initial survey was done, and within the same week, I had a bright and shiny new boiler installed. They even topped up my loft insulation, even tho it was above recommended thickness so not required.
All the people I dealt with, either on the phone or in person were friendly and helpful, and the whole experience was extremely positive from start to finish. If I had to give any criticism, it would be that the guys who installed the boiler left a bit of mess (brick dust and debris) and didn't take their rubbish with them so I've got to dispose of it, but this is a very small negative on what was a fantastic experience.
All in all, I highly recommend Eco4 Energy and thank them for the amazing job they did for me.

11 July 2026
Unprompted review
Rated 5 out of 5 stars

Outstanding Administration and insulation

This post is in relation to a grant allowing free energy saving improvements to a rented property. I dealt with Slater at the company who was outstanding. I was contacted for all the evidential paperwork. This was dealt with quickly and from the time it was approved to instulation was a out 6 days. New Baxi boiler with 5yr guarantee. New valves on radiators, fans in the kitchen and bathroom., window vents and loft insulation.

5 July 2026
Unprompted review
Rated 5 out of 5 stars

The two employees came in first thing…

The two employees came in first thing in the morning and got Straight to work. They done a fantastic job. They where putting in a full central heating system. After they took away all the mess and tidied up. I can't fault them and would definitely use them again.

29 June 2026
Unprompted review
Rated 5 out of 5 stars

Highly recommended!!!

Absolutely fantastic company! From the start Slater was brilliant, very professional and made all process very smooth. How fast all was arranged-absolutley amazing! Also boiler tram was fantastic! Highly recommended! Thank you all!

19 June 2026
Unprompted review
Rated 5 out of 5 stars

Thank you ever so much!

I honestly can't thank this company and the extremely helpful Connor enough. He put us in touch with an installer through the ECO4 government scheme, and thanks to them we've had our condemned back boiler replaced with a brand new heating system completely free of charge.

The whole process did take around 8 months from start to finish, mainly because of issues proving my ownership and eligibility, along with delays due to changes within the government scheme for good measure. While it was a long wait, none of that was the anyone's fault. Connor kept us updated throughout, and as soon as everything was approved, the installers called us and had a team out the very next day.

The installation team were fantastic. They were here for four days in total and did far more work than we ever expected. Along with the new heating system, they installed new radiators, loft insulation, extractor fans, trickle vents, carried out roof repairs, and completed several other energy efficiency improvements to our home. The standard of workmanship was excellent, and everyone was friendly, hardworking and respectful.

We are so grateful for everything that's been done. After living with a condemned back boiler, it's an incredible feeling knowing our home will finally be warm, safe and much more energy efficient this winter.

If you're eligible for the ECO4 scheme, I'd highly recommend this company. The process can take time, but it's absolutely worth it in the end. Thank you so much!

25 June 2026
Unprompted review

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