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Review summary

Based on reviews, created with AI

Reviewers overwhelmingly had a great experience with this company. Customers consistently praise the staff for their exceptional service, highlighting their punctuality, professionalism, and friendly demeanor. Many people appreciate the clear explanations provided by the knowledgeable technicians, who often go the extra mile. The pricing is frequently mentioned as very reasonable, offering good value for the quality of work performed. Consumers also commend the efficiency and organization of the entire team, from initial contact to job completion. The service is often described as reliable and thorough, with many reviewers expressing their intention to use the company again for future needs.

What people talk about most

Service

Reviewers highlight positive aspects of service, consistently praising the professionalism and efficiency of... See more

Staff

Reviewers consistently mention positive feedback about staff. Customers frequently praise the... See more

Price

Consumers find the pricing to be very reasonable and fair. Many reviewers highlight that the service provided... See more

Based on these reviews

Rated 5 out of 5 stars

Company responded quickly to our request for quote. Person who came was knowledgeable and explained exactly what they would do. A suitable time was arranged and on day 2 guys arrived on time and q... See more

Rated 5 out of 5 stars

Connor has been servicing our boiler for 4 years now and gets in touch to remind us of dates etc so we have less to worry about. He is knowledgeable, friendly, tidies up after him and goes the extra m... See more

Rated 5 out of 5 stars

The entire team were friendly and approachable from the initial telephone call to job completion. The fitters were respectful of me and my home (didn’t hear any raised voices, loud music or bad lang... See more

Rated 5 out of 5 stars

C1 Boilers is my go-to destination whenever I need help. Conor is extremely knowledgeable and explains everything very clearly and helpfully. Always polite and on time. Teresa is really great at... See more

Rated 5 out of 5 stars

Connor and his colleagues were prompt, polite, friendly, efficient, patient, clearly knew what they were doing and did it well. They were good at listening and explaining. They kept to time, indeed s... See more

Rated 5 out of 5 stars

Their office manager Theresa is very helpful and efficient. Everything was simple and arranged quickly. The fitter was very polite and knowledgeable. The only downside would be that if you're usin... See more

Rated 5 out of 5 stars

First class boiler service from Conner(and apprentice)once again.GIven afternoon time and received text with arrival time on the day. Answered a couple of questions in a clear and friendly manner.... See more

Rated 5 out of 5 stars

C1 Boilers serviced my boiler and hot water tank. The engineer arrived on time, explained what was being done, and everything was completed without any issues. This is the second time I’ve used them a... See more

Rated 5 out of 5 stars

Great company. Prompt reply to my enquiry and arranged boiler service very quickly. I had a few questions regarding my gas radiators and gas fire in my house which Connor was able to advise me about.... See more

Rated 5 out of 5 stars

I trusted the staff. The whole process was reassuring and I feel like I made a good decision. It was helpful that I don't have to pay outright and that finance was easy to arrange. No mess, no inconve... See more

Rated 5 out of 5 stars

We booked C1 Boilers to come out and service the boiler in my late father's house before the sale went through. They were very efficient and kept us informed throughout. The guy that did the servic... See more

Rated 5 out of 5 stars

Each time we have had our boiler serviced we have been given avcurate advance warning of our appointments and job has been quietly and efficiently carried out. Any issues are explained and advice give... See more

Rated 5 out of 5 stars

C1 Boilers provided an outstanding service from start to finish. Connor and his team performed an excellent job on the installation itself. I received a great quote, and the entire planning process wa... See more

Rated 5 out of 5 stars

From the initial contact with Teresa to the boiler being serviced by Connor, everything was very professional. Connor arrived on time, took time to ask how the boiler had been etc and carried out the... See more

Rated 5 out of 5 stars

Very professional and well organised. I’ve used C1 previously for annual servicing and was equally impressed this time. Turned up on time, communicated clearly, kept the house clean and tidy, and did... See more

Rated 5 out of 5 stars

Another 1st rate job from C1 Boliers. Connor fitted a programmable room thermostat will little fuss or mess. Can't commend highly enough and would have no hesitation to use again and recommend.

Rated 5 out of 5 stars

Great service from C1, they gave me three quotes to choose from for my replacement boiler, I chose the top quote and I'm completely happy with my choice, Ideal ultra 32kw. The C1 team offer great pers... See more

Rated 5 out of 5 stars

The company arranged a date that was suitable for me, they arrived on time and done a fantastic job. No mess was left when the job of replacing all the radiator valves and fitting an extra radiator. C... See more

Rated 5 out of 5 stars

Had the boiler serviced. Engineer arrived as arranged. Carried out the work in a very professional manner keeping me fully updated on the work carried out. Very friendly and helpful staff.

Rated 5 out of 5 stars

The company alerted me that the annual servicing of my boiler was due. I phoned to arrange a suitable time. I was informed of the time and informed when they would arrive. The heating engineer togethe... See more

Rated 5 out of 5 stars

After our recent boiler service I requested an additional radiator to be retro fitted into our home. I recieved a quotation and booking the job was so easy with flexibilty on dates to suit mysel... See more

Rated 5 out of 5 stars

Teresa and Connor could not have been anymore helpful, I was lucky there was a slot available to have my new boiler fitted yesterday after 2 weeks of no heat or hot water.

Rated 5 out of 5 stars

ON time courteous no mess clean job explained in detail will recommend to anyone I have used them before as well they did a good job

Rated 5 out of 5 stars

Connor was friendly and efficient when servicing our boiler. He saw a small problem which he fixed. I would recommend his company.

Company replied

Rated 5 out of 5 stars

Quick turn around from first call to report a fault and coming back to fit new parts and do a service on the boiler. Attend when they said they would. Will continue to use for all our business.

Company replied

Rated 5 out of 5 stars

Very happy with C1 boiler service.The team was easy to communicate with, the service was done promptly as scheduled, and there were no issues

Rated 5 out of 5 stars

Great service from C1 Boilers on a short notice. Connor and the team have replaced our old boiler quickly and professionally with minimal disruption.

Rated 5 out of 5 stars

Extremely organized and highly professional. I've relied on C1 for yearly maintenance before, and once again, they impressed me. They arrived promptly, communicated effectively, maintained cleanliness... See more

Rated 5 out of 5 stars

My husband was here when the very nice man came to service the boiler he adjusted the settings for us which made everything a lot easier for us will definitely be using the company again very trustwor... See more

Rated 5 out of 5 stars

Engineer did good job servicing boiler, also advised on needed parts and smoke alarm

Rated 5 out of 5 stars

Communication to setup appointment was easy, turned up as agreed, email notification to advise of arrival time was excellent. Work was carried out quickly and efficiently, while explaining process et... See more

Rated 5 out of 5 stars

Connor always comes on time, does a great job! This time was a boiler service and it was quick and efficient!

Rated 5 out of 5 stars

C1 fitted my new boiler two years ago. Connor is excellent and delightful too. I have no hesitation in recommending the company.

Rated 5 out of 5 stars

The engineer was patient, efficient, and approached the task with care and attention to detail. He gave completely satisfactory service and ensure that I will always recommend your company.

Rated 5 out of 5 stars

This company delivers excellent boiler servicing -reliable, punctual, and well-priced. Communication is smooth. Teresa in the office handles the administration part brilliantly, and the service techni... See more

Rated 5 out of 5 stars

Annual service highlighted a faulty seal. Seal was replaced and service was completed in super fast time. Amazing and speedy service from Connor & his team. Would highly recommend.


Company details

  1. Boiler and Heating Service
  2. Boiler Supplier
  3. Gas Company
  4. Gas Engineer
  5. Gas Installation Service
  6. Heating Contractor

Written by the company

C1 Boilers is a local, family run heating company known for exceptional customer care and high quality workmanship. We install, service, and repair boilers across Edinburgh and the Lothians, combining expert engineering with the kind of personal service you just don’t get from bigger companies. Our customers love that we’re always on time, always respectful of their home, and never pushy. With over 300 legitimate 5-star reviews, we’ve earned a reputation for being reliable, honest, and genuinely helpful. We offer clear pricing, flexible finance, and full aftercare so you’re supported before, during, and long after your install. Choose C1 Boilers for service that actually feels personal.


Contact info

4.9

Excellent

TrustScore 5 out of 5

152 reviews

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Rated 5 out of 5 stars

Highly recommend - boiler service

From the initial contact with Teresa to the boiler being serviced by Connor, everything was very professional. Connor arrived on time, took time to ask how the boiler had been etc and carried out the job to a very high standard. We were really impressed with the service we received and would highly recommend this company.

March 16, 2026
Rated 5 out of 5 stars

Great people and excellent service!

The entire team were friendly and approachable from the initial telephone call to job completion. The fitters were respectful of me and my home (didn’t hear any raised voices, loud music or bad language) and cleaned up well after themselves.
My boiler install went smoothly, the power flush has greatly improved the performance of my radiators and it is a joy to now have reliable heating and hot water! I felt the price for my job was very reasonable too, especially with the added extras like free 1st year boiler service.
Thank you Teresa, Conor and team! I whole heartedly recommend C1 Boilers and would have no hesitation using their services again.

February 4, 2026
Rated 5 out of 5 stars

Highly recommend heating engineers

Annual service highlighted a faulty seal. Seal was replaced and service was completed in super fast time. Amazing and speedy service from Connor & his team. Would highly recommend.

February 16, 2026
Rated 5 out of 5 stars

The engineer was patient

The engineer was patient, efficient, and approached the task with care and attention to detail. He gave completely satisfactory service and ensure that I will always recommend your company.

January 21, 2026
Rated 5 out of 5 stars

Extremely organized and highly…

Extremely organized and highly professional. I've relied on C1 for yearly maintenance before, and once again, they impressed me. They arrived promptly, communicated effectively, maintained cleanliness in the house, and excellently replaced the boiler. I wholeheartedly recommend their services.

January 21, 2026
Unprompted review
Rated 5 out of 5 stars

Reliable and professional service

C1 Boilers serviced my boiler and hot water tank. The engineer arrived on time, explained what was being done, and everything was completed without any issues. This is the second time I’ve used them and I’ve been happy both times. Good value and reliable service.

January 12, 2026
Rated 5 out of 5 stars

Each time we have had our boiler…

Each time we have had our boiler serviced we have been given avcurate advance warning of our appointments and job has been quietly and efficiently carried out. Any issues are explained and advice given to help resolve them

January 13, 2026
Rated 5 out of 5 stars

Great customer service

Great company. Prompt reply to my enquiry and arranged boiler service very quickly. I had a few questions regarding my gas radiators and gas fire in my house which Connor was able to advise me about. He was extremely helpful. Would highly recommend.

January 9, 2026
Rated 5 out of 5 stars

Very professional and well organised

Very professional and well organised. I’ve used C1 previously for annual servicing and was equally impressed this time. Turned up on time, communicated clearly, kept the house clean and tidy, and did a great job with the boiler replacement. Would definitely recommend.

January 10, 2026

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