Clear Blue Gas
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Clear Blue Gas
We are experts in our field, providing services to the domestic, commercial and public sectors for over 20 years. Our expert engineers are Gas Safe and OFTEC Registered, and provide a friendly and professional service for local customers in the Retford, Gainsborough, Newark and Lincoln and surrounding areas.

We are proud to be a Platinum accredited installer for Worcester Bosch, and can offer up to 10 years guarantee on gas boilers, and up to 7 years on oil boilers. Whether you need a new boiler, repairs, maintenance or servicing - for gas or oil - we can help you. We also have a team of plumbers who can offer you the highest quality workmanship and services for all plumbing and bathroom works.

Looking for Clear Blue Gas? That's us! We rebranded from Clear Blue Gas to CBG Heating several years ago, as our specialist CBG Oil team are central to our business. If you have a boiler problem our expert heating engineers provide free quotations and can often fix your boiler the same day. Our engineers are Gas Safe and OFTEC registered so they are qualified to safely repair your gas or oil boiler.
Services
No matter how big or small the problem, you can trust us to get your boiler and heating system back to the way it should be. We put your peace of mind at the heart of everything we do. Our commercial clients trust us to keep their offices, shops, properties and schools warm. Trust our expert heating engineers to fix your heating and hot water quickly and reliabily.
We always give you our best, but you don't have to take our word for it - read some testimonials from our customers. I had my new boiler fitted last week the guys had a hard job due to the age of the house but made a fantastic job. Really tidy and clean and very polite. The work was completed in 3 days much to my amazement and I am very very pleased.
These video tutorials, from Worcester-Bosch, show step by step information of how to help improve pressure to your boiler, re-set your boiler and bleed your radiators. Safety First - It is important to watch the video and understand the instructions fully before doing anything to your boiler or radiators.
Our team of expert gas boiler installers provide excellent service, with pay monthly finance options available. Our team of experienced, Gas Safe accredited engineers are experts at installing, repairing and servicing gas boilers (and other gas appliances).
We understand that a new boiler can be a big expense, and you might not have the funds available. In order to help you, we are pleased to offer pay monthly finance deals[1] on any of our new Worcester Bosch boiler installations. Older boilers are often inefficient, converting as little as 60% of the fuel they use into heat.
Reviews (12)
Stephen Drew
Stephen Drew
Dec 20, 2020
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Critical: Responsiveness
I left a message twice with a receptionist at this company for someone to contact me concerning new central heating. No one ever did.
Jim Swigs
Jim Swigs
Nov 05, 2019
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Great quality service at reasonable prices. Engineers are polite and knowledgeable and I will use them in future
Dominic Davis
Dominic Davis
Oct 16, 2019
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They serviced by boiler that they fitted last year,
Helped talked me through the controls again
Happy with service
Edward Swindells
Edward Swindells
Aug 07, 2019
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Absolutely rubbish service. Advertise everywhere. Yet if you phone them as a new customer. They simply say - no staff
Stephen Smith
Stephen Smith
Jul 09, 2019
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Recently moved in. Booked a service with CBG who came when agreed. Anthony was such a pleasant, knowledgeable and helpful guy, only too willing to help out in a very proactive and helpful way. Even showed me another way to bleed a radiator as the nipple was destroyed. Others had said I would need to replace the radiator. Checked out a few other issues in the same way. Splendid service. The invoice arrived by email shortly after and was very reasonable. Excellent service and highly efficient in addition to pleasant. A rare combination. I don't usually do reviews unless really impressed.
Stephen Hill
Stephen Hill
Sep 10, 2018
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It is now near enough six months since we had our heating serviced, a new oil tank installed and a power flush to the system. We couldn't be more pleased with the way it has improved the heating to our home. Thoroughly professional, the two engineers Richard and Steve were top blokes, Richard in particularly helping us out by discovering a serious water leak we had. Would highly recommend.
Whitey White
Whitey White
Jun 18, 2018
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What a wonderful and professional company to have had the pleasure of having at the house. Good price and kept us informed of everything at every stage. The guys were friendly and a real pleasure to have around. The work was truely outstanding. Nothing was ever to big or too small and they were flexible and worked around us when we hit a bit of a personal snag.I will recommend to every single person i know 🖒 well done guys and keep up the good work.
Lilian Eldridge
Lilian Eldridge
Nov 11, 2017
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I had my new boiler fitted last week the guys had a hard job due to the age of the house but made a fantastic job. Really tidy and clean and very polite. The work was completed in 3 days much to my amazement and I am very very pleased . I would also like to thank them for my beautiful flowers which arrived today a really lovely touch and very much appreciated
Gaz Milner
Gaz Milner
Nov 10, 2017
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A few years ago we had a boiler installed, and the installation fully certified. For 7 years the service agent passed the boiler and installation. Last year he noticed a problem, and told us the installation was At Risk. Several contractors have viewed the job and advised on the remedial work, and left quotes only to change their mind at the last minute. Three weeks ago, I contacted CBG Heating who inspected the job and supplied a quote within 72 hours. Yesterday the engineer did the job to the highest standard, and cleaned up afterwards. I wish I had contacted them in the first place.
Helen Finney
Helen Finney
Sep 26, 2017
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I have recently moved house and needed to replace the existing boiler. Having no knowledge of oil boilers, I did a lot of research to find a reputable firm. I was not disappointed. Ben and Richard did a brilliant job of installing my new boiler, power flushing the system and fitting new thermostats on the radiators. They were hard working but took the time to answer my endless questions about the new boiler. I would certainly recommend this company should anyone require such work to be carried out. No doubt I will be back next year to replace my oil tank. A job well done.
Carol Ann
Carol Ann
Jul 19, 2017
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Service was good, any niggles after they were straight out to rectify. Would definitely recommend. Very pleasant engineers too.
Stephanie Stasiuk
Stephanie Stasiuk
Jun 20, 2017
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CBG Heating installed the oil boiler and oil tank at my parents house in East Markham, near Tuxford. The service was great and we will use them again for servicing.