Endorsed by Which?

David Osborne T/A Celsius Plumbing & Heating


85 Reviews

Opening Hours
Today -
  • Monday 09:00–17:00
  • Tuesday 09:00–17:00
  • Wednesday 09:00–17:00
  • Thursday 09:00–17:00
  • Friday 09:00–17:00
  • Saturday - Closed
  • Sunday - Closed

Organisations and Awards

Sep 2019



Established in 1999, Celsius Plumbing and Heating are proud to have built a reputation based on providing excellent workmanship while maintaining a personal, customer focused service.
We are a family business, but we have the knowledge and backup to tackle larger projects with the same efficiency and attention to detail.

We install, service and repair all makes of central heating boilers including natural gas, electric, oil and LPG and we are Gas Safe registered.

We also provide a bathroom design, supply and installation service and are affiliated with Utilities Warehouse, which can save you money by consolidating your utility bills.

What we do

  • Boiler, central heating and gas engineers

    • Gas safety testing and inspection
    • Gas fire repair and servicing
    • Radiators and central heating
    • Gas emergencies
    • Power flushing
    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Gas cooker installation
    • Immersion Heaters
    • Underfloor heating
  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance
  • Bathroom fitters

    • Accessible bathrooms and showers
    • Bath re-enamelling and surfacing
    • Bathroom design services
    • Bathroom Installation
    • Bathroom refurbishment
    • Bathroom tiling
    • Electric Showers
    • Wet rooms
  • Kitchen fitters

    • Granite Worktops
    • Kitchen design
    • Kitchen installation
    • Kitchen refurbishment
    • Kitchen tiling
    • Kitchen worktops
  • More Services

    • hot water cylinders

Customer reviews

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85 reviews
Customer Service
Sort by
Replacement electric shower
Customer Service
From my original inquiry about fitting a new electric shower I was impressed with Celsius. I spoke to Claire who quickly sent me a quote for the work and organised a date. We required an update to our electrics to cope with the power of the shower which was organised by Celsius and the work was completed by 2 electricians (McKissock) and the plumber. They worked hard and cleared up at the end. They explained what they had to do and how the shower worked. The electricians had to move some heavy furniture for access and did so with no complaint. All in all we were very happy with the work carried out and now have a great new shower which isn’t going to trip our electrics!
Customer in South Ayrshire Council Posted on 07/10/2021 , work completed 06/10/2021
The trader replied (on 12/10/2021)
Thank you for taking the time to write a lovely review, it was our pleasure to install a new shower for you Kind regards Claire Osborne
A Silk Purse out of a Sows Ear
Customer Service
Based on the satisfactory completion of two minor jobs by carried out for us by Celsius we sought David Osborne's advice on upgrading our 30-year-old, very inefficient, central heating system. David suggested that the existing pipework and radiators be replaced with larger bore pipes and larger radiators. The Vaillant boiler was only ten years old and was deemed to be worth retaining. In addition, he recommended the installation of TRVs on all radiators. David carefully calculated the size and number of radiators required and subsequently submitted his estimate which we accepted. The date for starting work was set some two months in advance and work started on time. Removal of the old radiators and installation of the new radiators and TRVs was straightforward. Installation of the new larger bore pipes was trickier, involving much time threading the pipework through the void underneath the ground floor as well as in the eaves of the house. Nevertheless, the work was carried out with minimal impact on me or my wife. Dust sheets were laid out and the house remained habitable with the minimum of mess and disruption. The work was neat and tidy, the house was left in good shape at the end of the project. Communication was very good. Shortly before work began Claire Osborne had notified us of an impending price increase on the hardware and we were able to buy at the old price, quite a saving! The job was completed on budget and on time. Our system now works very well.
Customer in North Ayrshire Posted on 03/10/2021 , work completed 07/09/2021
The trader replied (on 12/10/2021)
Many thanks for choosing Celsius to install new radiators, David enjoyed the challenge of installing the pipework throughout and i loved the kind treats made by your lovely wife Kind regards Claire Osborne
Excellent experience
Customer Service
Really can't fault Celsius and the team. From letting them know we had an issue with our boiler to them coming and eventually replacing it. Then mid replacement finding a gas leak. They took the time to find the leak and fix it all the while being brilliant and efficient and relaying information. Customer service was great too. Really did go above and beyond and we are forever grateful. All round excellent work from an excellent team.
Customer in South Ayrshire Council Posted on 09/02/2021 , work completed 08/02/2021
The trader replied (on 26/03/2021)
Thank you for your kind review, it was our pleasure to carry out the boiler install and remedial works for you. Kind regards Claire @ Celsius
Superb Service
Customer Service
Anyone who is thinking of plumbers and heating engineers , waste no time and call these guys, I had major issues with a unvented cylinder tank, which left me with no water to my property, (a conventional heating system), they knew how this system operated straight away, and scheduled me in for a repair. When the guys arrived, they were so professional and clean and respected and worked within the covid guidelines the experience of dealing with this company has been nothing more than professional. I would recommend this company to anyone. So if you want the job done right then call them . Superb service.
Customer in Renfrewshire Posted on 18/01/2021 , work completed 11/01/2021
The trader replied (on 26/03/2021)
Thank you for taking the time to write us a lovely review. We are very grateful you chose Celsius to carry out the works and get your hot water operational again. Kind regards Claire @ Celsius
Highly recommend this company
Customer Service
A leaking upstairs shower fitment was found to be the cause of water coming through the bedroom ceiling below! I turned the water off at the mains and started searching for a plumber. Celsius was a company I had not used, but saw it had good on-line reviews. David attended promptly, isolated the shower, which allowed the water and central heating to be turned back on. The rear of the shower fitment was in the loft space, so David took photographs on his phone to show us the problem. He sourced and installed a new shower fitment, without any disruption to the surrounding wall ceramic tiles. This was my first experience of Celsius and I found David to be pleasant, knowledgeable, efficient, prompt and a tidy tradesman. The price was acceptable and communication throughout was excellent. Celsius is now my Go-To plumber and I highly recommend their service to others.
Customer in South Ayrshire Council Posted on 26/11/2020 , work completed 21/11/2020
Excellent service from point of contact to completion of work
Customer Service
First contacted Celsius when we moved house and required gas safe inspection and an estimate for a new boiler. Unlike other firms in south Ayrshire, a timely estimate was provided and when accepted a timescale was agreed following discussion on options and Davey turned up to complete the work which he did to a high standard. He discovered a small but long standing leak which required him to replace floor boards. We were so impressed with his professionalism, we have gone on to commission him to create a utility room, new bathroom and new kitchen. Davey has created a reliable team around him from administration, to other trades and so we have not had the added stress of having to arrange electricians, plasterer, roofer, or arrange skips. He pays attention to detail and resolves any issues in a calm manner. I would unreservedly recommend Celsius.
Customer in South Ayrshire Council Posted on 11/11/2020 , work completed 08/11/2020
The trader replied (on 30/11/2020)
We thank you for taking the time to leave us a great review. We have really enjoyed working on your bathroom, kitchen and utility room and think they look amazing. Kind regards Celsius
Boiler service and Heating system repair.
Customer Service
We do not normally leave reviews for Products and Services but on this occasion felt that it was merited. Excellent customer service from David Osborne and his team, kept us updated reschedule, repairs carried out proficiently. Highly recommended would use again.
Doug Mills in South Ayrshire Posted on 05/11/2020 , work completed 23/10/2020
The trader replied (on 10/11/2020)
We thank you Mr Mills for your lovely review, it was our pleasure to work for you and resolve the issues with your system. Kind regards Claire @ Celsius
Terrific company and service
Customer Service
From the initial investigation of a non working boiler to a replacement new boiler I cannot fault David and the company at all. Prices and quotes were more than acceptable every time. They were able to find time in busy days, very late on one occasion, to look at and trace faults in the old boiler when we had no heating or hot water and they did this on more than one occasion. We then decided to opt for a full replacement given the age of the original boiler and were offered good quotes for different boilers the day of our decision. They did the work within 24Hrs of the quote being received by us!! Work area was clean and tidy when they were done. Phone call always answered or returned and they are friendly and helpful every single time. Cannot recommend enough.
Customer in South Ayrshire Council Posted on 17/10/2020 , work completed 13/10/2020
The trader replied (on 10/11/2020)
Many Thanks for your review, we understand at this time of year we have to prioritise heating to ensure our customers stay warm. Our engineers pride themselves on being clean and tidy. Thank you for your custom Kind regards Claire @ Celsius
My review
Customer Service
1. Investigate gas leak. 2. Very awkward access. 3. Source of leak determined and solution proposed. 4. Work completed at cost less than estimate. 5. Kept well informed of all aspects of work.
John, Ayrshire Posted on 29/07/2020 , work completed 03/01/2020
The trader replied (on 11/11/2020)
Many thanks John for taking the time to leave a review. Kind regards Claire @ Celsius
Prompt & professional
Customer Service
The service was excellent and to a high standard.
Elizabeth, Ayrshire Posted on 19/06/2020 , work completed 05/06/2020
The trader replied (on 22/06/2020)
Many Thanks Elizabeth, it was a pleasure to work for you. Kind regards Celsius Plumbing & Heating