HEATING, PLUMBING & INSTALLATION SERVICES IN CARDIFF

Plumbing and Heating Engineers in Cardiff and the Vale of Glamorgan

Why choose us?

What sets C.S. Boxall apart?

Leave it to your local plumbing and heating experts, C.S. Boxall provides trusted boiler installation, boiler repairs, and boiler servicing across Cardiff, Penarth, Bridgend, Port Talbot, Caerphilly, and the Vale of Glamorgan.

We’re a large, well-established, industry-accredited company offering the highest standards of heating, plumbing, and electrical work for both domestic and commercial properties. Whether you need central heating installation, ongoing central heating servicing, or urgent central heating repairs, our experienced engineers deliver prompt, professional service every time.

To keep your system performing efficiently and to reduce energy costs, we also recommend routine maintenance through our annual boiler servicing and central heating maintenance plans. In addition to heating, we handle all aspects of plumbing work and commercial plumbing and heating solutions.

Get In Touch
For all your aga and Rayburn emergency repairs, servicing & breakdowns

Call our experts at c.s. boxall

24/7 Emergency Plumbing/Heating Emergency Callouts

Call us on
07590 350 650

Commercial & Industrial Services

We also offer a wide range of commercial and industrial applications, creating comfortable and safe environments.
Our testimonials
C.S Boxall Ltd place picture
4.6
Based on 77 reviews
Stephen Wright profile picture
Stephen Wright
2 weeks ago
Outstanding Service – C S Boxhall – A Company That Truly Cares! ⭐⭐⭐⭐⭐ I cannot speak highly enough of this company. We have lived in Cowbridge for 25 years, and C S Boxhall have looked after our Worcester oil-fired boiler throughout that entire time. They have always delivered, but what happened last Friday deserves special recognition. The two wonderful ladies in the office worked an absolute miracle! From me simply popping my head around the office door to having an engineer standing at my front gate took just 45 minutes. Within another 20 minutes, he had our boiler fired up and running again. Two replacement valve parts were ordered, arrived this morning, and another engineer is already here fitting them. That is what I call exceptional customer service. No fuss, no excuses, just genuinely helpful people who care about their customers and take pride in what they do. We are constantly being told that artificial intelligence will one day dominate the world and outperform humans at almost everything. Well, I have news for AI: you have a very long way to go before you can match the kindness, personal attention, common sense and sheer willingness to help demonstrated by the people at C S Boxhall! After 25 years as a customer, they still manage to exceed expectations. Well done, C S Boxhall! You have genuinely restored my faith in good, kind-hearted, helpful human beings. A fantastic local company with fantastic people. If only every business operated like this! Thank you to the two lovely ladies in the office and both engineers. You are an absolute credit to your company.
Allen Shaw profile picture
Allen Shaw
3 months ago
Over the past 12 months I have been having my property completely refurbished. During this time I have had some unrelaible workmen with poor and shoddy workmanship carried out, to the point that I have no faith in workmen, despite them coming recommended. However Boxall have bucked the trend doing a complete bathroom installation. The finish is fantastic and their attention to detail is superb. The workmen are friendly, and communicate clearly at every stage of the job. They are clean workers and showed total respect for my property not like the majority of workmen that i have used in the past. I would highly recommend C. S. Boxhall Ltd and I would undoubtly use their services again. Thank you for a fantastic job.
Peter profile picture
Peter
4 months ago
Excellent professional and friendly service from the team at C S Boxall. Gas boiler,fire and hob serviced to a very high standard. We will be contacting them for all our future work. Highly recommended.
Daniel Ruffe profile picture
Daniel Ruffe
4 months ago
I can't recommend this company enough. Craig and Rhys brought exceptional diligence and professionalism to the work and installation.  It wasn't the easiest job having to trace through everything and ensure the work was done with a view to current functionality and our future plans, but nothing was too much trouble and they were a pleasure to deal with.
Neil Poacher profile picture
Neil Poacher
4 months ago
Highly recommend c s boxall very efficient
Christine Morse profile picture
Christine Morse
5 months ago
I had to have a replacement bath panel, sink, taps and vanity unit. Special thanks to Morgan (a credit to the company) and Mark who were both excellent. Nothing was too much trouble. They took away the original panel etc to dispose of and cleaned up afterwards.Also to Donna who was the first point of contact, who was helpful and friendly throughout. I would definitely recommend
Kath profile picture
Kath
8 months ago
Excellent customer service from start to finish. Mark and Adam did a superb job of my bathroom, which looks beautiful. They also cleaned up so well after themselves that you wouldn’t have known they were there. Colin and his excellent team at C S Boxall, including the office staff and all tradesmen, were totally professional and made the whole process totally pain free. Excellent price too. Highly recommended.
Anthony Hadland profile picture
Anthony Hadland
2 years ago
After visiting friends who had a shower installation by Boxalls and could see the quality of the workmanship, we decided to have our bath removed and full size shower fitted. Cannot praise enough the quality of the work and the friendly service by the fitters. Nothing too much trouble. First class
Family business which is local and friendly, understanding and very professional. From the office staff, all the way down to the trainee/apprentices, they all help to sort out problems. We had new boiler, shower and toilet, as well as an emergency leak which thankfully was only a loose joint. Will always use this local company - Thank you all
Becky Dean profile picture
Becky Dean
2 years ago
Had a new heating system and oil boiler. Really happy with the job, great company and would recommend and use again.
Friendly and efficient service from this company. The engineers worked competently and cleanly concluding in a satisfactory result, and it would be difficult to find any criticism.
Chris Speed profile picture
Chris Speed
2 years ago
Just had a complete new heating system installed including combi boiler, radiators and all new pipe work. The team were very respectful of our property and a pleasure to deal with keeping us informed of their progress. I would highly recommend CS Boxall and their team. Also very competitive on their pricing.
A J profile picture
A J
3 years ago
Craig visited my house this evening because my boiler wasn't working and he was brilliant. Really kind, polite and professional and fixed the issue quickly, explaining things to me and making extra effort to check my oil tank that is underground and removing another cover after the job was done to teach me how to deal with possible issues that he thought might come up before my next service. He came out last minute when he had been meant to go home, which was much appreciated and he was even really friendly to my kids (who were probably not helping by trying to show him their collection of rocks) and my cat (who was also getting in his way). Thanks for being so lovely!
Hayden Boxall profile picture
Hayden Boxall
3 years ago
Philip Need profile picture
Philip Need
3 years ago
I have employed several plumbers over the years to do repairs and changes in my house, but now that I have discovered Boxall's I won't be going anywhere else. Whatever I ask for (boiler service, shower replacement) I always get someone who's is quick and competent. Emergencies are dealt with extremely quickly, and they don't cost any more either.
Gareth Lewis profile picture
Gareth Lewis
3 years ago
Fantastic service from a local, family run business. Would happily recommend to anyone!
Clare Davis profile picture
Clare Davis
3 years ago
Craig and Dave did a fantastic job on installing our new boiler and were really pleasant and helpful throughout the process - we could not be more pleased with the result!
Jems profile picture
Jems
3 years ago
Just want to Highly recommend C.S Boxall plumbers who just removed our old Rayburn and fitted a refurbished one for us. They have been Excellent through the whole process - thank you so much to all - from the very helpful lady in the office who very quickly got back to us re calls and messages to book in, Colin who gave us quotes and options, Paul who quickly sorted an issue with the old Rayburn in the summer and an especially Big THANK YOU to David and Craig for fitting the new one last week for us - they were just great - so helpful, professional, polite, knowledgeable and answered and explained all our many questions! cannot thank them enough for doing such a thorough job, fabulous Thank you again, M+S Davies.

What our clients are saying

First time using CS Boxall. When I phoned, the office staff were so friendly and ready to help. They got me booked in quickly. When the engineer attend he was very polite and helpful and sorted the problem out. Would definitely recommend, a fabulous service.

Donna Thomas

Excellent company, I always have them for the annual boiler service which is very reasonable but more importantly they always assist with a problem. No hot water or heating last night, I left a voicemail and the engineer called at 8.15am and arrived at 10am, fault found and fixed. A big thanks to Alan for this and the office staff for sorting, would highly recommend CS Boxall

Heather J

Amazing service, fixed my broken washing machine pipe in no time and I got an apportionment straight away too. Will Definitely use again.

Hayley Smith

I must say that your boys and your team were absolutely fantastic in the quality of work, the organisation of trades were to super professional level.

You must be really proud.

Paul Smith

I would like to say thank you for the recent shower works carried out. We are so pleased. All aspects of the work were dealt with so professionally and at all times staff were so accommodating regarding dates /times etc.

Rhys was particularly helpful. Would highly recommend your company.

Amanda Drew

I would just like to send a huge message of thanks to your engineer who sorted out our Rayburn boiler/timer problem last Tuesday. Please tell him it’s working perfectly now and convey our gratitude to him for his perseverance .

Thanks to your company too for its excellent standards of workmanship and professionalism. We have used you for a while now and have been very impressed with your high levels of service.

Sally Moran

Just wanted to thank you for the fantastic work that was done in our house. Both men were extremely polite and hardworking and did a brilliant job. We are also very grateful for you coming out much earlier in order for us to have heating again.

Excellent Service. Thank you so much.

Sarah Harper

I just want to pass on my thanks and appreciation for the work that you have recently provided help to get our boiler / heating back up and running in the hospice.

I'm sure that you're very busy but i really value how responsive you've been to help us.

We're really grateful to be working with you and I'm sure it's the start of a successful partnership.

Jason

I would like to say a huge thank you to the lady who took my call yesterday and managed to get someone to us in minutes. To say yesterday was stress would be an understatement. The plumber that arrived was so calm and collected and I just wanted to thank the company so much and apologise for my highly emotional state. No one ever expects to open their front door and be faced with that and especially so close to Christmas... on the day you are due to exchange on the house!

Thanks again and we will be recommending you to everyone!!!

Beca Griffiths

Can I please also pay a compliment to David for his outstanding work yesterday and thank you all for getting the heating working much sooner than I'd anticipated.

Jon Taylor

I wanted to say once again how helpful the two men were. They answered all my questions and were just very considerate.

I have been so pleased with your company and would highly recommend you.

Clare Hockings

I would like to thank you for the installation job last Thursday. Your men did a great job. Mine is not an easy property to work on or in and they were efficient and professional and very prompt in their timing of the work in spite of all.

They also did go above and beyond with details and did not treat me like a lamebrain civilian which made a change.

Judith Browne
Our credentials

We’re accredited

To ensure our customers receive a high standard of workmanship, experience is accredited and monitored by several trade industry bodies.