Commercial heating services, Hemel Hempstead

Commercial plumbing and heating

Our commercial heating services are available In Hemel Hempstead and are provided by engineers who are fully trained and competent to carry out a full range of services on a wide range of commercial installations.

We are happy to help in any premises, from small offices to factories and warehouses, hotels and restaurants, and schools.

Commercial heating services

Our commercial heating services

  • New boiler installations
  • Commercial gas pipework
  • Strength and tightness testing
  • Gas interlock systems
  • Gas safety certificates
  • Breakdown
  • Servicing and repairs


Top Plumb can supply commercial boiler installation for both large domestic and commercial applications and can be installed on their own or as part of a multi-boiler ‘cascade’ system. We install extremely versatile and compact wall hung and floor standing condensing boilers, in all output sizes and ranges.

We work with all the major manufacturers including Worcester Bosch, Vaillant, Veissmann, among others.

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Our flexible funding solutions for commercial boiler finance are designed to fit around your needs. Read more.

Working with

Contact Top Plumb

Opening times

We're currently closed.
Mon.8:30 am – 4:00 pm
Tue.8:30 am – 4:00 pm
Wed.8:30 am – 4:00 pm
Thu.8:30 am – 4:00 pm
Fri.8:30 am – 4:00 pm
Sat.Closed
Sun.Closed
Based on 58 reviews.
Chris Bowmer
Chris Bowmer
12. July, 2021.
I was looking to make space and put all the hot water things in the loft along with fitting some new radiators and installing a Nest system. Really exceptional service, they: - turned up to quote the day after my initial enquiry - provided a really detailed quotation for materials and labour - had everything done in three days - solved problems on the go (and kept me informed) - fitted floor protection to all areas during the works - helped me save money on certain products I had requested - cleared up each night - fitted a temp supply to keep the water running All in all the solution they provided is vary economical on space with neat pipework and everything labelled. As I was working when they finished the works they also came back at the weekend to teach me how to use it all (which must have involved some patience)! Affordable, professional, hassle free and friendly!
Paul Jay
Paul Jay
13. May, 2021.
Absolute Top Quality with Top Plumb Hired this company on recommendation of another local plumber who didn't cover my area, and from the initial email with Office staff, Kevin visited and discussed my requirements and gave recommendations. Nothing was too much trouble and all questions were answered honestly and quickly. The quote prepared was in the middle of two others, but as Kevin explained the pros of my boiler and the benefits it would give I decided to hire them. The workmanship from all members who visited my property was 1st class, the carpets were protected from the start and the work done to the highest quality and everything was left clean and tidy on departure. I will be using them again in the future for my annual servicing, as they are a company I would highly recommend to others and the staff know what they are doing and the service top class. Its not always easy to find these days, so keep it up and keep doing what your doing!
Paul Holloway
Paul Holloway
11. February, 2020.
I've used Kevin and Andy from TopPlumb for a number of years now for my plumbing needs. They do a great job and I'm very happy with their level of work. Couldn't recommend them highly enough.
New Scientist Labs
New Scientist Labs
27. January, 2020.
Came out very quickly to fix my boiler, and very pleased with the quality of work Would definitely recommend.
Rosa Mariano
Rosa Mariano
27. January, 2020.
Excellent service and always clear with costing and scheduling appointments. The work carried out was great and the plumbers are incredibly polite and professional. I would happily recommend Top Plumb.
Paul McQueen
Paul McQueen
4. December, 2019.
Kevin and the team provided a very swift, quality and professional installation of our new boiler. Right from the initial quote through to install I would certainly recommend them.
Sasina Keereechot
Sasina Keereechot
21. October, 2019.
I would just like to thank Kevin and Andy from Top Plumb for the great work they carried out on my recent renovation. The bathroom installation and kitchen work was carried out quickly , professionally and with care. The whole job was well explained and competitively priced. Will definitely use them again , highly recommend these guys 👍🏻.
Pietersen Lorinda
Pietersen Lorinda
10. October, 2019.
Andy from Top Plumb has attended our business many times for various plumbing services (new boiler & new piping,flushing radiators, leaks to name just a few) and has always provided 1st class service, efficiency & knowledge. He is always polite & amiable as are all the staff. Highly recommended.
Andrew Bradford
Andrew Bradford
9. October, 2019.
I recently had a new boiler installed by the Top Plumb team and wanted to write because they got me out of a spot of bother and did an excellent job. I called up because our boiler failed and we had no hot water, making bathing my 2 year old son a nightmare. Noting that it was urgent, they shifted some things around in their schedule and came within 2 days. The guys turned up (and team of 3) as promised at 0800, worked their socks off all day, and the job was completed by 1800 that day. Not only were the guys thoroughly professional, but they did a first class job for what I regard as a very competitive price. So impressed was I that I've called Top Plumb a couple of times since then, for much smaller jobs. Again, the service has been first class, even though one job only cost me £40. I was recommended Top Plumb by my neighbour, and I would highly recommend them to anyone looking for a plumber or heating engineer. Andy and Kev both really know their stuff and have looked after me really well.
Susan Inglis
Susan Inglis
9. October, 2019.
Thank Goodness I Came Across This Company who solved my boiler and heating problems which another plumbing firm did a terrible bodge job on and left me with no heating or hot water. Andy had a very difficult task on his hands as he had to remove some piping and rerun new to get the system to function. To say the task was challenging is to belittle what he had to do, but bless him he persisted and got us up and running again. For his work ethics, persistence to overcome the difficulties he encountered together with his personable manner I would recommend this Company whole heartedly and am so pleased I engaged their services.
Gas Safe plumber
Registration no. 525148