Traditional fuel boilers and plumbing

Heat pump

heat pump

Top Plumb can supply and install a variety of heat pumps in the Hemel Hempstead area and beyond. We are F-Gas certified — a legal requirement for any heat pump installer— and also offer repairs and maintenance for existing heat pump systems.

All our heat pump installations start with an extensive survey where we carry out a room-by-room heat loss calculation. This provides us with the solid data required for us to design your bespoke heat pump system. We also take into account building regulations, the MCS standards, and your personal usage requirements, before finalising the designs and a quotation.

What is a heat pump?

A heat pump extracts heat energy from the air or ground, even when it is cold outside, and uses it to warm your home. Heat pumps are very efficient. A well-designed heat pump system transfers around three to four times more energy into a property as heat than it uses to extract it.

There are two main types of heat pump:

  • Air source heat pumps
  • Ground source heat pumps

Air source heat pumps are the most popular option as they require little space and cost less to install. Because of the land required, ground source heat pumps are generally better suited to larger sites.

How does a heat pump work?

how does a heat pump work

How do Air Source Heat Pumps work?

Air source heat pumps use the external temperature to extract heat and are the most common type of heat pumps. They are even suitable for use in flats above ground level. Some electricity is required, although it is only around 25% of the total energy used during the process.

An Air Source Heat Pump unit looks like an air conditioning unit and is mounted outside the property. Although it will not take up too much space, the unit will be visible from the outside of your property, and the fans make some noise. They are generally very quiet.

How do Ground Source Heat Pumps work?

Ground source heat pumps use a system of pipes embedded into the ground to extract heat. Therefor, there needs to be enough space in the land outside the building to allow installation of either a ground array or borehole system.

The pipework is not noticeable once completed. Some electricity energy is needed to drive the system, but it is only around 25% of the total energy used during the process.

Planning considerations

Air source heat pumps usually fall under ‘permitted developments’ so do not need planning permission. However, if you live in a national park or listed building check with your planning authority.

Find out more about heat pumps

Our manufacturing partners have a wealth of information on their website about their renewable energy systems. Click on the logos to find out more.

You can also read more on the Energy Saving Trust website.

Looking for heat pump installation in the Hemel Hempstead area? Contact Top Plumb

Contact Top Plumb

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We're currently open.
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
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Based on 59 reviews.
Diane Haywood
Diane Haywood
27. October, 2021.
Great service from initial first visit to installation. Thanks to all the guys, Kevin,John,and Ben. Would recommend this company absolutely brilliant. Thank you again.
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.
Gas Safe plumber
Registration no. 525148