Two new staff to support growth

We are delighted to announce that we have have recruited two new staff to join our team.

We have a new senior electrical engineer. He has more than 15 years’ experience in electrical work across a number of sectors and environments.

We have a new heating engineer. He has more than 20 years’ experience as a heating engineer. He has started at SDH with a project to replace the heating system at a care home in Middlesbrough.

Commenting on their appointments, Managing Director, Steve Hunt, said: “They will add to the company’s skills base and complement our existing team. Both offer lots of experience and will enhance our ability to meet the needs of our customers in what is a period of growth for the company – despite the current economic climate.”

Our work – on a sub-contract or direct-to-the-client basis – is nationwide and covers commercial buildings such as supermarkets, offices, hotels, restaurants, factories, schools and care homes.

Our services cover commercial heating, electrical, plumbing and air conditioning.

For further information about SDH Building Services, please visit or search ‘SDH Building Services’ on Twitter, Facebook or Google+.

What are heat pumps and why householders should consider them?

Rising electricity and gas prices, coupled with rising food and petrol prices, are putting a strain on many people’s budgets.

People are therefore looking more closely at their monthly bills and are considering alternative home heating systems – as seen by the rise in solar panels to provide electricity.

Heat pumps are one type of alternative heating and provide heat for your radiators and water.

Basically, heat pumps come in three types: air source, ground source and water source. We’ll talk about ground source and water source in future blogs. For the moment, we are going to concentrate on air source domestic heat pumps.

Air source domestic heat pumps, as the name suggests, extract the warmth from the air and convert this into a means to heat your radiators and water. The process is the same as how a fridge extracts heat from its inside.

Air source domestic heat pumps can extract heat from the air even in the winter when temperatures may fall up to minus 20 degrees Celsius.

Heat pumps create much lower carbon emissions – as a by-product – as they only use 25% of the energy consumed, the remaining energy is absorbed from the air around it.

Compared to gas or oil-fired boilers, air source domestic heat pumps provide heat at lower temperatures but over a much longer time.

They need to be left to run longer, but in a similar way to a car, driving one at 60mph on the motorway uses far less fuel (i.e. energy) than if you drove at 90mph. Your journey just takes a little longer.

Another tip is to get underfloor heating installed as it is more efficient than radiators as underfloor heating doesn’t need water to be heated to as high temperature as that required for radiators.

If it’s not practical or you don’t want the inconvenience of installing underfloor heating, installing larger radiators is a viable alternative.

Some households that get an air source domestic heat pump installed and notice that the radiators are not as hot as they were with their previous gas or oil-fired boiler make the mistake of turning up the thermostat disproportionally and this proves self-defeating with increased electricity costs. Conversely, if your gas or oil-fired boiler is old and inefficient, switching to an air source domestic heat pump can increase savings even further.

A good rule of thumb is to set the thermostat to between 20 and 22 degrees Celsius and don’t set the flow temperature above 45 degrees Celsius.

Out of all of the three main types of heat pumps, air source domestic heat pumps are the most common.

Some of the main benefits of air source domestic heat pumps include lower fuel bills, lower carbon emissions, and little maintenance other than an annual inspection.

Costs of an air source domestic heat pumps are typically between £6,000 and £10,000. The time taken to recoup the initial outlay – on savings in your annual utility bills – can be between 3 and 5 years.

Carbon dioxide sensors cut energy costs of ventilation systems

Creativity and ingenuity often come from frustration and adversity.

When we recently tried to source carbon dioxide sensors for a project and found out how much they cost, we put our thinking caps on and designed our own!

The SDH Building Services’ bespoke carbon dioxide sensors allow us to monitor ventilation systems in all manner of domestic and commercial buildings.

So far, we are finding that these sensors are particularly useful for schools, training rooms, offices, and gyms.

The sensors allow ventilation systems to provide high quality air in the space in which they operate.

The sensors also mean that ventilation systems are used less and therefore the organisation or business saves on energy costs.

There is also no reliance on a building management system nor on any staff to remember to monitor the ventilation system.

Heat pumps are the future

We installed an air sourced heat pumps in our offices in Bolton earlier this year. With rising gas prices, heat pumps – an alternative to conventional heating systems – are better value.

Air-sourced heat pumps can pay for themselves within five years.

Heat pumps, via electrical heating, are the future. As electrical and mechanical contractors, we are being asked to install heat pumps in small commercial and domestic properties more frequently.

We are able to assist customers with applying for an interest-free loan from the Carbon Trust to install heat pumps in schools, colleges, universities, offices, factories, libraries, residential and nursing homes, and sheltered housing accommodation.

Some of the other benefits of heat pumps include up to 30% per annum saving on energy costs,
reduced energy consumption and therefore lower bills for consumers, reduced carbon dioxide emissions and a smaller carbon dioxide footprint, plus less reliance in the short to medium-term on the vagrancies of gas suppliers. Heat pumps also give unparalleled indoor heating comfort.

Heat pumps work by extracting heat energy from the outside air. They are quite capable of providing heating and cooling for industrial premises as well as domestic premises where they are currently more known for. Yes, they can be used to provide cooling as well as heating.

Thanks to our heat pumps, we are not worried about forecasts that this winter is going to be a cold one!

Why you should install air conditioning in your office

Nowadays, a huge number of people work in offices around the country, and if there is one thing that everyone can agree on, it would probably be that offices can get unbearably hot, cold or stuffy at times. With so many people within one space, and often without windows that can open very far, air conditioning and ventilation can be the most logical addition to your office.

If you have the ability to make building changes such as adding or replacing the air conditioning within your office, you should put it under genuine consideration as it could help to ensure that your staff remains happy while working for you. It might seem like it wouldn’t much of an issue, as people can simply take off jumpers and few fewer layers to work, but installing air conditioning really could make all the difference where staff morale is concerned.

When employees feel too warm or cold, they are likely to feel quite ill. If your office space really does get too hot or cold, you may even find that your employee’s just don’t come into work. Also, they may simply begin to feel sleepy, fatigued and de-motivated, which could bring down your business’ output levels to a slow crawl. This will do absolutely no favours whatsoever for your revenue and Return on Investment (ROI), and you may actually end up losing money during the summer and winter months.

Air conditioning doesn’t have to cost that much to install or maintain, and your employees are guaranteed to be very thankful for your decision. One of the best things about air conditioning units is that they are multifunctional. In the summertime they can pump out fresh, clean, cool air that will keep everyone in your office feeling refreshed, but in the wintertime the tables are turned and they now produce very efficient heating. Because they are a heat pump they absorb heat from the atmosphere even at -20oC, this make them up to 4 times more efficient to run than a conventional gas boiler.


So, if your office is a bit of a Dr. Jekyll and Mr. Hyde and switches from swelteringly hot in the summer to absolutely freezing in the winter, an air conditioning unit might be precisely what your building needs. You may want to put it to a vote within your company to find out how many people would be for the idea, so you don’t end up wasting your money. However, you probably won’t find that many people that will be against the idea!

Look online now to find out more about air conditioning units.

You can find companies offering Bolton air conditioning servicing by checking on the internet for Bolton air conditioning maintenance businesses now.