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JJ heating & Cooling – Services

JJ Heating & Cooling

Boiler and Air Conditioning.

Repairing | Services | Installation

Call us 07525783437

Contact details

About us

J J Heating and Cooling is taking care of all your gas and Air Condition installations. We install new central heating systems, new boiler installations, we do power flushing, Landlord Certificate and a range of other gas appliances and services. We provide comprehensive advice, high-quality professional work and an extensive level of service which is monitored always - both during and after the completion of the project. We're there for you, in person, both during and outside of normal office hours.

Whether it’s a small plumbing job or a large project, our top aim is to deliver an excellent customer service. We understand the importance of reputation in our trade and win the majority of our work through referrals and repeat work. In order to achieve this, we treat every single one of our customers with respect to maintain a high standard of work. All our engineers are DBS Checked, you can be sure that you are in safe hands with our approved, qualified engineers. We are providing a fast, efficient and professional service, with local prices.

Night and Day, we are just a phone call away. For all your Heating Plumbing, & Drainage Requirements.

Boiler Installation

Boilers work hard all year around providing hot water and keeping your house warm. We can assess your home and advise you on the best boiler for your home and your requirements. Each installation is personalised to you and your requirements for your home. We can help you to reduce your bills and make your home more energy efficient.

If you struggle with space in your home, then a Combi boiler is ideal for you. A combi boiler is very efficient as an all in one solution for your heating and hot water needs. There are no hot water cylinders or tanks in your roof space and you have hot water on demand unlike a traditional boiler.

However traditional boilers are better for larger homes with multiple use. A system boiler is also another option for larger homes which operate similarly to a combi but requires a hot water cylinder. For any boiler installation we do, we make sure not to cause too much mess and clean up after ourselves, allowing you to continue as normal with your new boiler.

Contact us to schedule a free visit to discuss your boiler installation options. An expert engineer will come and visit and assess which boiler installation would suit your requirements depending on what you need. We can also discuss with you the benefits of each boiler, so you understand the options that you have. We will then offer a fixed price quote for all the boiler installation work and explain the installation process. Our engineers can work around your schedule to install your new boiler. And we also offer boiler maintenance and servicing around .

Boiler Repair

We are dedicated to getting you and your heating system back up and running as it should be. So, if your boiler has stopped working or is not working correctly give us a call and we will sort all your problems. If your boiler needs a new part, we can get that usually within 24 hours.

Common Boiler Repair Faults
Below are some common boiler faults we can help you fix. If you require further information, then please do not hesitate to get in touch.

No heat or hot water 
This is a very common problem and can be caused for a variety of reasons. There may be no pilot light, a problem with a diaphragm, an airlock or a motorised valve may have failed. Also, it could be that your thermostat is not turned up high enough (a very common problem!) or there could be a leak on your central heating system that needs to be fixed.

Radiators not getting hot enough 
There could be air in the radiators which can sometimes be released by using a bleed key. Also, cold patches on the radiators can be caused by the system water being dirty. Your engineer may recommend a power flush to resolve this. Also, there could be a problem with the radiator valve which may need replacing. It is always good to have thermostatic radiator valves on your radiators as you can control how warm your radiator will get depending on your preferred temperature.

Banging noises 
There could be sludge or debris in your system water which is then going through your boiler or there could be air in the system. Also, if the boiler is scaled up, this will cause it to make some funny noises too. Alternatively, it might be that the water pressure is too low.

Pilot light going out 
This could be caused by a broken thermocouple or there could be a problem with the gas valve. Also, if the air seal is broken, a draught could blow out the pilot light. It may be that the pilot light needs to be cleaned as it may be blocked with debris.

Losing pressure 
The most common cause of a boiler losing pressure is a leak on the central heating system. Also, the pressure relief valve could be faulty and/or the expansion vessel failing (it could be both).

Frozen condensate pipe 
Condensing boilers have a condensate pipe which takes away water from the boiler. From time to time, this can freeze which causes a blockage resulting in the boiler failing.

Thermostat problems 
Thermostats can fail when they get older as they can become inaccurate in their readings. This means that they turn the boiler on and off at the wrong times when they are not supposed to.

Leaking boilers 
From time to time, seals on boilers leak and need to be replaced. Faulty seals are the most common reasons for a leak.

Boiler keeps switching off 
This could be caused by low water pressure, a blocked condensate pipe, air in the system or the pump not circulating the water in the system properly. Our emergency boiler repair team will be able to solve all of these issues.

Boiler Service

A Service to help keep your boiler running smoothly. Your gas boiler is an essential part of your home. You rely on it to bring your heating and hot water. Carrying out an inspection on your boiler will help keep it running smoothly throughout the year. JJ Heating and cooling registered engineer will conduct a service on your boiler. They will also offer advice and tips on using your heating more efficiently. During your warranty period, which could be up to 10 years, manufacturers require you to have an annual service to keep the warranty valid. Whilst your boiler is under guaranty, if you do not have a service once in every 12 months then your warranty could be void.

Having your boiler serviced regularly may reduce the risk of a breakdown and may also help to prolong the life of your boiler.

Plumbing or heating

Whether the problem is with one radiator, a broken pump, valves you can rely on us to keep your home warm and your water hot.

Our engineers can provide a same day service or 24-hour emergency repair to assist you so that your home is not left cold. Our central heating systems specialists will come and check your boiler and radiators and ensure that they will be working and be energy efficient.

Central heating has become a necessity in our everyday lives rather than a luxury.

Poor central heating is more than just having a cold home. You are forced to spend more money and waste energy trying keep the heat up. We are able to upgrade your current system or carry out a full replacement depending on the extent of the damage and your budget.

Landlord Certificate

We are fully accredited Gas Safe Engineers. We can either carry out inspections prior to or during tenancies, with minimal fuss and disruption. If there are any issues, we will advise you and provide you with a no-obligation quote for any necessary work. In addition, we can install CO alarms for extra protection.

Our landlord services are designed to ensure you meet your legel obligations quickly, cheaply and with as little fuss as possible. We only use gas and heating engineers who are on the Gas Safe Register, so you can be sure your property is in the best hands.

UK landlords with gas appliances and fitting – including central heating, boilers and flues – must conduct an annual safety check conducted by a Gas Safe engineer. If you are unsure whether the Gas Safe regulations act (1998) applies to you, you can find out on the government’s Health and Safety Executive (HSE) website. If you are a landlord however, it is very likely that these laws do apply to you. You must keep record of the safety check for two years and supply new tenants with a copy of the certificate before they move in and within 28 days of completing a new check.

Power Flush

Power Flushing

There are a number of reasons why you may need a power flush for your central heating system including cold spots, noisy pumps, leaks or if your radiators need bleeding or venting often. Power flushing consists of many steps that should only be carried out by a professional.

A chemical is added to the system which helps to remove the deposits. This is circulated through all the radiators and is reversed to help the flow of the chemical. The deposit is then disposed of and the mains supply is connected to the radiator flush circuits.

The water that was being used to flush the system is discarded out until it comes out clean.

The main benefit of power flushing is that your central heating system works much more effectively and efficiently. The pipes become free of any sludge and deposits, so your boiler does not have to work as hard to keep your house warm or provide hot water.


Whether you have an existing drainage problem that keep raising its head:

  • Blocked Sinks
  • Blocked Drains
  • Blocked Toilets
  • Blocked Pipes

Air Condition


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