Frequently Asked Questions
Super Efficient Ltd FAQs

It is recommended to heat your unvented cylinder as needed, typically once or twice a day. Modern systems often come with timers and thermostats to maintain efficient heating cycles based on your usage patterns.

A CCTV drain survey is used to inspect the inside of your drainage system and identify any issues such as blockages, cracks or collapsed sections. We use this service to accurately diagnose problems and recommend the most effective solution without unnecessary disruption.

The cost can vary depending on factors such as the size of the system, the level of cleaning required or the type of installation. We provide clear and transparent pricing, along with honest advice, so you know exactly what to expect before any work begins.

Our plumbing services include all types of shower fitting work. this includes:

• Water supply pipework
• Waste water pipework
• Heated towel rail fitting
• Shower pump installation
• Underfloor heating systems
• Shower trays and enclosures
• Bathroom flooring and tiling
• Above-bath showers
• Disability rail installation

If you have some requirements other than this, please let us know!

A Heat Interface Unit (HIU) is a system that connects individual properties to a communal or district heating network. It transfers heat from the network to provide heating and hot water to each property, offering efficient and controlled energy distribution.

There are several signs that may indicate a water leak, including unexpectedly high water bills, the sound of running water when no fixtures are in use, damp or wet spots on floors or walls, mould or mildew growth or a decrease in water pressure. If you suspect a leak, call us for accurate assessment and detection.

Common signs that your boiler may need repair include unusual noises (such as banging or whistling), frequent pressure drops, inconsistent heating, pilot light going out, and visible leaks. If you notice any of these issues, it’s best to call a professional to inspect and repair the boiler before the problem worsens.

Signs of a blocked drain include:

• Slow draining sinks, showers, or baths.
• Gurgling noises coming from drains.
• Foul odours coming from drains or plumbing fixtures.
• Water backing up in sinks, toilets, or showers.

Yes. Super Efficient Ltd provides a clear explanation of the findings, and where required, we can supply a detailed report along with footage. This is especially useful for property purchases or insurance purposes.

We can help with radiator installation, repair and replacement services. We can also help with:

• Repairing thermostatic radiator valves (TRVs)
• Diagnosing any unexpected knocking sounds
• Fixing loose or hanging radiators
• Removing sludge rust and debris with a power flush
• Replacing faulty bleed valves
• Moving radiators and pipes to new positions

We can often reach you and complete emergency plumbing work the same day. It will all depend on the time of day and whether we are in an area local to you. Please call 020 7126 7272 and we can let you know if the callout will be same day or next day.

A grease trap captures oils, fats and grease before they enter your drainage system. This prevents build-up inside pipes, reducing the risk of blockages and keeping your system running efficiently. We ensure your grease trap is properly installed and maintained for optimal performance.

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Maybe it isn’t energy efficient anymore or that it requires constant repairs. Your energy bills may be a lot higher because of an older inefficient boiler, new boilers can save you money. Contact us now for a free boiler installation quote.

The time to unblock a drain can vary based on the cause and severity of the blockage. In many cases, our team can resolve the issue within 1 to 2 hours, but more complex blockages may take longer.

Your boiler’s life span can be anywhere from 10-20 years. However, this is based on how well you look after your boiler, and it can last a lot longer if you have it serviced regularly.

It is recommended to service your HIU annually. Regular servicing ensures optimal performance, efficiency, and safety, helping to prevent breakdowns and extend the unit’s lifespan.

Landlords who rent out residential properties that have gas appliances, such as boilers, heaters or cookers, are legally required to obtain a gas safety certificate. It ensures the safety of tenants by verifying that the gas installations are regularly inspected and meet the necessary safety standards.

The frequency depends on the size of your system and how much grease your business produces. High-use kitchens may require more regular cleaning. We can recommend a maintenance schedule tailored to your needs in London.

Signs of a collapsed drain can include repeated blockages, slow drainage, foul smells or visible issues such as damp patches or sinkholes outside your property. If you are unsure, we can carry out a CCTV drain survey in London to accurately diagnose the problem.

If you get a water leak, first turn off the main water supply to prevent further damage. Then, try to contain the leak with towels or a bucket. Contact a professional plumber like Super Efficient Ltd immediately to assess and fix the issue. Avoid using any electrical appliances near the leak.

The cost to install central heating can vary widely depending on the size of your home, the type of system you choose, and the complexity of the installation. It’s best to get a detailed quote from a qualified installer like London for an accurate estimate.

Getting a free boiler repair quote from us is easy. Simply contact us on 020 7126 7272 and we will be happy to give you a free no obligation quotation.

Cleaning times can vary depending on the size and condition of the trap. Our team works efficiently to complete the service with minimal disruption to your business operations.

The most common metals used for plumbing pipes in houses are copper and galvanised steel. Copper is preferred for its durability, corrosion resistance, and ability to handle both hot and cold water. Galvanised steel pipes are older and less commonly used in new installations due to their tendency to corrode and restrict water flow over time.

A broken boiler can indeed be considered an emergency, especially during colder months when heating and hot water are essential for comfort and safety. If your boiler stops working, it’s important to contact a professional immediately to prevent potential risks such as frozen pipes or lack of heating.

Yes. We can install grease traps in both new and existing kitchens. We will assess your current plumbing and recommend the best system based on your usage and available space.

Yes, underfloor heating is compatible with various types of flooring including tiles, stone, laminate, engineered wood and even carpet. However, it’s important to consider the specific manufacturer’s guidelines and recommendations for each flooring type to ensure proper heat conductivity and compatibility. We can help you with this.

Electric heaters are typically the cheapest to install because they require no pipework or flue systems. However, while the initial installation costs are low, electric heating can be more expensive to run compared to gas or other systems. It’s important to consider both installation and ongoing energy costs when choosing a heating system.

Most CCTV drain surveys can be completed within a short visit, depending on the size and complexity of your drainage system. We aim to carry out inspections efficiently while ensuring a thorough and accurate assessment.

Emergency boiler repair times can vary depending on the nature of the problem. Generally, a professional technician can diagnose and fix common issues within a few hours. However, more complex repairs might take longer, especially if specific parts need to be ordered. Our team strives to resolve most emergency repairs on the same day to restore your heating system promptly.

Emergency boiler repairs typically include situations where the boiler has completely stopped working, there are gas leaks, unusual noises, loss of pressure, or when there’s no hot water or heating. Any issue that poses a safety risk or significantly disrupts your daily routine can be classified as an emergency.

No, it is not cheaper to leave underfloor heating on all the time. Underfloor heating systems are designed to be more efficient when operated on a schedule. Modern systems can be programmed to heat rooms only when needed, which helps to save energy and reduce costs compared to continuous operation.

The time required depends on the severity and location of the damage. Minor issues resolved with relining can often be completed quickly, while more extensive repairs involving excavation may take longer. We will always provide a clear timeframe after the initial inspection.

We prioritise non-invasive techniques to minimise damage to your property. We use advanced technologies such as acoustic sensors, thermal imaging and electronic leak detection devices that allow for accurate detection without the need for extensive exploratory work. However, in some cases, minimal access points or small openings may be necessary to investigate hard-to-reach areas.

No, installing an unvented cylinder requires specialised knowledge and certification. It must be installed by a qualified and certified engineer like Super Efficient Ltd to ensure safety and compliance with regulations.

Our general plumbing services cover:

• Dripping Taps
• Appliance Installation
• Thermostat Problems
• Clogged Overflows
• Burst or Leaky Pipes
• Shower Heads
• Shower Screens
• Hot Water Cylinders
• Blocked Toilets
• Perished Washers

A CCTV survey can identify most common drainage issues including blockages, cracks, root intrusion and collapsed pipes. While it is highly effective, we will always explain any limitations and recommend further steps if needed.

Yes, our emergency drain repair service is available throughout London when you need urgent help. We respond quickly to prevent property damage and restore your drainage system with minimal disruption.

We recommend a property plumbing maintenance check annually to catch minor issues before they become major problems. Spring is an ideal time as it helps prepare your system for the changing seasons.

Not always. In many cases, we can repair damaged drains using no-dig relining methods, which avoid the need for excavation. If the damage is more severe, excavation may be required, but we always aim to minimise disruption and fully restore the area afterwards.

Yes, all our heating and plumbing engineers are certified and gas safe registered. Even the smallest gas-related issue will be taken care of by one of our registered professionals.

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The cost of a CCTV drain survey can vary depending on factors such as the size of the system and the level of inspection required. We provide clear and transparent pricing, along with honest advice, so you know exactly what to expect before any work is carried out.

If a grease trap is not regularly cleaned, it can become full and stop working effectively. This can lead to blocked drains, unpleasant smells and potential compliance issues. Super Efficient Ltd helps prevent these problems with reliable cleaning and maintenance services.

Collapsed drains are usually caused by external pressure or long-term wear. Common factors include ground movement, tree root intrusion, ageing pipe materials and heavy loads above the pipe such as vehicles. We carry out a full inspection to identify the exact cause before recommending the most suitable repair.

Yes, in most cases a CCTV drain survey is essential. It allows us to accurately locate the problem and determine the most effective repair solution. This avoids unnecessary work and ensures the issue is resolved correctly the first time.

Cracked or damaged pipes often cause recurring blockages, damp patches, or unpleasant odours. Our CCTV surveys can confirm if drain relining will solve your persistent drainage problems without expensive excavation.

Not always, but if you are experiencing recurring or stubborn blockages, a CCTV survey is highly recommended, it allows us to find the root cause of the problem rather than just treating the symptoms.

The cost of collapsed drain repairs can vary depending on factors such as the extent of the damage, the repair method required and the location of the pipework. We carry out a detailed assessment and provide clear, transparent quotations so you understand exactly what is involved before any work begins.

Yes, many plumbers are also qualified to handle heating systems. They can repair, install, and maintain boilers, radiators, and other heating equipment. It’s always best to check if your plumber has the necessary certifications for heating services.

A well-maintained central heating system can last between 15 to 20 years. Regular servicing and prompt repairs are essential to maximising the longevity and efficiency of the system.

The duration of a leak detection service depends on various factors, such as the complexity of the plumbing system, the extent of the suspected leak and the accessibility of the affected areas. In general, our experienced leak detection specialists can efficiently locate the source of the leak within a few hours. However, complex cases or large-scale commercial projects may require more time.

Installing a central heating system is a complex task that requires specialised knowledge and skills. It involves working with gas, electricity, and water systems, which can be hazardous. Therefore, it is strongly recommended to hire a certified professional like Super Efficient Ltd to ensure the installation is done safely and correctly.

A CCTV drain survey typically takes around 1 to 2 hours, depending on the complexity of the drainage system and the extent of the survey required.

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The lifespan of underfloor heating systems can vary depending on factors such as the quality of installation, type of system, and maintenance. On average, well-installed systems can last 25 to 50 years or more. Proper maintenance and regular servicing can help extend the lifespan of the system.

Gas safety certificates must be renewed annually. The certificate is valid for 12 months from the date of issue. Landlords should ensure that a new inspection is carried out and a renewed certificate is obtained before the previous one expires to maintain compliance with legal requirements.

Yes, as Gas Safe Registered engineers we can repair, service or install any make or model of gas boiler in London.

To unclog a drain, you can follow these steps:

• Use a plunger to create suction and dislodge the blockage.
• Use a plumber’s snake (auger) to physically remove the blockage.
• Pour boiling water down the drain to dissolve grease or soap scum.
• Use a mixture of baking soda and vinegar followed by hot water to break down organic matter.
• If these methods fail, contact a professional plumber for assistance.

A boiler generates heat by burning fuel (usually gas) within a single property, whereas a HIU connects to a centralised heating network, distributing heat to multiple properties. Boilers operate independently, while HIUs rely on a communal system for heat.

A gas safety certificate, also known as a CP12 certificate, is an official document issued by a Gas Safe registered engineer after conducting a thorough inspection of gas appliances and pipework in a property. It confirms that the gas installations comply with safety regulations and are deemed safe for use.

Yes, unvented hot water cylinders should be serviced annually. Regular servicing by a qualified engineer ensures the system’s efficiency, safety, and longevity, and helps to identify and rectify any potential issues early.

If a leak is detected, we will provide a detailed report outlining the location, extent and potential causes of the leak. Based on our assessment, we will recommend the most effective and economical solution to address the issue. This may involve repair or replacement of the affected pipes or fixtures, depending on the severity of the leak and the condition of the plumbing system.

Plumbing is the system of pipes, fittings, and fixtures installed in a building for the distribution of potable water and the removal of wastewater. It involves the installation, maintenance, and repair of pipes and systems that supply water and gas, as well as those that remove waste. Plumbing ensures clean water for drinking, cooking, and bathing, and safe disposal of waste, contributing to the health and hygiene of a household.

The time it takes for underfloor heating to warm up a room can vary depending on factors such as the flooring type, insulation and the size of the room. Generally, underfloor heating systems take longer to reach the desired temperature compared to radiators or forced-air systems.

Yes, we tackle everything from minor tap repairs to complete plumbing system installations. No job is too small or too complex for our experienced team.

The installation of a central heating system usually takes between 2 to 5 days, depending on the size of your property and the complexity of the installation. This includes fitting the boiler, radiators, pipework, and connecting all components. A detailed assessment by a professional installer can provide a more accurate timeline.

Underfloor heating is generally considered more efficient than radiators. Radiators heat the air around them, which can lead to temperature variations and heat loss. Underfloor heating, on the other hand, radiates heat evenly from the floor upwards, providing more uniform warmth and potentially reducing heating costs.

Most businesses that prepare or serve food are required to have a grease management system in place. This includes restaurants, cafes and takeaways. If you are unsure, we can assess your setup and advise on the most suitable solution.

While some leaks may be visible or noticeable, many leaks occur in concealed areas such as underground pipes or within walls. We utilise specialised equipment and techniques to detect hidden leaks accurately. Our expertise and advanced technology enable us to identify leaks that might otherwise go unnoticed.

The installation of an unvented cylinder usually takes between 4 to 8 hours. This timeframe can vary depending on the complexity of the installation and any modifications required to your existing plumbing system.

During a gas safety inspection, a Gas Safe registered engineer will examine all gas appliances, pipework and flues in the property. They will check for any potential gas leaks, assess the proper functioning of appliances and ensure correct ventilation. The engineer will record their findings, and if everything meets safety standards, a gas safety certificate will be issued.

Common causes include tree root intrusion, pipe damage, improper waste disposal, and build-up of fat or debris. Our thorough inspection identifies the exact cause of persistent issues so we can apply the right solution.

If your boiler stops working, first check the basics: ensure the thermostat is set correctly, the boiler is receiving power, and the pressure is within the recommended range. If these checks don’t resolve the issue, turn off the boiler for safety and contact a professional repair service immediately. Do not attempt to fix the boiler yourself, as this can be dangerous.

Yes, we’re pleased to offer our customers fixed price boiler repairs on select makes and models.

The cost to install an unvented cylinder depends on the unit’s size, the complexity of the installation, and any additional necessary components or modifications to your existing system.

Servicing your boiler can be conducted at any time during the year but we strongly recommend you have this valuable service done during the summer months to ensure your boiler is in peak condition for when you need it the most. If you do not have it serviced in the summer, it may not work when you turn it on in autumn or winter! It’s best to avoid the winter rush and service your boiler in summer.

Failure to obtain a gas safety certificate can have serious consequences for landlords. It is a legal requirement and non-compliance can result in significant penalties, fines or even imprisonment. Moreover, without a valid certificate, landlords may face difficulties in obtaining insurance coverage and may be held liable for any accidents or harm caused by unsafe gas installations.

A boiler should be serviced annually to ensure it is operating efficiently and safely. Regular maintenance can help prevent unexpected breakdowns, extend the lifespan of the boiler, and ensure compliance with any warranty requirements.

The cost to install underfloor heating varies depending on factors such as the size of the area, type of system (electric or water-based), and complexity of installation. Water-based systems are generally more expensive due to the need for a boiler and pipework. It’s best to get a quote from a professional installer like Super Efficient Ltd for an accurate estimate.

Yes, we provide expert boiler servicing throughout London and surrounding areas with flexible appointment times to suit your schedule.

To prevent blocked drains, follow these tips:

• Avoid pouring grease or oil down drains.
• Use drain guards to catch hair and debris.
• Regularly flush drains with hot water.
• Avoid flushing non-flushable items down toilets.
• Schedule regular professional drain maintenance.

Yes. If left untreated, a collapsed drain can lead to serious issues such as water leaks, soil movement and even structural damage to your property. That is why Super Efficient Ltd recommends addressing any suspected drainage problems as soon as possible to prevent further complications.

Most boilers can be repaired no matter how old they are, however, boilers with the greatest chance of repair are usually under 12 years old due to the availability of parts from the manufacturers and suppliers.

Before installing an unvented hot water cylinder, it is crucial to ensure adequate water pressure and flow rate. Additionally, appropriate safety measures such as pressure relief valves, expansion vessels, and proper venting must be in place to handle the system’s requirements.

Regular maintenance is the key to preventing unexpected issues. Our boiler health check identifies potential problems early, saving you from emergency repair costs and ensuring reliable performance year-round.

Absolutely! An energy-saving boiler tune-up during spring or summer ensures your system runs efficiently when you need it most. It’s also easier to schedule appointments during our less busy periods.

No. CCTV surveys are non-invasive and do not require digging or damage to your property. Our team uses existing access points to carry out the inspection with minimal disruption.

There are a number of reasons as to why this may be happening, the most common are water leaks or a faulty pressure release valve. Either way, we can help and a boiler service picks up all these possible faults before they become too serious.

The cost of a HIU system can vary depending on the size and complexity of the installation. This includes the unit itself, installation, and any necessary ancillary work.