Cardiology Clinic — Heart Rhythm Testing

Private ECG
Electrocardiogram

A quick, painless 12-lead test that records your heart’s electrical activity, helping detect arrhythmias, conduction problems, and signs of cardiac strain with same-day specialist reporting.

Ideal for chest symptoms, palpitations, dizziness, cardiovascular screening, and rapid cardiac assessment without needing a GP referral.

Painless 5-minute test Same-day results No GP referral

ECG overview

£119
ECG appointments from
Book Online
Test Type 12-Lead ECG
Duration Around 5–10 minutes
Reporting Consultant interpreted
Results Same day
Referral Not required
Test
12-Lead ECG
From
£119
Duration
5–10 Minutes
Report
Same-Day Specialist Review
Referral
No GP Referral
About the ECG

Your heart’s electrical story, captured in minutes

An electrocardiogram (ECG) is a fast, painless, non-invasive test that records the electrical activity of your heart using small electrode stickers placed on your chest, arms, and legs.

The result is an ECG trace that helps our Consultant Cardiologists assess heart rhythm, heart rate, electrical conduction, and signs of underlying cardiac stress or abnormality.

  • Fast and painless test
  • Useful for symptoms and cardiac screening
  • Consultant Cardiologist interpretation
  • Written report provided the same day
Private ECG London
What It Can Detect

What an ECG can identify

An ECG can provide rapid information about electrical activity in the heart and may detect a wide range of rhythm, conduction, and strain-related abnormalities.

Atrial fibrillation and other arrhythmias
Supraventricular and ventricular tachycardias
Heart block and conduction abnormalities
Evidence of previous heart attack
Left ventricular hypertrophy
ST changes suggesting myocardial ischaemia
Wolff-Parkinson-White syndrome
Long QT syndrome and other channelopathies
Right heart strain
Electrolyte-related ECG changes
What to Expect

The procedure, step by step

1

Electrode placement

Small adhesive electrodes are placed on your chest, wrists, and ankles. No needles and no discomfort.

2

Recording

You remain still briefly while the machine records 12 views of your heart’s electrical activity.

3

Consultant reporting

Your ECG is interpreted by a Consultant Cardiologist and a same-day written report is issued.

ECG vs Echocardiogram

Understanding the difference

ECG and echocardiography are complementary tests. They examine different aspects of heart health and are often used together for a more complete assessment.

ECG (Electrocardiogram)
Echo (Echocardiogram)
Records electrical activity of the heart
Uses ultrasound to image heart structure
Detects rhythm and conduction problems
Assesses chambers, valves, and muscle function
Takes 5–10 minutes
Takes 20–30 minutes
From £119
From £279

Many patients benefit from both tests. Together they provide a more complete picture of electrical activity and structural heart health.

Combining Your ECG

Get more with our Heart Health packages

An ECG is included in our Heart Health Check-Up packages alongside echocardiography, cardiologist review, and GP consultation. This offers a more complete cardiac screening pathway for patients who want broader reassurance or deeper evaluation.

You can also book a standalone ECG and later add an echocardiogram or cardiologist consultation if needed.

Book Your Appointment

Choose your ECG appointment

Use the live booking calendar below to choose a convenient appointment time for your private ECG.

Live booking calendar

Select your preferred date and time directly online.

Book Today

Book your ECG today

Fast, painless, consultant-reported, and available without a GP referral.

Frequently Asked Questions

What is Electrocardiography (ECG), and why is it performed?

Welcome to our Electrocardiography (ECG) service at London Sono. Electrocardiograms play a crucial role in assessing heart health and detecting cardiac abnormalities. Below are frequently asked questions to guide you through the process of scheduling an ECG at our clinic.

Are there any risks associated with an ECG?
ECGs are considered safe and non-invasive. There are no known risks associated with the procedure, making it a valuable tool for assessing heart health.
How long does an ECG take? Is it a painful procedure?
An ECG is a quick and painless procedure. It usually takes around 5 to 10 minutes to complete. Electrodes will be attached to specific areas on your chest, arms, and legs to record the heart’s electrical activity.
Can I get an ECG if I have a pacemaker or other implanted devices?

Yes, in most cases, having a pacemaker or other implanted devices does not preclude you from getting an ECG. However, it is important to inform the healthcare provider performing the test about any implanted devices for appropriate precautions.

What should I wear for the ECG?

Wear comfortable clothing that allows easy access to the chest area. You may be provided with a gown to wear during the procedure.

Can I eat or drink before the ECG?

Yes, you can eat and drink normally before an ECG. There are no specific fasting requirements for this test.

When will I get the results?
You will get the results verbally after the scan, followed by a digital copy of the report with relevant images within 24 hrs.
Do I need a referral?

No, you don’t need a referral.

How can I have a better picture of my health?

Combining your ultrasound scan with one of our screening tests will give you a better picture of your health. We will recommend any beneficial screenings when you book online and will also recommend any further tests or screenings after your ultrasound scan.

How do I book a private heart scan?

Instantly online – using the form above
or call us on 020 7101 3377
No referral needed. We offer same day appointments.

Would I need a blood test?

Depending on the findings, we may recommend a blood test to better correlate the scan results. For your convenience we can perform a blood test during your visit.

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Why Choose London Private Ultrasound?

Excellence in Ultrasound Care

No GP referral required
Same-day appointments & results
Open 7 days a week
Scans performed by specialists registered with GMC & HCPC
Latest ultrasound technology
Welcoming, friendly environment
Registered with CQC and ICO
Highest rated clinic in London.
Over 1000 Google reviews, ★★★★★
📍 Convenient Central London location: 27 Welbeck Street, W1G 8EN

About Our ECG Test

An electrocardiogram is a quick, pain-free test that records the electrical activity of your heart. It’s a valuable tool for detecting irregular heart rhythms, poor blood flow, or other potential cardiac concerns at an early stage. At London Private Ultrasound our consultant cardiologists provide thorough ECG testing with same-day or emergency out-of-hours appointments - no GP referral required.

The test takes just 10 minutes, and you’ll receive:

A detailed ECG report with clear, jargon-free explanations.

Personalised guidance on your results and next steps.

The option to combine your ECG with blood tests for a more comprehensive health assessment (discussed during your consultation).

Why You Might Need an ECG

An ECG is a simple, non-invasive test which records the heart’s electrical activity using electrodes placed on the skin. Immediate results are available after the test.

  • Detect arrhythmias (short- or slow-rhythms)

  • Evaluate symptoms (including heart palpitations)

  • Measure effects of ongoing conditions (e.g. hypertension, coronary artery disease)

  • Monitor pacemakers

  • Assess risk of medications that affect heart rhythm

What Happens During the Test

This non-invasive test is easy, comfortable, and quick. Small electrodes are attached to your chest and legs. The test lasts only 10 minutes. To ensure accurate readings, avoid lotions or oils before the test.

When to Get an ECG

Consider an ECG if you experience persistent or recurring chest pain, palpitations, shortness of breath, or dizziness. A detailed report is provided within minutes of your test.

ECG Test Prices

A private electrocardiogram is priced at £119.
This includes the ECG procedure, interpretation, and a detailed report.

Book Your Private ECG in London

Call or make an appointment online with London Private Ultrasound.
Same-day bookings are available for your convenience.

Why Choose Our Clinic?

✓ Expert cardiologist-led care in Central London (just a 5-minute walk from Bond Street Tube Station).
✓ Fast access—priority and emergency appointments available.
✓ Transparent, patient-focused results with actionable advice.
✓ Additional cardiac services, including our Cholesterol Health Packages (from £200) for a complete heart health review.

You do not need a referral to book our clinic and we welcome any calls or emails - where our clinicians can provide you with further details and answer any questions you may have. 

For more detailed assessment you may also be interested in our Cholesterol Health Packages with a range of options from £200 to assess and guide you on your Cholesterol score and appropriate actions to take.

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