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Blood Tests > HbA1c Blood Test

HbA1c Blood Test

Price
£95

Turnaround

12 hours

Appointment

15 minutes

4.9

Rated 4.9 out of 5

4.7

Rated 4.7 out of 5

at a glance

Price: £95

Turnaround: 12 hours

Appointment: 15 minutes

4.9

Rated 4.9 out of 5

4.7

Rated 4.7 out of 5

Key Diabetes Diagnostic Test

The HbA1c blood test (also known as the A1C test) plays a vital role in diabetes management. It provides a comprehensive assessment and valuable insights into your average blood sugar levels over a specific period, and is a vital tool in monitoring and managing diabetes.

Our clinics in London provides the HbA1C test as a standalone test or as part of our comprehensive Platinum Blood Profile.

The Significance Of Testing

An HbA1c blood test measures the percentage of glycated haemoglobin in the blood. Haemoglobin is a protein in red blood cells responsible for carrying oxygen throughout the body. When blood sugar levels are high, glucose molecules attach to the haemoglobin, forming glycated haemoglobin.

Unlike regular blood sugar tests, which only provide a snapshot of glucose levels at a specific moment, the HbA1c test offers a more comprehensive picture. It determines the proportion of glycated haemoglobin, which is directly related to average blood sugar levels over a timeframe of two to three months. This long-term view allows your doctor to identify trends and evaluate the effectiveness of treatment plans.

Why Getting Tested Often Makes A Difference

When left untreated, diabetes can seriously impact your health. That’s why monitoring your blood glucose levels is so important.

For individuals with diabetes or a family history of the condition, regular HbA1c tests are essential for effective management and, in some cases, prevention. The results of these tests help you and your healthcare provider make informed decisions, adjusting medication dosages, tailoring treatment plans, and making lifestyle changes.

Regular monitoring of your HbA1c levels helps maintain stable blood sugar, reducing the risk of complications such as nerve damage, kidney disease, and eye problems. It also helps you feel better day to day, with more energy and fewer diabetes-related symptoms.

If you want to check your diabetes status or need regular monitoring for your condition, call or book online with us today.

When Testing Is Most Important

We recommend the HbA1c test if you:

Have already been diagnosed with type 1 or type 2 diabetes and need regular monitoring
Are experiencing symptoms like fatigue, increased thirst, blurred vision, or frequent urination
Have polycystic ovary syndrome (PCOS), gestational diabetes history, or metabolic syndrome
Have risk factors such as obesity, sedentary lifestyle, high blood pressure, or a family history of diabetes

Diabetes-Associated Conditions

Properly managing diabetes through medication, lifestyle changes, and regular check-ups reduces your risk of associated conditions. However, if left untreated (or poorly managed) complications may arise, including:

Cardiovascular Disease: Diabetes increases the risk of heart disease, including coronary artery disease, heart attack, and stroke.
Nerve Damage (Neuropathy): High blood sugar levels can damage nerves throughout the body, leading to symptoms such as tingling, numbness, pain, or loss of sensation, typically starting in the feet and hands.
Kidney Disease (Nephropathy): Diabetes can damage the kidneys over time, leading to kidney failure or the need for dialysis.
Eye Damage (Retinopathy): Diabetes can damage the blood vessels in the retina, leading to diabetic retinopathy, which can cause vision problems and even blindness if untreated.
Foot Damage: Nerve damage and poor circulation associated with diabetes can lead to foot problems, including infections, ulcers, and in severe cases, amputation.

Skin Conditions: Diabetes increases the risk of skin problems, including bacterial and fungal infections, itching, and diabetic dermopathy.
Gum Disease: Diabetes increases the risk of gum infections (periodontitis), which can lead to tooth loss if not treated.
Mental Health Disorders: People with diabetes are at higher risk for depression, anxiety, and other mental health issues, which can affect diabetes management and overall well-being.
Digestive Disorders: Diabetes can affect the nerves and blood vessels that control digestion, leading to problems such as gastroparesis (delayed stomach emptying) and constipation.
Sleep Apnea: Diabetes increases the risk of obstructive sleep apnea, a condition in which breathing repeatedly stops and starts during sleep.

Statistics

people live with diabetes in the UK

0 Mill

UK residents may have undiagnosed Type 2 diabetes

0 Mill

Completed Blood Test This Year

Blood Tests For Each Person Are Performed Annually

Easy Guide To Booking Your Blood Test

book online or call us

Use our online booking engine or book your test by giving us a call.

Choose your test type

On the online booking engine select the “appointment type” you need.

meet with our experts

You will be seen by one of our friendly phlebotomists or trained clinicians.

Procedure

Type of sample taken: Blood

Why Choose Walk In Clinic
for blood testing

No
Hidden Charges

Transparent fees. The price you see is the price you pay.

No GP consultation
needed

No GP appointment requirement for blood tests

Established
since 1998

Experienced doctors & a professional team.

Strictly
confidential

Your medical records are kept private at all times.

testimonials

Jooyoung Nam

10 September 2026

I had a very positive experience at this clinic for my blood test and the follow-up with the GP. I particularly appreciated the care and attention throughout the process, including the follow-up after my results. Thank you to the team for making the experience so reassuring. I would happily recommend this clinic.

Lucy Cropper

31 August 2026

I had a fantastic experience at the Harley Street clinic. Staff were very welcoming and professional and booked my second blood test here also.

Truman Packard

19 August 2026

The service was efficient, personable and very complete. The doctor who saw me was very good, patient and sensitive. I’ll be going back.

Sue Heald

11 August 2026

As an international visitor, I was very grateful for the prompt attention to my request for an appointment. Dr Ali was respectful and empathetic in regard to my condition and suggested further treatment, which I was able to organise for the next day. Both offices I attended treated me appropriately and I would recommend Harley Street Health Walk-in Clinics to anyone visiting London who requires medical attention.

Isabella Johnson

3 August 2026

Highly recommend City Walk-In Clinic Really pleased with my experience at City Walk-In Clinic. I booked a female hormone test because I wanted some answers about a few symptoms I'd been having, and the whole process was straightforward. The staff were welcoming, friendly and didn't make me feel rushed at all. The blood test was quick, and they explained everything clearly before taking the sample. My results came back sooner than I expected, and it was reassuring to have everything presented in a way that was easy to understand. I'd definitely use the clinic again and would recommend it to anyone looking for a private female hormone test. Professional service, lovely staff and an all round positive experience.

Anabella Styles

9 July 2026

I had a private gp appointment yesterday as my feet have been swelling every day over the past few days. So I booked an appointment with Dr Heather. Dr Heather explained the possible causes of the swelling, including the heat that we are currently experiencing in London. Recommended further investigation if the swelling persists, to identify the underlying issue rather than just making assumptions.

Mary Anne

3 July 2026

I have used City Walk In Clinic as my go to place for routine blood tests. My recent full health check gave my doctor some clues that i may be approaching my menopause era. So my doctor has recommended that i do some tests to find out if indeed i am entering perimenopause, as the symptoms are there. Will be having my tests in the next few weeks. So glad i had a full health check, because all these symptoms were driving me crazy.

Dona P

24 June 2026

Really good service throughout. Reception staff were welcoming and the blood test was efficient and quick. Highly recommended as blood tests can be booked on the day with results being sent very quickly.

A B

23 June 2026

Great location for blood tests if you want very fast results! I got my results the same day, highly recommend!

Grace Vizcaino

2 June 2026

Very good service at a very reasonable cost. Same day results, I do recommend this clinic and would certainly be using it again.

Shona McGovern

16 May 2026

I attended The Harley Street Walk/in centre in the City recently. I was able to book my appointment the day before for a blood test at a time that suited me. The booking process was straightforward. The doctor that conducted the venous draw was efficient and very pleasant. I have never had such a painless venous draw and I have had many! My appointment was at 5pm and I had my results before 8 am the following day. I will be very happy to book my tests here in the future. Thank you.

Monju Zaman

19 April 2026

Very easy to arrange the appointment with plenty of immediate availability. Very convenient location. Friendly medical associate who took my blood and results arrived very promptly, ie early the next day. Seamless experience.

Nat N

17 April 2026

Attentive, welcoming and professional staff in a great area which is easy to get to! I always feel like I'm in good hands

Abdalla Mohamud Mohamed

18 March 2026

I had a very good experience at the clinic. The staff were punctual friendly and professional. I had a blood test done and received the results quickly on the same day. I would definitely recommend visiting them.

Ena Quinn

9 March 2026

Speedy and efficient place for quick bloods. Results have been same day for me. Very friendly staff too which is always a bonus

Arthur Attwell

22 January 2026

Great experience. I was visiting London from abroad and I needed a blood test before travelling onward. I arrived without an appointment and was done in 20 minutes. The staff were all lovely. I received my test results by email the next morning.

Omar

19 January 2026

Really professional and friendly. They always provide their results quickly!

Antigoni S.

17 January 2026

Very good experience — all the staff were very polite, I was assisted immediately, and the results were available the same day. Thank you very much Private City Clinic!

Sheila Daley

31 December 2025

I wanted a cholesterol check up and chose this clinic because it seemed to offer a competitive price for a detailed report. And so it turned out to be. Received a prompt and professional service at a price that was significantly less than other nearby providers in central London. I have now used it twice and would definitely recommend.

JenniferP-344

18 February 2025

I appreciated the discreet and professional care during my sexual health test. The clinic made me feel safe and respected, and the results were delivered quickly and privately. Definitely recommend if you value confidentiality.

MichelleD-11

21 February 2024

I can't express enough how pleased I am with the Private Walk-in Clinic. As someone who values privacy and comfort, this clinic hits all the marks. The waiting areas are designed for relaxation, and the staff ensures confidentiality at every step.

Anonymously

4 December 2023

The Walk-In Clinic in central London exceeded my expectations in every way. Their attention to detail and commitment to tailored care for their patients truly sets them apart. The availability of evening appointments until 6:30 pm was a game-changer for someone like me juggling multiple commitments.

LunaW23

14 May 2021

They are so fast. One call and I am there in a few hours, always the same team and so polite and nice.

JuliaSf

14 October 2020

I hope these guys open up again soon because I really cannot stand anyone else around here. they were perfect for me for tests and consultations whenever I needed them

Emily-M

2 August 2019

i have used these guys many times in the last 6 years and its always very fast and professional. most tests are done in 24hours and they call you to explain the results. recommended if you gp (like mine) gives you an appointment in 4 weeks time.

Blood Test Biomarkers

HbA1C

pricing

HbA1C Blood Test

£95

1 Biomarker

see other blood tests

Comprehensive Blood Profile

£79

Platinum Blood Profile

£229

Book Your Blood Test Today

We offer a wide range of private blood tests in London. Same-day appointments are available 5 days a week.

Specialist Medical Team

We work with experienced consultants & healthcare professionals who have received positive feedback from our patients, and with whom we have established long-term relationships.

Amin Ali

Medical Associate

Dr Heather Craig

General practitioner (GP)

Dr Kate Soffer

General practitioner (GP)

Dr Mohammad Mohseyni

Senior General practitioner

Dr Oluwaseyi Kayode

Medical Associate

Juhina Chameseddin

Medical Associate

Our Clinics

City Of London

Harley Street

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How often should I get an HbA1c test?

For those without diabetes, testing is usually recommended only if at risk or during health screenings. For prediabetics, we recommend getting tested about once or twice a year, depending on risk factors. For people with diabetes, every 3 to 6 months, depending on how well blood sugar is controlled.

Is an HbA1c blood test suitable for you?

While it won’t indicate your current blood sugar levels, it can reveal if your levels have been consistently high over the past 3 months. However, certain conditions can affect HbA1c levels, making it unsuitable for diagnosing diabetes in some cases. This includes pregnancy, recent childbirth, recent onset of diabetes symptoms, certain medications, acute illness, pancreatic issues, end-stage kidney disease, and HIV positivity.

Is it possible to have a normal HbA1c but still have diabetes symptoms?

Yes, it is possible, especially in the early stages of diabetes or in people with fluctuating blood sugar levels. An individual may have normal HbA1c levels but experience symptoms like excessive thirst, frequent urination, or fatigue. This can happen in conditions like reactive hypoglycaemia or if blood glucose spikes and drops dramatically.

What does it mean if my HbA1c is lower than expected?

An unusually low HbA1c might seem like good news at first glance, but it could also indicate underlying issues such as frequent hypoglycaemia (low blood sugar), anaemia, certain blood disorders, or a shortened red blood cell lifespan, such as that caused by haemolysis. It is important to interpret a low HbA1c result in context, particularly for individuals taking insulin or other glucose-lowering medications.

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