Excellent service. Let down by the NHS. One Day Tests came to my rescue. Lucy at your Guildford branch was amazing. Her experience and professional manner was top notch. The test result came through f... See more
Company replied
Location
Switch location36-37 Castle Street, GU1 3UQ Guildford, England, GB
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See what reviewers are saying
As usual, the process from booking to result is very smooth and very fast. Something to note for any people like me who needs an analysis every 3 months, you can get a very good discount by ticking t... See more
Company replied
I recently had an appointment for a blood test, and I was a bit nervous going in. However,Magdalena made the whole experience so smooth and comfortable! She was incredibly friendly and calm, which hel... See more
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This is a reliable company that I have used several times for myself and family members. The blood test results come through quickly, usually within 24 hours. You can choose whatever aspects you parti... See more
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Company details
- #3 of 25 best companies in Blood testing service
Written by the company
Accessible and affordable private blood testing clinics, home kits and phlebotomy nurse visits. Huge range of biomarkers, monitoring panels and health screenings. Same or next day results on over 300 biomarkers!
Contact info
36-37 Castle Street, GU1 3UQ, Guildford, England, United Kingdom
4.9
Excellent
223 reviews
Asks customers to review
This company invites their customers to review, whether positive or negative
Replied to 98% of negative reviews
Typically replies within 1 week
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Very easy to book
Very easy to book. The staff on the day were great. I was in and out in less than 10 minutes. Has all my results back by the next morning.
10 August 2026
Reply from One Day Tests - Guildford
So pleased to hear we were able to help. Thank you for your review.
Highly recommend
The blood test results are comprehensive with a quick turnaround. The GP consultation is very good with honest and direct delivery. All in all, a fabulous offering and service.
14 August 2026
Reply from One Day Tests - Guildford
Great to hear your feedback on our service. Thank you for your review.
Excellent service
Excellent service. Let down by the NHS. One Day Tests came to my rescue. Lucy at your Guildford branch was amazing. Her experience and professional manner was top notch. The test result came through faster than expected in less than 24 hours! Depends on the test required, but the NHS need 2 weeks for the same! Easy to book and lots of tests to chose from. Will use again.
10 August 2026
Reply from One Day Tests - Guildford
Thank you for the 5 star review. We look forward to seeing you again in the future.
Reply from One Day Tests - Guildford
We really appreciate your review and the 5-star rating. Thank you.
Fast appointments and fast results…
Fast appointments and fast results would recommend to all my family and friends
30 July 2026
Reply from One Day Tests - Guildford
Thank you very much for your kind words and recommending our service. We really appreciate it.
Process very smooth as usual
As usual, the process from booking to result is very smooth and very fast. Something to note for any people like me who needs an analysis every 3 months, you can get a very good discount by ticking the recurring box.
One Day, it would be great to make this box more visible so the people do not miss it. And if you see the people have missed it anyway, it would be great that at the check out a pop up inform them that you noticed that they are buying same test every 3 months and encourage them to get this option. Simple, smooth and fast as all your wonderful service.
29 July 2026
Reply from One Day Tests - Guildford
Thank you for providing feedback on your experience using our service and rating us 5 stars. We really appreciate it.
Blood taken easily
Blood taken easily, results back quickly. Would recommend for anyone concerned for health.
28 July 2026
Reply from One Day Tests - Guildford
Thank you for the recommendation and the 5* review.
Parking isn't easy...
21 July 2026
Reply from One Day Tests - Guildford
Thank you for your review and for taking the time to share your feedback.
Please be aware that we will have listed on our clinic page on our website any parking arrangements. For our Guildford clinic, as mentioned on our website and in case you wish to return to us large car parks nearby: Castle car park (GU1 3RW), Millbrook car park (GU1 3UU).
The best decision I have ever made.
I was so impressed with how quickly I got my blood test appointment. Once my blood test was taken it took only few hours and I got all my results back.
It was all explained in a simple way
that made it easy to understand the results.
I have already recommended my family and friends to use this service .
I will definitely be using your services again in future.
20 July 2026
Reply from One Day Tests - Guildford
We look forward to seeing you again in the future. Thank you for leaving us a 5* review.
very good recommended
7 July 2026
Reply from One Day Tests - Guildford
Thank you for the recommendation and the 5* review.
Reply from One Day Tests - Guildford
Thank you for the 5* review.
Very nice lady took my blood
Very nice lady took my blood. Totally painless and a good experience. I’ll be using the same clinic next time for sure
1 July 2026
Reply from One Day Tests - Guildford
Thank you for your feedback. We look forward to seeing you again in the future.
Excellent and fast service!
Fantastic experience from start to finish. The booking process was incredibly easy, the staff were highly professional, and the blood test itself was quick and painless. I received my results exactly when expected. Highly recommend One Day Tests!
6 July 2026
Reply from One Day Tests - Guildford
We really appreciate your recommendation and the 5-star rating. Thank you.
Quick and easy
It's been very easy to book and I also needed to move to booking to another day without any fuss.
The blood test itself has been very quick and I had the results the day after.
The staff has been very kind.
19 June 2026
Reply from One Day Tests - Guildford
We are really pleased to hear this. Thank you for spending the time to leave your feedback.
Reply from One Day Tests - Guildford
Thank you for the 5* review. We really appreciate it.
I wouldn't recommend this place for…
I wouldn't recommend this place for blood tests. I paid for two tests and they were simple tests with no information. The biomarkers didn't show up and they resulted into a blank page.
You don't expect to pay over £100 for tests and come out with blank results
Waste of money!
19 June 2026
Unprompted review
Reply from One Day Tests - Guildford
Hi Ariana,
Thank you for taking the time to leave a review.
Apologies to hear this.
We have attempted to request further information on your order so we can look into this for you. If you would like to contact us directly on hello@onedaytests.com, we would be more than happy to assist you with this.
All of your results will be on the Health Dashboard, in the Lab File section. This is where you download and print off your results.
Next to your result, will be the reference range, so you will see where your result falls within/outside of the reference range.
We do not diagnose, as your results are in form of numbers for a GP to understand and to help towards health/medical investigations.
In the Biomarker section you will see your results in form of charts and graphs with simple generic explanations of what your results could mean. These have been put together by our GP team.
If we can be of any further assistance, please let us know.
We wish you all the best
One Day Tests
Had excellent service from start to…
Had excellent service from start to finish, seamless, friendly organised can't fault it. Lucy was wonderful, honestly anyone whose worried about any particular health concern go for this.
19 June 2026
Reply from One Day Tests - Guildford
We really appreciate your review and the 5-star rating. Thank you.
Lucy will be so pleased to hear your feedback.
The lovely lady taking my blood was so…
The lovely lady taking my blood was so helpful and informative. She didn’t rush me and I felt extremely comfortable. Results the next day which showed up so concerning readings which I’ve acted on immediately . Thank you
1 June 2026
Reply from One Day Tests - Guildford
Really happy to hear about your experience with us. Thank you for leaving a review.
From start to finish was easy and…
From start to finish was easy and results came through fast
29 May 2026
Reply from One Day Tests - Guildford
Great to hear. Thank you for leaving us a 5* review.
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