Confidential laboratory testing in Central London
Urine Drug and Alcohol Test in London
This urine test screens for alcohol and six commonly requested drug groups.
Negative results usually arrive by email within two working days.
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Panel
Alcohol and six drug groups
Negative results
Usually two working days
Location
76 Wimpole Street, London
Is This the Correct Drug and Alcohol Test?
Choose the panel matching the requesting organisation's requirements.
| Requirement |
Recommended test |
Coverage |
| Alcohol and common drug screening |
This combined test |
Alcohol and six drug groups |
| Broader combined screening |
13-Substance Test |
Alcohol and twelve drug groups |
| Formal documented collection |
Chain-of-Custody Test |
Documented collection and handling |
| Drug screening without alcohol |
Urine Drug Test |
Seven drug groups |
What Does This Test Screen For?
The laboratory applies these screening cut-offs.
| Substance |
Cut-off |
Examples |
| Alcohol |
100 mg/dL |
Alcohol |
| Amphetamines |
1,000 ng/mL |
Amphetamine, methamphetamine, MDMA and ephedrine |
| Benzodiazepines |
100 ng/mL |
Diazepam, nitrazepam, lorazepam and alprazolam |
| Cannabinoids |
50 ng/mL |
Cannabis and marijuana |
| Cocaine |
300 ng/mL |
Cocaine |
| Methadone |
300 ng/mL |
Methadone |
| Opiates |
300 ng/mL |
Morphine, codeine and dihydrocodeine |
A result below a cut-off does not prove complete absence.
How the Test Works
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Order online. Choose one test for each person.
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Enter client details. Provide the full name and date of birth.
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Wait for confirmation. Do not attend before our email and text.
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Attend in Central London. Bring original photo identification.
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Receive results by email. Reports are reviewed before release.
Orders are processed Monday–Friday, from 9am–5pm. Pay online before attending.
Detection Window
Detection varies with usage, metabolism, hydration and collection timing.
Alcohol
Commonly detectable for around 12–24 hours.
Drug groups
Often detectable for around 1–4 days.
Read the detailed detection-time guide
Results and Confirmation Testing
Results are reviewed and delivered securely by email.
Negative screen
Usually reported within two working days after collection.
Initial positive screen
Confirmation testing may add five working days.
Times may vary. Results cannot be issued by telephone.
Central London Testing Location
Address
The Doctors Laboratory
76 Wimpole Street
London W1G 9RT
Get directions
Walk-in times after confirmation
Monday–Friday: 7am–7pm
Saturday: 7am–1pm
Sunday: 8am–11am
Why Choose Drug Test London?
Established service
Private drug testing streamlined since 2015.
Accredited laboratory
Samples are processed by UKAS-accredited The Doctors Laboratory.
Doctor-reviewed results
Reports are reviewed before secure release.
Confidential handling
Results reach the authorised recipient.
Urine Drug and Alcohol Test Questions
Do I need an appointment?
No. Order online and wait for attendance confirmation.
Can I attend on Sunday?
Yes. Sunday walk-in testing runs from 8am–11am after confirmation.
Does this include chain-of-custody collection?
No. Choose the formal test when documented collection is required.
Can this test show how much someone used?
No. Screening shows whether markers exceed defined cut-offs.
What identification must I bring?
Bring an original passport or driving licence.
What follows an initial positive result?
The laboratory performs confirmation testing. Reporting may take five additional working days.
Book Your Drug and Alcohol Test
Order online, await confirmation, then attend in Central London.
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