How long does rehab take? It’s one of the biggest questions people have when looking at treatment. There isn’t a fixed answer because rehab is planned around each person’s needs.
The length of a programme depends on the substance involved, whether detox is needed, your physical and mental health, and the progress you make during treatment. Some people complete rehab within a few weeks, while others stay for longer.
This guide explains the different programme lengths, what affects them, and what happens during rehab.
How Long Does Rehab Take?
Most residential rehab programmes last 28 days, but this is not the right length for everyone. Some people need a shorter stay, while others benefit from spending more time in treatment. The decision is usually made after a professional assessment.
The table below shows the typical length of different rehabilitation programmes.
| Programme | Typical Length |
| Medical detox | 5 to 10 days* |
| 7-day programme | Assessment, stabilisation, or continuing care |
| 14-day programme | Short-term treatment for selected cases |
| 28-day programme | Standard residential rehab programme |
| 60-day programme | Extra time for therapy and recovery planning |
| 90-day programme | Often suitable for long-term or more complex addiction |
Types of Rehab Programmes
Rehabilitation providers offer different types of programmes depending on the level of support a person needs. The right programme depends on your assessment, the substance involved, and your treatment goals.
Here are the common types of rehab programmes:
7-Day Programme
A 7-day programme is usually designed for assessment, medical detox, or stabilisation rather than complete addiction treatment. It may be suitable for people who need medical support during withdrawal or who are preparing to continue treatment elsewhere.
Depending on the rehabilitation provider, a 7-day programme may include:
- Medical assessment
- Medically supervised detox, where appropriate
- Basic health monitoring
- Individual support sessions
- Discharge and continuing care planning
14-Day Programme
A 14-day programme provides more time than a short detox programme but is still considered a brief stay. It combines medical care, where needed, with the early stages of therapy and recovery planning.
Treatment often includes one-to-one counselling, group therapy, educational sessions, and relapse prevention. Some people choose a 14-day programme because of work or family commitments, although a longer stay may be recommended if more support is needed.
28-Day Programme
A 28-day programme is one of the most common residential rehab options in the UK. It gives people time to complete detox if needed, take part in therapy, and develop practical skills for life after treatment.
A typical programme may include:
- Medical detox, where appropriate
- Individual counselling
- Group therapy
- Cognitive behavioural therapy (CBT)
- Family support, where appropriate
- Relapse prevention planning
- Aftercare planning
60-Day Programme
A 60-day programme gives people more time to work on the emotional and behavioural side of addiction. This extra time allows therapy to continue after detox has finished and provides more opportunities to build healthy routines before leaving rehab.
This option may be suitable for people with long-term addiction, repeated relapses, or co-occurring mental health conditions.
90-Day Programme
A 90-day programme offers the highest level of structured residential support. It is often recommended for people with more complex treatment needs or those who need extra time to build confidence before returning home.
Longer programmes allow more time for therapy, relapse prevention, family work, and planning for recovery after treatment. Clinical guidance also suggests that longer residential programmes may benefit people with more complex needs, although the right length should always be based on an individual assessment.
Outpatient Treatment
Outpatient treatment allows people to attend therapy and support sessions while continuing to live at home. Some programmes involve several appointments each week, while others are less intensive and focus on ongoing recovery support.
This option may be suitable for people with a stable home environment, lower levels of dependence, or those moving on from residential rehab.
Sober Living Homes
Sober living homes, also called recovery housing, provide drug-free or alcohol-free accommodation for people who have completed rehab or need extra support before living independently. They are not rehabilitation centres, but they provide a structured environment where residents support one another in recovery.
Residents are usually expected to remain substance-free, follow house rules, attend recovery meetings or treatment sessions, and contribute to day-to-day responsibilities. The length of stay varies between providers and depends on individual circumstances.
What Affects the Length of Rehab?
Rehab does not follow the same timetable for everyone. Several factors help determine how long treatment is likely to take.
The Type of Addiction
The substance involved is one of the biggest factors. Alcohol, opioids, and benzodiazepines often require a medically supervised detox before therapy begins. Cocaine and ketamine treatment usually focuses more on psychological support because physical withdrawal is generally less severe.
How Long the Addiction Has Been Present
Someone who has been living with addiction for several years may need more time than someone who has recently developed a problem. Long-term addiction can be harder to break and may take longer to treat.
Physical and Mental Health
Your overall health is also considered before treatment begins. Conditions such as anxiety, depression, trauma, or long-term physical illness may need to be treated alongside addiction, which can affect the length of the programme.
Previous Treatment
If you’ve been to rehab before, your treatment team will look at what worked well and what challenges you faced after leaving. This can help decide whether a longer programme would be more appropriate.
Your Recovery Goals
Some people only need support with detox and early recovery, while others want more time to work on relapse prevention, coping skills, and rebuilding daily routines. Your treatment plan should reflect your individual goals.
How Long Does Alcohol Rehab Take?
Alcohol rehab often starts with a medically supervised detox. This usually lasts 5 to 10 days, although the exact length depends on the severity of alcohol dependence and your overall health.
After detox, treatment focuses on therapy, education, and relapse prevention. A 28-day programme is common, but 60-day and 90-day programmes are also available for people who need more time in treatment.
Support often continues after residential rehab. This may include counselling, peer support groups, or aftercare sessions to help maintain recovery.
How Long Does Drug Rehab Take?
Drug rehab follows a similar structure, but the programme depends on the substance involved and your individual needs. Some drugs require medical detox, while others mainly need psychological treatment and ongoing support.
Treatment for cocaine or ketamine addiction usually focuses on therapy, relapse prevention, and behavioural support. People recovering from opioid or prescription drug addiction may also need a medically supervised detox before therapy begins.
A 28-day programme is the most common option, but longer programmes may be recommended if the addiction is more severe or if there are other physical or mental health concerns.
Can Rehab Be Extended?
Yes. A rehab programme can be extended if more time is needed. This decision is usually made after reviewing your progress with the treatment team.
Some people extend their stay because they are still working through therapy, need more support to manage cravings, or are not ready to return home. Others may have mental health conditions or personal circumstances that require extra time in treatment.
Extending rehab is not a setback. The goal is to leave treatment when you feel better prepared for life outside the rehabilitation centre.
Does a Longer Rehab Programme Work Better?
A longer programme gives you more time for therapy, education, and relapse prevention. It also allows more time to build healthy routines before returning to everyday life.
This does not mean that everyone needs a 60-day or 90-day programme. For some people, a 28-day programme provides the right level of support. Others may benefit from staying longer, depending on their assessment and progress during treatment.
The best programme is the one that matches your individual needs, not simply the longest one available.
Choosing the Right Rehab Programme
A professional assessment can help identify the programme that best matches your needs. This includes looking at the substance involved, whether detox is required, your physical and mental health, and the support you may need after treatment.
Taking time to choose the right programme can give you a stronger foundation for recovery. If you’re unsure where to start, speaking with an addiction professional can help you understand the options available.
How AnorMed Can Help
Choosing a rehab programme can feel overwhelming when there are so many options available. AnorMed is an independent addiction treatment referral service that helps people compare rehabilitation providers across the UK and Europe.
Our advisors take the time to understand your situation before discussing suitable treatment options. This may include medical detox, residential rehab, outpatient treatment, or other forms of addiction support based on your individual needs.
We also support family members who are looking for help for someone close to them. If you have questions about rehab programmes or treatment, our advisors can explain the available options and provide confidential guidance.
If you’re looking for rehab for yourself or a loved one, AnorMed can help you compare rehabilitation providers and understand the next steps.
FAQs
Is 28 days enough for rehab?
A 28-day programme is the most common length of residential rehab and can be effective for many people. The right length depends on your addiction, overall health, and the progress you make during treatment.
Does everyone need a medical detox?
No. A medical detox is only needed if physical dependence has developed. It is more common for alcohol, opioids, and benzodiazepines than for drugs such as cocaine or ketamine.
Can I leave rehab before my programme ends?
Yes. Most private rehabilitation programmes are voluntary, so you can choose to leave. However, leaving early may reduce the time available for therapy and relapse prevention.
Does private rehab last longer than NHS treatment?
Programme lengths vary between providers. Both private and NHS-funded services decide treatment length based on a clinical assessment and your individual circumstances.
How is the length of rehab decided?
The treatment team looks at several factors, including the substance involved, whether detox is needed, your physical and mental health, previous treatment, and your progress during rehabilitation.