Mould Removal Cost
- The average cost of dealing with mould is around £700
- The job will take approximately 1 - 5 days to complete
- A clear price breakdown for how much professional mould removal costs, depending on the type of mould and extent of the problem.
- How long mould remediation usually takes.
- Landlord and tenant responsibilities for treating mould in rented properties.
- How to find and hire a mould removal specialist near you using MyJobQuote.
Looking for a professional mould removal service in the UK?
Mould can spread quickly, damage your property and put your health at risk. While small patches can sometimes be cleaned yourself, larger or recurring problems usually need expert treatment.
Professional mould removal ensures the issue is identified at the source and treated safely, preventing costly repairs and recurring issues later on.
If you're ready for a quote, we have a range of local mould removal specialists ready to offer you a free quote with no obligation to go ahead.
If you need more information about mould remediation services, read our guide below to find out when to hire a specialist, what the process involves, and the factors that affect mould removal costs in the UK.

£700
Table of Contents
- How Much Does Mould Removal Cost?
- Labour Costs and Timescales
- What a Professional Mould Removal Service Usually Includes
- Factors Affecting Mould Removal Costs
- What's Involved in Mould Removal?
- Why DIY Mould Removal Can Cost You More
- Is My Landlord Responsible for the Cost of Mould Removal?
- Types of Mould
- Hiring a Mould Removal Specialist Checklist
- FAQs
How Much Does Mould Removal Cost?
The average cost of removing mould from a single, large room is £220 to £280 for minor treatment.
For a problem that's more extensive, mould removal from an entire property would likely set you back between £725 and £1,100.
What is your biggest concern about mould removal?
The cost of removing mould depends on the nature of the damaged area, type of mould, room type, number of rooms, ease of access, and your property's location.
Some of the most common scenarios include:
- Small isolated patches 1 to 2 square metres - Typically from condensation on windows or bathroom tiles. Often the lowest cost jobs.
- One affected room - For example, black mould on a bedroom wall due to poor ventilation. Mid range cost.
- Whole property contamination - Extensive mould caused by flooding, leaks or long term damp. This is the most expensive and can involve structural repairs.
While mould DIY sprays offer a quick fix, they rarely solve the underlying moisture problem. That's why professional removal is usually the most cost-effective option in the long term, preventing repeat outbreaks and protecting the fabric of the building.
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Mould Treatment Prices
| Job Description | Typical Costs |
|---|---|
| Removing Mould From a Single Wall | £150–£200 |
| Removing Mould From a Large Room | £220–£280 |
| Removing Mould From a Roof or Attic | £300–£650 |
| Removing Mould From an Entire Property | £725–£1,100 |
Roof and Attic Mould Removal Cost
Mould in a roof space or attic is often treated as a separate job from standard room treatment, and it tends to cost more. Difficult access, confined working conditions, and the need to treat exposed timber such as rafters and joists all add to the time and complexity involved.
Roof and attic mould removal typically costs between £300 and £650, depending on the size of the space, the severity of the mould, and how easy it is for the contractor to access the area.
In many cases, the mould is caused by poor ventilation or a roofing defect allowing moisture in. A specialist will usually assess the source before treatment, as fixing the underlying issue is essential to prevent the mould returning.
Labour Costs and Timescales
Labour is a significant part of professional mould removal costs.
The price depends on the size of the affected area, complexity of the job and the type of mould being removed.
To remove mould from a large room is likely to come with a labour cost of £200 to £250. As for removing mould from an entire house, this is likely to have a labour cost of about £700 to £1,000.
Preparation can take under an hour, while the mould removal itself requires somewhere between an hour and eight hours if working in a large room.
One to five days is not uncommon for an entire house.
When comparing mould removal quotes, ask professionals to outline labour time estimates and additional charges.
How Much Does a Professional Mould Inspection Cost?
In some cases, a mould specialist may recommend an inspection before treatment begins, especially if the source of moisture is unclear or further mould may be hidden behind walls, flooring or insulation.
A professional mould inspection usually costs between £150 and £300, depending on the size of the property and whether moisture readings or a more detailed survey are needed.
If treatment goes ahead, some contractors deduct the inspection cost from the final mould removal quote.
What a Professional Mould Removal Service Usually Includes
The scope of a professional mould removal service can vary between contractors, but most will cover the following as standard:
- Initial inspection and moisture assessment — The contractor identifies the source of moisture and the full extent of the mould, including any hidden growth.
- Containment setup — For larger or more serious infestations, sheeting and negative air pressure may be used to prevent spores from spreading to unaffected areas of the property.
- Mould removal and surface treatment — Using industry-grade fungicidal solutions, the contractor removes mould from all affected surfaces and applies treatments to kill remaining spores.
- HEPA vacuuming and clean-up — Once the mould has been treated, affected areas are vacuumed using HEPA-filter equipment and wiped down to remove residual spores.
- Safe disposal of contaminated materials — Any materials that cannot be cleaned, such as badly affected plasterboard or insulation, are safely removed and disposed of.
- Post-treatment advice — A reputable contractor will advise on ventilation improvements, moisture control, and preventative treatments to reduce the risk of mould returning.
Always ask contractors to confirm exactly what their service includes before agreeing to a quote.
Factors Affecting Mould Removal Costs
There are many factors that determine the cost of having mould removed. Let's take a closer look at some of them.
Mould Type
Some types of mould are more challenging and dangerous to remove than others. The extent of mould removal will determine the time, equipment and expertise needed.
The more challenging it is to fix the issue, the longer it will take and therefore, the higher the labour prices are likely to be.
Surface mould such as green, white or blue mould is typically easier and quicker to remove, costing around £180 to £280 for small to large room treatments.
Black or toxic mould (Stachybotrys), requires specialist handling and stronger chemicals. Treatment can cost £250 to £1,100 depending on severity.
Extent of Mould Removal
How far the mould has spread can affect the cost of removal. The early stages of mould are easier and quicker to deal with than mould that's become established.
Treating a single wall area is also much cheaper and easier than extensive mould that has spread from room to room, throughout an entire property.
Ease of Access
Mould hidden behind walls, under flooring, or inside ceilings increases labour time and therefore costs.
Hard to reach areas may add £50 to £200 to the job depending on complexity.
Extent of Property Damage
If mould has penetrated plaster, timber or insulation, remediation may involve replacing affected materials.
Minor repairs to plaster start at around £15 to £25 per m².
Structural repairs to timber, insulation requiring replacement can cost between £500 and £1,500 depending on the extent of damage and size of the area.
Repainting and Anti-Mould Treatments
After mould has been removed, walls or ceilings may need redecorating to restore their appearance and protect against future outbreaks.
Anti-mould paint usually costs around £20 to £50 per room for materials, while professional repainting averages around £250 to £400 for a small bedroom.
Safety and Containment Requirements
For larger mould problems or toxic mould removal, professionals use safety equipment, containment sheeting and air filtration to prevent spores from spreading.
Additional costs can include PPE and other protective equipment at a cost of £20 to £50 per room, as well as containment and air filtration which costs between £50 to £200 per job, and specialist disposal of contaminated materials which can add a further £50 to £150 per job.
Urgency and Location
Emergency treatments such as those after flooding can increase the cost between 10% and 30%.
When requesting a mould removal quote, ask contractors to break down costs so you can see exactly what you're paying for.
What's Involved in Mould Removal?
Professional mould removal follows a structured process to ensure the problem is fully resolved and unlikely to return.
1. Hiring a Contractor
Start by sourcing quotes from at least three qualified mould removal specialists.
This helps you find a professional who can safely handle the mould and offer the best value for the job.
2. Removing the Cause of Moisture
Mould is caused by moisture. Professionals first locate the source of dampness or condensation such as leaks, poor ventilation or rising damp and address it before treatment.
Treating the mould without fixing the underlying issue will only provide a short term solution.
3. Safe Mould Removal
Using industry standard equipment, contractors remove mould in a controlled manner.
They focus on preventing spores from spreading and ensuring surfaces are treated thoroughly.
A mould removal company may use specialist cleaning solutions and containment methods to protect both the property and occupants.
4. Post Removal Clean Up and Mould Prevention
After mould removal, the area is cleaned to remove residual spores.
This may include vacuuming with HEPA filters, wiping surfaces and safely disposing of contaminated materials. Combined with moisture control, this step helps prevent the mould from coming back.
I fear I might have mould or mildew in my bedroom under a bay window. I have washed the walls twice now but it seems to be returning. Will an a mould killer do the job? I have debated sanding it over and painting/skimming the area but dont want to if it's going to return. Is there a special paint I can buy to go over it?
Why DIY Mould Removal Can Cost You More
It may seem easy to tackle mould yourself using store bought sprays and household supplies, but DIY mould removal can often end up costing more in the long run.
- Repeat treatment costs — Surface cleaning with mould treatments may remove visible mould, but if the source of moisture is not addressed, the mould often returns and requires further treatment.
- Hidden damage — Mould can spread inside walls, under flooring or within insulation, where DIY cleaning will not reach. This can lead to more expensive repairs later.
- Health risks — Inhaling mould spores, especially from black or toxic mould, can cause respiratory issues and other health problems.
- Limited equipment — Professional mould removal companies use industrial-grade products, containment methods and safety equipment that are not usually available for home use.
- False economy — Repeat purchases of sprays and cleaning products often add up without solving the underlying issue.
While DIY mould removal may seem cheaper at first, professional mould treatment is often the safer and more cost-effective long-term solution.
Signs You Need to Call a Professional
Some mould problems go beyond what a household spray and a scrubbing brush can fix. You should call a professional mould removal specialist if:
- The mould covers an area larger than 1 square metre — At this size, containment and specialist treatment are usually needed to prevent spores from spreading.
- It keeps coming back after cleaning — Recurring mould is a strong sign that the underlying moisture source has not been addressed.
- There's a persistent musty smell — This can indicate hidden mould inside walls, under flooring, or in the ceiling void that isn't visible.
- You suspect black or toxic mould — Stachybotrys requires specialist equipment and handling and should never be tackled without professional help.
- Anyone in the property has respiratory issues or allergies — Mould spores can aggravate asthma and other conditions, making professional containment and removal especially important.
- The mould follows a leak, flood, or structural damp — In these cases, treatment needs to be paired with repairs, which a professional can help identify and coordinate.
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Is My Landlord Responsible for the Cost of Mould Removal?
If you're renting a property, it's important to know who is responsible for dealing with mould and covering the associated costs.
When Landlords Are Responsible
Landlords are generally responsible for ensuring the property is safe, habitable and free from damp and mould caused by structural issues.
This includes leaking roofs, windows or plumbing, rising damp or poorly maintained ventilation, or structural problems that allow moisture into the property.
In these cases, the landlord must arrange and pay for professional mould removal.
Failure to address the issue can breach housing regulations and put the tenants' health at risk.
When Tenants Are Responsible
Tenants are usually responsible for mould caused by lifestyle or maintenance issues.
These issues can include poor ventilation such as not opening windows or using extractor fans, high humidity from drying clothes indoors, or minor spills or leaks caused by the tenant.
For tenant caused mould, the tenant may be liable for the cost of removal.
Tenants should notify the landlord immediately if mould appears. Early reporting often reduces the cost of mould removal and helps avoid disputes.
Types of Mould
The most common types of mould found in UK homes are green, white, blue, and black mould. Green, white, and blue mould are generally surface-level and easier to treat — costs for these typically fall at the lower end of the ranges outlined above.
Black mould, particularly toxic black mould (Stachybotrys), is the most serious. It requires specialist handling, stronger treatments, and professional equipment, which is reflected in higher removal costs.
Hiring a Mould Removal Specialist Checklist
When looking into professional mould removal, there are a range of factors to take into account. Let's have a look at these considerations.
- Qualifications and experience — While formal qualifications are not always required, check the contractor's experience with the specific type of mould you have, such as black mould or surface mould.
- Previous work and references — Ask for before and after photos or references from previous clients to assess workmanship and reliability.
- Customer reviews and ratings — Online reviews and testimonials can highlight the quality of the work and professionalism. Look for patterns rather than single opinions.
- Accreditations and memberships — Check if the contractor is part of any trade bodies or has industry certifications which can indicate adherence to safety standards.
- Insurance and liability — Ensure the contractor has public liability and professional indemnity insurance in case of accidental damage or health issues.
- Clear written quote — Always request a detailed quote outlining labour, materials and additional costs.
- Timeline and process — Ask about the expected duration and steps of the job, including moisture remediation, mould removal and clean-up.
- Inspection and diagnosis — Ask whether the quote includes moisture checks or inspection to identify the source of the mould.
FAQs
Can Mould Be Completely Removed From a Home?
Professional treatment can significantly reduce mould and prevent it from returning, provided the source of moisture is also addressed. Total eradication is difficult without ongoing moisture control and adequate ventilation, but correct remediation can keep a home mould-free in the long term.
Is It Safe to Remove Black or Toxic Mould Yourself?
No. Black or toxic mould (Stachybotrys) can pose serious health risks. A professional is required to safely remove it using specialist equipment, containment methods, and appropriate disposal procedures.
Will I Need to Move Out During Mould Removal?
In most cases, you do not need to move out for mould removal, especially for small areas or single rooms. However, for extensive infestations — particularly those involving toxic black mould — professionals may recommend temporarily vacating affected areas to avoid exposure to spores and cleaning chemicals. A contractor will advise based on the severity of the problem when providing a quote.
Does Home Insurance Cover Mould Removal?
This depends on the cause of the mould. Insurance may cover removal if it results from a sudden event such as a burst pipe. It typically won't cover mould caused by long-term damp, poor ventilation, or general maintenance issues. Always check the terms of your policy and contact your insurer before arranging treatment.
What Is the Difference Between Mould Removal and Mould Remediation?
Mould removal refers to cleaning visible mould from surfaces. Mould remediation is a more comprehensive process that includes removing contamination, addressing the underlying cause of moisture, and taking steps to prevent the mould from returning. For recurring or extensive mould problems, remediation is usually the more effective long-term solution.
How Much Does Mould Removal Cost in an Attic or Roof Space?
Attic and roof space mould removal typically costs between £300 and £650, depending on the size of the area, how accessible it is, and the severity of the mould. Difficult access and the need to treat exposed timber such as rafters and joists generally make this a more expensive job than standard room treatment.


