Professional Mould Treatment and Mould Cleaning Services
*We service both Residential and Commercial properties.*
Trusted By Business Across the UK












Customer Reviews
EXCELLENT Based on 25 reviews Chris Binks2024-09-20Trustindex verifies that the original source of the review is Google. I had contacted these chaps following a query that came up on our buyers survey. The service was outstanding and they attended the property on the same day, identified the issue and provided me with a report within a couple of days, which helped us to nip the matter in the bud and proceed with our sale. I can't stress highly enough how good the service was, it really was exemplary. A realist2024-09-13Trustindex verifies that the original source of the review is Google. Amazing service from start to end. Customer service was great, polite and professional followed by the nicest guys who came to do the work today. I would give them 10 stars if I could, they were quick efficient and so friendly. Also did a fantastic job. Look no further for your mould damp/issues choose Treat Mould!!! Lucia Garcia2024-09-04Trustindex verifies that the original source of the review is Google. Oliver and his team were super communicative and I managed to book their services for the next day! I had quite a nasty case of mould in my kitchen cabinets and they came in the next morning and sorted it within the hour. The guys were super friendly and efficient and I highly recommend their team! Frazer Haswell2024-08-25Trustindex verifies that the original source of the review is Google. I recently had Karim and Aaron come round for a mould and damp inspection. They were very professional and checked inside my property and the outside perimeter. They carried out tests and detailed to me where my issue was. Luckily it was a quick fix, but I was very happy with the service. Thanks Ellie Brazil2024-08-20Trustindex verifies that the original source of the review is Google. Really happy with the services of today! We had an awful amount of mould which has been completely removed and looks brand new. Thank you so much. Letizia Tufari2024-08-07Trustindex verifies that the original source of the review is Google. Excellent service. Could not be happier. Very professional. Instead of just fixing the problem they were very thorough in getting to the root cause as well. Would highly recommend them Niral S2024-07-20Trustindex verifies that the original source of the review is Google. Excellent service from start to finish. Easy to book, gave a quick quote after I sent pictures and clear communication on what they would do and when they would be able to come. They arrived on time, did some thorough tests and investigations and then cleaned everything very well. Gave great advice to avoid issues again in future and were always happy to answer my questions. Would definitely recommend. Felix Meyer2024-07-03Trustindex verifies that the original source of the review is Google. Same day service, friendly, efficient and knowledgeable! Oliver and Aaron were fantastic, thank you!! Ian Wardle2024-06-18Trustindex verifies that the original source of the review is Google. Oliver was very informative and helpful when making the enquiry to Treat Mould; the team arrived on time and completed the job in the timescales advised; the standard of finish was excellent and would highly recommend Treat Mould. amanuel mekonnen2024-06-12Trustindex verifies that the original source of the review is Google. I highly recommend! Oliver and Aaron were professional and knew exactly they were doing. Also, the communication with the company itself was spot on.
Your Path to a Mould-Free Home Starts Here
Living with mould isn’t just unpleasant it’s unhealthy. Left untreated, mould can damage walls, trigger respiratory issues, and continue to spread silently. At Treat Mould, we don’t just cover up the problem we tackle it at its core. With years of hands-on experience in treating mould, our expert process is designed to eliminate the issue completely and prevent it from coming back.
Here’s how we restore comfort, cleanliness, and air quality in just three trusted steps:

Detection
Every successful job starts with a detailed inspection. Our team carefully assesses the affected areas, identifying the type of mould present and tracing its underlying cause. Whether it’s trapped humidity, a leak, or poor ventilation we find the source. Understanding what’s fuelling the growth is key to effective mould treatment. You can’t fix what you haven’t found.

Elimination
Next, we get to work. Using industry-leading equipment and mould-safe biocides, we treat mould on walls, ceilings, and other surfaces. Our technicians are trained in cleaning mould off walls and cleaning black mould without spreading harmful spores. From start to finish, your property is handled with care our service includes full mould cleaning, sanitisation, and post-treatment guidance. We know exactly how to clean mould off walls so it stays gone.

Prevention
Once the mould is gone, it’s time to keep it that way. We advise on moisture control and may recommend ventilation upgrades such as PIV units or extractor fans to keep air moving and humidity down. Prevention is part of the package, so you don’t find yourself cleaning off mould again and again. Our aim is a clean mould-free space that stays that way permanently.
What is Mould?
Mould is a type of fungus made up of tiny airborne spores that thrive in damp, poorly ventilated environments. You’ll often find it growing on walls, ceilings, window frames, and even furniture especially in areas where moisture levels are high. It appears in various colours, with black mould (Stachybotrys chartarum) being one of the most common and concerning types found indoors.
While mould plays a role in nature by breaking down organic matter, inside your home it can be both destructive and dangerous. Apart from causing unsightly stains and damage to walls, mould exposure can trigger respiratory issues, allergic reactions, and worsen asthma symptoms particularly in vulnerable individuals like children or the elderly.
If you notice musty odours or dark patches on your walls, it’s time to act. Understanding how to treat mould properly is essential not just to remove what’s visible, but to stop it from coming back. That’s exactly what we specialise in at Treat Mould.


How We Clean and Treat Mould
At Treat Mould, we don’t believe in shortcuts. Mould is stubborn, dangerous, and often hidden beneath the surface. That’s why our method combines expert investigation with specialist treatment to ensure complete and lasting results.
We begin every job with a detailed inspection to identify where the mould is, how far it has spread, and most importantly what’s causing it. Whether it’s condensation, a leak, or poor ventilation, we address the root issue before any mould cleaning begins.
Our team is trained in the safe handling of all types of indoor mould, including black mould. Using industry-approved biocidal treatments, we carefully clean mould off walls without spreading spores through the air. For more severe cases, we use containment methods to isolate the affected areas, especially when cleaning black mould where health risks are higher.
Once the visible growth is removed, we go deeper treating mould on walls thoroughly to stop regrowth. This step is essential. Many clients come to us after repeatedly cleaning off mould, only to have it return because the underlying problem was never dealt with. We don’t just clean mould we kill the spores and treat the surfaces properly.
From start to finish, every part of the process is handled with care. We leave your property cleaner, safer, and healthier and give you the guidance you need to stop mould from coming back.
If you’ve been wondering how to treat mould on walls the right way, this is it. Let us handle it professionally, so you don’t have to keep doing it over and over again.
Why Protect your Property for Mould?
Protect your Health
Mould exposure, especially from black mould, can lead to respiratory problems, skin irritation, and allergic reactions. If you’ve ever wondered how to clean black mould safely, the truth is improper handling can make things worse. That’s why professional help is key when it comes to cleaning black mould from your home.
Protect your Property
Mould doesn’t just sit on the surface. It penetrates walls, plaster, and wood, slowly weakening the structure of your property. Early treating of mould on walls helps prevent costly repairs down the line. We don’t just clean mould off walls we identify and eliminate the source to ensure lasting results.
Clean Environment
Wiping away mould without addressing the root cause is a temporary fix. Many people try cleaning mould off walls, only to see it return weeks later. Our service goes deeper treating mould properly and offering long-term solutions to prevent moisture build-up and future growth.
Identify Hidden Issues
A mould-free home is more appealing, healthier, and safer. Whether you’re selling, renting, or simply trying to enjoy your space, keeping it clean matters. Our comprehensive approach to mould cleaning ensures you’re not just cleaning off mould, but restoring the comfort and integrity of your home.

Step-by-Step of How to Treat Mould
Site Inspection & Moisture Detection
We begin with a detailed visual inspection to locate all affected areas. Moisture levels are tested to determine what’s feeding the mould. Whether you’re dealing with surface growth or hidden patches, identifying the root issue is key before we treat mould on walls.
Identify the Cause of the Mould
We don’t just guess we investigate. From poor ventilation and condensation to rising damp or leaks, we determine exactly why mould is growing. Proper diagnosis ensures that when we begin treating mould, we do it right the first time.
Isolate & Prepare the Area
Before any mould cleaning starts, we isolate the area to prevent spores from spreading to other parts of your home. This includes setting up protective sheeting, sealing vents, and putting health and safety precautions in place.
Professional Mould Treatment
Now we get to work. Using industry-approved solutions and methods, we treat mould effectively removing both surface growth and microscopic spores. For tougher infestations, such as cleaning black mould, we use stronger biocidal products designed for safe but deep disinfection.
Deep Cleaning & Spore Removal
Once treated, we thoroughly clean mould off walls, windows, ceilings, and other affected surfaces. Our team carries out professional cleaning mould off walls to ensure all residue is removed and air quality is restored. Every step is done with care to prevent reinfestation and exposure.
Prevention Advice & Aftercare Support
After the job is complete, we give expert guidance on preventing future mould growth. This may include ventilation improvements, lifestyle adjustments, or damp-proofing recommendations. Knowing how to treat mould is only half the solution keeping it away is just as important.

Hidden Impact of Mould on Your Health, Home and Future
- Health Risks
- Damage to Your Home
- Live Stress Free
- Securing Your Future
Mould is more than a surface problem it’s a health risk that can silently affect everyone in your home. When left untreated, mould spores become airborne and circulate through your living space, contaminating the air you breathe. This is particularly dangerous when cleaning black mould without the correct protection or experience, as disturbed spores can spread quickly and deeply into the respiratory system.
Repeated exposure to mould is known to trigger a wide range of health issues, from persistent coughing and sneezing to sinus infections, skin irritation, headaches, and worsening asthma. In more severe cases, especially when dealing with black mould, it can lead to chronic respiratory conditions, fatigue, and allergic reactions. If you’ve tried to clean black mould on your own and noticed the problem keeps returning or your symptoms worsen it’s time for professional support.
At Treat Mould, we take your health seriously. We understand how to clean black mould safely, using sealed environments, protective equipment, and medical-grade treatments that not only remove mould but contain and neutralise airborne spores. We also provide solutions that stop it from coming back, so you’re not stuck cleaning off mould again and again.
Your lungs, skin, and immune system shouldn’t have to fight what’s growing silently on your walls. Let us restore your air quality and peace of mind by professionally treating mould on walls and protecting your home from the health impact you can’t always see.
Mould doesn’t just grow on the surface it penetrates deep into the structure of your home. What might look like a small patch of discolouration is often just the tip of the problem. Beneath the paint or wallpaper, mould feeds on plaster, wood, and other porous materials, quietly weakening your walls and ceilings from the inside out.
Many people try to fix the issue themselves by cleaning mould off walls, but surface cleaning rarely solves it. In fact, improper methods can trap moisture behind the wall or disturb spores that cause mould to spread faster. Without the correct approach to treat mould on walls, the damage continues unseen and unstoppable until it becomes a much more costly structural issue.
Our specialists at Treat Mould are trained to spot hidden signs of decay. We go beyond simple mould cleaning by fully assessing the extent of the damage and applying professional-grade treatments that stop it at the root. Whether it’s plaster crumbling behind the paint or timbers beginning to rot, we know how to treat mould in a way that protects your property from long-term harm.
Don’t wait until cracks appear or walls need rebuilding. A proactive approach to treating mould on walls today could save you thousands in repairs tomorrow. Let us preserve the integrity of your home properly, safely, and permanently.
Living with mould is stressful plain and simple. It affects your comfort, your confidence in your space, and even your daily routine. You might find yourself constantly opening windows, hiding damp patches, or buying endless sprays, only to keep cleaning mould off walls week after week. The truth is, no matter how many times you scrub, without treating the cause, the mould will always return.
Many of our clients come to us exhausted and frustrated. They’ve tried to clean mould off walls, repainted, and even redecorated only to see the same stains reappear. The time, energy, and money spent on cleaning off mould without permanent results takes a mental toll.
At Treat Mould, we relieve that stress by offering a complete, start-to-finish solution. Our approach doesn’t just focus on treating mould on walls, but also on identifying what’s causing it whether that’s poor ventilation, hidden leaks, or excess humidity. Once the source is fixed and the mould professionally removed, the cycle ends.
You deserve to live in a home you can relax in, not one you’re constantly battling against. Let us take away the guesswork and the burden, with expert-level mould cleaning that gets the job done right the first time.
Mould may start small, but if ignored, its long-term impact can be significant. It can lower your property’s value, put off potential buyers or tenants, and create an unhealthy environment for years to come. The longer mould remains untreated, the more difficult and expensive it becomes to fix. That’s why it’s so important to act early and act correctly.
Quick DIY fixes, like repainting or basic scrubbing, often lead to false hope. Many homeowners think they’ve solved the issue after cleaning mould off walls, only for it to return within weeks. Without fully understanding how to treat mould on walls, you’re not just risking re-growth you’re risking your home’s future.
At Treat Mould, we don’t just offer a surface clean. We carry out detailed inspections, apply safe and effective solutions, and give expert guidance on preventing reoccurrence. Our goal is long-term peace of mind not short-term cover-ups.
So whether you’re planning to sell, protect your rental property, or simply want a healthier place to live, let us help you do it properly. We know how to treat mould, we understand what’s behind it, and we make sure your home stays protected not just for today, but for years to come.
Why Us?
Specialized Expertise in Mould and Damp Solutions
Many companies offer a wipe-down service. We don’t. We go beyond surface fixes to fully treat mould on walls and tackle what’s causing it whether that’s moisture, leaks, or ventilation problems.
Specialised in All Types of Mould
From minor outbreaks to severe black mould infestations, we’ve seen and solved it all. Our team is trained in safe, effective cleaning black mould processes that protect your health and your property.
Health-Focused Approach
Your wellbeing comes first. We understand the medical risks of mould exposure, which is why our method for cleaning mould off walls is designed to reduce airborne spores and improve indoor air quality.
Fully Trained and Certified Technicians
All our operatives are trained in the latest mould remediation techniques. We know exactly how to treat mould, and more importantly, how to do it safely, thoroughly, and with minimal disruption.
Honest Assessments – No Scare Tactics
We believe in transparency. If a minor case only needs simple mould cleaning, we’ll tell you. If it needs urgent intervention, we’ll explain why and give you options without pressure.
Long-Term Prevention, Not Just Removal
Our service doesn’t end with cleaning off mould. We give tailored advice to help you stop the issue from returning because prevention is just as important as removal.
Responsive, Reliable, and Local
As a London-based company, we’re nearby when you need us most. Whether you’re calling about treating mould on walls or need urgent help to clean mould off walls, we respond quickly and professionally.
Customer Satisfaction Guarantee
We’ve helped hundreds of homeowners and landlords reclaim their properties. From deep mould cleaning to ventilation upgrades, our clients regularly thank us for honest work, real results, and lasting peace of mind.
Customized Mould Treatment Plans for Every Property
No two mould problems are the same and that’s exactly why we don’t offer one-size-fits-all solutions. At Treat Mould, we take the time to assess your specific needs and create a tailored treatment plan that suits your property, the severity of the issue, and your location.
Whether you’re dealing with light surface growth or widespread mould on walls, our team will inspect the affected areas and recommend the right level of mould cleaning and treatment. From small flats to large homes or commercial properties, we adjust our approach to ensure effective, long-lasting results.
While we’re proudly based in London, we’re not limited to it. We regularly travel to surrounding areas including Essex, Kent, Hertfordshire, and Surrey to help clients who need expert support. If you’re just outside the city, chances are we can help.
Our pricing reflects the scale and complexity of each job. We’re transparent, fair, and flexible so whether you need a single black mould cleaning visit or a full property-wide treat mould on walls package, you’ll get honest recommendations and a clear quote.
Looking for more than mould treatment? We also offer bundled packages that combine services such as ventilation upgrades, PIV unit installation, and damp-proofing designed to prevent mould from returning and keep your home permanently protected.
Reach out today for a tailored quote and expert advice on treating mould in your home or business wherever you are in or around Greater London.

Trust the Process - Before and After Results
















FAQ
Here you’ll find the most addressed questions, so you can find your answers faster.
To clean mould off walls, you should wear protective gear and use mould-specific cleaning agents, not just household bleach. However, if mould returns or covers a large area, it’s best to call in professionals who specialise in cleaning mould off walls safely and effectively.
Cleaning black mould requires extreme caution due to the health risks associated with airborne spores. If you want to clean black mould properly, professional-grade treatments, sealed work zones, and expert handling are essential.
To properly treat mould on walls, you need more than just surface cleaning. It involves removing visible growth, eliminating spores, and addressing the underlying cause usually damp, condensation, or poor airflow. We carry out full mould cleaning alongside source identification to prevent it from returning.
Our team follows a professional process: inspection, isolation, full cleaning mould off walls, biocidal treatment, and long-term prevention advice. We don’t just mask the problem we fully treat mould on walls for lasting results.
Knowing how to treat mould means understanding that scrubbing it off isn’t enough. You need proper products, protective methods, and moisture control. At Treat Mould, we combine all of these into a complete and reliable service.
Mould is usually caused by excess moisture from leaks, condensation, or poor ventilation. Before we start treating mould, we investigate the source and recommend lasting solutions to avoid future outbreaks.
You can attempt cleaning mould in small areas, but DIY removal often misses the spores and fails to treat the root cause. This leads to repeated issues. Professional mould cleaning ensures the job is done safely and thoroughly.
Yes, black mould can cause serious respiratory issues, allergic reactions, and worsen asthma especially in children or vulnerable individuals. Our team knows how to clean black mould without spreading harmful spores.
If you’re repeatedly cleaning off mould, it’s likely the root cause (like humidity or damp) hasn’t been addressed. That’s why we combine cleaning black mould or cleaning mould off walls with proper treatment and prevention strategies.
Yes. While we’re based in London, we also travel to nearby towns in areas like Essex, Kent, Surrey, and Hertfordshire. Whether you need to treat mould on walls or want full mould cleaning, we can help even outside the capital.
Still Have Questions?
Do not hesitate in contacting Treat Mould as your best mould removal in London, UK!