- Excellent Customer Service
- Established & Accredited
- Fully Insured & Public Liability
- Highly Rated - 5 Star Reviews
- 24/7 Emergency Call Out
Black Mould Specialists You Can Rely On - Ex10 Black Mould Service
Don’t let black mould damage your property—or your wellbeing. Our fully qualified black mould specialists deliver rapid, expert mould remediation services for domestic and commercial properties. We find the source, treat it safely, and stop it from coming back.
- Full Diagnosis & Report - target the underlying causes
- Safe, Non-Toxic Treatments - protect your family & tenants
- Mould-Free Guarantee - long-term solutions
What Is Black Mould—and Why Should You Be Concerned?
Black mould (Stachybotrys chartarum) is a toxic fungus that thrives in damp, poorly ventilated spaces. It doesn’t just look unpleasant—it poses serious health risks. Once it takes hold, it releases microscopic spores into the air that can trigger respiratory problems, allergic reactions, fatigue, and worsen existing conditions like asthma attacks.
If left untreated, black mould can also weaken walls, damage insulation, and reduce the value of your home or rental property. That’s why tackling the root causes is just as important as removing the mould itself.
Signs You Need a Black Mould Removal Specialist
Black mould isn’t always obvious at first—but the signs can quickly add up. What starts as a musty smell or a few dark spots on the wall can become a serious health hazard if ignored. Many people try DIY fixes, only to find the mould comes back—or their symptoms get worse.
If you’re noticing any of the following, it’s time to call in a certified black mould specialist:
- Musty, damp smells that linger, especially in bathrooms or basements
- Dark patches or black spots on walls, ceilings, or behind furniture
- Coughing, sneezing, or nasal congestion that improves when you leave the property
- Worsening asthma or allergies, particularly in children or the elderly
- Stains or mould patches that keep returning, even after cleaning
- Visible signs of moisture like condensation, leaks, or peeling paint
Book a Black Mould Assessment Today
Schedule a detailed inspection with our black mould experts. We identify hidden infestations, assess indoor air quality, and provide a clear action plan—fast, confidential, and obligation-free.
Why Choose Us for Professional Mould Cleaning Services?
At EX10, we know black mould isn’t just unpleasant — it’s a serious risk to your health and safety of your home. That’s why we’ve built our service around what matters most to you:
Our team holds industry-recognised certifications in mould remediation and environmental health. We specialise in toxic black mould (Stachybotrys) and know how to handle it safely, effectively, and permanently.
With hundreds of 5-star reviews, clients consistently praise our professionalism, honesty, and results. We’re proud to be a go-to name for families and property managers who want peace of mind.
We explain everything — what’s causing the mould, what we’ll do, and what it will cost. No pressure, no obligation quote. Just the truth and a clear plan of action.
We don’t just wipe mould away — we eradicate mould at the root. Whether it’s excess moisture, poor ventilation, or hidden leaks, we’ll diagnose it and fix it. Our work includes preventative measures to prevent mould returning.
We treat your home like our own. From using non-toxic treatments where possible to leaving everything spotless, our technicians work cleanly, discreetly, and with care. No mess, no stress.
We’ve helped hundreds of homeowners protect their basements — and it shows in our 5-star reviews and real-world success stories. Our team is trusted, experienced, and deliver a professional service, with the before-and-after photos to prove it.
Our Step-by-Step Black Mould Removal Process
At EX10, we make your black mould removal process simple, safe, and stress-free. Here’s how we handle every job, from start to finish:
We inspect the affected area to identify the mould type, spread, and root cause — like leaks, humidity, or poor ventilation.
We isolate the area with professional containment and follow strict safety protocols to stop mould from spreading.
HEPA filtration clears airborne mould spores while we deep-clean surrounding surfaces to protect your indoor air quality.
We remove mould and treat surfaces with specialist solutions to kill spores and prevent regrowth.
We dry the area thoroughly and fix any mould issues to prevent future mould growth.
Prevention Strategies You Can Do After Black Mould Removal
Removing black mould is a critical first step — but keeping it from coming back is just as important. At EX10, we help you protect your home long-term with simple, practical strategies tailored to your space and lifestyle. Here are some effective ways to keep black mould away for good:
Use dehumidifiers in damp-prone areas like bathrooms, kitchens, and basements to keep humidity below 60%.
Open windows regularly and install extractor fans where needed to reduce condensation and stale air.
Address any plumbing, roof, or wall leaks immediately — even small drips can lead to mould over time.
Proper insulation helps prevent cold spots and condensation, especially in lofts and external walls.
Periodically check for early signs of dampness or mould, especially after storms or heavy rain.
Emergency Black Mould Services for Urgent Situations
Sudden leak? Flood damage? Strong odour with visible black spores? Our rapid-response mould team is on call for urgent remediation. We contain the spread, treat surfaces affects, and minimise disruption.
Who We Help with Our Mould Removal Services
Whether you’re a homeowner, landlord, or managing multiple properties — mould is never something you should ignore. At EX10, we provide tailored black mould solutions that work for every type of space, with the professionalism and care you deserve. Here’s who we proudly support:
We help protect your family’s health and your property’s value with safe, effective mould treatment and prevention.
If you’re concerned about mould in your rental, we can work with you (and your landlord) to find a solution quickly and discreetly.
Stay compliant and protect your tenants with fast response times, detailed reporting, and trusted aftercare services.
We offer scalable mould remediation programs that ensure safety, compliance, and long-term prevention across your housing stock.
From small business units to large office spaces, we minimise disruption while restoring a clean, safe working environment.
Customer Reviews
‘Efficient and timely response from EX10 to repair a collapsed drain.
Highly rated.’
J Mark Brown
Areas We Cover
We proudly serve Dorset, Hampshire, and Wiltshire and surrounding areas. From urban flats to countryside cottages, our black mould specialists are ready to help. Unsure if you’re in our service zone? Contact us—we’ll confirm and assist promptly.
Got more questions? Contact us.
Don’t wait for the next heavy rain. Connect with Ex10 Waterproofing today to discuss your basement concerns. Our specialists are ready to listen, inspect, and recommend. Whether it’s a minor leak or full-scale protection, we’re here to protect your space from the ground up.
Frequently Asked Questions (FAQs)
Can I remove black mould myself?
Small patches might be manageable, but black mould can be toxic and spread quickly. DIY removal can disturb spores, worsening the problem. A certified black mould specialist has the training, equipment, and safety protocols to remove it effectively and prevent it from returning.
How long does black mould removal take?
It depends on the size and severity of the infestation. Most jobs take 1 to 3 days, though larger or more complex cases may require longer. We’ll give you a clear timeline after the initial inspection.
Will the mould come back after removal?
Not if the underlying moisture issue is resolved. We don’t just remove the mould—we identify and help fix the root cause (e.g., leaks, poor ventilation) to ensure the problem doesn’t return.
How much does professional black mould removal cost?
Costs vary based on the extent of the mould and the areas affected. As a guide, prices can range from £250 for minor cases to £1,000+ for extensive remediation. We offer free quotes with no obligation.
Do you offer a guarantee on your mould removal service?
Absolutely. We offer a mould-free guarantee for all treated areas, provided recommended moisture control measures are followed. Full details are included in your service report.
Can you help with mould in rental properties or HMOs?
Yes, we regularly work with landlords, letting agents, and tenants. We provide detailed reports that meet legal and housing standards, and can assist with compliance under HHSRS, Housing Act requirements, and environmental health expectations.
