The 5 Best Mould Removal in London for Remediation and Eradication
Finding fuzzy black patches creeping up your walls is enough to stress out any homeowner or landlord. With stricter housing standards, such as Awaab’s Law that made headlines in 2026, addressing dampness properly has never been more urgent.
You can’t just spray a bit of bleach and hope for the best anymore. To protect your property and health, you need professional teams for proper mould inspection and to find the root cause of the moisture.
And that’s why we looked into the top choices for mould removal in London, which residents can depend on to completely clear out toxic infestations and safely clean up their indoor air.
How much does mould removal cost in London?
Professional mould removal rates in London typically range from £150 to £3,000+, depending on the scale of the dampness, from minor patch treatments to extensive structural work.
| Service Type | Average Cost Range (GBP) |
| Initial Damp and Mould Surveys | £150 to £300 |
| Small or Isolated Patches | £150 to £280 |
| Average Treatment for a Single Room | £220 to £280 |
| Single Room Labor Costs | £200 to £250 |
| Extensive Whole-Property Remediation | £725 to £1,100 |
| Severe Structural Cases | £2,000 to £3,000+ |
1. Environ Property Services Ltd
Website: https://environpropertyservices.co.uk/
Address: Unit 12, Parson Green Depot, 33-39 Parsons Green Ln
Contact: 020 4572 3495
Hours: Monday-Friday 8:00 AM-10:00 PM, Saturday 9:00 AM-5:00 PM, Sunday 9:00 AM-9:00 PM
Environ Property Services stands out for their ability to handle both airflow and structural problems.
In particular, they manage indoor moisture and prevent structural deterioration by combining ventilation improvements with targeted damp-proofing measures.
Plus, they do a brilliant job of installing physical barriers and external waterproofing membranes to completely stop penetrating dampness.
We chatted with a landlord who used them last winter, and she also loved how they explained the structural fixes without using confusing builder jargon.
But a minor catch is that they rely exclusively on Vent Axia units for their positive input ventilation systems. This setup might be frustrating if you prefer a choice of different ventilation brands for your home.
Customer Reviews
Effective service
Environ Property Services performed an impeccable mould clean in my living space. The mould was not only unsightly but also affecting our health. After their thorough treatment, the room feels revitalized, and the air quality has significantly improved. Many thanks to Ash and the talented team at Environ Property Services for creating a better living space for us!
- tangelicaoac | Google Review
Great experience
We had a great experience with Environ London after experiencing some excess condensation and mould concerns. When booking, Alisha was super helpful and flexible with us and worked with us to find an ideal date ahead of the expected arrival of our new baby, which was much appreciated. We then had Bill out to assess and treat the issue. He was super friendly and knowledgeable and gave us the piece of mind we needed. Thank you!!
- Jade.S | Google Review
2. Henderson Wood
Website: https://hendersonwood.co.uk/
Address: 81 Lee High Rd
Contact: 075 4014 7814
Hours: Monday-Friday 9:00 AM-5:00 PM
Henderson Wood delivers comprehensive diagnostic surveys led by Royal Institution of Chartered Surveyors (RICS)-certified surveyors. Given their expertise, they can pinpoint the exact sources of moisture and implement heat-recovery ventilation systems.
Plus, they also use high-tech visual inspections alongside precise thermal imaging cameras to catch problem areas early.
From what we’ve seen, these specialists are fantastic at applying professional-grade anti-fungal treatments. They can even replace ruined plaster with specialised salt-resistant coatings.
It’s a bummer that you’ll have to wait two to three days after the initial property inspection to receive your comprehensive survey report. This delay means you can’t get an immediate treatment plan in place.
Customer Reviews
Highly recommend
Had them come to fix my damp and mould problems in my Bathroom, did an amazing job and were extremely professional. They were always on time and kept me well informed too. I would highly recommend them!!!
- MK | Google Review
Really impressed
The entire process was super professional. Javad was excellent and thorough and extremely experienced/skilled in this field. Also very kind and explained everything in detail in person. I was really impressed with the entire process. Great job !!!
- Sarah Moore | Google Review
3. Treat Mould Ltd
Website: https://treatmould.com/
Areas Served: London
Contact: 0208 2266 345
Hours: Monday 6:30 AM-11:00 PM, Tuesday-Friday, Sunday 7:00 AM-11:00 PM, Saturday 7:00 AM-11:30 PM
Treat Mould uses advanced technology and careful containment through tailored remediation strategies. All these are done through thermal imaging and moisture meters, safely eradicating persistent fungal colonies and restoring indoor air quality.
Their technicians even set up strict physical isolation barriers to prevent airborne cross-contamination whilst clearing out infested areas. They also apply waterproofing coatings and basement tanking systems to block external moisture entries.
But you should keep in mind that their service fees are completely variable and rely entirely on a bespoke assessment of your property.
While fluctuating rates are common, their policy requires a full consultation before any final costs are established. It’s a tad tricky if you just want a quick price quote over the phone.
Customer Reviews
Fantastic service
Great company, they attended and treated the mould, and even did some additional treatments. They also came back to treat an additional area. Fantastic service, we would definitely recommend this company. Thank you. Kind Regards Leon & Joanna.
- Leon Paul | Google Review
Recommended in a heartbeat
I had the unfortunate discovery of mould behind a wardrobe caused by steam and condensation from an en suite shower. Called Treat Mould who sent out two very friendly and helpful guys to treat it and determine the cause. They sent me a report detailing their findings and some solutions to help prevent recurrence. Prompt friendly efficient and neat service. I hope I don’t have to but would use again and recommend in a heartbeat!
- Daniella Duxbury | Google Review
4. Mr Flood Ltd
Website: https://www.mrflood.co.uk/
Address: 124 City Rd
Contact: 0792 2113 254
Hours: 24/7
Mr Flood’s 24/7 emergency response is excellent during severe flooding or sudden leaks. They even do scientific laboratory testing to identify specific fungal species and airborne toxins.
They also do liquid damp-proof injections to block rising moisture from soaking your masonry.
When our team called their helpline to ask about a severe leak scenario, the representative explained exactly how they collect structural samples to track down hazardous varieties like Stachybotrys.
We also appreciate that they provide comprehensive scientific reports that serve as reliable legal evidence in housing disputes or medical reviews.
On the downside, they completely exclude liability for direct or consequential damages. Sadly, this can leave customers with little or no recourse for certain situations.
Customer Reviews
Effective
So far, all is brilliant; in a long day Mr Flood has got rid of all our mould issues, chipped back the affected plaster, and left the affected area to dry. The conservatory is as clean as it has ever been. Work continues…..
- tony mansell | Google Review
Highly recommend
We used Mr Flood for a damp and mould survey for the rented property. Not only was the report provided promptly and professionally, but he also took the time to explain the findings clearly and help us interpret the results. He went further by assisting in drafting a dispute letter and giving practical information to support our next steps. His expertise and support have been invaluable, and we would highly recommend his services
- Blue Butterfly | Google Review
5. AirFresh London
Website: https://mouldremovallondon.co.uk/
Address: 20 Brixton Hill
Contact: 0203 130 4068
Hours: 24 Hours
AirFresh London provides highly regulated, evidence-based remediation using United Kingdom Association of Mould Experts (UKAME) trained technicians and strict HEPA containment protocols.
Their team deploys medical-grade air filters capable of capturing airborne particles as small as a few nanometers. Plus, they strictly use Biocidal Products Regulation (BPR) compliant solutions to keep your pets and children completely safe during the treatment.
On top of that, they offer a 12-month service guarantee backed up by professional protein swab testing.
But their emergency response time ranges from 24 to 48 hours, which doesn’t feel fast enough if you’re dealing with a severe, rapidly spreading outbreak.
Customer Reviews
Absolutely fantastic
Jo and her team were absolutely fantastic. I was explained about the process, kept informed and sent pictures throughout the treatment. The team is thorough and after they left the property was restored and mould free. Jo and her team is professional and very reasonably priced. I definitely recommend her service to others who need mould treatment.
- Monika Gaehler | Google Review
Extremely professional and helpful
Mould management carried out some removal works at our property and successfully removed all traces that we were concerned about in various rooms. The gentleman who carried out the work was extremely professional and helpful. I would recommend this business to anyone who was worried about any mould in their property, even if only a very small amount.
- Natasha Cole | Google Review