PCA CERTIFIED
Condensation Control Services in London
At Dampstar, we provide professional condensation control services across London, helping homeowners identify the underlying cause of excess moisture before recommending the most appropriate solution. Whether the issue is isolated to a single room or affecting the entire property, our PCA certified damp surveys are always based on the findings of a thorough inspection.
What is Condensation Control?
Condensation control is about managing the moisture that naturally builds up inside a home. It happens when warm, moist air meets a cold surface, such as a window, and the moisture in the air turns back into water droplets.
It’s most common around windows, in bathrooms, kitchens, and other poorly ventilated rooms, especially during colder months when there’s a bigger difference between the warm air inside and the cold surfaces of the property.
What Causes Condensation in a Property?
Condensation issues usually come down to a mix of everyday activities and the building’s own conditions. Key causes of condensation are:
- Everyday activities: cooking, showering, and drying washing indoors releases moisture into the air
- Poor ventilation: this moist air has nowhere to escape, so it settles on the nearest cold surface
- Cold surfaces: single glazing, uninsulated walls, and poorly fitted windows cool quickly, encouraging condensation
- Big temperature differences: warm indoor air meeting cold surfaces increases the likelihood of condensation forming
- Blocked airflow: furniture against external walls or closed doors can trap moist air in one place
- Colder months: heating indoors combined with cold external walls and windows creates ideal conditions for condensation
How Dampstar Treat Condensation Issues
Condensation is very common in properties across London, especially those with poor insulation, lack of ventilation or high indoor humidity. Sometimes, just increasing airflow can make all the difference. Other times, the damp can cause mould and become too far gone, this is when a damp survey would be required to identify the underlying cause.
A thorough damp survey
Since condensation can look similar to other types of damp, Dampstar’s survey identifies whether condensation is actually the cause, and pinpoints why it’s occurring in your property, whether that’s poor ventilation, cold spots, or everyday moisture-producing habits.
A detailed, no-obligation quotation
If any physical improvements are needed, such as extractor fans or additional ventilation, you’ll receive a clear, itemised quote for the work involved, at no extra cost.
Managing condensation day-to-day
Alongside any physical works, Dampstar provides guidance on simple habits that make a real difference, such as ventilating rooms after cooking or showering, wiping down windows to remove moisture before it settles, drying washing outdoors where possible, and keeping furniture away from cold external walls. This combination of practical advice, and ventilation and insulation improvements, will prevent condensation from returning.
Why Choose Dampstar?
As a trusted, expert local team, we combine traditional craftsmanship with modern methods, delivering reliable, on-time damp proofing results property owners can depend on.
Expertise
Our team has many years of hands-on experience dealing with all types of damp in London’s unique building landscape.
Honest assessments
We provide clear, transparent reports and never recommend work you don’t need.
Guaranteed work
Many of our services come with long-term guarantees for your peace of mind.
Full compliance
All our damp-proofing treatments are fully compliant with UK building regulations and industry standards.
Our excellent reputation
Our many 5 star Google reviews speak for themselves.
Trusted, PCA Certified Damp Proofing Services
Accreditations & Certifications
Our accreditations reflect our commitment to the highest standards in damp proofing, waterproofing and timber preservation. As PCA-certified damp and timber surveyors, we follow industry best practices, use proven methods and deliver work you can trust. Explore our professional accreditations and see why homeowners, landlords and commercial clients choose Dampstar.
What Our Clients Say
Posted on Google Louis GovenderTrustindex verifies that the original source of the review is Google. Very professional from outset in term of survey, report and quotation. Workmanship outstanding. Will recommend Dampstar anytime rgds Louis GovenderPosted on Google Jo EllawayTrustindex verifies that the original source of the review is Google. Everyone at Dampstar, Andrew, Charlene and Defrim is super helpful, knowledgeable and friendly. Their service is professional, prompt and everything is explained really well. It took several tries to find a company I felt I could trust and I am very happy I chose. them.Posted on Google Anusuya RaghavanTrustindex verifies that the original source of the review is Google. Andrew, Charlene & Defrem were professional from start to finish. The survey was booked in days, the quote quickly followed. It was clearly set out and itemised. I had questions which were all answered promptly. Importantly the work was done to schedule with my home left clean and tidy.Posted on Google Gurpinder singh floraTrustindex verifies that the original source of the review is Google. The workmanship was outstanding and everything was completed on schedule. Our loft is now a beautiful extra bedroom with plenty of light.Posted on Google Angad GarchaTrustindex verifies that the original source of the review is Google. Andrew was great at highlighting the rising damp problem and advising on how to avoid future problems. The quote was clear, reasonable and carried out quickly and efficiently with a guarantee. Great service overall from Andrew and team.Posted on Google Ahlam AkramTrustindex verifies that the original source of the review is Google. for the past 7 years and probably 6 payments to different companies .. I was desperate and lost my trust to all .. Dampstar did the job.. most reliable and trust worthy exactly within the time frame allocated to the job.. so Grateful to them..
Damp Proofing in London Since 1960
Dampstar are based in Chiswick, West London, but provide condensation control services across the whole of London and Hertfordshire.
Our Services
Damp can lead to mould growth, damaged plaster, timber decay and poor indoor air quality if left untreated.
Groundwater soaking up into your walls ruins wallpaper, spoils plaster, and leaves musty smells.
Black Mould
Black mould causes toxic fungal growth on surfaces, causing breathing problems and allergic reactions.
Moisture can lead to wet rot, dry rot and woodworm infestations, putting your property’s structural timber at risk.
Effective waterproofing protects your property from water ingress, damp, mould and costly structural damage.
Condensation Control FAQs
How do I know if it's condensation and not another type of damp?
Condensation typically appears around windows, in bathrooms, kitchens, and poorly ventilated rooms, often alongside mould. A survey can confirm the cause with certainty.
Do I need a survey before getting advice or a quotation?
Yes, a paid survey identifies why condensation is occurring in your property and is conducted by a PCA certified surveyor. Dampstar will then provide tailored advice and, if needed, a detailed quote at no extra cost.
Can I fix condensation myself?
Simple habits like ventilating rooms, wiping windows, and drying washing outdoors can help, but if condensation keeps returning, a survey can identify an underlying cause needing further attention.
What's the difference between condensation and rising or penetrating damp?
Condensation comes from moisture inside the home meeting cold surfaces, while rising and penetrating damp involve water entering the property from the ground or outside.
Does condensation cause mould?
Yes, persistent condensation is one of the most common causes of black mould, particularly around windows, in corners, and on poorly ventilated walls.
How long does it take to resolve a condensation problem?
This depends on the cause. Some issues improve quickly with better ventilation habits, while others, such as installing extractor fans, may take a bit longer.
Will I need any building work done?
Not always. Many condensation issues are managed through improved ventilation and daily habits, though some properties may benefit from extractor fans or additional insulation.
Is condensation more common in certain properties?
Yes, older properties with single glazing or poor insulation, and homes with limited ventilation, tend to experience condensation more frequently, especially in colder months.
Book A Survey
DAMPSTAR
Hours
- Mon 08:00 – 17:00
- Tue 08:00 – 17:00
- Wed 08:00 – 17:00
- Thu 08:00 – 17:00
- Fri 08:00 – 17:00
- Sat 09:00 – 17:00
- Sun Closed