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Trusted Damp Proofing Experts in South & West Wales
Tywi Damp Proofing has been addressing damp-related challenges in residential and commercial properties for over 35 years. Our approach recognizes the uniqueness of every damp problem, ensuring tailored solutions that prioritize the most effective systems for each property. We specialize in diagnosing and resolving rising damp, penetrating damp, wet/dry rot, and condensation issues, combining technical expertise with practical problem-solving. Our partnerships with industry-leading suppliers like Delta Membrane Systems and Fresh NuAire enable us to deliver durable, energy-efficient solutions, including tanking systems and heat recovery ventilation.

With a focus on structural integrity and long-term protection, we work collaboratively with builders to ensure seamless integration of our treatments, backed by manufacturer guarantees where applicable. Our teams deep understanding of moisture dynamics and commitment to quality has established us as trusted specialists in South and West Wales.
Services
Damp Proofing Wet/Dry Rot Treatment Condensation Control Tanking Systems Wall Tie Replacement
Highlights and features
  • We offer 35+ years of specialized experience in damp and rot remediation.
  • Our solutions are tailored to each propertys unique moisture challenges.
  • We use approved systems from Delta Membrane Systems and Fresh NuAire.
  • All applicable work is covered by manufacturer guarantees.
  • We prioritize structural safety and energy-efficient outcomes.
Associations and certifications
  • NHBC
  • Department of the Environment
Services
Damp Proofing
We diagnose and resolve rising and penetrating damp using industry-approved systems. Our solutions prevent moisture ingress, protect structural integrity, and comply with building regulations. Treatments are customized to address specific property needs.
Wet/Dry Rot Treatment
Our specialists treat wood rot caused by excess moisture using low-toxicity preservatives. We eliminate fungal growth, reinforce affected areas, and implement preventive measures to safeguard against future damage.
Condensation Control
We combat condensation with energy-efficient ventilation systems, including heat recovery units. These systems reduce mold growth, improve air quality, and minimize energy loss while maintaining property safety.
Tanking Systems
We install membrane and tanking systems to prevent lateral damp in basements. Solutions include groundwater management and backup systems to ensure dry, usable spaces for residential or commercial purposes.
Wall Tie Replacement
We replace corroded wall ties with mechanical alternatives to restore structural stability. Our method prevents wall cracking and water ingress, ensuring long-term safety for older properties.
People
Mr Hutson
Owner
With over 35 years of experience, Mr Hutson leads Tywi Damp Proofings tailored approach to damp solutions. His expertise in moisture dynamics ensures effective, long-term treatments for residential and commercial properties.
Questions
What types of damp problems do you handle?
We address rising damp, penetrating damp, condensation, and lateral damp issues in residential and commercial properties.
How do you determine the right solution for my property?
We assess moisture sources, building materials, and structural conditions to design tailored damp-proofing systems.
Do you offer guarantees for your work?
Yes, applicable treatments are covered by manufacturer guarantees for long-term protection.
Can you help with rot damage caused by damp?
We specialize in treating wet/dry rot and preventing recurrence through targeted preservative treatments.
Are your solutions energy-efficient?
Yes, we integrate systems like heat recovery ventilation to reduce energy waste while controlling moisture.
Do you work with builders on renovation projects?
We collaborate with builders to ensure seamless damp-proofing integration during renovations or new builds.