I understand you're facing a damp issue on your kitchen wall and are unsure how to proceed. Both options suggested have merits and drawbacks, so here's a breakdown to help you decide:
Option 1: Masonry cream and dehumidifier
Pros:
Potentially quicker solution: Masonry cream can effectively address rising damp by creating a waterproof barrier in the wall. Dehumidifiers will pull moisture from the air, preventing further damp build-up.
Less invasive: This option avoids major structural changes or digging up the ground.
Cost-effective: Compared to other solutions like excavation and damp-proof course installation, this can be cheaper.
Cons:
Effectiveness depends on diagnosis: If the cause is indeed trapped moisture, this might work. However, if it's truly rising damp due to the higher ground level next door, it might not be a permanent solution.
Long-term monitoring required: Even if successful, you'll need to monitor for damp recurrence and potentially reapply the cream over time.
Dehumidifier running costs: While effective, running a dehumidifier can add to your electricity bills.
Option 2: Excavation and damp-proof course (DPC) installation
Pros:
Permanent solution: Addressing the root cause (higher ground level) by lowering the ground and installing a DPC permanently stops rising damp.
No need for further intervention: Once done, you shouldn't have to worry about damp again.
Increases property value: A damp-free house is more valuable and easier to sell.
Cons:
Expensive: Excavation, DPC installation, and repairing resulting damage can be costly.
Disruptive: The process involves digging up the ground near your foundation, which can be messy and inconvenient.
Time-consuming: Depending on the extent of work, it could take several days to complete.
Decision and additional advice:
Choosing the best option depends on the accurate diagnosis of the damp cause. I recommend considering these:
Further investigation: Hire a qualified damp specialist to conduct a thorough assessment, including moisture readings and potential ground level surveys. This will confirm the type of damp and the most effective solution.
Building regulations: Some DPC installation methods may require building regulation approval. Consult your local council or a building surveyor for guidance.
Quotes and warranties: Get quotes from reputable contractors for both options and compare them, including labor, materials, and warranty terms.
Remember, choosing the right approach can save you money and hassle in the long run. Don't hesitate to seek professional advice to ensure your damp issue is resolved effectively and permanently.
I hope this information helps you make an informed decision! Regards