Ground moisture barriers for damp subfloors.
A polythene barrier over the soil under your raised floor helps reduce damp rising from the ground. We fit it with underfloor insulation, or on its own.
- Licensed and insured
- No hidden fees
- Free quotes
Ground moisture barrier
What a ground moisture barrier is
A ground moisture barrier is a polythene sheet laid over the soil under a raised floor. Moisture rises from the ground, and the barrier helps reduce how much of it reaches the space under your home.
It pairs well with underfloor insulation. We often fit the two together, as one job under the floor.
A barrier helps with moisture coming up from the soil. It will not repair leaks, fix drainage or replace good ventilation, and if we see a bigger moisture problem during the assessment, we will tell you.
Pricing: we quote each job after a free assessment, with no hidden fees.
Who a moisture barrier suits
It is worth asking about if any of these are true.
- A home with a raised timber floor and bare soil underneath.
- A subfloor that feels damp or smells musty.
- You are having underfloor insulation installed.
- Rentals where the underfloor space needs attention.
How a moisture barrier job works
Free consultation and assessment
We look at your subfloor and what is underneath. Most assessments are done through our online system, and we come out in person for more complicated homes or on request.
A clear, detailed quote
We quote each job, with no hidden fees. If you are also having underfloor insulation, we can quote the two together.
Install
We agree a start date and timeline that suit you, then lay the barrier over the soil, working respectfully to keep disruption low.
Final quality check
We finish with a comprehensive quality check under the floor before we hand the job back to you.
Moisture barriers: common questions
Can't see your question? Give us a call.
What is a ground moisture barrier?
It is a polythene sheet laid over the soil under a raised floor. It helps reduce damp rising from the ground into the space below your home.
Do I need a moisture barrier if I am having underfloor insulation?
Often it makes sense to do both together. We look at the subfloor at the assessment and tell you whether a barrier is worth adding.
Will a moisture barrier fix a damp subfloor?
It helps reduce moisture rising from the soil, but it will not fix leaks, drainage or ventilation problems. If there is a bigger moisture issue, it should be identified so it can be addressed properly.
How much does a moisture barrier cost?
We quote each job, because it depends on the size of the subfloor and how easy it is to access. You get a clear, detailed quote with no hidden fees.
Get a free, no-obligation quote.
Local installers, not a call centre. Fill out the form or call us to schedule a free consultation, and we aim to call you back within 48 hours.
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