Hampshire Damp Proofers
Ventilation unit installed to control damp air in a room

Damp proofing service

Ventilation Systems

Move damp air out and keep condensation from coming back.

Get a quote for ventilation systems

A free, no-obligation survey and a written quote.

Free, no-obligation surveys
Fixed written quotes
Cause treated, not the patch
Local, Hampshire-based

Damp proofing

Let your home breathe, without losing the heat

Modern homes are sealed up tight to keep heat in, which is good for energy bills but bad for moisture, because the damp air from cooking, washing and simply breathing has nowhere to go. That trapped moisture is what turns into condensation and mould.

Ventilation is the lasting fix. Depending on the property we fit extractor fans in the kitchen and bathroom where the moisture is made, or a whole-home system such as positive input ventilation that gently keeps fresh air moving through the house. The aim is to remove the damp air quietly and efficiently so humidity stays low and mould has nothing to grow on, while keeping the home comfortable and warm.

A wall ventilation grille fitted to control damp air
Green mould and algae from persistent condensation

What's included

What the work covers

Every quote varies depending on the property and what the job needs, but here is what a typical ventilation systems job with us covers from start to finish.

  • An assessment of how the property breathes
  • Extractor fans for kitchens and bathrooms
  • Positive input ventilation for whole-home control
  • Humidity-sensing controls where suitable
  • Advice on running costs and daily use

How we do it

The typical process

  1. Step 01

    Assess

    We look at where moisture is made and where it collects.

  2. Step 02

    Specify

    We recommend the extraction or whole-home system that suits the home.

  3. Step 03

    Install

    Units are fitted neatly and set up to run efficiently.

  4. Step 04

    Explain

    We show you how it works and what it costs to run.

Book a free ventilation systems survey

Tell us what you have noticed and we will come out, find the cause and provide you with a written quote with no obligation.

The quote

Ventilation Systems costs

Every property is different, so we quote each job on its own after a free survey rather than off a description. These are the things that move the figure, and we set it all out in writing before any work starts. The visit is free.

  • Whether you need single fans or a whole-home system
  • The number of rooms being ventilated
  • The type of controls fitted
  • How the units run and where they vent

Areas covered

Ventilation Systems across Hampshire

  • Southampton
  • Winchester
  • Basingstoke
  • Andover
  • Romsey
  • Ringwood
  • Gosport
  • Fareham
  • New Forest

Related services

Common questions

Ventilation Systems questions

What is positive input ventilation?

It is a quiet unit, usually sited in the loft, that gently pushes filtered fresh air through the home. That keeps humidity down across the whole house rather than just one room.

Are the fans noisy or expensive to run?

Modern units are quiet and use very little power, and many run only when humidity rises. We tell you the running costs before you decide.

Will ventilation on its own cure my mould?

If the damp is condensation, controlling the moist air is the real fix. We treat the existing mould first, then ventilate so it does not return.

Where does a PIV unit go?

Usually in the loft, with a discreet ceiling diffuser on the landing. In a flat without a loft we fit a wall-mounted unit instead.

How much does ventilation cost to run?

Very little. A PIV unit uses about as much power as a low-energy bulb, and humidity-controlled fans only run when they are needed. We provide you with the running costs before you decide.

Get a quote for ventilation systems

A free, no-obligation survey and a written quote.

Call now Get a quote