Lisburn, County Antrim
Condensation and mould ventilation fixes in Lisburn
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Lisburn and BT17, BT27 and BT28.
- From £410 inc VAT per fan
- By arrangement
In Lisburn, condensation and mould are usually at their worst between October and March.
We cover Lisburn and the surrounding BT17, BT27 and BT28 postcodes as part of our work across County Antrim. Visits here are by arrangement: we quote travel separately and in writing before you commit.
Condensation and mould fixes in Lisburn at a glance
- Town
- Lisburn, County Antrim
- Postcode districts
- BT17, BT27 and BT28
- Nearby
- Belfast (7 miles), Castlereagh (7 miles) and Dundonald (11 miles)
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
Condensation and mould fixes for Lisburn homes
Ventilation is usually the biggest part of the cure, but not the only part. Heating patterns, insulation gaps and cold bridges matter too, and some damp is not condensation at all: leaks, penetrating damp and rising damp need different trades.
Survey and findings
Humidity and surface readings, existing fans flow-tested, and a written list of causes and fixes.
Fan upgrades
Weak or loft-vented fans replaced and ducted outside, with humidity control.
Guide prices in Lisburn
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £725–£1,275 inc VAT |
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £315–£550 inc VAT |
| Condensation and mould ventilation survey with written findings (per home) | £115–£205 inc VAT |
Northern Ireland rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job. Travel is quoted separately for this area.
Signs it is time to call us
- Black mould on window reveals, ceilings or behind furniture
- Water running down windows on cold mornings
- Musty smell in bedrooms or wardrobes
Rules that apply in Northern Ireland
In Northern Ireland, ventilation is covered by the Building Regulations (Northern Ireland) and Technical Booklet K. Landlords in Northern Ireland have repairing and fitness obligations that cover serious damp.
Questions from Lisburn
What is the price of a condensation fix in Lisburn?
Guide prices for Lisburn use Northern Ireland rates: new ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) is typically £410 to £675 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Is PIV or MVHR better for condensation?
For most existing homes with general condensation, PIV plus good extract fans is the most cost-effective fix. MVHR suits airtight, well-insulated homes and full renovations.
How much does a condensation survey cost?
A ventilation survey with written findings costs £125 to £225 including VAT.
Is the survey free in Lisburn?
Visits here are by arrangement. Because of the ferry or long travel involved, we quote travel separately and in writing before you commit, and we can often combine visits to keep the cost down.
How do I get a price for a condensation fix in Lisburn?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
We can log humidity in your Lisburn home afterwards so you can see the improvement.
Condensation and mould fixes near Lisburn
More services in Lisburn
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.