Loft condensation investigation in Derry/Londonderry

Where we work around Derry/Londonderry

Other towns close by include Limavady.

Postcode districts	BT48
Council area	Derry City and Strabane
County or area	County Londonderry

What is a loft condensation investigation?

We inspect the loft in daylight and by torch, measure moisture in the timbers, check the underlay, ventilation, insulation and the routes that let warm air in from the house, and look at the roof from outside. You get written findings with photos and a plain list of what we recommend, which may include work we do not offer. More about a loft condensation investigation.

Loft inspection with moisture readings
Check of insulation, ventilation and air leaks
Written findings with photos

Why book with us in Derry/Londonderry

Fixed written price

The price on the quote is the price you pay. It only changes if you change the job, or if we find something hidden, such as rot, and you agree the change in writing first.

No pressure selling

You get everything in writing and decide in your own time.

Plain-English advice

We explain what we find in plain English, and say so when nothing needs doing.

Clear contact details

Your quote says who to call with questions before, during and after the work.

How much does a loft condensation investigation cost in Derry/Londonderry?

£145 to £245Investigation visit with written findings. Priced before you book, with written findings afterwards.

This work is not an energy-saving material for VAT, so it is standard-rated if VAT applies. Where it is done alongside insulation, the quote shows each part separately.

Work out a guide price for your loft

Building regulations in Northern Ireland

Northern Ireland has its own Building Regulations, with energy guidance in Technical Booklet F1. Upgrading loft insulation may count as a thermal alteration, so check with your council's building control. How the rules work across the UK.

Questions about a loft condensation investigation in Derry/Londonderry

Do you cover all of BT48?

Yes, we cover the BT48 postcode district and the districts around Derry/Londonderry.

Do you charge extra to travel to Derry/Londonderry?

Not normally. Our guide prices include normal travel to Derry/Londonderry. If an address needs a ferry or an unusually long journey, we tell you the cost before you book.

What do I need to do before you arrive in Derry/Londonderry?

Clear a path to the hatch and, if you can, move stored items away from the area we will be working in. Tell us about anything heavy or fragile.

Is the investigation fee taken off the work?

The investigation is priced on its own so the advice is not tied to selling work. You decide what to do afterwards.

Can loft insulation cause condensation?

It can expose an existing problem: the loft gets colder, so the same moist air condenses more readily. Ventilation and sealing air leaks put it right.