About Dormer Windows Ireland
We publish an independent guide to dormer window replacement prices, dormer cheek insulation, Part B fire-escape rules and SEAI grants, and connect you with one vetted window company covering your county.
Free, no obligation. One vetted window company covering your county replies.
An independent dormer window guide
When you send a quote request, we pass it with your consent to one vetted window company covering your county. They arrange an on-site survey of your upper dormer and ground-floor openings, check the lead apron and cheek insulation, give you a written quote, and supply and fit the windows.
How our price guide works
Our supply-and-fit price guide shows typical Irish ranges for replacing single dormer windows (€450 to €950 in white uPVC, €650 to €1,250 in coloured triple uPVC or flush sash, and €850 to €1,750 in aluminium or alu-clad), full dormer bungalow packages (€5,200 to €10,500 in uPVC), dormer cheek insulation upgrades (€650 to €1,450 per dormer) and new attic dormer construction (€3,500 to €7,500). Your exact price always comes in writing after an on-site survey.
County figures
Glazing shares and median window areas are our sums from SEAI's public BER file; heating degree days are from Met Éireann's 1991–2020 climate grid; detached housing shares, build periods and town populations are from CSO Census 2022 tables F2007A and F1015.
Contact
Email hello@dormerwindows.ie. If you spot a figure that needs updating, let us know and we will check it.
Get a dormer window price for your home
Tap what you need and your county. Your enquiry goes to one vetted window company covering your county for a site inspection and written price.
Every guide, calculator and county page
Jump straight to any specification guide, our interactive calculator, the technical glossary or your county page.
Price & Specification Guides
Calculator, FAQ & Glossary
Replacing cold, draughty or rotten dormer windows?
One vetted window company covering your county inspects the dormer frames, lead apron and side cheeks, and gives you a written price.