Loft Insulation by Dublin Roofing Company

Loft Insulation Dublin

Insulation laid to a proper depth across your attic floor, with the eaves left open so the roof stays dry.

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Free, no-obligation quote

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Tell us about the roof and we will call you back to arrange a visit.

Free QuotesWritten, no obligation
24/7, 365 daysEmergency call-outs
Since 2018Sandyford, Dublin 18
Fully insuredPublic liability cover

Loft Insulation

Loft Insulation Laid by Roofers

Heat rises, and in a house with a thin or patchy layer of insulation in the attic, a good share of it carries straight on into the roof space. Many older homes still have the few centimetres that were put down when the house was built, often flattened, gapped or pushed aside over the years by people storing boxes or working on wiring.

First layer between the joists
Second layer laid across them
Loft hatch insulated and draught-sealed
Pipes and tank in the loft lagged
Old, compressed insulation lifted where needed
Waste and offcuts taken away

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Ventilation at the Eaves

A warmer house below means a colder loft above, and a cold loft has to be ventilated. Warm, damp air from the house finds its way up into the roof space, and if it cannot get out it settles as condensation on the underside of the felt and the timbers.

Eaves Kept Open

We stop the insulation short of the eaves or fit eaves trays so air can come in through the soffit vents and move up under the roof. The ceiling below still gets covered right to the wall plate.

Signs of a Poorly Ventilated Loft

Drips forming on the underside of the felt, black mould on the rafters or a musty smell in the attic all suggest moist air is trapped. We check for these before adding more insulation and advise on extra vents if the roof needs them.

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Loft Boarding & Storage

Most people want somewhere to keep the Christmas decorations, and the usual mistake is to lay boards straight onto the joists over new insulation. That squashes it flat, and flattened insulation does far less work than the same material left at its full depth.

We fix loft legs to the joists to raise the boarding above the insulation, so you keep a storage platform and a safe walkway to the water tank without giving up the warmth you have just paid for. The area boarded can be as large or as small as you need.

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Storm damage, a leak through the ceiling or a slipped ridge tile: our phone is answered day and night, every day of the year.

FAQs

FAQs About Our Loft Insulation Service

These are the questions we are asked most often when we survey an attic for insulation.

I already have some insulation. Is it worth topping up?

Often, yes. Older houses commonly have a single thin layer that sits level with or below the tops of the joists, which leaves the timber itself acting as a cold bridge. A second layer laid across the joists covers them and adds depth where it counts.

Will insulating the loft cause condensation?

It can if the loft is not ventilated, because the roof space becomes colder once heat stops escaping into it. That is why we keep the eaves open, fit trays where needed and seal the hatch so less moist air gets up there. If we see signs that the roof needs extra ventilation, we tell you before the work goes ahead.

Can I still use my attic for storage?

Yes. We raise any boarding on loft legs fixed to the joists, so the insulation underneath keeps its full depth and the boards sit above it. That gives you a usable storage area and a walkway to the tank or hatch.

What happens to the water tank and pipes?

Pipes running through the loft are lagged and the cold water tank is insulated on its sides and lid. We leave the area directly under the tank uninsulated on purpose, so a little warmth from the room below keeps the water from freezing in a cold snap.

Do you insulate rooms in the roof or between the rafters?

This page covers insulation at ceiling level, laid on the attic floor. Rooms in the roof and insulation between rafters need a different build-up and careful attention to ventilation. If that is what you have, tell us when you get in touch and we will look at it during the survey.

Ask Us Anything

Question About Your Roof?

Ring the office or message us on WhatsApp with a photo and you will get a straight answer.

Call, 24/701 263 5253
WhatsApp089 968 1613
Office
6 Fern Road, Sandyford, Dublin, D18 FP98

Why Choose Us

Why Choose Us for Your Loft Insulation?

Insulating an attic is straightforward work, but getting the airflow right at the eaves decides whether the roof stays dry afterwards.

Sandyford, Dublin 18

An Office You Can Find, a Phone That Gets Answered

Quotes, bookings and any follow-up are handled from our office on Fern Road in Sandyford, Dublin.

We Think About the Roof

While we are in the attic, we can see the underside of the slates, the felt and the timbers, and we let you know about anything that needs attention.

Ventilation Left Working

Soffit vents and eaves gaps are kept clear so air keeps moving under the roof, which helps prevent condensation forming on the felt and rafters.

Storage That Keeps the Warmth

Raised boarding means you do not have to choose between a usable attic and an insulated one, because the boards sit clear of the insulation layer.

Clean, Careful Work

We protect the landing and hatch area below, lift cables clear rather than burying them, and leave the house as we found it, minus the cold.

Free Quotes, Written Down

Call or send the form with your Eircode and we will arrange a visit, look at the roof and price the work before anything starts.

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Irish Suppliers

Irish Names We Work With

Flat roof membranes, fibre cement and natural slate from Irish suppliers.

Professional Loft Insulation

Dublin Roofing Company insulates attics in houses, apartments and business premises throughout Dublin, Kildare, Meath, Wicklow and Louth. We have been working on roofs here since 2018, and we bring the same attention to the roof space as to the slates and tiles above it. Every job is carried out by qualified, fully insured roofers and backed by our guarantee.

Before we call out, it helps to know how the attic is reached, whether there is a pull-down ladder, and roughly how much is stored up there. A quick look through the hatch with a phone torch and a photo sent to 089 968 1613 gives us a good start, or call 01 263 5253.

Need Loft Insulation?

Phone us to have your attic checked for thin, flattened or missing insulation, and we will give you a free written quote.

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How It Works

How a Loft Insulation Job Runs

Most attics in a standard semi-detached or terraced house are finished within a day, with the rooms below left as we found them.

Step 01

Look in the Attic

We check what insulation is there now, how deep it is, whether the eaves are clear, and what wiring, pipes and downlights need working around, then give you a written price for the job.

Step 02

Prepare the Space

Stored items are moved, cables are lifted clear so they are not buried, and recessed light fittings are given covers or space around them so they are not packed tight with insulation.

Step 03

Lay the Insulation

The first layer goes between the joists and the second across them, working back towards the hatch. Eaves trays or a gap at the edges keep the air path from the soffits open.

Step 04

Board, Lag & Tidy

Any storage boarding goes in on raised legs, the hatch is insulated and sealed, pipes and the tank are lagged, and the offcuts and packaging are cleared out of the house.

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