How Much Does a New Roof Cost in Dublin?

Two houses with the same floor area can need very different roofing work. A straightforward two-pitch roof and a roof with hips, valleys, dormers or several chimney junctions do not take the same time or materials to renew.

First establish how much of the roof is being renewed and which parts of the existing build-up are included. Only then can two quotes be compared on the same basis; a full reroof, a defined section and a repair are different scopes, not interchangeable totals.

Roof shape and connected junctions

The area of covering is a starting point, not a complete specification. A roof with several pitches, hips, valleys, dormers, roof windows or changes in level can involve more detailed setting-out and finishing than a simple roof shape. Eaves, ridges, verges, chimneys and junctions with extensions also contribute to the amount and type of work.

A measured area should be considered alongside the components that meet it. Ask whether the proposal describes each roof plane and the related details, rather than comparing a rough square-metre figure alone. The drawing or written description should make clear which parts are included and whether a connected garage or extension forms part of the same scope.

Covering layers to remove and reinstate

The existing roof and the chosen specification affect material requirements. Slate, tile and other coverings differ in format, weight, fixing method and detailing. Matching the appearance of an existing roof may also need consideration, especially where only part of a covering is being renewed or the property has a distinctive finish.

A quote should say whether it covers only the outer covering or also components beneath it, such as battens, underlay, fixings or other layers where applicable. Do not assume that two descriptions such as re-roofing or new roof include the same build-up. Ask the contractor to identify the selected materials and explain any alternatives in separate, comparable scopes.

Build-up, insulation and ventilation

Insulation and ventilation can affect the proposed build-up, junction heights and how the roof meets walls, chimneys, roof windows and adjoining sections. The suitable detail depends on the existing construction and the work being considered; changing one layer can affect the way another part connects.

Ask whether insulation or ventilation work is included, excluded or needs a separate decision. The quote should name the relevant junctions and explain any assumptions about the layers. Do not infer an energy saving from a roof description alone; the specification and wider building conditions matter.

Access, protection and waste removal

Roof height, pitch, neighbouring buildings, boundaries, parking and the space available around the property can influence the access arrangements. Scaffolding or other suitable equipment may be needed, and a rear extension, conservatory or narrow passage can affect how materials are brought to and from the work area. These arrangements should be considered by the contractor, not tested by the homeowner.

Check whether the written scope includes access equipment, protection for the property, removal of the existing covering and disposal of waste. If a skip, traffic arrangement or another site measure is needed, the quote should say whether it is included or excluded. A lower total may cover a narrower scope, so compare these items before deciding that two figures describe the same work.

Concealed condition and provisional work

Some conditions cannot be confirmed from an indoor mark or a ground-level view. An assessment may identify wear in the covering, failed fixings or a junction that needs closer review, while supporting parts may remain concealed until suitable access or opening-up is agreed. The quote should separate confirmed work from provisional items.

Ask how an unexpected finding would be recorded and priced, and who will explain any proposed change. Additional work and cost should be discussed and agreed before it proceeds. A clear proposal states its assumptions instead of treating hidden damage as either certain or irrelevant.

Repair, partial renewal or full reroof

A local defect may be suitable for repair if the surrounding covering and supporting details remain serviceable. Wider renewal may be worth comparing when several areas have deteriorated or repeated defects point to a broader problem. Neither the roof’s age nor the number of visible marks, by itself, settles the decision.

If both options are reasonable, ask for the repair and replacement scopes to be set out separately. Each should explain which findings it addresses, what materials and access are included, and what remains outside the proposal. The existing guide, Roof Repair or Full Replacement: How to Decide, discusses the decision; a condition assessment is still needed for your property.

A like-for-like quote checklist

For a useful comparison, check that each proposal covers the same roof sections and describes the covering, underlayers, junction details, access, removal and disposal. Look for the stated total, VAT treatment, exclusions, provisional items and any work that will only be confirmed after opening-up. Ask what preparation and protection are included and how changes will be approved.

A quote should identify the property and work area, describe the proposed sequence at a practical level and separate optional items from necessary work. It should explain what the contractor observed and what remains uncertain. The amount alone does not show whether one proposal includes insulation, new battens or a different extent of renewal.

For a property-specific scope, arrange a new roof and replacement assessment that compares renewal with any suitable repair options.

What to share before an assessment

Give the property location or Eircode, the type of roof if you already know it, which areas have had repairs and what prompted you to consider renewal. Existing paperwork, previous quotes or photographs taken from indoors or at ground level can provide context. Note any access limits, such as a shared boundary or an extension below the roof.

You do not need to inspect the roof or enter an attic to make an enquiry. Do not use a ladder, walk on a roof, move insulation or investigate a ceiling that is bulging or wet near electrical fittings. If you notice an immediate electrical or structural hazard, keep people away and seek appropriate professional help rather than gathering more information.

Compare new-roof quotes on the same basis

• Check which roof sections, edges and junctions each proposal covers.
• Compare the named covering and the layers beneath it.
• Confirm access, property protection, removal and waste disposal.
• Check whether insulation, ventilation and associated details are included.
• Separate confirmed work from provisional items and exclusions.
• Ask how additional findings and changes to scope will be agreed.
• Share only information gathered from a safe position.

Frequently Asked Questions

Can a new roof be priced from the house size?

Not reliably. Roof shape, coverings, junctions, access, the existing build-up and the findings of an assessment all affect the scope. A property-specific quote should identify what is included.

Does a new-roof quote include insulation?

Not necessarily. The proposal should state whether insulation and any related ventilation or design work are included, excluded or subject to further assessment.

Should I replace a roof because it is old?

Age is useful background, but it does not determine the condition of every roof. Compare the inspection findings and any suitable repair option with the proposed renewal scope.

What if hidden damage is found after work begins?

Ask in advance how concealed conditions will be recorded and how any change in work or cost will be explained and agreed before it proceeds.

Do I need to climb up to show the roofer the problem?

No. Share safe ground-level or indoor observations and any existing photographs. Leave roof and unsafe attic access to professionals using suitable controls.

Related Roofing Services

• New Roofs & Re-Roofing
• Roof Repairs
• Flat Roofing