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County Armagh · Northern Ireland

Bonded polystyrene bead insulation in County Armagh

County Armagh properties get the same survey-first approach to bonded polystyrene bead insulation: check, explain, price, then book. Bonded bead insulation is expanded polystyrene beads coated with an adhesive binder as they are blown in, so they set into a free-draining, fully filled layer.

Cutaway sample of a cavity wall filled with bonded white polystyrene beads between brick and block

Free survey in County Armagh

Tell us about the property and we will arrange a free survey and a fixed price.

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Bonded polystyrene bead insulation across County Armagh

We cover 4 towns in County Armagh: Craigavon, Portadown, Armagh and Lurgan.

Before any material is chosen, exposure is checked. Parts of County Armagh face some of the heaviest wind-driven rain in the UK, especially exposed coastal and upland sites. Here the survey is stricter: some walls suit only certain certified systems, and some should not be filled at all.

Where a County Armagh property has an extension or a conservatory, we check how the old and new walls meet, because that junction is often missed. Most County Armagh houses built from the 1920s onwards have cavity walls, but the survey still checks each one: cavity width, debris, the condition of the brickwork and how exposed each wall is.

Building control in Northern Ireland

In Northern Ireland, inserting insulation into an existing cavity wall needs a building control application to your council before the work. We make sure the application route is agreed and confirmed in writing before any drilling starts.

Funding in Northern Ireland

  • The Affordable Warmth Scheme, run with the NI Housing Executive, helps owner-occupiers and private tenants with a total gross household income under £23,000; cavity wall insulation is a priority measure where suitable.
  • The NI Sustainable Energy Programme funds energy efficiency schemes through participating providers.
  • ECO4 does not apply in Northern Ireland.

Sources: Building Control NI: frequently asked questions; Belfast City Council: what are the building regulations; NI Housing Executive: Affordable Warmth Scheme; Utility Regulator: NI Sustainable Energy Programme.

What to know before you choose beads

Polystyrene is combustible, so beads are not the right choice for every building; height, use and nearby openings matter, and the system certificate sets the limits. PVC-sheathed cables in the cavity should be sleeved or kept out of contact with the beads where the certificate requires it. We check both at survey.

What is included

  • Certified bonded bead system
  • Binder applied at the nozzle
  • Making good to the mortar colour
  • Cable and opening checks at survey
  • Regulations route and guarantee named on the quote

Bonded polystyrene bead insulation prices in County Armagh

Bonded polystyrene bead insulation guide prices
Bonded polystyrene bead insulation guide pricesGuide price
Detached house£2,295–£3,795
Semi-detached house£1,495–£2,495
End-terrace house£1,295–£2,195
Detached bungalow£1,295–£2,195
Semi-detached bungalow£895–£1,595
Mid-terrace house£795–£1,395

No VAT is charged on installing insulation in homes until 31 March 2027 (then 5%). Guide ranges only: the fixed price is confirmed in writing before any work starts, and anything that could not be seen at survey is agreed with you first.

What happens next for a County Armagh property:

  1. Tell us about the property

    Postcode, property type and what you need.

  2. Free survey

    Walls, cavity, condition and exposure checked and photographed.

  3. Written result and price

    Suitable, suitable after repairs, or not suitable, with a fixed price.

  4. Work and paperwork

    Installation, making good, and the regulations and guarantee paperwork.

Last reviewed 19 October 2026.

Bonded polystyrene bead insulation in County Armagh: questions

Do you cover all of County Armagh?

Yes. We cover 4 towns across County Armagh, including Craigavon, Portadown, Armagh and Lurgan, and the villages around them. Island and remote addresses are surveyed by arrangement.

How much does bonded polystyrene bead insulation cost in County Armagh?

Our guide ranges for bonded polystyrene bead insulation are shown on this page. The fixed price for your County Armagh property is confirmed in writing after the survey, before any work starts.

How soon can you visit in County Armagh?

We arrange dates when you get in touch. Availability varies through the year, so we give you real dates rather than a promise on the website.

Are there grants for insulation in County Armagh?

In Northern Ireland, the Affordable Warmth Scheme helps eligible households with a gross income under £23,000. We cannot promise funding, but we will point you to the right official route.

Bonded polystyrene bead insulation in nearby areas

Book a free survey in County Armagh

Free survey with an install quote. Written result. Fixed price before any work.