Flat RoofingContractors

Commercial and blocks

Flats, HMOs and block roofs across County Down

We replace and repair flat roofs on blocks of flats, converted houses and HMOs across County Down, for freeholders, landlords, managing agents and resident management companies. Replacement surveys are free, and every quote is itemised so it can be shared with leaseholders. Work is phased around residents, using long-life systems such as single-ply, mastic asphalt, EPDM and built-up felt.

1960s block of flats with scaffold and edge protection while its flat roof is replacedComputer-generated example image
Guide price
£13,700–£23,950
Survey
Free for new and replacement roofs
Quote
Fixed, in writing
Coverage
England, Wales, Scotland, NI

County Down at a glance

Largest towns
Bangor, Newtownards, Newry, Banbridge
Postcode areas
BT
Building control
Ards and North Down Borough Council, Newry, Mourne and Down District Council, Armagh City, Banbridge and Craigavon Borough Council and 1 other council
Neighbouring areas
Belfast · County Antrim · County Armagh · County Tyrone
Guide price region
Northern Ireland (−12% on West Midlands rates)

How much does a block or HMO roof cost in County Down?

Guide prices including VAT at Northern Ireland rates. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Block of flats (150 m²), felt + insulation + scaffold£13,700–£23,950
Commercial roof (100 m²), single-ply + insulation£11,650–£19,150

Which flat roofs are common in County Down?

Flat roofs in County Down sit on newer estates where the first extension roofs are now being replaced, terraced streets with flat-roofed rear kitchens and bathrooms and low-rise post-war blocks of flats. Northern Ireland averages roughly 1,150 mm of rain a year, spread over many wet days, so a roof that sheds water quickly to clear outlets lasts far longer than one that holds puddles. Approximate 1991–2020 regional averages based on Met Office data.

Building control in Northern Ireland

In Northern Ireland, renovating or replacing a roof over a heated room usually means meeting Technical Booklet F1, and building control should be contacted before work starts. Technical Booklet F1 sets roof insulation at 0.18 W/m²K when a roof over a heated room is renovated or newly built, where feasible. In County Down the application goes to Ards and North Down Borough Council, Newry, Mourne and Down District Council, Armagh City, Banbridge and Craigavon Borough Council and 1 other council. More on the rules.

How do you manage access and residents during the work?

We agree an access and communication plan with the agent or freeholder before the scaffold goes up, so residents know what is happening and when.

That usually covers notices in the common parts and letters to each flat, scaffold and skip positions, keeping entrances, escape routes and bin stores clear, working hours, securing the scaffold out of hours, and a named contact for questions. If we need to look at a ceiling inside a top-floor flat, we arrange access through the agent or landlord.

Occupied blocks are re-roofed in phases, with each section watertight before the team leaves site, which also lets a larger roof be spread over more than one service charge year. Hot works near windows, vents and escape routes are tightly controlled, or avoided altogether with cold-applied systems.

Which towns in County Down do we cover?

Flats, HMOs and block roofs in County Down: questions

Which towns in County Down do you cover?

All of County Down. The main towns have their own pages below, and if yours isn't listed we still cover it: send your postcode and we'll confirm.

How much does a block or HMO roof cost in County Down?

£13,700–£23,950 for a 150 m² block-of-flats roof in felt with insulation and scaffold, at Northern Ireland guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Which council handles building control for a flat roof in County Down?

It depends on where the roof is: in County Down that's Ards and North Down Borough Council, Newry, Mourne and Down District Council, Armagh City, Banbridge and Craigavon Borough Council and 1 other council. In Northern Ireland, renovating or replacing a roof over a heated room usually means meeting Technical Booklet F1, and building control should be contacted before work starts. We confirm which applies at the survey.

Do you work for HMO landlords?

Yes. We replace and repair flat roofs on HMOs and converted flats, arrange access with tenants through the landlord or agent, and keep escape routes and entrances clear while we work.

Do residents need to move out during a re-roof?

No. Block roofs are normally replaced with residents in place, and if we need to check a ceiling inside a top-floor flat, access is arranged through the agent or landlord.

Can you quote for more than one roofing system?

Yes. We can price two or more systems on the same scope, for example built-up felt and single-ply, so leaseholders and the freeholder can compare cost against expected service life.

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