Concrete contractors in Monaghan
Concrete slabs, foundations, power floated floors, bases and yards across Co. Monaghan, from Monaghan to the farms: a floor slab at least 150 mm on 200 mm of hardcore, foundations to the engineer's drawing.
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- 149one-off houses finished in Co. Monaghan in 2025 (CSO)
- 4,478farms (CSO)
- 5%of homes tested over the radon reference level (EPA)
- 2,182heating degree days at Monaghan
What's being built in Monaghan
315 new homes were finished in Co. Monaghan in 2025: 149 one-off houses, 141 scheme houses and 25 apartments (17th of 26 counties for one-off houses). 65% of all homes in Monaghan are detached.
One-off houses mean foundations on open ground. The engineer looks at the ground first: strip footings on good ground, trench fill where the sides won't stand, a raft where it's soft. Then a ground floor slab of at least 150 mm on at least 200 mm of compacted hardcore. See concrete foundations.
Yards and farm slabs in Monaghan
The CSO counts 4,478 farms in Co. Monaghan, more than most counties. Yards, slatted sheds, silage slabs and calving pens are built to the Department of Agriculture's S.100 specification, with thicker slabs, a stronger mix and falls to the drains. A yard that takes a loaded tractor is a different pour from a garage floor. See yards and farm slabs.
Radon under the slab in Monaghan
5% of the 372 homes the EPA has measured in Co. Monaghan were at or above the radon reference level of 200 Bq/m³, below the national 14% (21st of 26).
Under a ground floor the layers go: hardcore, blinding, the damp-proof membrane joined to the wall DPCs, and in a High Radon Area a radon barrier sealed over the whole footprint with a sump under it. A radon barrier has been required in High Radon Areas since 1 July 1998, and every house since then needs a standby sump.
Winter pours in Monaghan
Monaghan has about 2,182 heating degree days a year, our calculation from Met Éireann's 1991 to 2020 averages: a colder, longer winter than the middle of the 26 counties (2nd coldest).
Concrete has to stay above 5°C for its first 48 hours, until it's strong enough to take a frost. Winter pours are planned round the forecast, with frost blankets on the slab and no concrete on frozen ground. See how long concrete takes to cure.
Floors laid by the contractor who takes your call
Calls on this site ring JAM Floor Screeding: James Mulhall, based in Portlaoise, 25 years laying floors. Lines open Mon to Sat, 7am to 6pm. He pours concrete floors, slabs and foundations as well as screed. These are his jobs.
“JAM were punctual, professional and efficient and did an outstanding job on pouring our new floor as part of a renovation. Very highly recommend!”
“Excellent work, laser level finish, neat and tidy worker, highly recommend.”
“Top class work by james and his crew, highly recommend”
Quoted word for word from JAM Floor Screeding's Google reviews. Read them on Google
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Monaghan questions
Do you cover all of Co. Monaghan?
Yes: Monaghan, Carrickmacross, Castleblayney, Clones, Ballybay and Emyvale and everywhere in between. Send the job and one concrete contractor who covers your county rings you.
How much does a concrete slab cost in Monaghan?
A slab is priced per m² and a foundation per metre, for your job: the area and depth, the concrete grade, the steel, access for the truck and what's under the slab. Send the job and you get a written price.
Does a new slab in Monaghan need a radon barrier?
In a High Radon Area, yes, sealed over the whole footprint with a sump. 5% of homes measured in Monaghan were over the reference level.
Can concrete be poured in a Monaghan winter?
Yes, with planning: not on frozen ground, kept above 5°C for the first 48 hours, and covered against frost.
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