Frequently asked questions 


Where are you based?

We are a family run business from Upper Ballinderry just outside Lisburn.

What areas do you cover?

The areas that we provide our services are Co.Antrim, Co.Armagh & Co. Down

Are your employees trained?

All of our employees receive periodic training and hold valid CSR cards.

Are you insured?

Yes, we are fully insured with the relevant insurances including public & employers liability.

What are the payment options?

We accept cash, cheque and bank transfer. Unfortunately we do not accept debit or credit card payments.

Do you offer guarantee on your work?

Yes we do offer a 3 year guarentee on our residential surfacing, however it is subject to terms and conditions. For the guarentee to apply the driveway requires to be a full overhaul including new edging / kerbing a 60mm depth base course and a 40mm wearing course. We do not accept any responsibility for dry steering and heavy beaking on new suface as it can cause damage.

Surfacing Questions

What are the different types of tarmac?

Commonly used in the UK are asphalt concretes (previously termed ‘bituminous macadams’ or ‘bitmacs’), hot rolled asphalts (HRAs), and stone mastic asphalts (SMAs). Asphalts can further be grouped into road base, binder and surface courses, each providing a different function in flexible pavement construction.

What depth do you lay surfacing materials?

This can vary depending on the site. As a rule of thumb however, the depth should be at least 4 times the dimension of the largest nominal size in the mix for surface course (i.e. 40mm depth for 10mm asphalt concrete); and at least 2.5 times the dimension of the largest aggregate size in the mix for base and binder courses (i.e. 50mm for 20mm asphalt concrete).

Do I need to install new edging?

Yes, laying any surfacing material without edging is running the risk of failing. Edging provides protection against the edeges of the surface cracking and coming away from the rst of the driveway.

How long to do i need to stay off freshly laid surface?

Generally 24 hours would be sufficient but we recommend 48 hours if possible to let the surfacing material set properly.

What precautions do I need to be aware of and take with freshly laid driveway?

When used to construct driveways, it is recommended that cars are moving when the wheels are turned. If a car is stationary when the wheels are turned (particularly with modern power steering), the asphalt can be displaced and scuffed by stresses applied at that particular point. It is also recommended that (wherever possible) vehicles are parked in different positions to avoid marking the asphalt, and fuel spillages are kept to a minimum. If any of these precuations or not taken it will void any gaurentee.

What plant machinery is used to lay tarmac?

This depends on if the area is to be hand laid or machine laid. Most driveways will be hand lay and will require a vibrating wacker plate with water depenser aswell as a twin drum vibrating roller. If it is machine lay it will require a specialist paving machine aswell as twin drum rollers.

How long will it take?

This depends on the size of the project it could take anywhere from a few hours to a week it all comes down to how much preperation work is involved. Does it need excavated, edged, drainage installed and other things affect the amount of time it will take.

Groundwork questions

How do you deal with unmarked services?

We scan all dig sites with scanning equipment to locate any services that might be unmarked or not known before any excavation work starts.

Do you take away any spoil or harcore that you excavate?

Yes we provide our own trucks to remove any waste from site. We try to recycle as much as possible so anything that can be recycled will be. This includes soils and any hardcore we excavate.

Can you install drainage?

We can install any type of drainage from foul and storm to land drain in farmers fields.

Do you install road kerbs on building sites?

Absolutey, we can install any type of kerbing on building sites, driveways, carparks and forecourts.

Can you build a road or laneway for scratch?

Yes, we do provide all the excavation, kerbing and drainage that a roadway may require.

Do you have your own plant machinery?

We do have our own plant including excavators, compaction equipment and truck. If any job require a piece of equipment that we dont have we can source that equipment and get it on site.

"Really great job really quick workers, Five stars I'll be recommending to everybody."

Juris Silis

Get a free estimate! In need of surfacing or groundworks in Belfast or surrounding areas? Call Now: 07802796400

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Gilmore Groundworks: Surfacing & Groundwork contractors

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