Our Services

Safety, the environment and quality are at the heart of everything KLT Construction does. With over 20 years’ experience in the utility industry, KLT provides gas mains and service repair and replacement, cable and utility works, including waste haulage and reinstatement, along with support logistics and internal works.

Replacing ‘at risk’ gas mains and services for major providers such as Cadent Gas and Southern Gas Networks, KLT works for clients directly as well as on contracts, such as the North London Gas Alliances, SGN, tRIIO and the coalition. Clients include Skanska, Morrison Utility Services and Matrix Networks.

Gas Replacement Services

From dead insertion to directional drilling, KLT’s gas mains and service replacement services gives clients all the reassurance they need – currently scoring 100% on all aspects on the Achilles B2 verification.

Looking for a safety and customer-led contractor? Simply get in touch with our commercial team.

Vacuum Excavators

Used as an alternative to manual or mechanical digging, vacuum or suction excavation is a non-destructive method of working near or around utilities that eradicates the risk of damage to anything in the existing in-ground environment.

Quite literally ground-breaking, an internal fan generates an air flow of 50,000 (or more depending on the number of turbines) cubic metres per hour to congested ground. The machine uses an external suction hose, which moves via an hydraulically operated boom to remove ground up to 250mm in size, working from remote paddles. Although noisy, vacuum excavation reduces the need for excavators and potential utility disruption. The operator and teams also carry air lances with them, which assist the vacuum excavator in removing spoil from the ground, making it speedier and more effective compared to conventional excavation methods.

  • Clean and tidy removal of paving
  • Clean and tidy small excavations reduce surface impact and cost
  • Excavation around trees and shrubbery with no root damage
  • Gas-safe excavation

For more information or to obtain information on hiring vacuum excavators please contact us.

Mains & Service Camera Surveys

At KLT, we have several mobile camera operatives who use specialist cameras to look into the existing mains and services. These camera surveys provide location information for existing supplies and show the condition of the main and connection points. With this accurate information we can minimise the disruption while we renew or repair the Gas network.

Internal Works, Gas Fitters & Downstream Works

KLT ensure that all of their internal works engineers are Gas Safe Registered, verified, assessed and continually audited for our and your peace of mind

We will need access to your property on the morning of the introduction of the new mains and service pipes, this allows us to isolate your supply for safety reasons, when we have completed the external pipework we will need access again to restore and check your appliances (for example Cooker/Boiler/Fires) and general pipework, this is a free service, every aspect of the Gas operations work is carried out in line with strict policies and procedures which are available on line

The engineer will use various tools and equipment to conduct his works, these are all intrinsic, they will also use gauges to monitor and measure the status of the gas supply, If during the testing stage we identify an appliance that is unsafe or leaking pipework that is not compliant we will not be able to restore your supply and you may need to get an external resource at your own cost to rectify any issues outside of our safety checks

Our works do not cause faults so if you have an unknown underlying problem we are identifying this for you not creating it, please feel free to discus this with any of the engineering management or customer team

Our Engineers and management carry I.D cards for the gas network that they are working on, it is your prerogative to ask to see this, please do not let anyone access your property unless they can show you an in date, relevant I.D card and then call the number on the card to verify the user.

Haulage & Waste Management

KLT Construction is one of the leading and largest utility contractors in Southern England that delivers in excess of 4,500 metres of gas mains replacement and almost 500 services and associated works every week. This produces a lot of utility arisings which traditionally would have gone to landfill. This waste is becoming a large problem within the industry, and a big problem for the environment. KLT Construction however have been proactive and looked for innovative solutions to be able to counter these problems.

At present, traditional Recycling processes can recover between 45-50% of utility waste arisings in to a useable backfill product with the rest going to landfill. KLT Construction have found a solution which enables them to maximise their recovery rates and optimise recycling from this waste stream. KLT Construction are investing into a state of the art Recycling facility that utilises NFSMR’s (Non- Flowable Structural Materials for Reinstatement). The particular NFSMR that KLT will be producing, is produced using the SMR Eco proprietary Binder supplied by METSSL Ltd. The SMR Eco will allow up to 100% of the Utility Waste Arisings to be recycled. In addition to being able to recycle all the Utility Waste Arisings, the NFSMR structurally outperforms traditional reinstatement materials, such as virgin aggregates.

KLT Construction’s up and coming recycling centre supplies a range of recycled materials to the utility industry to help protect the environment and reduce their carbon footprint. This is achieved by efficient waste management processes and the use of the Proprietary Binder supplied by METSSL Ltd. The up and coming KLT Recycling Facility will act as a “One-Stop-Shop” for their works as all their utility arisings are tipped at the recycling centre, and all their backfill products are collected from the recycling centre. This also helps KLT achieve ‘Closed-Loop-Recycling’, a method that ensures high accountability, due to the fact that, the utility waste arisings that are excavated from the utility trenches are recycled and used back in the same utility networks/infrastructure in the local area. This method also has the added benefits of reducing: Lorry movements; Social disruption and Carbon Emissions. Carbon Emission reduction are a key target to enable London and surrounding areas to meet their air quality management targets.

Metssl’s SMR Eco Proprietary Binder provides a sustainable, superior recycling process and a subsequently higher performing product than traditional products. The SMR Eco product enables up to 100% re-use of the utility arisings to create sustainable stabilised capping, sub-base and base layers. The SMR Eco Proprietary Binder delivers geotechnical improvement through:

  • Improved compaction density
  • Improved workability
  • Improved shear strength

All of the recycled products are produced to the relevant specifications and standards, and deliver consistency in the quality of the provision of all materials. The Recycling Centre operates under a Waste Management Permit issued by the Environment Agency to ensure complete compliance with the Waste Regulations. KLT Construction is a registered waste carrier with a waste carriers license.


We provide reliable, efficient, safe and environmentally considerate reinstatement thanks to our modern equipment and KLT’s plant.

Our multi-skilled internal reinstatement department ensures that our works are reinstated without involving third parties, to ensure we provide the best possible service, without delays.

While it’s almost impossible to match old surfaces for new, as the old surface has aged, we use like-for-like materials and do our utmost to get as close as is physically possible to ensure the surface does not look out of place.

There are various surfaces reinstatement works on:

  • Paving/Slabs (sometimes known as Flags)
  • Block Paviours
  • Various tarmac surfaces, different sizes and grades, cold and hot lay
  • Concrete low lever (this needs to cure before the final surface)
  • Finished concrete
  • Printed driveways
  • Special surfaces
  • Walls
  • Fences
  • Edgings
  • Kerbs
  • Gulley’s and drains
  • In ground pipes

Specialists in a range of these surfacing techniques, KLT only uses qualified, competent, knowledgeable personnel to apply them. Our operatives, supervision and reinstatement managers are here to guide you throughout the process and ensure you are aware of each stage of the works. Feel free to contact them for a free telephone conversation or a face-to-face meeting.

Our reinstators and management carry I.D cards for the gas network that they are working on, it is your prerogative to ask to see this, please do not let anyone access your property unless they can show you an in date, relevant I.D card and then call the number on the card to verify the user.


Thinking about a career within the industry? Apply Today.


Our Accreditations