Churchill Specialist Contracting Brochure 2019

STEEPLEJACK EARTHING STRUCTURAL SERVICES & LIGHTNING MAINTENANCE www.churchillsc.co.uk

CONTENTS Steeplejack Services Lightning Protection Earthing Concrete Repair Waterproofing Building Maintenance Chemical Linings

A family owned business since 1994, Churchill Specialist Contracting has grown from its humble beginnings in the Steeplejack industry to a multi skilled organisation able to offer a professional service for a wide range of clients in numerous disciplines. LRQA accreditation is held for ISO 9001, 45001 (OHSAS 18001) and 14001, together with an extensive SSIP portfolio including Construction Line Gold status. In addition, our workforce is directly employed and long serving. Huge investment year on year in training ensures formal health, safety, trade and technical qualifications are always current and are well represented throughout both the workforce and management team. Further investment in the Hilti On Track electronic platform for all plant maintenance, certification and calibration together with the whole of our workforce’s qualification certificates, means that any documentation needed on site at any time can be displayed on any smart phone. Our commitment to industry is demonstrated by continuous membership of our federation ATLAS, and our training group SLPTG, throughout Churchill’s lifetime. Representation on both Councils has seen us heavily involved in many industry initiatives including industry guidelines and training requirements. Welcome to Churchill. www.churchillsc.co.uk

STEEPLEJACK SERVICES History sees the traditional Steeplejack Capable of using modern and unique access inspecting, maintaining, and solutions in a safe and controlled manner, real dismantling industrial chimneys. The value can be engineered into a project involving 21st century demands much more, and work at height. Today, the skills of a steeplejack today’s Steeplejack is a multi-skilled have the potential to significantly reduce the high-rise technician who is capable of requirement for man hours spent erecting almost every type of work required at traditional scaffold or employing powered access, height, either above or below ground. greatly reducing cost, improving efficiency and most importantly reducing risk. Services offered by our highly qualified and directly employed workforce include: Centrally located, Churchill Specialist Contracting cover the UK mainland with a highly qualified • Inspections and surveys directly employed workforce pooled from all areas • Maintenance and repair of the UK. This enables us to provide a cost- • Demolition effective nationwide service. • Chimney design, manufacture & We have completed a huge volume of installation high-profile contracts and have accumulated a • Rescue from height wealth of experience in the controlled dismantling • Confined space & demolition of tall structures located in sensitive • Sign installation • Appointed person lifting • Underground shaft & tunnel inspection • Bridge inspection CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS

• Rope access • Suspended platforms • Hot works • Confined space high risk SUPPORTING INDUSTRY and restrictive environments. Churchill were at the forefront of promoting All our steeplejacks possess an industry NVQ the use of large truck mounted MEWP’S to qualification which confirms their individual facilitate access for the purpose of inspecting skill level, complimented with additional skills industrial chimneys. qualifications including scaffolding, welding, appointed person, brick laying, plant & machinery This innovation helped bring around a major operators & Non-Destructive Testing (NDT). In step change in the steeplejack industry and addition, our ongoing commitment to safety encouraged others not to simply default to training and culture are second to none. traditional steeplejack access ladders and instead apply the Hierarchy of Control and consider HIGH RISK ACTIVITIES alternative methods of access, particularly when inspecting industrial chimneys. As an active member of our industry federation ATLAS , (the Association of Technical Lightning and Access Specialists) Churchill have made a major contribution to various ATLAS publications and guides aimed at improving safety and formalising access and inspection techniques used in our unique working environment. Working at height creates its own risks which are managed with meticulous planning, training and supervision. Often exposed to high risk challenging working environments within the petro-chemical, nuclear and steelworks industries the need for thorough planning becomes a fundamental requirement to ensure projects are safely delivered in accordance with the Construction Design and Management Regulations. Our in-house team of NEBOSH and IOSH professionals become the focal point at pre-construction stage, assessing the risks and implementing control measures associated with a multitude of tasks often undertaken by our workforce which include: • Mobile cranes/lifting • Ground positioned and top mounted winches/lifting • Scaffolding • Welding CELEBRATING CELEBRATING 1994 2019 1994 2019 www.churchillsc.co.uk | 0844 5049998 YEARS YEARS

LIGHTNING PROTECTION Lightning protection is built into the Churchill Specialist Contracting offer the full majority of electrical specifications range of lightning protection services including our for new build projects. The primary unique on-line shop. risks identified by BSEN 62305 are, All our design staff are accredited in all four parts “loss of human life” and “loss of of BSEN62305 via ATLAS, The Association of service to the public”. Technical Lightning and Access Specialists. All are trained in the use of industry specific software to Lightning Protection Systems take many carry out the initial risk analysis and receive regular forms, but all can be broken down into six additional in house and external technical training main categories: to keep them current. In today’s commercially sensitive environment it pays • An air termination network to receive to be wary of those who repeatedly default to a Level the strike 4 class of protection every time. It may be that the structure is inadequately protected, and safety and • Bonded connections to items of quality have been compromised for commercial gain. exposed metalwork to equalise We always aim to provide the most economical earth potential and prevent lightning protection solution available with dangerous flashover consideration for client specific requirements • Down conducting paths to carry the www.churchillsc.co.uk | 0844 5049998 discharge from the air termination network to earth • An Earth termination network to offer a low resistance physical connection to the general mass of earth • Surge protection devices (SPDs) to reduce the effect of transient overvoltage’s entering a structure through its ‘services’ either from a direct or indirect strike • Annual test inspection and maintenance. CELEBRATING CELEBRATING 1994 2019 1994 2019 YEARS YEARS

and compliance with BSEN62305. Levels, or classes of protection, range from 1 You can always expect a competitive quotation to 4 (level 1 being the most stringent) and are without the ‘small print’. dependent on a wide range of factors including, the lightning ground flash density, the size Alternative Lightning Protection solutions using ESE and configuration of the structure, its location, Devices (early streamer emission) are often called construction, the number of occupants, its usage for. This service can be provided, but it should be and incoming/outgoing services. noted ESEs are not recognised BSEN62305. In addition to structural protection, all services Test, inspection and maintenance are entering or leaving a structure, and from any recommended annually. roof mounted equipment, must be provided with suitable surge protection devices (SPDs). This The effectiveness of the Lightning Protection typically includes the main supply, power to roof System can be reduced over time due to physical mounted equipment, telephone and data cables, damage, corrosion, adverse weather conditions, CCTV, pv arrays and remote structures fed or as a result of alterations to the building. Earth separately from the main distribution board. electrode resistance values can also fluctuate adversely over time. BSEN62305 is based on four principle risks. The correct level of Lightning Protection is then applied BS62305 - AN INTRODUCTION to reduce those risks below set tolerable levels. • R1 – Loss of human life • R2 – Loss of service to the public • R3 – Loss of cultural heritage • R4 – Loss of economic value In most cases only R1 and R2 are considered. If occupied at any time, risk R1, loss of human life always applies. R2, loss of service to the public, applies to structures such as hospitals, data centres, education, military and government establishments for example, and calls for further SPDs as coordinated surge protection which is a second line of defence protecting crucial electronic equipment within different zones of a structure. The current British Standard for Protection Against Lightning is BSEN 62305 in four parts. • Part One – General principles • Part Two – Risk management • Part Three – Physical damage to structures and life hazard • Part Four – Electrical and electronic systems within structures A detailed risk analysis calculation is needed to establish a level of protection. CELEBRATING CELEBRATING 1994 2019 1994 2019 www.churchillsc.co.uk | 0844 5049998 YEARS YEARS

EARTHING Often referred to as Electrical Earthing, Churchill Specialist Contracting have a wealth of Power Earthing or Grounding, the basic experience in Electrical Earthing and are able to principle of any earthing system is to offer a full range of services from the initial design protect life and prevent injury which stages through to commissioning. may be caused by electric shock. With a growing portfolio of major earthing Past projects and work types successfully projects, we have a workforce qualified and delivered include: trained to National Grid standards including temporary earth bonding. It is essential to • London power tunnels safely bridge out joints and connections where an intact ‘live’ earth system is being repaired or • Numerous major new build Energy upgraded with additional earthing. Formally the Recovery Facilities National Grid NSI24 qualification, this is crucial to safety when working within an energised, or part • HV & LV Earthing, Static Earthing, energised power generation plant or substation. and Lightning Protection for major top-secret military facilities Silfos brazing or exothermic welding of copper to copper joints with a continuity test to • Antistatic Earthing for major a millionth of an ohm using specialist equipment manufacturing plants is standard practice. So too is our capability to • DNO Earthing systems • Private Generation Plants for industrial clients • Wind Farm Earthing • Soil Resistivity Testing and Earthing Design • Annual test inspection and maintenance of earthing for power generation sites including full fall of potential slope testing. CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS

provide and interpret a full fall of potential slope correctly designed connection to earth under fault test for large earthing systems. conditions to keep us safe. A similar philosophy is used in providing In addition to offering a competitive service with anti-static earthing in potentially explosive a highly skilled workforce, Churchill’s ongoing environments and grounding points for aircraft commitment to its safety training and culture are maintenance and refueling. second to none. Joints in conductors can be exothermically welded, brazed, clamped or crimped, depending EARTHING - AN INTRODUCTION upon circumstances and specifications. Continuity of all joints should be tested to a A correctly designed and installed earthing system millionth of an ohm using a micro ohm meter, ensures the safe operation of protective devices typically the Megger DLRO 10. under electrical fault conditions and, where applicable, also guards against the dangers from DESIGN AND TESTING touch and step potential. Testing the MES in accordance with BS7430 and An earthing system could be as simple as a single BSEN50522 is carried out by the fall of potential earth electrode driven into the ground, or as method. Single electrodes or small earthing complex as an underground grid of conductors arrangements are tested using the 61.8% method, covering thousands of square metres incorporating more complex earthing systems require the slope hundreds of connections to pile foundations, slab method which can involve taking readings up to reinforcing bar, steel columns, equipment plinths 1000m from the MES using specialist equipment. and plant. This is commonly termed the ‘MES’, the The starting point of the design phase is the Main Earthing System. Wenner soil resistivity survey to gather the accurate resistivity of the ground strata. Using this Above ground earthing is generally provided by and a whole host of other factors, specialist earthing strategically placed bespoke earth bars, or special software, CEDEGS, provides a comprehensive connection points interlinked by secured cable report and bespoke layout for the earthing system. or tape conductors. These conductors are then A competitive quotation for supply, installation and provided with a dedicated path back to the MES. commissioning of the MES is then produced. This ensures all items of metalwork are at the same electrical potential and have a dedicated, www.churchillsc.co.uk | 0844 5049998 CELEBRATING CELEBRATING 1994 2019 1994 2019 YEARS YEARS

CONCRETE REPAIRS AND STRENGTHENING Churchill Specialist Contracting provide Concrete is a versatile material and widely cost effective solutions for the repair used in the construction of high rise buildings, and maintenance of all types of concrete bridges, bunds, tanks and reservoirs. structures. We provide national coverage with our multi skilled highly trained and TYPES OF DETERIORATION directly employed workforce. Natural deterioration occurs in normal Churchill carry out the inspection, testing and atmospheric conditions. Carbon dioxide in the provide remedial solutions for the repair and air and other mild contaminants, slowly reduce refurbishment of concrete structures across the Ph of the concrete. This is known the private and public sectors including: as carbonation. • Concrete condition surveys Carbonation of concrete allows moisture (rope access) and oxygen to enter the material resulting in corrosion of the embedded reinforcement • Concrete testing seriously weakening the structure and introducing hazards from collapse or falling • Remedial specifications and solutions debris and spalling. • Concrete repairs of buildings, bridges, bunds and containment tanks • Installation of both galvanic and impressed current cathodic protection systems • Surface preparation – abrasive blasting, dust free sponge blasting and high-pressure water • Anti-Carbonation and chemical resistant coating systems • Design and installation of carbon fibre (CFRP) plate and wrap for the strengthening of concrete structures. CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS

HIGH RISK ENVIRONMENTS Other forms of concrete deterioration are Our directly employed workforce are trained in chloride ion induced corrosion, sulphate high risk confined space entry and rescue with full and acid attacks, alkali–aggregate reactions, BA to the City and Guilds standards, should this impact damage and fire damage. be required. SPECIALIST ACCESS AND SURVEYS Coupled with our ability to provide specialised access solutions at height, our operations can be carried out in any environment. Risks are managed effectively and safely by thorough planning and extensive training. Churchill’s ongoing commitment to safety training and culture are second to none and have a proven track record providing the full range of services required for the inspection, testing and remedial repair of all types of concrete structures. Our expertise ensures the correct solution and specification are delivered every time. Our services and skills are often called upon by independent structural engineers in order to accurately assess concrete structures. Our skills in working at height enable us to provide access solutions from rope access through to the design and installation of bespoke temporary working platforms and suspended cradles. Our in-house expertise in working at height and rope access enables us to carry out structural surveys and repairs avoiding costly and time consuming traditional scaffolding solutions. In every instance all loose and dangerous material is removed from the structure. All defects are then quantified and qualified in the form of a detailed report highlighting the structures condition at the time of survey. Following the initial assessment stage, a bespoke remedial repair solution is provided based on the desired design life of the structure and client specification. CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS

STRUCTURAL WATERPROOFING AND LEAK SEALING Churchill Specialist Contracting have New construction of basements, lift pits and the a wealth of experience in the field of like, often suffer from areas of water ingress. injection leak sealing using both high and low viscosity polyurethane resins This is mainly due to poorly compacted materials, and polyacrylic gel products. displacement of the water bar within construction joints, and cracking caused by movement or Leak sealing, waterproofing and ground settlement of basement and pit walls. stabilisation are essential services that relate to both new construction projects as well as The solution, using specialist high and existing structures, tanks and basements. low-pressure injection pumps, is to deliver Churchill offer solutions for the following: polyurethane and acrylic resin materials through high quality injection bore packers straight to • Lift shafts, basements and tanks the heart of the problem providing a permanent water tight finish. • Clean drinking water reservoirs POLYURETHANE INJECTION • Sub terrain environments and canal banks Our polyurethane materials are ideal for wet or dry surfaces and moving or live cracks with an • Brick arches, bridges, sub-ways and tunnels • Chemical bunds and effluent tanks • Ground stabilisation • Leak sealing of manholes and chambers • Leak sealing to Secant and Sheet Piling excavations • Basements and residential areas CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS

REDUNDANT SERVICES AND STABILISATION extremely low viscosity for superior penetration in Other polyurethanes within our range include hairline crack injection. hard foam plastic BV which is used to back fill redundant underground services including The cure time can be controlled allowing the sewers, services and the stabilisation of industrial material to set slowly or extremely quickly where floors and roads. larger volumes of water require arresting. The hard foam is proven to be quicker and Polyurethane reacts in contact with water to cleaner than more traditional methods. Cement become a semi flexible foam expanding its based grouts create dust and are a highly alkali volume 30 to 40 times. The cured material is of product, which is not always suitable especially a constant volume and does not shrink or swell. when there are environmental considerations. The rigidity of the material can be controlled. For best waterproofing results a closed cell structure This innovative system has the added benefit of is desired. providing a cured strength of 30Kn, which on average is more than double that achieved when In addition to sealing water leaks, polyurethane using traditional flowable cementitious grouts. is ideal for use in cutting off gushing water, filling voids, cracks and honeycombing in stone or Unlike cementitious grouts, the hard foam operation concrete structures. is self-contained in the site delivery vehicle and offers an all-round environmentally friendly solution Where the soil conditions are correct, it can also with no disruption or cleaning required. be applied as a non-shrink, high strength soil stabilization grout. All equipment delivery hoses, generators and materials are contained within their own bunded Churchill specialise in providing access solutions areas on the vehicle. at height. Our highly skilled and directly employed workforce allow us to carry out This allows the vehicle and equipment to be our operations in any environment. placed at the works location and within an hour of being on site the void filling can be underway. CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS

BUILDING MAINTENANCE AND REFURBISHMENT Working in partnership with Housing Building Maintenance and Refurbishment by Associations, Facility Management its very nature covers a multitude of trades and Companies and under Framework disciplines. In today’s construction environment Contracts, Churchill maintain and the majority of contractors rely on sub contract refurbish domestic, commercial and labour to deliver on their behalf. industrial structures. Churchill are different. We directly employ a workforce which are competent and highly The level of refurbishment services qualified over the range of multiple skills required and maintenance support we offer are to deliver the services shown. Ongoing technical included below: training, health and safety updates and behavioural safety awareness are standard practice. • Brick work, retaining walls, garages, With NVQ trade qualifications as standard all and stitching repairs our directly employed site employees carry the CSCS blue skills card for their relevant trade. • Helifix crack repairs, bow ties and Our range of trade specific employees include chemical anchor restraints Bricklayers, Plasterers, Joiners, Decorators, and Civils/Ground Workers. • Internal refurbishment and fit out including; new partitions, kitchens, www.churchillsc.co.uk | 0844 5049998 bathrooms, plastering, decorating and joinery work • External wall tie surveys and remedial wall tie installations • Ground stabilisation and underpinning using Helifix Micro piles and polyurethane technology • Balcony waterproofing and liquid roofing systems • Asbestos roof sheeting encapsulation using liquid rubber seamless coatings • Liquid applied roofing systems CELEBRATING CELEBRATING 1994 2019 1994 2019 YEARS YEARS

developed through over 25 years of experience, Churchill provides a tailored and efficient service to all projects. Our expertise extends from working with residents in occupation, through to major estate regeneration. The work carried out within occupied homes requires careful consideration of the needs and individual requirements of residents and their communities. Our project delivery team therefore shape the service required, meeting residents’ expectations and delivering our usual high standards. For every client we establish a strict customer care protocol to ensure minimal disruption to residents, along with clear methods of communication. TRAINING AND SAFETY Supervision for our site teams is managed by SMSTS or SSSTS trained personnel depending on the size of the project. All site teams have a trained first aider on site at all times and site specific detailed working method statements and risk assessments are produced in line with our LRQA accredited, SHEQ Management procedures. With such a close knit, competent and cooperative workforce, working in areas where tenants and resident’s individual needs require careful consideration is managed professionally and with courtesy. Daily pre-commencement risk assessments, point of work risk assessments and end of day completion checks, along with regular site audits and inspections by our contracts managers and health and safety representatives, ensures the highest standards of quality and health and safety are maintained throughout the works. WORKING WITH THE COMMUNITY With an understanding of the social housing refurbishment and maintenance market CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS

CHEMICAL LININGS AND COATINGS Churchill Specialist Contracting provide Many production and manufacturing sites and apply specialist anti-static, chemical produce, store and dispose of liquid chemicals. and fire-resistant coatings for tanks, From heavy production within food and beverage bunds, floors and buildings. manufacturing to power generation, petrochemical and clean and dirty water management. The supply and install of specialist epoxy and polyurethane coatings is essential for LEGISLATION the containment of fluids and the protection of concrete structures from chemical attack. Extract from The Environment Agency: Pollution Prevention Guidelines PPG5: Our systems can withstand the full Ph range from acidic or alkali. Churchill offer solutions “Make sure fuel, oil and chemical storage on for the following: site is secure. Sit the storage on an impervious base within a secondary containment system • Bund Tanks such as a bund. The base and bund walls should be impermeable to the material stored - Oil and able to contain at least 110% of the volume stored.” - Gas - Effluent - Chemical • Process areas, floors and work stations • Manholes, wet wells and digesters H2s resistant • Chemical waste gullies and clean down areas • Steel tanks and vessels • Fully trained high risk confined space and rescue teams CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS

OUR SOLUTION New regulations and legislation have Individual facilities handle chemicals with varying increased the liability on the chemical users pH ranges. Churchill provide and install specialist and transporters. bund, tank and vessel lining systems that are capable of resisting the full pH range. They must take every precaution to minimise and prevent the accidental release of hazardous We have vast experience in the application substances into the environment. The protection of epoxy, polyurethane, vinyl ester and of life and the environment must be a primary cementitious silicate lining, acid and alkali concern for every facility owner, plant engineer, resistant coating systems. operator, and maintenance personnel. Many bund and storage vessels require The proper design, construction, and cleaning and repair prior to the application of maintenance of the secondary containment the chemical lining or coating. Churchill provide system within an industrial facility is paramount the full refurbishment service from cleaning and to containing leaks and spills from the primary disposal of waste, surface preparation, remedial storage tanks or vessels. repairs and strengthening through to the completed lining system. The main purpose of a secondary system is to contain the spill until it can be neutralised, Chemicals within the process industry offer many cleaned up, and disposed of properly. A challenges to essential infrastructure such as, secondary containment structure must be wear abrasion, chemical attack of concrete and designed with a high degree of chemical steel structures to name but a few. resistance to a lesser degree than that of the primary system. Many of these structures are located in difficult or restricted access. We specialise in providing Protecting the concrete with a chemical resistant access solutions at height. Our highly skilled coating or lining, is an economical way to protect and directly employed workforce allows us these structures. Before a lining or coating can to inspect, repair and install our protective lining be applied, the concrete must be evaluated to systems in any environment. determine its condition. CELEBRATING CELEBRATING www.churchillsc.co.uk | 0844 5049998 1994 2019 1994 2019 YEARS YEARS





General Enquiries [email protected] Steeplejack Services [email protected] Lightning Protection and Earthing [email protected] Structural Maintenance and Waterproofing [email protected] 0844 5049998 www.churchillsc.co.uk Churchill House, The Midway, Lenton Lane Industrial Estate, Nottingham, NG7 2TS.