GRUNER AG is a provider of products and services such as building contractors, passive houses,thawing contractors, civil engineering and building site,repair, restoration and renovation contractors for concrete,sand-blasting contractors, civil engineering and building industry,culvert installation contractors, post-construction, road and railway,fire-fighting installation contractors for harbours and marinas,formwork contractors for prefabricated and specialised structures,chimney inspection services, closed circuit television (cctv),cooling tower design and construction contractors, brick or concrete,auxiliary services, chimney construction,prefabricated buildings consultants,building estimating consultants,heating, ventilation and air conditioning (hvac) consultants,building renovation consultants,building refurbishment consultants,high building structures consultants,office technology engineering consultants,computer room building consultants,load bearing brick structure consultants,load bearing metal structure consultants,load bearing timber structure consultants,ecological building and construction engineering consultants,clean room and controlled environment consultants,explosion damage to buildings, inspection and assessment consultants,power utilisation consultants,structural and load bearing statics, consultants,civil engineering and public works consultants,road and motorway engineering consultants,bridge, viaduct and tunnel engineering consultants,railway and tramway construction engineering consultants,sports complex design consultants,atomic shelter engineering consultants,building engineering consultants,building materials consultants,water supply engineering consultants,district heating systems engineering consultants,structural restoration and underpinning consultants,demolition and blasting engineering consultants,ice rink engineering consultants,shooting range construction engineering consultants,large span structure consultants,chimney construction engineering consultants,engineering - industrial contractors,mining engineering consultants,aerated concrete plant construction engineering consultants,hydroelectric engineering consultants,cement plant construction engineering consultants,dam and reservoir engineering consultants,planning and scheduling consultants for industrial plant,metal ore extraction industry consultants,combined heat and power system consultants,thermoelectric power station engineering consultants,steam power consultants,cooling tower engineering consultants,fabricated steelwork design consultants,refractory engineering consultants,pile driving consultants,hydrological, hydrographic and estuarial silting consultants,heat exchanger consultants,airport construction engineering consultants,cathodic protection of pipelines engineering consultants,embankment and barricade construction, river and lake, engineering consultants,harbour and dock engineering consultants,airport consultants,fibre optics installation contractors, telecommunications,private telephone system installation contractors, commercial and industrial,transmitting tower (telecommunication) construction,quantity surveyors, building,holding companies, industrial,holding companies, financial,equipped offices and industrial premises - services,soil analysis services and advice,insulating materials, bitumen and asphalt,water infiltration proofing compounds, bitumen and asphalt,piles and pier footings, concrete,concrete, ready-mixed,bitumen for roadworks,bitumen emulsions,bitumen, liquid,bitumen powder,sealing compounds, synthetic resin,sealing compounds, rubber,sealing compounds, thiocol and silicone base,sealing compounds, intumescent,sealing compounds, odourless,sealing compounds, water-repellent,sealing compounds for the food and beverage industry,sealing compounds, mineral fibre encapsulation,sealing compounds, modified silane (ms) hybrid polymer based,sealing compounds for jointing materials,sealing compounds for radiators,sealing compounds for gaskets,thread sealing and locking compounds,bonding agents, high strength, for building materials,jointing compounds, synthetic resin,jointing compounds, plastic, non-setting,jointing compounds, acid resistant,jointing compounds, petrol and oil resistant,jointing compounds for casks,jointing compounds for couplings,jointing compounds for flanges,jointing compounds for expansion joints,jointing compounds for electrotechnical use,putties, anti-corrosive,putties, high temperature resistant,putties, heat insulating,putties, sealing,putties, adhesive,putties, glaziers',putties for marble,putties for metal,putties for wood,putties for electrotechnical applications,filling compounds, epoxy based,fillers for putties,coatings, bitumen or coal tar based,sand and gravel silo construction engineering consultants,anchorage and fastening system consultants, for prefabricated construction elements.