24/7 Emergency Repairs Mallard Underground provides 24/7 Emergency repair services for underground:Water mainsPipelinesSewer mainsContact Us: (281) 840-2814 List of Services Storm SewerSanitary SewerPipelinesWater mainsFirewater mainsLift stationsDetention & Rainwater Harvesting Water taps, Meters and BackflowsBoring and TunnelingRepair of existing facilitiesAsphaultConcrete PavingDemolitionStructural retaining walls / head walls Subscribe and get updates on our Services Sign up with your email address to receive news and updates. Email Address Sign Up Thank you!