Related by context. Frequent words. (Click for all words.) 72 retrofitting 65 retrofit 62 retrofits 52 refurbishing 52 retrofitted 52 refurbishments 51 upgrading 50 refitting 50 renovating 49 refurbishment 46 installing 45 installing solar panels 45 remodeling 45 upgrades 45 boilers 44 renovation 44 sprinkler systems 44 renovations 43 insulation 43 rainwater harvesting 43 replacing 43 upgrade 42 remodel 42 reusing 42 redesigning 42 Upgrading 42 refit 41 refurbished 41 rewiring 41 grandfathering 41 constructing 41 HVAC 41 install solar panels 41 modular 41 water heaters 40 remodels 40 geothermal heating 39 refurbish 39 redecorating 39 soundproofing 39 Energy Efficiency 39 remodeled 39 tiling 39 preventative maintenance 39 redoing 39 Renovation 39 installation 39 smart metering 39 Installing 38 repairs 38 refinishing 38 Energy Efficient 38 renovate 38 efficiency 38 environmentally friendly 38 renovated 38 ENERGY STAR qualified 38 buildings 38 efficient 37 reconfiguring 37 mothballing 37 repainting 37 equipping 37 reduce carbon emissions 37 refitted 37 ENERGY STAR 37 repairing 37 modernization 37 asbestos abatement 37 LEED certified 37 modernizing 37 fluorescent lighting 37 water heater 37 LED lighting 37 Renovations 37 updating 37 cabling 37 redesign 37 building 37 electrification 36 sprinklers 36 smart grids 36 plumbing fixtures 36 furnaces 36 demolishing 36 wiring 36 saving 36 weatherization 36 reuse 36 electrics 36 double glazing 36 LEED certification 36 upgradation 36 reconfiguration 36 chillers 36 boiler 36 phasing 36 reworking 36 cogeneration 35 smoke alarms 35 designing