Your thermostat is the brains of your HVAC system, so thermostat replacement in Walnut Creek, CA, is best handled by professionals like the knowledgeable HVAC technicians at Environmental Heating & Air Solutions. When your thermostat starts to go bad, it makes it difficult for your furnace or AC to provide you with your preferred interior temperatures. If this happens, it’s time to schedule a professional thermostat installation if you want to restore your control over the climate in your home. But a faulty thermostat isn’t the only reason you should consider replacement.