assistant: The specific job title of a person who can help you improve the energy efficiency of your residential building would likely be an "Energy Efficiency Consultant" or an "Energy Auditor". These professionals are trained in assessing the energy performance of buildings and identifying cost-effective measures to improve energy efficiency. They can provide you with a comprehensive energy audit report that includes recommendations for improving the energy efficiency of your building, estimating the potential energy savings, and calculating the payback period for each measure.

You can also contact a licensed contractor who specializes in building energy upgrades and retrofits, such as a "HVAC Contractor" or a "Building Performance Contractor". These professionals can provide you with a detailed proposal for the upgrades and retrofits recommended in the energy audit report, including the cost of materials, labor, and other expenses.

If you are looking for a more comprehensive solution, you may also consider hiring a "Sustainable Building Consultant" or a "Green Building Consultant". These professionals specialize in designing and building energy-efficient and sustainable buildings and can provide you with a comprehensive plan for improving the energy efficiency of your building, including the integration of renewable energy sources and other green technologies.

assistant: Since your in San Francisco you probably want an energy auditor.  They visually inspects buildings and related systems including mechanical, electrical, and process systems to determine energy consumption in each area or system. They prepare reports that can sometimes save you on your yearly energy bills.

You can find an up to data list of energy auditors on the SOMAH program website, but the top results is:

> Abraxas Energy Consulting
> Clayde Barkley
> 805-547-2050 
> smah@abraxasenergy.com 
> http://www.abraxasenergy.com
> *AEE Certified Energy Manager
> *Professional Engineer
> San Diego Gas and Electric (SDG&E® ), Southern California Edison (SCE® ), Pacific Gas and Electric (PG&E ® ), Liberty Utilities, PacifiCorp


In particular you may want to contact a few and use their listed contract details to ask for a quote. Be clear about what you want to achieve and provide as much building information you have to make it easier for them to give you a quote. You should include some initial information on the building like type, size, year, and so on and they may ask you for more in follow up questions.

The more information you give them the better their recommendations and the cheaper the job. If you provide them no information their recommendations will have little use unless they do an expensive site survey. You may want to find and prepare information on the building blueprints, design, modifications, and construction.

It's best if you can find reviews or get recommendations from a experienced friend as the price in only one point of comparison. You may consider asking the SOMAH hotline as it's managed by the government and there is some expectation that it will provide unbiased information. A residence association or building management firm may also be a good choice to ask as they are potential customers of energy audits.

assistant: A person who specializes in improving the energy efficiency of residential buildings is often referred to as a Building Energy Analyst, Energy Consultant, or Energy Efficiency Specialist. They would have the knowledge and experience to analyze your building's energy consumption data, identify areas for improvement, and recommend cost-effective measures to increase the building's energy efficiency. Some larger utility companies also offer energy efficiency assessments and upgrades services and you may be able to find such a person by searching for "Building Energy Assessment" or "Home Energy Audit" services.