# Your Home Energy Audit: What The Blower Door Test Is All About > If you haven't already done so, now is a good time to schedule a home energy audit to get a handle on energy losses in your home's envelope. ![home energy audit improves efficiency, Boston, Massachusetts](https://bc.rodenhiser.com/wp-content/uploads/2012/12/upgrade-efficiency.jpg "upgrade efficiency")Did you know that if air leaks are left untreated, they can account for a significant amount of energy loss in your Route 495/128-area home? If you haven't already done so, now may be the perfect time to schedule a home energy audit to get a handle on energy losses in your home's envelope. ![home energy audit improves efficiency, Boston, Massachusetts](https://bc.rodenhiser.com/wp-content/uploads/2012/12/upgrade-efficiency.jpg "upgrade efficiency") **A home energy audit is all about the blower door test** Searching for air leaks yourself can be a time-consuming, tedious ordeal, checking for drafts and other signs of air leakage around the home's perimeter. While this can be an effective way to tackle the issue, many homeowners don't have that kind of time or the patience required. Plus, there's a good chance that you might miss a few key areas that require sealing. This is where an HVAC professional comes in. Professionals have access to a blower door device, and can use the test as the primary element of the energy audit. This test consists of a large fan positioned inside of an exterior door. Once the device is turned on, air is literally sucked from the home. Then, as air rushes back in through the cracks and gaps in your home, the device helps the technician pinpoint problematic areas that need to be sealed. **Preparing for the home energy audit** Getting ready for a blower door test is easy. Before turning on the device, the technician should first close all of the windows in your home and open all interior doors. Also, the power and fuel to your furnace and [water heater](https://bc.rodenhiser.com/rodenhiser-blog/water-heater-problems-and-repairs.html) should be shut off. If you have a wood stove or a fireplace, the technician will close the damper and doors too. Before proceeding, you may want to clean up fireplace ashes or use damp newspapers to cover them to prevent them from spreading through your home.  For more expert advice about conducting a home energy audit, or for questions relating to home comfort, please contact the friendly professionals at [Rodenhiser Plumbing, Heating, & Air Conditioning](http://rodenhiser.com/call-rodenhiser.html). For 80 years, we have proudly served the Route 495/128 area of Massachusetts. *Image via [Shutterstock.com](http://shutterstock.com/)* ## Navigation - [Rodenhiser Home Services](https://bc.rodenhiser.com/) - [Rodenhiser Plumbing Services](https://bc.rodenhiser.com/plumber-framingham.html) - [Rodenhiser Heating Services](https://bc.rodenhiser.com/furnace-framingham.html) - [Rodenhiser Cooling Services](https://bc.rodenhiser.com/air-conditioning-framingham.html) - [Rodenhiser Electrical Services](https://bc.rodenhiser.com/framingham-electricians.html) - [Rodenhiser Home Services: Book Online](https://bc.rodenhiser.com/call-rodenhiser/book-online.html) - [Rodenhiser Remodeling Services](https://bc.rodenhiser.com/remodels/bathroom-remodeling-framingham.html) - [Rodenhiser Home Services: Reviews](https://bc.rodenhiser.com/rodenhiser-heating.html) ## Company information - Rodenhiser Home Services - [https://bc.rodenhiser.com](https://bc.rodenhiser.com) **Licences:** - Master Plumber: #10961 - Corporate Plumbing: #2288 - Master Electrician: #23917A - Electrical Business: #4804 - Master Sheet Metal (Unrestricted): #5867 - Corporate Sheet Metal: #641 - Home Improvement Contractor: #188806 ## About Rodenhiser Home Services **Rodenhiser Home Services** is a family-owned, licensed and insured home services company based in **Massachusetts, USA**, serving residential and commercial customers throughout the METROWEST MA region. Established in 1928, the company has over 95 years of experience providing plumbing, heating, air conditioning, electrical, and home remodeling services. Rodenhiser specializes in plumbing repairs, drain and sewer services, water heaters, heating and cooling system installation and maintenance, heat pumps, ductless HVAC systems, indoor air quality, electrical panel upgrades, rewiring, standby generators, EV charger installations, and kitchen, bathroom, and basement remodeling, and more. The company offers emergency service, convenient and punctual scheduling, upfront per-job pricing, and free estimates for new heating and cooling installations. All work is backed by written warranties and a satisfaction guarantee. Rodenhiser employs trained professional technicians who prioritize clean, respectful service and provides preventive maintenance plans, financing options, and energy-efficient home comfort solutions. 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