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About us

We are the Go-to team of experts ready to help you build energy efficient homes. Whether your goal is code-compliance, energy ratings, ENERGY STAR, or Zero-Energy, we can help you get there.

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Services

REScheck Compliance Report Preparation

We offer REScheck report preparation. Preparing a REScheck Report is one method for validating compliance with the IECC Building Code (International Energy Compliance Code). These reports can be performed on new construction homes, remodels or additions. Our staff of energy code specialists includes HERS Raters and Manual J/D Report Specialists. We can perform REScheck reports from plans allowing you to focus on what you do best – designing and building homes.

Whole House MANUAL J Load Calculation

We offer heating and cooling load calculation. This will calculate how much cooling is needed for the summer months and how much heating is needed for the winter months. Our easy, affordable Manual J takes the guesswork out of your projects heating and cooling needs!

We make getting your HVAC permits easy and painless!

Energy Audits for Existing Homes

Boost your savings with tailored energy efficiency improvements. Optimize your home’s energy use for greater savings and sustainability.

Starting by scheduling an energy efficiency audit, this will be an essential step in reducing your home’s energy consumption, lowering utility bills, and contributing to a more sustainable environment. Through detailed assessments, we identify areas for improvement and implement solutions that maximize energy savings while enhancing comfort.

Building Inspections for Safe and Compliant Construction

We are a trusted partner with the City of El Paso for building a better environment. We provide building code compliance inspections to provide a reasonable level of safety, public health and general welfare with regards to the structure. Read More

Duct Pressure Testing

Duct pressure testing identifies energy loss through leaks in your ductwork. Ensure your dollars are not flying out your window! With our duct blaster machine our energy professionals will diagnose any air leakage inside a home’s air ducts. This leakage is measured in Cubic Feet per Minute (CFM), and a duct blaster is used to find this measurement. Read More

Blower Doors

A blower door is a useful tool to analyze and diagnose energy loss in a building.  It consists of a powerful fan that mounts into the frame of a doorway to the exterior of your home. Once the fan is turned on you will be able to measure the amount of air leaving the home in Cubic Feet per Minute (CFM). A qualified energy professional can calculate the specific target CFM for your house. Read More

Certified Insulation Inspection

For new and existing mechanical systems, Certified Insulation Inspectors will inspect and verify that both materials used and the total insulation system are installed correctly in accordance with project specifications. They also can identify areas of concern with previously installed insulation systems. Read More

Energy Star Certifications

Energy Star certified buildings help save money, energy, and protect the environment! Energy Star certified homes must meet a stricter set of energy performance standards.  At Lone Star, we can help you meet these standards by walking you through the process. We serve San Antonio and any surrounding area. Read More

Energy Rating Index

The Energy Rating Index (ERI) performance path gives builders yet another option for complying with the International Energy Conservation Code (IECC). The ERI performance path also requires builders to achieve the mandatory code requirements of the IECC, including water heating piping provisions, and comply with the minimum insulation and window envelope performance requirements of the 2009 IECC. The benefits of such performance path include energy bill savings as well as adding to a property’s resale value.

HERS Ratings

The HERs index is a rating that is between 0-150, with the typical standard home being at 100 (built to 2006 energy efficiency standards). The smaller the HERS score, the more energy efficient the home is. This report can be very helpful in Texas due to the year-round high temperatures and high energy bills. Read More

Contact Info:

El Paso, Texas
Horizon City, Texas
Socorro, Texas
San Antonio, Central Texas

 (915) 244-0240
 [email protected]
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HERS Ratings

What is a HERS Rating?

At Lone Star Energy Efficiency, we offer RESNET Home Energy Ratings to San Antonio and the surrounding areas. A HERS rater provides a preconstruction energy analysis of your building plans, the onsite pre-drywall inspection, and blower door and duct leakage testing.

We use your blueprints and energy efficiency software to determine your projected HERS. This software can also determine code compliance and forecasted energy usage. The San Antonio home builder can then use this information to decide on HVAC equipment and establishment products installed at their project to achieve higher HERS scores.

Our certified team at LSEE will then perform pre-drywall and duct leakage testing to determine that every air sealing and insulation measure has been made to meet thermal and air sealing requirements. Duct leakage is performed during this stage to ensure that your air ducts will meet minimum requirements earlier in the project, and to give ample time for subcontractors to come back out to make repairs.

Once all testing has been performed, LSEE will give a HERS score based on the HERS Index.

What is the Home Energy Ratings (HERS) Index Score?

The HERs index is a rating that is between 0-150, with the typical standard home being at 100 (built to 2006 energy efficiency standards). The smaller the HERS score, the more energy efficient the home is. This report can be very helpful in Texas due to the year-round high temperatures and high energy bills.

According to RESNET, a home with an index score of 70 is 30% more energy efficient than the standard reference home.

If you are looking to purchase a home in the San Antonio area, look for a HERS (Home Energy Raters) Index score! Contact our certified energy rater at LSEE, and we’ll use our energy rating system to ensure energy code compliance. We take pride in all the jobs we perform throughout Texas as third-party inspectors for energy efficiency. 

Data Driven HERS Raters in Texas

Things to know before you start on your next HERS in Texas:

  1. A certified HERS rater will start with a building plan review of your upcoming new construction project
  2. Ratings require a pre-drywall inspection that occurs right before installing your drywall and completing all of your air sealing and insulation.
  3. Blower door testing and duct leakage testing are a required part of the process and are performed when the project is completed.
  4. Check with a HERS raters company while you are planning to start a build because you could earn tax credits if a few additional steps are taken.
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Energy Rating Index

The Energy Rating Index (ERI) performance path gives builders yet another option for complying with the International Energy Conservation Code (IECC). The ERI performance path also requires builders to achieve the mandatory code requirements of the IECC, including water heating piping provisions, and comply with the minimum insulation and window envelope performance requirements of the 2009 IECC. The benefits of such performance path include energy bill savings as well as adding to a property’s resale value.

CALL US TODAY

ENERGY STAR Certification

What is an ENERGY STAR Certification?

Energy Star certified buildings help save money, energy, and protect the environment! Energy Star certified homes must meet a stricter set of energy performance standards.  At Lone Star, we can help you meet these standards by walking you through the process. We serve San Antonio and any surrounding area. 

The Energy Star process starts during the planning stage, requiring a specific type of framing, insulation, HVAC, and other standards that you do not see on standard code construction. Through the energy star process, there will be an onsite framing inspection, the onsite pre-drywall inspection, blower door, and duct leakage testing.

If you are interested in this certification, check out the Program Requirements page for the Energy Star overview to get a head start on your project.  Within this page, you will see that National Version 3.1 does have mandatory requirements that the builder and HVAC installer must meet.

Call now to find out how you can get started on your certification!

Why get your home ENERGY STAR certified?

ENERGY STAR impacts many homes by being 10% more efficient than built-to-code homes and having a better resale value (energystar.gov). With the San Antonio heat, electric bills are high due to the air conditioning trying to keep up. By meeting the requirements Energy Star created, homes are more environmentally friendly and improve the indoor air quality for their owners.

With the passing of the Inflation Reduction Act, the government will also be incentivizing builders with resources to build Energy Star homes with the extension of the 45 L tax credit. This new Tax credit is for homes built on or after January 1, 2023.

Energy Star Scores

The Energy Star Scores are rated on a 1-100 scale. The higher the score indicates that a building is a more efficient place than others. A score of 50 shows median performance, while greater than 75 indicates you’re a top performer and eligible for this certification due to your energy efficiency.

What are the Energy Star Resources?

Energy Star is a voluntary program created by the Environmental Protection Agency (EPA) to help consumers save money and protect the environment through energy-efficient practices. To be certified in Energy Star, a home must meet strict energy efficiency guidelines set forth by the EPA for you to get the certifications. These guidelines are designed to encourage the development of an energy efficient home that uses less energy, save money, and help protect the environment. To ensure that homes meet the Energy Star guidelines, the EPA conducts independent audits of homes that have been certified. The audits are designed to ensure that certified products and homes continue to meet the Energy Star guidelines. As a result, an energy Star-certified home uses less energy than a standard home or any buildings, which results in savings for consumers and helps to protect the environment. Reach out to our San Antonio team at LSEE so we can make your home Energy Star Certified.

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Certified Insulation Inspection

For new and existing mechanical systems, Certified Insulation Inspectors will inspect and verify that both materials used and the total insulation system are installed correctly in accordance with project specifications. They also can identify areas of concern with previously installed insulation systems.
Certified inspection of mechanical insulation systems will help reduce costs proven to be associated with non-compliance with mechanical insulation specifications (material and installation) and lack of proper and timely maintenance.

Certified inspection will also support energy savings, reducing emissions, and occupational and process safety initiatives, helping reduce the need for potential additional capital funds due to corrosion under insulation and other problematic occurrences.

The inspectors have been certified by the National Insulation Association (NIA) and utilize the inspection principles during the inspection process.

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Blower Door Test

Do you need to schedule our blower door testing services? Contact us today!

What is a blower door test?

A blower door is a useful tool to analyze and diagnose energy loss in a building.  It consists of a powerful fan that mounts into the frame of a doorway to the exterior of your home. Once the fan is turned on you will be able to measure the amount of air leaving the home in Cubic Feet per Minute (CFM). A qualified energy professional can calculate the specific target CFM for your house. 

Through our blower door tests, you will be able to physically feel the air coming through any gaps in the exterior envelope of the house. You can even feel the air with your hands while the fan is moving. 

Our team will use the fan to discover weak spots in your building envelope and get a baseline for any repairs that need to be made. 

Why is a blower door important in your home?

According to Energy.gov a blower door is important because it:

  • Reducing energy consumption from excess air leakage
  • Avoiding moisture condensation problems
  • Avoiding uncomfortable drafts caused by cold or warm air leaking in from outside
  • Controlling outdoor contaminants, pests, and odors from entering your home.
  • Determining proper sizing and airflow requirements of heating and cooling equipment.
  • Determining whether mechanical ventilation is needed to provide acceptable fresh air and maintain indoor air quality in your home.

Whether you are a residential homeowner looking to find out where you are losing energy, or a home builder looking to meet your local code, our blower door testing is a vital test for your building. Reach out to our San Antonio team for any of our energy efficiency services.

CALL US TODAY

Duct Pressure Testing

Duct pressure testing identifies energy loss through leaks in your ductwork. Ensure your dollars are not flying out your window! With our duct blaster machine our energy professionals will diagnose any air leakage inside a home’s air ducts. This leakage is measured in Cubic Feet per Minute (CFM), and a duct blaster is used to find this measurement.

The Duct Blaster will pull air out of the duct system (depressurize) and through the fan. The amount of air that is measured is the amount of leakage in the ducts.

To set up our testing, a technician will cover up all of the supply and return air registers in the house with tape or a cover. Then the duct blaster will be connected to the return register with tape. This process usually takes around 30 minutes to set up. Once all registers are sealed, the technician will turn on the machine and read the results on the manometer gauge.

Blower Doors:
Blower Doors testing identifies energy loss through leaks in your structure. The test ensures your house is not leaking energy. It consists of a powerful fan that mounts into the frame of a doorway to the exterior of your home. Once the fan is turned on you will be able to measure the amount of air leaving the home in Cubic Feet per Minute (CFM). A qualified energy professional can calculate the specific target CFM for your house. Through our blower door tests, you will be able to physically feel the air coming through any gaps in the exterior envelope of the house. You can even feel the air with your hands while the fan is moving.

Our team will use the fan to discover weak spots in your building envelope and get a baseline for any repairs that need to be made. This is important for the following reasons:

  • Reducing energy consumption from excess air leakage.
  • Avoiding moisture condensation problems
  • Avoiding uncomfortable drafts caused by cold or warm air leaking in from outside
  • Controlling outdoor contaminants, pests, and odors from entering your home.
  • Determining proper sizing and airflow requirements of heating and cooling equipment.
  • Determining whether mechanical ventilation is needed to provide acceptable fresh air and maintain indoor air quality in your home.
CALL US TODAY

Building Inspections for Safe and Compliant Construction

We are a trusted partner with the City of El paso for building a better environment. We provide building code compliance inspections to provide a reasonable level of safety, public health and general welfare with regards to the structure.

This can be accomplished through structural strength, means of egress facilities, stability, sanitation, adequate light and ventilation, energy conservation, and safety to life and property from fire and other hazards attributed to the built environment. It also outlines the minimum requirements to provide a reasonable level of safety during emergency operations.

Our team spends considerable time inspecting worksites to ensure that construction meets local and national building codes and ordinances, zoning regulations and contract specifications.

With a thorough understanding of the complexities of code compliance and constantly evolving statewide regulations, our technicians and inspectors utilize their many years of experience to ensure a smooth permitting and construction process.

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Renewable Energy Certificates

We offer Renewable Energy Certificates, this official documentation proves that one megawatt-hour (MWh) of renewable energy has been added to the energy grid. RECs can be used to meet voluntary goals, including RE100 and CDP commitments, or compliance obligations such as renewable portfolio standards (RPS).

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Whole House Heat Load Calculation

We offer Manual J heat load calculation. This will calculate how much cooling is needed for the summer months and how much heating is needed for the winter months. Our easy, affordable Manual J takes the guesswork out of your projects heating and cooling needs!

We make getting your HVAC permits easy and painless!

CALL US TODAY

REScheck Compliance Report Preparation

We offer REScheck report preparation. Preparing a REScheck Report is one method for validating compliance with the IECC Building Code (International Energy Compliance Code). These reports can be performed on new construction homes, remodels or additions. Our staff of energy code specialists includes HERS Raters and Manual J/D Report Specialists. We can perform REScheck reports from plans allowing you to focus on what you do best – designing and building homes.

 

CALL US TODAY