Building Envelope

Building Envelope

The building envelope, also called building enclosure, shell or perimeter, is simply the physical barrier between your home’s conditioned (heated or cooled) and unconditioned air. This consists of exterior walls, roof, sub floor, exterior doors and windows. A tightly-sealed building envelope is effective at keeping conditioned air inside your home, creating a comfortable living space with reduced energy output.

Hassler: California’s Building Envelope Consultant

Your home may be losing up to 15 percent of its cooled or heated air through leaky ducts, inefficient heating and cooling units, poor insulation or other easily solved problems. Hassler is your building envelope consultant. We can look at your whole house, from crawl space to attic, to find areas of wasted energy and create a high-performance strategy to increase your comfort and improve efficiency.

Our team is at the ready to help with all envelope improvements including air sealing, spray foam insulation, home recovery ventilators, and vapor barriers. Our trained technicians understand the conditions that impact California homes and can conduct home energy assessments, home energy ratings and whole house energy evaluations.

The Importance of Ventilation

Your home needs adequate ventilation and a good flow of fresh air to prevent the growth of mold and mildew, which can cause health problems. In the East Bay’s varied climate, you also want to feel comfortably protected from drafts and shifting weather. Hassler can make sure your home maintains a healthy indoor climate no matter the environmental conditions.

Improving Your Home’s Building Enclosure Pays Off!

Upgrading your building envelope is the most efficient way to improve your home’s comfort, energy ratings, create a high-performance home environment and lower energy costs.

We can also help you take advantage of any rebates and incentive programs available for homeowners in Orinda, Oakland, San Rafael and surrounding areas.

How It Works:

  • Contact us to schedule a home energy audit.
  • A home performance specialist will inspect your home and prepare a detailed report identifying energy efficiency improvements and estimated cost savings.
  • We provide a written contract detailing work and cost, and will schedule a date for your home performance improvements to begin.
  • After the work is done, we perform tests to make sure energy efficiency goals are met.
  • We’ll send you a certificate showing your home’s energy performance improvements.
  • You’ll receive your cash incentive (if applicable) via mail and start seeing savings on your next energy bill.

Call us to schedule your home energy audit and start saving money on your utility bills today!

The Hassler Difference

Hassler knows that getting the job done right today will lead to customers being our biggest advocates tomorrow.
  • Exceeding Expectations

    Our philosophy on customer service is to not only meet expectations but to exceed them. Whether it is your home heating and cooling, improving your indoor air quality, or scheduling a home energy assessment, we are committed to over-delivering throughout your entire journey with Hassler.

  • Leadership
    From our newest team member on up to our leadership and ownership, we are committed to producing the highest level of workmanship - all in an efficient manner. We accomplish this through better training, education, planning, and leadership across all the products and services we provide.
  • Accountability

    We are committed to holding ourselves and each other accountable to integrity, customer satisfaction, and peak performance. We are unwavering in our commitment to not only talk about the solution, but to be a part of it.

  • Lasting Relationships
    Developing long lasting relationships is at the core of our organization. When interacting with a customer or team member, we are committed to building mutual trust and respect. Our reputation is the foundation of the company, and at the end of the day, our word is all we have!
  • Growth

    Through a dedication to training, education and leadership, we will continue to grow to remain the leading HVAC and home performance company in Contra Costa, Alameda, and Marin counties. We are continually honing our craft and challenging ourselves to improve who we are as an organization for what we can become.

  • Go Green
    We care deeply about the changing climate here in California, and want to help other Californians reduce their impact on the environment. Hassler places an emphasis on embracing “Green” technologies and processes whenever possible, and reducing energy use.
    "Professional, efficient and responsive."
    “We highly recommend Hassler Heating and AC. Three years ago, we updated our system with a heat pump. The installers were professional, efficient and responsive.”
    - Diane M.
    "The company provided great service."
    “He quickly identified the problem, took time to explain it, answered my questions and got everything in working order under 2 hours that even included a trip back to El Cerrito to get the right part. He was very courteous and respectful.”
    - Veronica A.
    "He had us up and running very quickly."
    “He had us up and running very quickly and also was able to make some other recommendations for service and maintenance. He was great, and I will continue to use him and his team for maintenance and repairs.”
    - Scott L.
    "I am so thankful."
    “Hassler Heating went above and beyond customer service! My AC unit started smoking and I called to make an appointment and they were able to fit me into their schedule that day!”
    - Emily V.
    "I also want to commend your work crew."
    “They were very efficient as well as pleasant in their interaction with me. They did such a good job that my next-door neighbor, after watching them at work, told me that he has decided to hire your firm to install a new heating system for his house.”
    - Marilyn B.
    "Very knowledgable."
    “Chris just came out and inspected a furnace and ducting for me at a property that clients of mine are purchasing in El Cerrito. He was very knowledgable and was sure to take the time to answer all of my questions thoroughly.”
    - Jeffery S.
    "We have full confidence."
    “We have full confidence that we now have a first class heating system that will serve us well in the years to come. We know in the future we will need to replace our roof mounted air conditioner, and we will confidently call on Hassler to do the job.”
    - Tom R.
    "Always professional."
    “They squeezed a whole lot of equipment into a tiny attic without a single complaint. They also helped with all of the energy-saving rebates . The estimator, installers, and service guys have been great.”
    - Sean M.

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