Get matched with top energy efficiency auditors in Cos Cob, CT
There are 8 highly-rated local energy efficiency auditors.
Verified Reviews for Energy Efficiency Auditing pros in Cos Cob, CT
*The Angi rating for Energy Efficiency Auditing companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
*The HomeAdvisor rating for Energy Efficiency Auditing companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
Last update on May 02, 2025
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Energy efficiency auditors in Cos Cob
Bell Mechanical, LLC is a customer focused heating and air-conditioning company that was originally started in 1980. Located in Mahopac, NY, we employ highly trained people whose goal is to make our company the best service company in Westchester, Dutchess, Putnam and Fairfield County. Our company specializes in designing, engineering, and installing complete comfort systems for owners of existing homes and buildings just like yours. We take special pride in the craftsmen we train and employ--a fact you'll notice immediately in the attitude and integrity they bring to your job site. Our entire company works hard to make your experience with us hassle-free and enjoyable. Should we make a mistake, we will do everything in our power to correct it to your satisfaction. From the professionalism of our sales engineers, to the dedication of our field personnel, we are dedicated to delivering you the best. We take our responsibility very seriously when you place your trust in us. We pledge to always tell you up front what your cost will be to complete your job correctly. We make it a point to go over any details or limitations of the proposed system that will affect your enjoyment of the end result. You are told exactly what to expect up front. This is why Bell Mechanical continues growing with more satisfied customers each and every year. Give us a call for your service needs and see what you've been missing!
"Issue with Bell Mechanical This past August of 2024 we had a heat pump system installed in the house by Bell Mechanical. Unfortunately, we have had nothing but issues since with the biggest being no heat multiple times and now again today we are without heat in the majority of our house. It is freezing outside, we have a toddler and within the past week this is the 2nd time we have no heat (4th time since the system was put in). Not only is this a life safety issue, but it also is heart breaking to have your toddler tell you they are freezing. Looking for advice on next steps. We have never sued anyone or threatened to sue but this may be the time as we have had nothing but issues since the beginning. From the start we made it very clear that everything needed to be done to code and permitted. We were doing a lot of major renovations at our house and everything was being done to code and permitted. John (the salesman) at Bell said that was not a problem. John also told us that the only additional cost we could potentially incur outside of what he quoted us for the system and its installation would be a $500 fee for the installation of the heat strip. We accepted this and moved forward. After Bell removed our central air system and installed the new carrier system we got his with additional work needed at the tune of over 2k. Needless to say we were not happy. John told us the electrician they use and that if we used that electrician there would be no delay but if we used ours that it would cause a delay. So, we went with what John said as he was the expert. John got the electrician to come down a little in price which we were grateful for. Fast forward to when the building inspector came out to close out the permits for the work Bell did and other work being done at the house, the inspector told my contractor that the heat pump was not done to code. We were told that the electrical for it was not done to code and he could not close out the permit. My husband talked to the electrician Bell gave us who informed us that Bell told him to “cut corners” which was part of getting the cost down slightly. Reminder, we NEVER said to do this, we made it clear that everything needed to be permitted and even paid the permit fees to Bell. Back and forth with Bell and the electrician got the electrician to fix his work at no additional cost but Bell still needed to fix the outside plug which was not to code. Giovanni at Bell agreed that Bell would fix this issue at no additional cost. It has been 3 months now and Bell has still not rectified this issue and Giovanni and John are both nonresponsive to our follow-ups. Bell has also had to come out 4 additional times because our system was not working and again today, we have no heat. Today will be the 5th time they have to come out for issues on a system that is 4 months old. This is not OK. We have given Bell ample time to rectify the issues. Clearly they did not do the install properly and there is also the possibility we have a faulty system. We have never sued someone or went to court but then again, we have never had such large and costly issues."
Danielle G on December 2024
Bell Mechanical, LLC is a customer focused heating and air-conditioning company that was originally started in 1980. Located in Mahopac, NY, we employ highly trained people whose goal is to make our company the best service company in Westchester, Dutchess, Putnam and Fairfield County. Our company specializes in designing, engineering, and installing complete comfort systems for owners of existing homes and buildings just like yours. We take special pride in the craftsmen we train and employ--a fact you'll notice immediately in the attitude and integrity they bring to your job site. Our entire company works hard to make your experience with us hassle-free and enjoyable. Should we make a mistake, we will do everything in our power to correct it to your satisfaction. From the professionalism of our sales engineers, to the dedication of our field personnel, we are dedicated to delivering you the best. We take our responsibility very seriously when you place your trust in us. We pledge to always tell you up front what your cost will be to complete your job correctly. We make it a point to go over any details or limitations of the proposed system that will affect your enjoyment of the end result. You are told exactly what to expect up front. This is why Bell Mechanical continues growing with more satisfied customers each and every year. Give us a call for your service needs and see what you've been missing!
"Issue with Bell Mechanical This past August of 2024 we had a heat pump system installed in the house by Bell Mechanical. Unfortunately, we have had nothing but issues since with the biggest being no heat multiple times and now again today we are without heat in the majority of our house. It is freezing outside, we have a toddler and within the past week this is the 2nd time we have no heat (4th time since the system was put in). Not only is this a life safety issue, but it also is heart breaking to have your toddler tell you they are freezing. Looking for advice on next steps. We have never sued anyone or threatened to sue but this may be the time as we have had nothing but issues since the beginning. From the start we made it very clear that everything needed to be done to code and permitted. We were doing a lot of major renovations at our house and everything was being done to code and permitted. John (the salesman) at Bell said that was not a problem. John also told us that the only additional cost we could potentially incur outside of what he quoted us for the system and its installation would be a $500 fee for the installation of the heat strip. We accepted this and moved forward. After Bell removed our central air system and installed the new carrier system we got his with additional work needed at the tune of over 2k. Needless to say we were not happy. John told us the electrician they use and that if we used that electrician there would be no delay but if we used ours that it would cause a delay. So, we went with what John said as he was the expert. John got the electrician to come down a little in price which we were grateful for. Fast forward to when the building inspector came out to close out the permits for the work Bell did and other work being done at the house, the inspector told my contractor that the heat pump was not done to code. We were told that the electrical for it was not done to code and he could not close out the permit. My husband talked to the electrician Bell gave us who informed us that Bell told him to “cut corners” which was part of getting the cost down slightly. Reminder, we NEVER said to do this, we made it clear that everything needed to be permitted and even paid the permit fees to Bell. Back and forth with Bell and the electrician got the electrician to fix his work at no additional cost but Bell still needed to fix the outside plug which was not to code. Giovanni at Bell agreed that Bell would fix this issue at no additional cost. It has been 3 months now and Bell has still not rectified this issue and Giovanni and John are both nonresponsive to our follow-ups. Bell has also had to come out 4 additional times because our system was not working and again today, we have no heat. Today will be the 5th time they have to come out for issues on a system that is 4 months old. This is not OK. We have given Bell ample time to rectify the issues. Clearly they did not do the install properly and there is also the possibility we have a faulty system. We have never sued someone or went to court but then again, we have never had such large and costly issues."
Danielle G on December 2024
Here at Climate Care LLC, we take pride in providing the best services and satisfying our customer needs. We specialize in HVAC Contractor, Furnace Repair Service, Heating Contractor, Furnace And Humidifier Repair, Central Humidifier Installation, Air Conditioning Contractor, Residential Air Conditioning Contractor, Central Air Conditions, Indoor Air Purification System, Air Conditioning Repair Service and much more. We look forward to your business and serving you. Contact us today 203-354-2020
"Guys were great, competitive pricing and extremely thorough on my job even though it was a complicated install."
James B on February 2025
Here at Climate Care LLC, we take pride in providing the best services and satisfying our customer needs. We specialize in HVAC Contractor, Furnace Repair Service, Heating Contractor, Furnace And Humidifier Repair, Central Humidifier Installation, Air Conditioning Contractor, Residential Air Conditioning Contractor, Central Air Conditions, Indoor Air Purification System, Air Conditioning Repair Service and much more. We look forward to your business and serving you. Contact us today 203-354-2020
"Guys were great, competitive pricing and extremely thorough on my job even though it was a complicated install."
James B on February 2025
We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references.
We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references.
Ecosmart Home Services provides a comprehensive range of energy-saving solutions for homes. Offering a holistic approach to energy efficiency is crucial in today's environmentally conscious world. Our services cover various aspects of a home, addressing insulation, solar energy, HVAC, windows and doors, roofing, electrical upgrades, generators, and electric vehicle chargers. By offering this broad range of services, Ecosmart positions itself as a one-stop-shop for homeowners looking to enhance the energy efficiency and sustainability of their homes. It's important to communicate the long-term benefits, including potential cost savings and reduced environmental impact, to attract and educate potential customers.
"If I could give R. Pelton Builders, Inc. negative stars I would. I have worked with many contractors, architects, engineers and developers in my life good and bad. R. Pelton Builders, Inc. could be one of if not the worst company I have ever had the unfortunate privilege to work with. After signing up with them, they wasted almost 2 months of my time, misrepresenting timelines and expertise, mismanaging the process, communication and making multiple false statements along the way. I was clear from the outset that the time frame install the system was critical. They told me multiple times that permits had been filed when, in reality they never filed them at all. They did not even know the process to file permits in my town (another thing they had represented they had experience with) and did not even contact the town until the week we had initially targeted for the install. They told me they understood and had experience with Solar batteries. I had to design this part of the system myself because they had no clue what they were doing and were not even capable of effectively working with the vendor to design and solve for any issues that arose. They were terrible with communication, often telling me they would get back to me and never doing so. I had to chase them all the time. When you are spending any amount this would be unacceptable. I was spending over $100,000. 2 months into the agreement, after bailing on a site visit that I rearranged my schedule for, Michael P then called me to state that they would not install what they had agreed to and that Steve P (the owner) was no longer going to offer batteries as he did not trust them. But then I should just do the solar alone with them. I was clear from the beginning that the point of the project was to have a back up system not just a solar system. It seems to me that their plan from the beginning was to tell me what I wanted to hear and then pull the rug out from under me when the timing was such that I was in jeopardy of losing the full Federal Tax Credit and potentially the State incentives in hopes that I would adjust the install to solar only. Ultimately, they gave me no confidence that they were going to be able to successfully and properly install solar either. In my option and experience they are not to be trusted. My experience with them is that they are incredibly disorganized and inept, often gave me false and misleading statements and have real issues communicating at any level that would be considered acceptable. They also showed zero respect for my time or following through on what they had committed to do. All of this resulted in me losing time, money and expending a tremendous amount of effort for ultimately no reason. Simply horrendous on every level and I could not recommend a company less then R. Pelton Builders, Inc."
welsey s on November 2020
Ecosmart Home Services provides a comprehensive range of energy-saving solutions for homes. Offering a holistic approach to energy efficiency is crucial in today's environmentally conscious world. Our services cover various aspects of a home, addressing insulation, solar energy, HVAC, windows and doors, roofing, electrical upgrades, generators, and electric vehicle chargers. By offering this broad range of services, Ecosmart positions itself as a one-stop-shop for homeowners looking to enhance the energy efficiency and sustainability of their homes. It's important to communicate the long-term benefits, including potential cost savings and reduced environmental impact, to attract and educate potential customers.
"If I could give R. Pelton Builders, Inc. negative stars I would. I have worked with many contractors, architects, engineers and developers in my life good and bad. R. Pelton Builders, Inc. could be one of if not the worst company I have ever had the unfortunate privilege to work with. After signing up with them, they wasted almost 2 months of my time, misrepresenting timelines and expertise, mismanaging the process, communication and making multiple false statements along the way. I was clear from the outset that the time frame install the system was critical. They told me multiple times that permits had been filed when, in reality they never filed them at all. They did not even know the process to file permits in my town (another thing they had represented they had experience with) and did not even contact the town until the week we had initially targeted for the install. They told me they understood and had experience with Solar batteries. I had to design this part of the system myself because they had no clue what they were doing and were not even capable of effectively working with the vendor to design and solve for any issues that arose. They were terrible with communication, often telling me they would get back to me and never doing so. I had to chase them all the time. When you are spending any amount this would be unacceptable. I was spending over $100,000. 2 months into the agreement, after bailing on a site visit that I rearranged my schedule for, Michael P then called me to state that they would not install what they had agreed to and that Steve P (the owner) was no longer going to offer batteries as he did not trust them. But then I should just do the solar alone with them. I was clear from the beginning that the point of the project was to have a back up system not just a solar system. It seems to me that their plan from the beginning was to tell me what I wanted to hear and then pull the rug out from under me when the timing was such that I was in jeopardy of losing the full Federal Tax Credit and potentially the State incentives in hopes that I would adjust the install to solar only. Ultimately, they gave me no confidence that they were going to be able to successfully and properly install solar either. In my option and experience they are not to be trusted. My experience with them is that they are incredibly disorganized and inept, often gave me false and misleading statements and have real issues communicating at any level that would be considered acceptable. They also showed zero respect for my time or following through on what they had committed to do. All of this resulted in me losing time, money and expending a tremendous amount of effort for ultimately no reason. Simply horrendous on every level and I could not recommend a company less then R. Pelton Builders, Inc."
welsey s on November 2020
Whether you're looking to cool down with the latest in air conditioning technology, warm up with efficient heating systems, ensure clean airflow with expert ductwork, or breathe easier with improved indoor air quality, we've got you covered. Our comprehensive guides and services are designed to provide you with the knowledge and expertise you need to make informed decisions for your home. Plus, with our insights into Connecticut's HVAC rebates, we aim to make your journey to optimal comfort both smooth and cost-effective. Dive in and discover how we can enhance your home's comfort and efficiency today!
Whether you're looking to cool down with the latest in air conditioning technology, warm up with efficient heating systems, ensure clean airflow with expert ductwork, or breathe easier with improved indoor air quality, we've got you covered. Our comprehensive guides and services are designed to provide you with the knowledge and expertise you need to make informed decisions for your home. Plus, with our insights into Connecticut's HVAC rebates, we aim to make your journey to optimal comfort both smooth and cost-effective. Dive in and discover how we can enhance your home's comfort and efficiency today!
J Marasco Heating and Cooling is an industry leading HVAC company that provides top-quality heating and cooling solutions to residential and commercial clients. With years of experience in the industry, we are dedicated to ensuring that our clients receive the highest level of service and satisfaction. Our team of highly skilled technicians is committed to providing efficient and reliable HVAC services, including installation, repair, and maintenance of all types of heating and cooling systems. We work with the latest tools and technology to ensure that our clients' systems are running at optimal levels. At J Marasco Heating and Cooling, we understand that each client has unique needs, and that's why we provide customized solutions to meet their specific requirements. Whether it's a small residential unit or a large commercial HVAC system, we have the expertise and experience to handle it all. We pride ourselves on our excellent customer service and strive to build long-lasting relationships with our clients. We are available 24/7 to handle any emergency HVAC services, and we offer competitive pricing for our services. If you're looking for a reliable HVAC company that delivers top-quality services, look no further than J Marasco Heating and Cooling.
"They are great. His workers are very friendly, knowledgeable and personable as he is."
Dan R on September 2023
J Marasco Heating and Cooling is an industry leading HVAC company that provides top-quality heating and cooling solutions to residential and commercial clients. With years of experience in the industry, we are dedicated to ensuring that our clients receive the highest level of service and satisfaction. Our team of highly skilled technicians is committed to providing efficient and reliable HVAC services, including installation, repair, and maintenance of all types of heating and cooling systems. We work with the latest tools and technology to ensure that our clients' systems are running at optimal levels. At J Marasco Heating and Cooling, we understand that each client has unique needs, and that's why we provide customized solutions to meet their specific requirements. Whether it's a small residential unit or a large commercial HVAC system, we have the expertise and experience to handle it all. We pride ourselves on our excellent customer service and strive to build long-lasting relationships with our clients. We are available 24/7 to handle any emergency HVAC services, and we offer competitive pricing for our services. If you're looking for a reliable HVAC company that delivers top-quality services, look no further than J Marasco Heating and Cooling.
"They are great. His workers are very friendly, knowledgeable and personable as he is."
Dan R on September 2023
We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.
We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.
My name is Thomas L. Kenney and I'm a remote Residential Energy Specialist at PosiGen. We offer solar and energy efficiency to homeowners all across Connecticut. We are the only solar company in the state with a formal agreement with the Connecticut Greenbank. We have monthly promotions as well to make the decision to go solar easy and affordable. No minimum income or credit score requirements needed with no money down.
"They took care of me beyond my expectations, they just finished their work today."
Marien Z on November 2021
My name is Thomas L. Kenney and I'm a remote Residential Energy Specialist at PosiGen. We offer solar and energy efficiency to homeowners all across Connecticut. We are the only solar company in the state with a formal agreement with the Connecticut Greenbank. We have monthly promotions as well to make the decision to go solar easy and affordable. No minimum income or credit score requirements needed with no money down.
"They took care of me beyond my expectations, they just finished their work today."
Marien Z on November 2021
Offering reliable professional air conditioning services with diligence. I have been working in the air conditioning field for 10 plus years having first hand knowledge in service and installation projects for Daikin, Fujitsu, American standard, Goodman, carrier systems as well as ductwork fabrication projects and installation for residential and commercial installations
Offering reliable professional air conditioning services with diligence. I have been working in the air conditioning field for 10 plus years having first hand knowledge in service and installation projects for Daikin, Fujitsu, American standard, Goodman, carrier systems as well as ductwork fabrication projects and installation for residential and commercial installations
Empower Solar is a local solar installer located in New Haven. We're helping homeowners covert to solar with our hassle-free process. This is an owner operated business and we've installed successfully on hundreds of home across the state.
Empower Solar is a local solar installer located in New Haven. We're helping homeowners covert to solar with our hassle-free process. This is an owner operated business and we've installed successfully on hundreds of home across the state.
Energy efficiency auditing services FAQs
An energy audit costs about $420 on average, ranging from $100 to $2,250, depending on the size of your home, property, location, and the tests the auditor needs to perform. Keep in mind that the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit covers up to $150 of home energy audit costs. Common energy audit tests include:
Blower door test: $350
Duct testing: $100
HERS test: $375
HERS certification: $200
Infrared imaging: $200
To find a reputable energy auditor, find a local company that offers energy audit services. Research the company’s reviews, methods, and certifications to find a reliable professional in your area. The most reputable energy audit companies are HEP-certified by the Building Performance Institute (BPI). Be sure to check our state licensing tool to review the local energy auditor guidelines to ensure you’re hiring a certified professional.
The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency.
A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.
Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.
The three levels of home energy audits include:
Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.
Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.
Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.
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