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  • Verified reviews icon10
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Millstone

Avatar for RJ Walsh Associates, Inc.

RJ Walsh Associates, Inc.

4.81(
87
)
Approved Pro

RJ Walsh Associates, Inc.

4.81(
87
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
17 years of experience

RJ Walsh Associates, Inc., is a locally owned and operated business of 25 years. Specializing in Home Energy Audits, insulation, Air Sealing, and other energy efficient upgrades. If your home is drafty, has rooms or floors that you just can't seem to heat properly in the winter or cool in the summer, we can help. We identify the problems and propose reasonable, cost effective solutions. We participate in, and have an expert knowledge of programs to help you pay for these improvements. YOU DON'T HAVE TO LIVE LIKE THAT!

"Guys were great. Some sheetrock was broken, not their fault, old walls. Came back and fixed it quickly. Would recommend!"

Adam V on March 2025

RJ Walsh Associates, Inc., is a locally owned and operated business of 25 years. Specializing in Home Energy Audits, insulation, Air Sealing, and other energy efficient upgrades. If your home is drafty, has rooms or floors that you just can't seem to heat properly in the winter or cool in the summer, we can help. We identify the problems and propose reasonable, cost effective solutions. We participate in, and have an expert knowledge of programs to help you pay for these improvements. YOU DON'T HAVE TO LIVE LIKE THAT!

"Guys were great. Some sheetrock was broken, not their fault, old walls. Came back and fixed it quickly. Would recommend!"

Adam V on March 2025


Avatar for Ciel Power, LLC

Ciel Power, LLC

4.55(
11
)
Approved Pro

Ciel Power, LLC

4.55(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

Give your home the upgrades it needs. Get up to $5,000 in cash-back rebates and up to $15,000 in incentive financing to install today's energy-efficient products in your home. As a participating provider of the PSE&G, JCP&L, & NJNG Home Performance with ENERGY STAR Programs, Ciel customers enjoy cash-back and financing incentives for installing upgrades, including attic insulation, exterior wall insulation, heating, cooling, and hot water systems. There are no income requirements, and owners of single and multi-family homes are eligible. Ciel streamlines the customer experience with easy-to-understand reports, experienced consultants, and skilled rebate specialists to speed up your participation without losing track of the details. Schedule a home energy assessment with New Jersey's premier provider for just $99.

"Good communication, easy to work with."

Ramon H on September 2022

Give your home the upgrades it needs. Get up to $5,000 in cash-back rebates and up to $15,000 in incentive financing to install today's energy-efficient products in your home. As a participating provider of the PSE&G, JCP&L, & NJNG Home Performance with ENERGY STAR Programs, Ciel customers enjoy cash-back and financing incentives for installing upgrades, including attic insulation, exterior wall insulation, heating, cooling, and hot water systems. There are no income requirements, and owners of single and multi-family homes are eligible. Ciel streamlines the customer experience with easy-to-understand reports, experienced consultants, and skilled rebate specialists to speed up your participation without losing track of the details. Schedule a home energy assessment with New Jersey's premier provider for just $99.

"Good communication, easy to work with."

Ramon H on September 2022


Avatar for Doctor Energy Smart® Insulation Solutions

Doctor Energy Smart® Insulation Solutions

4.80(
100
)

Doctor Energy Smart® Insulation Solutions

4.80(
100
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Check our 105 mostly all "A" Angie'sList Reviews, and well over 108 Google reviews, we employ a "tradition of innovation"(not imitation) of insulation.#1 in thermal or soundproof noise insulation best describes our well known "Proven" committment to customer satisfaction....In fact, just Google "New Jerseys best insulation company" ! You will find us there!!! Our team is fully family-owned and operated. Our use of thermal camera infrared technology locates all energy-loss areas in your home with ease. Our soundproofing equipment measures and dictates our priority based solutions for sound attenuation. We provide the highest level of professional home improvement knowledge with the utmost consideration for customer service. Doctor Energy Smart is proud to say that all work is done by actual company owners, no sub-contractors and very dedicated assisting employees. This enables us to provide you with a full guarantee of satisfaction that the job is done right the first time. Being fully owner-operated means the highest level of standards are maintained in all areas of our business to keep our customers telling their friends and neighbors about us. Attention to detail and a strong adherence to being thorough, has placed us at the top of online reviews from fully satisfied clients of our past! This also includes Yelp, HomeAdvisor, Google and Facebook reviews! These are easily found on our website homepage http://www.DoctorEnergySmart.com. It steers us to being pioneers of an industry, stifled in complacency! We continue searching out better high-performance home insulation products and techniques.Our efforts create "real change" in comfort and energy-saving. Feel free to search our reviews. We work hard to achieve them. Here is our celebration of well over 10 years providing excellent service! IF YOU MESSAGE US, PLEASE LEAVE YOUR CONTACT INFORMATION, PHONE OR EMAIL! Best to email [email protected], [email protected] or [email protected]

"Great John really knows his business"

Yan Yu Z on June 2018

Check our 105 mostly all "A" Angie'sList Reviews, and well over 108 Google reviews, we employ a "tradition of innovation"(not imitation) of insulation.#1 in thermal or soundproof noise insulation best describes our well known "Proven" committment to customer satisfaction....In fact, just Google "New Jerseys best insulation company" ! You will find us there!!! Our team is fully family-owned and operated. Our use of thermal camera infrared technology locates all energy-loss areas in your home with ease. Our soundproofing equipment measures and dictates our priority based solutions for sound attenuation. We provide the highest level of professional home improvement knowledge with the utmost consideration for customer service. Doctor Energy Smart is proud to say that all work is done by actual company owners, no sub-contractors and very dedicated assisting employees. This enables us to provide you with a full guarantee of satisfaction that the job is done right the first time. Being fully owner-operated means the highest level of standards are maintained in all areas of our business to keep our customers telling their friends and neighbors about us. Attention to detail and a strong adherence to being thorough, has placed us at the top of online reviews from fully satisfied clients of our past! This also includes Yelp, HomeAdvisor, Google and Facebook reviews! These are easily found on our website homepage http://www.DoctorEnergySmart.com. It steers us to being pioneers of an industry, stifled in complacency! We continue searching out better high-performance home insulation products and techniques.Our efforts create "real change" in comfort and energy-saving. Feel free to search our reviews. We work hard to achieve them. Here is our celebration of well over 10 years providing excellent service! IF YOU MESSAGE US, PLEASE LEAVE YOUR CONTACT INFORMATION, PHONE OR EMAIL! Best to email [email protected], [email protected] or [email protected]

"Great John really knows his business"

Yan Yu Z on June 2018


Avatar for Seidel Electric Inc

Seidel Electric Inc

4.93(
57
)

Seidel Electric Inc

4.93(
57
)
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Seidel Electric Inc. is a locally owned electrical contracting firm established in 1944, serving our customers uninterrupted for the last 72 years. Our technicians are licensed Master Electricians and we are bonded professionals and fully insured. One of our main focuses is the sales, service and installation of Generac residential and commercial standby generators. We are proud to have earned the distinction as a GENERAC a Select, POWERPRO*, PowerPlay* Dealer. Our well marked service vehicles are virtual warehouses on wheels stocked with thousands of products so that your project can be completed in one trip. No annoying trips to the supply house on your dime. We are committed to providing you with fast, friendly, quality service unmatched in our industry.Our welcoming and knowledgeable office staff is always ready to answer your questions and schedule your appointment for an "In Home Consultation", or service call. We have a Brick and Mortal location with full a stocked showroom displaying the current products, technology and services that we provide Seidel Electric does not charge by the hour like our colleagues in the industry. Rather, we will give you a "Straight Forward Price* for any service, repairs or installation before any work has begun. You will never hear, " Lets us get started on your job and we will bill you at the end." For the rest of the day you will be looking at your watch, getting annoyed at the contractor for conducting business with others on his cell phone while you are paying for his time. With "Straight Forward Pricing*" You pay the price quoted no matter how long it takes. Additional DBA - Seidel's Satellite Systems Seidel's; a DirecTV local service provider and installer and Radio Shack Dealer Franchise Store. (not affected with the recent Corporate store closures)

"hands down the best in northwest NJ! Seidel electric was referred to me by a coworker with raving reviews when I was looking to put a generator into my newly purchased home. The owner (Steven) sat down in my kitchen for a long and thought out conversation and ended up doing a wonderful job for way less than the competition. Most recently my transfer switch was blown out by a power surge during a brown out. Steven and one of his electricians came out on their off time to make sure his customer was taken care of. They do great work, for great prices, and have even better customer service."

efraim h on September 2023

Seidel Electric Inc. is a locally owned electrical contracting firm established in 1944, serving our customers uninterrupted for the last 72 years. Our technicians are licensed Master Electricians and we are bonded professionals and fully insured. One of our main focuses is the sales, service and installation of Generac residential and commercial standby generators. We are proud to have earned the distinction as a GENERAC a Select, POWERPRO*, PowerPlay* Dealer. Our well marked service vehicles are virtual warehouses on wheels stocked with thousands of products so that your project can be completed in one trip. No annoying trips to the supply house on your dime. We are committed to providing you with fast, friendly, quality service unmatched in our industry.Our welcoming and knowledgeable office staff is always ready to answer your questions and schedule your appointment for an "In Home Consultation", or service call. We have a Brick and Mortal location with full a stocked showroom displaying the current products, technology and services that we provide Seidel Electric does not charge by the hour like our colleagues in the industry. Rather, we will give you a "Straight Forward Price* for any service, repairs or installation before any work has begun. You will never hear, " Lets us get started on your job and we will bill you at the end." For the rest of the day you will be looking at your watch, getting annoyed at the contractor for conducting business with others on his cell phone while you are paying for his time. With "Straight Forward Pricing*" You pay the price quoted no matter how long it takes. Additional DBA - Seidel's Satellite Systems Seidel's; a DirecTV local service provider and installer and Radio Shack Dealer Franchise Store. (not affected with the recent Corporate store closures)

"hands down the best in northwest NJ! Seidel electric was referred to me by a coworker with raving reviews when I was looking to put a generator into my newly purchased home. The owner (Steven) sat down in my kitchen for a long and thought out conversation and ended up doing a wonderful job for way less than the competition. Most recently my transfer switch was blown out by a power surge during a brown out. Steven and one of his electricians came out on their off time to make sure his customer was taken care of. They do great work, for great prices, and have even better customer service."

efraim h on September 2023


Avatar for NP Energy Inc.

NP Energy Inc.

4.93(
30
)

NP Energy Inc.

4.93(
30
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

We specialize in all your insulation needs! Closed Cell Spray Foam, Injection Foam, Blown In Insulation, Closed cavity dense packing and sound proofing, Air Sealing, Batting Insulation and Removal of Existing Insulation. We are family owned and operated and have over 25 years of experience! We have the highest standards in the industry! Customer satisfaction guaranteed!

"Craig came out to provide an estimate within a week of contact. He Surveyed the attic and gave recommendations on other considerations eg sealing recessed lighting. He walked me through the process and science. I accepted the quote and contractors were on the scene within 3 days! Completed the job, despite high temperatures. Cleaned up well afterwards. Really notice the difference already. Great job!"

Ruth H on July 2019

We specialize in all your insulation needs! Closed Cell Spray Foam, Injection Foam, Blown In Insulation, Closed cavity dense packing and sound proofing, Air Sealing, Batting Insulation and Removal of Existing Insulation. We are family owned and operated and have over 25 years of experience! We have the highest standards in the industry! Customer satisfaction guaranteed!

"Craig came out to provide an estimate within a week of contact. He Surveyed the attic and gave recommendations on other considerations eg sealing recessed lighting. He walked me through the process and science. I accepted the quote and contractors were on the scene within 3 days! Completed the job, despite high temperatures. Cleaned up well afterwards. Really notice the difference already. Great job!"

Ruth H on July 2019


Avatar for Energy Aide, Div. of Coastal Windows/Doors/Exteriors

Energy Aide, Div. of Coastal Windows/Doors/Exteriors

4.69(
134
)

Energy Aide, Div. of Coastal Windows/Doors/Exteriors

4.69(
134
)
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

ENERGY AIDE a division of COASTAL WINDOWS DOORS & EXTERIORS has been serving Monmouth, Ocean and Middlesex counties in New Jersey for over 40 years. We are the premier home improvement contractor for ALL the energy efficient products and services you may need . Let us show you how blown in cellulose insulation in your attic and non masonry walls will help you be more comfortable in your home while reducing your energy bills for heating and air conditioning. In addition to blown in cellulose insulation we offer energy efficient windows, doors and siding with lifetime guarantees (products & workmanship) to make your home the envy of all your neighbors .

"Do not use Energy Aide for replacement windows! The rep that came out to measure my windows measured incorrectly by one inch. He assured me that they could build out that one inch space and that it wouldn't be a problem. The piece of wood they placed in the space below every window has rotted out. In addition they did not seal and insulate around the windows. So every winter I have to jam paper towel into the tracks on the sides of the windows to try to keep the cold air and wind to come through the windows. I had siding replaced and the contractor showed me this shoddy work. I have a lifetime guarantee on the windows from Energy Aide that states. "Energy Aide guarantees all workmanship for as long as you own your home! All guarantee work is 100% free covering both the cost of labor and materials. We will repair or replace anything found incorrect due to the original installation." I called and the owner refused to fix the horrible installation workmanship! Horrible service! Do not use Energy Aide for replacement windows. Not only did they install the windows improperly, they DO NOT back up their work! I am now replacing my windows with Anderson with a professionainstaller."

Paul M on November 2019

ENERGY AIDE a division of COASTAL WINDOWS DOORS & EXTERIORS has been serving Monmouth, Ocean and Middlesex counties in New Jersey for over 40 years. We are the premier home improvement contractor for ALL the energy efficient products and services you may need . Let us show you how blown in cellulose insulation in your attic and non masonry walls will help you be more comfortable in your home while reducing your energy bills for heating and air conditioning. In addition to blown in cellulose insulation we offer energy efficient windows, doors and siding with lifetime guarantees (products & workmanship) to make your home the envy of all your neighbors .

"Do not use Energy Aide for replacement windows! The rep that came out to measure my windows measured incorrectly by one inch. He assured me that they could build out that one inch space and that it wouldn't be a problem. The piece of wood they placed in the space below every window has rotted out. In addition they did not seal and insulate around the windows. So every winter I have to jam paper towel into the tracks on the sides of the windows to try to keep the cold air and wind to come through the windows. I had siding replaced and the contractor showed me this shoddy work. I have a lifetime guarantee on the windows from Energy Aide that states. "Energy Aide guarantees all workmanship for as long as you own your home! All guarantee work is 100% free covering both the cost of labor and materials. We will repair or replace anything found incorrect due to the original installation." I called and the owner refused to fix the horrible installation workmanship! Horrible service! Do not use Energy Aide for replacement windows. Not only did they install the windows improperly, they DO NOT back up their work! I am now replacing my windows with Anderson with a professionainstaller."

Paul M on November 2019


Avatar for Air Group

Air Group

4.68(
294
)

Air Group

4.68(
294
)
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

As a family owned business for over 50 years, we do more than serve customers, we take care of the comfort and safety of our friends, family and neighbors. Air Group has become NJ’s premiere, full service, heating, air conditioning and ventilation (HVAC) company. We provide personalized solutions both residential and commercial for every heating, air conditioning and indoor air quality application. Your comfort is an important responsibility, and we take it seriously!

"They even charge outrageously for the estimates. And tried so hard to replace the whole machine even it's not mandatory. I wouldn't use this company in the future."

Jo K on June 2023

As a family owned business for over 50 years, we do more than serve customers, we take care of the comfort and safety of our friends, family and neighbors. Air Group has become NJ’s premiere, full service, heating, air conditioning and ventilation (HVAC) company. We provide personalized solutions both residential and commercial for every heating, air conditioning and indoor air quality application. Your comfort is an important responsibility, and we take it seriously!

"They even charge outrageously for the estimates. And tried so hard to replace the whole machine even it's not mandatory. I wouldn't use this company in the future."

Jo K on June 2023


Avatar for Mark Group

Mark Group

4.54(
398
)

Mark Group

4.54(
398
)
Customers say: Super punctual
52 years of experience

Our mission is to enhance the quality of life for our customers through the installation of quality building performance improvements. Since 1974, we have helped over two million homeowners address rooms that are always too hot or too cold, eliminate unwanted drafts and reduce unnecessarily high energy bills. We pride ourselves on the quality of service that comes from well-trained, diligent and respectful employees. Moreover, our installation crew leaders are certified by the Building Performance Institute, a national organization that sets the standard for residential energy efficiency retrofit work. Let us help you get your house in line today. Extension 685 for phone. Additional DBAs - Inspired Marketing LLC, Inspired Green. Additional phone number - (517) 321-4935.

Our mission is to enhance the quality of life for our customers through the installation of quality building performance improvements. Since 1974, we have helped over two million homeowners address rooms that are always too hot or too cold, eliminate unwanted drafts and reduce unnecessarily high energy bills. We pride ourselves on the quality of service that comes from well-trained, diligent and respectful employees. Moreover, our installation crew leaders are certified by the Building Performance Institute, a national organization that sets the standard for residential energy efficiency retrofit work. Let us help you get your house in line today. Extension 685 for phone. Additional DBAs - Inspired Marketing LLC, Inspired Green. Additional phone number - (517) 321-4935.


"Kevin and his team are the best. they call back right away and come out when they say they will . Price is always fair and the guys are true pros."

Jim M on March 2018

ASK ABOUT ANGIE'S LIST DISCOUNT. LICENSE # 6991.ADDITIONAL CONTACT(856) 854-7283

"Kevin and his team are the best. they call back right away and come out when they say they will . Price is always fair and the guys are true pros."

Jim M on March 2018


Hayes Electric

5.00(
27
)

Hayes Electric

5.00(
27
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Hayes Electric is owned and operated Chris Hayes. Chris has over 25 years of experience specializing in all aspects of residential electrical work. Chris completes all the work on his own and does not use subs. Please call today!

Hayes Electric is owned and operated Chris Hayes. Chris has over 25 years of experience specializing in all aspects of residential electrical work. Chris completes all the work on his own and does not use subs. Please call today!

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Energy Efficiency Auditing questions, answered by experts

Smart home upgrades can be worth the money. Several upgrades, including smart thermostats and ceiling fans, can help reduce your energy bills. Others make life more convenient, freeing up your time to do what you love (or get more work done). And some smart home upgrades, such as entertainment systems, simply make life more enjoyable. All are worthy causes.

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

When combined with a substantial solar system, if you have enough Powerwalls, you could go off-grid and be energy independent. But remember, you'd need enough Powerwalls to power your whole home continuously because a single Powerwall can’t power large appliances for extended periods. One Powerwall is able to power an average-sized home's emergency circuits, lights, and outlets. To power large appliances, you likely need two or three Powerwalls.

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

The effect a gas fireplace has on your gas bill will depend on how often you use it, the size of the rooms you’re heating with it, and the BTUs of the fireplace itself, but generally speaking, it should only cost a few cents an hour to run it when it’s on. It will consume minimal energy when it’s “off” if you have a pilot light running constantly, but some modern gas fireplaces don’t require a constant pilot light.

The Millstone, NJ homeowners’ guide to energy efficiency auditing services

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