Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Williamstown, NY

Enter your zip and get matched with up to 5 pros

Need a pro for your energy efficiency auditing project in Williamstown, NY?

Select your specific project to find the pro for you.

Verified Reviews for Energy Efficiency Auditing pros in Williamstown, NY

*The Angi rating for Energy Efficiency Auditing companies in Williamstown, NY 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 Williamstown, NY 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 December 13, 2025

Find Energy efficiency auditors in Williamstown

BREATHE EASY of CNY Inc

4.93(
28
)

BREATHE EASY of CNY Inc

4.93(
28
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

For more than 25 years, Breathe Easy has served the CNY area with high-quality heating and cooling services with the friendly, approachable attitude of a family-owned business. We're here to help provide true comfort in your home, no matter the season! *We provide our customers with a system and solution that fits their unique needs. * We maintain a high level of quality among our staff. * We do the job right the first time. * Local - forget the big names where you're just a number, and opt for a local company that cares about the impact left on our community.

"Taylor and Kyle were great! Good work and very informative."

Stephen K on February 2025

For more than 25 years, Breathe Easy has served the CNY area with high-quality heating and cooling services with the friendly, approachable attitude of a family-owned business. We're here to help provide true comfort in your home, no matter the season! *We provide our customers with a system and solution that fits their unique needs. * We maintain a high level of quality among our staff. * We do the job right the first time. * Local - forget the big names where you're just a number, and opt for a local company that cares about the impact left on our community.

"Taylor and Kyle were great! Good work and very informative."

Stephen K on February 2025

Avatar for Pace Windows & Doors

Pace Windows & Doors

4.81(
129
)

Pace Windows & Doors

4.81(
129
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Pace Window and Door Corp. was founded in 1985 by Steve Abramson. Pace is a USA manufacturer of the highest quality replacement windows and doors The company also manufactures and installs top-of-the-line patio entry, storm doors, siding. Pace is known for its 100% lifetime transferable guarantee. The Pace timeline details the various milestones that have allowed us to thrive in today’s window marketplace. Below, find out why Pace Window and Door is unique and has become a market leader in so many facets of your home. Additional address: 7224 Victor-Pittsford Rd Victor, NY 14564.

"Pace was great from the sales person Dan all the way through the install. I was so happy with my first install that there was no doubt I was calling them to do the rest of my windows in my house. I’ve recommended them to both of my brothers who also ended up using Pace, so there’s no one else I’d go to in order to get new windows through."

Anthony P on June 2023

Pace Window and Door Corp. was founded in 1985 by Steve Abramson. Pace is a USA manufacturer of the highest quality replacement windows and doors The company also manufactures and installs top-of-the-line patio entry, storm doors, siding. Pace is known for its 100% lifetime transferable guarantee. The Pace timeline details the various milestones that have allowed us to thrive in today’s window marketplace. Below, find out why Pace Window and Door is unique and has become a market leader in so many facets of your home. Additional address: 7224 Victor-Pittsford Rd Victor, NY 14564.

"Pace was great from the sales person Dan all the way through the install. I was so happy with my first install that there was no doubt I was calling them to do the rest of my windows in my house. I’ve recommended them to both of my brothers who also ended up using Pace, so there’s no one else I’d go to in order to get new windows through."

Anthony P on June 2023

Avatar for Isaac Heating & Air Conditioning

Isaac Heating & Air Conditioning

4.67(
95
)

Isaac Heating & Air Conditioning

4.67(
95
)
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Since 1945, Isaac Heating and Air Conditioning has diligently, grown and evolved to meet the needs of our many valuable customers. We focus on Safety, Uncompromising Integrity, Accountability, Excellence, Outstanding Service and Balance.

"No they broke my mothers stairs and scratched her floor and I have them on the ring saying that they did it but call after call no response and they where b******* about the sales person the whole time they where there"

Joel W on May 2025

Since 1945, Isaac Heating and Air Conditioning has diligently, grown and evolved to meet the needs of our many valuable customers. We focus on Safety, Uncompromising Integrity, Accountability, Excellence, Outstanding Service and Balance.

"No they broke my mothers stairs and scratched her floor and I have them on the ring saying that they did it but call after call no response and they where b******* about the sales person the whole time they where there"

Joel W on May 2025

Avatar for Standard

Standard

5.00(
8
)

Standard

5.00(
8
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Let Standard help reduce your home heating costs with new insulation, more efficient heating and cooling solutions, and free HVAC service calls for homeowners in the Mohawk Valley. Founded in 1928 and based in Marcy, New York, Standard is the oldest and largest insulation companies and HVAC contractors in the region, offering full-service installation and repair of home heating and cooling systems. We’ve helped homeowners save thousands by participating in assistance programs such as EmPower New York, NYS Clean Heat, and Comfort Home. Schedule a free consultation and learn how you can save money today!

Let Standard help reduce your home heating costs with new insulation, more efficient heating and cooling solutions, and free HVAC service calls for homeowners in the Mohawk Valley. Founded in 1928 and based in Marcy, New York, Standard is the oldest and largest insulation companies and HVAC contractors in the region, offering full-service installation and repair of home heating and cooling systems. We’ve helped homeowners save thousands by participating in assistance programs such as EmPower New York, NYS Clean Heat, and Comfort Home. Schedule a free consultation and learn how you can save money today!

Avatar for GreenHomes America

GreenHomes America

4.65(
26
)

GreenHomes America

4.65(
26
)
Customers say: Quality work
45 years of experience

You spend a lot of money on your home and you deserve for your family to be comfortable, safe, and healthy in it all year long. However, if yours is like most homes in the U.S., it has inherent construction shortfalls that cause common comfort and energy efficiency problems including hot and cold spots, drafts, moisture and humidity, poor air quality, and excessive dust. GreenHomes America offers residential home performance solutions that increase in-home comfort, health, and safety and significantly reduce energy usage and utility bills. We apply building science principles and sophisticated diagnostic equipment to quickly pinpoint causes of common problems and prescribe cost-effective solutions that resolve them permanently. What sets GreenHomes apart from the many other residential building contractors is its innovative use of an integrated, whole-house approach to home performance and energy efficiency. Our unique Home Performance methodology allows GreenHomes to go beyond the usual HVAC and specialty contractor guesswork and quickly and accurately solve a home’s comfort and energy efficiency issues. Beyond the principles of Home Performance, GreenHomes business model also employs a unique business methodology built on strict adherence to quality, process, technology, education, and standards. This exclusive methodology allows GreenHomes to raise the bar on service delivery for the entire industry by consistently providing high quality service to every customer every time. 40 employees. no subs. Cost determined by the job. No travel charges. Service fees apply. License #6788b. May contact through email.

You spend a lot of money on your home and you deserve for your family to be comfortable, safe, and healthy in it all year long. However, if yours is like most homes in the U.S., it has inherent construction shortfalls that cause common comfort and energy efficiency problems including hot and cold spots, drafts, moisture and humidity, poor air quality, and excessive dust. GreenHomes America offers residential home performance solutions that increase in-home comfort, health, and safety and significantly reduce energy usage and utility bills. We apply building science principles and sophisticated diagnostic equipment to quickly pinpoint causes of common problems and prescribe cost-effective solutions that resolve them permanently. What sets GreenHomes apart from the many other residential building contractors is its innovative use of an integrated, whole-house approach to home performance and energy efficiency. Our unique Home Performance methodology allows GreenHomes to go beyond the usual HVAC and specialty contractor guesswork and quickly and accurately solve a home’s comfort and energy efficiency issues. Beyond the principles of Home Performance, GreenHomes business model also employs a unique business methodology built on strict adherence to quality, process, technology, education, and standards. This exclusive methodology allows GreenHomes to raise the bar on service delivery for the entire industry by consistently providing high quality service to every customer every time. 40 employees. no subs. Cost determined by the job. No travel charges. Service fees apply. License #6788b. May contact through email.

ZeroDraft

4.24(
42
)

ZeroDraft

4.24(
42
)
Customers say: Quality work
21 years of experience

Additional address - 20 Petra Lane, Sec 6, Albany, NY 12205. Additional phones - (518) 456-9376.

"I rented for seven years. It was a constant nightmare. No pest control, maintenance requests are just ignored or months late, rent hikes are constant. Total scum lords. Rent hikes costed me $700 monthly ($100 more each year) Told me to pay for my own pest control for the rodents and roaches at this property and won’t pay me back (totally breaks the law and doesn’t care) Using rent fixing as well. Run for the hills, hopefully these terrible deplorable peoples will shut their doors soon."

John S on August 2024

Additional address - 20 Petra Lane, Sec 6, Albany, NY 12205. Additional phones - (518) 456-9376.

"I rented for seven years. It was a constant nightmare. No pest control, maintenance requests are just ignored or months late, rent hikes are constant. Total scum lords. Rent hikes costed me $700 monthly ($100 more each year) Told me to pay for my own pest control for the rodents and roaches at this property and won’t pay me back (totally breaks the law and doesn’t care) Using rent fixing as well. Run for the hills, hopefully these terrible deplorable peoples will shut their doors soon."

John S on August 2024

Avatar for Upstate Alternative Energy

Upstate Alternative Energy

5.00(
1
)

Upstate Alternative Energy

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Design and Installation of Solar energy producs and Geothermal systems.

Design and Installation of Solar energy producs and Geothermal systems.

Impact Home Performance

5.00(
1
)

Impact Home Performance

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Impact Home Performance is a small local business specializing in energy efficiency upgrades. We have experience in all phases of home remodeling and repair. We look at the whole house to help us figure out what upgrades are necessary. We use state of the art diagnostic equipment to assess the needs of the house.

Impact Home Performance is a small local business specializing in energy efficiency upgrades. We have experience in all phases of home remodeling and repair. We look at the whole house to help us figure out what upgrades are necessary. We use state of the art diagnostic equipment to assess the needs of the house.

Showing 1-10 of 26
Energy Efficiency Auditing questions, answered by experts

While parts of the appraisal are out of your control, there are some things you can do to potentially raise the home’s value. You can make necessary repairs and upgrades before the appraiser visits—an appraiser can only value what is currently part of the home, not its potential. You can also provide the appraiser with the cost of recent upgrades. The appraiser will likely increase the value of your home by about 50% or more of what you paid for those improvements.

Yes, with features like LED lighting and variable speed controls for efficiency.

Yes, pros suggest units with high EER ratings for energy savings.

Replacing a window frame will improve your home’s energy efficiency if the old frame is cracked or damaged in a way that allows unconditioned air from the outside into your living space or if you upgrade to a more energy-efficient window frame material. Aluminum is the least energy-efficient window frame material, followed by vinyl and wood. Fiberglass and composite frames are the most energy-efficient.

Smart glass doesn’t use a lot of electricity, and you can expect a standard window to add between $1 and $2 per year to your electric bills. Smart glass is proof that energy-efficient windows work. Although your smart windows may consume a little energy to operate, they can save enough energy to offset the costs. If you’re concerned about the minimal bump to your electricity consumption, you can opt for smart tint, which doesn’t require electricity to work.

The Williamstown, NY homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"