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  • Verified reviews icon50
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Mercer Island

Avatar for Seatown Electric Plumbing Heating & Air

Seatown Electric Plumbing Heating & Air

4.85(
1,282
)
Approved Pro

Seatown Electric Plumbing Heating & Air

4.85(
1,282
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
12 years of experience

As a provider of essential services here in the Puget Sound Region, Seatown Electric Plumbing Heating & Air remains open to serve you. To ensure the safety of our customers our technicians' health is monitored closely and we are following the highest safety recommendations, including the use of masks and protective gloves. The health and wellness of our customers and employees will always come first. We are here for you! Seatown provides Electrical, Plumbing, Heating, and A/C services in the Greater Puget Sound region, concentrating in King and Snohomish county. With our customer satisfaction guarantee, you can rest assured that your system will outlast industry standards, providing safety, and comfort for your home, for many years to come. You will never have to search for a new electrical, plumbing or heating and air contractor again. That is our promise. Seatown continues to lead Angie's List, with overall "A" reviews, by serving one customer at a time and giving top-notch service. We hope to build long-lasting customer relationships, throughout Washington State. Our world-class technicians will show up to your door in clean uniforms, with visible ID and state certification, trained to over-exceed your expectations, and never leaving a mess behind. We are Seatown Electric Plumbing Heating And Air, Washington's all in one contractor.

"It was way too expensive for the work that was performed. They originally said that the pipes leading up to the faucet may need to be replaced and the wall opened up. Previously before engaging them. I asked for a possible quote for how much it would cost and they told me that it was up to the technician. When they came out to do the work that they would determine the amount. I asked the technician how much it would and he told me that it was up to the company to decide for how much the work would cost. When I contacted the company they told me again that it would be up to the technician to determine the how much it would cost by checking the amount of work. I could not get an answer from both of them because they would just keep passing each other on who to ask for the quote. After the project was completed, I was given the bill of about $750+ to replace the faucet, to replace the hoses and the two knobs roughly $350+ each. When I called the company about the price, I was transferred to the dispatchers and was told that I need to talk to the technician for it."

Peggy M on September 2025

As a provider of essential services here in the Puget Sound Region, Seatown Electric Plumbing Heating & Air remains open to serve you. To ensure the safety of our customers our technicians' health is monitored closely and we are following the highest safety recommendations, including the use of masks and protective gloves. The health and wellness of our customers and employees will always come first. We are here for you! Seatown provides Electrical, Plumbing, Heating, and A/C services in the Greater Puget Sound region, concentrating in King and Snohomish county. With our customer satisfaction guarantee, you can rest assured that your system will outlast industry standards, providing safety, and comfort for your home, for many years to come. You will never have to search for a new electrical, plumbing or heating and air contractor again. That is our promise. Seatown continues to lead Angie's List, with overall "A" reviews, by serving one customer at a time and giving top-notch service. We hope to build long-lasting customer relationships, throughout Washington State. Our world-class technicians will show up to your door in clean uniforms, with visible ID and state certification, trained to over-exceed your expectations, and never leaving a mess behind. We are Seatown Electric Plumbing Heating And Air, Washington's all in one contractor.

"It was way too expensive for the work that was performed. They originally said that the pipes leading up to the faucet may need to be replaced and the wall opened up. Previously before engaging them. I asked for a possible quote for how much it would cost and they told me that it was up to the technician. When they came out to do the work that they would determine the amount. I asked the technician how much it would and he told me that it was up to the company to decide for how much the work would cost. When I contacted the company they told me again that it would be up to the technician to determine the how much it would cost by checking the amount of work. I could not get an answer from both of them because they would just keep passing each other on who to ask for the quote. After the project was completed, I was given the bill of about $750+ to replace the faucet, to replace the hoses and the two knobs roughly $350+ each. When I called the company about the price, I was transferred to the dispatchers and was told that I need to talk to the technician for it."

Peggy M on September 2025


Avatar for Evergreen Energy Services

Evergreen Energy Services

4.93(
20
)
Approved Pro

Evergreen Energy Services

4.93(
20
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

With many years of experience serving the Washington's surrounding area, Evergreen Energy Service is your solution for all your Home energy needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

"Kirk performed a thorough blower door test, walking me through every point that he later included in his report. With his report in hand, I have confidence in my understanding of the priority improvements that I can make to my sealing my home's envelope, which is precisely what I'd hired him for."

Garrett M on October 2023

With many years of experience serving the Washington's surrounding area, Evergreen Energy Service is your solution for all your Home energy needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

"Kirk performed a thorough blower door test, walking me through every point that he later included in his report. With his report in hand, I have confidence in my understanding of the priority improvements that I can make to my sealing my home's envelope, which is precisely what I'd hired him for."

Garrett M on October 2023


Avatar for Thunderbird HVAC

Thunderbird HVAC

5.00(
8
)

Thunderbird HVAC

5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Thunderbird HVAC is a licensed and insured, family owned and operated HVAC company that provides installation and service for light commercial and residential heating and cooling systems. We pride ourselves on meeting the unique needs of each of our customers and providing exceptional customer service. Our team of experienced technicians is dedicated to ensuring that your HVAC system is running efficiently and effectively. Schedule your free estimate today. Ask about our services including dual fuel with google nest thermostat. Discounts include but not limited to (and you can combine!)Cash, Returning Customers, Referrals, Senior Citizen, and Veteran discounts!

"Awesome. I would definitely recommend them to anyone needing a new Heat pump or troubleshooting problems with their heat or ac. They are great. Thankyou so much"

Jason W on May 2025

Thunderbird HVAC is a licensed and insured, family owned and operated HVAC company that provides installation and service for light commercial and residential heating and cooling systems. We pride ourselves on meeting the unique needs of each of our customers and providing exceptional customer service. Our team of experienced technicians is dedicated to ensuring that your HVAC system is running efficiently and effectively. Schedule your free estimate today. Ask about our services including dual fuel with google nest thermostat. Discounts include but not limited to (and you can combine!)Cash, Returning Customers, Referrals, Senior Citizen, and Veteran discounts!

"Awesome. I would definitely recommend them to anyone needing a new Heat pump or troubleshooting problems with their heat or ac. They are great. Thankyou so much"

Jason W on May 2025


GreenInsulating.com

No reviews yet

GreenInsulating.com

No reviews yet
15 years of experience

Providing Significant Energy Savings and Emission Reductions in Existing Buildings. Energy Management Residential New Construction Attic and Crawl Space Insulation Commercial Mechanical Insulating Pipes Ducts Equipment Noise Control

Providing Significant Energy Savings and Emission Reductions in Existing Buildings. Energy Management Residential New Construction Attic and Crawl Space Insulation Commercial Mechanical Insulating Pipes Ducts Equipment Noise Control


Avatar for Cloud9 Heating & Air

Cloud9 Heating & Air

5.00(
5
)

Cloud9 Heating & Air

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are Puget Sound's top quality heating and cooling (HVAC) company. We bring attention to detail and professionalism to each and every job. At Cloud9, we strive to make every job as easy and seamless as possible for our customers. We offer installation services ranging from Heating, Air Conditioning, Ductless Heat Pumps and Water Heaters. We treat every home as if it were our own.

"We are very satisfied with the work that Mike and his team did. They were very professional, always on time, knowledgeable, and did a very clean job. They surveyed the site 2 times in great detail and completed the installation of our heat pump faster than expected."

Onur K on May 2023

We are Puget Sound's top quality heating and cooling (HVAC) company. We bring attention to detail and professionalism to each and every job. At Cloud9, we strive to make every job as easy and seamless as possible for our customers. We offer installation services ranging from Heating, Air Conditioning, Ductless Heat Pumps and Water Heaters. We treat every home as if it were our own.

"We are very satisfied with the work that Mike and his team did. They were very professional, always on time, knowledgeable, and did a very clean job. They surveyed the site 2 times in great detail and completed the installation of our heat pump faster than expected."

Onur K on May 2023


Avatar for RSS Solar

RSS Solar

No reviews yet

RSS Solar

No reviews yet
Free onsite estimate

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.


Avatar for United Solar

United Solar

No reviews yet

United Solar

No reviews yet
3 years of experience

United Solar is the solar installation division within United Seattle and offers the services of home electrification in Western Washington. Please see our our list of services for what is included in our umbrella of offerings to electrify your home.

United Solar is the solar installation division within United Seattle and offers the services of home electrification in Western Washington. Please see our our list of services for what is included in our umbrella of offerings to electrify your home.


Avatar for Sage Conservation

Sage Conservation

No reviews yet

Sage Conservation

No reviews yet
19 years of experience

Save water save money feel good. Seattle's very own water and energy conservation service. We cut your carbon footprint with a fun, quick and easy process you'll want to tell all your friends about. We tune-up your irrigation system, home water fixtures, lighting, etc. to use water more creatively. Established in 2006. Sage Conservation is the conservation focused branch of Sage and Stone LLC, a landscape design build firm. We originally began by retrofitting inefficient irrigation systems. We then spent several years testing every available product, and are proud to offer only the highest performing products to help you save water and energy. We are a female, minority owned business that is owner operated.

Save water save money feel good. Seattle's very own water and energy conservation service. We cut your carbon footprint with a fun, quick and easy process you'll want to tell all your friends about. We tune-up your irrigation system, home water fixtures, lighting, etc. to use water more creatively. Established in 2006. Sage Conservation is the conservation focused branch of Sage and Stone LLC, a landscape design build firm. We originally began by retrofitting inefficient irrigation systems. We then spent several years testing every available product, and are proud to offer only the highest performing products to help you save water and energy. We are a female, minority owned business that is owner operated.


"The service provider was quick, professional, friendly, and did excellent work. I would recommend them and use them again in the future."

Donald B on August 2018

Service and installation of all residential heating and air conditions equipment. Including but not limited to furnaces, heat pumps, air conditioners, water heaters and tankless water heaters.

"The service provider was quick, professional, friendly, and did excellent work. I would recommend them and use them again in the future."

Donald B on August 2018


Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

No reviews yet

USA Alarm Service, Inc

No reviews yet
29 years of experience

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

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Energy Efficiency Auditing questions, answered by experts

The extra insulation helps reduce energy costs by minimizing drafts and temperature exchange between indoors and outdoors.

Motion-sensor lights use one watt while on standby and five watts while turned on. They’re usually on for one hour over a 24-hour period, bringing the total wattage to about 28 watts per day. LED lights use around 6.5 to 8 watts while on. If you leave an LED light on all night, with night ranging from 10 to 14 hours, you’re looking at using 65 to 112 watts a night. You can minimally cut your wattage in half by switching to a motion-sensor light.

Gas fireplaces use either natural gas or propane—both of which will increase your energy expenses. On average, running a gas fireplace costs $400 to $640 per year; however, these costs can vary significantly depending on the fuel price in your area and the frequency of fireplace use. If you’re looking for a more energy-efficient option, consider switching to an electric fireplace.

There are several strategic ways to lower your home insurance premium. The primary one is to shop around and get quotes every few years to make sure you’re getting the best deal. Also, sometimes bundling your auto and homeowner’s insurance will get you a discount on both. Finally, try to keep your credit score up; many homeowner insurance companies use credit scores to generate quotes.

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.

The Mercer Island, WA homeowners’ guide to energy efficiency auditing services

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

What do you need done? We’ll find top pros.
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