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Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018


"The gentleman that responded to our call on a Saturday morning was very curtious and professional. He did a wonderful job over the course of two days due to the difficulty of our situation. I will definitely recommend him to anybody that has the same problem as we had."

jessica f on March 2019

E W Gladden Plumbing & Piping

"The gentleman that responded to our call on a Saturday morning was very curtious and professional. He did a wonderful job over the course of two days due to the difficulty of our situation. I will definitely recommend him to anybody that has the same problem as we had."

jessica f on March 2019


Avatar for Comfort First Heating & Cooling

Comfort First Heating & Cooling

4.64(
498
)

Comfort First Heating & Cooling

4.64(
498
)
Customers say: Super punctual
16 years of experience

Comfort First Heating and Cooling takes great pleasure in being the friendliest, most caring and competent air conditioning and heating service, repair and installation company in North Carolina & Virginia. Our more than 20 years of residential and commercial experience gives us the confidence needed to boldly offer the most aggressive,thoughtful Written Guarantee in the industry. Everything we do, from answering your first call to seeing the savings in your electricity after our visit, is meticulously planned because we feel that every detail of your comfort is valuable. If you need air conditioning and heating service, repair or installation and live in central North Carolina, we have technicians locally that can serve you. Contact Us today to find the people and comfort you can count on! Financing is available and Military discounts.

"We got assigned this vendor through American Home Shield on June 7. Our AC unit was not holding 79 degrees in our upper floor. The tech came 5 days later and diagnosed a leak in the evaporator coil. They replaced it one week later ($3.5k). The following day, the unit was functioning worse than prior to the installation not holding 80 degrees in any of the floors. We called and came again 3 days later. One would expect they would come earlier as it was a follow up. They told us they need it to re-adjust the temperature of the compressor, apparently (they told us) this is common after coil replacement (why this was not done first? no idea!). One day after the visit, the unit still cannot hold 80 degrees in both floors. It is obvious the tech has no idea of what he is doing. At this point I am not sure the initial diagnosis and replacement of the coil (with the consequent fees of adding new refrigerant, $1800 + hand labor+ modifications, all not covered by AHS) was correct. Extremely frustrated experience. I would not recommend this vendor."

Paloma B on June 2025

Comfort First Heating and Cooling takes great pleasure in being the friendliest, most caring and competent air conditioning and heating service, repair and installation company in North Carolina & Virginia. Our more than 20 years of residential and commercial experience gives us the confidence needed to boldly offer the most aggressive,thoughtful Written Guarantee in the industry. Everything we do, from answering your first call to seeing the savings in your electricity after our visit, is meticulously planned because we feel that every detail of your comfort is valuable. If you need air conditioning and heating service, repair or installation and live in central North Carolina, we have technicians locally that can serve you. Contact Us today to find the people and comfort you can count on! Financing is available and Military discounts.

"We got assigned this vendor through American Home Shield on June 7. Our AC unit was not holding 79 degrees in our upper floor. The tech came 5 days later and diagnosed a leak in the evaporator coil. They replaced it one week later ($3.5k). The following day, the unit was functioning worse than prior to the installation not holding 80 degrees in any of the floors. We called and came again 3 days later. One would expect they would come earlier as it was a follow up. They told us they need it to re-adjust the temperature of the compressor, apparently (they told us) this is common after coil replacement (why this was not done first? no idea!). One day after the visit, the unit still cannot hold 80 degrees in both floors. It is obvious the tech has no idea of what he is doing. At this point I am not sure the initial diagnosis and replacement of the coil (with the consequent fees of adding new refrigerant, $1800 + hand labor+ modifications, all not covered by AHS) was correct. Extremely frustrated experience. I would not recommend this vendor."

Paloma B on June 2025


Avatar for Advanced Water Systems Inc

Advanced Water Systems Inc

4.94(
16
)

Advanced Water Systems Inc

4.94(
16
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are the Authorized, Independent Kinetico dealer for all of Eastern and Central NC and Southeastern VA. We are family-owned and operated for the past 32 years. We have grown to have 10 different offices to serve you with all your water quality needs. We are experts in water quality issues and aim to educate our customers about their water. We solve any water problem with any budget and with the best equipment available. We accept major credit cards.

"I got six estimates for replacement of my 12-year-old water heater. I went with Advanced Water Systems of Coastal NC-VA. I’m extremely happy with the purchase and installation of my new water heater. Advanced Water Systems of Coastal NC-VA impressed me at every step of the process. They provided a fair estimate, professional communication and installation, answered all my questions during the process, and cleaned up after they were done. The installation team installed a new gas shut off valve and an expansion tank, in addition to the water heater, and didn’t add on extra charges like some companies. They also insulated the pipes. I’m thankful that everything is now up to code. The plumber explained the purpose of the expansion tank, other companies didn’t even mention one. Both of the people doing the install were highly knowledgeable and efficient. I highly recommend Advanced Water Systems of Coastal NC-VA."

John F on January 2022

We are the Authorized, Independent Kinetico dealer for all of Eastern and Central NC and Southeastern VA. We are family-owned and operated for the past 32 years. We have grown to have 10 different offices to serve you with all your water quality needs. We are experts in water quality issues and aim to educate our customers about their water. We solve any water problem with any budget and with the best equipment available. We accept major credit cards.

"I got six estimates for replacement of my 12-year-old water heater. I went with Advanced Water Systems of Coastal NC-VA. I’m extremely happy with the purchase and installation of my new water heater. Advanced Water Systems of Coastal NC-VA impressed me at every step of the process. They provided a fair estimate, professional communication and installation, answered all my questions during the process, and cleaned up after they were done. The installation team installed a new gas shut off valve and an expansion tank, in addition to the water heater, and didn’t add on extra charges like some companies. They also insulated the pipes. I’m thankful that everything is now up to code. The plumber explained the purpose of the expansion tank, other companies didn’t even mention one. Both of the people doing the install were highly knowledgeable and efficient. I highly recommend Advanced Water Systems of Coastal NC-VA."

John F on January 2022


"I have had a water filtration system for years for excessive iron. I went through three companies and 1000’s of dollars until I finally found Caldwell’s Water by accident when I was exploring the possibility of digging a new well. Since then, I’ve had the best water that I’ve had in years. Everyone was helpful, understanding, and willing to work with me to get it right. Would definitely recommend them!"

Sonya B on March 2022

We serve WNC with issues in their well or city water ranging from iron, sediment, odor, taste, water softeners, UV light sterilization systems, automatic backwashing water filters, and more.

"I have had a water filtration system for years for excessive iron. I went through three companies and 1000’s of dollars until I finally found Caldwell’s Water by accident when I was exploring the possibility of digging a new well. Since then, I’ve had the best water that I’ve had in years. Everyone was helpful, understanding, and willing to work with me to get it right. Would definitely recommend them!"

Sonya B on March 2022



Avatar for DrinkFromTheRock.com

DrinkFromTheRock.com

No reviews yet

DrinkFromTheRock.com

No reviews yet
14 years of experience

We specialize in providing quality services to our customers. We offer complete water filtration systems to residential and commercial customers. Our products are cost effective reliable.

We specialize in providing quality services to our customers. We offer complete water filtration systems to residential and commercial customers. Our products are cost effective reliable.




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Water Softeners questions, answered by experts

Water softener versus water filter: which one should you choose? If you want to remove minerals, opt for a softener. If you want to remove a wide range of contaminants, go for a filter. Or, you can install both.

It’s not a good idea to oversize your water softener. Doing so will mean the tank doesn’t get full, which can lead to channeling. This leads to a large portion of the resin beads not being utilized and the beads at the bottom of the tank being overused. Over time, this will reduce the efficiency of your system, not to mention that the upfront cost of an oversized softener is unnecessarily high. If you have a timed regeneration cycle rather than a demand-based one, you’ll also spend far more on replacing salt than you need to.

The main difference between water softeners and water filters is that softeners remove hard minerals from the water, while filters have more of a blanket effect, removing all contaminants above a certain size. Filters are also much less expensive to install and protect against bacteria and other impurities. Depending on your water supply, you may need both.

Yes, it’s fine to drink softened water. However, if you follow a low-sodium diet or have high blood pressure or sodium-related health concerns, make sure to speak with your doctor beforehand. If they advise against drinking water that’s been softened with sodium, you might be able to use potassium in your water softener instead.

Some shower water softeners are effective, but this isn’t always the case. Most shower filters only filter out chlorine, not hard minerals like calcium. Other shower filters can't handle the demand in homes with very hard water. It's also important to change the filters on your shower filters. Failure to regularly swap out old filters will make the filter ineffective over time. 

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