
Get matched with top water softener pros in Derry, NH
There are 4 highly-rated local water softener pros.
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Verified Reviews for Water Softener Service pros in Derry, NH
*The Angi rating for Water Softener Service companies in Derry, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.
*The HomeAdvisor rating for Water Softener Service companies in Derry, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.
Last update on November 18, 2025
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Merrimack Valley Plumbing & Home Services
Merrimack Valley Plumbing & Home Services
Merrimack Valley Plumbing, LLC is a locally-owned and operated company committed to providing fast, affordable, and high-quality Plumbing. We offer HVAC repair, installation, and replacement services. We specialize in heating controls and simplifying complicated plumbing and HVAC systems to make them user-friendly. We strive to find solutions that fit everyone’s comfort needs, from construction projects to air conditioner replacement.
"I hired Merrimack Valley Plumbing to install a boiler in my home, and my experience was overwhelmingly disappointing. While the boiler functions, the installation process and quality of work raised numerous red flags. I want to share my experience to help others make an informed decision when considering this company. Installation Issues Code Violations: The exhaust is less than 3 feet from the gas meter, and the holes drilled in the joists for intake and exhaust are less than 2 inches from the bottom, both of which do not meet code requirements. Improper Venting: Both the exhaust and intake vents are installed too close to the ground (not meeting the 12-inch clearance required for expected snowfall) and are too close to each other (less than the 12-inch separation required). Unsealed Penetration: The hole drilled in the siding was left unsealed, creating a potential entry point for rodents. Condensate Drain Issues: The installed condensate pump is leaking and wasn’t tested. Additionally, rather than a permanent drain installation, they daisy-chained it into a pump for a portable air conditioner. Wiring Errors: The zones for the primary bedroom and second floor were wired backward, causing overheating in both areas. Missing Outdoor Sensor: The outdoor temperature sensor, critical for proper operation, was not installed. No CO Alarm: A carbon monoxide alarm was not installed, which is essential for safety. Unprofessional Workmanship: Trash, including a metal duct pipe, was left in the crawl space near live electrical wires. Process Concerns Permit Delays: The company failed to file permits before starting work. I only discovered this after contacting the town permitting office myself. Mismanagement and Delays: The project stretched far beyond the promised timeline, with repeated excuses about missing parts and limited crew availability, despite prior assurances that the job would be completed in two days. Broken Promises: They claimed a project manager would take measurements in advance to ensure a smooth installation, but no one came. Additionally, they rescheduled initially, promising a larger crew, only to send a single plumber on the first day. Misinformation and Deception Throughout the project, I encountered multiple instances where Merrimack Valley Plumbing provided misleading or false information: - They lied about the dates permits were filed. - They claimed delivery issues caused delays, though they should have anticipated these based on the advance photos provided. - They repeatedly shifted blame rather than taking accountability for the delays and issues. Overall Experience While the boiler itself works, the installation was riddled with code violations, safety oversights, and poor workmanship. Additionally, the company’s lack of transparency and repeated dishonesty made an already frustrating situation worse. I would not recommend Merrimack Valley Plumbing to others. Their lack of professionalism, disregard for safety codes, and failure to take responsibility for their mistakes created an unnecessarily stressful and costly experience."
Paul S on March 2025
Merrimack Valley Plumbing, LLC is a locally-owned and operated company committed to providing fast, affordable, and high-quality Plumbing. We offer HVAC repair, installation, and replacement services. We specialize in heating controls and simplifying complicated plumbing and HVAC systems to make them user-friendly. We strive to find solutions that fit everyone’s comfort needs, from construction projects to air conditioner replacement.
"I hired Merrimack Valley Plumbing to install a boiler in my home, and my experience was overwhelmingly disappointing. While the boiler functions, the installation process and quality of work raised numerous red flags. I want to share my experience to help others make an informed decision when considering this company. Installation Issues Code Violations: The exhaust is less than 3 feet from the gas meter, and the holes drilled in the joists for intake and exhaust are less than 2 inches from the bottom, both of which do not meet code requirements. Improper Venting: Both the exhaust and intake vents are installed too close to the ground (not meeting the 12-inch clearance required for expected snowfall) and are too close to each other (less than the 12-inch separation required). Unsealed Penetration: The hole drilled in the siding was left unsealed, creating a potential entry point for rodents. Condensate Drain Issues: The installed condensate pump is leaking and wasn’t tested. Additionally, rather than a permanent drain installation, they daisy-chained it into a pump for a portable air conditioner. Wiring Errors: The zones for the primary bedroom and second floor were wired backward, causing overheating in both areas. Missing Outdoor Sensor: The outdoor temperature sensor, critical for proper operation, was not installed. No CO Alarm: A carbon monoxide alarm was not installed, which is essential for safety. Unprofessional Workmanship: Trash, including a metal duct pipe, was left in the crawl space near live electrical wires. Process Concerns Permit Delays: The company failed to file permits before starting work. I only discovered this after contacting the town permitting office myself. Mismanagement and Delays: The project stretched far beyond the promised timeline, with repeated excuses about missing parts and limited crew availability, despite prior assurances that the job would be completed in two days. Broken Promises: They claimed a project manager would take measurements in advance to ensure a smooth installation, but no one came. Additionally, they rescheduled initially, promising a larger crew, only to send a single plumber on the first day. Misinformation and Deception Throughout the project, I encountered multiple instances where Merrimack Valley Plumbing provided misleading or false information: - They lied about the dates permits were filed. - They claimed delivery issues caused delays, though they should have anticipated these based on the advance photos provided. - They repeatedly shifted blame rather than taking accountability for the delays and issues. Overall Experience While the boiler itself works, the installation was riddled with code violations, safety oversights, and poor workmanship. Additionally, the company’s lack of transparency and repeated dishonesty made an already frustrating situation worse. I would not recommend Merrimack Valley Plumbing to others. Their lack of professionalism, disregard for safety codes, and failure to take responsibility for their mistakes created an unnecessarily stressful and costly experience."
Paul S on March 2025

Vees Plumbing and Heating
Vees Plumbing and Heating
At Vees Pliumbing and Heating, we specialize in two essential pillars of home comfort - plumbing and HVAC services. Our comprehensive range of services is designed to meet the unique needs of your home, including: -Plumbing Repairs and Installations -HVAC System Installations and Maintenance -Air Conditioning Repairs and Service - Heating System Installations and Maintenance -Drain Cleaning and Unclogging -Water Heater Service and Installation -Furnace Service and Installation -Oil Heating Appliance Service and installation -Boiler Service and Installation Your Comfort, Our Commitment! Begin your journey to an enhanced home comfort experience with Vee's Plumbing and Heating. Contact us today at 603-312-3955 or [email protected] to schedule your plumbing and HVAC services. Discover the ease and reliability of having a dedicated partner in creating a home environment that prioritizes your comfort and convenience!
At Vees Pliumbing and Heating, we specialize in two essential pillars of home comfort - plumbing and HVAC services. Our comprehensive range of services is designed to meet the unique needs of your home, including: -Plumbing Repairs and Installations -HVAC System Installations and Maintenance -Air Conditioning Repairs and Service - Heating System Installations and Maintenance -Drain Cleaning and Unclogging -Water Heater Service and Installation -Furnace Service and Installation -Oil Heating Appliance Service and installation -Boiler Service and Installation Your Comfort, Our Commitment! Begin your journey to an enhanced home comfort experience with Vee's Plumbing and Heating. Contact us today at 603-312-3955 or [email protected] to schedule your plumbing and HVAC services. Discover the ease and reliability of having a dedicated partner in creating a home environment that prioritizes your comfort and convenience!

Midcoast Aerus
Midcoast Aerus
Midcoast Aerus is an air & water filtration company with locations in Portland, Brunswick and Rockland, Maine. We offer high end water filtration products specific to your unique water quality situation. We offer free immediate response water tests which will allow us to make recommendations to fix your water quality. More complex treatment solutions will have a full certified lab analysis followed up with the correct solution.
"Installed system. Great communication and service."
Kathleen M on July 2022
Midcoast Aerus is an air & water filtration company with locations in Portland, Brunswick and Rockland, Maine. We offer high end water filtration products specific to your unique water quality situation. We offer free immediate response water tests which will allow us to make recommendations to fix your water quality. More complex treatment solutions will have a full certified lab analysis followed up with the correct solution.
"Installed system. Great communication and service."
Kathleen M on July 2022

Better Water Bro, LLC
Better Water Bro, LLC
Free in home water testing! Review and consult of water quality after testing by professional lab. Recommendations on filters, softeners, and R/O systems. Professional installation of filter systems by fully insured and certified water treatment technician who also happens to be the owner! Work directly with Spencer, the owner, from start to finish and end up with healthy, safe water for your family and home.
Free in home water testing! Review and consult of water quality after testing by professional lab. Recommendations on filters, softeners, and R/O systems. Professional installation of filter systems by fully insured and certified water treatment technician who also happens to be the owner! Work directly with Spencer, the owner, from start to finish and end up with healthy, safe water for your family and home.
Ferris Plumbing & Heating
Ferris Plumbing & Heating
Ferris Plumbing & Heating serves all of MA + NH. Our core values are based on top notch quality work, reliable and honest service. The Ferris plumbing standard is going above & beyond, making it easier & cheaper the next time servicing needs to be completed. We specialize in Remodels (bathrooms, kitchens, laundry rooms, etc) and are equipped with a dedicated crew that has the ability to complete the entire project, from beginning to end, minimizing the contractors in your home, & reducing the project timeline. We also do ALL plumbing and heating related service & installs. All active military and veterans receive a 10% discount and customers 65+ will also receive a 10% discount. Se habla español. WE SUPPORT BLM! We offer 24/7 emergency service.
"Excellent. I called Ferris Plumbing on a Thursday afternoon and left a message. Matt returned my call the next morning. After I explained the problem, Matt said he would try to get to me that day (Friday), but he may not be able to. Meanwhile, he suggested not using that toilet. He called later that day and said he couldn't make it, but would be able to on Monday. He called me on Monday morning to confirm that he would be coming and gave me a estimated time of arrival. Matt wasn't able to come himself, but two of his plumbers arrived mid-morning. I explain all of this because Matt's communication was OUTSTANDING. I always knew the status and I knew he would be arriving as soon as he could. His two plumbers were also excellent and efficient. They replaced the toilet flange and gasket, and remounted the toilet without needing to disturb the downstairs ceiling. I should mention that the toilet is the original installation of 48 years ago. The original gasket was completely disintegrated to the point that only few small fragments of it were left. They were also very careful to protect the carpet just outside the bathroom by placing a drop cloth to protect it. Their service and work was EXCELLENT. We are considering remodeling that bathroom and Ferris Plumbing will certainly be our first choice to do the work. I highly recommend (Matt) Ferris Plumbing."
Bruce B on November 2021
Ferris Plumbing & Heating serves all of MA + NH. Our core values are based on top notch quality work, reliable and honest service. The Ferris plumbing standard is going above & beyond, making it easier & cheaper the next time servicing needs to be completed. We specialize in Remodels (bathrooms, kitchens, laundry rooms, etc) and are equipped with a dedicated crew that has the ability to complete the entire project, from beginning to end, minimizing the contractors in your home, & reducing the project timeline. We also do ALL plumbing and heating related service & installs. All active military and veterans receive a 10% discount and customers 65+ will also receive a 10% discount. Se habla español. WE SUPPORT BLM! We offer 24/7 emergency service.
"Excellent. I called Ferris Plumbing on a Thursday afternoon and left a message. Matt returned my call the next morning. After I explained the problem, Matt said he would try to get to me that day (Friday), but he may not be able to. Meanwhile, he suggested not using that toilet. He called later that day and said he couldn't make it, but would be able to on Monday. He called me on Monday morning to confirm that he would be coming and gave me a estimated time of arrival. Matt wasn't able to come himself, but two of his plumbers arrived mid-morning. I explain all of this because Matt's communication was OUTSTANDING. I always knew the status and I knew he would be arriving as soon as he could. His two plumbers were also excellent and efficient. They replaced the toilet flange and gasket, and remounted the toilet without needing to disturb the downstairs ceiling. I should mention that the toilet is the original installation of 48 years ago. The original gasket was completely disintegrated to the point that only few small fragments of it were left. They were also very careful to protect the carpet just outside the bathroom by placing a drop cloth to protect it. Their service and work was EXCELLENT. We are considering remodeling that bathroom and Ferris Plumbing will certainly be our first choice to do the work. I highly recommend (Matt) Ferris Plumbing."
Bruce B on November 2021

seacoast services
seacoast services
Seacoast services provides work in all aspects of plumbing, heating, gas piping, lawn irrigation, landscaping and snow management. the detail, thought and passion we put into all of our crafts is what stand us apart from other companies. Kevin Davis (owner) has 20 years experience in both trades and we have a team that will not only take on the small jobs but will treat them just as important as the large ones.
Seacoast services provides work in all aspects of plumbing, heating, gas piping, lawn irrigation, landscaping and snow management. the detail, thought and passion we put into all of our crafts is what stand us apart from other companies. Kevin Davis (owner) has 20 years experience in both trades and we have a team that will not only take on the small jobs but will treat them just as important as the large ones.
Blue Ribbon Water
Blue Ribbon Water
"Great Tasting, Healthy Local Water From Every Faucet" Founded by local residents who, like you, want better tasting, healthier water. Blue Ribbon Water installs and services in-home water purification systems to improve the quality and taste of your local water. Visit our website to learn more about the water in Newburyport and how to make your good water GREAT! And download our free Water Quality Report for this area. www.blueribbonwater.com
"Great Tasting, Healthy Local Water From Every Faucet" Founded by local residents who, like you, want better tasting, healthier water. Blue Ribbon Water installs and services in-home water purification systems to improve the quality and taste of your local water. Visit our website to learn more about the water in Newburyport and how to make your good water GREAT! And download our free Water Quality Report for this area. www.blueribbonwater.com

LaChance Water Filtration
LaChance Water Filtration
At LaChance Water Filtration, we understand the importance of providing your family with clean, great-tasting water. Our trusted water filtration systems are tailored to address common issues in Lakes Region homes—whether you’re dealing with hard water, iron, sediment, or other contaminants. From professional installation to ongoing maintenance, our team is committed to helping you enjoy water that’s safe, pure, and refreshing. Discover how our customized solutions can make a difference in your home’s water quality today.
At LaChance Water Filtration, we understand the importance of providing your family with clean, great-tasting water. Our trusted water filtration systems are tailored to address common issues in Lakes Region homes—whether you’re dealing with hard water, iron, sediment, or other contaminants. From professional installation to ongoing maintenance, our team is committed to helping you enjoy water that’s safe, pure, and refreshing. Discover how our customized solutions can make a difference in your home’s water quality today.

Ethical Home Pro, LLC
Ethical Home Pro, LLC
Ethical Home Pro, is a New Hampshire (NH) Heating, Cooling, Air Conditioning, Heat Pump, Ductless Mini-Split, Water Heater, Boiler, and Furnace repair, service, replacement, and maintenance Company located in Londonderry area. Ethical Home Pro employs only the best technician for air conditioner repair, furnace repair, and as well as all air conditioner replacement, furnace replacement and boiler replacement.
"I used Kyle today for maintenance on our HVAC and my dad's ductless and radiant systems. Was here about 6 hours. Incredibly friendly and thorough. Explained everything in detail. Will have them back next time for sure. TY Kyle!"
Joe L on August 2025
Ethical Home Pro, is a New Hampshire (NH) Heating, Cooling, Air Conditioning, Heat Pump, Ductless Mini-Split, Water Heater, Boiler, and Furnace repair, service, replacement, and maintenance Company located in Londonderry area. Ethical Home Pro employs only the best technician for air conditioner repair, furnace repair, and as well as all air conditioner replacement, furnace replacement and boiler replacement.
"I used Kyle today for maintenance on our HVAC and my dad's ductless and radiant systems. Was here about 6 hours. Incredibly friendly and thorough. Explained everything in detail. Will have them back next time for sure. TY Kyle!"
Joe L on August 2025
The Derry, NH homeowners’ guide to water softener services
From average costs to expert advice, get all the answers you need to get your job done.

On average, a reverse osmosis water filter costs around $2,200, but there are a few variables that impact the total price. Learn about them in this guide.
•Wondering about water treatment system costs? Learn average prices, key cost factors, and ways to save on installation and maintenance for your home.

Water softener repair costs can add up, but they’re almost always worthwhile. Use this guide to see what your project is going to cost before you get started.

No one likes that white buildup in the shower and on their cookware. Will a whole-house water filter remove the scale? We'll show you what to expect.

Water softeners remove minerals from hard water in your home and make your water more pleasant to use. Learn more about how they work here.

Water softeners and filters might sound similar, but they serve different purposes. Here’s what to know when comparing a water softener versus a water filter.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"






