Top-rated french drain pros.

Get matched with top french drain pros in Merrimack, NH

There are 14 highly-rated local french drain pros.

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French drain pros in Merrimack

Avatar for Pacific Landscaping & Construction
Pacific Landscaping & Construction
123 Main St.
5.00(
2
)
Approved Pro
Pacific Landscaping & Construction
123 Main St.
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
69 local quotes requested

We specialize in all phases of landscaping design and installs, hardscaping, pavers, trees, plants, flowers, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Pacific constructed a retaining wall about 70 feet long. Work began and was finished on time. We were so impressed by this company's quality of work that we hired them a few months later for a gazebo. Results were beautiful and at a fair price. Would highly recommend them."

Brian B on December 2024

We specialize in all phases of landscaping design and installs, hardscaping, pavers, trees, plants, flowers, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Pacific constructed a retaining wall about 70 feet long. Work began and was finished on time. We were so impressed by this company's quality of work that we hired them a few months later for a gazebo. Results were beautiful and at a fair price. Would highly recommend them."

Brian B on December 2024


Avatar for All Drain Services, Inc.
All Drain Services, Inc.
140 Old Derry Rd
4.85(
164
)
Approved Pro
All Drain Services, Inc.
140 Old Derry Rd
4.85(
164
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
93 local quotes requested

All Drain Services, Inc. has been in the drain service business for over 18 years and is owned by Manny and Gloria Vega. Our commitment to customer service is unmatched. Our years of experience have taught us that in our line of business, that is what counts. Our dedication to delivering a quality job has been the backbone of our success, and this commitment is instilled in all our employees. All Drain Services, Inc. is open 24/7, including holidays. We offer emergency and regular maintenance services.

"Patrick was great. He pulled a Rat from my kitchen line so great service!"

Tim L on February 2023

All Drain Services, Inc. has been in the drain service business for over 18 years and is owned by Manny and Gloria Vega. Our commitment to customer service is unmatched. Our years of experience have taught us that in our line of business, that is what counts. Our dedication to delivering a quality job has been the backbone of our success, and this commitment is instilled in all our employees. All Drain Services, Inc. is open 24/7, including holidays. We offer emergency and regular maintenance services.

"Patrick was great. He pulled a Rat from my kitchen line so great service!"

Tim L on February 2023


Avatar for Landim Masonary and cleaning LLC.
Landim Masonary and cleaning LLC.
5.00(
16
)
Approved Pro
Landim Masonary and cleaning LLC.
5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"They were very professional and efficient. The job looks great and done in a few hours . I’m very happy with this company."

William P on May 2025

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"They were very professional and efficient. The job looks great and done in a few hours . I’m very happy with this company."

William P on May 2025


Avatar for MJ Masonry General Construction
MJ Masonry General Construction
5 Kelley Circle
5.00(
6
)
Approved Pro
MJ Masonry General Construction
5 Kelley Circle
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Everything was done on time and quicker than I thought possible."

Tom D on April 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Everything was done on time and quicker than I thought possible."

Tom D on April 2025


Avatar for SALMON FALLS NURSERY
SALMON FALLS NURSERY
511 PORTLAND ST
3.00(
1
)
Approved Pro
SALMON FALLS NURSERY
511 PORTLAND ST
3.00(
1
)
Approved Pro
Customers say: True professional
54 local quotes requested
47 years of experience

For over 40 years, Northern New Englanders have trusted Salmon Falls Nursery & Landscaping to personalize the look and function of their landscape. We specialize in the design and installation of landscape gardens and hardscapes for residential and commercial clients. In addition, we offer design and commercial landscape maintenance. We strive to earn your business in everything we do. Your beautiful, finished landscape is the result of our extensive expertise and Yankee work ethic, delivered by the friendliest staff in the business. Many of the trees and shrubs we install come from our own 200-acre Nursery in Berwick, Maine. We invite you to spend some time getting to know our work and reputation. Whatever your vision for your landscape, all of us at Salmon Falls are committed to making it a reality.

For over 40 years, Northern New Englanders have trusted Salmon Falls Nursery & Landscaping to personalize the look and function of their landscape. We specialize in the design and installation of landscape gardens and hardscapes for residential and commercial clients. In addition, we offer design and commercial landscape maintenance. We strive to earn your business in everything we do. Your beautiful, finished landscape is the result of our extensive expertise and Yankee work ethic, delivered by the friendliest staff in the business. Many of the trees and shrubs we install come from our own 200-acre Nursery in Berwick, Maine. We invite you to spend some time getting to know our work and reputation. Whatever your vision for your landscape, all of us at Salmon Falls are committed to making it a reality.


Avatar for I'Mconstruction
I'Mconstruction
35 Oregon Ave
5.00(
12
)
Approved Pro
I'Mconstruction
35 Oregon Ave
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
38 local quotes requested

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Moses was very prompt and wonderful. He came out immediately and delivered what we needed very quickly! Would use this company again in the future."

Heather D on April 2025

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Moses was very prompt and wonderful. He came out immediately and delivered what we needed very quickly! Would use this company again in the future."

Heather D on April 2025


Avatar for Garcias Landscaping
Garcias Landscaping
5.00(
20
)
Approved Pro
Garcias Landscaping
5.00(
20
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
76 local quotes requested

***We specialize in step by step design, and installation of Hardscaping projects, Patios, Retaining Walls and Fencing !*** DEDICATION, INTEGRITY, AND HARD WORK!! With more than 13 years of experience, Let us take care of your landscape services; we handle lawn mowing, tree trimming, and many other residential & commercial lawn care services. We do everything from water features, to irrigation systems, outdoor fireplaces, patios and more. Make your lawn beautiful with the help of Garcia's Landscaping, Washington's top custom landscapers. Give us a call: ** Emergency Service Available 24/7**

"Marvin & his crew did a fantastic job creating a beautiful front yard for me. They installed a paver walkway, flower beds, installed stone River rocks, mulch and planted flowers. They also placed an area of sod where I could not grow nice grass. They are friendly and want to make sure their customer is pleased with each step of their work. I plan on using them next year for my back yard patio installation and yard landscaping. I would highly recommend Garcia Landscaping. A++++"

Marie C on April 2025

***We specialize in step by step design, and installation of Hardscaping projects, Patios, Retaining Walls and Fencing !*** DEDICATION, INTEGRITY, AND HARD WORK!! With more than 13 years of experience, Let us take care of your landscape services; we handle lawn mowing, tree trimming, and many other residential & commercial lawn care services. We do everything from water features, to irrigation systems, outdoor fireplaces, patios and more. Make your lawn beautiful with the help of Garcia's Landscaping, Washington's top custom landscapers. Give us a call: ** Emergency Service Available 24/7**

"Marvin & his crew did a fantastic job creating a beautiful front yard for me. They installed a paver walkway, flower beds, installed stone River rocks, mulch and planted flowers. They also placed an area of sod where I could not grow nice grass. They are friendly and want to make sure their customer is pleased with each step of their work. I plan on using them next year for my back yard patio installation and yard landscaping. I would highly recommend Garcia Landscaping. A++++"

Marie C on April 2025


Avatar for Midcoast Aerus
Midcoast Aerus
352 WARREN AVE
5.00(
5
)
Approved Pro
Midcoast Aerus
352 WARREN AVE
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 local quotes requested

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


Avatar for Rescue Plumbing Services
Rescue Plumbing Services
44 Howe Lane
4.33(
6
)
Approved Pro
Rescue Plumbing Services
44 Howe Lane
4.33(
6
)
Approved Pro
Customers say: Quick response
40 local quotes requested
2 years of experience

Contact us today with all your plumbing issues and estimates! With over 30 years of experience, no job is ever too big or too little! We specialize in underground plumbing repairs, water heater and boiler replacements, drain cleaning, hydro jetting, and preforming diagnostic tests on sewer/septic systems. We provide 24/7 service for both commercial and residential properties!

"Never booked"

Melanie R on March 2024

Contact us today with all your plumbing issues and estimates! With over 30 years of experience, no job is ever too big or too little! We specialize in underground plumbing repairs, water heater and boiler replacements, drain cleaning, hydro jetting, and preforming diagnostic tests on sewer/septic systems. We provide 24/7 service for both commercial and residential properties!

"Never booked"

Melanie R on March 2024


Avatar for Greenleafs Garden Design
Greenleafs Garden Design
382 Dunstable Rd
4.83(
197
)
Approved Pro
Greenleafs Garden Design
382 Dunstable Rd
4.83(
197
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
38 local quotes requested

We Specialize in Garden Consulting, Design and Maintenance within 45 miles of Tyngsboro Massachusetts. We provide: Garden Consulting and Design Garden Installation: Your Design or Greenleaf’s Planting of Annuals, Perennials and Trees Mulching and Edging Weeding Drip Irrigation Low Impact Machine Work (with a Toro Dingo which is half the size of a Bobcat) Arborist Consulting Tree Health Assessments Pruning of Shrubs and Small Trees Less than 9 feet tall Our goal for is connecting the clients with their perfect garden. The important listening skills in gardening are hearing what the client desires and analyzing what their unique environment can support. We will then create a design that weaves the specific conditions together with plants that will thrive. Greenleaf’s Garden Design is dedicated to working in tandem with nature. When there are existing gems in your yard, our goal is to create a plan to incorporate those with a gardener and certified arborist’s eye.

"Rich did a great job with our garden design and follow-through. I had originally wanted to just get a quote for budgeting purposes but decided to accept his quote to do the garden install in the fall. He was very conscientious about early frost and had made a visit to apply some spray to reduce the impact of frost in late fall. He then made a trip up in the spring to check on the status of our plants to see if any plants needed to be replaced. I also had a problem with ferns growing out of control. Rich installed a barrier to keep the ferns within the area we wanted it to stay. All in all, I am very happy with what he has done and expect to use his services more in the future."

Glen N on May 2025

We Specialize in Garden Consulting, Design and Maintenance within 45 miles of Tyngsboro Massachusetts. We provide: Garden Consulting and Design Garden Installation: Your Design or Greenleaf’s Planting of Annuals, Perennials and Trees Mulching and Edging Weeding Drip Irrigation Low Impact Machine Work (with a Toro Dingo which is half the size of a Bobcat) Arborist Consulting Tree Health Assessments Pruning of Shrubs and Small Trees Less than 9 feet tall Our goal for is connecting the clients with their perfect garden. The important listening skills in gardening are hearing what the client desires and analyzing what their unique environment can support. We will then create a design that weaves the specific conditions together with plants that will thrive. Greenleaf’s Garden Design is dedicated to working in tandem with nature. When there are existing gems in your yard, our goal is to create a plan to incorporate those with a gardener and certified arborist’s eye.

"Rich did a great job with our garden design and follow-through. I had originally wanted to just get a quote for budgeting purposes but decided to accept his quote to do the garden install in the fall. He was very conscientious about early frost and had made a visit to apply some spray to reduce the impact of frost in late fall. He then made a trip up in the spring to check on the status of our plants to see if any plants needed to be replaced. I also had a problem with ferns growing out of control. Rich installed a barrier to keep the ferns within the area we wanted it to stay. All in all, I am very happy with what he has done and expect to use his services more in the future."

Glen N on May 2025

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French drain services FAQs

Landscapers typically charge $25 to $50 per person per hour, which equals around $50 to $100 per hour for a two-person crew. These rates can vary depending on your location, the size of staff needed for the job, and overall job type. For example, a larger crew will be needed for structural additions and hardscaping versus planting flowers. 

When it comes to landscapers, licensing laws vary. Landscaping architects are required to be licensed in all 50 states, whereas traditional landscaping contractors are not typically required to hold a certification. You’ll likely be working with a landscaping contractor for most residential projects. If you are redesigning your whole yard or adding in hardscape features, you will work with a landscaping architect at some point during the project. Be sure to check our state licensing tool to review the local landscaper guidelines.

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

Yes, most states require plumbers to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

We highly recommend leaving the work of replacing drain pipes to a professional plumber. Drain pipes are a key part of your plumbing system, and making mistakes during the installation or even using the wrong size pipes for your specific fixture can lead to an elevated risk of leaks and clogs. Additionally, drain pipes prevent harmful sewer gas from entering your home, so hiring a professional plumber is essential to keeping the risk of leaks and clogs low and avoid reducing your indoor air quality.

The cost to install a drain pipe is $600 on average, but the total can range between $150 and $2,000. Some cost factors that influence your project price include the type of drain, the area’s accessibility, the proximity of existing drain lines, and whether you’re installing a new drain or replacing an old one. Replacing the p-trap or s-trap under a single fixture will usually cost around $150, while replacing a main drain pipe can cost well over $2,000.

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