Top-rated french drain pros.

Get matched with top french drain pros in Merrimack, NH

There are 12 highly-rated local french drain pros.

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    Verified french drain services reviews

Find 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
12 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


K J A S Tree Services

4.97(
29
)
Approved Pro

K J A S Tree Services

4.97(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
132 local quotes requested

As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"This company was the first to respond to my request, provided a quote and was able to perform the service within two days of my request. They were fast, efficient, and ready and willing to work."

DONNA C on October 2025

As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"This company was the first to respond to my request, provided a quote and was able to perform the service within two days of my request. They were fast, efficient, and ready and willing to work."

DONNA C on October 2025


Avatar for Landim Masonary and cleaning LLC.

Landim Masonary and cleaning LLC.

5.00(
17
)
Approved Pro

Landim Masonary and cleaning LLC.

5.00(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 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!

"I hired Landim to replace my crumbling kitchen stairs and they did such a nice job that I had them replace my front porch with a matching set and they will be doing my front walkway in a few days. Danny and his team, are personable, professional and do excellent work for a for price. If I had a larger budget, I would hire him to redo my patio and retaining wall too! Maybe next year."

Pete Y on August 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!

"I hired Landim to replace my crumbling kitchen stairs and they did such a nice job that I had them replace my front porch with a matching set and they will be doing my front walkway in a few days. Danny and his team, are personable, professional and do excellent work for a for price. If I had a larger budget, I would hire him to redo my patio and retaining wall too! Maybe next year."

Pete Y on August 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
35 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


ChrisMillerBrickPaverInstaller.com

29 Willow St
5.00(
9
)
Approved Pro

ChrisMillerBrickPaverInstaller.com

29 Willow St
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 local quotes requested

I've been in the industry for 33 years and I've owned my own company for 22 years. I'm the Owner and operator, always onsite. My company offers a 5 year Guarantee on New Paving Installs.

"Chris did an awesome. Showed up everyday on time and worked very hard and always with a positive attitude. We had to work though a few challenges with roots from a big oak tree that we wanted to save. He wad very helpful and open minded and we came up with a great option. He is coming back to do a walkway and backyard patio. His price was fair and there were no additional charges. I would highly recommend him."

Tom on October 2024

I've been in the industry for 33 years and I've owned my own company for 22 years. I'm the Owner and operator, always onsite. My company offers a 5 year Guarantee on New Paving Installs.

"Chris did an awesome. Showed up everyday on time and worked very hard and always with a positive attitude. We had to work though a few challenges with roots from a big oak tree that we wanted to save. He wad very helpful and open minded and we came up with a great option. He is coming back to do a walkway and backyard patio. His price was fair and there were no additional charges. I would highly recommend him."

Tom on October 2024


Avatar for I'Mconstruction

I'Mconstruction

35 Oregon Ave
5.00(
14
)
Approved Pro

I'Mconstruction

35 Oregon Ave
5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
41 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!

"Great work, very professional."

Denise A on August 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!

"Great work, very professional."

Denise A on August 2025


Avatar for Garcias Landscaping

Garcias Landscaping

5.00(
21
)
Approved Pro

Garcias Landscaping

5.00(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
75 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**

"Highly recommend! Excellent communication, very professional, incredible work. They took my weed-filled back yard and turned into paradise!! Beautifully landscaped now and I couldn't be happier. Price is very reasonable."

Carolyn W on May 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**

"Highly recommend! Excellent communication, very professional, incredible work. They took my weed-filled back yard and turned into paradise!! Beautifully landscaped now and I couldn't be happier. Price is very reasonable."

Carolyn W on May 2025


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
32 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


Avatar for Ryan R. Gagne Landscaping Co., LLC

Ryan R. Gagne Landscaping Co., LLC

197 Marsh Road
4.92(
13
)
Approved Pro

Ryan R. Gagne Landscaping Co., LLC

197 Marsh Road
4.92(
13
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
43 local quotes requested

Gagne Landscaping is a full service Landscaper that self performs most work. Any subcontractors used have been with us for years. We offer cash incentives for referrals from our customers.

"Great crew."

Keith C on August 2022

Gagne Landscaping is a full service Landscaper that self performs most work. Any subcontractors used have been with us for years. We offer cash incentives for referrals from our customers.

"Great crew."

Keith C on August 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
63 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

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French Drains questions, answered by experts

You can try several easy methods to unclog a drain, one of the easiest and most effective of which is to use a mixture of baking soda and vinegar. This will help dislodge and dissolve the clog to move it down the drain pipes. Pour 1/2 cup baking soda into the drain, followed by 1/2 cup of white vinegar. Dump several cups of boiling water (or hot water if you have PVC pipes) into the drain and let sit for up to one hour. Run hot water to clear the drain.

Snakes can occasionally enter homes through shower drains, although it’s quite rare. This can happen when they follow sewer pipes or accidentally find their way into plumbing systems. To minimize the risk, consider installing drain covers or stoppers on your shower drains. Always keep drains closed when they’re not in use, especially in areas where snakes are known to be active.

You’ll likely pay between $300 and $450 to unclog your toilet with Roto-Rooter. However, the price could change depending on if the clog has caused a lot of damage, which your plumbing pro will want to inspect during your service appointment. Keep in mind that you won’t get a quote from Roto-Rooter over the phone. They have to send a pro out for an in-person cost estimate. You can also attempt to snake your own clog for a lot less, and simple drain snakes cost no more than $50.

In some cases, operating a snake can damage your drain and pipes. This depends on the overall condition of your pipes and how gently you operate the auger. For instance, older galvanized pipes covered in zinc are susceptible to scratches when using a drain snake. Additionally, it’s common for newbies to apply too much force when extending the snake, leading to scratches and related damage. You can also crack the porcelain with an electric auger if you’re snaking a toilet drain. If you’re using a manual snake or auger, the risk is minimal.

On average, a plumber will take 30 minutes to two hours to clear a clogged drain. If the clog is located close to the drain or an access point and isn’t severe, the project will take about half an hour. If the clog is deep within your plumbing system or is a severe blockage, it can take two or more hours to remove the clog. For this reason, main line clogs tend to take longer, usually between two and three hours.

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The Merrimack, NH homeowners’ guide to french drain services

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