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Eddy A on July 2021
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Eddy A on July 2021
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Septic system installers and replacers in Merrimack
Tom Howe Septic Systems and Excavation
29 Patten Road
Tom Howe Septic Systems and Excavation
29 Patten Road
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
57 years of experience
A few services we provide are residential and commercial septic pumping, and drain field install/repair. We are conveniently located to serve Hillsborough County. We are licensed, bonded and insured. Tom Howe Septic Systems is a family-owned and operated business that has served the Merrimack area since 1968.
"A"
Tariq S on May 2022
A few services we provide are residential and commercial septic pumping, and drain field install/repair. We are conveniently located to serve Hillsborough County. We are licensed, bonded and insured. Tom Howe Septic Systems is a family-owned and operated business that has served the Merrimack area since 1968.
"A"
Tariq S on May 2022
Corriveau Construction Company
13 S Bow Rd
Corriveau Construction Company
13 S Bow Rd
Customers say: Quick response
29 local quotes requested
53 years of experience
Bob has been in business for 50 years. Started working on his own property and was disappointed in the quality of other people's work so he decided to go leave a career in electronics sales and into business himself.Became a career in building and developing.Built subdivisions.Built roads and all site work for new homes.
"This is the best construction pro I had in my life. If there is anyone's looking for the best construction crew this company is the best. I've never had anyone in my life as good as Corriveau construction company. They went beyond and above what I expected. "
Bill A on September 2025
Bob has been in business for 50 years. Started working on his own property and was disappointed in the quality of other people's work so he decided to go leave a career in electronics sales and into business himself.Became a career in building and developing.Built subdivisions.Built roads and all site work for new homes.
"This is the best construction pro I had in my life. If there is anyone's looking for the best construction crew this company is the best. I've never had anyone in my life as good as Corriveau construction company. They went beyond and above what I expected. "
Bill A on September 2025
Innovative Septic Solutions
40 Pasture Drive
Innovative Septic Solutions
40 Pasture Drive
Customers say: Quality work
24 local quotes requested
40 years of experience
Serving all of Hillsborough and the surrounding counties, the professionals at Innovative Septic Solutions are the go-to, full service septic designers and installers you can trust to get the job done right! Call now for a consultation!
"Our new construction home in Gilford, NH will not begin until spring 2025. Bob?s professionalism, solid experience and in-depth knowledge of septic systems and sitework became readily apparent at our initial on-site meeting. Bob provided multiple options which included a state-of-the-art type installation approved by the state of New Hampshire that very few other companies are offering. In addition, Bob is very well connected and a wealth of knowledge in all areas of the building process. We look forward to working with Bob and Innovative Septic and Site Solutions on installing the septic system, site work and many other items. I highly recommend Bob! Sincerely, Dave Kxxx Gilford, NH "
Dave K on February 2025
Serving all of Hillsborough and the surrounding counties, the professionals at Innovative Septic Solutions are the go-to, full service septic designers and installers you can trust to get the job done right! Call now for a consultation!
"Our new construction home in Gilford, NH will not begin until spring 2025. Bob?s professionalism, solid experience and in-depth knowledge of septic systems and sitework became readily apparent at our initial on-site meeting. Bob provided multiple options which included a state-of-the-art type installation approved by the state of New Hampshire that very few other companies are offering. In addition, Bob is very well connected and a wealth of knowledge in all areas of the building process. We look forward to working with Bob and Innovative Septic and Site Solutions on installing the septic system, site work and many other items. I highly recommend Bob! Sincerely, Dave Kxxx Gilford, NH "
Dave K on February 2025
Septic Designs of NH, LLC
12 Folsom St
Septic Designs of NH, LLC
12 Folsom St
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
19 local quotes requested
Septic Designs of NH LLC is a Veteran owned small business with BBB accreditation. We take great pride in our work and are not satisfied until you are. We do Septic Designs, Inspections, Tank Replacements, and Septic Repairs. We also clear main sewer lines and do Trenchless Pipe Repair. Which is a NO DIG solution for pipe replacements. Our jetter is also a HEATED jetter for that tough grease or other buildup where you need some extra hot water to really clean the pipe.
"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."
Vickie C on September 2021
Septic Designs of NH LLC is a Veteran owned small business with BBB accreditation. We take great pride in our work and are not satisfied until you are. We do Septic Designs, Inspections, Tank Replacements, and Septic Repairs. We also clear main sewer lines and do Trenchless Pipe Repair. Which is a NO DIG solution for pipe replacements. Our jetter is also a HEATED jetter for that tough grease or other buildup where you need some extra hot water to really clean the pipe.
"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."
Vickie C on September 2021
H. K. White & Son, LLC
203 Towle Rd
H. K. White & Son, LLC
203 Towle Rd
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
65 years of experience
Welcome to H.K. White & Son, LLC! We are committed to exceeding your expectations. As experts, we will handle your needs with the high quality expertise that your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us now!
"They were very approachable, and made me feel comfortable as a woman dealing with contractors. Very professional, and on time, even checking in when their day was done. I would say they went above and beyond."
Kathy Y on March 2019
Welcome to H.K. White & Son, LLC! We are committed to exceeding your expectations. As experts, we will handle your needs with the high quality expertise that your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us now!
"They were very approachable, and made me feel comfortable as a woman dealing with contractors. Very professional, and on time, even checking in when their day was done. I would say they went above and beyond."
Kathy Y on March 2019
Roadway Excavators Inc.
522 Harvey Rd
Roadway Excavators Inc.
522 Harvey Rd
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 local quotes requested
Roadway Excavators Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business
"Replaced leech field- he did an excellent job removing my old leech field and replacing it with a better system. From the time I entered the job in homeadvisor (approx 8am) I was called back before noon. We scheduled a site review later that day. From the time I selected Roadway, there was constant progress. Even when the permits were in progress, they were in constant contact to let me know what was going on. When the permits were in order, they worked nonstop until the job was done. Their work was excellent, prompt and neat. Highly recommend."
Russ R on April 2021
Roadway Excavators Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business
"Replaced leech field- he did an excellent job removing my old leech field and replacing it with a better system. From the time I entered the job in homeadvisor (approx 8am) I was called back before noon. We scheduled a site review later that day. From the time I selected Roadway, there was constant progress. Even when the permits were in progress, they were in constant contact to let me know what was going on. When the permits were in order, they worked nonstop until the job was done. Their work was excellent, prompt and neat. Highly recommend."
Russ R on April 2021
Terraform Site Contracting, Corp.
PO Box 189
Terraform Site Contracting, Corp.
PO Box 189
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience
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!
"excellent people to deal with"
Donald W on May 2023
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!
"excellent people to deal with"
Donald W on May 2023
Covered Bridge Outdoor Construction Corp.
149 Hidden Oak Way
Covered Bridge Outdoor Construction Corp.
149 Hidden Oak Way
21 years of experience
Free onsite estimate
Covered Bridge is a construction firm with over 18 years in business. Our services include masonry and concrete repair, foundation and structural repair work. We also install chain link fencing. We serve residential, commercial and public sector clients. We also offer financing for our clients including 0% interest for 12 months and payment terms of up to 10 years!
"I have had Covered Bridge do several projects for me. They have exceeded my expectations every time! Paul and Keith are very easy to work with, they listened to what I wanted payed close attention to detail, they take pried in what they do and their finished work is proof! They have knowledge and experience in pretty much anything! Thanks to them I now have a brand new deck, stamped padio, new siding, front door and front steps and they will be my first call for any other projects that need attention! "
Candice C on August 2025
Covered Bridge is a construction firm with over 18 years in business. Our services include masonry and concrete repair, foundation and structural repair work. We also install chain link fencing. We serve residential, commercial and public sector clients. We also offer financing for our clients including 0% interest for 12 months and payment terms of up to 10 years!
"I have had Covered Bridge do several projects for me. They have exceeded my expectations every time! Paul and Keith are very easy to work with, they listened to what I wanted payed close attention to detail, they take pried in what they do and their finished work is proof! They have knowledge and experience in pretty much anything! Thanks to them I now have a brand new deck, stamped padio, new siding, front door and front steps and they will be my first call for any other projects that need attention! "
Candice C on August 2025
Clear Water Pump & Well Service, Inc.
PO Box 6
Clear Water Pump & Well Service, Inc.
PO Box 6
Customers say: Quality work
349 local quotes requested
14 years of experience
Clear Water Pump & Well Service, Inc. is your trusted partner for all your well, water filtration and pump service needs in Massachusetts and Rhode Island. With over 15 years of experience, we are the leading experts in the industry. Our commitment is to deliver exceptional service without compromising on quality, all at an affordable price. We have extensive knowledge of the latest technology in the Water Well Industry in Massachusetts and beyond, and our services are available throughout the region. Contact us today and let us earn your business.
"Good job done."
John N on November 2024
Clear Water Pump & Well Service, Inc. is your trusted partner for all your well, water filtration and pump service needs in Massachusetts and Rhode Island. With over 15 years of experience, we are the leading experts in the industry. Our commitment is to deliver exceptional service without compromising on quality, all at an affordable price. We have extensive knowledge of the latest technology in the Water Well Industry in Massachusetts and beyond, and our services are available throughout the region. Contact us today and let us earn your business.
"Good job done."
John N on November 2024
FAQs for septic system installation and replacement projects in Merrimack, NH
Most septic system replacements require several days to complete, not including permitting and preparation time. The process begins with site assessment and testing, followed by excavation, component installation, and final inspection. Weather conditions, property accessibility, and inspection schedules can all affect your project timeline. Your contractor can provide a more specific estimate based on your property's unique characteristics.
Standard homeowners' insurance policies don't cover septic system replacement due to age or normal deterioration. Coverage may apply if damage results from specific covered events, but routine maintenance and eventual replacement are generally considered homeowner responsibilities. Review your policy details or speak with your insurance agent to understand your specific coverage limitations.
Look for multiple indicators such as slow-draining fixtures, unusual gurgling sounds in plumbing, sewage odors inside or outside your home, or wet spots in your yard. Unusually lush grass over the drain field area, frequent backups, or recurring repair needs might signal system failure. Addressing these warning signs promptly can prevent property damage and health hazards.
DIY septic installation is not recommended and may violate local regulations. Professional installation ensures compliance with health codes, proper design for your specific site conditions, and appropriate safety measures. The specialized equipment, technical knowledge, and permitting requirements make this a job best left to licensed professionals who can guarantee the system's safety and effectiveness.
With proper maintenance, including regular pumping, a drain field lasts 20 years. Various factors influence system longevity, including household size, water usage patterns, and soil conditions. Regular professional inspections can help determine when replacement becomes necessary. If your system requires increasingly frequent repairs, replacement might be more economical than continuing to address individual problems.
The Merrimack, NH homeowners’ guide to septic system installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
When calculating the cost to pump a septic tank, you need to consider the size of the tank, how often it needs to be pumped, and the maintenance of the tank.
Use this guide to budget for a septic system inspection based on cost factors such as inspection type, accessibility, and additional septic services.
If you need to replace your well pump, you should budget based on the well pump type, size, and labor rates in your area.
Budget for septic tank repair costs based on factors including parts, materials, labor, ongoing maintenance costs, and more.
Budget for well pump repair costs based on factors such as parts and components, location, pump type, labor, inspections, and more.
Discover how factors such as your location, service requirements, labor rates, and add-ons affect well inspection costs.
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