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TRUSTED BY HOLLIS, NH HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon59
    Verified septic tank services reviews

Find Septic tank pros in Hollis

Innovative Septic Solutions

4.59(
27
)
Approved Pro

Innovative Septic Solutions

4.59(
27
)
Approved Pro
Customers say: Quality work
34 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!

"I was selling a 71 year old home and the inspection revealed a failing septic system. I had called another company as well as Bob snd had opted to use the other company which was local in Merrimack. Sadly I was told it would be 6 to 8 weeks. I could not wait that long since the house needed to be sold before winter. I called Bob and he began the same day! He explained he was also an engineer and could do the required septic design himself. He was able to have the entire job done in 2 weeks and we had a contract to sell before he finished. He was a delight to work with and I woukd recommend this company without any hesitation."

Betty F on October 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!

"I was selling a 71 year old home and the inspection revealed a failing septic system. I had called another company as well as Bob snd had opted to use the other company which was local in Merrimack. Sadly I was told it would be 6 to 8 weeks. I could not wait that long since the house needed to be sold before winter. I called Bob and he began the same day! He explained he was also an engineer and could do the required septic design himself. He was able to have the entire job done in 2 weeks and we had a contract to sell before he finished. He was a delight to work with and I woukd recommend this company without any hesitation."

Betty F on October 2025


Avatar for Derry Plumbing & Heating

Derry Plumbing & Heating

4.50(
30
)
Approved Pro

Derry Plumbing & Heating

4.50(
30
)
Approved Pro
Customers say: Quality work
36 years of experience
Free onsite estimate

If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!

"Great service! Emergency service and done within the day!"

Bonnie S on May 2025

If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!

"Great service! Emergency service and done within the day!"

Bonnie S on May 2025


Avatar for Septic Designs of NH, LLC

Septic Designs of NH, LLC

4.75(
25
)
Approved Pro

Septic Designs of NH, LLC

4.75(
25
)
Approved Pro
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
25 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


Tom Howe Septic Systems and Excavation

5.00(
6
)
Approved Pro

Tom Howe Septic Systems and Excavation

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

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


Avatar for Clear Water Pump & Well Service, Inc.

Clear Water Pump & Well Service, Inc.

4.91(
33
)
Approved Pro

Clear Water Pump & Well Service, Inc.

4.91(
33
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
119 local quotes requested

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


Avatar for A Really Good Plumber

A Really Good Plumber

4.67(
9
)
Approved Pro

A Really Good Plumber

4.67(
9
)
Approved Pro
Customers say: Quick response
30 local quotes requested
18 years of experience

At A Really Good Plumber, we pride ourselves on providing our customers with reasonable pricing, quality workmanship, and professional service on every call. When you work with A Really Good Plumber, you know you are getting high quality products and exceptional service facilitated by cutting edge technology. Our certified technicians use this technology in all installations, and to diagnose, and repair existing problems. These services will ultimately benefit the ones you love by keeping you and your family comfortable and safe all year round.

"He was very observant of all the permissions needed for a gas water heater. I definitely would recommend them to anybody easy to talk to and great work."

Dave B on December 2024

At A Really Good Plumber, we pride ourselves on providing our customers with reasonable pricing, quality workmanship, and professional service on every call. When you work with A Really Good Plumber, you know you are getting high quality products and exceptional service facilitated by cutting edge technology. Our certified technicians use this technology in all installations, and to diagnose, and repair existing problems. These services will ultimately benefit the ones you love by keeping you and your family comfortable and safe all year round.

"He was very observant of all the permissions needed for a gas water heater. I definitely would recommend them to anybody easy to talk to and great work."

Dave B on December 2024


Roadway Excavators Inc.

5.00(
2
)
Approved Pro

Roadway Excavators Inc.

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 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


Granite State Sewer & Drain Cleaning Co

4.92(
12
)
Approved Pro

Granite State Sewer & Drain Cleaning Co

4.92(
12
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
47 local quotes requested

Granite State Sewer & Drain Cleaning Co is your go-to plumbing and drain cleaning expert in New Hampshire. With our extensive experience and top-notch service, we stand out from the competition. Contact us today for all your plumbing needs! Additional DBAs - Granite State Sewer Pumps, Granite State Sewer & Drain Cleaning Inc.

"good job and reasonable pricing"

David S on September 2025

Granite State Sewer & Drain Cleaning Co is your go-to plumbing and drain cleaning expert in New Hampshire. With our extensive experience and top-notch service, we stand out from the competition. Contact us today for all your plumbing needs! Additional DBAs - Granite State Sewer Pumps, Granite State Sewer & Drain Cleaning Inc.

"good job and reasonable pricing"

David S on September 2025


"Eric was very precise in his work. We had some speed bumps that occurred due to the full gut of the bathroom. He dealt with problems effectively and kept us informed as to what he needed to do and why. Eric was great to work with and the end product was perfect. We would recommend Hot & Cold Plumming!"

Mill G on October 2025

SUPER SERVICE AWARD 2023, 2022, 2021, 2020, 2019,2018,2017,2016, 2015, 2014 AND 2013 PLUMBING. Hot & Cold Plumbing & Heating LLC is a full service plumbing, heating and gas-fitting company. For an immediate response to all your plumbing and heating needs, CALL (978) 701-1617.

"Eric was very precise in his work. We had some speed bumps that occurred due to the full gut of the bathroom. He dealt with problems effectively and kept us informed as to what he needed to do and why. Eric was great to work with and the end product was perfect. We would recommend Hot & Cold Plumming!"

Mill G on October 2025


Avatar for W. Santos Construction Services, LLC

W. Santos Construction Services, LLC

3.00(
1
)

W. Santos Construction Services, LLC

3.00(
1
)
17 years of experience

W. Santos Construction Services, LLC is a family owned and operated business. We specialize in Excavation work, land leveling and clearing, Septic System installation, foundation excavation and project management. We will work with you to keep your project in budget and completed on time. We are fully licensed and Insured. Serving New England since 2008!

"Did not hire the professional"

Larry C on May 2023

W. Santos Construction Services, LLC is a family owned and operated business. We specialize in Excavation work, land leveling and clearing, Septic System installation, foundation excavation and project management. We will work with you to keep your project in budget and completed on time. We are fully licensed and Insured. Serving New England since 2008!

"Did not hire the professional"

Larry C on May 2023

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Septic Tanks questions, answered by experts

For homes with a septic tank, harsh chemicals like those found in drain cleaner or bleach aren’t recommended. Some chemical drain cleaners can disrupt the balance of bacteria in the septic tank or damage your pipes. For homes with a septic tank, you can choose drain cleaners specifically formulated for use with septic tanks or go with a drain snake. When in doubt, make sure you know who to call for a clogged drain

Choosing a reliable septic tank company starts by finding an experienced company in your area with positive customer reviews online. You can also use the following tips to help ensure you have a positive experience:

  • Choose a company that is licensed and fully insured

  • Ask the company for customer references

  • Ask if the company provides any guarantee for the repair

  • Determine the provider’s level of experience

The dimensions of a 500-gallon concrete septic tank can vary from manufacturer to manufacturer, but the tank is large enough to handle the wastewater of a small home with up to one bedroom. Keep in mind that some states have a minimum septic tank size, and this often starts at 750 gallons. A 500-gallon septic tank may be too small to meet local regulations.

Unfortunately, yes. If your well pump continues working when the flow of water is completely blocked, the motor will burn up. The energy has nowhere to go, thanks to the blockage, so it turns inward. The end result? A ruined well pump and a depleted bank account (once you shop for a replacement.) 

When a septic tank is full, it needs to be professionally pumped. The average cost of a one-time septic tank pump is about $400, or $0.30 per gallon. If your septic tank is full, you may notice that you have issues flushing your toilet, pipes are draining very slowly, or you have a sewage smell lingering in your home or yard.

The Hollis, NH homeowners’ guide to septic tank services

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