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Verified Reviews for Percolation Testing pros in Largo, MD
*The Angi rating for Percolation Testing companies in Largo, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Percolation Testing needs.
*The HomeAdvisor rating for Percolation Testing companies in Largo, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Percolation Testing needs.
Last update on December 12, 2025
Find Percolation testing pros in Largo

Len The Plumber Heating & Air, LLC
Len The Plumber Heating & Air, LLC
Len The Plumber, LLC. is a leading plumbing and drain company serving Maryland and Washington D.C. Our certified professional plumbers are available same day to assist residential customers in Charles County, Montgomery County, Prince George’s County, and Washington D.C. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!
" I was actually really shocked that the lady was so unprofessional because that's a pretty big plumbing company in our area. But she started over-talking me. I mean, she was so rude when I was telling her that this is not the way to speak to a customer, she hung up the phone. "
Tiffani N on November 2025
Len The Plumber, LLC. is a leading plumbing and drain company serving Maryland and Washington D.C. Our certified professional plumbers are available same day to assist residential customers in Charles County, Montgomery County, Prince George’s County, and Washington D.C. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!
" I was actually really shocked that the lady was so unprofessional because that's a pretty big plumbing company in our area. But she started over-talking me. I mean, she was so rude when I was telling her that this is not the way to speak to a customer, she hung up the phone. "
Tiffani N on November 2025

West Shore Home Baltimore
West Shore Home Baltimore
To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.
"Excellent customer service. Excellent finished product. West Shore Home came to install a shower in one bathroom and bathtub/shower in another bathroom. Their customer service is top tier! They took extra caution to ensure they didn’t damage or disrupt my home or other furniture as they carried their equipment in and out of the house. They encouraged me to see the progress as they worked. (Nothing to hide is always a good thing.) When I expressed surprise and disappointment with one aspect of the design, they immediately began solutioning the issue."
Isiah T on January 2025
To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.
"Excellent customer service. Excellent finished product. West Shore Home came to install a shower in one bathroom and bathtub/shower in another bathroom. Their customer service is top tier! They took extra caution to ensure they didn’t damage or disrupt my home or other furniture as they carried their equipment in and out of the house. They encouraged me to see the progress as they worked. (Nothing to hide is always a good thing.) When I expressed surprise and disappointment with one aspect of the design, they immediately began solutioning the issue."
Isiah T on January 2025

Dream Plumbing Services, Inc.
Dream Plumbing Services, Inc.
Dream Plumbing Services, Inc. is a full-service plumbing company specializing in water heater/tankless water heater installation and repair with an expert focus on providing quality service versus the typical quantity experience. With over 15 years of experience and expertise, we are more than capable of meeting and satisfying all of your plumbing needs with detail and perfection. Customer service and honesty are the pillars of our company and your satisfaction is guaranteed. Please contact us today for an estimate and we look forward to working with you.
"Great company to do business with, they are prompt and professional"
Romy S on March 2020
Dream Plumbing Services, Inc. is a full-service plumbing company specializing in water heater/tankless water heater installation and repair with an expert focus on providing quality service versus the typical quantity experience. With over 15 years of experience and expertise, we are more than capable of meeting and satisfying all of your plumbing needs with detail and perfection. Customer service and honesty are the pillars of our company and your satisfaction is guaranteed. Please contact us today for an estimate and we look forward to working with you.
"Great company to do business with, they are prompt and professional"
Romy S on March 2020

Ron Graves Plumbing
Ron Graves Plumbing
Ron Graves Plumbing 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.
"Ron was quick and responsive and got my leaking pipe fixed."
Michael B on March 2024
Ron Graves Plumbing 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.
"Ron was quick and responsive and got my leaking pipe fixed."
Michael B on March 2024

Elmer Remodeling LLC
Elmer Remodeling LLC
Locally owned and operated, proudly serving Virginia, Elmer Remodel is your one stop shop for all of your remodeling needs. Focusing on all types of residential and commercial remodel projects, no job is too large or small for us. Give is a call today!
"Very good quality and professional!"
Jose S on October 2020
Locally owned and operated, proudly serving Virginia, Elmer Remodel is your one stop shop for all of your remodeling needs. Focusing on all types of residential and commercial remodel projects, no job is too large or small for us. Give is a call today!
"Very good quality and professional!"
Jose S on October 2020

Amazing Walk-In Tubs & Showers LLC
Amazing Walk-In Tubs & Showers LLC
Amazing Walk-In Tubs is committed to excellence in every aspect of our business. Incidentally, we offer THE lowest step-in height on tubs and showers in the industry. 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 and why our warranty is simply the best in the industry. 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. Amazing Walk-In Tubs will do everything possible to make sure our customers get exactly what they need while treating them like family. We want to make sure you'll know you've made the right decision by putting your trust in us and stake our reputation on that promise.
"I can't say enough good things about Amazing Walk In Tubs. My Mom's bathroom is narrow as is the door opening. We had several other companies come out. Some said that the work couldn't be done because the tub wouldn't fit through the doorway and some of the estimates were double the price! Steve and John went above and beyond to help with my Mom's bathroom renovation, overcoming some tough challenges with the narrow space and door opening. Their competitive pricing and expertise really made a difference. We would HIGHLY recommend both of them and their company!!!"
Vicki H on May 2025
Amazing Walk-In Tubs is committed to excellence in every aspect of our business. Incidentally, we offer THE lowest step-in height on tubs and showers in the industry. 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 and why our warranty is simply the best in the industry. 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. Amazing Walk-In Tubs will do everything possible to make sure our customers get exactly what they need while treating them like family. We want to make sure you'll know you've made the right decision by putting your trust in us and stake our reputation on that promise.
"I can't say enough good things about Amazing Walk In Tubs. My Mom's bathroom is narrow as is the door opening. We had several other companies come out. Some said that the work couldn't be done because the tub wouldn't fit through the doorway and some of the estimates were double the price! Steve and John went above and beyond to help with my Mom's bathroom renovation, overcoming some tough challenges with the narrow space and door opening. Their competitive pricing and expertise really made a difference. We would HIGHLY recommend both of them and their company!!!"
Vicki H on May 2025

Allmaster Home Services
Allmaster Home Services
John has been in the home improvement industry for more than 40 years. He has spent more than 16 years training and consulting in the waterproofing and structural repair industry. He has also testified as an expert witness in both Maryland and Virginia. His honest approach and competitive pricing has gained many satisfied customers over the years.
"Have used allmaster on multiple projects and will continue to do so. Excellent work"
Adam M on April 2024
John has been in the home improvement industry for more than 40 years. He has spent more than 16 years training and consulting in the waterproofing and structural repair industry. He has also testified as an expert witness in both Maryland and Virginia. His honest approach and competitive pricing has gained many satisfied customers over the years.
"Have used allmaster on multiple projects and will continue to do so. Excellent work"
Adam M on April 2024

Renken Remodeling
Renken Remodeling
Renken Bath and Shower Remodeling is a leading bathroom remodeling company serving Maryland, Virginia, West Virginia, and Pennsylvania. Offering complete one-day bathroom remodeling and renovation services, Renken Remodeling features professional design consultants and unlimited color and accessory combinations to help you design the custom bathroom of your dreams.
"Renken did an excellent job. Highly recommend."
James G on December 2024
Renken Bath and Shower Remodeling is a leading bathroom remodeling company serving Maryland, Virginia, West Virginia, and Pennsylvania. Offering complete one-day bathroom remodeling and renovation services, Renken Remodeling features professional design consultants and unlimited color and accessory combinations to help you design the custom bathroom of your dreams.
"Renken did an excellent job. Highly recommend."
James G on December 2024

Remedy Plumbing & Drain Cleaning, LLC
Remedy Plumbing & Drain Cleaning, LLC
We value honesty and integrity in all aspects of our business. With over 10 years of plumbing and drain cleaning experience, we pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction.
"Price was high, especially for being there for less than 10 minutes. He also came 1 hours before agreed upon time. Job was completed, so in all it was done fine."
E L on October 2025
We value honesty and integrity in all aspects of our business. With over 10 years of plumbing and drain cleaning experience, we pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction.
"Price was high, especially for being there for less than 10 minutes. He also came 1 hours before agreed upon time. Job was completed, so in all it was done fine."
E L on October 2025

The Waterline Group, LLC
The Waterline Group, LLC
We're dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
"These guys did a great job. Thousands less than Michael and sons. "
Jason N on November 2025
We're dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
"These guys did a great job. Thousands less than Michael and sons. "
Jason N on November 2025
FAQs for percolation testing projects in Largo, MD
The average cost to snake your main sewer line is around $250 for a simple snake. Most sewer line specialists charge between $45 and $200 per hour for main sewer line snaking, so the time involved plays a major role. The price you’ll pay will depend on the severity of the clog, the item causing the backup, how long it takes to remove the item, and more. A more severe issue that requires unclogging a main sewer line will cost $3,100 on average.
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.
Yes, most states require septic tank installers to have a license, and for good reason. Hiring an unlicensed septic tank pro 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.
The cost of septic tank repair is $1,775 for the average homeowner. However, depending on a few elements, you might pay as little as $170 or as much as $6,100. Location, repair type, and tank material all determine the final cost. For example, replacing the septic tank filter can be as little as $200 to $300. However, repairing septic lines costs more, averaging around $1,500.
The average cost to unclog a drain is around $200, with prices ranging between $110 and $800, depending on the type of drain and the extent of the clog. Hiring a professional to snake the toilet or sink will usually cost between $110 and $275, a bathtub or shower typically costs around $225, and a main line clog can cost between $100 and $800 based on the severity of the clog and how far beyond the access point the clog sits. Since the labor involved varies, most plumbers will charge an hourly rate for drain cleaning.
The Largo, MD homeowners’ guide to percolation testing services
From average costs to expert advice, get all the answers you need to get your job done.

A leaky faucet can lead to costly water damage and a lot of wasted water. Learn how much it costs to fix a leaky faucet based on type, part and labor.
•Discover the cost to replace drain pipes in a house, including average prices, key factors, and tips to save on your plumbing project.

Emergency plumbers cost between 1.5 and 3 times as much as a typical plumber. Get specifics for your plumbing issue and city in our guide.

Winter can be particularly harsh on your plumbing—from water heater issues to frozen pipes. As the weather gets chilly, use these tips to prepare your home and avoid a costly winter plumbing leak.

Dealing with slow-draining sinks or a full toilet clog? Use this DIY guide on how to clear clogged drains to get your drain working again in no time at all.

You can tackle a drain blockage with a drain bladder or snake, but the type of clog will determine which one is better.
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