Top-rated percolation testing pros.

Get matched with top percolation testing pros in Rockville, MD

There are 64 highly-rated local percolation testing pros.

TRUSTED BY ROCKVILLE, MD HOMEOWNERS

Average homeowner rating star icon4.6
Average homeowner rating
Verified reviews icon4k+
Verified percolation testing services reviews

Percolation testing pros in Rockville

Avatar for Drainage and Erosion Solutions
Drainage and Erosion Solutions
2754 Cameron Rd
4.17(
298
)
Approved Pro
Drainage and Erosion Solutions
2754 Cameron Rd
4.17(
298
)
Approved Pro
Customers say: Quality work
36 local quotes requested
22 years of experience

Drainage & Erosion Solutions (DES) is an award-winning design-build firm specializing in diagnosing and resolving drainage and erosion issues for residential and commercial properties. With both engineering and contracting divisions, we deliver professionally engineered solutions that are as functional as they are aesthetically pleasing. Our team is composed of dedicated, full-time professionals known for their technical expertise, attention to detail, and commitment to exceptional customer service. All consultations, assessments, and installations are performed by licensed experts—including soils engineers and landscape and drainage system designers—who bring decades of combined experience in design and construction. Clients trust DES for our reliability and results, leading to a strong referral-based business and consistently high rankings on contractor-rating platforms.

""After 15 years of enduring water and flooding damage to our yard and the foundation of our house, and after trying various 'solutions' from well-intentioned landscapers that never truly resolved the issues, we ultimately decided to engage Drainage and Erosion Solutions. We required comprehensive flood control and damage mitigation, and their expert team skillfully implemented swales, dry creeks, catch basins, and channel drains in areas where water management was critical. They also replaced a water-damaged window well, removed a flagstone patio to install drain basins and drainage pipes, and flawlessly reinstalled it. The supervisor and crew displayed remarkable knowledge, professionalism, and an unwavering commitment to detail throughout the entire project. This system has been operational for several months now, and even during the most intense rainfall, which historically led to road flooding, my house and foundation remain dry. We enthusiastically endorse this company without reservation.""

Lori D on November 2023

Drainage & Erosion Solutions (DES) is an award-winning design-build firm specializing in diagnosing and resolving drainage and erosion issues for residential and commercial properties. With both engineering and contracting divisions, we deliver professionally engineered solutions that are as functional as they are aesthetically pleasing. Our team is composed of dedicated, full-time professionals known for their technical expertise, attention to detail, and commitment to exceptional customer service. All consultations, assessments, and installations are performed by licensed experts—including soils engineers and landscape and drainage system designers—who bring decades of combined experience in design and construction. Clients trust DES for our reliability and results, leading to a strong referral-based business and consistently high rankings on contractor-rating platforms.

""After 15 years of enduring water and flooding damage to our yard and the foundation of our house, and after trying various 'solutions' from well-intentioned landscapers that never truly resolved the issues, we ultimately decided to engage Drainage and Erosion Solutions. We required comprehensive flood control and damage mitigation, and their expert team skillfully implemented swales, dry creeks, catch basins, and channel drains in areas where water management was critical. They also replaced a water-damaged window well, removed a flagstone patio to install drain basins and drainage pipes, and flawlessly reinstalled it. The supervisor and crew displayed remarkable knowledge, professionalism, and an unwavering commitment to detail throughout the entire project. This system has been operational for several months now, and even during the most intense rainfall, which historically led to road flooding, my house and foundation remain dry. We enthusiastically endorse this company without reservation.""

Lori D on November 2023


Joseph plumbing & drain
8903 34th Ave
4.91(
116
)
Approved Pro
Joseph plumbing & drain
8903 34th Ave
4.91(
116
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
357 local quotes requested

Joseph Plumbing & Drain, LLC is College Park's premier plumbing company. Call us for all of your plumbing needs. With 15 years experience we aim to not only meet but exceed your expectations. Call us today and see why your neighbors use Joseph Plumbing & Drain, LLC! Master License 72767

"Very well, was on time, professional and knowledgeable"

Deborah W on May 2025

Joseph Plumbing & Drain, LLC is College Park's premier plumbing company. Call us for all of your plumbing needs. With 15 years experience we aim to not only meet but exceed your expectations. Call us today and see why your neighbors use Joseph Plumbing & Drain, LLC! Master License 72767

"Very well, was on time, professional and knowledgeable"

Deborah W on May 2025


Avatar for R & G Water Systems Inc
R & G Water Systems Inc
3102 Main St.
4.96(
55
)
Approved Pro
R & G Water Systems Inc
3102 Main St.
4.96(
55
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
19 local quotes requested

R & G Water Systems carries, installs, services and repairs well pumps and water treatment and conditioning systems for residential and light commercial application. We also deal with acid neutralizers.

"Great! I called after hours and Rick was pleasant. He asked to text a picture of the leaking. Brad was here in the morning. One hour later he was finished The price was reasonable. Would definitely hire again"

Thomas S on December 2021

R & G Water Systems carries, installs, services and repairs well pumps and water treatment and conditioning systems for residential and light commercial application. We also deal with acid neutralizers.

"Great! I called after hours and Rick was pleasant. He asked to text a picture of the leaking. Brad was here in the morning. One hour later he was finished The price was reasonable. Would definitely hire again"

Thomas S on December 2021


Avatar for Hague Quality Water of Maryland
Hague Quality Water of Maryland
814 E College Pkwy
4.56(
66
)
Approved Pro
Hague Quality Water of Maryland
814 E College Pkwy
4.56(
66
)
Approved Pro
Customers say: Super punctual
24 local quotes requested
32 years of experience

A Refreshing Solution: Hague Quality Water of Maryland provides refreshing solutions for residential and commercial water treatment and plumbing services in Maryland, Delaware and Washington, DC. A family owned business founded in 1993, our mission is to make our customers happy by providing and installing the finest and highest quality solutions that will provide them years of trouble-free use. Our systems are Custom Designed - Trusted - Long Lasting and American Made. Call Hague Quality Water to request a free professional water analysis or plumbing estimate today!

"I highly recommend this company. They were professional, very courteous and very responsive to questions and concerns. They installed 2 BB filters and a UV purifier, and the workmanship is impressive."

Beth S on September 2022

A Refreshing Solution: Hague Quality Water of Maryland provides refreshing solutions for residential and commercial water treatment and plumbing services in Maryland, Delaware and Washington, DC. A family owned business founded in 1993, our mission is to make our customers happy by providing and installing the finest and highest quality solutions that will provide them years of trouble-free use. Our systems are Custom Designed - Trusted - Long Lasting and American Made. Call Hague Quality Water to request a free professional water analysis or plumbing estimate today!

"I highly recommend this company. They were professional, very courteous and very responsive to questions and concerns. They installed 2 BB filters and a UV purifier, and the workmanship is impressive."

Beth S on September 2022


Avatar for Jimmy Gusky Heating & Air LLC
Jimmy Gusky Heating & Air LLC
2604 Connecticut Ave NW
4.31(
358
)
Approved Pro
Jimmy Gusky Heating & Air LLC
2604 Connecticut Ave NW
4.31(
358
)
Approved Pro
Customers say: Terrific value
21 local quotes requested
29 years of experience

Family owned & operated. Jimmy Gusky LLC is here to serve you in the warm and cold seasons. With more than 30 years of plumbing & HVAC experience, we work on every project with attention to detail and time. HVAC, plumber, commercial plumbing, repair boilers, heating repair. Additional DBA - JCF Inc .

"Jimmy showed up to my home during a time when my thermostat was not working. That issue was fixed. He sold me a services contract and told me when he returned to services the units, he will cover the pipes outdoors. I purchased the contract for twice per year maintenance. I scheduled with him for a specific date. Appointment was confirmed but Jimmy did not show. When I called, he it appears that he forgot my appointment and he rescheduled saying he could not work in the rain. He rescheduled for a few days after and one of his workers showed up (Carlos). The guy showed up looking like he was someone who does not want to work and unprepared. So, I asked him if he has filters and he said know. Jimmy's workman did not bring filter, so I offered him filters I had stored. I asked him if he bought things to cover the pipes at the back, he said no. I called and left a message for Jimmy. Carlos was so rude and unprofessional. I was so scared of him and the way he was behaving. Carlos then said he would NOT do any service. IT WAS A WASTE OF MY TIME. He did return my money. BUT I will not recommend him. Will NOT use him again. As woman I will not hire again. Customer services was poor, reliability and punctuality poor."

Bibi K on October 2022

Family owned & operated. Jimmy Gusky LLC is here to serve you in the warm and cold seasons. With more than 30 years of plumbing & HVAC experience, we work on every project with attention to detail and time. HVAC, plumber, commercial plumbing, repair boilers, heating repair. Additional DBA - JCF Inc .

"Jimmy showed up to my home during a time when my thermostat was not working. That issue was fixed. He sold me a services contract and told me when he returned to services the units, he will cover the pipes outdoors. I purchased the contract for twice per year maintenance. I scheduled with him for a specific date. Appointment was confirmed but Jimmy did not show. When I called, he it appears that he forgot my appointment and he rescheduled saying he could not work in the rain. He rescheduled for a few days after and one of his workers showed up (Carlos). The guy showed up looking like he was someone who does not want to work and unprepared. So, I asked him if he has filters and he said know. Jimmy's workman did not bring filter, so I offered him filters I had stored. I asked him if he bought things to cover the pipes at the back, he said no. I called and left a message for Jimmy. Carlos was so rude and unprofessional. I was so scared of him and the way he was behaving. Carlos then said he would NOT do any service. IT WAS A WASTE OF MY TIME. He did return my money. BUT I will not recommend him. Will NOT use him again. As woman I will not hire again. Customer services was poor, reliability and punctuality poor."

Bibi K on October 2022


Avatar for TriState Home Services
TriState Home Services
82A Wormans Mill Ct
4.64(
195
)
Approved Pro
TriState Home Services
82A Wormans Mill Ct
4.64(
195
)
Approved Pro
Customers say: Super punctual
217 local quotes requested
76 years of experience

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Great service very prompt and easy to work with."

Randy W on May 2025

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Great service very prompt and easy to work with."

Randy W on May 2025


Avatar for Dun Rite Drain Cleaning LLC
Dun Rite Drain Cleaning LLC
Croydon Rd
4.71(
7
)
Approved Pro
Dun Rite Drain Cleaning LLC
Croydon Rd
4.71(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 local quotes requested

We are a group of specialists in the field of plumbing and drain cleaning. see our Home Advisor and Google review to see what others are saying

"perfect! Sterling did a terrific job!"

Tom D on September 2024

We are a group of specialists in the field of plumbing and drain cleaning. see our Home Advisor and Google review to see what others are saying

"perfect! Sterling did a terrific job!"

Tom D on September 2024


Avatar for Juica's Plumbing, LLC
Juica's Plumbing, LLC
1005 Baltimore Road
5.00(
4
)
Approved Pro
Juica's Plumbing, LLC
1005 Baltimore Road
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
67 local quotes requested

15+ years of experience! Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. 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!

"Happy with results."

Ric S on March 2025

15+ years of experience! Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. 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!

"Happy with results."

Ric S on March 2025


Avatar for Beacon Home Services
Beacon Home Services
10498 Colonel Ct
4.71(
1,014
)
Approved Pro
Beacon Home Services
10498 Colonel Ct
4.71(
1,014
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
771 local quotes requested

When you have an electrical or plumbing issue, you want it solved quickly for the safety and comfort of you and your family. Our technicians genuinely care about our customers, which is one of the reasons why we have been a trusted electrical and plumbing services company in the area for the past 20+ years. Our technicians have well stocked trucks and are able to do most repairs the same day. We offer 5-star service, same-day services, upfront pricing, as well as various financing options. Our technicians are highly trained and confident in their skills and ability to handle any electrical and plumbing issue in your home and stand behind all our recommended repairs.

"Don’t use the plumbing! Called to have Kohler toilet tank plunger repaired. Whole installation is $20. Labor is an hour at $80 so the price is $150, at most. No, they charged $450–BS! These guys are a scam. No prices and I told them to have the repair person call me before arriving. No call, no prices. And, then the repair person has the stones to tell me that everyone overcharges!! Let’s start with not using Beacon!!!"

Joseph B on June 2025

When you have an electrical or plumbing issue, you want it solved quickly for the safety and comfort of you and your family. Our technicians genuinely care about our customers, which is one of the reasons why we have been a trusted electrical and plumbing services company in the area for the past 20+ years. Our technicians have well stocked trucks and are able to do most repairs the same day. We offer 5-star service, same-day services, upfront pricing, as well as various financing options. Our technicians are highly trained and confident in their skills and ability to handle any electrical and plumbing issue in your home and stand behind all our recommended repairs.

"Don’t use the plumbing! Called to have Kohler toilet tank plunger repaired. Whole installation is $20. Labor is an hour at $80 so the price is $150, at most. No, they charged $450–BS! These guys are a scam. No prices and I told them to have the repair person call me before arriving. No call, no prices. And, then the repair person has the stones to tell me that everyone overcharges!! Let’s start with not using Beacon!!!"

Joseph B on June 2025


Avatar for Len The Plumber, LLC.
Len The Plumber, LLC.
550 Forest Glen Rd
3.90(
644
)
Approved Pro
Len The Plumber, LLC.
550 Forest Glen Rd
3.90(
644
)
Approved Pro
Customers say: Super punctual
410 local quotes requested
29 years of experience

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!

"🚨 Avoid Len the Plumber – Negligent & Unsafe! 🚨 I hired Len the Plumber to install a brand-new water heater, but it failed after two weeks. They promised quick service but left us without hot water for days. Worse, the first technician concealed a serious fire hazard—the heater’s electrical components had actually caught FIRE and burned! A second technician finally admitted the fire risk, meaning my family could have been in grave danger. This is pure negligence and completely unacceptable. They replaced the heater but only after multiple delays, zero accountability, and putting our safety at risk. 🚫 DO NOT trust this company with your home’s safety! 🚫"

Chingiz U on March 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!

"🚨 Avoid Len the Plumber – Negligent & Unsafe! 🚨 I hired Len the Plumber to install a brand-new water heater, but it failed after two weeks. They promised quick service but left us without hot water for days. Worse, the first technician concealed a serious fire hazard—the heater’s electrical components had actually caught FIRE and burned! A second technician finally admitted the fire risk, meaning my family could have been in grave danger. This is pure negligence and completely unacceptable. They replaced the heater but only after multiple delays, zero accountability, and putting our safety at risk. 🚫 DO NOT trust this company with your home’s safety! 🚫"

Chingiz U on March 2025

...
Showing 1-10 of 230

FAQs for percolation testing projects in Rockville, 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.

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.

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 Rockville, 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 modern bathroom with a glass shower, a white toilet and a modern sink
May 9, 2025
May 9, 2025
Wondering how much it costs to reroute plumbing? We have the information you need to learn about plumbing vent pipes and cost considerations when installing them.
Small bathroom with mosaic tile
Feb 10, 2025
Feb 10, 2025
Need to know what sewer line replacement costs? This guide will help you prepare to budget for sewer line replacement done by local contractors.
plumber installs pipes in a home
Mar 4, 2025
Mar 4, 2025
A clogged main sewer line can lead to gas or wastewater leaks. Find out what main sewer line clog repair costs by type of service, clog severity, and more.
Woman tests shower temperature
May 13, 2025
May 13, 2025
A whistling shower can be a sign of a serious plumbing problem. If your shower is sounding an alarm, explore some of the reasons why so you can find a solution.
Worker opening a septic tank
Mar 11, 2025
Mar 11, 2025
If you’re building a new home or experiencing ongoing plumbing issues, you’ll need a septic tank pro. Review these questions to ask about septic systems.
home with covered porch and fresh cut grass
Jan 4, 2024
Jan 4, 2024
A no-dig sewer repair is a less invasive way to repair sewer pipes. Keep reading to learn how to avoid trenches in your yard with this newer technology.
Share project details to get started.