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
With 70 years of experience, Great Falls Septic Service offers comprehensive commercial and residential septic services. From brand new installs, repairs and maintenance-preventative or emergency, you can count on us to take care of all things septic. Additionally, we offer roll off containers and perform lot clearing. Our team of skilled servicemen provide quality workmanship and excellent customer service to ensure your septic system is well-maintained and fully functional. If you're looking for a company that provides outstanding service and quality work at an affordable price, then look no further than Great Falls Septic Service. We will do everything possible to cater to our clients. Family owned & operated. Phone number(s) 540-545-7075 or 703-444-5600. Fax number 540-545-7077
"On time, friendly, effective."
David F on May 2023
With 70 years of experience, Great Falls Septic Service offers comprehensive commercial and residential septic services. From brand new installs, repairs and maintenance-preventative or emergency, you can count on us to take care of all things septic. Additionally, we offer roll off containers and perform lot clearing. Our team of skilled servicemen provide quality workmanship and excellent customer service to ensure your septic system is well-maintained and fully functional. If you're looking for a company that provides outstanding service and quality work at an affordable price, then look no further than Great Falls Septic Service. We will do everything possible to cater to our clients. Family owned & operated. Phone number(s) 540-545-7075 or 703-444-5600. Fax number 540-545-7077
"On time, friendly, effective."
David F on May 2023
FOR FASTEST RESPONSE, PLEASE CALL (703) 810-7267. The fully-trained and professional team at DBs Plumbing and Drain always say what they are going to do and do what they say. Because of this, they have a less than 1% call back rate and offer a customer satisfaction guarantee on every job they take on. They are consistent with their pricing and will never overcharge for services performed. They are also consistent in their services, always going above and beyond and offering the same level of service, no matter what the price. Their goal is to build customers for life and they take this job very seriously. When you need plumbing help in Woodbridge, Prince William, Fairfax, and Stafford Counties and all of Northern Virginia, call on DBs Plumbing and Drain.
"They were very professional, helpful with clarifications, did an amazing job, and easy to work with. I enjoyed their work so much that I am also on an annual protection plan with them. I look forward to doing more work with them."
Edward O on February 2025
FOR FASTEST RESPONSE, PLEASE CALL (703) 810-7267. The fully-trained and professional team at DBs Plumbing and Drain always say what they are going to do and do what they say. Because of this, they have a less than 1% call back rate and offer a customer satisfaction guarantee on every job they take on. They are consistent with their pricing and will never overcharge for services performed. They are also consistent in their services, always going above and beyond and offering the same level of service, no matter what the price. Their goal is to build customers for life and they take this job very seriously. When you need plumbing help in Woodbridge, Prince William, Fairfax, and Stafford Counties and all of Northern Virginia, call on DBs Plumbing and Drain.
"They were very professional, helpful with clarifications, did an amazing job, and easy to work with. I enjoyed their work so much that I am also on an annual protection plan with them. I look forward to doing more work with them."
Edward O on February 2025
The AES Team has 15 employees with 8 trucks to provide quality Heating/Cooling & Plumbing services 24/7. The AES team is committed to hiring and retaining some of the most qualified technicians in the area, with a minimum of 10 years experience. We make training a priority for our technicians and their helpers. We keep the vans stocked with many replacement parts to get you back up and running during our first visit. All of our employees are drug tested, background checked and registered with the state of VA
"Our AC died last week and the first company provided us 3 replacement options. We selected the middle option ($16,000) and signed the contract, which provided us a 5 day cancellation period. Installation was scheduled for Friday. I solicited other companies quotes using the estimate provided by the first company and all declined stating I needed to schedule an appointment for someone to come out to take measurements, etc. Our inside temperature was 98 degrees. Advanced Environment Solutions provided us an unbinding estimate of $9,600. a better warranty and immediately dispatched a technician to take measurements and install a portable AC unit until the new one could be installed. Our unit was installed Friday. What a bunch of professionals! The team arrived at 6:30 am and were done by 11:00 am. To our surprise, we received a fruit basket from Advanced Enviroment Solutions the following day thanking us for selecting them! Who does is anymore? Hey competitors... Who can top Advanced Environment Solutions??? Need your system serviced or replaced? Advanced Environment Solutions gets our vote!"
Don W on July 2024
The AES Team has 15 employees with 8 trucks to provide quality Heating/Cooling & Plumbing services 24/7. The AES team is committed to hiring and retaining some of the most qualified technicians in the area, with a minimum of 10 years experience. We make training a priority for our technicians and their helpers. We keep the vans stocked with many replacement parts to get you back up and running during our first visit. All of our employees are drug tested, background checked and registered with the state of VA
"Our AC died last week and the first company provided us 3 replacement options. We selected the middle option ($16,000) and signed the contract, which provided us a 5 day cancellation period. Installation was scheduled for Friday. I solicited other companies quotes using the estimate provided by the first company and all declined stating I needed to schedule an appointment for someone to come out to take measurements, etc. Our inside temperature was 98 degrees. Advanced Environment Solutions provided us an unbinding estimate of $9,600. a better warranty and immediately dispatched a technician to take measurements and install a portable AC unit until the new one could be installed. Our unit was installed Friday. What a bunch of professionals! The team arrived at 6:30 am and were done by 11:00 am. To our surprise, we received a fruit basket from Advanced Enviroment Solutions the following day thanking us for selecting them! Who does is anymore? Hey competitors... Who can top Advanced Environment Solutions??? Need your system serviced or replaced? Advanced Environment Solutions gets our vote!"
Don W on July 2024
We are located in Northern Virginia and specializes in sewer repairs, sewer clearing, drain cleaning and clearing, sewer backups, sewer inspection and replacement also we repair and replace main water lines. Many jobs can be done with trenchless methods like pipe bursting, pipe pulling, directional drilling relining and descaling, milling and hydro-jetting.
"Excellent. Soil only went down 8 inches before hitting rock. They were able to break it up and get me 2 feet of soil down before hitting rock. They took care of hauling away the huge rocks and filled up hole with dirt and top layer of soil, seed, and straw. They did this for half my front yard where I needed more soil depth to plant large tree and also keep grass alive. They were upfront about everything and did a great job. They got it all done in 2 days. They are very professional and courteous. I highly recommend Wilson and his crew."
Dean G on October 2024
We are located in Northern Virginia and specializes in sewer repairs, sewer clearing, drain cleaning and clearing, sewer backups, sewer inspection and replacement also we repair and replace main water lines. Many jobs can be done with trenchless methods like pipe bursting, pipe pulling, directional drilling relining and descaling, milling and hydro-jetting.
"Excellent. Soil only went down 8 inches before hitting rock. They were able to break it up and get me 2 feet of soil down before hitting rock. They took care of hauling away the huge rocks and filled up hole with dirt and top layer of soil, seed, and straw. They did this for half my front yard where I needed more soil depth to plant large tree and also keep grass alive. They were upfront about everything and did a great job. They got it all done in 2 days. They are very professional and courteous. I highly recommend Wilson and his crew."
Dean G on October 2024
Family owned business with over 20 years of experience handling all your Plumbing needs for residential and commercial.
"YK performed a fantastic job with installing my water heater. Terrific effort and competitive pricing made for an excellent experience!"
Sam C on April 2025
Family owned business with over 20 years of experience handling all your Plumbing needs for residential and commercial.
"YK performed a fantastic job with installing my water heater. Terrific effort and competitive pricing made for an excellent experience!"
Sam C on April 2025
Home Service Pros is located in Northern Virginia and specialises in full service plumbing, small leaks to burst pipes, sewer repairs, sewer clearing, drain cleaning and clearing, sewer backups, sewer inspection and replacement also we repair and replace main water lines. We work throughout northern Virginia, and some parts of Maryland. We have every resource when it comes to main sewer, main water, and drains. We offer free estimates and second opinions
"Very well. The pipe had a pinhole leak in a copper elbow joint and required cutting the pipe, in a confined space, to drain standing water. G**** Miranda did a remarkable job repairing the pipe and an adjacent supply pipe I elected to have repaired in case its joint might leak. Workmanship was exceptional, potential mess and additional Sheetrock damage was minimized, G**** Miranda worked tirelessly for 3 hours and produced a satisfactory repair."
Michael M on March 2025
Home Service Pros is located in Northern Virginia and specialises in full service plumbing, small leaks to burst pipes, sewer repairs, sewer clearing, drain cleaning and clearing, sewer backups, sewer inspection and replacement also we repair and replace main water lines. We work throughout northern Virginia, and some parts of Maryland. We have every resource when it comes to main sewer, main water, and drains. We offer free estimates and second opinions
"Very well. The pipe had a pinhole leak in a copper elbow joint and required cutting the pipe, in a confined space, to drain standing water. G**** Miranda did a remarkable job repairing the pipe and an adjacent supply pipe I elected to have repaired in case its joint might leak. Workmanship was exceptional, potential mess and additional Sheetrock damage was minimized, G**** Miranda worked tirelessly for 3 hours and produced a satisfactory repair."
Michael M on March 2025
We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"Excellent service"
Luis F on February 2025
We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"Excellent service"
Luis F on February 2025
Family owner and operated since 1959, Richards Heating & Air Conditioning Co. has been designing, installing and servicing residential air conditioning and heating systems in the Washington Metropolitan area. We install “total comfort conditioning” systems to meet the unique configurations of individual homes, recommending systems that fit each customer’s needs. At Richards, we are proud of our work and are dedicated to maintaining a reputation in the industry and the community as reliable experts. Richards is a fully licensed and insured mechanical, gas fitting, and electrical contractor. We qualify in the installation and service of all aspects of heating & air conditioning systems. Our service department also offer three levels of service agreements to meet your needs.
"Yes, we feel they did a comprehensive job replacing the Carrier heating unit and all of the ancillary parts that go with it. The lead service person was very respectful and informative on what the plan was, estimated how long it would take and thorough in reviewing changes when the installation was finished. Richards completed the job within 24 hours of identifying the system needed replacement. 22 years ago Richards installed the previous system."
Norbert K on January 2025
Family owner and operated since 1959, Richards Heating & Air Conditioning Co. has been designing, installing and servicing residential air conditioning and heating systems in the Washington Metropolitan area. We install “total comfort conditioning” systems to meet the unique configurations of individual homes, recommending systems that fit each customer’s needs. At Richards, we are proud of our work and are dedicated to maintaining a reputation in the industry and the community as reliable experts. Richards is a fully licensed and insured mechanical, gas fitting, and electrical contractor. We qualify in the installation and service of all aspects of heating & air conditioning systems. Our service department also offer three levels of service agreements to meet your needs.
"Yes, we feel they did a comprehensive job replacing the Carrier heating unit and all of the ancillary parts that go with it. The lead service person was very respectful and informative on what the plan was, estimated how long it would take and thorough in reviewing changes when the installation was finished. Richards completed the job within 24 hours of identifying the system needed replacement. 22 years ago Richards installed the previous system."
Norbert K on January 2025
Len The Plumber, LLC. is a leading plumbing and drain company serving Northern Virginia. Our certified professional plumbers are available same day to assist residential customers in Alexandria City, Arlington County, Fairfax County, Fredericksburg City, Loudon County, Manassas City, Prince William County, and Stafford County. 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!
"Had a nasty clog that wouldn't budge no matter what I tried. Called Len The Plumber after my neighbor recommended them. Mike showed up on time and quickly diagnosed the problem - tree roots had gotten into my sewer line! He explained everything clearly and gave me a fair quote before starting work. The crew was professional and cleaned up after themselves. My drains are working perfectly now. Will definitely call them again for any plumbing issues. They handle everything from simple clogs to major water line repairs, which is convenient."
Andrew J on April 2025
Len The Plumber, LLC. is a leading plumbing and drain company serving Northern Virginia. Our certified professional plumbers are available same day to assist residential customers in Alexandria City, Arlington County, Fairfax County, Fredericksburg City, Loudon County, Manassas City, Prince William County, and Stafford County. 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!
"Had a nasty clog that wouldn't budge no matter what I tried. Called Len The Plumber after my neighbor recommended them. Mike showed up on time and quickly diagnosed the problem - tree roots had gotten into my sewer line! He explained everything clearly and gave me a fair quote before starting work. The crew was professional and cleaned up after themselves. My drains are working perfectly now. Will definitely call them again for any plumbing issues. They handle everything from simple clogs to major water line repairs, which is convenient."
Andrew J on April 2025
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.