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Top-Rated Septic system repair pros in Ashburn - Updated Nov 2026

Avatar for Great Falls Septic Service Inc
Great Falls Septic Service Inc
4.6(
105
)
Septic System - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 1953

Emergency services offered

Credit card accepted

"I originally called another septic company to do my five year pump out of the septic tank. This was our first time having this done because we didn't own the home the last time the septic was pumped. The other company was so incompetent and couldn't find the hole to pump out the septic tank after looking for about 15 minutes. They told me they would need to git a backhoe to come out a dig. I assured him that I remember the selling real estate agent telling me that the previous company that did the work didn't have to go through all that hassle. I was able to find out that the previous company that did the work was Great Falls Septic Service so I gave them a call. The technician was able to find the septic tank riser, which was buried about 10 inches down in about 2 minutes. I am extremely pleased with the service that I received. The technician was extremely efficient, technical, professional, and courteous. I would highly recommend Great Falls Septic Service."
1 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for LOUDOUN SEPTIC TANK SVC
LOUDOUN SEPTIC TANK SVC
4.7(
42
)
Septic System - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 1998

Emergency services offered

Customers say: Quick response

"Loudoun Septic was very straightforward, no-nonsense, and predictable which is very appreciable. They were very responsive and very communicative and did exactly what they said they would do when they said they would do it. They offered a few options but didn't put the hard sell on anything. I would use these guys again in a heartbeat."
Additional Photos
Additional Photos
Recommended by97%of homeowners
Avatar for Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
255
)
Septic System - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Really appreciated the next-day appointment (on a Saturday) and the high quality Service Representative who showed up on time and completed the necessary repair quickly and efficiently. Really excellent service. Would highly recommend Snell Heating & Air Conditioning for any repairs or service. We will definitely call them again if we need any work on our HVAC systems."
Snell Plumber Kitchen
Snell Tech Water Heater
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for M.E. Flow
M.E. Flow
4.3(
6
)
Septic System - Repair

Serving Ashburn, VA and surrounding areas

Approved (Corporate)

In business since 1951

Free estimates

Emergency services offered

M.E. Flow offers FREE in-home consultations for replacement HVAC systems and we are an authorized dealer of most major brands. Established in 1951 by Millard Edward Flow we remain family owned. Replacing your HVAC system and water heater is a big investment. When you go with M.E. Flow your satisfaction is guaranteed. We do not install customer supplied equipment, do new construction, or give quotes over the phone. We send a professional home comfort advisor to your home--even meet you after hours. During your home visit we will design you the perfect system, answer all your questions, and get your system in the family budget. Financing and/or rebates are typically available. Qualified Staff: You get a team of professionals, NATE certification means your getting the best. Company employees are required to pass a background investigation which include a criminal records check and drug testing. We also offer the best guarantees.

ME Flow HVAC Services
2 neighbors recently requested a quote
Avatar for Staci
Staci
4.8(
225
)
Septic System - Repair

Serving Ashburn, VA and surrounding areas

In business since 1984

Free estimates

Emergency services offered

"Our outside faucet was damaged and needed replacement. Adam and his partner arrived promptly and provided a very reasonable estimate to replace the faucet. They kept us informed every step of the way, were quick and efficient with the repairs and left the workplace spotless. We chose The Pipe Doctor because they are a locally owned company with a spotless service record. We were completely satisfied with their service and would not hesitate to use them again."
$50 off Any Plumbing Service - Mention this post when scheduling (703)388-6529
Sewer Replacement  - Call to schedule your estimate
Clogged toilet. Clogged remove - Root intrusion found
Descaling old cast iron pipe with Sewer lining. Call today and ask about Trench-less Technologies
Clogged bathroom sink. Call and ask about snaking. 
Call The Pipe Doctor Plumbing & Drain today to schedule.

+13

Recommended by94%of homeowners
Avatar for FELLENZ Contracting Services LLC
FELLENZ Contracting Services LLC
5.0(
8
)
Septic System - Repair

Serving Ashburn, VA and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"The Service was great. I needed the work done right away and Aaron Fellenz was at my house on time and did the work great! He helped me diagnose and clear a clog that was on the intake and offered excellent advise on managing the septic system."
Septic Systems Project
Wells & Pumps Project
Septic Repair
Septic Repair Project
Excavating Project

+96

Recommended by100%of homeowners
Avatar for Clover Services
Clover Services
4.6(
1,086
)
Septic System - Repair

Serving Ashburn, VA and surrounding areas

In business since 1981

Free estimates

Emergency services offered

"Their technician mason Craig was obviously very well trained. He diagnosed the problem within just a few minutes and thoroughly checked the rest of the AC unit components and HVAC system. Clover services was Great about getting someone out to the house late on a Friday afternoon. Mason was good about explaining everything he was going to do and how the AC system worked and he gave me an estimate for a future upgrade of the system as mine is getting older. I would highly recommend this company they are very professional and well trained"
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Additional Photos
Additional Photos

+40

Recommended by87%of homeowners
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FAQs for septic system repair projects in Ashburn, VA

You should have your septic tank inspected at least once every one to three years. Regular inspections help catch minor issues before they become major problems, ensuring your system operates efficiently and extends its lifespan. You can also have your pro take care of routine septic system maintenance tasks at the same time as your inspection.

A septic tank must be inspected before buying a home to ensure the system is sound and compliant with local regulations. A comprehensive inspection evaluates all critical components and detects hidden faults that could lead to expensive repairs. This detailed review protects your investment by verifying the system’s integrity and reliability.

A septic tank's leach field fails when it encounters system overload and deteriorating conditions. Excess water usage beyond the field’s capacity and environmental stress lead to hydraulic failure. Aging infrastructure and insufficient maintenance further contribute to failure. Distributing water use evenly and scheduling regular maintenance, including enzyme treatments when necessary, preserve the leach field’s integrity.

A septic system lasts between 20 and 30 years. Steel tanks function for 15 to 20 years, concrete tanks operate for 20 to 40 years, and fiberglass or plastic tanks remain durable for 30 to 40 years. Consistent maintenance, including regular pumping and inspections, extends these lifespans by preventing buildup and structural damage, ensuring reliable long-term performance.

A failing septic system presents clear signs such as slow-draining fixtures, foul odors at or around the leach field, and overly green patches of grass. Additional indicators include persistent toilet flushing problems, standing water near the system, and noticeable gurgling noises from pipes. These symptoms reveal blockages, structural damage, or leaks. Immediate professional evaluation is essential to address these issues and prevent extensive repair costs.