Top-rated septic system installers and replacers.

Get matched with top septic system installers and replacers in Fairfax, VA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Septic system installers and replacers in Fairfax

Avatar for Great Falls Septic Service Inc
Great Falls Septic Service Inc
4.6(
105
)
Septic System - Install or Replace

Serving Fairfax, VA and surrounding areas

Approved

In business since 1953

Emergency services offered

Credit card accepted

"Almost universally speaking, septic problems on weekends are never a good thing. Our basement started flooding and we discovered it as a septic issue. I started calling around — most businesses could not help until several days later. I finally called Josh at Great Falls Septic’s emergency line. He came quickly and had a swift plan of attack upon arrival. He give me the rundown of the problem, and gave us advice on how to avoid issues in the future. Josh was reliable, smart, skilled and honest. And well priced. I can not say enough good things about josh and Great Falls Septic. They made and awful Saturday morning flood turn into a great business experience. Thank you!"
4 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for A & A Septic Repair
A & A Septic Repair
5.0(
71
)
Septic System - Install or Replace

Serving Fairfax, VA and surrounding areas

Approved

In business since 1963

Free estimates

Emergency services offered

"Rick Aits not only answered my initial call at night; showed up the next morning before 8am and diagnosed my issues. My pumping station pump and parts were over 26 years old so Rick replaced everything including pump, check valve, float controls, wiring outside box, wiring conduit and other miscellaneous parts the day after I was able to get both tanks pumped out. I couldn't be more satisfied with a 40 year pro with helper (20 years himself). I knew immediately that Rick knew this system inside and out and he even visually inspected my septic field and researched it at the county records. And for all that parts, materials and expertise his price was super reasonable. Thanks Rick and Mike!"
Response time7 hrs
Recommended by98%of homeowners
Avatar for LOUDOUN SEPTIC TANK SVC
LOUDOUN SEPTIC TANK SVC
4.7(
42
)
Septic System - Install or Replace

Serving Fairfax, VA and surrounding areas

Approved

In business since 1998

Emergency services offered

Customers say: Quick response

"Loudoun Septic just left after pumping our septic system today. They were prompt, professional and answered all my questions. I recommend! Shout out to Danny Gray and John Stein V who did the work today. Thank you."
Additional Photos
Additional Photos
1 neighbors recently requested a quote
Recommended by97%of homeowners
Abbott's Septic Repair, Inc.
5.0(
10
)
Septic System - Install or Replace

Serving Fairfax, VA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"John is very responsive and professional when it comes to dealing with the customer. He does what he says he will do. His team was on time to do the diagnose and assess the problem. The septic pump install went without a hitch. He even let me borrow a loaner pump so we can live normally while the new pump was being ordered,"
Response time7 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for M.E. Flow
M.E. Flow
5.0(
5
)
Septic System - Install or Replace

Serving Fairfax, 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
5 neighbors recently requested a quote
Avatar for 1-800-Plumber + Air of Centreville VA
1-800-Plumber + Air of Centreville VA
New to Angi
Septic System - Install or Replace

Serving Fairfax, VA and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

1-800-Plumber +Air is located in Centreville, VA and is focused on being the BEST! It’s not about being better than everyone else, instead our focus is on providing you with the fast, dependable plumbing and emergency services when you need it most. Our goal is to give you the BEST experience you have ever received from a service based business.\n\nThe 1-800-Plumber +Air team has the expertise to meet your needs with an easy to remember name and phone number, so call us today for help with all your Centreville, VA home or business plumbing, drain cleaning, and heating and cooling needs. We are ready to meet your needs so call us today.

Gallery
Gallery
Gallery
Avatar for Staci
Staci
4.8(
225
)
Septic System - Install or Replace

Serving Fairfax, VA and surrounding areas

In business since 1984

Free estimates

Emergency services offered

"The problems were strange and required some investigation. The team first focused on the washer drainage. Eventually they used a camera inserted into the clearance pipe to check the drainage pipe from the house to the septic tank. They discovered a "dip" in the pipe, possibly resulting in an obstruction that might have caused the water to back up, kind of like a rock in a stream. (Admittedly, I may not describe this as clearly as I should...not a plumber!). Using shovels and an excavator, they dug about 5 feet into the ground between the house and the septic tank, ultimately discovering both the dip/weakening in the pipe and a 3" crack (almost half of the pipe) closer to the house. I feel like their work saved us much more money down the road, because without investigating/fixing the "dip" in the pipe, we would never have know about that crack. Without repair, it could would likely have begun leaking back into the foundation. The team was able to replace a 10' section of pipe, connect it to the septic, and confirm a steady drain of water. We have not had the backup or any drainage issues since. However, the smell didn't completely leave the laundry room. They came out again and, after a couple of smoke tests and cuts into the drywall, discovered a vent pipe that had in years past (we've owned the house for 5 years) simply been cut to move the washing machine hookups to the side wall (rather than the back). Although the smoke largely discharged through the roof vents as designed, this uncapped vent allowed septic odors to creep back into the washing room, particularly in the morning when the air outside was heavier. They were able to cap the pipe, and that removed the odor. We have not had any issues since they completed their work. The team was very responsive, and worked with me to reschedule the washing room work after a death in one of the worker's family...only slipped a single day. They also reduced the cost for disconnecting/moving the washer and dryer, since they didn't reconnect them (We were of course going to have to do get drywall repair/paint work after they finished). Although I am hoping to avoid any plumber issues for a while, I know who I will call if something comes up. Absolutely recommend this team."
$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
...
Showing 1-10 of 53
FAQs for septic system installation and replacement projects in Fairfax, VA

Most septic system replacements require several days to complete, not including permitting and preparation time. The process begins with site assessment and testing, followed by excavation, component installation, and final inspection. Weather conditions, property accessibility, and inspection schedules can all affect your project timeline. Your contractor can provide a more specific estimate based on your property's unique characteristics.

Standard homeowners' insurance policies don't cover septic system replacement due to age or normal deterioration. Coverage may apply if damage results from specific covered events, but routine maintenance and eventual replacement are generally considered homeowner responsibilities. Review your policy details or speak with your insurance agent to understand your specific coverage limitations.

Look for multiple indicators such as slow-draining fixtures, unusual gurgling sounds in plumbing, sewage odors inside or outside your home, or wet spots in your yard. Unusually lush grass over the drain field area, frequent backups, or recurring repair needs might signal system failure. Addressing these warning signs promptly can prevent property damage and health hazards.

DIY septic installation is not recommended and may violate local regulations. Professional installation ensures compliance with health codes, proper design for your specific site conditions, and appropriate safety measures. The specialized equipment, technical knowledge, and permitting requirements make this a job best left to licensed professionals who can guarantee the system's safety and effectiveness.

With proper maintenance, including regular pumping, a drain field lasts 20 years. Various factors influence system longevity, including household size, water usage patterns, and soil conditions. Regular professional inspections can help determine when replacement becomes necessary. If your system requires increasingly frequent repairs, replacement might be more economical than continuing to address individual problems.

The Fairfax, VA homeowners’ guide to septic system installations and replacements

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