Lilly's Septic Service

4.9
234 reviews

About

Septic System Service
Lilly's Septic Service provides septic tank pumping, home sale inspections, septic system repairs and drain-field services, septic system installations, and system locating and digging services in the Maple Valley, WA area.

Location

Lilly's Septic Service
26207 Maple Valley Black Diamond Rd SE, Maple Valley, WA
98038, United States

Hours

Reviews

4.9
234 reviews
5 stars
222
4 stars
7
3 stars
1
2 stars
0
1 star
4

What are people saying?

AI-generated from recent customer reviews

Service Quality

Customers consistently praised the quality of service, noting technicians were knowledgeable, efficient, and thorough.

Timeliness

Many reviews highlighted the promptness of service, with technicians often arriving on time or even early.

Communication

Customers appreciated the clear communication regarding scheduling, pricing, and service details.

Professionalism

Technicians were frequently described as friendly, polite, and professional, contributing to a positive customer experience.

Reliability

Long-term customers expressed trust and satisfaction with the company's reliability over many years.
  • MM
    Maggy Mittler
    2 days ago
    5.0
    Lily was great, very through and did a great job explaining things. Also able to schedule the job quickly!
  • EJ
    Elena Jouhari
    5 days ago
    5.0
    If you need a septic company, this is the one you need. I cannot recommend them highly enough!!! Tyler took my call in the morning, put me on their schedule for the same day, communicated thoroughly through the process, did some research and troubleshooting and by 1pm he had our pump running again 🥳 perfect manners, immaculate business ethics, highly professional, local through and through. I would give them 10 stars if I could! Literally, restored my faith in humanity today. Thank you!
  • LG
    Lori Goe
    6 days ago
    5.0
    Septic tank maintenance/pump. Very communicative, technician was very friendly, prompt, quick, willing to answer all questions. No concerns whatsoever
  • RL
    Robyn Lesmeister
    Nov 11, 2025
    5.0
    Lily's is quick with response time and excellent in all areas for customer service and field work. Great local company to care of their own, always a pleasure! Thank you so much!
  • KR
    Katie Rundquist
    Oct 29, 2025
    5.0
    Jeremy with Lilly’s Septic Service came out this morning to pump our septic system. He did an inspection and found an issue with the filter, which we had not been maintaining properly. He showed me how to maintain it and advised on the cleaning schedule, which is annually. Jeremy was friendly and easy to work with. Scheduling with Lilly’s was great: they were able to come out within two days and communicated the arrival window the day before and arrival of the technician the morning of. It was a great experience and we’ll definitely use them again!

Frequently Asked Questions About Lilly's Septic Service

How can I find out what kind of system I have?

Contact our office and we can review county records for your property's history. If no records are available, we can provide a diagnosis over the phone or schedule an on-site inspection if necessary.

How do I locate my septic tank lids?

Contact our office and we will provide you with a detailed map indicating the exact location of your septic tank lid. We can also offer real-time assistance to help you uncover the lid if needed.