--- title: "Monoflo Septic Tank Co" description: "Monoflo Septic Tank Co says it has been in business for 70 years, and its Better Business Bureau profile describes complete septic tank cleaning and repair" doc_version: "2026-10-16" last_updated: "2026-10-16" --- # Monoflo Septic Tank Co **Trade:** Demolition & Excavation · **Address:** 261 Spencer Plains Rd, Westbrook, CT 06498 · **Phone:** (860) 399-9427 · **Website:** http://monofloct.com/ · **Languages:** English **Rating: 2.9/5** (medium confidence) — from 6 reviews across 5 sources. 83% of sentiment-scored reviews read net-positive. Last 6 months: 0 reviews, 0 negative. ## The honest read Monoflo Septic Tank Co says it has been in business for 70 years, and its Better Business Bureau profile describes complete septic tank cleaning and repair. A 2024 customer said Monoflo pumped out their septic system every year and left the lawn the way they found it. That 2024 customer also said they took the time to explain how the systems work and showed up on time, as scheduled. A 2024 homeowner said the toilets, washer and shower all stopped working with water coming up, and that Mark came fast and fixed the issue on a weekend. A 2025 customer said Mark serviced their residence along with multiple commercial accounts and answered his phone at all hours. A 2024 customer said just one side of a two-compartment tank was pumped on two visits. That 2024 customer said the company came out and pumped the second vault only after the town's sanitarian wrote a letter to the company. Its Better Business Bureau grade is D-, with two complaints. **Strengths:** - Yearly pump-outs — a 2024 customer said they showed up on time - A weekend backup — a 2024 homeowner said Mark came fast and fixed it **Concerns:** - Half-pumped tank — a 2024 customer said one of two compartments went unpumped - BBB grade — rated D- with two complaints ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - Says it has been in business for 70 years _(confidence: medium)_ - [Official Website](http://monofloct.com) — “Self-reported 70 years in business” - Its BBB profile describes complete septic tank cleaning and repair _(confidence: medium)_ - [Better Business Bureau](https://www.bbb.org/us/ct/westbrook/profile/septic-tank-cleaning/monoflo-septic-tank-company-inc-0111-77000744) — “About (Better Business Bureau, self-described): Monoflo Septic Tank Company, Inc. offers complete septic tank cleaning and repair.” - A 2024 customer described yearly septic pump-outs with the lawn left as found _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUR6a08yNndBRRAB!2m1!1s0x0:0x8201fccef073768e!3m1!1s2@1:CIHM0ogKEICAgIDzkO26wAE%7C%7C?hl=en-US) — “5★ We have our septic system pumped-out every year by Monoflo. Probably overkill, but we had a septic system fail several years ago at our p…” - A 2024 homeowner said Mark came fast and fixed a septic backup on a weekend _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURMdmVTM1V3EAE!2m1!1s0x0:0x8201fccef073768e!3m1!1s2@1:CIHM0ogKEICAgIDLveS3Uw%7C%7C?hl=en-US) — “5★ Mark from Monoflo is the best. We had all the sudden not working all toilets, washer, shower. The water was coming up. Called Monoflo the…” - A 2025 customer said Mark answered his phone at all hours _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xGQmEyOU1WVGd0UkZObGRYRXRUVEZrTlV4dllYYxAB!2m1!1s0x0:0x8201fccef073768e!3m1!1s2@1:CAIQACodChtycF9oOlFBa29MVTgtRFNldXEtTTFkNUxvYXc%7C%7C?hl=en-US) — “5★ Mark is legitimately one of the kindest people I have ever met. He services multiple commercial accounts for me as well as my residence.…” - A 2024 customer said just one compartment of a two-compartment tank was pumped until the town sanitarian wrote to the company _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNILWJ5WDN3RRAB!2m1!1s0x0:0x8201fccef073768e!3m1!1s2@1:CIHM0ogKEICAgICH-byX3wE%7C%7C?hl=en-US) — “1★ Have used Monoflo for my last two septic pump outs. Being onsite for both of them I observed that they only pumped out one side of my two…” - Better Business Bureau grade of D- with two complaints _(confidence: high)_ - [Better Business Bureau](https://www.bbb.org/us/ct/westbrook/profile/septic-tank-cleaning/monoflo-septic-tank-company-inc-0111-77000744) — “Better Business Bureau grade: D-” - [Better Business Bureau](https://www.bbb.org/us/ct/westbrook/profile/septic-tank-cleaning/monoflo-septic-tank-company-inc-0111-77000744) — “2 complaint(s) on file (count only)” - Specializes in Demolition & Excavation _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUR6a08yNndBRRAB!2m1!1s0x0:0x8201fccef073768e!3m1!1s2@1:CIHM0ogKEICAgIDzkO26wAE%7C%7C?hl=en-US) — “5★ We have our septic system pumped-out every year by Monoflo. Probably overkill, but we had a septic system fail several years ago at our p…” - [Better Business Bureau](https://www.bbb.org/us/ct/westbrook/profile/septic-tank-cleaning/monoflo-septic-tank-company-inc-0111-77000744) — “About (Better Business Bureau, self-described): Monoflo Septic Tank Company, Inc. offers complete septic tank cleaning and repair.” ## License Status: **not_found** — verified against the official CT state registry, never self-reported. Re-check at the official registry: https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx ## Sources - [Official Website](http://monofloct.com): 70 yrs in business · Self-reported profile and service details - [Google](https://www.google.com/maps/search/?api=1&query=Monoflo%20Septic%20Tank%20Co&query_place_id=ChIJmXNxqXYk5okRjnZz8M78AYI): 4.4★ from 10 ratings - [Google Reviews](https://www.google.com/maps/search/?api=1&query=Monoflo%20Septic%20Tank%20Co&query_place_id=ChIJmXNxqXYk5okRjnZz8M78AYI): Listed on this source - [Better Business Bureau](https://www.bbb.org/us/ct/westbrook/profile/septic-tank-cleaning/monoflo-septic-tank-company-inc-0111-77000744): Listed on this source - [Local News](https://www.ctinsider.com/news/article/Holbrook-will-seek-nomination-for-his-old-seat-in-11933020.php): Listed on this source ## Recent reviews - **5/5 · Google Reviews · Kevin Olenik · 2026-01-09**: I always have a good experience using this company. - **5/5 · Google Reviews · Nick Kanaras · 2025-11-15**: Mark is legitimately one of the kindest people I have ever met. He services multiple commercial accounts for me as well as my residence. He answers his phone and has been there for me at all hours of the day and night to ensure all my septic needs are taken care of quickly and accurately. He has g… - **5/5 · Google Reviews · Greg Ellal · 2025-07-17**: This company is great. We were in a real bind with the septic at our company's warehouse. Monoflo came right out and fixed the problem immediately. Highly recommend this company. - **1/5 · Google Reviews · James Delldonna · 2024-09-06**: Have used Monoflo for my last two septic pump outs. Being onsite for both of them I observed that they only pumped out one side of my two compartment tank. After the second pump out I did some research and found out that almost all newer septic systems need both compartments pumped out separately. I… - **5/5 · Google Reviews · Mia P · 2024-06-29**: Mark from Monoflo is the best. We had all the sudden not working all toilets, washer, shower. The water was coming up. Called Monoflo they right away knew that the issue was septic. Mark came so fast, right away he fixed the issue and we didn’t have to leave our place as it was weekend. Thank you ve… - **5/5 · Google Reviews · Garry Johnson · 2024-06-06**: We have our septic system pumped-out every year by Monoflo. Probably overkill, but we had a septic system fail several years ago at our prior residence - we're not taking any chances!! The guys at Monoflo are very professional. The always do things right - including making sure the lawn is left they… --- Data freshness: last scanned 2026-10-13T07:46:41.016Z. Cite as: Monoflo Septic Tank Co — Tavlee (https://tavlee.com/contractor/monoflo-septic-tank-co-westbrook) Source: https://tavlee.com/contractor/monoflo-septic-tank-co-westbrook ## Sitemap [Full site index](https://tavlee.com/sitemap.md)