4.8 
54 *The Angi rating for Septic Tank Service companies in Union, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.
*The HomeAdvisor rating for Septic Tank Service companies in Union, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.
Last update on May 24, 2026
Serving Union, CT and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Very friendly, thorough and professional. Did a great job. Inspected tank and informed me of any areas of concern. Reasonably priced."
+33
Serving Union, CT and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
We are a family owned company since 2004, committed to becoming the contractor of choice, pursuing excellence through dedication and experience with an ongoing passion to deliver quality, timely and affordable services. \nOur focus of business is on Septic Installation, Excavation, Prepare Building Site, Land and Tree Clearing, Grading, Drainage Issues, Site work for sheds and garages but not limited to.
+131
Serving Union, CT and surrounding areas
In business since 2017
Emergency services offered
Credit card accepted
"Glenn handled our clogged septic tank problem. Problem rectified within a few hours of my call. He was very professional and knowledgeable and we are so satisfied with the service provided!"
Serving Union, CT and surrounding areas
In business since 2021
Free estimates
Credit card accepted
"Five stars for 365 Septic! Dylan was prompt, personable, extremely efficient, and very competitively priced. Can’t recommend this company highly enough!"
Serving Union, CT and surrounding areas
In business since 2017
Free estimates
Small jobs welcome
"We have been using Septicology for our clients' septic system inspections and certifications for about one year now. Daniel presents a professional demeanor and his detailed reports include complete documentation of testing results including photos of all conditions he is seeing. We are very pleased with Daniel's great services and pricing and will continue using Septicology, LLC."
Serving Union, CT and surrounding areas
In business since 2010
Free estimates
Emergency services offered
Primos offers Commercial/Residential Concrete patios/driveways/stamped and decorative, Asphalt Paving/Sealcoating, Paver Patios and Retaining Walls. We also offer excavating and drainage, plus sewer line replacements. \nWe will offer the best price with fast, reliable, and professional service. Our customers are our number 1 priority. We listen to exactly what you looking for and we will make sure you are happy before we leave.\n
Serving Union, CT and surrounding areas
In business since 2008
Emergency services offered
Credit card accepted
"I specified that it was a tankless water heater, yet not surprisingly I was referred to a plumber who didn't know anything about tankless heaters, resulting in a waste of a couple of days. The second person did know about them, and so far the repair is working (fingers crossed). I wish CHW would pay attention to the details in my claim."
Serving Union, CT and surrounding areas
In business since 1971
Credit card accepted
"Takes for ever to get a return a call. Also took a week to get someone out for repairs. They said they would reimburse me for septic repairs and it took over 3 months for that to happen."
+2
Serving Union, CT and surrounding areas
Free estimates
Small jobs welcome
Offers commercial services
Hi i am a excavation company i do septic system sewer lines water lines dig for foundation grade and stump all your Excavation needs
Serving Union, CT and surrounding areas
Specializing in hauling! We always guarantee your satisfaction and won’t leave until the job is done right. We take pride in ourselves and on the quality work we provide, while always delivering great customer service! Check out our services offered, then call --or-- click to schedule a free estimate today!
From average costs to expert advice, get all the answers you need to get your job done.
If it’s been there for a while, it can be hard to find the septic tank in your yard. Learn how much it costs to locate a septic tank with this guide.
It’s crucial to install a septic tank with the right volume to avoid wastewater backups. This guide will help you calculate the right septic tank volume.
Septic tank sizes vary depending on the size of your home, how many people live there, how much water you use, and more. Read on to learn how to determine the right size for you.
If you’ve never lived in a house with a septic system before, you might be wondering: Are septic tanks bad? Here are some of the pros and cons.
Want to learn how to build a septic tank for your rural or off-grid property? First, check your local laws, then dive into these general guidelines.
How deep is a septic tank, and why is it buried? Learn where to place your own septic system as well as how to maintain it and how much it costs.
