Very good service from Spencer. The price was reasonable, especially to have both of our tanks…read morecleaned out. Spencer went over how our system worked, and gave good advised the system and pointed out potential issues to consider for the future. The cleanup of tanks did not take long and was thorough. Before leaving, I was able to inspect the job before the tanks were closed up. The site was completely cleaned up and payment was easy. I'll be using A-1 Septic Service for the next time we need this service.

Go ahead and book this company, you will not be disappointed! Scheduling is a breeze. Vanessa is…read morepleasant and friendly. Spencer was fantastic, extremely educational which I appreciate more than he knows. We are new to a home with a septic system and I learned more in the time he was here than in the last 3 years we've lived in our home.

Very helpful driver who explained his service and gave me some advice on monitoring our septic…read moresystem.

Excellent customer service and fast to get the work done. Have used then 2 times and will call…read moreagain.

Craig needs to file the paperwork with the county that he was paid to do. Not responding to…read morenumerous people that paid him for work.

What can one say about Septic Service other than it's a crappy job, but at least there is some else…read morewho will come up and take care of your, you know what! I called on a Monday and they came up the next day. This was my first time getting our septic pumped so I had lots of questions and he was great to answer all my questions.

Jared did a fantastic job with our septic tank replacement and even helped with some larger…read morelandscaping projects like laying weed barrier and spreading road base overtop. When our septic tank collapsed unexpectedly, Jared came to the rescue by navigating Boulder County permitting (not an easy task) and rushing the project through to a speedy resolution. He advised on the best solution, navigated a tricky location expertly, and worked diligently to fix our septic emergency. Can't recommend Fahlbros enough!

I highly recommend calling these guys. Jared was wonderful to work with from scheduling to…read moreanswering all my questions throughout the project. He fixed a crack in our clay sewer pipe, as well as some unexpected repairs where he saw future problems (all for the original quoted price- which was still lower than two other companies.) He worked diligently to avoid damaging the mess of utilities in front of our old house, even though they all ran right near the breakpoint, and they made sure my yard was put back together when they were done. Thanks for being awesome!

Summary: Honest and straight-forward company to work with. Not only are their prices at or below…read morewhat others charge, I also feel very confident that they are not upcharging for unnecessary services. Highly recommend. Sewer main replacement (clay) Oct 2024: Sewer Lines Only (SLO) scoped and replaced my outdoor 90yo clay sewer line. They said the internal cast iron was solid, and I was scheduled within the week. Hyperflow's estimate said the cast iron needed replacement. The team of 3 was on time, worked independently, and was able to put the fence back up that needed to be taken down. No issues, until 2026. Sewer main backup (May 2026): "Flushable" wipes got caught on the rough interior cast iron, and caused a backup. Fit-It-24-7 came and cleared the clog, and sent a second tech to do a scope, with the water OFF. Both techs said "Look at the high areas (yellow in the attached pic) where the cast iron is 'trenched'. The high sides are the pipe, and the in the section with the muddy water, that's where it's completely rusted through, and leaking sewage." They quoted a 8month teacher's salary to do a repair. SLO came to do a scope. The tech (Cameron - very intelligent guy) kept the water RUNNING, so his scope had a clear view of the bottom of the pipe. "The cast iron is rough, so it snagged the wipe. It's in good shape though." But - what about the trenching? "Look here - the water is clear, and you can see to the bottom and see the cast iron. What looks like a 'trench' is just decades of built up residue/oils. The pipe is beneath that (see green circle in my pic) There's no leak, but I recommend a rotary chain to resurface the cast iron, to remove rough areas that snag wipes." The cost was 99% less than the bogus quote.

I honestly can't say enough about this company. This is my second repair with Sewer Lines Only, a…read morecollapsed secondary line replacement in 2024 and a collapsed lateral this month on a 120+ year old duplex in Sloan Lake. I was 7 days from closing on a sale, the line was discovered during inspection. The other duplex owner was rightfully out of her mind because the line ran under her beautiful stamped patio. Sewer Lines Only recommended tunneling under the patio from my property. We had (I'm counting....) 7 very reputable sewer companies quote this job. No one else mentioned going in from the side, and when I circled back to ask, none could. SLO's quote was 25% lower than the next lowest bid (thousands in savings) and 50-75% lower than most bids. So I was hesitant. Enter Joe from SLO - a project manager or engineer? He was so confident they could do this job from the side (really confident, not salesy confident), he made himself available to me at any time to explain the work but never once called me to "seal a deal." He probably took 20 calls/texts from me. I took the gamble and got on a plane to Denver. Jerry and his team showed up promptly for the job, were professional, courteous, and thorough. The line was fixed, no patio or fence demo required. When a possible additional leak was discovered with scoping, Joe came out and confirmed personally that there was no issue. Enter Monica in Billing who went the extra mile to figure out how to split invoicing to bill the other owner her portion and free my property up for sale. And did it gladly. Intelligent, progressive solutions, lower-cost, personalized service - same as in 2024 when I worked with Cameron. They dug a trench in my garage and repatched with concrete. No issues 2+ years in. I'll never use anyone but SLO.

Needed to replace our hot water heater. Actually asked 7 businesses for quotes. 2 businesses…read moredidn't even bother coming to our home. Drain Terrier sent 2 veteran plumbers who looked the situation over, explained how they would tackle the job, and how to get our 42 year old house up to current code. Awesome service that went smoothly. A few weeks later, while we were out of town, our tub backed up. I called Drain Terrier from Europe and arranged for an estimate. Again, great service! Can't say enough good things about how professional and thoughtful this business is.

I was quoted one price and ended up paying way more. The tech didn't even seem like he knew what he…read morewas doing. Not happy with this place at all. The tech left me with a sink that I have to replace parts on. Now they are calling me and harassing me telling me that I need a new water heater immediately. Makes me think they did something to mine to make it leak. Stay away from this business.