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    Apex Underground

    3.5 (55 reviews)
    Open 8:00 am - 4:00 pm

    Services - Apex Underground

    Excavation

    Plumbing installation or replacement

    Plumbing repair

    5 More Services

    Sewer installation

    Sewer repair

    Trench digging

    Water pipe installation

    Water pipe repair

    Apex Underground Photos

    Recommended Reviews - Apex Underground

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    Reviews With Photos

    Tammy C.

    we had apex come out to fix a break in the sewer line. never done. how we found out was a foot of poop water in our basement. charged over 5000. when i called letting them know we had water in the basement and we have a 5 year warranty. she pretty much said to bad. nasty people working there and obviously do not know what they're doing. bad customer service. go through mr. rooter very experienced and good people service 303 975 0005 give them a call they treat you right

    Apex uses duct tape to tape up plastic sheeting, which peels off paint & plaster when removed.
    Tristan B.

    I can't recommend APEX Plumbing. tl;dr: Based on my experience and reading the other Yelp reviews, I'd say they are great at doing sewer work and not so great at doing water service lines. Their communication before, during, and after the project left A LOT to be desired. Additionally, for a company that prides themselves on turn key work and leaving everything in the same condition it was found, they definitely fell short with my job. --- After doing a lead water test from Denver Water, I found out my water service line was made of lead, and I worked with Denver Urban Renewal Authority (DURA) to get the line replaced. In the bidding process, DURA selected them for the job because it was the lowest bid. After the line was replaced, I found out they were the only bid submitted, which was done on 1/17/2018. When they gave me an estimate for my project in early February, they suggested we use their mole borer because of the location of my existing water line. They also said using that method would require the least amount of demolition inside my house. The water service line comes into the house in my bedroom through the floor, so I was glad Jim, their estimator, had a plan for minimizing the impact to my life & house. Jamie, who schedules the work, said the job would only take 1 day. It took over 2 months to get my project scheduled, and I had to follow up multiple times with Jamie to check on the status (part of this delay was the Denver Water being slow, but I'm not sure how much... I was told by DURA it should take 2-3 weeks). Their crew showed up without any knowledge about what we'd talked about during the estimate. Their crew didn't want to use my front door for access and instead opted to walk on my freshly planted grass seed to access the back door. This only stopped after I asked their supervisor, Mike, to ask them to use the front door. After looking at my existing service line, Mike, said that they were not going to be able to replace it in the manner I discussed with the estimator, so more demolition was necessary and they started jackhammering the floor and dismantling the cabinet containing all the water valves. Their crew used duct tape to secure the plastic sheets, and when removing them after the first day, the duct tape took off paint from my walls and ceilings as well as left residue on my floors. Blue painters tape was used a few places, but I have no idea why it wasn't used everywhere like it should have been. They worked all day at getting to a state where they could replace the line. Mid-afternoon, I was notified that the job wouldn't be completed that day. At the end of the day, my bedroom was left in an unusable state. The next day, the crew arrived early and continued on their work. They did not put out protective plastic throughout the house for this day's work like they'd done the previous day. More jackhammering of the floor/foundation was done. They got the new water service line installed mid-afternoon and they then focused on putting everything outside back together. They poured a new concrete patch for the sidewalk that was removed and filled in the parking strip with dirt. The meter pit they installed is about 2-3 inches too high, so it'll be an obstacle to avoid while mowing once grass is planted. They said the job was done even though nothing was put back together in my basement. I had to contact them again to get this addressed. After contacting Jim about the incomplete job and explaining the difference between what I was told they were going to do and what actually happened, he apologized for any miscommunication, but said "Unfortunately the Dura program is always low bid, so any better technology causing additional costs are rarely included." This wasn't what he said during the estimate. Jim said that Mike would come by to "check the grade of the meter pit and address any other tie up issues," but he never showed up. Someone from APEX came by to verify the sprinklers were working. He agreed about the meter pit being too high and said they should be able to fix it. Mike did not show up to take care of the basement or the meter pit & shutoff that were set to high. Denver Water came to inspect their work and agreed the meter pit & shut off were too high and failed their inspection (with an additional issue related to the install inside the meter pit). Jim finally responded to my email saying since it's a DURA job, interior repairs are not included. If this was the case, Mike shouldn't have said he'd fix it. Three days after they "completed" my job, a crew showed up to fix the height of the meter pit & shutoff valve. While fixing this, they cracked a large paver in my flagstone walkway that's between the curb and sidewalk. It's now been seven business days since my job was "completed". My basement is still torn apart, I still have cracked paver, and I haven't heard anything from Apex about getting this taken care of.

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    The company was very eager to get paid, but not nearly as eager to show proof of satisfactory work done.

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    Page 1 of 2

    Ask the Community - Apex Underground

    Review Highlights - Apex Underground

    We've been in the Mayfair neighborhood (east Denver) for over 30 years.

    Mentioned in 6 reviews

    Read more highlights

    Black Hills Energy

    Black Hills Energy

    (41 reviews)

    The first time I called to set up gas service the representative told me that they "do not support…read moremy address in monument!" Then told me to "try excell!" I had called all around the city with 5 different electric companies telling me that black hills is the one that serves my address in monument! I called back up and a new representative tells me they do service my address! Why did the first representative lie to me and tell me my address "doesn't exist!" Then I get told a technician will be there sometime in the day! He shows up around 5:30pm! Way past the time stated he would be there! Hops over my fence, doesn't call or text or even knock on my door or even ring the door bell! I walk outside and see him hopping over my fence i asked who he was! He gives a nasty attitude and reply "who do you think it is!" Kevin was his name and he was very rude and disrespectful! I have license to carry and if we didn't have this conversation I would have every right to defend my property! I will never recommend you guys to anyone! The only reason I use your service is because you are the only ones who services my house! You deserve 0 stars!

    I have a 990 some odd square ft home. I have bills that range from $170 to $380.00. Usually the…read morebill is over $300.00 Black Hills techs have come out 3 times and the only thing they could find wrong were 2 lightbulbs which they changed. There is no reason on Gods green earth that I should ever have a bill over $200.00. I have called and complained and still nothing ever changes. They even told me to hire my own electrician. This is b.s. If I could find a way to get them shut down I would.

    Sewer Lines Only - Water line repair.

    Sewer Lines Only

    (66 reviews)

    This was a job we have dreaded for several years. We knew a sewer line replacement was coming but…read morethe expense involved really worried us. We had the job quoted on several occasions with bids coming in from 10k to 14k and we always opted to just keep waiting and shopping. We used Yelp to start a "job" and half a dozen companies looked us up. We spoke to four of them then had Sewer Lines Only come out and talk to us. My sister had used them a year earlier and recommended them from the list of possibles. A man named Murray showed up at our house and we liked him immediately. He was honest, funny and simply very likable. He scoped our line and told us we're not in desperate need of a line replacement. We enjoyed the honesty. We had roots in our line and needed to have them cleared about once a year. Not a huge deal but the sewer backups were aggravating and always happened at terrible times. Murray worked us up a quote and we were flatly shocked and dumbfounded at the quoted price. 5k for thirty three feet of line replacement. We started wondering what the catch was. How was this possible? A full half of the best quoted price of the last three years. We took to Yelp and the BBB to research this company and the reviews were stellar as was their A+ BBB rating. A few days later I stopped in their office to accept their bid. That's where I met two more of this companies stellar staff, Monica and Kim. These two women put us further at ease this thus was going to be money well spent. A week later, Pablo showed up at our house with his crew and a skid steer. Pablo treated us like gold and was happy to learn he actually worked for Sewer Lines Only and was not a contractor. This man is a surgeon with a back hoe. They had all thirty three feet dug up and replaced in three hours. We were only minus a sewer line for three hours which really minimized our in house inconvenience. The next several hours were simply waiting for the city inspector to show up. It was very confidence inspiring when the inspector told us that he doesn't really even need to check Pablo's work as he simply never makes mistakes. The trenches were filled back in and tamped down very well. Mi sidewalks, lawn and driveway were cleaned up very well. Murray then returned and scoped the lines to make sure it was all good and he scraped the inside of our cast iron line inside the house. This was an absolutely exceptional experience from the get go. An unbeatable price and first class staff and workmanship. It's nice to have this huge worry off our backs and it came with a five year transferable warranty. Thank you Murray, Pablo, Monica and Kim from very happy customers.

    Gave an honest assessment on the sewer line, which was that work was not needed. Definitely get a…read moresecond quote on any sewer line estimate a plumber gives you.

    Xcel Energy - The line that is supposed to be removed and buried

    Xcel Energy

    (268 reviews)

    CBD, Northwest

    I just had service turned on and the technician who came to turn it on was one of the most…read moredelightful human beings I've met lately. His name was Victor, and he's a younger guy. Just went above and beyond to be helpful, but more than that, he also had such a pleasant and kind demeanor that I wanted to make him stay and be my new BFF. What a sweetheart. As a woman who is often home alone for these calls, I've had more than one uncomfortable experience. Victor just radiates reassurance and put me instantly at ease. I called his supervisor, Steve, to tell him what a good experience I had, but I also want to recognize him on here. He was only here for about 20 minutes, total, but made a very positive impression. He turned on the line, was very friendly to my pets, and then took the time to both explain how the water heater and furnace system work, how to check them for any problems, how to adjust the water heat level, and then checked around the house for CO leaks, because I'm a jeweler and have had false positives due to my acetylene torch. He was efficient, so it's not like he wasted time, but in that short amount of time, I learned things about my house's heating/water that I'm embarrassed I made it to this age without knowing. Also, the exhaust tube for the water heater wasn't lined up properly, so he adjusted it and double tested it to make sure my kids and I would be safe from CO leaks. If every big company had employees this competent, personable, and helpful, you'd have a lot fewer Karens b*tching about things. Victor, if you ever see this and are in the market for a new bestie, I'm in

    Excel left their utility pole tied to a tree for 6 months. I tried several times to get anyone in…read moremanagement to call me about this but they never did. I was told by customer service at Xcel that the company wasn't sure if the utility pole was an Xcel owned pole. There is a metal plate on the pole that clearly has Xcel engraved on it . Xcel doesn't take care of hazardous conditions that their company creates.

    The Gas Connection - Winter cat napping area.

    The Gas Connection

    (64 reviews)

    Trying to schedule a cleaning and checkup on our gas fireplace was more complicated than our…read moremortgage application. The scheduler (Sherri) also exhibited some pretty severe passive aggressive tendencies when I told her that I hadn't gotten her phone call on the day of our 2nd appointment (and 2nd cancelation) and I called to ask when the technician might be coming by. I live in Boulder in a known cell tower dead zone and often miss calls or drop calls midway. She was snarky when I told her that I hadn't gotten her call. I gave her my daughter's cell phone as a backup in case she had trouble reaching me for my 3rd scheduled make-up appointment. When I didn't get that call but she reached my daughter my daughter called me and asked me what her problem was bc she was so snarky with her. So I got the third makeup appointment booked and decided that I would check other places as I really was starting to wonder about this place and their other negative Yelp reviews reinforce the feeling that I got from my 3-4 contacts with this outfit. Got booked with a terrific company, A Brighter Glow in Brighton and had the best experience on the phone with an immediate confirmation and followup text and the tech Roy was professional and prompt and meticulous. I will be a repeat customer of theirs and the contrast in professionalism and customer care is like night and day with The Gas Connection. I am sure that they would have cancelled on me the 3rd time and I am glad that I don't have to deal with Sherri ever again.

    I have had great experience with the Gas Connection. The customer service has been excellent, from…read moremaking appointments by phone to having my service technician, Tom, do his scheduled maintenance on our gas fireplace. Tom explains everything that he is doing in an easy to understand manner. The prices are very reasonable & I have referred TGC to all of my friends.

    Apex Underground - plumbing - Updated May 2026

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