Your Trusted Plumber in Highlands Ranch, CO

Where it all started. Southside Plumbing was born in Highlands Ranch and has been your neighborhood’s trusted plumbing team for two decades — from Backcountry to Town Center and everywhere in between.

YOUR NEIGHBORHOOD PLUMBER

Highlands Ranch Is Where Our Story Began

Southside Plumbing was founded right here in Highlands Ranch in 2005 by Mark Friesen, a master plumber, and his wife Liz. What began as a home-based business has grown into the South Denver metro’s most trusted residential plumbing team — but Highlands Ranch has always been home.

Our expert team includes four master plumbers and a journeyman plumber, supported by apprentices enrolled in our rigorous four-year training program that includes evening classes on code and essential trade skills. We don’t just send inexperienced plumbers to your door — every technician who arrives at your Highlands Ranch home is thoroughly trained and ready to solve the problem right.

850+ Google Reviews

Serving South Metro Denver

Family Operated

Insured

WHAT WE DO

Full-Service Residential Plumbing

From a dripping faucet to a complete plumbing remodel, our master plumbers handle every job with the same level of care and precision.

Plumbing Repair & Maintenance

Fast, effective solutions for leaks, fixture failures, and plumbing issues in your Sterling Ranch home — including addressing common new-construction settling problems.

Drain Clearing

Persistent blockages in kitchen sinks, bathtubs, and main lines cleared with state-of-the-art equipment. New construction debris can sometimes cause unexpected clogs.

Water Heaters

Upgrade from builder-grade water heaters to premium tank or tankless systems sized for your household. We also handle repairs and annual maintenance.

Plumbing Remodeling

Upgrading a Sterling Ranch bathroom or kitchen beyond the builder’s spec? We handle all the plumbing — rerouting lines, installing premium fixtures, and code compliance.

Water Filtration & Softeners

Colorado’s hard water is tough on new plumbing and appliances. A whole-house water softener or filtration system protects your investment from day one.

Gas Line Services

Adding a gas fireplace, fire pit, outdoor grill, or gas range? Our certified technicians install and repair gas lines safely and to code.

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4.9
Based on 875 reviews
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lanie D. profile picture
lanie D.
18:12 22 Mar 26
Mike quickly got to the problem and started work. He explained ever thoroughly and was fair and honest when discussing choices and costs. We will definitely be requesting Mime's services in the future.
Robert B. profile picture
Robert B.
15:23 22 Mar 26
Excellent work. Prompt and reliable
Marsha S. profile picture
Marsha S.
19:49 19 Mar 26
I highly recommend Southside Plumbing. They are so professional and experts at what they do. Trevor was amazing to work with and fixed many plumbing issues that we had. His attention to every detail was amazing. I am so glad I found them and I will use them again in the future.
Brian W. profile picture
Brian W.
18:41 19 Mar 26
UPDATE 3/26: I needed the hose bibs (faucets) on the outside of my house replaced. Called Southside again and they were out in 2 days…Kyle and Adam had both bibs replaced and working again in less than 2 hours for a fair price. I will continue using Southside for all my plumbing issues!

I've needed Southside three times in the past two years...for a new water heater (they had the best price), a new shut off valve for my sprinklers, and most recently to fix a phantom noise in one of my toilets. After nearly three hours of troubleshooting, Kyle was able to find a small plastic/ceramic thing was stuck in the water line and remove it. Problem solved. Would use these guys again in a heartbeat.
Jim F. profile picture
Jim F.
23:22 16 Mar 26
They provided outstanding service, professional and friendly.
Gregory D. profile picture
Gregory D.
21:09 16 Mar 26
Trevor and Zach were so friendly, patient and transparent about everything they did to help us with our gas leak situation. Safety was their priority and we appreciate them going the extra mile, even returning to our house when Xcel showed up and had questions about what was done. Thank you so much guys!
John R. profile picture
John R.
17:48 10 Mar 26
Adam and Kyle were great! They worked to identify the problem, gave a clear estimate at a reasonable price, and completed the work expertly. Southside was also easy and professional to deal with. Highly recommend this company in the Denver metro area!
Jake L. profile picture
Jake L.
23:39 09 Mar 26
Michael, Gabriel and Micha did a great job. We’re able to diagnose the problem quickly and get it taken care of. Communicated well throughout the entire process. Was glad to have the option to have them come on a weekend, even though I didn’t use that option. Were able to come the next business day, which is very much appreciated.
Josh F. profile picture
Josh F.
20:12 27 Feb 26
Mark was great! Easy to set up the appointment, Mark arrived in the window I was given and took care of everything in my concern. I will use Southside in the future!
Steve I. profile picture
Steve I.
21:27 25 Feb 26
Chris and Southside went above and beyond to source the necessary piece for repair and then ensured the job was done quickly and fully.
Michelle T. profile picture
Michelle T.
14:05 24 Feb 26
The Southside team was great. We discovered a leak under our kitchen sink leading to the dishwasher and Southside was able to fit us in same day. Trevor was great. After having some issues in the past with, less than qualified, techs we’d just find online…I would recommend the Southside team if you want it fixed right.
David W. profile picture
David W.
02:33 10 Feb 26
Trevor and Gabriel were very quick in answering our request on having our toilets. After examining all three of them, we were advised that they could be repaired but replacement was the better option . After Trevor patiently answered all our questions, we agreed and Heather called us later to make our appointment. Trevor and Adam came out on time and were very professional in their demeanors and finished the installations very effectively. There was no mess left and they carted off the old toilets. We are very happy with the work they performed. And we especially like the soft close lids and seats. We would highly recommend Southside Plumbing.
Charley H. profile picture
Charley H.
22:58 06 Feb 26
Mike was right on time for our service call. Very thorough and efficient. Kept a clean and organized work area. Kept us informed as he worked to solve our somewhat complicated plumbing problem. He was friendly and respectful in all of our conversations. We will definitely request Mike if we have any future plumbing problems.
Walt J. profile picture
Walt J.
20:36 24 Jan 26
We have used Southside Plumbing in the past with very good results. This experience was just as good if not better. We had a toilet replaced. Chris was very knowledgeable, honest, professional and efficient. He informed us of the different options and did a great job installing the toilet. We felt like we were in very good hands and would definitely use Chris and Southside Plumbing for future repairs and projects.
Tricia S. profile picture
Tricia S.
00:11 22 Jan 26
Southside plumbing has over the years proven to be the most reliable, professional experts who treated us with incredible care. Trevor, Adam, and Gabriel were absolutely fantastic. They brought our stress level down and our confidence level up. So grateful for this company. Heather took fantastic care and got us scheduled in minutes. From beginning to end this experience was seamless and felt like family!! Thank you
Mike C profile picture
Mike C
22:54 19 Jan 26
Really professional, Mike was awesome. He did a great job. He gave me his honest opinion of what he thought the problem was and he was bag on. They also offered us a 20$ off promotion discount if we donated food for the food bank. Clever marketing and it’s always nice to work with a company that wants to give back to the community. Will def be using them again next time we need plumbing services.
Mark H. profile picture
Mark H.
17:43 28 Dec 25
I had a great experience with Southside Plumbing! It began with Mark assessing my failing tank water heater and providing me options to prolong its life and options for replacement.
My wife and I decided on moving forward with a new Navien tankless water heater and a Halo whole house water filtration system.
Mark, Adam, Trevor, and Isaiah performed with excellence to remove the old tank and install the new systems all within a day.
We have been enjoying the improved water quality and endless hot water with the new systems.
I highly recommend trusting Southside Plumbing with all of your plumbing needs!

Ready to Schedule Service in Highlands Ranch?

Schedule with Southside Plumbing today.

FAQs for Highlands Ranch Homeowners

A clogged vent pipe or drain line is typically the cause of gurgling pipes. Obstructions prevent air or water from flowing freely, and you may hear gurgling from trapped air or gas bubbles. Depending on where the sound originates, the problem could be isolated to one fixture or affect your entire system. Our team can diagnose the source and clear it quickly.

A good rule of thumb is the 50% rule: if the repair cost exceeds 50% of a new water heater’s price, replacement is the better investment. You should also consider how often you’ve needed repairs and the age of your unit. Our plumbers will give you an honest assessment and help you weigh both options.

Yes. We understand that plumbing emergencies can’t wait. Our team offers same-day service for urgent repairs throughout Highlands Ranch. Give us a call at 720-773-9336 and we’ll get a plumber to your home as quickly as possible.

Common signs include unexplained increases in your water bill, the sound of running water when nothing is on, damp spots on walls or ceilings, musty odors, or warm spots on floors. Our leak detection team uses advanced equipment to pinpoint leaks behind walls, under floors, and in your yard with minimal disruption.

It means we tell you exactly what the job will cost before we start any work. No hidden fees, no surprises on your bill. We also offer financing options for larger projects so you can take care of your home without financial stress.