Your Neighborhood Plumber — Honest, Reliable, Every Time.
Leaking pipe? Clogged drain? Water heater on the fritz? Southside Plumbing sends master plumbers — not apprentices — and we tell you the price before we start. No surprises.
Upfront pricing — you approve the cost first
5 master plumbers — the highest level of training
Family-owned since 2005 — your neighbors, not a franchise

YOUR NEIGHBORS – NOT A FRANCHISE
We Understand — You Just Want It Fixed, Without the Runaround
When Mark and Liz Friesen started Southside Plumbing in 2005, they made one promise: treat every homeowner the way they’d want to be treated. Tell people what’s wrong, tell them what it costs, and do excellent work. Twenty years later, 865+ five-star reviews say they kept that promise.
Our team of 5 master plumbers and a journeyman live right here in the South Denver metro. We’re not dispatching strangers from across town — we’re the folks you see at the grocery store.

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.




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.













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!