DUNCAN PLUMBING LLC
Expert Solutions for Your Plumbing Needs. Serving Central Indiana
WHY CHOOSE US
SKILLED PLUMBERS
Located in Indianapolis, Duncan Plumbing is led by a licensed professional with years of hands-on experience and the support of licensed apprentices in residential and commercial plumbing. From sewer inspections to system upgrades, our commitment to quality workmanship and reliable service sets us apart from the competition.
CLIENT SATISFACTION
At Duncan Plumbing, customer satisfaction is at the core of everything we do. We’re not salesmen—we’re problem solvers who prioritize service over sales. Our pricing is straightforward and affordable, and we focus on giving clients exactly what they need, nothing more. No upsells, no pressure—just honest work done right.
LOCAL & RELIABLE
As a locally owned business, Duncan Plumbing takes pride in serving our community with dependable, on-time service you can count on. We understand the needs of Indianapolis homeowners and contractors because we live and work right here beside you. When you call us, you're getting a neighbor—not a stranger.
ABOUT DUNCAN PLUMBING
"Right out of high school, I needed a job—and my older cousin offered me a spot working with him in commercial plumbing construction. From the first week on the job, I was hooked. Nearly ten years later, that same passion still drives me. Over the years, I’ve made it a mission to get hands-on experience in every part of the trade—residential service, drain cleaning, water treatment, steam systems, industrial piping—you name it. Plumbing isn’t just what I do, it’s what I love" - Isaah Duncan (Owner Operator)
OUR SERVICES
Residential Plumbing Services
Our residential plumbing services cover everything from routine repairs to full system upgrades. Whether it’s fixing a leak, clearing a drain, or improving your water quality, we make sure your home’s plumbing runs smooth and reliable—keeping your space safe, comfortable, and worry-free.
Commercial Plumbing Services
For businesses, we provide comprehensive commercial plumbing solutions tailored to meet the unique demands of each property. From new construction to maintenance and repairs, our expert services help keep your systems running efficiently, so you can stay focused on what matters—your operations.
New Construction
We provide complete plumbing installation for new homes, additions, and commercial projects. From underground rough-ins to final fixture hookups, every step is handled with precision and attention to detail. We work closely with contractors and builders to keep projects on schedule and deliver reliable plumbing systems built to perform for years to come.
Backflow Testing & Certification
Backflow testing is important to keep your water clean and safe. We inspect and test your backflow prevention devices to make sure they’re working right and meet local rules. After testing, we provide certification to confirm everything is up to code. If there’s a problem, we will let you know what needs fixing to protect your home and community.
Remodels
Whether you’re updating a bathroom, kitchen, or full home, we provide expert plumbing remodel services tailored to your project. From relocating fixtures and rerouting piping to installing modern, efficient systems, we ensure everything is done to code and built to last. Our goal is to give you reliable plumbing that complements your remodel and adds long-term value to your home.
Fire Protection & Sprinkler
We install and service fire sprinkler piping with safety, code compliance, and reliability at the forefront. From system rough-ins to valve replacements and upgrades, our work ensures dependable protection for residential and commercial buildings. We coordinate with contractors and inspectors to keep projects moving smoothly and deliver piping that’s built to perform when it matters most.
OUR PROJECTS
CLIENT TESTIMONIALS
Courtney Jackson
I am incredibly satisfied with the service I received today. It was quick and efficient. I was also given instructions on what to do for the next 24 hrs as I had sealant placed on the bottom of my sink.
Kyle Stewart
I would recommend this company to anyone. I had them come out to look at a gas leak at a property I manage, not only did he fix the leak on the inside, he went ahead and addressed an issue on the meter side (gas co. responsibility) just to save us the hassle of having to have them come out. Didn't charge anything extra for doing it either. Went above and beyond
Darla Hoy
Isaah was awesome! I called and the next day they came out to do the work/service. Easy to communicate, knowledgeable and on time! I will defiantly use them again. Highly recommend
FREQUENTLY ASKED QUESTIONS
Do you guarantee your work?
Yes. All of our work is backed by both manufacturer warranties on parts and our own workmanship guarantee. We stand behind what we install so you can have peace of mind knowing your plumbing is built to last.
Do you provide detailed bids and change orders?
Yes. We provide clear, itemized bids up front, and any scope changes are documented with transparent pricing. This keeps budgets accurate and avoids surprises for you or your clients.
Can you work within tight construction schedules?
Absolutely. We coordinate closely with general contractors and other trades to stay on schedule. Clear communication and flexibility are a priority so plumbing never becomes a bottleneck on your project.
