Plumbing Services Across Pinellas County
Serving You 24/7, 365 Days of the Year

Contact McGill Plumbing
& Water Treatment, Inc. Today
Residential, Commercial, and Industrial Plumbing Services in Largo, FL
Whether you're dealing with a leaking pipe, a clogged drain, a failing water heater, or planning a complete plumbing remodel, McGill Plumbing is here to help. Since 1968, we've provided reliable residential, commercial, and industrial plumbing services throughout Largo and Pinellas County, FL, earning a reputation for honest recommendations, dependable workmanship, and fair, upfront pricing.
As a fourth-generation family-owned plumbing company, we believe great service starts with treating customers the right way. That means answering the phone when you call, arriving when we say we will, and completing the work without unnecessary upselling or hidden costs. From everyday plumbing repairs to large-scale installations, our licensed plumbers are committed to delivering solutions that last. No matter the size of the job, McGill Plumbing is your total service plumber.
Plumbing Services Available Across Pinellas County, FL
From routine maintenance to complex plumbing projects, McGill Plumbing offers comprehensive plumbing services designed to keep your system operating safely and efficiently.

Even small plumbing problems can become costly if they're ignored. Whether you have a dripping faucet, low water pressure, or a hidden leak, our plumbers identify the source of the issue and recommend the most effective repair.
Our plumbing repair services include:
Pipe repair and whole-home repiping
Leak detection and slab leak repair
Water pressure troubleshooting
Faucet, sink, and toilet repair
Preventative plumbing maintenance
Regular maintenance can help identify worn components before they fail, extending the life of your plumbing system while helping you avoid unexpected repairs.

Hot water is something you rely on every day, and when your water heater stops working, you need a fast solution.
McGill Plumbing provides:
Water heater replacement
Tank water heater installation
We proudly install commercial-grade State ProLine® water heaters, along with premium tankless systems from Noritz, Rinnai, and Stiebel Eltron, helping homeowners choose the right solution for their household and budget.

Slow drains, recurring clogs, and sewer backups often indicate a larger problem in your plumbing system.
Our drain and sewer services include:
Drain installation and replacement
Whether you're dealing with years of grease buildup or tree root intrusion, we'll recommend the right solution to restore proper drainage while protecting your plumbing.

Hard water is a common issue throughout Pinellas County, affecting everything from your plumbing fixtures to your water heater. We install water treatment systems designed to improve water quality and protect your plumbing, including:
Whole-home water treatment solutions
Our systems help reduce mineral buildup, extend the lifespan of plumbing fixtures and appliances, and improve water quality throughout your home.

Protecting your drinking water is an important part of maintaining a safe plumbing system. McGill Plumbing provides certified backflow prevention services, including:
Backflow preventer installation
Annual backflow testing
Backflow repairs
Compliance documentation
We'll ensure your property meets local municipal requirements while helping protect your home's potable water supply.

A broken garbage disposal can quickly disrupt your kitchen routine. Whether your disposal is jammed, leaking, making unusual noises, or has stopped working altogether, our plumbers provide dependable disposal repair and replacement services. We install and service trusted InSinkErator® garbage disposals to keep your kitchen running smoothly.

Burst pipes, sewage backups, and sudden water heater failures don't wait for business hours. We're available 24 hours a day, 365 days a year for emergencies and offer same-day scheduling for non-emergency calls. Our emergency plumbing page covers what to do and what to expect when you call.
The McGill Plumbing Promise
Choosing a plumber isn't just about finding someone who can fix the problem—it's about finding a company you can trust.
For more than 55 years, McGill Plumbing has served homeowners and businesses throughout Pinellas County with honest service and quality workmanship. Today, fourth-generation plumber Shane Wood continues that tradition by focusing on straightforward recommendations, reliable repairs, and exceptional customer service.
Here's what sets us apart:
Family-owned and operated since 1968
Licensed, bonded, and insured plumbers
Residential, commercial, and industrial plumbing services
Same-day scheduling whenever possible
24/7 emergency plumbing availability
Upfront pricing before work begins
100% satisfaction guarantee
90-day warranty on repairs
One-year labor warranty on new plumbing installations
A+ Better Business Bureau rating
No subcontractors—every plumber is a McGill employee
When you hire McGill Plumbing, you're working with a local company that's built lasting relationships throughout the communities we serve.
Visit Our Largo Showroom
Need replacement parts? Looking for new plumbing fixtures? Want advice before scheduling service? Visit our showroom and parts counter at 111 Missouri Avenue N in Largo, where you can browse products from trusted manufacturers like American Standard, Delta, Kohler, Moen, Elkay, Gerber, and Toto while speaking directly with experienced plumbing professionals.
Whether you're tackling a small repair yourself or planning a larger remodeling project, we're happy to answer questions and help you find the right products. Visit our showroom page for hours and details.
Common Questions About Plumbing in Pinellas County
To prevent plumbing issues, consider scheduling regular maintenance checks, avoid flushing non-flushable items down the toilet, and be mindful of what goes down your drains to prevent clogs. Understanding common local issues such as mineral build-up due to hard water can also help you mitigate potential problems before they become costly repairs.
In case of a plumbing emergency, such as a burst pipe or sewage backup, it is important to turn off the main water supply to prevent further damage and then contact our plumber immediately. Knowing where your main water shutoff valve is located is essential, particularly in areas prone to seasonal storms that can affect water infrastructure.
While minor plumbing issues can sometimes be fixed with DIY solutions, it is generally recommended to hire our plumbers for more complex problems to ensure the job is done correctly and to avoid causing further damage. This is particularly important in Florida, where unique humidity and temperature conditions can complicate DIY repairs.
Some common signs of a plumbing issue include low water pressure, slow draining sinks, unusual sounds coming from pipes, foul odors, water stains on walls or ceilings, and an increase in your water bill without explanation. Recognizing these signs early, especially in older homes common in Largo, can save significantly on potentially extensive repairs.
Planning a plumbing remodel requires careful consideration of both current needs and future usability. Assessing the capacity of existing systems, understanding local regulations, and selecting materials that provide durability are critical steps. McGill Plumbing & Water Treatment, Inc. provides thorough consultations tailored to your specific goals, ensuring improvements not only boost functionality but also comply with Largo's evolving code requirements. By choosing our services, you're assured a seamless remodel experience that balances aesthetic upgrades with essential performance improvements.
Enhancing your home's plumbing efficiency goes beyond using water-saving fixtures. It involves optimizing the entire system to reduce waste and improve flow. Regular maintenance checks by McGill Plumbing & Water Treatment, Inc. can identify worn components and recommend upgrades that improve efficiency. Transitioning to smart technologies like programmable showers and sensors can also streamline water usage effectively. Additionally, our community's focus on green initiatives supports homeowners willing to invest in eco-friendly solutions, ensuring that your home is both efficient and environmentally conscious.
We're available 24 hours a day, 365 days a year for emergencies. When you call, you reach someone who can dispatch a plumber immediately, not a voicemail. For non-emergency situations, we offer same-day scheduling.
Many plumbing jobs in Largo require permits, and repipes and sewer replacements typically do. We handle the permitting process as part of the job. These larger projects also qualify for free estimates, so you know the full scope and cost before we start.
Discolored water, low pressure unrelated to municipal supply issues, pinhole leaks, and visible corrosion are all warning signs. Homes built before the 1980s may have pipe materials that have reached the end of their lifespan. Our team can assess whether repair or full repiping makes sense for your situation.
Older drain lines narrow over time as mineral deposits accumulate on the pipe walls, leading to frequent clogs that resist standard fixes. Store-bought chemical cleaners temporarily clear clogs but don't address underlying buildup. Professional drain cleaning reaches the actual cause and leaves the lines properly clear.
For many homeowners, a tankless water heater delivers efficiency gains and eliminates standby energy loss. One consideration is water hardness: mineral scale builds up faster in tankless units, making proper installation and maintenance important. See our tankless water heater page for options and what to plan for.
Our 100% satisfaction guarantee means we stand behind our work. New installations are backed by a one-year parts-and-labor warranty, and repair work by a 90-day warranty. When manufacturer warranties apply, those cover equipment according to the manufacturer's terms. If something isn't right, we'll make it right.
Yes. Our showroom staff answers questions about parts, repairs, and fixture options without obligation to book service. Stop in at 111 Missouri Avenue N to talk to someone who knows the trade.
Contact McGill Plumbing for Service Across Pinellas County
When you need plumbing services in Pinellas County, call the team that's served this community since 1968. We offer same-day scheduling for non-emergency calls and 24/7 availability for emergencies. Whether you need repair, planning replacement, or honest advice about your plumbing system, we're here. Call us or reach out online to schedule service in the Largo area or across Pinellas County.
YOU DESERVE THE BEST Our Promise to You
Available 24/7, 365 Days of the Year
Provide Only the Services You Need
Trained and Qualified Technicians
Over 75+ Years of Experience
Family Owned and Operated
Our Reputation is Second to None
Hear From Our Happy Customers
McGill Plumbing and Water Treatment is a business with 3 generations of satisfied customers. Cody and Johnny were professional, knowledgeable and friendly. Highly recommend for any plumbing issues you may have.
I've been using McGill for nearly 20 years. It started with a stupid mistake that broke an outdoor faucet on a weekend and McGill was out quickly to fix the problem. Over the years they have replaced toilets and fixed other plumbing leaks, and are responsive. There's a reason they have been around so long! And Tonya is always great to work with, as well as the other employees I have encountered.
I am extremely happy with McGill Plumbing. They moved my plumbing from the floor to the attic. Jake and Bobby were professional, friendly, explained what they were doing, and very easy to work with. Kudos to McGill Plumbing. Reasonable price. Everything was upfront. No surprises. I would highly recommend.
Just an incredibly professional job installing my hot water heater by Mark. Old piping was a mess and he cleaned it all up with sweated(soldered) copper pipes! Same price or cheaper than the competition and they don’t solder copper. Can’t be happier.
I called McGill plumbing to fix a plumbing issue I was having. They scheduled someone to come to my house within 30 minutes. Chris from McGill addressed the problem and fixed it for me. He was very professional and kind.. I will continue to use McGill if I have anymore problems in the future.



Our Location

Mon – Fri: 8:30 AM - 4:30 PM
Sat-Sun: Showroom Closed
Service Available 24/7

