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COMMERCIAL PLUMBING AND HVAC CONTRACTOR
SERVICES IN SOUTHERN UTAHWhether you need regular maintenance or performance upgrades or are looking to construct a new building, Marlin Plumbing Heating and Air Conditioning is your go-to commercial & industrial plumbing and HVAC contractor in St. George, Utah
- All-in-one repair and maintenance services
- Guaranteed customer satisfaction
- 24/7 availability in customer service support
At Marlin Plumbing Heating and Air Conditioning, we are proud to be the trusted choice for commercial plumbing, HVAC, and water treatment services in St. George, Utah. With a proven track record of excellence, we provide reliable, high-performance solutions tailored to the unique needs of local businesses.
From new construction and system upgrades to emergency repairs and routine maintenance, our experienced, licensed technicians are equipped to handle every aspect of your commercial systems. We specialize in heating and cooling installations, water heater replacement, backflow prevention, and now offer advanced commercial water treatment services to ensure your building’s water is clean, safe, and efficient.
Why businesses trust Marlin:
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Comprehensive plumbing, HVAC, and water treatment expertise
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Fast, professional service with minimal disruption
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Transparent pricing and honest communication
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Fully licensed, insured, and committed to safety and quality
Partner with Marlin Plumbing Heating and Air Conditioning for all your St. George commercial plumbing, HVAC, and water treatment needs. We’re here to keep your business running smoothly—every day, all year.
Call today to schedule a consultation or emergency service!

When it comes to running a business, every minute counts—and unexpected issues with plumbing, heating, cooling, or water quality can quickly disrupt operations and impact your bottom line. That’s why business owners across St. George trust the licensed professionals at Marlin Plumbing Heating and Air Conditioning to keep their systems running efficiently, safely, and up to code.
DIY fixes or hiring unqualified contractors can lead to bigger problems down the line—from compliance violations to costly breakdowns. With Marlin, you get peace of mind knowing your commercial plumbing, HVAC, and water treatment systems are handled by experienced, certified technicians who understand the demands of commercial environments.
Why hiring a professional matters:
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Accurate diagnosis and long-term solutions
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Code-compliant repairs and installations
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Reduced downtime and emergency risks
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Extended system life and improved energy efficiency
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Customized maintenance plans for commercial systems
Whether you’re dealing with inconsistent temperatures, low water pressure, or water quality concerns, our team is equipped with the latest tools and industry expertise to fix it right—the first time.
Protect your business with trusted service—call Marlin Plumbing Heating and Air Conditioning today for expert commercial support in St. George.
When it comes to your commercial property, you need more than just a contractor—you need a partner you can trust. That’s why business owners throughout St. George turn to Marlin Plumbing Heating and Air Conditioning. Our company is built on a foundation of honesty, dependability, and exceptional craftsmanship, and we take pride in delivering long-lasting results you can count on.
With decades of experience and a portfolio of satisfied clients, we’ve earned a reputation for high-quality commercial plumbing, HVAC, and water treatment services. From office buildings and retail centers to industrial spaces and restaurants, Marlin is known for doing the job right the first time—on time and on budget.
Why choose Marlin?
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Honest assessments and transparent pricing—no surprises
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Proven track record of reliable service in St. George
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High standards of workmanship with attention to detail
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Fully licensed, insured, and committed to code compliance
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Responsive, respectful technicians who prioritize your business
We know your time is valuable and your systems are essential to day-to-day operations. That’s why we work hard to deliver fast, efficient service without cutting corners.
Join the growing number of St. George businesses that trust Marlin Plumbing Heating and Air Conditioning for professional, high-quality service they can rely on.
Get in touch today to schedule your commercial service or consultation.

Commercial plumbing and HVAC services are uniquely complex and require a higher level of expertise compared to residential systems. These systems must support large-scale operations, meet strict code requirements, and operate efficiently under constant demand. Choosing a qualified provider ensures long-term performance and minimizes costly disruptions.
Here’s what sets commercial systems apart:
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Larger system capacity to handle higher occupancy and usage
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Stricter building codes and compliance standards
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Specialized equipment and components designed for commercial-grade performance
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Custom system design and installation tailored to each building’s layout and function
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Routine maintenance plans that prevent downtime and costly emergency repairs
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Energy efficiency standards that impact long-term operational costs
With Marlin Plumbing Heating and Air Conditioning, you get a team that understands the demands of commercial environments and delivers reliable, high-quality results every time.

Commercial water heater systems are critical to the daily operations of many businesses—especially those in hospitality, healthcare, food service, and manufacturing. Unlike residential units, commercial water heaters must handle significantly higher demand, operate continuously, and comply with local safety codes. Whether you need a quick repair or a full system replacement, it’s essential to work with a contractor experienced in commercial-grade equipment and installation standards.
Key aspects of commercial water heater services include:
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High-capacity units designed for continuous hot water delivery
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Fast, expert diagnosis to reduce downtime and restore service quickly
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Proper sizing and installation to match your facility’s unique hot water needs
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Compliance with all local codes, permits, and energy efficiency standards
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Preventative maintenance to extend system lifespan and prevent emergencies
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Access to top-rated commercial models including tankless, storage, and hybrid systems
Trust Marlin Plumbing Heating and Air Conditioning for dependable commercial water heater repair and installation in St. George—we keep your hot water flowing so your business can keep moving.
A properly installed and efficient HVAC system is essential for maintaining a comfortable and productive environment in any commercial building. Whether you own a retail store, office space, or large industrial facility, Marlin Plumbing Heating and Air Conditioning specializes in custom HVAC installations tailored to your business’s specific needs. Our expert team ensures that your new HVAC system operates at peak performance, providing consistent comfort for employees and customers while optimizing energy efficiency. With decades of experience, we handle installations of all sizes with precision, using top-quality systems designed to meet or exceed industry standards.
Key benefits of our commercial HVAC installations include:
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Customized system design to meet your business’s unique heating and cooling needs
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High-efficiency systems that lower energy consumption and reduce utility costs
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Expert installation by certified, experienced technicians
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Integration of advanced technologies for improved temperature control and air quality
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Full compliance with building codes, safety standards, and local regulations
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Reliable, long-lasting systems with minimal maintenance requirements
Choose Marlin Plumbing Heating and Air Conditioning for expert commercial HVAC installations in St. George. We provide systems that deliver comfort, efficiency, and value, ensuring your business stays cool in the summer and warm in the winter.
Routine maintenance is crucial for keeping your commercial HVAC system running efficiently and extending its lifespan. At Marlin Plumbing Heating and Air Conditioning, we provide comprehensive maintenance services to ensure that your HVAC system performs at its best year-round. Regular inspections, cleaning, and tune-ups help prevent unexpected breakdowns, reduce energy consumption, and improve indoor air quality. Our team of experienced technicians will proactively address potential issues before they become costly problems, helping to minimize downtime and keep your business comfortable for employees and customers alike.
Key benefits of routine commercial HVAC maintenance include:
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Improved energy efficiency leading to reduced utility costs
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Early detection of potential issues that could lead to expensive repairs or downtime
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Extended system lifespan through regular cleaning and adjustments
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Better indoor air quality by ensuring proper filtration and airflow
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Compliance with manufacturer warranties, which often require regular maintenance
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Increased system reliability, reducing the risk of costly emergencies
Investing in routine commercial HVAC system maintenance with Marlin Plumbing Heating and Air Conditioning ensures your system stays in top condition, providing consistent comfort while protecting your bottom line.
When your commercial HVAC system experiences issues, timely repairs are essential to avoid disruption and costly downtime. At Marlin Plumbing Heating and Air Conditioning, we specialize in diagnosing and repairing a wide range of commercial HVAC problems. From malfunctioning thermostats and clogged air filters to compressor failures and refrigerant leaks, our expert technicians have the knowledge and tools to get your system back to optimal performance. Addressing minor issues early can save your business from expensive repairs or premature system replacements down the line.
Common commercial HVAC repairs we handle include:
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Faulty thermostats causing temperature inconsistencies and inefficient energy use
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Clogged air filters that reduce airflow and strain the system
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Refrigerant leaks that lead to poor cooling and higher energy consumption
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Compressor failures that can halt the entire system’s operation
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Dirty condenser coils impacting system efficiency and performance
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Blower motor issues that cause reduced airflow and system malfunctions
Investing in timely HVAC repairs can extend the life of your system, improve energy efficiency, and reduce long-term costs. Marlin Plumbing Heating and Air Conditioning provides cost-effective repairs that ensure your commercial HVAC system operates smoothly, keeping your business comfortable and your energy bills under control.
Don’t experience downtime with your business operations due to commercial plumbing issues, give Marlin Plumbing Services’ commercial plumbers in Saint George a call today!
We have sold and installed hundreds of water softener systems across hotels, restaurants, casinos, food, and meat processing plants, including the ATT sports arena in San Antonio Texas. And we won’t stop until all commercial buildings and restaurants in Southern Utah are equipped with a proper water filtration system.
Certiflow water treatment systems are the most reliable and longest-lasting equipment in the waterworks world. Through these systems, we are able to utilize the latest innovations in water treatment technology.
Our commercial plumbers near St. George use engineering to ensure an accurate system that fits your property needs.
Seriously, this is plumbing science at its finest!
Marlin Plumbing Services— this name pops up number one on Google search for a reason. Providing certified commercial plumbing, HVAC, and Water Treatment services in Saint George and other regions in Utah; it’s the name you have to search for.
Let’s get those systems working. Call the best industrial plumbing in St. George, UT for free estimates now!
Searching for industrial plumbers in St. George, Utah? Look no further than our selection. We offer a variety of complete systems, perfect for keeping your water clean and safe to drink.
We’ve got water softeners and reverse osmosis systems. Trust us to keep your store’s water flow running smoothly!

A well-functioning commercial bathroom is essential for any business that serves employees, customers, or guests. From retail stores and office buildings to restaurants and healthcare facilities, reliable plumbing is a non-negotiable part of daily operations. Commercial bathroom plumbing systems are more complex than residential ones, often involving higher water usage, ADA compliance, and durable fixtures designed for heavy traffic. Whether you’re dealing with clogs, leaks, fixture upgrades, or full restroom remodels, expert service ensures everything stays up to code and running smoothly.
Key components of commercial bathroom plumbing include:
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High-traffic fixtures such as commercial-grade toilets, urinals, and sinks
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Touchless or sensor-operated faucets and flush valves
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ADA-compliant plumbing design and installations
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Reliable drain, sewer, and venting systems to handle heavy usage
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Quick-response repairs to minimize downtime and maintain sanitation
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Preventive maintenance to reduce future plumbing emergencies
With Marlin Plumbing Heating and Air Conditioning, you get expert commercial bathroom plumbing backed by experience, professionalism, and a reputation for high-quality work throughout St. George.

When it comes to maintaining a clean, functional business environment, efficient drain systems are essential. Commercial drains are subjected to much heavier usage than residential ones, often dealing with large volumes of waste, grease, debris, and other materials that can lead to blockages and slow drainage. From office buildings and restaurants to industrial facilities, regular drain cleaning helps prevent costly backups, unpleasant odors, and plumbing emergencies that could disrupt your operations. Whether it’s routine maintenance or an emergency clog, professional drain cleaning ensures your systems run smoothly and efficiently.
Key aspects of commercial drain cleaning include:
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High-capacity drain systems designed to handle large volumes of water and waste
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Specialized equipment, such as hydro-jetting, to clear tough blockages
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Routine maintenance to prevent clogs and buildup
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Fast, efficient service to minimize downtime and restore proper drainage
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Preventive inspections to catch potential issues before they become major problems
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Safe, eco-friendly solutions to protect your pipes and the environment
Choose Marlin Plumbing Heating and Air Conditioning for reliable, thorough commercial drain cleaning in St. George. We ensure your drains stay clear and your business runs without disruption.
A damaged or clogged sewer line can quickly become a major problem for any business. When sewer lines in commercial properties fail, it can result in unpleasant odors, slow drainage, sewage backups, and even health hazards that disrupt daily operations. Commercial sewer lines are more complex than residential ones and require specialized knowledge and equipment to diagnose and repair effectively. Whether it’s a simple repair or a complete sewer line replacement, professional service ensures minimal downtime and restores functionality quickly and safely.
Key aspects of commercial sewer line repair include:
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Thorough inspections using video camera technology to pinpoint issues
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Expertise in handling complex commercial sewer systems, including older or oversized lines
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Efficient repairs with minimal disruption to business operations
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Complete sewer line replacement for severely damaged pipes
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Preventive maintenance to avoid future costly repairs or emergencies
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Eco-friendly and safe methods to ensure long-term system health
Trust Marlin Plumbing Heating and Air Conditioning for expert commercial sewer line repair in St. George. We provide fast, reliable solutions to keep your business operating smoothly without the headaches of plumbing issues.

Ensuring clean, safe, and efficient water is critical for any commercial operation. From restaurants and hotels to healthcare facilities and manufacturing plants, reliable water treatment systems help protect your business, employees, and customers from contaminants, while also promoting operational efficiency. At Marlin Plumbing Heating and Air Conditioning, we offer advanced commercial water treatment solutions featuring our patented Progressive Flow Technology. This cutting-edge system is designed to handle large water capacities with unparalleled efficiency, providing top-quality water treatment for a fraction of the price of traditional systems.
Key benefits of our commercial water treatment systems include:
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Progressive Flow Technology that optimizes water flow and improves efficiency
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Ability to handle large-scale water treatment needs without the high costs
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Improved water quality, helping reduce scale buildup, rust, and contaminants
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Low-maintenance systems that reduce operational downtime
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Environmentally friendly design with energy-saving capabilities
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Tailored solutions for various industries, from food service to manufacturing
Trust Marlin Plumbing Heating and Air Conditioning for affordable, high-performance water treatment solutions that ensure your business runs smoothly and your water remains pure.
Marlin Plumbing, Heating, and Air Conditioning is one of the best commercial plumbing and commercial HVAC Saint George companies, providing matchless plumbing solutions in St. George, Utah. Get in touch with us and let us help you fix your plumbing issues.

Because no one can understand your unique needs the way we can. Problems with your boiler experience? Turn to a corporation that will ease your worry while you are in Utah. Choose plumbers that know basic and complex problem-solving, can deal with drain cleaner, and are a general contractor who handles any form of damage. All these are what Marlin Plumbing is. We have been in the industry for a long time and have been successfully helping businesses in St. George, Salt Lake City, UT, and Southern Utah with their biggest plumbing problems.
It is the process of identifying and fixing plumbing issues from time to time so that they cannot become bigger issues. The industrial plumbing St. George, UT offers can help address such issues.
Plumbing systems are used more frequently in commercial properties, and the more used it is, the more prone it is to damage. You will then have to face plumbing issues often, and will essentially need a certified and experienced industrial plumbers in St. George, Utah like us to do the job for you.
Like other industrial plumbing companies in St. George, we perform repair and replacement– gas line repair and re-piping, water pipe repair and re-piping, water and gas leak detection, heater and boiler repair or replacement, drain cleaning, and anything industrial plumbing!
Heating, ventilation, air conditioning (HVAC), water pipelines, gas pipelines, and other installations are what plumbers install.
We may charge hourly rates for industrial drain cleaning and industrial sewer repair, for instance, or the price ranges that depend on the type of job, timing, and location. Call us for a quotation!
It depends on the complexity of the issue. A minor drain cleaning may take as little as 5 minutes, while a more severe issue may take an hour or two.
Don’t ignore the issues and call a service provider for a more effective and on-point solution.
Hot water and baking soda can help you keep your vertical drain pipes clean. However, if the issue is more complex, it’s best to hire a service provider for better treatment.
Floor drain, like every other part of plumbing fixtures, need proper and regular cleaning. Set a schedule with us, send your location, and we can send a quotation of the best floor drain cleaners!