Residential Pools | Commercial Pools | Pool Renovations | Custom Construction


Pool Service, Renovation & Custom Pool Construction in Maryland · Since 1980
Beautiful Pools. Flawless Care.
Trusted For Decades.
Residential Pool Maintenance
Commercial Pool Service
Pool Renovations
Custom Pool Construction
For more than 45 years, Lothorian has helped Maryland homeowners and commercial property owners enjoy exceptional swimming pools with confidence.
OUR PHILOSOPHY
Building a pool is a project. Caring for it is a relationship.
Whether you're maintaining the backyard your family loves, managing a commercial aquatic facility, restoring an aging pool, or creating something entirely new… our experienced team is committed to every stage of pool ownership.
WHAT WE DO
Complete Pool Care
Whether we're caring for a neighborhood pool every week or designing a custom backyard from the ground up, every service reflects the same commitment to craftsmanship, professionalism, and long-term support.
Residential Pool Maintenance
Your pool should be ready whenever you are.
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From weekly maintenance and water chemistry balancing to seasonal openings, closings, equipment upgrades, repairs, and troubleshooting, our maintenance team helps protect your investment while giving you more time to simply enjoy it.
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Learn More About Residential Maintenance âž”
Pool Renovations
Your pool may have more life in it than you think.
From resurfacing, tile, and coping to decking, equipment upgrades, structural repairs, and complete transformations, Lothorian helps homeowners reimagine aging pools while preserving what is still worth keeping.
Discover Pool Renovation âž”
Commercial Pool Service
Reliable commercial pool management requires more than routine service.
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Lothorian partners with community associations, apartment communities, country clubs, municipalities, and commercial facilities to provide dependable maintenance, certified expertise, regulatory compliance, repairs, and seasonal support that keeps aquatic facilities operating safely and professionally.
Explore Commercial Services âž”
Custom Pool Construction
A great pool should feel like it belongs to your property.
Lothorian designs and builds custom gunite pools and complete outdoor environments around your home, your property, and the way you want to live, with thoughtful planning and craftsmanship built to last.
Learn About Custom Pool Construction âž”

THE LOTHORIAN DIFFERENCE
What Happens After Opening Day?
The ribbon gets cut for the season. The water is crystal clear.
Family and friends gather. Summer begins.
For many pool companies, that's the finish line. For Lothorian, it's the beginning.
Built to Last. Supported for Life.
Our team continues helping clients long after construction through maintenance, equipment upgrades, seasonal service, renovations, repairs, and ongoing support.
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That's why so many of our client relationships last for years, sometimes decades.
Why Maryland Continues Choosing Lothorian
Trusted Relationships
Many of our clients have trusted Lothorian for years because our commitment doesn't end when construction does. It continues week after week, season after season.
Experienced Professionals
Every member of our team is committed to continuous learning, clear communication, and doing the job the right way.
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Complete Expertise
Maintenance. Commercial Operations. Renovation. Construction. One experienced team. One trusted relationship.
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Responsive Support
Questions answered. Problems solved. Experienced professionals who remain available whenever you need us.
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45 Years Changes Things
Experience isn't simply about how long you've been in business.
It's about what you've learned along the way.
After four decades, we’ve developed an understanding that can't be rushed.
We’ve learned
✓ Which materials stand the test of time.
✓ Which equipment consistently performs.
✓ How to recognize small issues before they become expensive repairs.​
We believe that exceptional service (not exceptional salesmanship) is what keeps clients coming back year after year.
That philosophy guides every recommendation we make.
Why Lothorian
We answer the phone
We explain your equipment
We answer your questions
We'll do all we can to solve a maintenance issue
We give you confidence that your pool is taken care of
Meet The People Behind The Pools
One of the most common themes throughout our customer reviews isn't our pools. It's our people.
Customers regularly remember our team members by name because lasting relationships have always been central to how we do business.
Behind every service truck, construction project, renovation, and maintenance visit is a group of professionals committed to craftsmanship, accountability, and helping clients enjoy their pools with confidence.

Robert Hayes
Founder & Master Craftsman
Forty years ago, Robert built his first pool by hand. Today, his standards of excellence define every project Lothorian undertakes.
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James Carter
Lead Service Technician
With fifteen years in the field, James brings precision and preventative expertise to every pool under our care.
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Emily Rosenberg
Lead Service Technician
With fifteen years in the field, James brings precision and preventative expertise to every pool under our care.
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Sarah Mitchell
Director of Operations
Sarah ensures every maintenance visit, renovation, and commercial contract meets the standard our clients have trusted for decades.
Our Process
01
Discover
We listen first.
Understanding your goals allows us to recommend the right solution—not simply the most expensive one.
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Plan
Whether maintenance, renovation, or construction, thoughtful planning creates better long-term results.
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Deliver
Experienced professionals complete every project with precision, communication, and attention to detail.
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Support
The relationship continues long after the work is complete through ongoing maintenance, service, and expert guidance.

Pool Ownership Resources
Owning a swimming pool shouldn't require guessing.
That's why we're building Maryland's most comprehensive online resource for residential and commercial pool owners.
Explore expert guidance on:
✓Weekly Pool Maintenance
✓ Commercial Pool Operations & CPO Standards
✓ Water Chemistry & Troubleshooting
✓ Equipment Upgrades & Energy Efficiency
✓ Pool Renovation Planning
✓ Plaster, Tile & Coping Lifecycles
✓ Seasonal Openings & Winterization
✓ Outdoor Living Inspiration
Whether you become a client tomorrow or simply learn something valuable today, we're happy to help.
Visit The Learning Center
Proudly Serving Maryland
For more than four decades, Lothorian has proudly served homeowners and commercial clients throughout Central Maryland and surrounding communities.
Our primary service area includes:​
✓ Baltimore City
✓ Baltimore County
✓ Harford County
✓ Carroll County
✓ Anne Arundel County
✓ Southern Pennsylvania
Frequently Asked Questions
01
What is included in your weekly residential pool maintenance plans?
Our weekly maintenance plans typically include water testing and chemical balancing, skimming and vacuuming, filter cleaning, equipment inspection, and minor adjustments. Each plan is tailored to your pool’s specific needs.
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Do you provide Certified Pool Operator (CPO) services for commercial facilities?
Yes. We provide CPO-certified service for commercial pools, including community associations, apartment communities, country clubs, municipalities, and commercial facilities. Our team ensures regulatory compliance and proper water chemistry.
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Can you replace tile, coping, plaster, and pool equipment?
Yes. We handle all aspects of pool renovation including tile replacement, coping repair or replacement, plaster resurfacing, and equipment upgrades or replacements.
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Do you maintain pools that Lothorian didn't build?
Absolutely. We maintain pools built by any contractor. Our experienced technicians are trained to service all pool types, equipment brands, and configurations.
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How long does a typical pool renovation take?
Timeline varies based on scope, but most renovations take between two and six weeks. We provide a detailed timeline during the planning phase and keep you informed throughout the process.
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Do you offer winter maintenance or off-season inspections?
Yes. We provide winterization services in the fall and off-season inspections to ensure your pool and equipment remain in optimal condition during the colder months.
Frequently Asked Questions

GET IN TOUCH WITH US
Let's Build A Relationship That Lasts
Whether you're searching for dependable weekly maintenance, trusted commercial pool management, expert renovations, or a custom pool designed for generations of enjoyment, we'd love the opportunity to earn your trust.
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