24/7
Emergency Services Available
488+
4.9 Rated Google Reviews
A+
BBB Rating
100%
Customer Satisfaction
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(301) 304-7429
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4.9 from 488+ reviews
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$0 Diagnostic fee with Repair
24/7 Emergency services
Licensed and insured
$0 Diagnostic fee with Repair
Get your FREE quote in 5 minutes
Flexible financing available
Customer REviews
488+ Positive Reviews
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Amazing service! Mr. Thomson is an exemplary and highly skilled plumber. Very kind as well. He fixed our issue same service day via a late night emergency call. We are grateful for him and the Warner company! Warner is the best! Highly recommend!
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We had our AC break in the middle of a hot week. Warner was able to get out same day and took care of our issues. Germain, our service tech, was great to work with and let me know what was happening as he figured out the issues. Would absolutely work with Warner again - highly recommend!
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Chuck our service provider is very knowledgeable and thorough on each one of our service visits. We have 4 HVAC Units all of which he maintains & services twice annually. We couldn't be more pleased with each one of his visits to our property in downtown Frederick.
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Helpful team who takes the time to not only get the job done and done well, but tries to save you money in the process. They are always happy to answer questions and are patient and understanding. Great overall customer service.
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Limited-Time Promotions
Save up to $4,950 on Qualifying HVAC Installations
Big savings start with a new system. Upgrade to a qualifying HVAC installation and you could save up to $4,950 instantly. That’s major comfort for less — all while boosting your home’s efficiency and lowering energy costs.
Terms and conditions apply. Call for details.
Terms and conditions apply. Call for details.
ABOUT US
Since 1937, the Warner name has been synonymous with value, quality, dependability, and integrity. Our unwavering commitment to customer satisfaction remains at the core of our values, and we strive every day to ensure that the needs of our customers and clients are our first priority.
We proudly offer high-quality products backed by experienced technicians, and understand that honesty and integrity in our business dealings are what will keep us around for another 80+ years.
Trusted Since 1937
Customer-First Commitment
Honesty & Expertise
Generations of Trust
Quality Service
Future-Focused
Our SERVICES
Air Conditioning
We provide fast, dependable air conditioning repair to keep your home cool, comfortable, and running efficiently all summer long.
Heating Installation
We offer expert heating installation to ensure your home stays warm when it matters most. Count on our team for reliable, high-efficiency systems.
Furnace Install
Our technicians install high-performance furnaces designed for long-lasting comfort and energy savings. We make the process quick and stress-free.
Mini Split Install
We specialize in clean, precise mini split installations—perfect for customizing comfort in any space with top-tier performance and quiet operation.
Tankless Water Heater
Our tankless water heater solutions provide flexible, energy-efficient heating without the need for traditional piping —ideal for any retrofit or upgrade.
Plumbing Services
We deliver complete plumbing services with top-quality systems and professional service that ensures total functionality year-round.
Air Conditioning
We provide fast, dependable air conditioning repair to keep your home cool, comfortable, and running efficiently all summer long.
Heating Installation
We offer expert heating installation to ensure your home stays warm when it matters most. Count on our team for reliable, high-efficiency systems.
Furnace Install
Our technicians install high-performance furnaces designed for long-lasting comfort and energy savings. We make the process quick and stress-free.
Mini Split Install
We specialize in clean, precise mini split installations—perfect for customizing comfort in any space with top-tier performance and quiet operation.
Tankless Water Heater
Our tankless water heater solutions provide flexible, energy-efficient heating without the need for traditional piping —ideal for any retrofit or upgrade.
Plumbing Services
We deliver complete plumbing services with top-quality systems and professional service that ensures total functionality year-round.
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Areas We Serve
Areas We Serve
Carroll County
Fredrick County
Montgomery County
Washington County
Our commitment to honesty and dependability remains the foundation of our business, ensuring comfort and trust for generations to come.
