Business Details
50+ Years
experience
Emergency
services
Open 24/7
always available
Your Trusted HVAC & Plumbing Partner Since 1937
Since 1937, Warner Service has been synonymous with value, quality, and integrity in HVAC and plumbing services. As a family-owned business operating for three generations, we prioritize customer satisfaction through honest dealings, experienced technicians, and high-quality products. Our commitment to dependability ensures every client receives reliable solutions tailored to their needs. With 24/7 emergency service, background-checked employees, and free estimates on replacements, we combine decades of expertise with modern technology to deliver lasting comfort. Our dedication to transparency, from upfront pricing to clear communication, reflects our mission to earn trust and maintain leadership in home comfort systems. 
Services
HVAC Repair
AC Installation
Plumbing Services
Water Heater Repair
Boiler Maintenance
Commercial HVAC
Drain Cleaning
Emergency Plumbing
Ductless AC
Maintenance Plans
Details
- Year established: 1937
Highlights and features
- Family-owned for three generations with 85+ years of combined HVAC expertise
- 24/7 emergency service with same-day appointments available
- All technicians undergo rigorous background checks and ongoing training
- Free estimates on all system replacements and installations
- Offering Daikin's 12-year parts warranty on qualifying HVAC systems
Associations and certifications
- Daikin Comfort Promise
- Daikin Comport Pro Distinction
What people say
Prompt emergency response
Professional technicians
Excellent customer service
Knowledgeable staff
Reliable solutions
Services
HVAC Installation
Warner Service specializes in installing energy-efficient HVAC systems tailored to your home's specific needs. Our technicians conduct detailed load calculations to ensure proper sizing and recommend advanced technologies like Daikin's variable-speed systems. With financing options available and a 12-year parts warranty on qualifying units, we make modern comfort accessible. Our installations include duct modifications and smart thermostat integration for optimal performance.
AC Repair
Our certified technicians diagnose and repair all AC makes and models with precision. From refrigerant leaks to compressor failures, we use advanced diagnostic tools and premium replacement parts. Emergency repairs are prioritized with 24/7 availability, and all work includes a satisfaction guarantee. Regular maintenance customers receive priority scheduling for urgent cooling issues during peak summer months.
Plumbing Services
Warner Service provides comprehensive plumbing solutions including leak detection, drain cleaning, and water heater repairs. Our 24/7 emergency team responds promptly to burst pipes and other critical issues. We offer tankless water heater installations and water softening systems, with financing available for major replacements. All plumbing work meets local code requirements and includes detailed post-service explanations.
Boiler Maintenance
Specializing in steam boiler systems, our technicians provide expert maintenance and repairs for both residential and commercial clients. Services include burner efficiency testing, pressure checks, and safety control inspections. We service aging systems and offer modernization options to improve efficiency. Our team's expertise in rare boiler types makes us a trusted resource for complex heating systems.
Ductless AC
We install and service ductless mini-split systems for homes without existing ductwork. Our consultants help select optimal configurations for zoned cooling, with options for single or multi-room coverage. Installations include wall-mounted and ceiling cassette units that blend with interior decor. All ductless systems come with manufacturer warranties and qualify for seasonal rebates when applicable.
Questions
What areas do you service?
We serve Frederick, Hagerstown, Boonsboro, and surrounding areas in Maryland, Virginia, Pennsylvania, and West Virginia.
Do you offer emergency services?
Yes, we provide 24/7 emergency HVAC and plumbing services with technicians available year-round.
What financing options are available?
We offer flexible financing through GreenSky and Optimus for HVAC and plumbing projects of all sizes.
Are your technicians certified?
All technicians undergo background checks and receive ongoing training in HVAC and plumbing technologies.
What warranties do you offer?
We provide Daikin's 12-year parts warranty on qualifying systems and stand behind our work with service guarantees.
How can I schedule service?
Call (301) 304-7429 anytime or use our online booking system for emergency and routine service appointments.
