Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC, Electrical & Plumbing Partner in Maryland
GAC Services, a family-owned and operated business since 1970, has been Maryland's trusted provider of HVAC, electrical, and plumbing solutions for over 50 years. We serve residential and commercial clients across Anne Arundel, Prince George's, Montgomery, Frederick, Howard, and Carroll Counties with a commitment to professional service, customer satisfaction, and fair employee treatment. Our team of factory-trained, nationally certified technicians delivers up-front pricing, 100% satisfaction guarantees, and respect for your property, supported by awards like Best of Montgomery County and the Angie's List Super Service Award. We prioritize energy-efficient solutions, emergency services, and Prime Maintenance Memberships to ensure long-term comfort and reliability for our customers. 
Services
HVAC Services
Electrical Services
Plumbing Services
Indoor Air Quality
Generator Installation
Details
- Year established: 1970
Highlights and features
- We offer 50+ years of local HVAC, electrical, and plumbing expertise.
- Our factory-trained technicians ensure precise, certified service delivery.
- 100% satisfaction guarantee on all installations and repairs.
- Up-front pricing with no hidden fees or surprise charges.
- Serving Maryland communities with emergency and priority maintenance options.
Associations and certifications
- Angie's List Super Service Award
- Best of Montgomery County
What people say
Professional technicians
Prompt emergency service
Fair pricing
Thorough explanations
Long-term satisfaction
Services
HVAC Installation
GAC Services specializes in HVAC installation for Maryland homes and businesses. Our NATE-certified technicians assess your space's size, insulation, and climate needs to recommend energy-efficient systems. We install central air, ductless units, furnaces, and heat pumps with precision, ensuring optimal performance and energy savings. Our process includes system sizing, professional installation, and post-installation testing to guarantee comfort and efficiency.
Electrical Repairs
Our licensed electricians handle residential and commercial electrical repairs across Maryland. From circuit breaker issues to outlet replacements and panel upgrades, we diagnose and fix problems safely. We address flickering lights, tripped breakers, and electrical hazards while maintaining code compliance. Emergency services are available for urgent power failures or safety concerns.
Plumbing Services
GAC's plumbing division offers fixture installation, water heater repairs, gas line services, and sewer line maintenance. Our technicians handle leak detection, drain cleaning, and emergency plumbing issues like burst pipes. We install tankless water heaters, sump pumps, and gas lines for appliances, ensuring reliable operation and code compliance for Maryland properties.
Indoor Air Quality
We improve indoor air quality through air filtration systems, UV germicidal lights, and duct cleaning services. Our solutions address allergens, mold, and humidity issues using industry-certified methods. We install HEPA filters, dehumidifiers, and ventilation systems to create healthier living environments while maintaining HVAC efficiency.
Generator Installation
GAC installs whole-home backup generators from Generac to protect Maryland properties during power outages. Our technicians assess power needs, recommend appropriate generator sizes, and handle complete installations. We offer maintenance plans to ensure reliability during emergencies, covering automatic transfer switches and fuel system connections.
Questions
What HVAC services does GAC offer in Maryland?
GAC provides heating, cooling, ductless systems, thermostat installation, and HVAC maintenance across Maryland's residential and commercial sectors.
Do you offer emergency plumbing services?
Yes, we provide next-day emergency plumbing repairs for urgent issues like leaks, gas line problems, and water heater failures.
Are financing options available for HVAC replacements?
Yes, GAC offers flexible financing plans to help homeowners afford new HVAC systems without upfront costs.
What electrical services do you provide?
We handle panel upgrades, EV charging stations, surge protection, lighting installations, and emergency electrical repairs for Maryland properties.
How can I improve indoor air quality?
GAC offers air purifiers, dehumidifiers, duct cleaning, and UV light systems to enhance indoor air quality and reduce allergens.
What areas do you service?
We serve Gaithersburg, Montgomery County, Frederick County, Howard County, and surrounding Maryland areas for all HVAC, electrical, and plumbing needs.
