Are You Looking for HVAC Contractors in Gaithersburg, MD?

Explore 12 HVAC businesses in Gaithersburg, MD offering heating and cooling repairs, system installations and maintenance. Read customer reviews, check which services each provider handles and contact suitable contractors about estimates and availability.
Atlantic Coastal Cooling & Heating is a Gaithersburg, MD-based HVAC company serving residential and commercial clients. We specialize in heating, cooling, air quality, and maintenance solutions, emphasizing personalized service, technical excellence, and customer satisfaction. With over 60 years of combined experience, we deliver reliable, energy-efficient systems and prioritize long-term relationships through honest work and fair pricing.
Heating Cooling Air Quality
Professional, on time, reasonably priced Attentive, answered questions The best technician
Germantown Heating & Air Conditioning specializes in HVAC repair, installation, and maintenance services for residential and commercial clients. With over 20 years of experience, we deliver reliable solutions using factory-trained technicians and premium parts. Our commitment to customer satisfaction includes 24/7 emergency services and free estimates for system replacements.
AC Repair Air Conditioning Installation Heating Services
Excellent service First class service Honest and competent
Presidential Heating & Air Conditioning provides expert HVAC installation, repair, and maintenance services for residential and commercial clients in Gaithersburg, Maryland, and surrounding areas. Since 1982, we've combined Carrier-certified expertise with personalized service to ensure optimal indoor comfort. Our commitment to 24/7 emergency response, energy efficiency, and customer education sets us apart in the HVAC industry.
HVAC Installation Emergency Repair System Maintenance
Prompt and caring service Professional and courteous Competitive pricing
Not rated yet
Mannix Heating & Cooling
16 Years
Emergency
Not rated yet
Mannix Heating & Cooling provides comprehensive HVAC services including installation, repair, and maintenance for residential and commercial clients. Serving Virginia, Maryland, and Florida since 2010, we specialize in heating, air conditioning, and indoor air quality solutions. Our certified technicians deliver reliable, 24/7 service with a focus on customer satisfaction and technical excellence.
HVAC Installation Air Conditioning Repair Heating Maintenance
Lifesavers Honest technicians Prompt emergency response
Not rated yet
J & K Air Conditioning & Heating
45 Years
Emergency
Not rated yet
J & K Air Conditioning & Heating delivers expert HVAC repair, installation, and maintenance services for homes and businesses in Maryland and Northern Virginia. We specialize in air conditioning systems, heat pumps, gas furnaces, and indoor air quality solutions. Backed by Carrier and Lennox product partnerships, our NATE-certified technicians ensure reliable comfort with energy-efficient technology.
Air Conditioning Repair Heat Pump Installation Gas Furnace Service
Quality service is extraordinary Over 30 years relationship Glowing remarks on Facebook
Not rated yet
Harvey W Hottel
50+ Years
Emergency
Not rated yet
Harvey W Hottel, Inc. provides comprehensive commercial HVAC and plumbing services, specializing in energy-efficient systems like geothermal and VRF. Since 1945, weve served the Mid-Atlantic Region with design, installation, and maintenance solutions for commercial buildings, prioritizing sustainability through LEED-certified projects.
Commercial HVAC Services Plumbing Services Geothermal Systems
Best HVAC company in the region Great work and professional service Top notch plumbing and HVAC departments
Not rated yet
ADI Heating & Air Conditioning
28 Years
Emergency
Not rated yet
ADI Heating & Air Conditioning provides expert HVAC installation, repair, and maintenance services for residential and commercial properties in Montgomery County, Maryland, and surrounding areas. With over 40 years of experience, we deliver energy-efficient solutions, 24/7 emergency support, and comprehensive maintenance plans to ensure reliable heating and cooling systems. Our commitment to quality, customer satisfaction, and community service makes us a trusted local partner for HVAC needs.
AC Maintenance Heating Repair Ductless Systems
Excellent customer service Saved hundreds on energy bills Professional and courteous crew
Not rated yet
NAC Mechanical Services
43 Years
Emergency
Not rated yet
NAC Mechanical Services delivers comprehensive HVAC solutions in the Baltimore-Washington DC area. Founded in 1983, we specialize in design, installation, maintenance, and emergency repair services for commercial and institutional clients. Our energy-efficient systems and operational assessments help businesses reduce costs while ensuring reliable climate control.
HVAC Services Operational Assessment Scheduled Maintenance
GAC Services
50+ Years
Emergency
Not rated yet
GAC Services
50+ Years
Emergency
Not rated yet
GAC Services is a trusted Maryland-based provider of HVAC, electrical, and plumbing solutions with over five decades of experience. We specialize in residential and commercial heating, cooling, electrical, and plumbing services, emphasizing reliability, energy efficiency, and customer satisfaction. Our commitment to community values includes discounts for veterans and first responders, alongside maintenance memberships for cost-effective system care.
Air Conditioning Repair Heating Maintenance Plumbing Repairs
Fast service Professional technicians Competitive pricing
Not rated yet
Quality Air & Heating
14 Years
Emergency
Not rated yet
Quality Air & Heating provides expert HVAC installation, repair, and maintenance services alongside plumbing and handyman solutions for residential clients in Frederick and Montgomery Counties. With over 10 years of experience and 35+ years of combined technical expertise, we deliver reliable, energy-efficient systems while maintaining a commitment to customer education and transparent service practices.
HVAC Installation Plumbing Repair Handyman Services
Prompt and professional Efficient and reasonable Knowledgeable and courteous
Eli's Air Conditioning & Heating provides expert HVAC services in Rockville, Maryland, specializing in installation, repair, and maintenance of heating and cooling systems. We deliver energy-efficient solutions tailored to residential and commercial needs, emphasizing customer education and transparent pricing. Our licensed technicians ensure optimal indoor air quality and system performance across Montgomery County and Washington, DC.
HVAC Installation Emergency Repairs Preventive Maintenance
Excellent service Very professional Competitive price
Not rated yet
Michael Bonsby
23 Years
Emergency
Not rated yet
Michael Bonsby HVAC, Plumbing & Electrical provides comprehensive heating, cooling, electrical, and plumbing services to residential and commercial clients in Maryland, Virginia, and Washington, DC. With over two decades of experience, we prioritize customer satisfaction through reliable 24/7 emergency services, licensed technicians, and transparent pricing. Our commitment to quality and community trust drives every project we undertake.
HVAC Repair Plumbing Services Electrical Work
Incredibly responsive Knowledgeable technicians Professional and courteous
Rockville (4.9 mi) Silver Spring (14.1 mi) Sterling (15.4 mi) Beltsville (17.4 mi) Falls Church (18.1 mi) Washington (18.5 mi) Arlington (18.9 mi) Brentwood (19.0 mi) Laurel (19.1 mi) Leesburg (19.5 mi)