Business Details
45 Years
experience
Emergency
services
Expert HVAC Repair & Installation in Gaithersburg, MD
Established in 1981, J & K Air Conditioning & Heating has served Montgomery County, MD, as a family-owned business dedicated to delivering reliable HVAC solutions. Our team of accredited technicians specializes in residential and commercial air conditioning repair, heating system installations, and maintenance contracts. We prioritize customer satisfaction through 24/7 emergency services, free equipment estimates, and partnerships with trusted brands like Carrier and Lennox. Our commitment to quality includes energy-efficient upgrades such as R454B refrigerant systems and custom ductwork installations.With decades of local expertise, we ensure optimal indoor air quality through services like whole-house air purifiers and humidifier repairs. Our reputation for excellence is reflected in top ratings from consumer publications and a loyal client base spanning over 30 years. We offer financing options and federal tax credit eligibility to support long-term comfort solutions for homeowners and businesses alike.
Services
AC Repair
Heat Pump Installation
Gas Furnace Repair
Duct Installation
Mini Split Systems
Air Purifiers
Humidifier Repairs
Burner Service
Thermostat Upgrades
Maintenance Contracts
Details
- Year established: 1981
Highlights and features
- Family-owned since 1981 with local expertise in Montgomery County
- 24/7 emergency HVAC services for urgent comfort needs
- Free equipment estimates with no trip charges
- Accredited technicians trained on all major HVAC brands
- Federal tax credit eligibility for qualifying system upgrades
Associations and certifications
- Accredited Service Technicians
What people say
Quality service
30-year relationship
Glowing remarks
Top ratings
Reliable technicians
Services
AC Repair
Our technicians repair all brands of air conditioning systems, restoring cooling performance quickly. We specialize in diagnosing and fixing refrigerant leaks, compressor issues, and thermostat malfunctions. With fully equipped vehicles, we provide same-day repairs for residential and commercial properties.
Heat Pump Installation
We install energy-efficient heat pump systems that provide both heating and cooling. Our experts recommend R454B refrigerant-compatible models to future-proof your investment. New installations include 10-year parts warranties when registered and free programmable thermostats with complete system upgrades.
Duct Installation
Our team designs and installs custom ductwork for new constructions or system upgrades. We optimize airflow distribution while integrating air purification systems. Services include replacing old ductwork, sealing leaks, and improving energy efficiency through proper insulation and sizing.
Air Purifiers
We install Fresh-Aire UV APCO air purifiers that use UVC light and activated carbon to eliminate odors, allergens, and microbes. These low-maintenance systems work with existing HVAC equipment to improve air quality in homes and commercial spaces without ozone production.
Maintenance Contracts
Our worry-free service contracts include annual tune-ups, priority scheduling, and discounted repairs. Regular maintenance extends equipment lifespan, improves efficiency, and prevents breakdowns. Contracts cover furnaces, heat pumps, air conditioners, and air filtration systems for residential and commercial clients.
People
Kyle Fleming
Owner/Operator
With over 40 years of HVAC experience since 1981, Kyle oversees daily operations and technician training. He specializes in system diagnostics and energy-efficient upgrades.
Questions
What HVAC services do you offer?
We provide AC repair, heat pump installations, gas furnace services, ductwork, air purifiers, and maintenance contracts for residential and commercial clients.
Do you offer emergency HVAC service?
Yes, we provide after-hours emergency services for urgent heating and cooling needs in Montgomery County and surrounding areas.
Are financing options available?
Qualified buyers can choose no-interest financing for 12 months or rebates up to $1,800 on new Lennox system installations.
What areas do you service?
We serve Montgomery County (including Gaithersburg, Germantown, Rockville), Frederick County, Prince George's County, and Fairfax County, VA.
Do you offer tax credits for new systems?
New HVAC installations between September 8th and December 5th, 2025, qualify for up to $2,000 in federal tax credits under the Inflation Reduction Act.
How can I schedule service?
Call 301-990-0780 for emergencies or use our contact form for routine appointments. We respond to inquiries within 24 business hours.
