Centreville, Virginia, sits in Fairfax County's western reaches, where hot, humid summers and cold winters put steady demand on home heating and cooling systems. John & K Service LLC serves homeowners and property owners in this community, providing residential and light commercial heating and cooling work for systems of many ages and makes.
Local market — Centreville
HVAC pros here
36
Have a website
8%
Cooling demand
1,178
Heating demand
4,717
Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).
The company covers the full range of HVAC needs. AC Services include diagnosis, refrigerant checks, and repairs when a unit struggles to cool. Heating Services and Furnace Services address ignition problems, airflow issues, and worn components that reduce comfort or efficiency. Heat Pumps, Thermostat Services, and Ductwork Services round out the offering, from thermostat installation and calibration to sealing and repairing leaky duct runs. Emergency HVAC calls are handled promptly when a system fails during extreme weather, and Maintenance & Tune-up visits help prevent those breakdowns in the first place.
John & K Service LLC holds Virginia state contractor license #107127 and has been licensed since 2006, giving the business more than 20 years of experience in the trade. That history reflects a practical approach: clear explanations of what is wrong, honest options for repair or replacement, and attention to the details that affect how a system runs day to day.
Homeowners comparing local HVAC professionals in Centreville benefit from asking specific questions about licensing, the services a company performs, and how it handles urgent calls. John & K Service LLC welcomes those conversations, and the directory listing on HVAC Service Fast is a convenient place to review the details before making a decision.
Frequently Asked Questions
What services does John & K Service LLC offer?
John & K Service LLC offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up. Contact the company directly to confirm the work needed for your system.
Which areas does John & K Service LLC serve?
John & K Service LLC serves Centreville, Virginia, and nearby communities in the local area. Confirm service coverage for your specific address before scheduling.
How do I choose a licensed, insured HVAC contractor in Centreville?
Look up the contractor's license number in the Virginia state contractor registry and ask for proof of liability and workers' compensation insurance. Choosing a company with a clear local presence and written estimates also helps you compare options fairly.
What should I check before hiring an HVAC professional?
Confirm the license, insurance, and any warranties on parts and labor, and request a written estimate that itemizes the work. Ask how the company handles emergency calls and whether it provides maintenance plans.
What are signs it is time to call an HVAC professional?
Call a professional if your system runs constantly without reaching the set temperature, makes grinding or banging noises, or produces uneven heating or cooling. A sudden rise in energy bills, weak airflow, or a burning smell also warrants prompt service.
Is this your business?
6 of 12 profile details are filled in.
Added (6)
Missing (6)
Claim it free to add the missing details:
PhoneWebsiteBusiness hoursLogoPhotos of your workSocial profiles
HVAC Service Fast is an independent HVAC directory and is not affiliated with this business. Listing
details are compiled from publicly available information and may be incomplete or outdated. We do not endorse
or guarantee any provider — please verify licensing and insurance directly. See our
Disclaimer.
Contact John & K Service LLC
Send your request through HVAC Service Fast — it's free. The business will reply to you directly.
We use cookies for essential site functions, analytics and advertising. See our
Cookie Policy.
