Cardinal provides precise plumbing, HVAC, and air quality services across Northern Virginia. Founded by master plumbers, we prioritize technical rigor and transparent conduct over temporary fixes.
Foundationally sound environments begin with quiet, efficient plumbing. Our licensed technicians manage everything from critical pipe restoration to the installation of high-efficiency water heating systems.
Northern Virginia demands resilience from HVAC systems. We provide calibrated heating and cooling that maintains precise temperature control regardless of external conditions.
Furnace installation and repair designed for thermal efficiency and long-term reliability.
A/C repair and smart thermostat integration for modern energy management.
True comfort is felt in the quality of the air and water. We deploy hospital-grade filtration and advanced water softening to protect your health and your home's infrastructure.
Air duct sealing and whole-home filtration systems that neutralize pollutants and allergens at the source.
Filtration and softening that eliminates mineral buildup and improves the clarity and taste of your home's water.
Maintenance plans are not just about repairs; they are about extending the lifecycle of your home's most vital systems. Members receive seasonal tune-ups, transparent pricing, and priority scheduling.
Available 24 hours a day for urgent repairs and scheduled consultations.
Our technicians are on call 24/7 across Alexandria, Sterling, and Gainesville.