When it’s time to upgrade or replace your HVAC system, trust B.L. James & Son, your local experts for HVAC installation in Fairfax, VA. With more than two decades of experience, our licensed and certified technicians deliver energy-efficient heating and cooling systems that meet local building codes and provide year-round comfort. We’re known for skilled craftsmanship and dedicated customer care on every job.
We proudly serve homeowners, condominium residents, and businesses across Fairfax, VA, including neighborhoods such as Del Ray, Rosemont, Old Town, and Seminary Hill. Every HVAC system we install is tailored to your home’s needs, your comfort preferences, and your budget.
Schedule your HVAC installation and replacement in Fairfax, VA.
At B.L. James & Son, we specialize in high-quality HVAC installation and replacement services designed to keep your indoor environment comfortable and efficient. Whether you’re replacing an aging system, upgrading to a more efficient model, or improving indoor air quality, we’ll install a solution that’s built for reliability and performance.
Our installation services include:
Stay cool during Fairfax’s humid summers with an air conditioning system designed to fit your space. We install both central air systems and ductless mini-splits that provide consistent cooling and excellent energy efficiency.
Prepare for cold winters with a professionally installed furnace or boiler. Whether you prefer gas or electric, we install systems that are code-compliant, efficient, and built for dependable heat during the coldest months.
Clean, breathable air starts with the right system. We install whole-home purifiers, dehumidifiers, humidifiers, and advanced filtration equipment to reduce dust, allergens, and pollutants all year long.
While DIY HVAC installation may seem cost-effective, it often leads to problems such as poor system performance, safety hazards, or code violations. Incorrect sizing, improper wiring, or missing permits can result in costly repairs and may void your system’s warranty.
With B.L. James & Son, your HVAC system will be installed properly, safely, and in full compliance with local regulations. Our team performs detailed load calculations, offers personalized recommendations, and installs each system with precision. You’ll enjoy reliable, efficient performance backed by warranties and professional support.
Local Experience
We’ve been serving Fairfax and Northern Virginia for over 20 years, earning a reputation for dependable service and superior craftsmanship.
Family-Owned and Customer-Focused
As a family-owned company, we take pride in treating every home with care and ensuring a smooth, stress-free experience from start to finish.
Full-Service HVAC and Plumbing Solutions
We provide more than just installations. Our team offers plumbing services, indoor air quality upgrades, and preventative maintenance to keep your home comfortable year-round.
Commitment to Quality and Safety
We use only high-quality equipment and proven installation methods to meet today’s highest standards for performance, safety, and efficiency.
Don’t wait until your system fails to start thinking about an upgrade. Whether you’re replacing an outdated unit or looking to boost efficiency, B.L. James & Son delivers timely service, professional installation, and lasting comfort for your Fairfax home or business.
Schedule your HVAC installation and replacement in Fairfax, VA.
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The B.L. James & Son team likes to move quick and reply to customer inquiries the same business day. Once we troubleshoot the issue, estimates are provided the same day or by the end of the next day. Our work begins the moment you call, and since we’re open 24 hours a day there’s no reason to wait. Call B.L. James & Son anytime, we’ll be there to help.
Named 2023 and 2024 Nextdoor
Neighborhood Fave
Named 2022 Best Emergency Plumber in Arlington by Expertise.com
Named Sun Gazette 2020 Best of the Best Plumbing Contractor
Best of Arlington Magazine 2023 and 2025 Top Vote Getter
B.L. James & Son Is a veteran-owned mechanical contractor providing plumbing, heating and cooling services to residents and business in Arlington, Virginia and the surrounding community.
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