Mann-In: Your Trusted HVAC Experts in Chantilly, VA

For over 40 years, Mann-In has been the go-to heating and cooling company for homes across Northern Virginia. Based in Chantilly, VA, this family-owned business brings deep local knowledge to every job, from quick repairs to full system replacements. They understand the local climate—how humid summers and chilly winters can strain your HVAC system—and they build solutions that last.

Business Overview

Mann-In is a Virginia Class "A" contractor with a team of 15 dedicated staff. They focus entirely on residential HVAC services, offering 24-hour emergency support for those sudden breakdowns. Whether you're in a historic Fairfax home or a new build in Ashburn, they provide reliable comfort year-round.

Key Services

Mann-In handles all your home comfort needs. Their main services include:

• HVAC Installation & Replacement: They specialize in high-efficiency Carrier systems, including Infinity® and HYBRID HEAT™, but can install other brands too.
• Repairs for All Makes & Models: No matter the brand or age of your system, their technicians can fix it. They charge an hourly rate with no travel fees.
• Maintenance & Service Agreements: Regular check-ups keep your system running smoothly and save you money on energy bills.
• Indoor Air Quality & Energy Audits: They improve your home's air and efficiency with services like duct cleaning, gas conversions, and home performance assessments.
• Water Heater Services: Installation and repair for gas, electric, and tankless water heaters.

Areas Served

Mann-In serves a wide part of Northern Virginia. They know the housing styles and common HVAC issues in communities like:

• Centreville, Reston, Leesburg, Ashburn
• Burke, Manassas, Oakton, Fair Oaks
• Sterling, South Riding, Herndon, Chantilly
• Fairfax, Tysons Corner, Vienna, Brambleton
• And many more, from Purcellville to Dunn Loring.

Their familiarity with local buildings—from older colonials to modern townhomes—helps them provide faster, more effective service.

Company History

The owners started Mann-In from the ground up over four decades ago. They've kept a hands-on approach, working directly with mechanics, sales, and office staff to maintain quality. Growth has been steady; today, they're a Carrier Factory Authorized Dealer, a relationship they've held since 2004.

Leadership

The founders are still involved daily, ensuring every job meets their standards. Their deep roots in Chantilly, VA mean they're not just another contractor—they're neighbors who care about the community. Their commitment shows in high ratings from the Washington Consumer Checkbook and the Better Business Bureau.

Specialties & Highlights

What makes Mann-In stand out?

• Carrier Expertise: They've won the Carrier President's Award for 17 straight years, a mark of excellence in installation and service.
• Honest Pricing: Hourly service rates with no hidden travel charges make costs clear upfront.
• Full-Service Comfort: From mini-splits to gas furnaces, they handle it all, including energy audits and indoor air quality.
• Bonded & Insured: Full protection for your home and peace of mind.

Why Locals Choose Mann-In

Homeowners in Chantilly, VA and across Northern Virginia pick Mann-In for reliability. With four decades of experience, they've seen every HVAC problem and know how to fix it right. Their focus on customer comfort—"the Comfort they desire and the Quality they deserve"—is backed by real awards and local trust. When you need heating or cooling help, Mann-In delivers straightforward, skilled service you can count on.