HVAC Services in Manassas, VA
HVAC trouble? Don’t stress—just call McCarthy. As leading HVAC technicians in Manassas, VA, we handle everything from AC repairs to water heater replacements. Whether you’re in Old Town or out near Signal Hill, local homeowners count on us for reliable, expert support.
About McCarthy Services
McCarthy Services has built a reputation for dependable HVAC services in Manassas, VA, backed by decades of experience and a commitment to quality. From emergency repairs to routine maintenance, our certified technicians deliver fast, professional service with every visit. We’re proud to be the team Manassas homeowners trust—day or night, year after year.
Why Choose McCarthy Services?
When you need HVAC, indoor air quality, or water heater help, you deserve more than just a quick fix—you deserve dependable service from a team that truly cares. Here’s what sets McCarthy Services apart:
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Trusted Local Experts: Proudly serving local homeowners since 1986
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Fast & Reliable Service: Same-day, 24/7 emergency availability
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Certified Technicians: Background-checked and drug-tested for your peace of mind
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Upfront Pricing: No hidden fees or surprise charges
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100% Satisfaction Guarantee: We don’t stop until the job is done right
Speak To A Trusted Technician Now
Our Services in Manassas, VA
We offer a full range of HVAC and air quality services to keep your home comfortable and running smoothly. Explore our heating, cooling, and indoor air quality solutions below.
AC Repair, Installation & Maintenance
Don’t let a broken AC ruin your day. Our team handles everything from new installs to routine tune-ups and fast, dependable HVAC repair in Manassas, VA. With expert care and reliable service, we keep your cooling system working at its best.
Heating & Furnace Services
When colder weather sets in, a reliable heating system is a must. From furnace repairs to full system replacements, our team delivers prompt, professional service to keep your home warm. We service all major brands and offer seasonal maintenance to help you avoid unexpected breakdowns when temperatures drop.
Indoor Air Quality Services
Dust, allergens, and humidity can all affect your home’s comfort. Our indoor air quality services help clean and balance the air inside, with options like air purifiers, advanced filtration, and humidity control, so you can breathe easier and feel better every day.
What Our Customers Say
“Exceptional work by McCarthy Services! My experience was above and beyond. They were so kind, quick, and got the job done so well. I’m finally comfortable again after a bit without AC. Would recommend to anyone.” - Allison
“The installation team did a great job, getting the water heater into the tight spot, fix the leaking ductwork with new ductwork and rerouting some of the gas and water pipes. David and his teammate are truly professional installer. Thanks.” - Sow
Awards and Accreditations
SUPER SERVICE
Awarded for how well we serve our customers every day.
NATE CERTIFIED
Our HVAC technicians are North American Technician Excellence certified, the highest level in the industry.
BBB ACCREDITED
Fully accredited by the Better Business Bureau.
Deals & Offers
McCarthy Services makes it easier to get the service you need without breaking your budget. Be sure to check out our current specials for savings on HVAC, air quality, and water heater services in Manassas. We also offer flexible financing options to help you manage larger repairs or system replacements.
Want year-round savings and priority service? Sign up for our Pro Service Plan and enjoy scheduled maintenance, repair discounts, and peace of mind all year long.
Benefits of Hiring Professional Manassas HVAC Technicians
Your HVAC system is one of the most important parts of your home—don’t leave it to guesswork. Working with trained professionals ensures safer repairs, better efficiency, and long-term peace of mind.
Here are the key benefits:
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Expert diagnostics: Quickly identify and fix issues the right way
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Safety assurance: Avoid risks from improper repairs or DIY attempts
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Efficiency boosts: Improve system performance and lower energy bills
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Warranty protection: Work that meets manufacturer standards and keeps coverage intact
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Long-term savings: Prevent costly breakdowns with professional maintenance
Schedule an Appointment with McCarthy Services
Whether you’re facing an urgent repair or planning ahead for seasonal maintenance, McCarthy Services is here to help. Our certified technicians deliver fast, expert service backed by a 100% satisfaction guarantee. Don’t wait for small issues to become big problems—get the reliable HVAC and water heater support your home deserves. Call 855-218-5544 today to get started.