Reliable 24/7 HVAC Services in Virginia

Our Process

Expert Heating & Cooling Solutions You Can Trust

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Services

Our HVAC Services in Northern Virginia

At United Tech HVAC Services, we’re committed to keeping your home or business comfortable year-round. With expert service, reliable workmanship, and a focus on long-term efficiency, we offer:

HVAC System Replacement

Upgrade to a modern, energy-efficient system that delivers better performance and lower utility costs.

AC Installation & Repair

Whether you're installing a new unit or need fast repairs, we’ll keep your space cool and comfortable.

Thermostat Installation

Improve temperature control with professional installation of smart or traditional thermostats.

A/C System Maintenance

Extend the life of your equipment and avoid costly repairs with routine maintenance tailored to your system.

Heating System Maintenance

Stay warm and prepared for winter with thorough inspections, tune-ups, and maintenance services.

Ready to schedule your service?

Call us today at 703-488-8362 for a free consultation and personalized quote.

20+

Years of Experience

500+

Happy Clients

1,000+

Residencies Served

Why Choose United Tech HVAC Services?

At United Tech HVAC Services, we combine expert craftsmanship with responsive customer care to deliver heating and cooling solutions you can count on. Here’s what sets us apart:

Local Expertise

Based in Sterling, VA, we understand the unique heating and cooling needs of Northern Virginia homes and businesses.

Owner-Operated Service

Work directly with the owner, Edwin — a dedicated HVAC professional who treats every project like it’s his own.

Licensed, Insured, and Reliable

Rest easy knowing your HVAC system is handled by fully certified professionals committed to doing the job right.

Upfront, Honest Pricing

No hidden fees, no surprises. Just fair, transparent estimates and clear communication from start to finish.

Prompt Response Times

We prioritize your comfort with fast scheduling and reliable service, whether it’s an emergency repair or routine maintenance.

Workmanship You Can Trust

From system installations to seasonal tune-ups, our work is built to last — backed by experience, precision, and attention to detail. Call us today at 703-488-8362 for a free consultation and personalized quote.

Sterling · Ashburn · Herndon · Reston · Leesburg · Chantilly · Fairfax · Manassas · Centreville · Arlington · Alexandria

Our Process

At United Tech HVAC Services, we believe great results start with a simple, honest process. From the first call to final installation or repair, we make HVAC service stress-free and straightforward:

Free Consultation & Quote

We begin with a quick phone call to understand your needs and schedule an on-site visit. You’ll receive a clear, upfront quote with no hidden fees.

Expert Diagnosis & Recommendations

Our certified technicians inspect your system and walk you through the best solutions—whether it’s a simple repair or a full system upgrade.

Quality Installation & Repair

We get to work using trusted tools, proven methods, and high-quality parts. Every job is done right the first time to ensure long-term performance.

Final Testing & Follow-Up

Before we leave, we test your system thoroughly and answer any questions. We’ll also walk you through maintenance tips to keep everything running efficiently.

Ready to schedule your service?

Call us today at 703-488-8362 for a free consultation and personalized quote.

an abstract photo of a curved building with a blue sky in the background

“We’ve used United Tech for both heating and cooling issues over the past year, and every time they’ve been reliable, honest, and affordable. It’s rare to find a company that cares this much.”

★★★★★

See What Our Customers Are Saying

Our customers rave about our responsiveness, punctuality, and top-quality work.

★★★★★

“Absolutely outstanding service. Scheduling was easy, they arrived exactly when promised, and their work was top-notch. UTech is our go-to HVAC company now.”

★★★★★

“UTech came through fast when our AC broke in the middle of a heat wave. The technician showed up on time, explained everything clearly, and had it running again within the hour. Highly recommend their professionalism and speed.”