24/7 Air Conditioning, Heating, & Electrical Services in Vienna, VA

You need a trustworthy team when your drains are clogged, your AC is busted, or your breakers keep tripping. Since 1931, homeowners have depended on United Air Temp for their heating, cooling, plumbing, and electrical needs.

Our 24/7 emergency repairs, commitment to satisfaction, and highly trained team are unmatched. No service request is too easy or challenging for our expert technicians to handle.

Book home services in Vienna by calling United Air Temp today! We guarantee quality craftsmanship and great customer service.

HVAC Services for Vienna Homes

Vienna residents trust and rely on United Air Temp for all their home comfort needs. Let our highly trained team help you keep your heating and air conditioning systems operating efficiently year-round. We also offer ductwork installation and replacement and thermostat repair.

Sign up for our HVAC maintenance plan and stay ahead of heating and AC failures with inspections every spring and fall. Our Full Service Agreement includes:

• Multipoint air conditioning and heating inspections
• No charge for preventative maintenance on covered equipment
• Priority service
• No charge for service calls
• No charge for service repair parts
• No charge for labor
• And more!

24/7 Heating Solutions

Heating systems rarely break down when it’s convenient. That’s why we offer 24/7 emergency heating repairs. When you call, we’ll respond quickly and arrive with the tools and parts to resolve your issue.

United Air Temp is confident in our team’s ability to service any heating system. We service and install gas and electric furnaces, heat pumps, ductless mini-splits, dual-fuel heating systems, boilers, geothermal heating systems, and gas fireplaces. Our heating solutions include:

• Heating installation: Select from our broad range of top-quality heating systems to have our team install a brand-new unit or replace your existing equipment in no time.
• Heating repair: We offer 24/7 emergency heating repair throughout the McLean region, so you never have to wait for “normal business hours” to resolve your furnace failure.
• Heating maintenance: Keep your heating system running smoothly all season long by scheduling annual heating maintenance with our expert technicians.

AC Services 

Vienna summers can become brutally hot and humid, making a reliable AC a necessity. United Air Temp offers cooling solutions designed to keep your home comfortable when it counts the most, including:

• Air conditioning installation: Whether your existing equipment needs replacement or you’re building a new home in McLean that needs AC, our team can get the job done right.
• Air conditioning repair: Our AC repair technicians are available 24/7 to provide the emergency AC repairs you need to keep cool despite an unexpected breakdown.
• Air conditioning maintenance: Allow our team to extend your system lifespan, improve overall performance, and cut cooling costs through enhanced efficiency with our AC maintenance services.

Indoor Air Quality Solutions

It may be a surprise that the air inside homes can be up to 5 times more polluted than the air outside on average. Don’t worry — United Air Temp has the solutions to keep you breathing easy.

We offer a broad range of indoor air quality systems and solutions designed to combat unwanted airborne contaminants in the home:

• Humidifier and dehumidifier installation and repair
• Dryer vent cleaning
• UV air purifier installation
• Attic fan installation and repair

Electrical Services

Electricity keeps all your appliances and systems running. So, don’t risk unsafe DIY remedies when there’s a power interruption. Instead, take the safe approach and trust UAT for electrical services in Vienna. We provide:

• Whole-home generator installation: We’ll size and install a new standby generator that will switch on automatically whenever the power goes out.
• Electric box replacements: We’ll replace your outdated and unreliable service panel with a modern, more efficient model to suit your home’s electrical needs.

Local Service Coverage in Vienna

Vienna may be small on the map, but its neighborhoods each have a unique character — and unique mechanical challenges we know how to solve.

Historic Center & Maple Avenue Corridor

Older brick colonials near Church Street’s boutiques often still rely on vintage boilers and galvanized plumbing. We carry parts for legacy systems and can retrofit high‑efficiency equipment without disturbing historic details. Along Maple Avenue, restaurants and mixed‑use buildings demand commercial‑grade rooftop units and grease‑resistant drain lines; our commercial division keeps them code‑compliant and open for business.

Windover Heights & Vienna Woods

In tree‑lined Windover Heights, mature shade lowers cooling loads but can clog outdoor condenser coils with pollen and leaves. Annual coil cleaning and right‑sizing replacement units prevent rising energy bills. Vienna Woods’ mid‑century ranches were built with narrower supply ducts; we often design duct‑renovation projects so families can finally enjoy even temperatures from basement playrooms to attic offices.

Tysons & Greensboro District

High‑rise condos around Tysons Corner Center, The Boro, and the Greensboro Metro require specialized heat‑pump systems and building‑approved service procedures. Our EPA‑certified technicians follow condo board regulations, coordinate elevator access, and complete work within quiet hours to respect your neighbors.

Oakton & Blake Lane

Larger lots in Oakton frequently use well water or experience high water pressure from municipal lines. We install constant‑pressure well pumps, pressure‑reducing valves, and whole‑home water filters to protect fixtures and appliances. Many Oakton properties also have extensive irrigation systems; our plumbers winterize backflow preventers and repair underground PVC without tearing up manicured lawns.

Merrifield, Dunn Loring & Mosaic District

With dense new‑build townhomes and loft apartments, Merrifield’s HVAC rooms can be tight. We recommend ductless mini‑split zones to eliminate bulky ductwork and give each floor individual temperature control. Hot summers make rooftop patios popular; our electricians add safe, weatherproof outlets and low‑profile lighting so you can entertain after dark.

Wolf Trap & Difficult Run

Homes backing to the Wolf Trap National Park for the Performing Arts often sit on sloped lots that channel stormwater toward foundations. Our sump‑pump and French drain solutions keep basements dry, and whole‑home generators ensure the show goes on when thunderclaps silence the grid. Dense tree cover also means frequent voltage dips; a service‑panel upgrade protects sensitive electronics.

Fairfax City Fringe & Providence District

Just south of town, split‑level homes near the Fairfax City line may have original 1970s electric baseboard heat. We retrofit heat‑pump technology that cuts winter bills without touching finished interior walls. Along Gallows Road and Providence District’s cul‑de‑sacs, aging cast‑iron sewer laterals can fail; our trenchless lining restores flow in a single day, sparing your azaleas.

Wherever you live — from the quiet cul‑de‑sacs off Nutley Street to the condos near Spring Hill Metro — one call brings our expertise to your driveway.

Schedule Home Services Today!

United Air Temp’s technicians are trained to deliver extraordinary service no matter what HVAC, plumbing, or electrical needs arise. Since 1931, we’ve become a leading service provider many homeowners count on. Choose our team, and we’ll provide the following:

• Upfront, honest pricing
• Financing options on approved credit
• Quality craftsmanship from the area’s most highly trained technicians
• Convenient scheduling and on-time appointment arrival
• 100% satisfaction guaranteed
• 24/7 emergency repair availability

If you need qualified home service expertise, schedule HVAC, plumbing, or electrical services with United Air Temp. Call today!

Frequently Asked Questions for Vienna HVAC

How quickly can you reach my home in Vienna?

Our dispatch center is on the Capital Beltway, so most Vienna addresses see a technician within an hour — faster for true emergencies.

Do you service both gas and electric furnaces?

Yes. Our NATE‑certified techs diagnose and repair gas, electric, oil, dual‑fuel, and geothermal equipment from all major manufacturers.

Can I book plumbing and HVAC work together?

Absolutely. Many homeowners schedule an annual HVAC tune‑up and water‑heater flush on the same visit to save time.

What neighborhoods do you cover?

We serve every corner of Vienna, including Windover Heights, Vienna Woods, Tysons, Oakton, Merrifield, Dunn Loring, and Wolf Trap, plus surrounding Fairfax County communities.

Do you handle HOA and condo board paperwork?

Yes. We provide proof of insurance, license numbers, and detailed scope letters to satisfy management requirements before work begins.

How often should I change my HVAC filter?

Most Vienna homes need a new filter every 60‑90 days. If you live near construction on Rt. 123 or have pets, check monthly.

What financing options do you offer?

Approved customers can choose low‑interest plans or six‑month deferred‑interest options on installations over $1,000.

Will a whole‑home generator add resale value?

Local realtors report that standby power is a sought‑after upgrade in Vienna, especially for buyers who telecommute from Tysons offices.

Why does my basement smell musty after rain?

High groundwater along Difficult Run can seep through masonry. Our plumbers install sealed sump‑pump pits and battery backups to keep spaces dry.

Are tankless water heaters worth it in Northern Virginia?

For households that use under 80 gallons daily, tankless units save space and cut gas bills. We size units based on simultaneous‑fixture demand.