Northern Virginia · Heating · Cooling · Air Quality
Family-owned and NATE-certified since 2003, installing, repairing, and maintaining home comfort across Northern Virginia — done right the first time, at a fair price, with no pressure and no upsells.
NATE-certified technicians · Minority-owned · Persian-speaking staff · HomeAdvisor screened & approved
What we do
From a summer breakdown to a full system replacement, Zagros handles every part of your home's heating, cooling, and air — with the same honest advice our neighbors have trusted for two decades.
Beat the Virginia summer with dependable cooling — installed and serviced by techs who size it right the first time.
Reliable warmth when the cold snaps. Gas, electric, dual-fuel and heat-pump systems installed, repaired, and maintained.
Breathe easier at home with filtration, purification, and humidity control matched to your family's needs.
The hidden half of your system. We clean, seal, repair, and custom-build ductwork so every room stays even.
Hot water without the wait. From dependable repairs to space-saving tankless upgrades, done clean.
Lower bills and better control. Smart thermostats and high-efficiency systems, plus a plan to keep them humming.
Also serving businesses with commercial HVAC, system evaluations, and HOA inspection reports across Northern Virginia.
Current offers
Real savings — not gimmicks. Mention these when you book, and ask about financing on new system installations.
Free
Same-day, in-home estimates
No trip charge, no obligation — just an honest assessment.
$79
Precision AC tune-up
A full multi-point inspection to keep your system efficient all summer.
$500 off
New system installation
Upgrade to a modern, efficient system and save on day one.
10% off
Military, first responders & seniors
Service & installation discount for those who serve and have served.
Why Zagros
Since 2003, homeowners across Northern Virginia have called Zagros back again and again — not because of flashy ads, but because we tell the truth. If a repair makes more sense than a replacement, we'll say so. And we treat your home like our own, from shoe covers at the door to a spotless cleanup when we leave.
Our work
A look at real Zagros projects across Northern Virginia — residential and commercial, from single-day changeouts to crane-set rooftop units.
In their words
★★★★★"We've used Zagros for 10+ years and trust them completely. What really sets them apart is their honesty — they never pressure us into anything. Knowledgeable, prompt, and professional."
★★★★★"Best HVAC company in the DC area. I've been a customer for 15 years. The service is excellent, the price is unbeatable, and the customer care is the best. Highly recommended. A+++."
★★★★★"I got estimates from at least 8 companies and Ray had the best — about $4k less for the same exact system. Installation was just as painless. Highly recommend!"
★★★★★"Great product at a great price — much cheaper than the other estimates I received. Their technicians protected my rugs and cleaned up after the install. The system works beautifully."
★★★★★"The tech arrived on time, wore shoe covers, and did a thorough job inspecting our units. Not everyone services Carrier systems, so I always use Zagros — they never disappoint."
★★★★★"Ray and his team did an excellent job from the initial estimate through final installation, and Sean at the front office provided superb customer service. Happy to recommend Zagros to anyone."
Get in touch
Call, text, or book online — we'll schedule a free in-home estimate at a time that works for you.
Join thousands of Northern Virginia homeowners who've trusted Zagros since 2003. Free same-day estimates, honest advice, and work we stand behind.