Service areas
Fairfax Heat Pump Co serves the City of Fairfax and Fairfax County.
Cities we serve
ZIP codes we cover
We dispatch to these ZIP codes. If your ZIP is listed, a technician can reach you the same day in most cases.
- 22030
- 22031
- 22032
Neighborhoods and landmarks
These are the areas we know best — the housing stock, the ductwork, and the failure patterns that come with each.
- Main Street
- Mosaic District
- Fairfax City
- George Mason University
- Chain Bridge Road
How far we travel
Our working radius is the City of Fairfax and Fairfax County. Beyond that, response times stretch and the after-hours surcharge starts to apply even during the day, because the drive is the constraint rather than the work.
If you are just outside the boundary, send a request and ask. We would rather tell you we do not cover your street than show up late and charge you a trip fee for a visit we should not have taken. In practice we say yes to most edge addresses and no to a few, and the answer depends on the day and the load rather than on a rule we are hiding.
Why the boundaries matter for heat pumps
Heat pump sizing is a function of design temperature, and design temperature is a function of where you are. Fairfax sits at one set of winter design conditions; the western edge of the region sits at a colder one. That is not a marketing distinction — it changes the equipment specification, the balance point, and whether a standard unit will hold the house on the coldest night or lean on auxiliary heat until spring.
It also changes the housing. Fairfax has one of the widest housing ranges in the county — 1960s ranches near the city center, 1980s colonials in the outer neighborhoods, and newer infill where lots have been subdivided. That means we work on everything from original single-stage equipment to recently installed variable-speed systems, often on the same street.
When we quote a replacement, the load calculation uses the actual location rather than a regional average. That is the difference between a system that runs efficiently for fifteen years and one that runs on resistance heat every January.
Response times within the core of Fairfax run shorter than at the edges of the listed ZIPs, and that has nothing to do with priority — it is drive time. If you are at the boundary and the request is urgent, say so when you send it and we will tell you honestly whether a technician can reach you inside the window you need. That answer is worth more than a promise we cannot keep.