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When the air conditioner in your Mountain View home stops keeping up, the first job is finding out why. Cool Aid has repaired residential cooling systems in Santa Clara County since 1966, and our technicians drive over from our Santa Clara shop to test the system, name the failed part, and explain your options before any work starts.
Why AC repair in Mountain View depends on the house
Mountain View's housing stock splits roughly into two groups, and each one breaks down in its own way. Streets of single-family homes built in the 1950s and 1960s sit a few blocks from townhome and condo developments that went up much more recently. The same symptom, a warm house on a hot afternoon, can point to very different causes in each.
Older single-family homes
Many mid-century houses were built without central air, so the cooling was added later. That often means a condenser tucked into a narrow side yard, refrigerant lines run along the exterior, and ducts that were originally sized for a furnace alone. When we repair these systems we check airflow as carefully as the electrical parts, because undersized or leaky ducts can make a healthy compressor look like a failing one.
Newer townhomes
Townhomes usually have a matched system from the start, but the equipment is packed tightly: a condenser on a small patio, a balcony, or a shared pad, and an air handler in a garage or hall closet. Poor clearance around the outdoor unit, a condensate line that drains into a hard-to-reach spot, and HOA access rules are the details that shape these calls. Let us know about any HOA requirements when you book so the visit goes smoothly.
Common AC problems we repair
- Failed capacitors and contactors. The outdoor unit hums or clicks but the fan and compressor never start.
- Refrigerant leaks. Low charge means a leak somewhere. Our EPA Universal certified technicians find and repair it rather than simply adding refrigerant.
- Frozen evaporator coils. Usually caused by a clogged filter, a blocked return, or low charge. Ice on the copper line at the outdoor unit is the giveaway.
- Clogged condensate drains. Water around the indoor unit, or a safety switch that shuts the system off.
- Fan motor and blower faults. Weak airflow at the registers even though the outdoor unit runs.
- Thermostat and control wiring issues. Especially common after a thermostat swap or a remodel.
You can read more about our general approach on our residential HVAC repair services page.
A few checks before you call
Some no-cooling calls turn out to be simple. Confirm the thermostat is set to Cool and below room temperature, replace its batteries if it has them, check the breaker for the outdoor unit, and look at the air filter. If the filter is gray and matted, change it and give the system time to recover. Our AC maintenance tips for Mountain View residents walk through more homeowner checks. If none of that helps, turn the system off so a small problem does not become a burned-out compressor, and call us.
How Mountain View's utilities fit in
Mountain View homes get their electricity from Silicon Valley Clean Energy (SVCE), with PG&E delivering it over its lines, and PG&E also supplies natural gas. For a repair visit that mostly matters in two situations. If your whole block has lost power, that is a PG&E delivery issue, not an AC fault. And if your AC shares an air handler with a gas furnace, any smell of gas changes the plan entirely.
Repair or replace?
We repair first whenever a repair makes sense, and we tell you plainly when it does not. Very old systems that still run on R-22, systems with a failed compressor and a leaking coil at the same time, or a unit that has needed several major repairs are the usual cases where replacement deserves a look. Our technicians are trained on the newer low-GWP refrigerants (R-32, R-454B and R-290) used in current equipment.
If you are weighing replacement, Mountain View keeps the paperwork short: its Same-Day (Express) building permits cover AC unit replacements and all-electric heat pump HVAC installs, issued online without plans when the project meets code (source). And if you currently heat with a gas furnace, SVCE offers a $2,000 rebate for switching to a heat pump system ($3,000 for income-qualified households), which must be applied for before installation (source). Our AC and heat pump installation in Mountain View page covers that path in detail.
What comes with every repair
- California C-20 (HVAC) and C-38 (refrigeration) licensed company
- EPA Universal certified technicians
- A 1-year parts and labor warranty on every job
- 24/7 emergency service when a failure cannot wait; see our emergency HVAC repair page
- Experience with Daikin, Amana, Goodman, York, Trane and Carrier equipment
For a sense of typical repair costs in the area, our AC repair cost guide breaks down the common jobs. If you want to compare options, our list of HVAC companies in Mountain View includes other local contractors too. When the weather turns, your furnace gets the same attention: see furnace repair in Mountain View, or head back to our Mountain View HVAC services overview.
Schedule AC repair in Mountain View
Frequently asked questions
Do you repair AC systems in Mountain View townhomes?
Yes. We work on split systems and heat pumps in townhomes and condos as well as single-family houses. Tell us about any HOA access rules or rooftop equipment when you book so the technician arrives prepared.
My older Mountain View house had AC added later. Does that affect repairs?
It can. Retrofitted systems often run on ductwork first sized for heating only, so we check airflow and duct condition alongside the electrical and refrigerant side of the system before recommending a repair.
Can you just add refrigerant to get my AC cooling again?
Adding refrigerant without finding the leak only delays the next failure. Our EPA Universal certified technicians locate and repair the leak, then charge the system correctly.
Will I need a permit if my AC has to be replaced instead of repaired?
Replacing an AC unit in Mountain View requires a permit, but the city's Same-Day (Express) permit covers AC unit replacements and is issued online without plans when the project meets code. We handle the permit as part of the job.
Is there a rebate for AC repair in Mountain View?
SVCE's rebates apply to replacing a gas furnace or electric resistance heat with a heat pump system, not to repairs. If your system is near the end of its life, ask us about the rebate before you decide.
More in Mountain View
Or start from our Mountain View HVAC & refrigeration overview.
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