Heating & cooling
AC & HVAC repair in Lafayette.
Lafayette houses were built without AC because they barely needed it. That is changing, and retrofitting cooling correctly is most of our work here.
Lafayette runs cooler than the Tri-Valley side of the hills. Summer afternoons in 94549 sit in the 80s on days the deeper Tri-Valley pushes into the high 90s, and for decades that was cool enough that builders skipped air conditioning entirely. A big share of the 1950s through 70s ranches in Burton Valley and the neighborhoods south of Mt. Diablo Boulevard still run a gas furnace with no cooling at all. But the hot runs are getting longer, and the most common Lafayette call we get is no longer a broken AC. It is a request to add one to a house that never had it.
Retrofitting cooling onto a 60-year-old furnace and its original crawlspace ductwork is where these jobs go wrong if someone rushes them. The ducts were sized for heating only, the furnace blower may not move enough air for a coil, and the electrical panel may not have the capacity. We check all three before quoting, because a condenser bolted onto undersized ducts will short-cycle itself to death and never cool the back bedrooms.
The remodeled side of town is different work: Happy Valley and Reliez Valley homes that have been rebuilt with modern multi-zone systems, where the calls are zone boards, actuators, and balancing. We are 25 to 30 minutes from San Ramon via 680 and run Diablo Valley calls on planned routes most days. Diagnostic is $75, credited when you book the repair. EPA Section 608 Universal certified, CSLB #1136642.
Adding AC the right way
There are three honest paths to cooling a Lafayette ranch. If the furnace and ducts are healthy, we add a coil and condenser to the existing system. If the furnace is old anyway, a heat pump replaces it and covers both seasons on one machine, which fits Lafayette's mild winters well. And if the ductwork is the weak link, a multi-head ductless system can skip the crawlspace entirely. The diagnostic tells us which path your house supports: blower capacity, static pressure, duct condition, panel capacity. You get the options priced in writing. See HVAC installation.
Lafayette is in MCE electricity territory, and heat pump retrofits here often qualify for rebates. We work with BayREN, MCE, and PG&E plus manufacturer instant rebates, and we confirm live funding at the estimate.
Crawlspaces, hillsides, and old furnaces
Lafayette HVAC lives underneath the house. The ranches sit on crawlspaces, the hillside homes off Happy Valley Road and Reliez Valley Road stack their mechanicals wherever the slope allowed, and the ducts down there have been taking on rodent damage and disconnections for decades. We crawl them, photograph what we find, and quote duct repair as its own line item so you can see whether the distribution or the equipment is the real problem. Furnace repair on the older equipment is normal work: igniters, inducer motors, gas valves. A cracked heat exchanger is the line we do not repair past, and we show you the crack on camera before talking replacement.
The Happy Valley and Reliez Valley remodels run modern zoned equipment, and we service those systems at the board level, including the Daikin and Mitsubishi inverter equipment we are factory trained on.
What working with us looks like
Written, itemized quote before any work, every time. The $75 diagnostic comes off the bill when you book the repair. We run seven days a week, and Lafayette sits on our regular Diablo Valley route, so windows are dependable. For homeowners keeping older equipment alive deliberately, the maintenance plan keeps a 20-year-old furnace safe and a new retrofit running at its rating.
Common questions, Lafayette.
- My Lafayette house has never had air conditioning. What does it take to add it?
It depends on three things we check at the diagnostic: whether your furnace blower can move enough air for a cooling coil, whether the crawlspace ducts are sized and sealed well enough to carry it, and whether your electrical panel has capacity for a condenser. From there the options are add-on AC, a heat pump conversion, or ductless. You get all viable paths priced in writing, and the $75 visit is credited when you book.
- Is a heat pump enough for Lafayette winters?
Yes. Lafayette winter nights bottom out in the mid 30s, well inside the range where modern heat pumps run efficiently, and the milder summers mean the cooling side is not oversized. For a ranch with an aging furnace and no AC, one heat pump solving both seasons is often the cleanest answer. Lafayette is in MCE territory, so we confirm current rebates at the estimate.
- Can you repair the original furnace in my 1960s Burton Valley house?
Usually, yes. Igniters, inducer motors, flame sensors, and gas valves are normal repairs on that era of equipment. The hard line is a cracked heat exchanger, which we do not repair past, and we show you camera evidence before any replacement conversation. Written quote first, CSLB #1136642.
Heating & cooling