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Houses in Simi Valley
Long uniform tracts, ducts in attics that get genuinely hot, and hot days with cool nights that hide a badly performing system for most of the year.
An hour and a half, and a sheet you keep
Everything found and identified, rating plates photographed, model and serial numbers recorded, manufacture date read off the serial. Then the readings: static pressure across the filter and the coil, total airflow, refrigerant charge against the manufacturer’s target for that model at that condition, temperature split, and the airflow at the registers in whichever room is the problem.
If there is a gas furnace, a combustion analysis and a heat exchanger inspection happen on that visit whatever you rang about, and where there is a gas appliance and no working carbon monoxide alarm we fit one.
The sheet commits you to nothing. It is what makes a second opinion possible — ours or anybody else’s.
Four findings that account for most of it
The ducts are in the hottest part of the house
An uninsulated attic here is far hotter than the air outside on a summer afternoon, and every foot of duct crossing it loses cooling before the air reaches a room. Measured leakage on older runs is routinely a large fraction of total airflow. Sealing and insulating is unglamorous and regularly worth more than new equipment.
The system is bigger than the house needs
Oversizing is the fault we measure most and the one mentioned least. A unit that is too large satisfies the thermostat quickly, shuts off, and never runs long enough to move the air around the house. A room-by-room load calculation settles it in an afternoon.
One return, five rooms, all the doors shut
Air that goes into a room has to get back out. A single central return with closed bedroom doors forces the air through the gap under the door; pressure builds and the airflow to that room collapses. Transfer grilles or a second return are cheap and are frequently the whole fix.
A whole street arriving at the same point
Where a tract was built in one stretch, the equipment is the same age and reaches the end of its life in the same few years. That is not a reason to replace early. It is a reason to have measurements on record before the first hot week, so that a failure becomes a decision rather than whoever can come out that day.
What we do in houses
- Diagnosis and repair
No cooling, no heat, short cycling, noise, a room that never matches. Measured, costed and repaired where a repair is right.
- Load calculation and replacement
Room by room, on the house as it stands now rather than on the size of the unit coming out.
- Attic duct sealing and insulation
Leakage measured, joints sealed, runs insulated, registers balanced against a target rather than by hand on a vent.
- Ductless for additions and conversions
Sized for the room it serves, with the line set routed where it can be serviced.
- Gas appliance safety
Combustion analysis, heat exchanger inspection, flue checked as installed, carbon monoxide alarms fitted where there is none.
- Annual service
The same readings every year on the same sheet, so a slow change is visible before the first hot week turns it into an emergency.
Three things we will not do in your house
Call it an emergency when it is not
No cooling on a hot night with a frail person in the house is urgent. No cooling in a house where everybody is fine is Tuesday morning, and we will tell you that on the telephone rather than charge you to hear it at ten at night.
Condemn a heat exchanger without showing you
It is a real reason to shut a furnace down and the most abused finding in this trade. If we call it, you get the camera image or the combustion reading, and you are welcome to get a second opinion before spending anything.
Take on the roof or the panel
Water arriving at an attic unit is frequently a roofing problem with a heating symptom, and a heat pump that needs more capacity needs a licensed electrician. We will identify both, in writing, and hand them over.
Tell us what the house is doing
Which room, what time of day, and how long it has been like that. 1176 Roadrunner Way, Simi Valley. Monday to Friday, 7am to 4pm.