The usual suspects
A thermostat in the wrong spot
Near a draft, a sunny wall or a supply vent, it reads its microclimate — not your house.
Sensor drift
Ageing stats read a degree or three off; the house obeys the wrong number faithfully.
A system falling short
The stat is honest — the equipment can’t close the gap. See the runs-but-cold guides.
Aggressive eco/away features
Smart stats quietly capping or ramping — comfort traded without asking you.
Stop negotiating with the wall.
One visit measures both sides — what the stat reads and what the system delivers. Honest verdict, upfront price.
Book My Same-Day Visit60 seconds online · or call (206) 486-6373
Worth trying first (5 minutes, free)
- 1
Put a cheap thermometer next to the stat: if they disagree by 2°F+, you’ve found it.
- 2
Audit smart features: eco modes, away detection, schedules — turn them off for a test day.
- 3
Note WHERE it’s cold: everywhere = system; near the stat fine but rooms cold = delivery/placement.
Still not working? Then it’s a technician job — and the sooner it’s booked, the sooner the house is comfortable again. Book the visit →
Stop and book a pro if…
- The stat and a thermometer beside it disagree significantly.
- The system runs constantly and still stalls — capacity problem.
- Comfort collapsed right after a new thermostat — configuration.
- Rooms vary wildly while the stat claims victory — airflow/ducts.
Why homeowners hand it to us
- You approve the price first. Upfront quote before a single screw turns.
- Same-day service. Book in a minute, hear from a tech within 1 business hour.
- 500+ jobs done by 4.9★ rated, professional technicians.
- Fixed right, guaranteed. If it’s not right, we make it right.
Quick answers
Can a thermostat be recalibrated?
Some allow an offset adjustment; drifted older units are usually better replaced. The visit tells which, and what the honest fix costs, before you commit.
Why does it stall at the same number every time?
A capacity shortfall stalls where heat loss equals heat output — the balance point. Placement and calibration errors stall wherever the misreading sits. Same couch experience, different repair.
Whose fault is it after my DIY smart-stat install?
No judgment — heat pump O/B settings and missing C-wires trip a lot of people. Config checks are quick, and we leave it set up right.
Done guessing?
You bought a heating system, not a suggestion box. Book the diagnosis.
Book My Same-Day Visit60 seconds online · or call (206) 486-6373
More: all problems · heating service · AC service · 24/7 emergency