Right Away Heating and Air Right Away Heating and Air Tests Before Replacing
A Right Away tech checking connections at the indoor unit.
Thermostat Replacement Near You for Blank Screens, Wrong Readings and Systems That Won't Turn On or Shut Off
Right Away Heating and Air Tests Before Replacing
Updated November 2026
Right Away Heating and Air handles thermostat replacement near you after we confirm the thermostat is the problem. A blank screen can be a tripped float switch or a blown fuse, and a system that won't start can be wiring or a board. We test first so you don't buy a thermostat you didn't need.
We provide thermostat replacement in Ladson, SC and across the Charleston area from one local shop.
Thermostat replacement typically runs $150-$400+, and smart thermostat upgrades run $250-$600+. Take $50 off any repair. Call 843-996-8904.
- American Standard Customer Care Dealer
- SC License CLM.119013
- 20+ Years Lowcountry HVAC
- $50 Off Any Repair
- After Hours Service
Editor view: the real Duda form sits in its own block and moves here on Preview and the live site.
$50 off any repair is applied to your ticket automatically.
Ladson, SC 29456
Is It the Thermostat or Something Else?
Test the Circuit
A system that won't respond may have a bad thermostat, but it could also be a tripped float switch, a blown control fuse, a damaged wire or a failed board. Testing the circuit tells them apart.
| Symptom | Could Be the Thermostat | Could Also Be |
|---|---|---|
| Blank screen | Yes | Dead batteries, float switch, blown fuse |
| Won't turn on | Yes | Wiring, board, breaker |
| Won't shut off | Yes | Stuck relay, shorted wire |
| Wrong temperature | Yes, bad sensor | Bad location near sun or vents |
| Heat when calling for cool | Wrong O/B setting | Reversing valve problem |
Test the Circuit Written prices, $50 off any repair and free second opinions.
How Much Does Thermostat Replacement Cost Near You?
$150-$400+ Installed
Thermostat replacement near you typically costs $150-$400+ for a standard or programmable thermostat and $250-$600+ for a smart thermostat. Wiring repairs or relocation add to the price.
| Thermostat Job | Typical Lowcountry Price Range |
|---|---|
| Standard or programmable thermostat | $150-$400+ |
| Smart thermostat | $250-$600+ |
| Wiring repair | $100-$285+ |
| Thermostat relocation | $200-$500+ |
Prices are typical Lowcountry ranges for planning. Your written estimate is the final word.
Should I Upgrade to a Smart Thermostat?
Upgrading to a smart thermostat makes sense if you want app control, schedules and energy reports. A basic programmable thermostat works fine if you just want reliability.
- Smart: app control, away mode, energy reports.
- Programmable: simple schedules, lower cost.
- Basic: one setting, fewest features.
$150-$400+ Installed Written prices, $50 off any repair and free second opinions.
Thermostat Replacement for Heat Pump Systems
Match the System
Thermostat replacement on a heat pump needs a thermostat built for heat pumps, with the O/B wire set right and aux heat staging configured. A plain AC thermostat won't run a heat pump correctly.
- Heat pump compatible model.
- O/B reversing valve setting matched to the brand.
- Aux heat and emergency heat wired.
- Aux heat lockout set for Lowcountry winters.
- Every mode tested before we leave.
Match the System Written prices, $50 off any repair and free second opinions.
Why Thermostat Location Matters So Much
Bad Spots Cost Money
Thermostat location matters because the thermostat only knows the temperature where it hangs. A thermostat in the sun or above a vent makes the whole house uncomfortable.
| Location Problem | Result |
|---|---|
| Sun on the thermostat | AC overcools the house |
| Above a supply vent | Short cycling |
| Near the kitchen | Runs AC while cooking |
| Exterior wall | Swings with outside temperature |
Bad Spots Cost Money Written prices, $50 off any repair and free second opinions.
Thermostat Replacement Specials and Savings
$50 Off Any Repair
Thermostat replacement from Right Away Heating and Air qualifies for $50 off any repair, and Comfort Club members get thermostat checks at every tune-up.
| Offer | What You Get |
|---|---|
| $50 Off Any HVAC Repair | Applies to thermostat replacement |
| Comfort Club | Thermostat checks, 10% off repairs |
Restrictions apply.
Our Ladson Office and the Towns We Cover for Thermostat replacement
One Local Team, 20 Towns
Our thermostat replacement techs work out of the Ladson office, which puts them a short drive from most homes in Charleston, Berkeley and Dorchester counties.
Right Away Heating and Air in Ladson, SC
Right Away Heating and Air in Ladson, SC puts thermostat replacement techs close to I-26 and US-78, so they can reach Berkeley, Charleston and Dorchester county homes quickly.
Communities Where We Provide Thermostat replacement
| Area | Communities |
|---|---|
| Closest to Ladson | Summerville, Goose Creek, North Charleston, Hanahan |
| Berkeley County | Moncks Corner, Daniel Island |
| Charleston County | West Ashley, Mount Pleasant, Awendaw, Hollywood, Ravenel, Meggett |
| Sea islands and beaches | James Island, Sullivan's Island, Isle of Palms, Johns Island, Kiawah Island, Yonges Island, Seabrook Island, Edisto Island |
One Local Team, 20 Towns Written prices, $50 off any repair and free second opinions.
Frequently Asked Questions About Thermostat Replacement
Quick Answers
How Do I Know My Thermostat Is Bad?
If batteries, breakers and the float switch are fine and the system still won't respond, the thermostat may have failed. We test it to be sure.
How Long Does Thermostat Replacement Take?
Usually under an hour.
Can I Replace My Thermostat Myself?
You can on simple systems. Heat pumps are trickier because of O/B and aux settings.
Will Any Thermostat Work With My System?
No. Heat pumps, multi-stage systems and some furnaces need compatible models.
Do You Carry Thermostats on the Van?
Yes, common models.
Do You Offer After-Hours Service?
Yes. Call 843-996-8904.
Reviewed by Blake Miller, Owner, Right Away Heating and Air
Book Thermostat Replacement Near You With Right Away Heating and Air
Tested, Then Replaced
Right Away Heating and Air will find out what's wrong and replace only what's needed. Call 843-996-8904.
9565 William Aiken Ave, Suite 104, Ladson, SC 29456
