Book Now Call (843) 608-1689
Open 7 Days a Week · Mon–Fri 8–8, Sat–Sun 8–6
5.0 Rating
A+ BBB Accredited

Reliable Heating Repair in Charleston, SC

Furnaces and heat pumps fixed right — because Lowcountry cold snaps give little warning.

Heating

Expert Heating Repair for Lowcountry Homes

Charleston winters are mild until they are not. When a January cold snap rolls through the Lowcountry, the heating system you have not thought about since March needs to work on the first try. Alexander Heating & Cooling repairs furnaces and heat pumps across the Charleston area, seven days a week.

Open 7 days a week

Heat failures do not respect business hours. We answer weekdays until 8 PM and weekends until 6.

Heat pumps and furnaces

Most Lowcountry homes heat with a heat pump — we work on those every day, along with gas and electric furnaces.

Honest diagnosis

You get the real cause and a clear price before any work begins. No mystery line items.

Open 7 Days

Need Heating Repair Soon?

Call (843) 608-1689 any day of the week — or send the form and we will get right back to you. Honest pricing, clear answers, and a crew your neighbors already rated 5.0 stars.

Get Your Free Estimate

Open 7 days a week — we get back to you fast.

How It Works

Three Simple Steps

1

Call or Book Online

Give us a call at (843) 608-1689 or fill out the form. We will ask a few questions about what is going on.

2

We Diagnose & Quote

Our technician finds the real problem and gives you clear pricing before any work starts.

3

We Do It Right

We finish the job, clean up after ourselves, and test everything before we leave. Done means done.

Warning Signs Your Heat Is Struggling

Rooms that never quite warm up. A system that runs in short bursts, stopping and starting. A burning smell that lingers past the first hour of the season. Bills creeping up while comfort goes down. These are all signs your heating system is working too hard — and a look now costs far less than a failure on the coldest night of the year.

A Repair Today Beats an Emergency Later

Heat pumps in particular fail in slow motion: a weak capacitor, a dirty coil, or a low refrigerant charge makes the system lean on its backup heat strips, which quietly doubles your electric bill before anything visibly breaks. Catching that early is the cheapest heating repair there is. If the system truly is done, we will tell you straight and walk you through replacement options.

Ready to Schedule Heating Repair?

Call (843) 608-1689 or book online — open 7 days a week across Charleston and the Lowcountry.

FAQ

Frequently Asked Questions

Not always. Heat pumps put out air that is warm rather than hot, especially on cold mornings. But if the house never reaches the set temperature or the backup heat runs constantly, something is wrong — call us and we will check it.
A faint dusty smell for the first hour of the season is normal — dust burning off the heat exchanger or strips. A smell that persists, or anything electrical, means shut the system off and call.
If it is old and the repair is major, replacement usually wins the math. If the fix is small, repair it and move on. We give you both numbers honestly and let you decide.
Yes — gas furnaces, electric furnaces, and heat pumps. Whatever heats your home, we can diagnose and repair it.

Service Areas

Areas We Serve

Proudly serving Charleston and the Lowcountry, from Daniel Island to the beaches and out to Huger.

Get in Touch

Request a Free Estimate