Heating & Air Cost in Charleston SC (2026)
Heating & air price examples checked 2026-09-12 against provider pages and publisher guides. Publication dates are shown where verified; older estimates remain labeled as historical references. Southeastern Renovation is a licensed SC general contractor (CLG.127339); the trade work is performed by licensed subcontractors.
By Jared McCarley, founder of Southeastern Renovation and the SC-licensed general contractor (CLG.127339). Page updated October 13, 2026; each price is dated beside its source.
Quick answer: Budget separately for replacement, repair and maintenance. One Hour’s December 2025 HVAC size examples are $3,000–$4,000 for 1.5–2 tons and $4,500–$6,000 for 3–4 tons; confirm the equipment and installation scope. Coastal Carolina Comfort lists full replacement at $7,000–$14,000 and capacitor repair at $150–$300. These are attributed provider examples, not Southeastern Renovation quotes. The table also identifies older ductwork estimates and a publisher model rather than treating every figure as a current local offer.
How much does heating and air work cost in Charleston?
| Job | Published range | Source · date |
|---|---|---|
| HVAC size example, 1.5–2 ton | $3,000 – $4,000 | One Hour Heating & Air, Charleston · updated 2025-12-05; confirm equipment and installation inclusions |
| HVAC size example, 3–4 ton | $4,500 – $6,000 | One Hour Heating & Air, Charleston · updated 2025-12-05; confirm equipment and installation inclusions |
| Full system replacement | $7,000 – $14,000 | Coastal Carolina Comfort, Charleston cost page · reviewed 2026-09-12 |
| Full system, 2,000 sq ft — publisher model | $8,000 – $12,000 | HVAC Project Cost, Charleston model · updated 2026-07-16; midrange equipment and standard installation |
| Capacitor replacement | $150 – $300 | Coastal Carolina Comfort · 2026 SC repair guide; reviewed 2026-09-12 |
| Refrigerant recharge with leak detection; leak repair not specified | $250 – $800 | Coastal Carolina Comfort · 2026 SC repair guide; reviewed 2026-09-12 |
| Blower motor | $400 – $900 | Coastal Carolina Comfort · 2026 SC repair guide; reviewed 2026-09-12 |
| Compressor | $1,500 – $3,500 | Coastal Carolina Comfort · 2026 SC repair guide; reviewed 2026-09-12 |
| Advertised diagnostic visit — Acute | $69 | Acute Heating & Cooling, North Charleston · reviewed 2026-09-12; confirm terms |
| Published diagnostic visit — Coastal Carolina Comfort | $110 | Charleston repair cost page · reviewed 2026-09-12; see differing fee information below |
| Duct cleaning, up to 40 vents — historical publisher estimate | $300 – $1,600 | HomeBlue, Charleston · 2024-05-30; minimum visit charges may apply |
| Ductwork installation/replacement added to HVAC installation | $6,500 – $12,000 | Carney & Son SC guide · 2024-07-10; historical add-on estimate |
| Comfort Club membership | $249 | Coastal Carolina Comfort · reviewed 2026-09-12; two annual tune-ups; confirm renewal and coverage |
These figures describe different jobs and source assumptions. Coastal Carolina Comfort’s SC repair guide says its repair ranges include diagnosis, parts and labor; recharge with leak detection does not establish the cost of repairing a leak. Its Charleston page lists a $110 diagnostic visit, while its Comfort Club page describes a regular $249 diagnostic fee outside membership. Confirm the applicable visit price and any repair credit directly before booking. Historical duct estimates and the HVAC Project Cost model are reference points, not current contractor offers.
What changes the price of heating and air work?
How does Southeastern Renovation price heating & air work?
We coordinate scope, schedule and required permit and inspection responsibilities as the general contractor. Licensed trade subcontractors handle work requiring their trade credentials. Fixed-price and cost-plus contracts are both available depending on scope; confirm the agreed work, allowances and exclusions in writing. Our projects include a 1-year workmanship warranty.
Who can do this work in Charleston?
Southeastern Renovation coordinates this work in Charleston as a licensed SC general contractor (CLG.127339); licensed trade subcontractors perform work that needs their own trade licence. Start with our heating and air division and its AC repair, AC installation pages. Related questions: Why is one room always hotter than the rest?; Water around the air handler or a ceiling stain; Do I need a permit to replace HVAC in West Ashley?. Planning a larger remodel? Every guide is on the cost guide hub.
Get a heating & air estimate Tell us the job and the town · start a scope conversationFrequently asked
How much does heating & air work cost in Charleston Lowcountry? Compare the same scope: replacement, a diagnosed repair and maintenance are separate budgets. The sourced examples above are not interchangeable quotes.
Is this a Southeastern Renovation price? No. It is what local companies and cost guides publish; call for a price on your job.
Who pulls the permit? Permit requirements and the responsible applicant depend on the work and jurisdiction. We identify those responsibilities in the project scope and coordinate required inspections; licensed trade subcontractors handle work requiring their trade credentials.
See also: our heating & air division and the cost guide hub.
Common Questions
How much does heating & air work cost in Charleston Lowcountry?
Budget separately for replacement, repair and maintenance. One Hour’s December 2025 HVAC size examples are $3,000–$4,000 for 1.5–2 tons and $4,500–$6,000 for 3–4 tons; confirm the equipment and installation scope. Coastal Carolina Comfort lists full replacement at $7,000–$14,000 and capacitor repair at $150–$300. These are attributed provider examples, not Southeastern Renovation quotes. The table also identifies older ductwork estimates and a publisher model rather than treating every figure as a current local offer.
What changes a heating & air price in Charleston Lowcountry?
Tonnage, equipment efficiency, duct condition and whether the air handler or furnace is replaced with the condenser affect replacement scope. Confirm sizing and installation inclusions rather than comparing equipment price alone. Repair pricing depends on the diagnosed fault and authorized scope. Ask whether the diagnostic fee is credited; provider policies differ.
Does Southeastern Renovation do the heating & air work itself?
Southeastern Renovation is a licensed South Carolina general contractor (CLG.127339). Heating & Air work is coordinated by us as the general contractor. Licensed trade subcontractors handle work requiring their trade credentials; permit responsibilities depend on the project scope and jurisdiction. Call (843) 718-8177 and we will price your specific job.
Is there a service or dispatch fee?
Ask the provider what the diagnostic visit costs, what it includes and whether any fee is credited when you authorize a repair. Confirm after-hours charges before booking; policies differ by provider.