Best Heat Pump Replacement Companies in Hattiesburg, MS
Heat Pump Replacement in Hattiesburg: sizing + authorization
A replacement or conversion is bid on Manual J load calculation, manufacturer authorization, and matched-system commissioning — oversizing is the #1 cause of comfort complaints. Here is what each of the 1 contractor below publishes: Verify your state's HVAC contractor license through the state licensing board before paying a deposit.
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Typical Heat Pump Replacement costs in Hattiesburg, MS (2026)
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Estimated ranges for Hattiesburg, MS. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| Ducted air-source heat pump + air handler, full system (installed) | $5,700–$11,350 |
| Air handler replacement (paired with heat pump) | $1,050–$2,500 |
| Ductwork modification (resize / re-balance per Manual D) | $425–$1,550 |
How long does a typical Heat Pump Installation take in Hattiesburg, and what licensing matters?
- Can I replace my gas furnace with a heat pump?
- Yes — a heat pump both heats and cools, so it can fully replace a gas furnace. In colder areas a dual-fuel setup keeps the furnace as backup for the coldest days. Either way, insist on a Manual J load calculation; conversions can need duct resizing or an electrical upgrade.
- When is replacing an old heat pump better than repairing it?
- If it's past 12–15 years, still uses phased-out R-410A refrigerant, needs a compressor, or the repair bill approaches a third of replacement cost, replacing usually wins. A reputable contractor compares both paths before recommending.
- How long does a standard heat pump replacement usually take in Hattiesburg?
- Typical replacements take one to three days depending on system complexity and duct work. Simple like-for-like swaps often finish in a day. More involved jobs that require duct modification, refrigerant line routing, or electrical panel work can extend to multiple days. Confirm the installer’s estimated timeline on the written scope.
- How do I find a qualified heat pump replacement contractor in Hattiesburg without relying on a single review site?
- Look for contractors who provide written estimates, list licensing and bonding on estimates, and describe equipment brands and warranties. Ask for recent local references and evidence of experience with inverter or variable-speed systems to address Hattiesburg's humidity. Compare at least three vetted bids before deciding.
- How do I get a quote from these heat pump installation companies?
- Submit one request on this page and we send it to the vetted heat pump installation pros in Hattiesburg, MS listed here. They send quotes back — no obligation.