Nathan Healy
Certified by Nathan Healy
Updated: February 2026
Quality home solutions since 2011
Palmetto serves thousands of customers across 25 states with an over 85% approval rating

01

Benefits of Palmetto Heat Pumps

Say goodbye to clunky old systems and surprise repairs. Palmetto Comfort Plan gives you a brand-new heat pump, installation, and full support, all wrapped into one subscription.

Year round comfort

Year Round Comfort

A high-efficiency heat pump keeps your home cool in summer, warm in winter, and your energy use in check all year long.

Forget the maintenance

Forget the maintenance

With a Comfort Plan subscription, installation and maintenance are fully covered, no surprise bills, no weekend DIY.

Rewards for renewing

Rewards for renewing

Stick with us and earn credits toward your next system upgrade. It’s our way of saying thanks for building a cleaner, comfier future with us.

02

Summerville, SC Heat Pump Load Calculator

Use our calculator below to estimate your home’s heating and cooling needs based on square footage. It uses ACCA-standard design conditions for Summerville, SC: 72°F indoor, 97°F outdoor for cooling, and 24°F for heating. For a precise Manual J load calculation and personalized quote, connect with Palmetto’s team. Get in touch with our team for an official quote.

Step 1 of 3

Home location & size

Your home’s location and size directly impact heating needs.

Step 2 of 3

Home attributes

Step 3 of 3

Additional details

Description of what this means for context.

Estimated Heating Needs

Your home’s location falls within the a climate zone with the average extreme winter falling between 10° – 15° F.

Home Details

Get Started

Recommended equipment capacity

60,000 BTU

5 Tons

Calculated Cooling Mode

102,000 BTU

8.5 Tons

03

Buy it or finance it. Your comfort, your call

There's no wrong way to get cozy. Here's how the options stack up, so you can choose what works best for you.

Cash

Loan

Payment schedule $0 upfront, then monthly subscription Full price upfront $0 upfront, then monthly payment
Term length 10 or 12 years None Variable
End of term options Flexible with 25% renewal term credits to new system No credits to new system No credits to new system
Maintenance included
Eligible for incentives
Payment schedule $0 upfront, then monthly subscription
Term length 10 or 12 years
End of term options Flexible with 25% renewal term credits to new system
Maintenance included
Eligible for incentives

Cash

Payment schedule Full price upfront
Term length None
End of term options No credits to new system
Maintenance included
Eligible for incentives

Loan

Payment schedule $0 upfront, then monthly payment
Term length Variable
End of term options No credits to new system
Maintenance included
Eligible for incentives

Local Incentives

Heat Pump Financing in Summerville

While South Carolina's state heat pump rebate programs (HOMES and HEAR) are expected to launch in 2026, they are not yet active. However, homeowners in Summerville, SC can take advantage of the federal IRA tax credit of up to $2,000 for qualifying heat pump installations. Palmetto's Comfort Plan lease offers $0 upfront cost as an alternative way to access heat pump technology without waiting for state programs to become available.

Federal IRA Tax Credit

Up to $2,000

The Inflation Reduction Act provides a federal tax credit of up to $2,000 for qualifying heat pump installations through 2032.

Eligibility: Available to homeowners who purchase and install a qualifying heat pump system. Claimed on your annual federal tax return.

Learn more →

Palmetto Comfort Plan: $0 Upfront Heat Pump Leasing

Even without local rebates, Palmetto's Comfort Plan makes upgrading easy. You get a high-efficiency heat pump installed with $0 upfront cost, predictable monthly payments, and all maintenance and repairs included for the life of the plan.

Incentive information is based on publicly available data as of 2026 and may change. Contact program administrators to verify current availability and eligibility requirements.

04

Climate Zones

Summerville sits in IECC Climate Zone 9, which means mild winters (rarely dipping below 24°F) and hot, humid summers (reaching up to 97°F). This climate profile matters because your heat pump needs to handle more cooling than heating—and it needs to do both efficiently. At Palmetto, we've sized and installed systems throughout the Lowcountry, so we know exactly what works here. Enter your ZIP code below to confirm your zone, or explore other climate zones to see how Summerville compares.

US Climate Zone Map
Your location

Climate Zone 1

Climate zone 1 is not typically seen within the United States outside of Alaska. It represents the coldest climates on the planet.

Climate Zone 1A

Avg. extreme winters: -60° to -55° F

Climate Zone 1B

Avg. extreme winters: -55° to -50° F

05

Summerville Electricity Prices

Understanding electricity costs in Summerville helps you make smarter decisions about home comfort and long-term savings.

South Carolina electricity rates have climbed from 12.9 cents per kWh in 2021 to 14.1 cents in 2024—a 9% increase. For Summerville homeowners, that means higher bills for the same heating and cooling.

Heat pumps use 2-3 times less electricity than traditional HVAC systems to deliver the same comfort. That efficiency means lower energy consumption even as rates rise, helping offset the impact of increasing costs.

As electricity rates continue their upward trend, that efficiency gap becomes more valuable each year. A heat pump's lower energy consumption protects your budget today and positions you better for whatever rates bring tomorrow.

Price of Energy: South Carolina vs National Average

10¢
20¢
30¢
13.7¢
12.9¢
15.0¢
13.6¢
16.0¢
13.7¢
16.5¢
14.1¢
2021
2022
2023
2024
US Average
South Carolina

Summerville Area Utility Providers

Summerville residents are served by two main utility providers: Berkeley Electric and Santee Cooper. According to 2023 data, Berkeley Electric's rates averaged 14.1¢ per kWh, while Santee Cooper came in at 11.4¢ per kWh.

Both utilities charge less than the 2023 national average of 16.0¢ per kWh. Santee Cooper's particularly competitive rates reflect its status as a public power provider, while Berkeley Electric's cooperative structure also helps keep costs below national levels.

These below-average electricity rates make Summerville an ideal location for heat pumps. Since heat pumps use electricity more efficiently than traditional HVAC systems—often reducing energy consumption by 30-50%—you'll maximize savings even further with the area's already competitive rates.

Summerville Utilities Electricity Rates

Berkeley Electric
14.10¢
-12%
Santee Cooper
11.40¢
-29%
SC Average
13.70¢
-14%
US Average
16.0¢
06

Palmetto Reviews

Ready to start saving with a heat pump?

Speak with a Palmetto heating & cooling expert to find out exactly how much you can save.

Get a Free Quote
Palmetto mobile app
07

Let our smart tools do the heavy lifting.

Get personalized tips, usage insights, project tracking, and that daily satisfaction of making your energy work smarter with the Palmetto mobile app.

  • Rewards for smarter energy usage
  • Energy insights & Dashboard
  • Personalized Savings Tools
  • Whole Home Energy Management
  • Support Whenever You Need It
Download the App
08

Repair versus replace

When a heat pump is in need of repair it is worth considering whether a replacement would be a better investment. While each case is unique, we generally recommend investing in a new unit when repairs exceed $5,000.

$5,000
Recommended repair threshold

A heat pump's lifetime is impacted by a number of factors including environment, use and the quality of the unit. It's important to choose the right unit for your climate zone and home's unique attributes.

When you are in need of repair, we recommend choosing a service provider that is an expert in the heat pump brand you have installed, and checking online reviews to ensure you are investing in the right level of service.

Potential repair Cost range Description
Capacitor Replacement $150 - $400 Common issue when unit struggles to start or makes a humming noise. Capacitors store the electrical energy needed to start the compressor and fan motors.
Refrigerant Recharge $250 - $750 Needed when the system loses cooling or heating efficiency due to low refrigerant levels. Includes leak detection, repair of minor leaks, and recharging the system to the manufacturer-specified level.
Reversing Valve Replacement $450 - $900 Required when the unit cannot switch between heating and cooling modes. The reversing valve directs refrigerant flow and is unique to heat pump systems.
Compressor Replacement $1,500 - $3,000 Major repair needed when the unit fails to heat or cool entirely. The compressor is the heart of the system, circulating refrigerant between the indoor and outdoor coils.
Evaporator/Condenser Coil Replacement $1,200 - $2,800 Replacement needed when coils develop leaks or corrosion that cannot be economically repaired. Coil damage reduces heat transfer efficiency and can cause refrigerant loss.
Control Board Replacement $500 - $1,200 Required when the system has electrical failures or erratic behavior. The control board manages all system operations including defrost cycles, fan speeds, and compressor staging.
Full System Replacement $4,500 - $8,000+ When repairs exceed the value of the unit or multiple major components fail simultaneously. Includes removal of the old system and installation of a new heat pump with updated refrigerant lines and electrical connections.

Ready to start saving with a heat pump?

Speak with a Palmetto heating & cooling expert to find out exactly how much you can save.

Get a Free Quote
09

Frequently Asked Questions

Yes, heat pumps make excellent sense in Summerville. The area's mild winters (with design temperatures around 24°F) and hot summers (reaching 97°F) create ideal conditions for heat pump efficiency. These systems excel in Climate Zone 9, providing both heating and cooling while typically using less energy than traditional HVAC systems at South Carolina's current electricity rate of 14.1¢ per kWh.

Summerville homeowners can access heat pumps through two flexible options: a Comfort Plan with $0 upfront and included maintenance, or direct purchase with potential federal tax credits up to $2,000 under the Inflation Reduction Act. The mild climate means your heat pump won't strain during extreme cold, maximizing efficiency and comfort year-round while potentially lowering your energy bills.

Heat pumps perform exceptionally well in Summerville's Climate Zone 9, where winter temperatures rarely drop below 24°F and summers reach around 97°F. This mild climate is ideal for heat pump efficiency, as modern systems can effectively heat and cool your home year-round while using significantly less energy than traditional HVAC systems. With South Carolina's electricity rate at 14.1¢ per kWh, homeowners typically see substantial savings on their monthly utility bills.

Because Summerville experiences relatively mild winters, heat pumps can operate at peak efficiency throughout the heating season without requiring backup heat sources. The moderate climate means your system won't have to work as hard as it would in colder regions, extending equipment lifespan and maximizing your return on investment. Whether you choose Palmetto's Comfort Plan with no upfront costs and included maintenance, or direct purchase to access federal tax credits up to $2,000, you'll benefit from efficient performance suited to the local climate.

The choice between leasing and buying a heat pump in Summerville depends on your financial priorities and preferences. Leasing through Palmetto's Comfort Plan requires $0 upfront and includes all maintenance and repairs, making it ideal if you want predictable costs without maintenance concerns. Buying outright means you own the equipment and may qualify for up to $2,000 in federal tax credits under the Inflation Reduction Act, plus potential local rebates.

Consider your budget and long-term plans when deciding. With Summerville's climate requiring both heating and cooling throughout the year, the Comfort Plan's included maintenance can provide peace of mind as your system works year-round. If you prefer ownership and can benefit from available tax incentives, direct purchase may offer better long-term value. Both options deliver efficient heating and cooling while helping you manage South Carolina's 14.1¢ per kWh electricity costs.

Heat pump costs in Summerville typically range from $5,000 to $15,000 for a complete installation, depending on your home's size, existing ductwork, and the system's efficiency rating. Summerville's Climate Zone 9 conditions—with winter lows around 24°F and summer highs near 97°F—mean you'll need a properly sized system that handles both heating and cooling efficiently.

Palmetto offers two approaches to fit your budget: a Comfort Plan with $0 upfront and predictable monthly payments that include all maintenance and repairs, or direct purchase where you own the equipment outright and may qualify for up to $2,000 in federal tax credits under the Inflation Reduction Act. Both options help Summerville homeowners reduce energy costs with South Carolina's 14.1¢ per kWh electricity rates.

Yes, heat pumps are typically worth it financially in Summerville. Modern heat pumps can reduce heating and cooling costs by 30-50% compared to traditional systems, and with South Carolina's electricity rate at 14.1¢ per kWh, most homeowners see meaningful savings on their monthly energy bills within the first year of operation.

The financial picture becomes even more attractive when you consider available incentives and flexible payment options. Direct purchasers may qualify for up to $2,000 in federal tax credits under the Inflation Reduction Act, plus local rebates. Alternatively, Palmetto's Comfort Plan offers $0 upfront cost with predictable monthly payments and included maintenance, making heat pumps accessible without a large initial investment.

In Summerville, licensed HVAC contractors install heat pumps, including companies like Palmetto that specialize in home energy solutions. Professional installers ensure your system is properly sized for Climate Zone 9 conditions—handling summer temperatures reaching 97°F and winter lows around 24°F—and meets all local building codes and manufacturer specifications.

Palmetto offers heat pump installation through two flexible options: a Comfort Plan with $0 upfront cost and included maintenance, or direct purchase where you own the equipment and may qualify for up to $2,000 in federal tax credits. Choosing an experienced installer ensures your system operates efficiently, helping you manage South Carolina's 14.1¢ per kWh electricity costs while keeping your home comfortable year-round.

A heat pump is actually a type of HVAC system. HVAC stands for Heating, Ventilation, and Air Conditioning—it's an umbrella term for any equipment that controls your home's temperature and air quality. Heat pumps are unique because they provide both heating and cooling in one efficient unit, transferring heat rather than generating it through combustion.

In Summerville's Climate Zone 9, where winter temperatures can drop to 24°F and summers reach 97°F, heat pumps handle year-round comfort efficiently. With electricity at 14.1¢ per kWh in South Carolina, many homeowners choose heat pumps for their lower operating costs compared to traditional HVAC systems. Palmetto offers flexible options including a Comfort Plan with no upfront costs and included maintenance, or direct purchase with potential federal tax credits up to $2,000.