Nathan Healy
Certified by Nathan Healy
Updated: October 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

Rockville, MD Heat Pump Load Calculator

This square-foot calculator approximates heating and cooling needs using 72°F indoors, Rockville’s 92°F cooling and 5°F heating design temperatures. These are ACCA-standard design conditions for Rockville, MD. For an official Manual J load calculation and quote, get in touch 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

Rockville, MD Heat Pump Rebates & Incentives

Local and federal incentive programs can significantly reduce the cost of a new heat pump system. Here are the programs available to Rockville homeowners.

Montgomery County Electrify MC

Up to $2,500

Provides a direct incentive for qualifying heat pump installations through the County’s designated contractor, Elysian Energy. The amount varies by heat pump type.

Eligibility: The residence must be in Montgomery County with individually metered utilities, and the heat pump must replace fossil-fuel heating. Installation must meet the program’s equipment requirements and be completed through Elysian Energy.

Learn more →

Montgomery County Energy Tax Credit

$250

Offers a County property-tax credit for qualifying energy-conservation improvements, including certain heating and cooling equipment. Applications are subject to an annual funding limit and are processed in the order received.

Eligibility: The applicant must own and occupy a single-family home in Montgomery County. A heat pump replacement must substantially increase heating-system efficiency; submit the application and receipts within 12 months of installation.

Learn more →

Pepco Home Performance

Up to $15,000

Offers performance-based rebates for eligible home energy improvements, with a higher project maximum when the work includes switching fossil-fuel equipment to a qualifying electric heat pump. The rebate depends on modeled savings and project cost.

Eligibility: The home must have an active Pepco residential account and meet the program’s residence requirements. A Home Energy Assessment, required weatherization work, and an approved contractor reservation are required; qualifying work must include a fossil-fuel-to-electric conversion.

Learn more →

Pepco HVAC Efficiency

Up to $1,500

Provides rebates for qualifying high-efficiency heat pump equipment installed by participating contractors. Pepco advertises up to $1,500 in HVAC rebates, with higher incentives for qualifying fuel-switching installations during the 2026 limited-time offer.

Eligibility: Available to Pepco residential customers in Maryland who install eligible equipment through a participating contractor. For the 2026 limited-time electrification offer, qualifying air-source heat pumps must be installed May 15 through November 30, 2026.

Learn more →

Pepco Heat Pump Water Heater

Up to $1,600

Offers a rebate for an ENERGY STAR-certified heat pump water heater through Pepco’s residential appliance rebate program.

Eligibility: Available to eligible Pepco residential customers purchasing a qualifying ENERGY STAR-certified unit. Homeowners can apply online or by mail, and instant rebates are available at select retailers.

Learn more →

Rockville-area homeowners may qualify for Pepco rebates, Montgomery County’s Electrify MC incentives, and a County property-tax credit; amounts and eligibility depend on the home, equipment, utility, and contractor. Palmetto can help homeowners identify eligible programs, navigate applications, and maximize available savings.

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

Rockville is in USDA Hardiness Zone 7, with freezing winter stretches and hot, humid summers. For heat pump planning, design temperatures of 5°F for heating and 92°F for cooling show the conditions a system may need to handle. Proper sizing and selection support comfort in both seasons. Palmetto understands Rockville’s climate and can recommend options. Explore other zones below or enter your ZIP code to confirm your zone.

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

Rockville Electricity Prices

Electricity prices have climbed in Maryland, making each kilowatt-hour count for Rockville homeowners.

Maryland’s average electricity price rose from 13.1 cents per kWh in 2021 to 17.9 cents in 2024—about 37%, and above the 2024 U.S. average of 16.5 cents.

Because they move heat rather than create it, heat pumps can provide two to three times as much heating or cooling per unit of electricity as many traditional systems.

Over the long term, using less electricity for year-round comfort can help limit the impact of rising rates, though actual bills depend on your home, usage, and energy prices.

Price of Energy: Maryland vs National Average

0¢
10¢
20¢
30¢
13.7¢
13.1¢
15.0¢
14.5¢
16.0¢
16.6¢
16.5¢
17.9¢
2021
2022
2023
2024
US Average
Maryland

Rockville Area Utility Providers

For Rockville homes served by Pepco, electricity cost 18.2¢ per kilowatt-hour in 2023. The chart compares this latest available utility data with 2023 state and national averages; 2024 figures are not yet available.

Pepco’s 2023 rate was 2.2¢ above the national average of 16.0¢ and 1.6¢ above Maryland’s 16.60¢ average. Electricity prices can reflect power supply and grid delivery costs, but these figures don’t identify Pepco’s specific cost drivers.

A higher electricity rate doesn’t tell the whole heating-cost story. Heat pumps move heat efficiently, so they can use less energy and reduce total energy spending compared with traditional HVAC—even where electricity costs more.

Rockville Utilities Electricity Rates

Pepco
18.20¢
+14%
MD Average
16.60¢
+4%
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 can make sense in Rockville if properly selected for local weather and home insulation. The stated design temperatures are 5°F for heating and 92°F for cooling, so equipment must provide sufficient heat in cold weather and comfortable cooling in summer. At Maryland’s 17.9¢ per kWh average electricity price, costs depend on efficiency and your current fuel.

Palmetto offers a Comfort Plan with no upfront cost, predictable monthly payments, and maintenance and repairs included, or direct purchase, which gives you ownership and may qualify for state or utility rebates when available. No federal tax credit is available for heat pumps installed in 2026; compare options based on total costs and service needs.

Heat pumps can be highly efficient in Rockville because they move heat rather than generate it by burning fuel. Rockville’s Climate Zone 7 design temperatures are 5°F for heating and 92°F for cooling. Heating efficiency declines in colder weather, so proper sizing and equipment rated for cold-weather performance matter.

Maryland’s current electricity price is 17.9¢ per kWh. Your heating costs will also depend on equipment efficiency, insulation, thermostat settings, and fuel prices, so a home assessment can help set expectations. Palmetto offers a $0-upfront Comfort Plan with maintenance and repairs included, or direct purchase, which may qualify for state or utility rebates where available.

In Rockville, leasing through Palmetto’s Comfort Plan may suit homeowners who want a heat pump with no upfront cost, predictable monthly payments, and maintenance and repairs included. Buying means paying once and owning the system outright. Choose based on whether ongoing service or ownership and potential eligible local incentives matter more to you.

Rockville’s Climate Zone 7 design temperatures—5°F for heating and 92°F for cooling—make correct sizing important. Maryland’s current electricity price is 17.9¢ per kWh, so operating costs depend on system efficiency, home conditions, and use. For systems installed in 2026, no federal heat pump tax credit is available; state or utility incentives may still apply where active.

Heat pump installation costs in Rockville depend on home size, insulation, ductwork, and system choice, so an on-site assessment is needed for an accurate quote. Rockville’s Climate Zone 7 design temperatures—5°F for heating and 92°F for cooling—make correct sizing important. Maryland electricity currently averages 17.9¢ per kWh, a factor in operating costs.

Palmetto’s Comfort Plan has $0 upfront cost, predictable monthly payments, maintenance, repairs, and warranty coverage for the plan’s life. Direct purchase requires one upfront payment and gives you ownership; state or utility rebates may be available where active. No federal heat pump tax credits apply to systems installed in 2026.

A heat pump can be financially worthwhile in Rockville, but the answer depends on your current heating fuel, energy use, and equipment condition. Maryland electricity averages 17.9¢ per kWh, and Rockville’s Climate Zone 7 design heating temperature is 5°F, so compare estimated annual costs for a properly sized system with your existing equipment.

Palmetto’s Comfort Plan has $0 upfront cost, predictable monthly payments, and maintenance, repairs, and warranty coverage for the plan’s life. Direct purchase means paying upfront and owning the equipment, with possible state or utility rebates where available. For systems installed in 2026, no federal heat pump tax credit is available, so exclude it from savings estimates.

Homeowners in Rockville can get a heat pump installed through Palmetto, which offers installation with either its Comfort Plan or a direct purchase. A qualified installer should assess the home, existing ductwork, and electrical setup, then size the system for local weather rather than simply matching the old equipment.

Rockville is in Climate Zone 7, with a 5°F design heating temperature and 92°F design cooling temperature, so proper sizing matters. The Comfort Plan has $0 upfront cost and includes maintenance, repairs, and warranty coverage; direct purchase means you own the system and may qualify for available state or utility rebates.

HVAC stands for heating, ventilation, and air conditioning—the broad term for equipment that manages indoor comfort. A heat pump is one type of HVAC system. Unlike a furnace paired with an air conditioner, it moves heat indoors in winter and outdoors in summer, so one unit can provide both heating and cooling.

In Rockville, a heat pump should be selected for local conditions, including a 5°F design heating temperature and a 92°F design cooling temperature. You can purchase one outright or get one through Palmetto’s Comfort Plan, which has no upfront cost and includes maintenance and repairs for the life of the plan.