HVAC replacement process · Northern Virginia

HVAC replacement.
Every step, handled.

A new system should come with a clear plan. We assess your home, explain the options, coordinate the installation, and show you how to use what comes next.

Fairfax · Loudoun · Arlington · Prince William · Falls Church
Virginia electrical and HVAC contractor license 2705181607

72°ONE HOME. ONE COMPLETE PLAN.ASSESSPLANINSTALLVERIFY
One plan for the home, the equipment, and the power behind it.
Seven steps, start to handoffKnow what happens and who handles it
HVAC + electrical expertiseOne licensed team for the full scope
Free replacement estimateBegin with your home and your goals

What happens during an HVAC replacement?

We manage the details.
You stay in the loop.

We assess, size, quote, plan, install, verify, and hand over your system. You share your goals, review the proposal, and confirm the arrangements. We coordinate the equipment and supporting work so each step has a clear purpose.

Walk through the process

The replacement, from beginning to end

Seven steps.
One coordinated job.

Explore each stage to see what we do, what you can expect, and where your input helps. Your written proposal defines the work for your home.

YOUR HOMEComfort concernsExisting equipmentDucts + power

Step 01 of 07 · We assess. You share your goals.

Start with the home, not the model number.

We look at your current equipment, the rooms it serves, the ductwork, and the electrical setup. Then we talk about the comfort problems you want the replacement to solve.

  • Discuss uneven temperatures, noise, humidity, and service history.
  • Review equipment access, locations, and existing connections.
  • Agree on what the next assessment needs to cover.
Your part

Tell us what has changed and which rooms are hardest to keep comfortable. Share any plans for an addition or renovation.

Start with your home.1 / 7
LOAD ASSESSMENTRoom layoutWindows + insulationLocal conditionsHeating + cooling

Step 02 of 07 · We determine the requirement.

Size the system for the home you have.

We use a load assessment to inform the equipment size. Room layout, windows, insulation, and local conditions matter. The old unit’s capacity is a starting detail, not the answer.

  • Evaluate heating and cooling needs for the proposed system.
  • Consider the ducts, returns, and airflow the equipment will need.
  • Explain the basis for the proposed capacity.
Your part

Ask what supports the equipment size. Let us know about changes to windows, insulation, or the spaces you use.

2 / 7
YOUR WRITTEN SCOPESystem modelsSupporting workPrice + timingCoverage + exclusionsCOMPARE THE WHOLE JOB

Step 03 of 07 · We explain. You decide.

Know the equipment. Know the whole price.

We explain the options in plain language and put the agreed work in writing. Compare the equipment, installation details, and supporting work together before approving the project.

  • Identify the proposed indoor and outdoor equipment and controls.
  • Outline supporting work, exclusions, pricing, and timing.
  • Review written warranty terms and registration responsibilities.
Your part

Choose the option that fits your goals and budget. Ask questions about anything that is unclear before approving the scope.

3 / 7
PERMITS + PLANApplicable permitsEquipment placementConnection routesInstallation scheduleACCESS • ROUTES • TIMING

Step 04 of 07 · We coordinate the details.

Prepare the work before installation day.

We handle the applicable permits and plan the equipment locations, access, and connections for the agreed work. Mechanical, electrical, and gas requirements depend on the project.

  • Coordinate required permits and inspection arrangements.
  • Plan removal access, delivery, placement, and connection routes.
  • Confirm the schedule and the expected interruption to heating or cooling.
Your part

Confirm access and timing. Tell us about pets, parking, building rules, or household needs that affect the visit.

4 / 7
REMOVE THE OLDINSTALL THE NEW

Step 05 of 07 · We carry out the agreed work.

Protect the space. Put the new system in place.

We protect the work area, remove the old equipment, and install the approved system. Refrigerant recovery, connections, and equipment setup follow the requirements for the job.

  • Remove the old equipment and manage disposal.
  • Install the system, controls, and agreed supporting work.
  • Complete the relevant HVAC and electrical connections.
Your part

Keep the agreed access route clear and help children and pets stay away from the work area. We will keep you informed as the job progresses.

5 / 7
TEST. DOCUMENT. REVIEW.

Step 06 of 07 · We check the finished installation.

Confirm how the system operates.

Startup checks are part of the installation. We review operation using the procedures appropriate to your equipment and conditions, then explain the findings and any remaining follow-up.

  • Check airflow, controls, drainage, and operating response.
  • Verify refrigerant charge or combustion-related items as applicable.
  • Document relevant checks and resolve or explain outstanding items.
Your part

Ask what was checked, what the findings mean, and whether any follow-up or inspection remains.

6 / 7
YOUR SYSTEM RECORDModels + registrationStartup findingsWritten coverageCare + contact details72°KNOW YOUR NEW SYSTEM

Step 07 of 07 · We explain. You get comfortable.

Know your controls. Keep your records.

We walk through the thermostat, filter care, and maintenance needs. We also review the equipment documents, product registration, and any final inspection arrangements.

  • Review everyday operation and care for the installed equipment.
  • Keep model details, startup information, and written coverage together.
  • Know how to reach us for a question or future service.
Your part

Try the controls with us, ask about the correct filter, and save the service and warranty information where you can find it.

7 / 7Request your estimate

Illustrations explain the process. Equipment, checks, permits, and timing vary with the system and the agreed installation.

The equipment and the electrical work belong in the same conversation.

We bring both trades into the plan, from the indoor and outdoor units to the circuit, disconnect, and controls serving them.

PRO Electric plus HVAC character presenting the replacement process.

The house comes before the equipment

The right fit.
Not simply more capacity.

A larger system is not automatically a better answer. Oversized equipment can cycle too often and affect comfort. We consider the home’s needs alongside the ducts and airflow.

That means looking beyond the old unit’s label. A system choice should reflect the rooms, windows, insulation, and conditions it will serve.

One useful question for any proposal“What assessment supports this equipment size, and what does the air path need?”

Homeowner guidance: ENERGY STAR on quality installation ↗

ROOMSWINDOWSINSULATIONTHE HOUSE SETS THE REQUIREMENT

Different systems. The same care in the plan.

Choose the approach
that fits your home.

Keep a familiar setup or discuss a different way to heat and cool. We help you compare the equipment and the work each option needs.

Central AC

Ducted cooling with compatible indoor and outdoor equipment. We assess the existing air path and what needs to stay or change.

AC replacement

AC + furnace

A coordinated cooling and heating replacement. Controls, venting, fuel connections, and electrical needs belong in the scope.

Heating replacement
CH

Heat pump

Heating and cooling from one system. We review cold-weather needs, backup heat, controls, and the electrical setup.

Explore heat pumps

Ductless mini-split

Comfort for selected rooms or spaces without suitable ducts. Indoor locations, drainage, and connection routes need a plan.

Explore mini-splits

The best fit depends on your home, existing equipment, comfort goals, and complete installation scope.

Look past the equipment box

The installation
is part of the system.

A proposal should explain how the equipment will work in your home. These are the details we bring into the plan.

Assessment before selection

The home’s requirements guide the capacity and equipment choice. We look at supporting systems too.

HVAC and electrical together

The circuit, disconnect, wiring, and controls are part of the conversation with the cooling and heating equipment.

Permits and a clear record

We coordinate applicable permits and inspections for the agreed work. Keep the final project documents.

Startup and a useful handoff

Operating checks, controls, care, and written coverage deserve attention before the job is handed over.

Ask for the equipment, supporting work, exclusions, and written coverage in one clear scope.Explore our services

A few details make the first visit more useful

Bring your questions.
We’ll bring a plan.

You do not need model numbers or technical answers to start. Bring what you know about the home and what you want to improve.

Before installation dayConfirm the schedule, clear the agreed access route, and plan for the interruption to heating or cooling. We handle equipment disconnection and removal.
Your visit checklist
0 of 5 items ready

Checkmarks stay on this page. Copy the list for yourself; it is not sent with the estimate form.

Answers before you commit

Your replacement
questions, answered.

What is included, how to prepare, and what happens after installation.

Ask PRO: 703-225-8222

What is included in an HVAC replacement?

The project typically includes a home assessment, equipment sizing, a written proposal, applicable permits, removal of the old equipment, installation, startup checks, and a homeowner handoff. The exact equipment, ductwork, electrical work, controls, drainage, and other connections belong in your written scope.

How long does HVAC replacement take?

A straightforward replacement may fit into one installation day. A system conversion, duct changes, difficult access, additional zones, permits, or equipment availability can change the schedule. We discuss the expected work period and interruption to heating or cooling after the assessment.

Should I repair my system before considering replacement?

Start with its condition, diagnosed problems, repair history, and your comfort goals. Age alone does not decide. If repair is a practical option, compare its complete scope and cost with the replacement proposal. An assessment helps you understand what each option would solve.

Why do you perform a load assessment?

The assessment helps match capacity to the home’s heating and cooling needs. Selecting equipment only from the old unit’s size or a simple square-foot rule can miss important details. Equipment selection and the air path must work together.

Do you handle electrical work, permits, and inspections?

We bring HVAC and electrical expertise into the project. We handle the applicable permits and coordinate required inspections for the agreed scope. Your proposal should identify electrical changes, gas-related work where relevant, and any work or responsibilities outside that scope.

Can my existing ductwork stay?

It may be reusable if its condition, size, layout, and airflow suit the proposed equipment and home. Existing ducts and returns need to be assessed. We explain recommended changes and include agreed ductwork in the proposal.

What should I do before installation day?

Confirm the schedule and access arrangements, clear the agreed work route, secure pets, and tell us about household or building requirements. Ask how long the home may be without heating or cooling. Leave equipment disconnection and removal to the installation team.

What happens after the new system is installed?

We review operation, controls, filter care, relevant startup findings, and the next maintenance steps. We also explain product registration, written warranty terms, and any remaining inspection or follow-up. Keep those records with the equipment details.

Are replacement estimates free, and is financing available?

We offer free replacement estimates. Financing is available on request; ask about current terms. Diagnostic or repair visits are separate services and may carry charges. Ask whether the veteran and military discount program applies to your proposal.

Does the online request reserve an installation date?

No. The form sends a request for follow-up. We discuss your home, availability, and the assessment before confirming an appointment or installation schedule.

From our Northern Virginia community

Hear from our customers.

PRO Electric plus HVAC character welcoming your replacement estimate request.

Start with a conversation about your home

New comfort starts
with a clear plan.

Tell us about your current system and what you want to improve. We’ll discuss the next step toward a free replacement estimate.

Open the estimate form directly ↗ · Financing is available on request. Ask about current terms and veteran and military discount eligibility.

Your Northern Virginia HVAC and electrical team

Local service.
A plan for your home.

We replace HVAC systems across Fairfax, Loudoun, Arlington, and Prince William counties, plus Falls Church. Share your address and equipment details to begin.

Explore our service areas

Virginia electrical and HVAC contractor license 2705181607 · PRO Electric plus HVAC · 703-225-8222