North Carolina HVAC Service Agreement (Free Template + State Notes)

What Your North Carolina HVAC Contract Should Include

The builder formats these into a clean, professional agreement:

• Parties & Premises: Legal names, service address, site contact, access windows; attic/roof/mech-room access as applicable.
• Scope of Work: Repair/replace/maintain; split/packaged, cold-climate heat pumps, gas/oil furnace/boiler & hydronic, mini-split/VRF, RTUs/DOAS; ERV/HRV; controls/BAS.
• Service Levels: Standard vs. emergency; after-hours; hurricane/wind/lightning, coastal flooding, and freeze/ice rescheduling language.
• Pricing Model: Flat-rate vs. time-and-materials; trip fee; parts handling/mark-up.
• Materials & Parts: OEM or equivalent; low-ambient/defrost controls; condensate freeze protection & overflow safeties for attic AHUs; curb adapters & hail/wind guards for RTUs; corrosion-resistant hardware/coatings for the Coast.
• Customer Responsibilities: Filters, clearances, utilities, HOA/condo approvals, roof/elevator access, debris/snow removal for safe access.
• Warranty: Labor window; manufacturer pass-through; exclusions (misuse, neglect, wind/hail/flood/freeze/salt-air corrosion/overheat damage, non-payment).
• Code & Safety: Local permits/inspections; NC Mechanical & Energy Codes (IMC/IECC-based) with municipal amendments; EPA refrigerant rules; rooftop fall protection; crane/elevator coordination where required.
• Change Orders: Written/e-signed authorization for hidden conditions and price changes.
• Payment Terms: Deposits/milestones; due-on-completion; late fees.
• Termination: For convenience vs. cause; cure periods; demobilization costs.
• Dispute & Venue: North Carolina law; optional county venue (Mecklenburg, Wake, Guilford, Durham, Forsyth, Cumberland, New Hanover, Buncombe, Cabarrus, Gaston, etc.).
• Licensing/Registration: Show your legal business name and applicable NC licenses (e.g., NC Board of Examiners of Plumbing, Heating & Fire Sprinkler Contractors — H1/H2/H3 classifications; NC State Board of Refrigeration Examiners for refrigeration) on the agreement; use licensed subs for electrical/plumbing/gas-fitting as required.

North Carolina–Specific Notes (Read Before You Sign)

Licensing: HVAC work typically requires licensure through the NC Board of Examiners of Plumbing, Heating & Fire Sprinkler Contractors (common classifications H1/H2/H3 and fuel piping). Commercial/industrial refrigeration may require licensure via the NC State Board of Refrigeration Examiners. Display your legal business name and license numbers on proposals and the contract; ensure scope matches classification. Use properly licensed subs for electrical/plumbing/gas-fitting as required.

Permits & inspections are local: Mechanical/electrical/gas permits are issued by the city/county AHJ (e.g., Charlotte/Mecklenburg, Raleigh/Wake, Greensboro/Guilford, Durham, Winston-Salem/Forsyth, Fayetteville/Cumberland, Wilmington/New Hanover, Asheville/Buncombe). Confirm permit needs, plan review (rooftop units/curb adapters/wind), fees, and inspection timing before change-outs or new installs.

Codes: Jurisdictions administer the NC Mechanical Code and NC Energy Conservation Code (IMC/IECC-based) with local amendments. If your scope triggers duct leakage testing, ventilation/ERV balancing, economizers on certain RTUs, or commissioning/controls, assign responsibilities and any testing fees in the agreement.

Climate & geography: Include freeze protection for condensate/piping in the mountains (Asheville/Boone), hurricane/wind anchorage and elevated placement for coastal sites (Wilmington/Outer Banks), corrosion-resistant hardware for salt air, and heat/humidity IAQ notes (dehumidification options).

Cooling-off (in-home sales): Covered door-to-door/home solicitations generally include a 3-business-day right to cancel. Attach the written notice when applicable.

Liens: North Carolina recognizes mechanic’s lien rights with defined notices/timelines. Keep clear payment terms and retain proof of any required notices/waivers.

This page is general business guidance, not legal advice. Requirements can change—verify rules for your municipality and project type.

Example Pricing & Payment Terms (North Carolina)

Flat-Rate Example

Flat-Rate Replacement: Contractor will replace the condenser fan motor on the 4-ton split system at 222 W Hargett St, Raleigh, for a fixed price of $555 plus applicable taxes/permit fees. Includes travel within 20 miles and standard disposal.

Time & Materials Example

Labor: $145/hour (first hour billable in full, then 30-min increments).
Materials: Cost + 25% handling.
Trip Fee: $85 per on-site visit (elevator/crane/roof access billed if required).

Deposits & Late Fees (Sample)

• Deposit: 30% on acceptance for projects over $3,000; balance due on completion.
• Late Fee: 1.5%/month (or the maximum allowed by law) on past-due balances over 15 days.

Maintenance Plan Addendum (North Carolina)

• Coverage: 2 tune-ups/year per covered system (spring cooling; fall heating) — optional mid-summer check for heavy-use sites and mid-winter heat-pump performance check in mountain regions.
• Tasks: Coil cleaning as needed; condensate freeze-protection checks; electrical tighten; refrigerant check; burner/boiler safety checks where applicable; ERV/HRV filter & core inspection; rooftop safety protocols.
• Filters: Customer- or Contractor-supplied; sizes/intervals listed in annex; consider higher MERV during pollen/smoke events on the Coast and Piedmont.
• Priority: Plan members get priority scheduling and 10% labor discount on non-covered repairs.
• Exclusions: Non-maintenance repairs, code corrections, concealed defects, abuse, freeze/wind/hail/flood/corrosion damage unless otherwise stated.
• Term: 12 months; auto-renews unless canceled 30 days prior.

Copy-Ready Clause Examples

NC License & Identification

Contractor holds the required North Carolina license(s) for the work described (e.g., NC PH&FSC Board H-class classification; NC Refrigeration Board where applicable). Contractor’s legal name and License No. NC-H{{class}}-{{your_number}} appear on this agreement and related communications. Licensed subcontractors will be used for electrical/plumbing/gas-fitting where required.

Hurricane/Coastal Corrosion & Mountain Freeze

Where required by code, manufacturer, or site conditions, equipment will include rooftop anchorage/curb adapters with wind/hail guards and corrosion-resistant hardware for coastal environments, and condensate freeze protection plus auxiliary pans/float switches for mountain or attic installations. Work may be postponed during hurricanes/tropical storms, severe thunderstorms, high-wind, snow/ice, or heat advisories for crew safety.

Change Orders

No change in scope, parts, or price is valid unless authorized by a written or electronic change order signed by both parties.

Cooling-Off (If Sold In-Home)

If this agreement was solicited and signed at Customer’s residence, Customer may have a three (3) business-day right to cancel. If applicable, a separate cancellation notice is attached explaining how to cancel and where to send notice.

Dispute Resolution & Venue

This agreement is governed by the laws of the State of North Carolina. Venue for any action lies in the county where the project is located, unless the parties agree otherwise in writing.

North Carolina HVAC Contract — FAQs