HVAC contractor — heating, cooling and ventilation
HVAC licensing varies by state and locality, and any technician handling refrigerant needs EPA Section 608 certification. Gas-fired equipment may also require a separate mechanical or gas-fitting license depending on your state. Expect $90–$160/hr for standard labor and $160–$350/hr for urgent after-hours work.
On Marketit you'll find manually vetted businesses. Describe the building, symptoms, system type, and urgency in the chat, then compare written proposals based on equipment sizing, efficiency, warranty, and total installed cost.
Price level
SEK 800–1,200/hr incl. VAT. OVK for a house SEK 1,800–3,500. FTX installation SEK 65,000–140,000. ROT on labour.
What does a hvac contractor cost in 2026?When should you hire a hvac contractor?
For loss of heating or cooling, unusual odors or noises, weak airflow, rising energy bills, refrigerant or water leaks, persistent condensation, or indoor-air concerns. Get professional sizing before a heat-pump, furnace, air-conditioner, or whole-home ventilation replacement.
Common mistakes to avoid
- Hiring a generalist for regulated gas or refrigerant work. The job may be unsafe, uninsured, and noncompliant.
- Buying equipment before the installer calculates the building's load. Oversized systems cycle poorly; undersized systems struggle in extreme weather.
- Skipping commissioning after installation. Without correct air flows the system doesn't deliver what you paid for.
- Forgetting filter changes. A clogged filter raises electricity use and slowly degrades indoor air quality.
- Choosing on equipment price alone without comparing SEER2/HSPF2 efficiency, controls, labor warranty, and expected operating cost.
Checklist before you hire
- Verify the required state or local HVAC contractor license and EPA Section 608 certification
- Confirm general liability insurance and workers' compensation cover
- Ask for a Manual J load calculation before replacing equipment, not a rule-of-thumb size
- Confirm who pulls permits and schedules the building department inspection
- Request a written quote separating equipment, labor, controls, ductwork, disposal, and sales tax
- Ask for commissioning results, AHRI match documentation, warranty registration, and manuals
Frequently asked questions
Which HVAC credentials should I verify?
Check the state or local contractor license first, then EPA Section 608 certification for anyone handling refrigerant. NATE certification is a good sign of technician training, and many utility rebates require a participating or certified contractor.
What's the difference between an HRV and an ERV?
Both exchange heat between outgoing and incoming air. An HRV mainly transfers heat, while an ERV also transfers some moisture, which usually suits humid climates better. Climate, occupancy, airtightness, and existing ductwork determine the better fit.
Do I need a permit for HVAC replacement?
Often yes. Most city and county building departments require a mechanical permit for replacing major equipment or altering gas, electrical, or ductwork, with an inspection afterwards. The contractor normally pulls it; confirm that in writing.
How often should an HVAC system be serviced?
Check filters every one to three months and follow the manufacturer's schedule. Cooling equipment is commonly serviced in spring and heating equipment in fall, with heat pumps checked before the main season. Service should cover safety controls, airflow, drainage, electrical connections, and refrigerant charge.
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