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Furnace Repair & Replacement in Leander

Professional furnace repair and replacement. Expert heating installation and furnace maintenance. Licensed HVAC contractor.

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Complete furnace repair and replacement services. Professional heating installation and furnace maintenance from a licensed HVAC contractor.

Repair or replace: how to decide

  • Gas furnaces typically last 15-20 years; past that point a major component failure usually favors replacement.
  • A cracked heat exchanger is a replacement-level event on an older unit — it is the furnace's most expensive part and a safety issue.
  • Repeated repairs two seasons in a row signal cascading wear; a quote for both paths lets you compare real numbers.
  • If the AC is also near end of life, replacing both together saves duplicated labor and matches the indoor coil correctly.

What a furnace replacement includes

  • Sizing by heat-load calculation, not nameplate matching — oversized furnaces short-cycle and wear out sooner.
  • New flue venting verified for draft and clearances, plus a condensate drain and trap on high-efficiency condensing models.
  • Gas line leak test, new disconnect and service switch as code requires, and a programmable or smart thermostat option.
  • Post-install combustion analysis documenting safe CO levels and the temperature rise within manufacturer spec.

Choosing efficiency tiers

  • 80% AFUE units cost less and suit mild climates or garages; 90-96%+ condensing furnaces recover the difference in fuel savings in cold climates.
  • Two-stage and modulating burners run longer at low fire for steadier temperatures and quieter operation.
  • ECM blower motors cut electrical use year-round since the same blower also serves the AC.

Frequently Asked Questions

How quickly can you schedule furnace repair & replacement?

We offer same-day and emergency availability in Northwest Austin, Leander, Liberty Hill, Georgetown, and nearby communities, subject to appointment volume and weather conditions.

What should I do before requesting furnace repair & replacement?

Check your thermostat settings, verify airflow at vents, and replace a dirty filter to rule out simple causes before service.

How do I book furnace repair & replacement service?

Call (512) 763-5939 or use our online scheduler to request your preferred time window.

Are your technicians licensed and insured?

Yes. Every technician is a licensed HVAC professional, fully insured, and background-checked before entering your home.

What HVAC brands do you service?

We service all major HVAC brands including Trane, Carrier, Lennox, Rheem, Goodman, American Standard, Bryant, and Amana. Universal parts and tooling let us work on most systems regardless of manufacturer.

Do you offer financing or payment plans?

Yes — qualified customers can use 0% financing options on installations and larger repairs. Ask your technician for the current promotional terms.

What is the warranty on your work?

Repair work is warrantied; warranty length varies by part and service category. Your technician confirms the exact terms before the job starts so there are no surprises.

Need HVAC Service Today?

Same-day appointments available. Call now or book online for fast, reliable service.

Why Choose One Hour Heating & Air Conditioning?

We deliver reliable HVAC service with a commitment to your comfort and satisfaction.

On-Time Guarantee

We respect your schedule. Arrive within your appointment window or service is free.

Licensed & Insured

TACLA licensed technicians with full insurance coverage for your protection.

Same-Day Service

Emergency and same-day appointments available 7 days a week.

Upfront Pricing

Know the cost before work begins. No surprises, no hidden fees.

Expert Technicians

Background-checked, drug-tested, and continuously trained on latest systems.

All Major Brands

We service and install Trane, Carrier, Lennox, Rheem, and all major brands.

Texas HVAC License: TACLA00151023E
Address: 775 CR 270, Leander, Texas 78641
Hours: 24/7 emergency
Service focus: Northwest Austin, Leander, Liberty Hill, Georgetown, and nearby communities