Furnace Install & Replacement Experts

At Sterling Mechanical, we specialize in furnace installation and replacement done right—the first time. We don’t believe in cutting corners or rushing jobs. Whether you’re upgrading an outdated system or installing a new one, our focus is on providing clean, precise work that meets manufacturer standards and exceeds expectations.

100% Gurantee

Local Heating Experts

Membership Options

Custom Heating Service

Why Homeowners Choose Sterling Mechanical

  • Free Estimates, No Pressure
    Whether you’re ready today or just looking ahead, we’re here when you need us.

  • One Standard of Work
    We have equipment options for every budget, but installation quality never changes. Every job is held to the same high standard.

  • Owner-Reviewed Quality
    Photos are taken at the end of each job and reviewed by the owner before inspection. Your system doesn’t move forward until it passes our internal check.

  • Transparent Pricing
    What we quote is what you pay. If anything comes up outside the original scope, we’ll explain it clearly and provide straightforward pricing before proceeding.

Signs It Might Be Time to Replace Your Furnace

  • System is 15 years or older

  • Inconsistent heating throughout the home

  • Strange noises or frequent on-off cycles

  • Higher utility bills without increased usage

  • Cracks, rust, or visible damage

  • Poor indoor air quality or excessive dust

  • Constant repairs or breakdowns

Choosing the Right System

We help you select the best furnace for your home, needs, and energy goals. Key factors we’ll walk through:

  • Home Size and Layout
    Proper sizing prevents inefficiency, uneven temperatures, and short system life.

  • Energy Efficiency
    We'll help you compare upfront costs to long-term savings with high-efficiency models.

  • Fuel Type
    Whether gas, electric, or hybrid, we install systems that match your home's needs and local availability.

  • Maintenance Preferences
    Some systems are easier to service than others. We’ll help you pick what fits your lifestyle.

  • Extra Features
    Options like smart thermostats, zoning, and high-quality filters make a real difference in comfort and control.

Systems We Install

  • Gas Furnaces

  • Electric Furnaces

  • Heat Pumps

  • Hybrid Systems

  • Ductless Mini-Splits

Need a Fast Replacement?

We’re based in San Diego and ready to help. Call us for quick turnaround and quality work you can count on.

Frequently Asked Questions

Frequently Asked Questions

  • We proudly serve San Diego County and surrounding areas. If you're unsure whether you're in our service area, just give us a call!

  • Yes! We offer free, no-obligation estimates for system replacements, new installations, and major repairs.

  • We primarily install American Standard equipment, but also offer Ameristar, AC Pro, GE, York, Goodman, and Daikin systems. We service all major brands.

  • Financing options are available through select programs. Ask us during your consultation, and we’ll help you explore the best options.

  • Full system replacements include a Wi-Fi capable smart thermostat (Sensi-Pro Touch), two years of free seasonal maintenance, and a workmanship warranty.

  • Yes! We offer 3-, 5-, and 7-year maintenance programs with discounted rates, fixed pricing, and transferable contracts.

  • Absolutely. We install single-zone and multi-zone ductless mini-splits, perfect for adding comfort to any space without needing ductwork.

  • Yes! Bring us a written quote from any licensed contractor and we’ll match or beat it.

  • Yes. Sterling Mechanical is fully licensed, bonded, and insured. All work is performed in-house — we never subcontract installations.

  • Yes! We offer 10% discounts for seniors, active military, veterans, and first responders.

  • e treat your home as if it were our own. We use floor protection, clean up thoroughly after the job, and guarantee we’ll leave it cleaner than we found it — or dinner’s on us.