Our Warranty
At Sterling Mechanical, we believe your trust is earned, not assumed. That’s why every installation, repair, and maintenance service we perform is backed by one of the strongest warranties in the San Diego area. Our warranty isn’t just fine print—it’s our promise that we will stand by our work long after we leave your driveway.
When you choose Sterling Mechanical, you’re choosing:
100% Satisfaction Guarantee
If you’re not completely satisfied with the quality of our work, we’ll make it right—at no additional cost to you. This isn’t a 30-day promise; it’s our ongoing commitment for the full length of your warranty coverage.
Labor Warranty on New Installations
All new HVAC, plumbing, and ventilation system installations come with a comprehensive labor warranty—covering any workmanship-related issues that may arise during the warranty period. We don’t just walk away after the install; we ensure your system performs exactly as it should.
Manufacturer Warranty Registration
Most manufacturers require product registration to activate full warranty coverage. We take care of that for you, so you get the maximum protection available for your equipment—often 10 years or more.
Parts Warranty
If a part we install fails within the manufacturer’s warranty period, we’ll replace it—coordinating with the manufacturer and handling all paperwork on your behalf.
Repair Guarantee
All repairs performed by Sterling Mechanical are covered for a year from the date of service. If the same issue returns during that time, we’ll come back and fix it for free.
No Surprise Costs
If a warranty-covered issue arises, you’ll never pay for repeat labor or covered parts. You’ll know exactly what’s included and what’s not before any work begins.
What Our Warranty Covers
- HVAC system installations, including furnaces, ductless mini-splits, heat pumps, and air conditioners
- Plumbing installations and water treatment systems
- Ventilation systems, including attic fans, bath fans, and kitchen hoods
- All parts installed by Sterling Mechanical (within manufacturer coverage)
- All labor performed by our certified technicians during the coverage period
What Our Warranty Does Not Cover
- Damage caused by improper use, lack of maintenance, or modifications by anyone other than Sterling Mechanical
- Issues caused by factors outside of our control (power surges, natural disasters, flooding, etc.)
- Parts or equipment not supplied or installed by Sterling Mechanical
Our Promise to You
We built our business on referrals and repeat customers—which only happens when you treat people right. That means showing up on time, doing the job to the highest standard, and standing behind our work with a warranty that actually means something.
Real reviews
What San Diego homeowners say
Quality workmanship, honest pricing, and reliable service. From first-time installs to full system replacements, our customers know they’re in good hands.
“Saw their van in the neighborhood and called them. They turned out to be very professional. Had them replace an older AC unit, on time for everything, did a great job. Easy to deal with. Price was reasonable. Would recommend.”
“Sterling installed central AC in my house. The install was done very quick and very clean. Jason is very friendly and gave us a great price for the job. Now I am enjoying ice cold clean air.”
“Jason and his team were great. Quick and efficient, kept the cost down as well. Highly recommended.”