Oceanside · North County · All of San Diego County
Heating & air conditioning, done to the Sterling standard.
Providing the highest quality installations to exact standards of the manufacturer since 2014. Family owned, licensed, and never subcontracted.
5-star rated on YelpWhat we do
Our most popular services
Heating
- Furnace Install & Replacement
- Furnace Repair & Maintenance
- Tankless Water Heater Install & Replacement
- Tankless Water Heater Repair & Maintenance
Clean Air & Water
- Indoor Air Quality
- Air Filtration & Purifiers
- Water Filtration
- Reverse Osmosis Systems
- Water Purification
- Water Softening
Not sure what you need?
Tell us what’s going on and we’ll give you an honest recommendation and a free estimate.
Book a Visit(760) 822-3216Residential
Heating & Air Conditioning
- Installation
- Replacement
- Repair
- Service
- Maintenance
Commercial
Heating & Air Conditioning
- Installation & Replacement
- Repair & Service
- Tune-Ups & Maintenance Agreements
- Tenant Improvements
- Energy Efficiency Upgrades
Local since 2014
North County born. San Diego proud.
Sterling (adjective): conforming to the highest standard; excellent or valuable. With over 25 years of industry experience and more than a decade serving our neighbors, our mission is simple: professional, high-quality service at the best price.
From the first consultation to the final inspection, we handle everything in-house. No subcontractors, no surprises. And if we don’t leave your home cleaner than we found it, dinner’s on us.
Why Sterling
Why choose Sterling Mechanical?
We’re committed to delivering the best value, service, and results of any HVAC provider in San Diego.
100% Satisfaction Guarantee
We stand by our work, from the first call to the final inspection. If something’s not right, we’ll fix it, no questions asked.
Licensed, Bonded & Insured
Fully licensed, bonded and insured. Our own team does every job. No subcontractors, ever.
Price Match Promise
Bring us any quote from a licensed contractor and we’ll match or beat it.
25+ Years of Experience
Decades of hands-on experience. We know what works and how to do it right the first time.
The Sterling difference
More than a service call
Discounts
Special pricing for military, seniors, and property managers. Just mention it when you book.
3, 5 & 7-Year Service Contracts
Fixed pricing on seasonal maintenance, and transferable if you sell your home.
Sensi Pro Smart Thermostats
Control your comfort from your phone with the Sensi Pro. Learn more
4-Hour Arrival Windows
Pick a morning or afternoon window. We’ll call to confirm and keep you posted.
Quality equipment
Brands you can trust
American Standard is our primary line. We also install the brands below, and we service all makes and models.
- American Standard
- Ameristar
- ACPro
- GE
- York
- Goodman
- Daikin
- Fujitsu
- Innovair
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.”