Delta
Sierra Mechanical
24/7 Emergency Service Available

Fast HVAC &
Plumbing Repair
You Can Trust

Licensed, insured, and on-call 24/7. We fix AC, heating, and plumbing the same day — or your service call is free.

4.9 Google Rating(200+ reviews)
Licensed & Insured
Serving since 2005
Licensed & InsuredNATE CertifiedBBB Accredited24/7 Emergency ServiceFree Estimates20 Years Experience
What We Do

Our Services

Full-service HVAC and plumbing for residential and commercial properties across the Central Valley.

AC Repair & Installation

Same-day diagnostics for all major brands. New installations backed by a 10-year labor warranty.

Heating & Furnace

Full furnace repair and replacement. Emergency heat calls answered 24/7 with fast dispatch.

Plumbing Services

Leak detection, drain cleaning, water heaters, and burst pipe repair for residential and commercial.

24/7

24/7 Emergency HVAC

No heat or AC in extreme weather? We dispatch within the hour—every call answered, every time.

Maintenance Plans

Seasonal tune-ups that extend equipment life by 5+ years and reduce energy costs by up to 20%.

Commercial HVAC

Scheduled and emergency HVAC for offices, restaurants, and retail. Full commercial capability.

Why Choose Us

The 2005 Difference —
Built on Trust

Since 2005, we've been the call neighbors make when something breaks. No upsells. No scare tactics. Just honest work.

4.9★
Google Rating
4,800+
Jobs Done
16+
Yrs Experience
CSLB #1087654
Licensed by California State License Board · Fully Insured

Same-Day Service

Call before noon and we're there today. 45-minute average emergency response.

Upfront Pricing

No surprises. We quote before we work, and we stick to it. Always.

NATE Certified Techs

Our technicians hold the highest HVAC certification available. Real expertise on every job.

Satisfaction Guarantee

If you're not 100% satisfied, we come back and make it right. No questions.

Real Humans Answer

No phone trees. A real dispatcher picks up — day, night, weekends, holidays.

Stocked Service Trucks

90% of repairs done on the first visit. We carry the parts so you're not waiting.

Customer Reviews

What Neighbors Say

4.9(200+ Google Reviews)

AC died in a heat wave. Delta Sierra was out in 90 minutes and had it running before dark. Outstanding.

C
Carlos M.
Stockton, CA

Called at midnight with no heat. Tech arrived in under an hour, very professional, fair price. Will use again.

K
Karen L.
Lodi, CA

Signed up for their maintenance plan—saved over $300 vs the last company I used. Highly recommend.

D
David R.
Tracy, CA
Where We Work

Service Areas

We serve residential and commercial customers throughout the Central Valley. Don't see your city? Call us — we may still be able to help.

Stockton
Lodi
Manteca
Tracy
Sacramento
Modesto
Check My Area — Call (916) 872-5479
Get In Touch

Get a Free Estimate

Fill out the form and we'll call you back within 15 minutes during business hours.

Call or Text Anytime
(916) 872-5479
Email Us
service@deltasierra.com
Hours
Mon–Fri: 7AM–8PM
Sat–Sun: 8AM–6PM
24/7 for emergencies
Emergency? Don't fill a form.
Call directly for fastest response.
(916) 872-5479

We call back within 15 minutes · No spam · No obligation