Call to Schedule Service: 24/7
From HVAC installs to seasonal maintenance and emergency repairs, we tailor every system to maximize comfort and energy efficiency. As a trusted leader in Central Valley, we’re committed to top-quality service!
Modesto's Trusted HVAC Experts - $100 OFF Heating or Cooling Repair*!
We’ll be there when it matters most—today.
Same-Day Service
Here’s why your neighbors choose Derek Sawyer's every time!
No surprises. Ever.
Upfront Pricing
Nights, weekends, holidays—count on us.
Emergency Repairs 24/7
Budget-friendly plans, including 0% interest.
Flexible Financing
Peace of mind for every visit.
Fully Licensed & Insured
Friendly, respectful, and highly trained pros.
5-Star Technicians
Home Services That Keep You Comfortable Year-Round
From emergency repairs to energy-saving upgrades, we offer fast, reliable solutions tailored to your home or business. AC Not Cooling? Don't Wait. Call Derek Sawyer Today!
20+
Years in Business
24/7
Emergency Services
1.8K+
Positive Google Reviews
100%
Satisfaction Guarantee
Cameron was on time and first listened to my concerns then looked at the air conditioner unit. He explained what was the issue and explained my warranty and service that was available for future repairs and how to keep the cost reasonable for me. Thank you so much for your service.
Theresa T
Rosa H
Aiden was professional and stayed late on a Saturday afternoon to make sure we had our AC unit up & running. We highly recommend Derek Sawyer heating and air. I have been a customer since 2011 and they have always come through!
Benami G
Real Stories from Happy Homeowners
We don’t just fix systems — we earn trust. See why thousands of families count on Derek Sawyers for comfort that lasts!
Whether chilly nights hit or your heater repair stops working, Derek Sawyer delivers fast, trusted services when you need it the most! Book Service Today!
Don’t Wait on Comfort — Book Now & We’ll Be There!
Proudly Serving Modesto and Central Valley
Our expert technicians are just around the corner — ready to deliver fast, reliable HVAC service when you need it most!
We proudly serve these counties:
Modesto
Fresno
Stockton
Patterson
Sacramento
Tracy & More!
AC & Heating Repairs
Fast, same-day repairs by certified pros who get it right the first time — so you’re never stuck in the heat or cold.
New System Installation
Upgrade to an energy-efficient system that saves you money month after month — with flexible financing options available.
Seasonal Tune-Ups
Prevent costly breakdowns before they happen. Our tune-ups keep your system running smoothly and efficiently.
Indoor Air Quality
Breathe cleaner, healthier air with filtration and purification solutions tailored for your home.
License: CSLB#1118786
Trusted HVAC Repair & Install Services in Central Valley
Special Offers You Don’t Want to Miss!
*Act now — these offers are for a limited time only!
Special Offers You Don't Want to Miss!
✔ Free Service Call With Repair
✔ 0% Interest Financing Options
✔ Industry-Leading Warranties
Same Day Service Available