Duct Additions

Furnace and Air Conditioning Repairs

Preventative Maintenance Program


Filtration Systems

Ultraviolet Light Filtration

Hepa Filtration

Electronic Air Cleaners



Zone Units

System Design


Tenant Improvement

Real Estate Inspections

(For the Buyer, Seller and Agent)


We recently had an issue with out AC, and after a quick call to Darrell's (I called before business hours, expecting to leave a message, but he answered!) I was walked through a quick bit of troubleshooting (checking breakers) and such and was then told that a tech could arrive the following day. I then got a call back a couple of hours later and was told that they were able to shuffle things around to fit us in...on a Sunday!!  The tech arrived, was super qualified and nice as heck, and sussed out the issue right away. He did need to return the following day with the required part, but he called first thing, arrived right on time, and got us nice and cool again. They have a customer for life! You could surely call someone else for your AC needs...but you'd be making a mistake.


Eric L. froLivermore, CA

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Need Our Services?


A Newer  High Efficient  Air Conditioning System

All New Air Conditioner Systems come with a Full 10-Year Warranty on All Parts. These units run very quiet . Most have Rebates & Tax Credits and you can expect your Utility Bill to drop by up to 35% or More!

We Offer:

• Free In Home Estimates For New Equipment Installs

• 80% up to 97.5% Efficient Furnaces, (With Tax Credits and Rebates++).

• 14 SEER A/C Units up to 2 Stage 20 SEER. (Rebates++).

• Your estimate can be emailed to you within hours, not days.

• We will work with your schedule! (Weekends & Evenings Too+).

• Never Any Pressure and No Obligation To Buy

Our Professional Services Include the Following:

Air Conditioning Repairs

Air Conditioning Add-On

A/C Relocation

Furnace Replacement

Furnace Relocation

Ductless Split Systems

Electrical Panels
Duct Replacement

Our technicians can locate the trouble and take care of it, whether you need a simple repair, replacement parts or the installation of a new unit. We have the experience to get the job done right the first time and have your family and home back in comfort in no time.

We Work 7-Days a week, offering extended hours on Saturday.
​Same Day Service if you call before 3:00 PM.

Livermore • Pleasanton • Dublin • San Ramon • Sunol • Alamo • Danville • Blackhawk • Diablo  • Walnut Creek • Antioch • Brentwood • Discovery Bay • Oakley 

It's Faster To Call Us.

All of our heating systems are ENERGY STAR® qualified, which means they can significantly lower your utility bills compared to conventional models.

Protective Floor Footwear

You work hard keeping your family safe and your home clean, Darrell's understands. That's why our employees all wear Protective Shoe Covers, so no outdoor bio-transfer enters your home.

It's just another step we take, to show we care

Our Technicians Are Certified Professionals

​Call 925.292.4500

Darrell's Exclusive

We're Setting The Bar - Again!

All other companies set up their
Parts Warranty for a maximum of

1-year. We, at Darrell's, are Firing Off 2017 with a Huge Bang!

Starting 1/15/2017 Every Part
We Install, Carries Our Exclusive, Unconditional, 3-Year Warranty.

Don't worry though, we still have our 5 and 10-year warranties too.

And Still Free Of Charge...

Why Call Darrell's?
You Know Why

 (925) 292-4500

Air Conditioning Services

100% Best Price Guarantee​​

  • • If there's a better price from our competitors, we'll not only match it, but, we'll beat it by an Additional 10%.(*Within 35 Miles)

  • • Darrell's is constantly reviewing the pricing of other companies so that  we can give you the best possible value.

We Offer The Following Professional Services

Darrell's Heating and Air Conditioning

Your Comfort is our Business

100% Satisfaction Guaranteed​​

  • • Once repaired, your unit will have trouble-free operation for 1-year – minimum.

  • • FREE Equipment Replacement Estimates & Trouble-Free  Residential Maintenance.​

  • • FREE Service Calls, With Authorized Repair.

​Darrell's "Exclusive" 3-Year Warranty on Repairs
Same Day Service/Repair - (if scheduled before 2:00 pm)

You rely on your air conditioner to keep you comfortable when temperatures soar. If it breaks down in the middle of summer you can look forward to hot, sticky, humid conditions until it’s been repaired.

Call Darrell's  today to help you with any issues that may arise, whether it’s maintenance, repair or replacement. We’ll be there to help when you need us.​​