About Us — L & L Heating & Air Conditioning

Our story

Answering the challenge of Colorado weather.

L & L Heating & Air Conditioning technician on site

Answering the challenge of consistent and affordable year-round temperature control in Colorado is what we do. Through a wide range of innovative products and exacting job performance, we optimize the rewards of installation and retrofit. Our dedicated team caters recommendations to suit, ensuring the right option for your specific demand and expectation.

Specializing in a broad selection of air conditioners, heat pumps, ductless options, boilers, furnaces, and indoor air quality products, L&L Heating & Air Conditioning finds the right option for you. With the ideal temperature control equipment in place and serviced properly, you'll sleep better, enjoy greater comfort, avoid disruption, and keep monthly costs to a minimum.

Putting 39 years of experience to work for you, we know what it takes to create an enjoyable home and work environment throughout Parker, Aurora, Centennial, Lone Tree, Highlands Ranch, and Castle Rock, Colorado.

Every project, from a new installation to seasonal maintenance and repair, is completed to strict criteria to earn your satisfaction and protect long-term value. No job is too large or too small, and through our commitment to customer service, we provide a smooth and swift start-to-finish experience.

"You Will Be Comfortable With Us."

Our promise, every job, every season.

What we stand for

The four things we never compromise on.

Punctual arrival, tidy work site.

All jobs are organized to strict standards, eliminating unnecessary delays, mess, damage, or miscommunication. We minimize stress and disruption from quote to clean-up.

Licensed, insured, accountable.

We carry Colorado HVAC license #125538500CL and full insurance. Every technician on site represents our reputation, and our reputation is everything.

On call when it counts.

A furnace doesn't pick business hours to quit. We answer the phone at 2 a.m., on holidays, in blizzards. Round-the-clock emergency repair is built into the model, not an add-on.

Every brand, every system.

Our technicians are proficient in all major makes and models of heating and cooling equipment, and we partner with industry-leading manufacturers including Amana to provide reliable solutions.

Service area

Serving Front Range Denver from Arvada to Monument.

From our home base in Parker, our trucks roll out across 38+ cities along the Front Range. If you're north of Denver, south of Castle Rock, or anywhere between Arvada and the foothills, we cover you.

Arvada Aurora Boulder Brighton Broomfield Castle Pines Castle Rock Centennial Cherry Hills Village Commerce City Denver Edgewater Elizabeth Englewood Evergreen Golden Greenwood Village Highlands Ranch Lakewood Littleton Lone Tree Longmont Northglenn Parker Thornton Westminster Wheat Ridge + 12 more

L & L Heating & Air Conditioning service vehicle

In our customers' words

4.8 stars across 672 Google reviews.

★★★★★

"L&L Heating and Air were amazing with their integrity, fair pricing and urgency with installing a new furnace. I was especially grateful for this because previous HVAC companies attempted to deceive and take advantage of me. Once you find a trustworthy team like this you never call anyone else."

Ryan Hulsey

3 months ago

★★★★★

"I have used L & L multiple times over the last 15 years. They have always been professional and reliable. Their prices are reasonable. Blake came out to troubleshoot a low voltage issue on a furnace. He worked really hard and didn't give up until he found the issue. He saved me a huge headache and thousands of dollars."

Lee Kastberg

4 months ago

★★★★★

"L&L came to the house and did a great job of explaining the options available to me. After installation Blake came out and did the final adjustments. He was very polite and knowledgable. The new furnace worked much better than the old one. I would not hesitate to call L&L for any HVAC needs."

Ron Gresham

3 months ago

What you can count on

The basics, done right, every single visit.

Whether you're interested in one-time seasonal service or a comprehensive Maintenance Agreement, every job is handled with punctual arrival, meticulous attention to detail, and tidy work sites.

Free estimates

No-pressure walkthroughs and written quotes before any work begins.
Financing available

Replace a failing system without draining your savings — flexible payment plans on qualifying equipment.
Coupons & referral program

Active seasonal savings on tune-ups, plus a thank-you reward when you send a neighbor our way.
Residential & light commercial

From single-family homes to multi-tenant buildings, restaurants, and offices.
Pay your invoice online

Settle up from your couch with a secure online payment portal.

Ready when you are.

Whether it's a tune-up, a same-day repair, or a full system replacement, our team is one call away.

Schedule Service Call 720-807-0194

39 years of keeping Denver comfortable.

Answering the challenge of Colorado weather.

The four things we never compromise on.

Punctual arrival, tidy work site.

Licensed, insured, accountable.

On call when it counts.

Every brand, every system.

Serving Front Range Denver from Arvada to Monument.

4.8 stars across 672 Google reviews.

The basics, done right, every single visit.

Ready when you are.