Your Local Indoor Comfort Experts

Your comfort is our goal! If you’re not happy, we’re not happy.

HVAC team standing in front of branded Lambert service van.

Experienced technicians. Quality workmanship.

Reliable Heating and Air Conditioning

When your heating or air conditioning system is not working properly, you need a contractor you can rely on. Lambert Heating and Air Conditioning provides dependable HVAC services designed to keep your home comfortable in every season.

From small repairs to full system replacements, our team focuses on long-term performance, energy efficiency, and clear communication. We take the time to explain your options so you can make confident decisions about your home’s comfort.

What We offer

Alan Solo Photo no background

Air Conditioning

  • Air conditioner repair

  • AC installation and system replacement

  • High-efficiency cooling upgrades

  • Preventive air conditioning maintenance

  • Heat Pump Services

Heating

  • Furnace repair and diagnostics

  • Furnace replacement and installation

  • Heat pump services

  • Heating maintenance and tune-ups

  • Mini Splits

Ductless Mini Splits

  • Installation and system replacements
  • Accurate diagnostics and expert repairs
  • Reliable solutions that restore comfort and system performance quickly
  • Improved comfort and energy efficiency through properly installed and repaired systems

See Why Your Downey Neighbors Call Us!

EXCELLENT
Google star 1Google star 2Google star 3Google star 4Google star 5
Based on 274 reviews
Posted on Google Google
Theresa Miller profile picture
Theresa Miller
January 10, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Just had a split system installed by Alan and his crew. I personally really care about the way the system is installed and that it looks good aesthetically. Alan’s crew were willing to move things based on my input and really kept me in the loop on decision making. It was a really good experience for me.
Posted on Google Google
Rene Moreno profile picture
Rene Moreno
January 7, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
The representative was on time, very professional and courteous. He explained the situation in easy to understand terms. He explained that I need a new furnace and he showed me photos of the furnace and the wear that has accumulated. I’m looking forward to working with them to finish the job. He got me a quote on the replacement unit and I’m satisfied.
Posted on Google Google
Linda Lawrence profile picture
Linda Lawrence
December 26, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent company. Good communication. Technician very knowledgable and friendly.
Posted on Google Google
Elia Nunez profile picture
Elia Nunez
December 23, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Lambert installed our A/C unit a couple of years back. They are really people we can trust. Great but honest price, good warranty, very reliable service. I won't go anywhere else. Manny is the most cordial, helpful and honest, sincere person you will be very happy to deal with. He goes the extra mile to help you to make sure you are satisfied. I guarantee it!
Posted on Google Google
Jamie Nering profile picture
Jamie Nering
December 19, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alan and his crew were top notch from the beginning of the project to the end. To begin the project Alan showed up, introduced his crew and did a walk through of the job. Before beginning he asked if we had any additional questions. The crew showed up on time each day, took a short lunch break and worked through the end of the day. There was never a question of when they would arrive or where they went. Prior to placing each component of the unit inside and outside of our home the Lead Tech, Daniel, checked in with us to be sure that placement was were we wanted it so there were no surprises at the end. Upon completion of the project Alan did a walk through, asked if we had any questions/concerns and showed us how to use the new unit. I strongly recommend Lambert Heating and Air Conditioning!
Posted on Google Google
Attic Ninja profile picture
Attic Ninja
December 9, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Manuel has always been very helpful and knowledgeable. If It can be fixed they will fix it, if it needs replacing they will give you a bid. They offer 0% financing aswell
Posted on Google Google
Mickie Yuchno profile picture
Mickie Yuchno
November 26, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have been a client for over ten years and I have never been disappointed. First, the office staff is great; both friendly and efficient whether I am calling for annual maintenance or emergency repair. Manny the service technician is the best! When I greet Manny at the door I am confident the problem will be resolved at a fair price. Lambert Heating and Air is a family owned business and they are the only company I call.
White Lambert HVAC service van with logo and contact details.
Alan and Manuel with a customer

Repairs and Installation

Residential HVAC Services

We provide comprehensive heating and cooling services to support your home’s comfort in every season. Whether you need fast repairs, preventive maintenance, or a new system installation, our team is equipped to deliver reliable results.

Our services include:

  • Heating system repair and replacement

  • Air conditioning repair and installation

  • HVAC maintenance and tune-ups

  • Energy-efficient system upgrades

Every service is performed with attention to detail, safety, and long-term performance.

Why Choose Lambert Heating and Air Conditioning?

HVAC team standing in front of branded Lambert service van.

Family-Owned & Operated

We are a family-owned and operated company that strives to restore comfort to our neighbors’ homes.

5-Star Service

The service and quality we provide has earned us a 5-Star Rating across review sites like Angi, Yelp, and CityLocal.

Background-Checked Technicians

Your safety is important to us, so we promise to only send technicians into your home who have been fully background-checked.

Satisfaction Guaranteed

When you schedule services with us, we guarantee satisfaction with every job. If you're unhappy with our work for any reason, just let us know! We'll make it right at no additional cost to you.

Professional Service From Start to Finish

Professional HVAC Services

We believe great HVAC service starts with clear communication and ends with lasting comfort. From your first call to the completion of service, our technicians take the time to evaluate your system, explain your options, and recommend solutions that make sense for your home.

You can expect:

  • Thorough system inspections

  • Straightforward recommendations

  • Skilled workmanship

  • Respect for your home and your time

Our goal is to make the entire process simple, transparent, and stress-free.

What's Next?

Get a quote

Call or Send In A Form

Get scheduled

We'll Confirm Your Estimate Date

Wait & Relax

Service Date Set

Mini Split

Dependable Solutions for Your Home

Ductless Mini Splits

A reliable ductless mini split system plays a critical role in maintaining consistent comfort for your home. Lambert Heating and Air Conditioning provides professional mini split installation and repair services designed to deliver efficient, zone controlled heating and cooling with with energy savings to your home.

Our team works with a wide range of residential spaces to install new ductless systems, troubleshoot performance issues, and complete repairs that restore comfort quickly. We prioritize clear communication, timely service, and long term solutions that maximize efficiency and system reliability, allowing you to stay comfortable in your space.

Scroll to Top