Commercial HVAC and Insulation Supplier
of Choice

Expansion joints and gaskets for power plants, insulation for metal buildings, and commercial HVAC supplies – since 1954.

Get a Quote

Expansion Joints for Power Plants, Metal Building Insulation, and Commercial HVAC Supplies


Expansion Joints


Metal Building Insulation


Commercial HVAC Supplies


An Oklahoma Commercial HVAC Supplier You Can Count On

We’ve earned a reputation for quality, on-time delivery and fair prices.

Industry Leader

For 75 years, the best companies in the business have turned to L.A. King to help them solve problems and get what they need, when they need it.

Success Partner

Our job is to help our customers succeed. We partner with you to make things easier, faster, and more profitable.

People Prowess

At L. A. King, it starts with our employees. We're a group of smart, friendly and hard working people that enjoy serving others and take pride in everything we do.

About L. A. King

Expansion Joints

L. A. King provides soft goods used in power plants worldwide, such as pillows and seals, inlet and outlet expansion joint belts, insulating and acoustical pillow and deals, custom neoprene gaskets, and related thermal and acoustical materials.

Explore Expansion Joints

Metal Building Insulation

We are a metal building insulation laminator with facilities in Tulsa and Oklahoma City. We provide insulation for metal buildings.

See Metal Building Insulation Solutions

Commercial HVAC Supplies

We deliver commercial HVAC parts and materials for HVAC contractors and sheet metal houses. Shop the brands you want with the expertise you need.

Discover Commercial HVAC Parts

Case Studies

Cost-Effective Design for Diverter Gate Pillows

See how we provided an OEM customer with a solution for diverter gate pillows. Our cost-effective design helped them a enjoy a higher profit margin.

Read More

Closing a Metal Building Roof with Laminated Insulation

See how we helped a metal building insulation customer with a last-minute request as they had a building with an open roof that needed to be closed before storms arrived.

Read More

Working Through Supply Chain Challenges in HVAC Industry

See how we worked through supply chain issues and helped one of our sheet metal fabricator customers stay in business.

Read More

What Our Customers Say…

Decades of Helping Us

We have been customers of L. A. King for over 20 years. They have consistently met our expectations for competitive price and prompt, accurate service/delivery. On multiple occasions, they’ve gone above and beyond to help us through a jam. In particular, working with Jacci has been a treat. She does an excellent job.

Hal, President

Manufacturer of HVAC Systems

Above & Beyond Service

L. A. King has always treated us like we were their #1 customer. The service they give us is without a doubt above and beyond the others. It is always a pleasure to do business with L. A. King.

Kris V.

Heat- & Air-Conditioning Systems Fabricator/Contractor Hinton Refrig

Always Helpful

We love working with the staff at L. A. King. They stock most of what we need and, when necessary, bring the rest in within a reasonable time. They are always helpful and eager to please.

Melissa, Purchasing Manager

HVAC Mechanical Contractor

Always Positive

My experience with L. A. King has always been positive. They are kind, helpful, and very quick with their material. I also appreciate their open communication with what they have in stock and how long it will take to get material.


HVAC Fabricator/Contractor

Always Turn to Them

I have been a loyal L. A. King customer since 1983, and they have always met the needs of my company. I always turn to them, and they always deliver. I happily recommend them to anyone.

Terry, Owner

HVAC Equipment Fabricator/Contractor

Best Customer Service

L. A. King’s customer service is the best in the industry! NOT ONE TIME has has an order been late or wrong – and we’ve worked with L. A. King for over 10 years!

Chad, Owner

Construction Company

Best Prices

Scotty and team at L. A. King work hard to provide us with the best prices, and help us research and price specialty materials. They also always deliver to us in a timely manner. You can’t ask for more from a supplier!


HVAC Contractor

Delivers On Time, Always

We have worked with L. A. King for over 30 years. They have always been easy to work with, take care of business, and deliver on time.


Metal Building Contractor


Thank you for really working with us! You are willing to reschedule and accommodate us on our delivery!

Phillip Hadnall

Superintendent & Rupe Helmer

Friendly & Helpful Staff

I have been doing business with L. A. King for pushing 40 years. The friendly and helpful staff have always worked hard to provide me with the products I need, when I need them. And I say, “Thank you.”

Jim, Owner

HVAC Contractor

Friendly Service

I have been using L. A. King for many years now. Jacci, Bill and Jaime have always been friendly and strive to make a personal.

James, Shop Foreman

HVAC Fabricator/Contractor

Over 40 Years of Service

L. A. King is great. We’ve used them for something like 40 years. They supply insulating and sound-deadening materials, and fabricate for us fabric expansion joints, belts and gaskets. They are reliable, knowledgeable, dedicated, responsive and always fair.


Manufacturer Auxiliary Gas Turbine Components

Preferred Supplier

L. A. King is a great supplier to work with. We’ve done business with them for decades. They consistently provide quality products fabricated and delivered on time. Their customer service, attention to detail and timely correspondence are great assets as well. L. A. King is a preferred supplier and we look forward to many more years together.

Heidi, Senior Buyer

Global Supplier of Auxiliary Systems for Gas Turbine OEMs

Superior Supplier

L. A. King maintains a superior ranking as one of our superior suppliers. Highly dependable and punctual from sales through delivery. They know our industry (refractory), which enhances the value we derive. We know we can count on them to assist us when we are unsure, and to take extra time with us when we need help making accurate procurement decisions. In short, L. A. King is key to our business and we look forward to continuing to work together.

David C.

Diversified Metal Equipment Fabricator

Trouble Free

Been buying insulation from L. A. King for many years. Always trouble free from estimating to delivery. The insulation is pre-cut to spec and clearly tagged for easy and quick layout. Good company. Good products. Great service.


Manufacturer of Pre-Engineered Metal Buildings

It's Easy

Awesome. Let me add that we truly appreciate how quickly you got this handled. Even though it took some time, you were the only company as of now even, that was able to get us a quote at this time. That in itself secured this as an order. It’s great people/companies like you that make things easy for the rest of us. Thank you!

Brandin Hill, Shop Forman

Trade Mechanical Contractors

Highly Recommend

For 37 years I’ve worked with L. A. King. Staff is very knowledgeable and have always bent over backwards to serve our needs. I highly recommend them.


HVAC Equipment Fabricator & Contractor

Great Service

You guys take great care of us. Thanks so much.

Jeff Coleman

Tulsa Air Specialists Inc

Great Prices

I have been doing business with L. A. King for 35 years now. They remain one of our best suppliers. Great prices. Quality materials. Personal service. They’re always willing to hunt for materials with only a quantity and customer specifications. If we give them any reasonable lead time, L. A. King ships on-time 100% of the time (via their own truck).

Tom, Purchasing Manager

Manufacturer of Steel Components for Gas Turbine Industry

Goes the Extra Mile

L. A. King is a great resource for our company. I’ve dealt with many suppliers over the years – in the office and field – and L. A. King is one of the tops in the industry. They are always going the extra mile to make sure they get the supplies to the jobsite promptly so we can keep our men productive. They will go out of their way to make sure our orders, large and small, are delivered on time. For special projects, they do a great job researching the products that are available at a reasonable price.

Gary, Sheet Metal Supervisor

HVAC Contractor

Start Your New Project Today…

Get Started