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49 Years
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Emergency
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Your Trusted HVAC Partner in Tulsa, OK
KMS Heating & Cooling has been a trusted name in the HVAC industry since 1977, serving Tulsa and surrounding communities with integrity and expertise. Founded by engineers committed to alternative energy applications, we have evolved into a premier design-build mechanical contracting firm specializing in residential and commercial HVAC solutions. Our team of highly skilled technicians delivers innovative heating, cooling, and air quality systems, including geothermal and solar technologies, backed by over 40 years of experience. As a 100% woman and minority-owned business, we prioritize local community impact, customer satisfaction, and sustainable practices.

Our commitment to excellence is reflected in our extensive engineering capabilities, personalized service, and recognition as industry innovators. We maintain rigorous professional standards through certifications like Mechanical License #072096 and Boiler License #1262, ensuring every project meets exacting quality benchmarks. From routine maintenance to complex commercial installations, our dedicated staff combines technical proficiency with a customer-first approach to deliver reliable, energy-efficient solutions tailored to individual client needs.
Services
HVAC Installation Geothermal Systems 24/7 Emergency Services Indoor Air Quality Water Heater Repair Commercial HVAC Design Ductless Mini-Split Systems Solar Applications Boiler Maintenance Smart Thermostat Installation
Details
  • Year established: 1977
Highlights and features
  • We offer over 40 years of specialized HVAC expertise in Tulsa.
  • Our 24/7 emergency services ensure immediate assistance for critical needs.
  • We pioneered geothermal system designs recognized nationally in the industry.
  • 100% woman and minority-owned with a commitment to local community values.
  • Custom HVAC maintenance plans extend equipment longevity and efficiency.
Associations and certifications
  • Mechanical License #072096
  • Boiler License #1262
  • Plumbing License #020182
What people say
Fast service Knowledgeable staff Excellent communication Reliable repairs Professional technicians
Services
HVAC Installation
Professional HVAC installation for residential and commercial properties ensures optimal performance and energy efficiency. Our technicians handle conventional, geothermal, and solar systems with manufacturer-certified precision. Custom designs meet specific building requirements while maintaining compliance with industry standards.
Geothermal Systems
Geothermal system design and installation leverage earth's stable temperatures for sustainable climate control. We specialize in ground-source heat pumps that reduce energy consumption by up to 60% compared to traditional HVAC systems.
24/7 Emergency Services
Around-the-clock emergency HVAC support addresses critical system failures with rapid response times. Our technicians resolve urgent heating and cooling issues during extreme weather conditions to restore comfort and safety promptly.
Indoor Air Quality
Comprehensive indoor air quality solutions remove allergens and pollutants through advanced filtration systems. We install ventilation upgrades and purification technology to create healthier residential and commercial environments.
Maintenance Plans
Custom HVAC maintenance programs prevent breakdowns and extend equipment lifespan through regular inspections. Annual checkups optimize system efficiency and ensure early detection of potential issues before they escalate.
People
Darlene Adkins
Owner
Darlene Adkins acquired KMS in 2021 after 13 years with the company. As the first woman and minority owner, she continues the founders' legacy of local ownership while expanding sustainable HVAC solutions.
Casey Johnson
Estimator
Casey Johnson brings 4 years of HVAC estimation expertise to KMS. Recognized for precise system sizing calculations and client education, he ensures accurate project scoping and customer satisfaction.
Questions
What HVAC services does KMS offer?
We provide installation, repair, and maintenance for residential and commercial HVAC systems including geothermal, solar, ductless, and conventional systems.
Do you offer emergency HVAC service?
Yes, our 24/7 emergency service responds promptly to critical heating and cooling failures in Tulsa and surrounding areas.
What makes KMS geothermal systems unique?
As national geothermal innovators, we design systems with patented procedures that maximize energy efficiency and long-term cost savings for residential and commercial clients.
Are financing options available?
We offer CAP maintenance plans starting at $189/year and coordinate with PSO rebates to help customers manage HVAC system investments.
How can I schedule HVAC maintenance?
Contact us via phone at (918) 834-7000 or through our website form to schedule maintenance or request service appointments.
Videos
Reviews (7)
Peggy Harris
Nov 05, 2021 Report
Positive:Professionalism
Used this company to check our new water heater that wouldnt stay lite. They were so professional and kind. Diagnosed and replaced a defective part on the water heater. It works great now. I would use them again no question. Great company!
Peggy Harris
Leia Adkins
Sep 07, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Outstanding people great prices family owned!! I will never use another Heating and Ac company!
Amp E.
Aug 11, 2021 Report
I paid them over $30,000 to install a 10-ton and a 3-ton system in a warehouse building I built, and the 10-ton Carrier system they installed didn't have an idler pulley, which caused the system to constantly throw belts, and require maintenance. They would not stand behind repairing the system so that it would work properly, claiming it was a design flaw from the manufacturer. When I recently relocated to a new facility, the new landlord wanted me to use them to install a 5-ton system in our warehouse, and to service two 3-ton systems in the office areas. They didn't fully charge the
Richard Simons
May 21, 2021 Report
K&M Shilingford is the very best of the best for your all your plumbing needs. I am not your average customer. Ive been a remodel contractor for many years as well as a maintenance manager for a local school program that had three schools and senior maintenance for a Tulsa county housing program. So if I call for help its because its an issue that has me flummoxed. Today I had an issue with a brand new water heater that I installed. Ive installed hundreds of water heaters in the past 30 years and probably right at a hundred just in the past 3 years. So Im quite experienced with many
Linda A.
Oct 24, 2020 Report
Shillingford saved me a lot of money. Another company said I needed a new unit. They fixed it for a fraction of the cost with one small part.
Swank Bowzer
Jul 30, 2020 Report
This is honestly one of the worst companies I've ever had to deal with. I had a good history of them working with me in the past. They installed the original geo unit in my house so I have continued to do business with them just based on familiarity alone. About 10 years ago, we had a misunderstanding about payment method after installing a new external pump. They used the card on file which was expired after I told them to bill me directly and not by my card on file (I was between debit cards at the moment). This eventually resulted in a late payment. Never went to collections. Following year
Joe Uzzel
Dec 14, 2019 Report
Knowledgeable and precise. K & M Shillingford can take care of literally any HVAC job from single family ranch homes to heavy industrial. They take care of their customers big and small.