Monday - Friday, 8:00am to 5:00pm
Heating & Cooling Experts
Goldkamp Heating & Cooling is a family owned and operated business that services all of your HVAC needs in Lake St. Louis. Being in business for 27 years, we know what it takes to get the job done, and get it done right. We aren’t done growing yet either, and we are proud to call Lake St. Louis our second home.
The furnace and heat pump experts at Goldkamp are just a phone call away.
When you require fast, reliable HVAC services or want a quote on replacing your furnace, you need a company you can count on to deliver. Our NATE-certified technicians have you covered. With over 25 years of experience repairing, replacing, and servicing cooling and heating equipment, our dedicated team will get your system up and running again in no time!
Heating & Cooling Experts
We began this journey in 1999, staying true to the core values that built our reputation as an industry expert. With our highly trained technicians and dedication to ensuring superior service, Goldkamp Heating & Cooling continues to honor our commitment to complete customer satisfaction.
We understand that the weather extremes in Lake St. Louis often lead to sudden system failures. These often happen at midnight, when most heating and AC companies are shuttered. Fortunately, our team of HVAC experts is always ready to serve. To schedule emergency furnace service, contact us at (314) 839-3332.
At Goldkamp Heating & Cooling, we believe in giving back and getting involved in the communities we serve. We regularly participate in local sports and community projects. To help ensure the comfort of future generations, we also vigorously promote local trade schools.
Goldkamp Heating & Cooling is committed to providing the best HVAC service in Lake St. Louis. This goes for everyone, from the people who answer our phones to our owners. Here’s what you can expect from us. If we ever fall short of total satisfaction, we encourage you to take advantage of our warranty or guarantees.
Heating & Cooling Experts

Winters can be equally daunting in Lake St. Louis. With lows averaging in the 20s, a busted furnace isn’t an option. Regular maintenance and inspections ensure you don’t have your heat go out on the coldest nights of the year. And, if that old furnace is checking out, you can call Goldkamp Heating & Cooling for a free quote on replacing it. However, repairing your central heating system will often do the trick.

If you’ve lived in the Lake St. Louis area in summer, you know that a solid running AC unit is mandatory. When it’s been a long day at work, followed by sweating your way through Schnucks and thick humidity loading your groceries, you’re looking forward to getting into your nicely cooled house. But what if you get home and are greeted by air thicker than outside? Don’t panic! Call Lake St. Louis’s AC service experts–Goldkamp Heating & Cooling!
Here’s a short list of ways we help you keep your cool:

Often, we forget about all the particles, pollen, pollutants, and dander that inevitably make their way into your HVAC system. Goldkamp Heating & Cooling offers a range of options, including duct-cleaning and ductwork services to maintain optimal air quality. These ensure you and your family can enjoy the freshest, cleanest air Lake St. Louis has to offer.
Ways we help your air quality include:
Heating & Cooling Experts
Our HVAC maintenance plan is designed to keep your home safe and your equipment running efficiently. In joining it, you’ll receive yearly furnace inspections that provide:
Still not sure we’re the HVAC company for you? Goldkamp has earned the trust of Lake St. Louis through our steadfast commitment to high-quality service. We’re as much a mainstay of the community as the townhall. This dedication to our customers is plainly reflected in our reviews on Google.
We look forward to providing you with expert HVAC care. Call (314) 839-3332 to schedule your furnace repair and let us maintain your comfort.
For 1-inch disposable filters, change them every month. If you use a 4-inch media filter, replacing it twice a year is usually enough to prevent HVAC issues and keep your system running efficiently.
Call for furnace repair if your furnace isn’t heating properly, making unusual noises, or won’t turn on. Early diagnosis by Goldkamp’s technicians can quickly identify problems and provide effective solutions.
Goldkamp Heating & Cooling is family owned since 1999, with highly trained technicians who provide upfront pricing, reliable repair, and quality customer service. They are trusted by many locals in Florissant and surrounding areas.
Yes, Goldkamp stands behind their work with a satisfaction guarantee. Customers pay the agreed price upfront and can trust the high quality and reliability of furnace repairs performed by qualified technicians.
You can schedule repair service by calling (314) 839-3332 or contacting Goldkamp Heating & Cooling via their website to describe your heating or AC issues and set an appointment.
Goldkamp Heating & Cooling serves Florissant, Saint Charles, O’Fallon, and other nearby cities in St. Louis County, providing furnace and AC repair services throughout these locations.
Heating & Cooling Experts
Trustindex verifies that the original source of the review is Google. The office staff were polite and pleasant.Our technician Paul was very thorough and a pleasure to work with, he explained things in easy to understand terms and was efficient with his time spent on the job.Posted on Tim Holschen2025-10-15Trustindex verifies that the original source of the review is Google. I’ve used Goldkamp heating and cooling for years!! They’ve rescued me from heat and cold many times. Quick and very dependable! Reasonable pricing too.Posted on Janet Reay2025-10-14Trustindex verifies that the original source of the review is Google. John has been to our house many times and always takes good care of our equipment. He’s very professional And thorough.Posted on Chuck Marley2025-10-13Trustindex verifies that the original source of the review is Google. Technician was knowledgeable, friendly, and helpful.Posted on Denise Wilson2025-10-13Trustindex verifies that the original source of the review is Google. Great company!Posted on joe forshaw2025-10-13Trustindex verifies that the original source of the review is Google. We continue to be pleased with Goldkamp’s service 7 years after they installed a new HVAC system for us. John was here to service our furnace - he was prompt, thorough and pleasant to have in our home. We know they will be there should we need service during the season. Highly recommend Goldkamp Heating & Cooling!Posted on Joan Koontz2025-10-11