25 HVAC Business Ideas You Can Start Today [2025]
Interested in starting a hvac business in 2025?
We put together 25 of the best hvac businesses you can start in today.
For each business idea, we’ll show you real-world examples of other hvac businesses to help you see what it really takes.
Here's the full list:
1. Start a chimney repair business
Brick and stone chimneys require maintenance and upgrade to keep them structurally sound and functional. Some regular chimney repair tasks will include repairing and replacing rain pots, rebuilding chimney crowns, and installing new bases and flashing counters.
Thus, starting your own chimney repair business can be a very profitable, so long as you have basic masonry skills and experience. To start, you can offer the services to your neighbors just to showcase what your business offers. If you are not an experienced mason, you can hire skilled professionals and outsource the orders to them.
How much you can make: $21,000/month
Patriot Chimney, a Virginia-based chimney repair company founded by three friends, generated over $212,000 in its first year of operation, using a mix of digital and in-person marketing and customer retention strategies, and plans to expand its business and customer base with new initiatives including an online store and non-profit organization.
2. Start an ac repair business
Research shows the HVAC market will grow at a CAGR of 6.1% and reach $82.5 billion in the next few years.
The growing construction business in major emerging economies and the ever-increasing end-user markets, such as data center markets, are some of the major factors driving the growth of the HVAC services market.
Like other electrical appliances, HVAC units break often and require regular maintenance. As a result, the demand for HVAC repair is high.
Therefore, starting an AC repair business can be profitable. To start, you need a skilled AC repair technical team. Target commercial and residential customers, and market your business online as most people search for AC repair services through the web.
How much you can make: $200,000 — $2,290,747/month
PureFilters is an online supplier of furnace filters in Canada with a focus on customer experience, boasting a wide selection of the best brands and a roster of 300 five-star reviews, all achieved through rigorous process building, investments in automation and use of outsourced help to manage this $60k/mo business with less than 10-12 hours spent per week.
3. Become a spacecraft thermal control officer
How much does it cost to start: $100 (?)
4. Become an automobile HVAC expert
5. Become a HVAC mechanical administrator
6. Become a plane, ships, trains HVAC expert
The skies, seas, and rails are bustling with modern transportation, and behind each vessel, there’s a hidden puzzle: climate control. Enter the world of HVAC expertise for planes, ships, and trains. This specialized business focuses on ensuring optimal climate systems in diverse transport environments, crucial for safety and comfort.
With rising reliance on travel and trade, this niche service is in increasing demand. From maintenance to cutting-edge installations, your expertise keeps journeys pleasant and safe. Unlike conventional HVAC roles, this path lets you navigate challenges unique to moving vehicles, offering a dynamic workday away from static environments.
For those with a knack for engineering and a desire to tackle varied challenges, becoming a transportation HVAC expert offers a blend of technical fulfillment and promising prospects. Whether it's working with international airlines or luxury cruise liners, this career paves the way for exciting, hands-on contributions to global connectivity.
How much you can make: $8,333,333/month
How long does it take to build: 28 days (?)
Reddit's journey from a $12,000 seed investment to a $10 million acquisition by Condé Nast illustrates how strategic pivoting, community-focused growth, and resilience in the face of criticism can transform an initial idea into a platform with millions driven by user-generated content and organic engagement.
7. Become a refrigeration specialist
8. Become a HVAC technician
9. Become a high pressure equipment specialist
10. Become a solar heating technician
11. Start an automatic temperature control units installation business
12. Become a mechanical systems temperature control officer
13. Become a hydronic heating technician
14. Start a HVAC rental business
15. Start a plumbing business
With hands-on knowledge in plumbing, you can start a business that focuses on diagnosing and repairing plumbing issues, installing fixtures, and maintaining plumbing systems.
As a plumber, your day-to-day activities will involve responding to service calls, troubleshooting plumbing problems, conducting installations or repairs, and providing guidance to clients on plumbing-related matters.
How much you can make: $40,000/month
How much does it cost to start: $7,000 (?)
How long does it take to build: 365 days (?)
A second-generation family-owned plumbing and leak detection business shares their success in obtaining repeat business through word of mouth referrals, staying true to their core principles, and using cutting-edge technology to provide top-notch service to clients.
16. Start a bicycle mechanic business
Picture yourself as the go-to expert for fixing bikes, a service increasingly in demand. Starting a bicycle mechanic business involves offering repair and maintenance services to keep cycles in peak condition. From fixing flat tires to tuning gears, you'll provide essential support for cyclists who depend on their bikes for commuting or recreation.
This business idea is straightforward yet fulfilling. You don't need a huge investment—just some tools, a bit of space, and mechanical know-how. Beyond the foundational skills, you'll connect with a cycling community eager for reliable, local services.
If you enjoy working with your hands and problem-solving, this business can be especially rewarding. Plus, as biking becomes more popular for health and environmental reasons, your services will only grow in demand. Ready to turn your passion for bicycles into a viable business? Here’s your chance.
How much you can make: $500/month
How much does it cost to start: $4,000 (?)
How long does it take to build: 75 days (?)
To Go Cycles sells a beer-friendly saddle bag for bike enthusiasts and has already sold their product across Canada and the US, improving brand awareness by partnering with local breweries and cycling groups, and planning to expand globally and expand their product range.
17. Start a HVAC related products selling business
Looking to tap into a high-demand industry? Consider selling HVAC-related products. Whether it's air filters, thermostats, or energy-efficient HVAC systems, this business idea involves supplying essential items in an ever-growing market.
At its core, this business is about becoming a trusted provider of heating, ventilation, and air conditioning products. Everyone needs to maintain their indoor air quality, making it a venture with consistent demand. Your role would be to source quality products, create an engaging online store, and ensure prompt delivery to your customers.
Starting this business can be both rewarding and challenging. You'll need to manage inventory, develop relationships with suppliers, and invest in marketing to reach potential customers. Yet, the steady demand for HVAC products provides a solid foundation for long-term success, making it a compelling business opportunity to consider.
How much you can make: $375,000/month
How much does it cost to start: $100 (?)
Total Home Supply, a heating and cooling products retailer, has achieved double-digit growth, averaging 20% per year with its biggest year almost doubling, thanks to focusing on offering superior customer service both before and after sales.
18. Start an air conditioner installation business
Air conditioner installers sell, install, inspect and repair AC systems to ensure the system functions at optimal levels throughout.
According to statistics, demand for HVAC services will increase by 15% in the next few years. The continuing growth of commercial and residential construction are some factors responsible for the increased demand for HVAC services.
Therefore, air conditioner installation sales and installation can be a great business idea. To start an air conditioning installation business, register, license, and insure your business.
How much you can make: $200,000/month
How much does it cost to start: $1,000 (?)
PureFilters is an online supplier of furnace filters in Canada with a focus on customer experience, boasting a wide selection of the best brands and a roster of 300 five-star reviews, all achieved through rigorous process building, investments in automation and use of outsourced help to manage this $60k/mo business with less than 10-12 hours spent per week.
19. Start a repair training programs business
20. Become a solar thermal technician
21. Start an attic ventilation and insulation business
22. Start a fireplace installation business
The majority of homeowners install new gas fireplaces in autumn before winter arrives. With a fireplace installed, you simply hit a button or flip a switch on the wall to enjoy instant ambiance and warmth.
Starting a fireplace sales and installation business can be lucrative.
23. Become a testing and balancing contractor
24. Start a HVAC test tools business
Considering a niche market with substantially growing demand? Step into the HVAC test tools business. HVAC test tools are essential for technicians to diagnose, maintain, and repair heating, ventilation, and air conditioning systems.
Starting this business involves sourcing high-quality diagnostic tools and equipment, building relationships with reputable manufacturers, and setting up an online or physical retail presence. Your customers will range from large HVAC contractors to independent technicians, providing a steady and consistent market.
Begin by researching the latest tools in the industry, such as manometers, anemometers, and thermal imaging cameras. Partnering with tool manufacturers and offering thorough product knowledge will set your business apart. Additionally, providing training or webinars on using these tools can create a loyal customer base.
With formal skills in sales and technical knowledge, venturing into the HVAC test tools market presents a promising opportunity to serve a specialized and indispensable industry.
How much you can make: $375,000 — $2,290,747/month
How much does it cost to start: $100 (?)
How long does it take to build: 60 days (?)
TruTech Tools, LTD is one of the largest online stores in the niche market of tools and test instruments for HVAC/R Technicians, with $16 million in sales in 2020 and 20% YoY growth thanks to a focus on providing an exceptional customer experience and staying true to their core values.
25. Start a HVAC commissioning service business
HVAC commissioning is a growing field that involves testing and tuning HVAC systems to ensure they meet design standards and operate efficiently.
To start an HVAC commissioning service, you would need expertise in HVAC systems and building standards and certifications from organizations like AABC or NEBB.
The business would provide services like initial HVAC system start-up and inspection, seasonal testing and adjustments, and troubleshooting underperforming systems.
With the prevalence of smart buildings and the focus on energy efficiency, an HVAC commissioning service could help building owners optimize their systems while providing stable year-round business.
How much you can make: $375,000/month
Total Home Supply, a heating and cooling products retailer, has achieved double-digit growth, averaging 20% per year with its biggest year almost doubling, thanks to focusing on offering superior customer service both before and after sales.
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Download the report and join our email newsletter packed with business ideas and money-making opportunities, backed by real-life case studies.
Download the report and join our email newsletter packed with business ideas and money-making opportunities, backed by real-life case studies.
Download the report and join our email newsletter packed with business ideas and money-making opportunities, backed by real-life case studies.
Download the report and join our email newsletter packed with business ideas and money-making opportunities, backed by real-life case studies.
Download the report and join our email newsletter packed with business ideas and money-making opportunities, backed by real-life case studies.
Download the report and join our email newsletter packed with business ideas and money-making opportunities, backed by real-life case studies.
Download the report and join our email newsletter packed with business ideas and money-making opportunities, backed by real-life case studies.
