- AC Repairs
- Furnace Repairs
- HVAC Replacements
- Seasonal Tune-ups incl. Coil Cleans
- Air Balance Improvements
- Duct Repairs
- Home Energy Rating System (HERS) Audits
- Indoor Air Quality Improvements
- Smart Thermostat Installations
Heating & Air You Can Rely On
Veteran-owned and operated HVAC services for homes, businesses, and builders across Upstate South Carolina.
Comfort and efficiency shouldn’t be complicated.
Whether you’re managing a job site, running a business, or trying to keep your home cool, HVAC problems disrupt everything. Delays, breakdowns, and hidden costs make it even worse — especially when you don’t have the right partner.
We’re a Veteran-owned, full service air-conditioning contractor that puts you and your comfort first.
Our friendly, trained, and certified technicians will diagnose your problem(s) and provide you with an upfront cost before any work starts. Once approved, we’ll have your system up and running in no time.
Before leaving, our technician will review the repair with you, process payment, and provide you maintenance tips to save you money.
Commercial. Residential. New Construction. We’ve got it covered.
Our experienced techs and project managers work with homeowners, builders, and business owners in all areas of industry to deliver smart, efficient solutions that last.
Homeowner Services
Home Buyer Services
- Pre-Purchase HVAC Inspections
- Duct Leakage Inspection (Duct Blast)
- Home Leakage Inspection (Blower Door)
- Home Energy Rating System (HERS) Audit
Business & Organization Services
Includes: Retail, Manufacturing, Restaurants, Schools, Medical, Government
- AC Repairs
- Furnace Repairs
- HVAC Replacements
- Tune-ups and Coil Cleans
- Filter Changeouts
Residential Builders & General Contractors
Services for Residential Builders
- New HVAC System Installations
- Mechanical Permitting
- Heat Load Calculations (Man. J)
- HVAC System Design
- Duct Leakage Inspections (Duct Blast)
- Home Air Tightness Inspections (Blower Door)
- Home Energy Rating System (HERS) Audits
Services for Commercial Builders
- New HVAC System Installations
- Retrofits
- Mechanical Permitting
- HVAC Design-Build (Design Subcontracted)
- Test and Balance (Subcontracted)
When you partner with Collins Mechanical, you get more than a quick fix.
You get a trusted HVAC team committed to doing things the right way — with reliable systems, better indoor air quality, lower energy bills, and long-term support.
Let’s Get to Work on Your Comfort
Whether you’re a homeowner needing a quick AC repair, a builder needing help with permitting and installation, or a business owner looking for a reliable maintenance partner — Collins Mechanical is ready to deliver.
We’re known for:
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Upfront, honest pricing — no surprises
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Veteran-owned values — we do what we say, and we do it well
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Fast response times — because downtime costs money
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Certified technicians — equipped, trained, and respectful
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Work that lasts — whether it’s a quick tune-up or a full system install
Need to request residential or commercial services?
Schedule a visit and we’ll dispatch a technician to inspect, diagnose, and repair your system.
Planning a new build or installation project?
Give us a call and let’s talk through the details.
Greenville HVAC Tips & Advice
Learn what Greenville homeowners need to know about heating, cooling, and comfort. Collins Mechanical shares practical guides and local expertise to help you make smart HVAC decisions.
Need More HVAC Tips? See All Posts
Proudly Serving Upstate South Carolina
We serve residential customers throughout the Greater Greenville–Spartanburg area, including Berea, Boiling Springs, Duncan, Five Forks, Fountain Inn, Gray Court, Greenville, Greer, Inman, Lyman, Moore, Pelzer, Piedmont, Powdersville, Reidville, Roebuck, Simpsonville, Spartanburg, Taylors, Travelers Rest, and Woodruff.
We also serve commercial customers across all of the South Carolina Upstate, including Greenville, Spartanburg, Anderson, Clemson, Union, and Greenwood. No matter where your home or business is located, you can count on Collins for reliable, high-quality HVAC solutions.
