Get matched with top central a/c service or repairers in Worcester, MA

With over 20 years of experience, NJ Niemann HVAC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"He reattached the air condition hose to the vent but never came back with the part he said I needed and would not return my calls. He never finished the job. I hired someone else to complete his work. Beware."

"Shawn Thompson did a great job diagnosing our AC issue and repairing it promptly. He is an above-and-beyond the call of duty kind of guy who came out after hours to help us out during a heat wave. I couldnâ t recommend him more highly."

"R&B are great! They were able to come out and see the job and give me a price. They came back a week or so later and knocked it out in under 2 hours."

"Very professional and very good work, super recommended!!"

"I had an excellent experience with Jojo when she inspected our old AC unit. Her pricing was very reasonable compared to quotes from other well-known companies. From the start, Jojo was professional, knowledgeable, and transparent. Her communication stood out—she explained everything clearly, answered our questions patiently, and ensured we were comfortable with every decision. Based on her honest assessment, we moved forward with replacing our old AC, and the results were excellent. The new system works flawlessly, and the entire process was smooth and stress-free. Jojo went above and beyond to meet our needs, and her professionalism truly stood out. I highly recommend Jojo’s services and will definitely hire her again for future needs."

When it comes to heating and cooling issues, we're who your neighbors call. Call us today to schedule your service!

"First time using Messina Heating & Cooling and we could not be happier with the results. Josiah was extremely polite, professional, and very knowledgeable. He paid great attention to detail and took his time to explain everything. So nice to have an honest and dependable service technician. Pricing is very fair and reasonable. Highly recommend - will definitely be using them for all future HVAC needs."

"They were okay for the job."

"Happy with service. Engineer showed app on time, checked out. The system addressed all my concerns did not do what's unnecessary, great service."