*The Angi rating for Heating And Air Conditioning Service companies in Dover, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Dover, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on January 14, 2026
Serving Dover, NJ and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Can't speak highly enough of Ali. Prompt, courteous, but most importantly able to get to the bottom of problem without ripping off the customer. AN HONEST MAN! After many years of searching, I've finally found an HVAC repair company that I can trust! Happy days are hear again."
+1
Serving Dover, NJ and surrounding areas
Approved
In business since 1958
Free estimates
Emergency services offered
"We searched for a long time for a company to replace a current central A/C which was not particularly old, but the handler up in the attic was nearing the end of life so we had to replace the whole system. Speer seemed most knowledgeable, offered a product we were comfortable with (Amana) and were also professional and prompt. Of note we had a troublesome smart thermostat which required that they return multiple times to address - they did not consider the job done until this was fully operational. Overall we were very pleased, but the summer will tell!"
Serving Dover, NJ and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"ALPINE HAS BEEN SERVICING THE EQUIPMENT THEY INSTALLED FOR MORE THAN 6 YEARS. TWO HVAC UNITS AND A GENERATOR. SERVICE HAS BEEN EXCELLENT AND ANY PROBLEMS WITH THE UNITS HAVE BEEN RESOLVED QUICKLY. I PLAN ON USING ALPINE WELL INTO THE FUTURE."
+22
Serving Dover, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"Ray’s HVAC is reliable and dependable."
+1
Serving Dover, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Emergency services offered
Warranties offered
"I recently hired Kyle to service my central air conditioner. What a find!!!! I will absolutely hire him again. He is bright, personable and explains every step of his process. You can tell he is passionate about HVAC, and enjoys his work. He was able to quickly evaluate my system and get it back up and running. My system is old and really needs to be replace but Kyle was able to keep in running for another year... Highly recommend this company"
+22
Serving Dover, NJ and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"My vents were cleaned by Juan. He was very professional and knowledgeable. I feel very good about this company and will hire again."
+13
Serving Dover, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Free estimates
Emergency services offered
"Most professional service around who will be absolutely upfront with what work they are going to do and the price. The work was perfect and absolutely no hidden fees. I will be using them going forward as my main hvac and plumbing service."
+20
Serving Dover, NJ and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Desmond is a very professional, knowledgeable and tact! Well priced for service and a regular down to earth, no bs, straight to the point and honest man. I appreciated his work and how he took the time to explain what was the issue and the how s and whys of the heating system. I will now use him for all my hvac needs and he s already gonna come back to do more work that I need done! Gentleman all around."
+24
Serving Dover, NJ and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Sam and his team were great. They will be doing all future HVAC work for me. Thank you!"
+17
Serving Dover, NJ and surrounding areas
Approved
In business since 2000
Emergency services offered
Warranties offered
"They are simply the best. They are truly professionals, courteous , punctual and very competitive in pricing. I am very happy with the work they did on my system. I strongly recommend them for any HVAC work."
+12
Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.
While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.
The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.
From average costs to expert advice, get all the answers you need to get your job done.
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