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TRUSTED BY DELMAR, DE HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon151
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Delmar, DE

*The Angi rating for Heating And Air Conditioning Service companies in Delmar, DE 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 Delmar, DE 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 February 18, 2026

Find Heating and air conditioning pros in Delmar

Avatar for Major league hvac
Major league hvac
5.0(
20
)

Serving Delmar, DE and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Had a complete HVAC system replacement. Through the whole process, they did what they said they would do and within the time frame that I was told. They responded timely and answered all my questions and concerns along the way. I am an impressed customer and delighted to recommend Major League HVAC."
Additional Photos
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+6

10 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Perfect Degree
Perfect Degree
4.6(
63
)

Serving Delmar, DE and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Was contacted within 24 hours of submitting my request. Larry came out the same week (Friday) by Monday I had a reasonable quote! New HVAC system installed in one day. Employers were knowledgeable, professional, and quick! Great people to deal with, highly recommended!!!"
Response time2 days
5 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Shore2shore heating and cooling
Shore2shore heating and cooling
5.0(
14
)

Serving Delmar, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"Shore 2 Shore did a great job installing our HVAC system in Centreville Maryland. I would highly recommend them."
Response time1 day
Response rate98%
8 neighbors recently requested a quote
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Avatar for Mike's Home Improvement
Mike's Home Improvement
5.0(
3
)

Serving Delmar, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Warranties offered

"Awesome job completed, showed up every day until the job was done and work was done beautifully"
Addition
Addition
Addition
Addition
Addition

+20

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Horizon Services, LLC (DES)
Horizon Services, LLC (DES)
5.0(
1
)

Serving Delmar, DE and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Experience The Horizon Difference.\n\nOn-Time Service. Up-Front Pricing. And The Job Done Right and Clean the First Time. GUARANTEED!\n\nHorizon Services is the region's largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizons Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.\n

Horizon employee shaking hands with homeowner
Horizon HVAC filter
Horizon HVAC tech testing Condenser
New HVAC Install
Horizon employee with Condenser

+2

11 neighbors recently requested a quote
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Avatar for Air Temp Solutions
Air Temp Solutions
4.7(
59
)

Serving Delmar, DE and surrounding areas

In business since 2011

Emergency services offered

Credit card accepted

"John G. is probably the most courteous, responsive, and knowledgeable contractor I've ever worked with.  Class A service all around with fair and competitive pricing.  If I didn't move from the area, John G. would be first on my list for any future HVAC maintenance needs.  Really appreciated his responsiveness given my particular situation - my furnace stopped working the very last day we vacated our house for sale.  John G. got it fixed next business day!"
Recommended by91%of homeowners
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Heating and Air Conditioning questions, answered by experts

For the most part, you should leave your AC fan in “auto” mode so that it only runs during a heating or cooling cycle. Keeping it in this position uses less energy, which equals lower utility bills. However, there are some situations where it’s better to leave your AC fan on, including if you have allergies or there are lots of people in your home.

Don’t run your AC with a wet filter. It can cause your AC to work too hard, which will run up your utility bill and cause extra wear and tear on the system. You could also spread moisture and mold throughout your house. Turn off the AC, remove the wet filter, and check for cracks or clogs. Fix the problem (with a pro’s help, if you need it), and put a dry filter in place before you turn the system back on.

If possible, avoid placing furniture in front of a return air vent. A blocked air vent can cause your HVAC system to use more energy, which in turn can lower the life span of your unit and raise your energy bill. Furniture can also trap hot or cold air, damaging your furniture or appliances. 

Professional duct installers suggest leaving between six and 12 inches of space in front of an air return vent. If you must place furniture in front of a return air vent, try to aim for putting furniture over a floor vent instead of in front of a wall vent, and avoid draping curtains over any vent system.

The general rule of thumb for figuring out how much AC tonnage you need in your home is that for every 500 to 600 square feet of space you need to cool, you’ll need one ton of AC cooling power. So, a 1,000-square-foot home will need 2 tons of AC power. 

It’s normal to hear a low humming sound as air moves through your vents. Most of the time, you probably won’t even notice it. However, if that sound becomes disruptive or if you hear more concerning noises (such as rattling, clicking, banging, hissing, or grinding), there might be a problem with your HVAC system.

The Delmar, DE homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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