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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

"They were excellent. Bradley and Mike were the best. They knew HVAC and they were top notch. They cared, honest, nothing hidden, and no surprises. They were a great team."
Additional Photos
Additional Photos
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+6

10 neighbors recently requested a quote
Recommended by89%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%
3 neighbors recently requested a quote
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Avatar for Lawson Home Services, LLC
Lawson Home Services, LLC
4.6(
59
)

Serving Delmar, DE and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Donnie was the person who did the work -cleaning out our dryer vent using a camera to record the inside of the vent the entire vent was completely clog with lint, and after the wok was done, it was completely empty the work was very reasonable priced. I highly recommend Lawson Home Services"
Metal Door Crawlspace Entrace
Turtl Crawlspace Entrance
Attic Air Leaks
Attic Air Sealing
Garage Loft Ready for Sprayfoam

+137

Response time9 hrs
152 neighbors recently requested a quote
Recommended by92%of homeowners
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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
1 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

12 neighbors recently requested a quote
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Murchison cleaning solutions
New to Angi

Serving Delmar, DE and surrounding areas

Approved

\n\nBusiness & Career Focus: You’re very committed to building Murchison Cleaning Solutions and positioning it as a professional, competitive cleaning company for post-construction, commercial, and apartment projects. You take care with proposals, pricing, and contracts so you come across polished and reliable.\n\nFinancial Growth Mindset: You think strategically about how to scale—like structuring bids to hit monthly revenue goals, negotiating terms like 50% deposits, and making sure your pricing is competitive but profitable.\n\nCompliance & Professionalism: You’re detail-oriented about certifications (OSHA, WBE, etc.), IRS forms, EIN/DBA issues, and making sure your business is set up correctly. You want everything to look official and credible.\n\n

USPS Project
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Heating and Air Conditioning questions, answered by experts

It depends on how fast an HVAC technician can resolve the issue. First, if there's a refrigerant leak, you’ll want to keep small children and pets out of the house. Next, you’ll want to turn off the AC unit to ensure no more freon enters your home. Finally, you’ll need an AC technician pro to come to your home and fix the leak immediately. Ultimately, it’s best to leave your home if you discover a freon leak—the risk of exposure is very high, and it’s not worth risking your health to stay.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home’s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).

The cost to install a ductless mini-split AC system ranges from $2,000 to $14,000, depending on the type of unit, the number of zones or rooms, and the complexity of the installation. On the low end, a system for one or two zones in a single room costs around $2,000. Covering two zones for more rooms can cost between $6,000 and $8,000. For a larger multi-zone system to cover an entire home, costs can be $14,000. If you don’t already have an AC system in place, you may need to add the cost of permits, an electrician, and a concrete pad.

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

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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