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    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Greenwich - Updated Nov 2026

Avatar for Great Lakes Electric
Great Lakes Electric
4.5(
24
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - RepairCentral A/C - Install+13 more

Serving Greenwich, OH and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

Proudly serving Erie and Huron Counties since 1996.\n\nFor 30 years, Great Lakes Electric has been a trusted provider of electrical services throughout North Central Ohio. We take pride in delivering safe, reliable, and high-quality workmanship for homeowners and businesses alike.\n\nOur team of skilled, trained electricians specializes in residential and commercial electrical services, HVAC, generators, home lighting, and more. We are committed to completing every project safely, on time, and within budget.\n\nBuilt on a foundation of quality workmanship, dependable service, and lasting customer relationships, Great Lakes Electric is proud to serve the communities where we live and work.\n\nAll of our work is backed by a 100% satisfaction guarantee.

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+3

35 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ZEL Electric
ZEL Electric
New to Angi
Electrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - RepairThermostat - Install or Replace

Serving Greenwich, OH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

⚡ Welcome to ZEL ELECTRIC ⚡\n\nWe’re a licensed & insured electrical contractor proudly serving Medina County and surrounding areas.\n\nFrom service upgrades and panel work to lighting, EV chargers, and residential or commercial electrical projects, we focus on clean, safe, and code-compliant work done right the first time.\n\n📞 Call or message us for a free estimate\n216-318-3381\n\n⚡ Driven by Energy. Built on Trust.

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Heating and Air Conditioning FAQs, answered by experts

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

AC evaporator coils should be cleaned at least once per year to keep your unit in good condition. For optimal performance, consider cleaning them twice a year—once before and once after the main cooling season. More frequent cleanings may be necessary for older systems, units with performance issues, or those in climates with high levels of humidity, dust, and dirt.

Unfreezing an AC unit is not a DIY project unless the problem is a dirty air filter. Changing out an air filter is easy for homeowners, but otherwise, trying to repair ductwork, refill refrigerant, or replace a blower fan motor are tasks best left to the pros. Otherwise, you could cause further damage to your cooling system or even harm to yourself.

The right type of HVAC system will depend on several factors, including your climate, budget, preferences, and existing HVAC setup. For example, if you live in an area that experiences extreme weather, then a split system would likely be the best option. Or, if budget is a concern, consider installing a ductless system in just one room.

The Greenwich, OH 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.