10 Best HVAC Companies in London, OH

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Last Updated: February 25, 2025

On average, 55% of energy use in American homes goes toward heating and cooling, according to the U.S. Department of Energy. It's important that the heating and cooling systems in your London home are functioning optimally, so that you don't spend more than you need to.

Our guide to London's top HVAC companies can help you get your system into top shape, allowing you to save money while staying comfortable.

Top 10 Best HVAC Companies in London

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Dor-Mar Pataskala Heat & Cool

Dor-Mar Pataskala Heat & Cool Logo

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User Rating

24 Front St Suite 207, Pataskala, OH 43062 (740) 564-6241 dormarhvac.com

Clear pricing policy

Reliable customer support

Informative resources

Prompt service delivery

Free quotes

Services Offered

Ductless
Ac repair
Furnace installation
Filtration
Boiler installation
Indoor air quality
Emergency services
Ac installation
Furnace repair
Inspection
Duct cleaning
Ventilation
Maintenance

Dor-Mar Heating And Air

Dor-Mar Heating And Air Logo

Our Rating

User Rating

20 S 3rd St Suite 210, Columbus, OH 43215 (614) 238-6689 dormarhvac.com

Informative resources

Reliable customer support

Free quotes

Clear pricing policy

Services Offered

Furnace installation
Indoor air quality
Ventilation
Inspection
Furnace repair
Boiler installation
Maintenance
Emergency services
Ac repair
Ductless
Filtration
Ac installation
Duct cleaning

Dor-Mar Reynoldsburg Heating and Air Conditioning Service

Dor-Mar Reynoldsburg Heating and Air Conditioning Service Logo

Our Rating

User Rating

7127 E Main St, Reynoldsburg, OH 43068 (614) 365-1579 dormarhvac.com

Clear pricing policy

Reliable customer support

Informative resources

Free quotes

Services Offered

Inspection
Furnace installation
Indoor air quality
Boiler installation
Maintenance
Emergency services
Furnace repair
Ac repair
Ductless
Ac installation
Ventilation
Filtration
Duct cleaning

Watkins Heating & Cooling

Watkins Heating & Cooling Logo

Our Rating

User Rating

480 Congress Park Dr, Dayton, OH 45459 (937) 709-4520 watkinsheating.com

Prompt service delivery

Informative resources

Clear pricing policy

Free quotes

Reliable customer support

Services Offered

Ac repair
Ac installation
Ductless
Furnace repair
Boiler installation
Indoor air quality
Emergency services
Furnace installation
Filtration
Boiler repair
Maintenance
Inspection

Shafer Heating & Cooling, LLC

Shafer Heating & Cooling, LLC Logo

Our Rating

User Rating

970 W Main St, Hillsboro, OH 45133 (937) 466-2755 shaferhvac.us

Prompt service delivery

Free quotes

Reliable customer support

Informative resources

Clear pricing policy

Services Offered

Boiler installation
Radiant heating
Filtration
Ac repair
Ac installation
Inspection
Ventilation
Duct cleaning
Maintenance
Emergency services
Indoor air quality
Furnace installation
Ductless

Dor-Mar Dublin Heating and Air Service

Dor-Mar Dublin Heating and Air Service Logo

Our Rating

User Rating

216 Bradenton Ave, Dublin, OH 43017 (614) 545-8939 dormarhvac.com

Free quotes

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Boiler installation
Ventilation
Ac installation
Ductless
Furnace installation
Emergency services
Furnace repair
Indoor air quality
Duct cleaning
Maintenance
Ac repair
Filtration

Dor-Mar Westerville Heating and Air Repair

Dor-Mar Westerville Heating and Air Repair Logo

Our Rating

User Rating

924 Eastwind Dr #2, Westerville, OH 43081 (614) 381-1540 dormarhvac.com

Reliable customer support

Free quotes

Informative resources

Clear pricing policy

Services Offered

Furnace repair
Furnace installation
Ac installation
Duct cleaning
Ductless
Filtration
Emergency services
Maintenance
Boiler installation
Ventilation
Ac repair
Indoor air quality

Dor-Mar Grove City Heating and Air Service

Dor-Mar Grove City Heating and Air Service Logo

Our Rating

User Rating

4048 Parkmead Dr, Grove City, OH 43123 (614) 595-3098 dormarhvac.com

Reliable customer support

Informative resources

Free quote

Clear pricing policy

Services Offered

Duct cleaning
Indoor air quality
Ventilation
Maintenance
Boiler installation
Furnace installation
Filtration
Ac installation
Furnace repair
Ductless
Emergency services
Ac repair

Arctic Air Service Now Heating & Air Conditioning

Arctic Air Service Now Heating & Air Conditioning Logo

Our Rating

User Rating

9789 Karmar Ct, New Albany, OH 43054 (614) 818-0807 servicenow4you.com

Informative resources

Reliable customer support

Clear pricing policy

Prompt service delivery

Free quotes

Services Offered

Furnace installation
Ac installation
Ductless
Smart home integration
Zoning systems
Indoor air quality
Maintenance
Duct cleaning
Ac repair
Furnace repair
Boiler installation

Hauck Bros., Inc. Heating and Cooling

Hauck Bros., Inc. Heating and Cooling Logo

Our Rating

User Rating

1974 Commerce Cir, Springfield, OH 45504 (937) 325-0636 hauckbrothers.com

Clear pricing policy

Informative resources

Prompt service delivery

Reliable customer support

Services Offered

Ductless
Ventilation
Ac installation
Furnace repair
Ac repair
Filtration
Indoor air quality
Furnace installation
Maintenance
Boiler installation
Emergency services
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

If your HVAC system is having issues or getting near the end of its lifespan, it likely needs servicing or replacement from an HVAC company. Watch for these indicators your system needs service:

  • Poor air circulation or uneven heating/cooling
  • Frequent breakdowns and need for repairs
  • Rust, cracking, or corrosion
  • Temperature control issues or thermostat malfunctions
  • Refrigerant leaks
  • Higher than normal energy bills
  • Odd noises when the system turns on
  • An HVAC system that's over 15 years old

If you see any of these HVAC issues, have a technician inspect your system. A local professional can identify problems and decide whether fixing or replacing your HVAC unit is the correct solution.

Cost of HVAC Installation and Maintenance in London

Your HVAC installation or maintenance cost changes depending on the style of unit. Common HVAC unit types include the following:

  • Split or mini-split: Homes without ductwork for centralized climate control frequently have split or mini-split HVAC systems. These systems consist of interior units in each room to regulate temperature, which all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions much like a standard split system, but is able to utilize either gas or electricity for power.
  • Heat pump: Heat pumps work by transferring warm and cool air between your home and the outdoors. These systems don't create heat or air conditioning themselves, and are more suited to more moderate climates.
  • Packaged heating and air: Packaged HVAC systems are often a good option for smaller homes. Packaged systems consist of a single heating and cooling unit, typically located in an attic or basement. This unit tends to be compact, efficient, and easy to maintain.

HVAC maintenance costs vary based on the specific services needed. HVAC systems can be complex and potentially require a number of services. Fees for typical jobs are as follows:

HVAC Unit TypeCost
Split$1,845-$4,703
Hybrid Split$3,738-$6,886
Heat Pump$2,894-$29,491
Packaged Heating and Air$242-$404

Ways to Save Money on HVAC Costs

Fixing your HVAC by repairing or replacing parts when needed is crucial, but can be expensive. Thankfully, there are steps you can take to slow the wear and tear on your system.

  • Monitor for potential problems. Monitoring your system for issues — for example, by checking your thermostat and energy bills regularly — helps you get ahead of problems before they get too expensive.
  • Change filters regularly. Air flows best through your HVAC system when you replace or clean the filters every 1–3 months. Also try not to let debris pile up on the external sections of your HVAC.
  • Keep your system clean. Cleaning your ductwork, grills, indoor evaporator coil, and condenser fan blades regularly helps your HVAC system work efficiently and reduces the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system when it begins to look dirty.
  • Change the position of your blinds seasonally. During winter, leaving your blinds open allows your home to benefit from passive solar heating. In the summer, keeping your blinds shut helps to block out heat. Doing both lowers the amount of work your HVAC system must perform.
ServiceCost
Filter Replacement$61-$161
Condensor Cleaning$1,211-$3,633
Thermostat Repair$81-$202
Ductwork Cleaning$388-$969

How To Choose a Local HVAC Company

Knowing what to look for in an HVAC company is crucial for a successful project. Look for an experienced, licensed contractor that can give you peace of mind and make sure your system provides reliable heating and air conditioning for your home.

Compare Multiple Bids

Get quotes from at least three HVAC providers. Explain your issues and ask if specialists can inspect your system in person. Review each provider's diagnoses, recommended solutions, estimated cost, timelines, and warranties. Avoid contractors that pressure you or demand payment before work.

Check Credentials

Look for an HVAC company that employs skilled technicians with the necessary licensure and training. HVAC contractors in all states need to obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled at the state level.

HVAC contractors in Ohio are licensed by the Ohio Construction Industry Licensing Board. To obtain a license, contractors need to have at least five years of experience, possess a minimum amount of contractor liability coverage, and pass an exam. Specific jurisdictions may have additional requirements. You should also check reviews and complaints on sites like Yelp, Google Reviews, and the Better Business Bureau (BBB). Choose a company with positive reviews and testimonials about fantastic customer experiences.

Understand Work Details

Make sure you know the details of your project before starting. For HVAC repairs, have your provider specify which parts need replacement and why. Get confirmation that your technician will clean and test the system after the repair to ensure that everything works. When getting a replacement, ask the contractor to explain the new HVAC system brand, model, features, energy efficiency, and estimated installation time. Before work begins, you should understand the process your provider will use to properly size the system for your home and the price you'll pay.

Compare Warranties

Trustworthy HVAC companies provide warranties for their services. Broader coverage is better, so make sure to compare warranties between providers. Choose the one that gives you the most coverage at a fair cost.

Get Quote in Writing

Always get HVAC quotes in writing before work begins. A thorough quote will cover costs for both materials and labor. Make sure that you understand all terms before signing the contract.

Frequently Asked Questions About HVAC in London, OH

Typically, you should have your HVAC system inspected twice a year. After an inspection, your technician will tell you what, if any, services are required. You should also have your system inspected and serviced if you notice any new issues, such as leaks, strange noises, or unusual smells. If you have ductwork in your home, it should be serviced every few years.

The best times to have your HVAC system inspected are the spring and fall. Technicians are less busy during these times, so it will be easier to get an appointment. This also ensures that your system is ready for the summer and winter, when it typically sees the most use.

You can save energy throughout the year by reducing the amount of work it takes for your HVAC system to maintain the temperature of your home. Always keep your thermostat as close to the outside temperature as you can, and try to adjust it only a few degrees at a time. You might also consider installing a smart thermostat.

It takes between one and three days to have your HVAC system installed or replaced. If you only need a furnace or a single air conditioning unit, this might take anywhere from a few hours up to two days. This timeline can be determined by the size of your home, the accessibility of your system, and any new issues your technician discovers.

For a 2,000-square-foot home, you'll need between 2.5 and 5 tons of air conditioning capacity. If your home is larger than 1,000 square feet, central air will usually be more effective for cooling than window units.

For a 2,000-square-foot home, you should also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units).

Your HVAC company might provide financing options through a third-party lender, or you may be able to obtain your own loan. It's a good idea to discuss payment options with a financial advisor and your HVAC company to make sure that you're choosing the best option for you.

There are several ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and change or clean your air filters regularly.
  • Schedule regular inspections to take care of problems as they arise.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you don't want to or can't buy one, try keeping your inside temperature as close to the outside temperature as you can.
  • When it comes time to replace any part of your HVAC system, explore Energy Star-certified or similar environmentally friendly options.

Other London, OH Home Services

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