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TRUSTED BY LEXINGTON, MO HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon11
    Verified heating and air conditioning services reviews

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

Avatar for First Mate Heating & Cooling
First Mate Heating & Cooling
4.9(
24
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+48 more

Serving Lexington, MO and surrounding areas

In business since 1971

Emergency services offered

Credit card accepted

"These guys are awesome! We've used them for the 20-some years we've lived in Lee's Summit. They are always responsive and punctual. They get the issue fixed the first time without me having to call them back. Pleasant and professional. Quality work. Their rates are reasonable. We have purchased air conditioners twice from them and furnace once. They did all the paperwork for the rebates for us. I called them last week because the air conditioner didn't seem to be cooling properly. He spent about an hour looking for the problem, didn't see anything broken, but cleaned out an extremely dirty condenser - which fixed the problem and we've been cool ever since."
Recommended by95%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

Winterizing can still help you save money on energy costs and help prepare your AC for its work next year when you turn it back on. We suggest planning for at least some maintenance, even if winters are mild in your area.

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

In some cases, yes, portable air conditioners are worth buying. They’re a relatively affordable option for cooling small spaces. (On average, they cost between $100 and $500 per unit.) Plus, they’re easy to set up, and you can move them around to cool various parts of your home as needed. However, they aren’t the most efficient AC option, and they tend to be noisy.

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.

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 Lexington, MO 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.