J & K Air Conditioning

Name: J & K Air Conditioning
Address: 18775 N Frederick Ave #N, Gaithersburg, MD, 20879, US
Telephone: 301-428-0870
Price range: $
Rating: 4.5

18775 N Frederick Ave #N
Gaithersburg, MD 20879 301-428-0870

Checkbook's Top Rating
Quality
Price

109 ratings
93% gave a "superior" overall rating
- Prices 22% lower than average
Compare 183 nearby heating & air-conditioning contractors
"We love J& K they have been our go to for MANY years!"
Read More Comments

Prices for J & K Air Conditioning

Checkbook's price comparison score what is this?

Minimum charge for a service call

What the minimum charge includes

Consumer Ratings for J & K Air Conditioning — 109 Ratings

Percent of customers who rated service "superior" for: | = average for all heating & air-conditioning contractors

Doing work properly what is this?

Starting and completing work promptly what is this?

Letting you know cost early what is this?

Advice on service options and costs what is this?

Overall quality what is this?

Overall quality: percent who rated company "adequate" or "superior" what is this?

Complaints for J & K Air Conditioning

Number of complaints with local government consumer agencies and (complaint rate) what is this?

Number of complaints with BBB and (complaint rate) what is this?

Areas Served by J & K Air Conditioning:

Howard Co.
Montgomery Co.
Prince George's Co.

Equipment company services/installs:

Humidifiers
Ductless mini-split systems
Air ducts (sheet metal work)
Oil furnaces
Central air conditioners

Electric furnaces
Gas furnaces
Hot water heating systems
Hot water systems pipes & radiators
Electronic air cleaners

Heat pumps

Consumer Comments for J & K Air Conditioning

Consumer from Bethesda, MD
Jun 28, 2025

We love J& K they have been our go to for MANY years!

Consumer from Silver Spring, MD
Mar 15, 2025

Have used this company for years at two different homes. They are excellent.

Consumer from ROCKVILLE, MD
Oct 17, 2024

I have used J&K for years. I would not hesitate to call them for any HVAC needs.

...and 35 more consumer comments for J & K Air Conditioning

You won't find anything else like Checkbook

Nonprofit and independent
Takes no advertising or referral fees
Ratings and reviews by surveyed Consumers' Checkbook and Consumer Reports local subscribers
Thousands of undercover price comparisons
Complaint counts from local consumer agencies and attorney general offices

Heating & Air-Conditioning Contractors Articles

Where to Find Good HVAC Help

To make sure your heating and air-conditioning systems work when needed, they must be properly installed and maintained. We’ve rated area heating and air-conditioning services for quality and price.

What to Do If You Need HVAC Repairs

If you need repairs to heating or air-conditioning equipment, our ratings of local businesses will help you find a good company to perform them.

Choosing New HVAC Equipment and Getting It Installed Properly

How well a new HVAC system performs, and how much it costs, depends heavily on its design and the quality of installation. It’s important to make the right decisions—and there are many to make. You also must make sure to get a fair contract.

HVAC Equipment Features to Consider

If you are installing new equipment, in addition to making choices about energy efficiency, you will need to decide whether to pay extra for various features. Here is a summary of the types of add-ons.

Maintaining Your HVAC Equipment

The most important maintenance task for HVAC systems is something you can do yourself—replacing the air filter. Check your filter monthly. When a filter has a matting of dirt—i.e., it’s difficult to see through when you hold it up to a light—it’s time to replace it.

HVAC Maintenance Contracts Are Usually Bad Buys

Rather than paying for individual maintenance visits and repair jobs, you might consider getting a service contract for air-conditioning and/or heating equipment. Many companies try to persuade customers to enter into such contracts.