Top-rated swamp cooler installers and replacers.

Get matched with top swamp cooler installers and replacers in Annapolis Junction, MD

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Swamp cooler installers and replacers in Annapolis Junction

Avatar for MARYLAND HEATING & COOLING

MARYLAND HEATING & COOLING

4.94(
89
)
•Approved Pro

MARYLAND HEATING & COOLING

4.94(
89
)
•Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
25 years of experience

Welcome to Maryland Heating & Cooling, a family-owned & operated business located in Ellicott City, MD. With over 25 years in business, we are very proud to be recognized as one of the top-rated HVAC professionals in Howard County and surrounding areas. With a commitment to customer satisfaction, our team of skilled licensed technicians are dedicated in providing you with reliable heating and cooling solutions. We specialize in system replacement, repairs, maintenance and indoor air quality products. Along with our service, you can always count on Maryland Heating & Cooling to provide you with quick service, fair pricing and an honest evaluation of your HVAC system. We look forward to helping you with your HVAC needs.

"Couldn't be more pleased. Quick to respond, great communication and super friendly and professional service. Highly recommend"

Edward C on August 2025

Welcome to Maryland Heating & Cooling, a family-owned & operated business located in Ellicott City, MD. With over 25 years in business, we are very proud to be recognized as one of the top-rated HVAC professionals in Howard County and surrounding areas. With a commitment to customer satisfaction, our team of skilled licensed technicians are dedicated in providing you with reliable heating and cooling solutions. We specialize in system replacement, repairs, maintenance and indoor air quality products. Along with our service, you can always count on Maryland Heating & Cooling to provide you with quick service, fair pricing and an honest evaluation of your HVAC system. We look forward to helping you with your HVAC needs.

"Couldn't be more pleased. Quick to respond, great communication and super friendly and professional service. Highly recommend"

Edward C on August 2025

Avatar for Glenmont Heating & A/C

Glenmont Heating & A/C

4.66(
61
)
•Approved Pro

Glenmont Heating & A/C

4.66(
61
)
•Approved Pro
Customers say: Super punctual
25 local quotes requested
41 years of experience

Since 1984, Glenmont HVAC has been dedicated to treating every customer like family. As a long-standing local company, we’ve built our reputation on integrity, craftsmanship, and dependable service. From quick repairs to full system installations, our certified team provides comfort solutions designed for long-term peace of mind.

"Not Recommended for Thermostat Replacement — Unreasonable and Unfair $700 Charge I do not recommend Glenmont Air Conditioning & Heating for thermostat replacement work. I was charged $700 for a simple thermostat replacement, which I believe was unreasonably high and unfair. I was under the impression that the quoted estimate represented the maximum expected cost only if the technician had to perform additional wiring or complex installation work. If you want to install an Ecobee or any other type of thermostat, you can simply YouTube the installation, which provides step-by-step instructions on how to unwire, label, and rewire to the new thermostat. For my installation, I was under the impression that additional wiring might be needed, but it turned out to be a straightforward swap of the old thermostat with a new Ecobee unit, a process that took only about 15 minutes. Despite that, I was still charged the full amount. The Ecobee Premium thermostat itself costs around $250, meaning they charged nearly $500 just for labor, regardless of how simple or quick the installation is. To make matters worse, the installation only comes with a 30-day warranty, which hardly justifies such a high price. I tried to communicate and explain that this charge was unreasonably high and unfair, but they simply said, “It is what it is.” If you’re considering a thermostat installation, I strongly suggest hiring a professional through Thumbtack, where qualified experts can do the same job for under $150 with transparent pricing and good service. I expected fairness, honesty, and reasonable pricing from Glenmont, but unfortunately, that was not my experience."

Soheil R on October 2025

Since 1984, Glenmont HVAC has been dedicated to treating every customer like family. As a long-standing local company, we’ve built our reputation on integrity, craftsmanship, and dependable service. From quick repairs to full system installations, our certified team provides comfort solutions designed for long-term peace of mind.

"Not Recommended for Thermostat Replacement — Unreasonable and Unfair $700 Charge I do not recommend Glenmont Air Conditioning & Heating for thermostat replacement work. I was charged $700 for a simple thermostat replacement, which I believe was unreasonably high and unfair. I was under the impression that the quoted estimate represented the maximum expected cost only if the technician had to perform additional wiring or complex installation work. If you want to install an Ecobee or any other type of thermostat, you can simply YouTube the installation, which provides step-by-step instructions on how to unwire, label, and rewire to the new thermostat. For my installation, I was under the impression that additional wiring might be needed, but it turned out to be a straightforward swap of the old thermostat with a new Ecobee unit, a process that took only about 15 minutes. Despite that, I was still charged the full amount. The Ecobee Premium thermostat itself costs around $250, meaning they charged nearly $500 just for labor, regardless of how simple or quick the installation is. To make matters worse, the installation only comes with a 30-day warranty, which hardly justifies such a high price. I tried to communicate and explain that this charge was unreasonably high and unfair, but they simply said, “It is what it is.” If you’re considering a thermostat installation, I strongly suggest hiring a professional through Thumbtack, where qualified experts can do the same job for under $150 with transparent pricing and good service. I expected fairness, honesty, and reasonable pricing from Glenmont, but unfortunately, that was not my experience."

Soheil R on October 2025

Avatar for TriState Home Services

TriState Home Services

4.73(
181
)
•Approved Pro

TriState Home Services

4.73(
181
)
•Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
172 local quotes requested

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Great service very prompt and easy to work with."

Randy W on May 2025

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Great service very prompt and easy to work with."

Randy W on May 2025

Avatar for Beltway Air Conditioning, Heating & Plumbing

Beltway Air Conditioning, Heating & Plumbing

4.64(
39
)
•Approved Pro

Beltway Air Conditioning, Heating & Plumbing

4.64(
39
)
•Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
24 local quotes requested

Beltway Air Conditioning & Heating is locally owned & operated out of Hanover, MD. We are Lennox Premier Dealers & are BBB accredited with A+ ratings & reviews - We provide services & installations within a 50 mile radius of home base. Our team specializes in installing and servicing heating, cooling & ventilation equipment, whether it is a small A/C repair or a commercial rooftop - our team is trained to take care of all your HVAC needs! We bring extensive experience and professionalism to every home and commercial building. Our work reflects our passion! The Best Price + The Best Work = Your Best Value. We have uniformed & well-trained staff that under goes background checks and drug screening upon hire and randomly. All of our service professionals are also licensed to work in the state of Maryland.

"Horrible company, horrible service, still waiting after 14 days for an update. Claimed they ordered part, then found out they didn’t order the part, then they schedule an appointment and didn’t show up. Dispatch was rude and they didn’t return calls and messages. Same company misdiagnosed my mom’s HVAC system and she ended up getting it replaced only to find it still kept shutting off because it was a gas regulator that was the problem all along."

K. Pearson B on June 2025

Beltway Air Conditioning & Heating is locally owned & operated out of Hanover, MD. We are Lennox Premier Dealers & are BBB accredited with A+ ratings & reviews - We provide services & installations within a 50 mile radius of home base. Our team specializes in installing and servicing heating, cooling & ventilation equipment, whether it is a small A/C repair or a commercial rooftop - our team is trained to take care of all your HVAC needs! We bring extensive experience and professionalism to every home and commercial building. Our work reflects our passion! The Best Price + The Best Work = Your Best Value. We have uniformed & well-trained staff that under goes background checks and drug screening upon hire and randomly. All of our service professionals are also licensed to work in the state of Maryland.

"Horrible company, horrible service, still waiting after 14 days for an update. Claimed they ordered part, then found out they didn’t order the part, then they schedule an appointment and didn’t show up. Dispatch was rude and they didn’t return calls and messages. Same company misdiagnosed my mom’s HVAC system and she ended up getting it replaced only to find it still kept shutting off because it was a gas regulator that was the problem all along."

K. Pearson B on June 2025

Avatar for Tim Kyle Electric Heating & Cooling

Tim Kyle Electric Heating & Cooling

4.94(
344
)
•Approved Pro

Tim Kyle Electric Heating & Cooling

4.94(
344
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
64 local quotes requested

At Tim Kyle Electric, Heating & Cooling, we believe that honesty, respect, and integrity are important. That’s why we have up-front pricing. You approve the price before we start your job. We also respect your home. All of our employees have to pass drug tests and background checks before they begin employment with us. All of our electricians are professionally trained and uniformed service technicians.

"Everything was great. Thank you!"

Valerie D on December 2025

At Tim Kyle Electric, Heating & Cooling, we believe that honesty, respect, and integrity are important. That’s why we have up-front pricing. You approve the price before we start your job. We also respect your home. All of our employees have to pass drug tests and background checks before they begin employment with us. All of our electricians are professionally trained and uniformed service technicians.

"Everything was great. Thank you!"

Valerie D on December 2025

Avatar for Heating & Cooling Certified Mechanic

Heating & Cooling Certified Mechanic

4.97(
32
)
•Approved Pro

Heating & Cooling Certified Mechanic

4.97(
32
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
54 local quotes requested

With over a decade of experience, Heating & Cooling Certified Mechanic is professionally licensed and dedicated to ensure your HVAC service/install exceeds your expectations! We specialize in HVAC services, repairs and we guarantee your satisfaction! We will not leave until the job is done right! We pride ourselves on the quality of work we provide, while delivering great customer service! Call or click for your FREE estimate today! HVAC, Water Heater, Air Quality System Installations, Repairs & More Need repair? Call Today, Need Installation or a 2nd Opinion? Call Today. 24 Hour Service CALL TODAY! CALL TONIGHT!

"The estimate process went very smoothly. The proposal was well written & allowed electronic signature. Communication leading up to the install date was timely and professional. The work was completed on time and correctly. The installation team was friendly and competent."

Stanley R on July 2025

With over a decade of experience, Heating & Cooling Certified Mechanic is professionally licensed and dedicated to ensure your HVAC service/install exceeds your expectations! We specialize in HVAC services, repairs and we guarantee your satisfaction! We will not leave until the job is done right! We pride ourselves on the quality of work we provide, while delivering great customer service! Call or click for your FREE estimate today! HVAC, Water Heater, Air Quality System Installations, Repairs & More Need repair? Call Today, Need Installation or a 2nd Opinion? Call Today. 24 Hour Service CALL TODAY! CALL TONIGHT!

"The estimate process went very smoothly. The proposal was well written & allowed electronic signature. Communication leading up to the install date was timely and professional. The work was completed on time and correctly. The installation team was friendly and competent."

Stanley R on July 2025

Avatar for Buric Heating and Air Conditioning

Buric Heating and Air Conditioning

4.65(
20
)
•Approved Pro

Buric Heating and Air Conditioning

4.65(
20
)
•Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
17 local quotes requested

**Call us today for a FREE ESTIMATE on Heating or AC system replacements!** With over 25 years of experience, Buric Heating and Air Conditioning is a full service residential heating and cooling company that has offered Ellicott City, MD and its surrounding areas with plenty of jobs well done. By offering straight forward pricing and free estimates on equipment installations or replacements, you can trust that they are the right HVAC professionals for you. Call today for your next appointment!

"They installed our AC system; that went fine. But several years later, when it needed repair. They came out and looked at the problem, and then ghosted me. They didn't return my multiple calls. When I finally got somebody else to come out to look at the problem, they told me that the warranty had just expired on the part that needed replacing. Putting 2 +2 together, Buric ghosted me to run out the clock on my warranty for the repair of the product they installed. Would you ever hire anybody who behaves like that???"

Noam S on June 2022

**Call us today for a FREE ESTIMATE on Heating or AC system replacements!** With over 25 years of experience, Buric Heating and Air Conditioning is a full service residential heating and cooling company that has offered Ellicott City, MD and its surrounding areas with plenty of jobs well done. By offering straight forward pricing and free estimates on equipment installations or replacements, you can trust that they are the right HVAC professionals for you. Call today for your next appointment!

"They installed our AC system; that went fine. But several years later, when it needed repair. They came out and looked at the problem, and then ghosted me. They didn't return my multiple calls. When I finally got somebody else to come out to look at the problem, they told me that the warranty had just expired on the part that needed replacing. Putting 2 +2 together, Buric ghosted me to run out the clock on my warranty for the repair of the product they installed. Would you ever hire anybody who behaves like that???"

Noam S on June 2022

Avatar for Wm. Henderson Plumbing, Heating & Cooling Inc.

Wm. Henderson Plumbing, Heating & Cooling Inc.

4.58(
417
)
•Approved Pro

Wm. Henderson Plumbing, Heating & Cooling Inc.

4.58(
417
)
•Approved Pro
Customers say: Super punctual
56 local quotes requested
48 years of experience

Since 1977, Wm. Henderson Plumbing, Heating & Cooling Inc. has been providing quality plumbing, heating and cooling service throughout Delaware County and the Main Line. With a fleet of fully-stocked vehicles dispatched from our Broomall headquarters, we strive to provide our customers with prompt, professional service in the plumbing, heating and cooling fields. Wm. Henderson Plumbing, Heating & Cooling Inc. is a member of the Philadelphia Suburban Association of Plumbing Contractors, National Association of Plumbing Heating, Cooling Contractors, Philadelphia-Suburban Gas Exchange, Small Business Association of Delaware County and the Marple Business & Professional Association. Operating a dependable service business requires organization, competent management and professional technical skills. All service technicians have direct communication between the office and customers due to the state-of-the-art communication provided to each technician. We are dedicated to complete customer satisfaction. Our offices are staffed and open weekdays from 7:30 am to 6:30 pm, and on Saturdays from 8:00 am to 1:00 pm. In the event of an emergency, we are always available to you 24 hours a day, 7 days a week. We quote a price before proceeding with any work. We charge by the job, not by the hour, and all work is guaranteed. We are an award-winning company, but we couldn't win awards without happy customers. You are our priority! Additional DBAs - William Henderson Plumbing & Heating Cooling Services, Wm Henderson Plumbing & Heating Inc, Wm Henderson Plumbing Heating Cooling Service.

"Repair Service to Fix Gas Boiler - WM Henderson first sends out a tech who is not familiar with gas boilers and admits there is an issue but does not know how to diagnose it. I had to pay $89 for this. Instead of having the right person come out, I had to to actively call again to get someone else to come out. The 2nd tech diagnosed the issue, but wants to charge me the same $89 that I already paid. - and quotes me $380 for the repair - and has to order the part. I agree and then call back the next day to confirm part is on order - and they tell me the charge is $1,015. I asked to speak to a manager to discuss, and no one is available and no one calls me back. I bought the replacement part from a supply where house (confirming it works with my make/model of boiler) and it cost me $165. I have had other scheduling issues with them as well. Don't use them!!!!!!!!"

Jerry W on December 2024

Since 1977, Wm. Henderson Plumbing, Heating & Cooling Inc. has been providing quality plumbing, heating and cooling service throughout Delaware County and the Main Line. With a fleet of fully-stocked vehicles dispatched from our Broomall headquarters, we strive to provide our customers with prompt, professional service in the plumbing, heating and cooling fields. Wm. Henderson Plumbing, Heating & Cooling Inc. is a member of the Philadelphia Suburban Association of Plumbing Contractors, National Association of Plumbing Heating, Cooling Contractors, Philadelphia-Suburban Gas Exchange, Small Business Association of Delaware County and the Marple Business & Professional Association. Operating a dependable service business requires organization, competent management and professional technical skills. All service technicians have direct communication between the office and customers due to the state-of-the-art communication provided to each technician. We are dedicated to complete customer satisfaction. Our offices are staffed and open weekdays from 7:30 am to 6:30 pm, and on Saturdays from 8:00 am to 1:00 pm. In the event of an emergency, we are always available to you 24 hours a day, 7 days a week. We quote a price before proceeding with any work. We charge by the job, not by the hour, and all work is guaranteed. We are an award-winning company, but we couldn't win awards without happy customers. You are our priority! Additional DBAs - William Henderson Plumbing & Heating Cooling Services, Wm Henderson Plumbing & Heating Inc, Wm Henderson Plumbing Heating Cooling Service.

"Repair Service to Fix Gas Boiler - WM Henderson first sends out a tech who is not familiar with gas boilers and admits there is an issue but does not know how to diagnose it. I had to pay $89 for this. Instead of having the right person come out, I had to to actively call again to get someone else to come out. The 2nd tech diagnosed the issue, but wants to charge me the same $89 that I already paid. - and quotes me $380 for the repair - and has to order the part. I agree and then call back the next day to confirm part is on order - and they tell me the charge is $1,015. I asked to speak to a manager to discuss, and no one is available and no one calls me back. I bought the replacement part from a supply where house (confirming it works with my make/model of boiler) and it cost me $165. I have had other scheduling issues with them as well. Don't use them!!!!!!!!"

Jerry W on December 2024

Avatar for No-Frost Air Conditioning & Heating, LLC

No-Frost Air Conditioning & Heating, LLC

4.90(
376
)
•Approved Pro

No-Frost Air Conditioning & Heating, LLC

4.90(
376
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
27 local quotes requested

Family owned & operated. Additional contact name - Eileen Bangs - Award winning. Additional Licensing Information: MD Master Gas Fitter 6631. Baltimore County License: JG9033. Howard County License: G-9018. Carroll County License: P00068G. Electrical Licensing - Howard County License: 390, Baltimore County License: 547. MHIC12699.

"My system was working fine before the technician arrived. Afterwards my system failed. I contacted this company based upon Angis List recommendations. The technician talked me out of the services I requested and left me with an non working system."

Adi G on August 2023

Family owned & operated. Additional contact name - Eileen Bangs - Award winning. Additional Licensing Information: MD Master Gas Fitter 6631. Baltimore County License: JG9033. Howard County License: G-9018. Carroll County License: P00068G. Electrical Licensing - Howard County License: 390, Baltimore County License: 547. MHIC12699.

"My system was working fine before the technician arrived. Afterwards my system failed. I contacted this company based upon Angis List recommendations. The technician talked me out of the services I requested and left me with an non working system."

Adi G on August 2023

Avatar for Presidential Heating & Air Conditioning

Presidential Heating & Air Conditioning

4.74(
409
)
•Approved Pro

Presidential Heating & Air Conditioning

4.74(
409
)
•Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
123 local quotes requested

You and your family deserve to receive the best care and the best service. Not every heating & A/C company gives you the quality people and care that Presidential does. We offer 40 Years of Award-Winning Quality People, Quality Installation, and Quality Service. Delivering this quality service and care for your home is our commitment to you! Family-owned and operated, Presidential specializes in residential and light commercial service and installation throughout MD, VA & DC. Ask us about our system replacement specials and The Advantage Maintenance Plan for preferred VIP service. Presidential has been awarded the Carrier Factory Authorized Dealer Award and is a member of the ACCA (Air Conditioning Contractors of America) and the Quality One service network.

"We originally found found Presidential Heating and Cooling on Angie's List at least 15 years ago. We liked the company immediately. We have been on a contract for at least 10 years. They installed our current furnace. All the employees are great. James came to service our furnace today. We have never had a problem with any of the techs who have come to our house. The office staff is great also."

William K on December 2025

You and your family deserve to receive the best care and the best service. Not every heating & A/C company gives you the quality people and care that Presidential does. We offer 40 Years of Award-Winning Quality People, Quality Installation, and Quality Service. Delivering this quality service and care for your home is our commitment to you! Family-owned and operated, Presidential specializes in residential and light commercial service and installation throughout MD, VA & DC. Ask us about our system replacement specials and The Advantage Maintenance Plan for preferred VIP service. Presidential has been awarded the Carrier Factory Authorized Dealer Award and is a member of the ACCA (Air Conditioning Contractors of America) and the Quality One service network.

"We originally found found Presidential Heating and Cooling on Angie's List at least 15 years ago. We liked the company immediately. We have been on a contract for at least 10 years. They installed our current furnace. All the employees are great. James came to service our furnace today. We have never had a problem with any of the techs who have come to our house. The office staff is great also."

William K on December 2025

...
Showing 1-10 of 1029
FAQs for swamp cooler installation and replacement projects in Annapolis Junction, MD

Swamp coolers are quite energy-efficient, using only 15% to 35% of the electricity that traditional central air conditioning units consume. This can lead to significant savings on your energy bills. However, keep in mind that swamp coolers require water to operate and may not cool your home as effectively in extremely hot or humid conditions. When considering overall efficiency, it is essential to weigh both electricity and water usage, as well as the cooling needs specific to your local climate.

Evaporative coolers only work in dry climates because they cool by moistening the air. If the air is already moist, this will have little to no cooling effect. Central AC is a better choice if you live in a humid climate, such as the Midwest, eastern, or western coastal regions.

To install a swamp cooler on a roof, a local HVAC specialist will first find and cut a spot free of wiring and obstructions. They’ll then install metal bracing, legs, brackets, the ceiling duct register, ductwork, power, and thermostat wires. Once installed, they’ll seal all openings, attach duct connections, and install a thermostat. Before leaving, they’ll run cool water piping to the unit and inspect all the connections.

The cost to repair your swamp cooler ranges from $50 to $600, depending on the issue, whether new parts are needed, and the chosen repair service. Depending on the type of pad your system uses, you will need to change out the pads every one to three years for proper operation. When budgeting for the cost to repair a window unit, expect to pay around $230.

The U.S. Department of Energy states that swamp coolers can cool a single room by five to 15 degrees Fahrenheit. However, this largely depends on the size and installation method of the evaporative cooler. You can only achieve these results in a dry climate, such as the American South, as it’s easier to cool rooms in humid environments with central air.

Swamp cooler water usage varies depending on the size of the unit. Smaller evaporative units may use one gallon per hour, while much larger units could use up to 15 gallons of water per hour. Most homeowners can expect their unit to use between seven and 10 gallons of water per hour of usage.

The Annapolis Junction, MD homeowners’ guide to swamp cooler installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.

See all articles
  • Detail of a HVAC system outside a brick house

    The cost of replacing an AC unit fan motor depends on warranties, labor, season, and more. This cost guide covers everything you need to know about this HVAC part.

  • A boy changing thermostat’s temperature using a smartphone

    Budget for AC coil cleaning costs based on factors such as cleaning frequency, coil type, cleaning method, accessibility, ongoing maintenance, and more.

  • home air conditioner being recharged with freon

    Need an AC Recharge? Here’s how much it costs, what factors affect cost, and what to expect.

  • House humidifier on a return duct

    Wondering who installs whole-house humidifiers? Hire a licensed HVAC technician. Learn what they do, other pro options, and how to hire confidently