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TRUSTED BY PRESTON, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon66
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Preston

"We had a great experience with them! Super communicative, great price and super quick. Highly recommend"

Lucie B on December 2024

Duke's Electrical Services is a small, family owned and operated business. The owner, a master electrician, preformes all the work personally to ensure the highest quality workmanship.

"We had a great experience with them! Super communicative, great price and super quick. Highly recommend"

Lucie B on December 2024


Avatar for Major League HVAC

Major League HVAC

4.98(
39
)
Approved Pro

Major League HVAC

4.98(
39
)
Approved Pro
Super Service Award
Customers say: True professional
6 years of experience
Free onsite estimate

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"great people very professional"

stanley p on January 2026

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"great people very professional"

stanley p on January 2026


Avatar for Major league hvac

Major league hvac

5.00(
17
)
Approved Pro

Major league hvac

5.00(
17
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Free onsite estimate

Heating and air conditioning. Sales, service, and installation. 20 yrs of experience in the hvac field. We are an American Standard dealer, but service all brands. Our services range from simple repairs to complete system installs, and duct cleaning. Licensed and Nate certified techs.

"Had a complete HVAC system replacement. Through the whole process, they did what they said they would do and within the time frame that I was told. They responded timely and answered all my questions and concerns along the way. I am an impressed customer and delighted to recommend Major League HVAC."

joe k on August 2025

Heating and air conditioning. Sales, service, and installation. 20 yrs of experience in the hvac field. We are an American Standard dealer, but service all brands. Our services range from simple repairs to complete system installs, and duct cleaning. Licensed and Nate certified techs.

"Had a complete HVAC system replacement. Through the whole process, they did what they said they would do and within the time frame that I was told. They responded timely and answered all my questions and concerns along the way. I am an impressed customer and delighted to recommend Major League HVAC."

joe k on August 2025


Avatar for Gunther's Electric, Inc.

Gunther's Electric, Inc.

4.92(
19
)
Approved Pro

Gunther's Electric, Inc.

4.92(
19
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
65 years of experience

Gunther's Electric, Inc. Electrical Contractors is a family run business that has been in operation since 1961. We are dedicated to providing the most competitive services at the most competitive price! The business was founded by Gunther Schiwy, and since has passed down the line to his son Michael Schiwy, and now to his grandson, Matt Schiwy. We have years of experience in residential, commercial, and industrial contracting. We have a strong reputation of excellent workmanship, punctuality, and respect towards our customers. I hope that you will consider Gunther’s Electric next time you have the need for an electrical contractor.

"Great job!!"

Max W on October 2023

Gunther's Electric, Inc. Electrical Contractors is a family run business that has been in operation since 1961. We are dedicated to providing the most competitive services at the most competitive price! The business was founded by Gunther Schiwy, and since has passed down the line to his son Michael Schiwy, and now to his grandson, Matt Schiwy. We have years of experience in residential, commercial, and industrial contracting. We have a strong reputation of excellent workmanship, punctuality, and respect towards our customers. I hope that you will consider Gunther’s Electric next time you have the need for an electrical contractor.

"Great job!!"

Max W on October 2023


"Fast service..very neat and careful. "

Priscilla T on July 2025

Ward Plumbing is east Maryland�s premier plumbing solution. We offer plumbing, heating and gas-fitter services, a two-year warranty on labor and materials, and a 100% customer satisfaction guarantee.

"Fast service..very neat and careful. "

Priscilla T on July 2025


Avatar for Shore2shore heating and cooling

Shore2shore heating and cooling

5.00(
13
)
Approved Pro

Shore2shore heating and cooling

5.00(
13
)
Approved Pro
Super Service Award
Customers say: Quick response
18 years of experience
Free onsite estimate

We install HVAC equipment at an affordable price offering great service and quality work. Additionally, we take on service calls and system diagnostics. Our company takes pride in the work we perform and you can be assured it will get done the right way!

"Excellent and prompt service. They saved me $1800 compared to price quoted by FH FURR for installing new furnace. Highly recommend."

Cyndia R on November 2025

We install HVAC equipment at an affordable price offering great service and quality work. Additionally, we take on service calls and system diagnostics. Our company takes pride in the work we perform and you can be assured it will get done the right way!

"Excellent and prompt service. They saved me $1800 compared to price quoted by FH FURR for installing new furnace. Highly recommend."

Cyndia R on November 2025


Wells HVAC, LLC

5.00(
5
)
Approved Pro

Wells HVAC, LLC

5.00(
5
)
Approved Pro
Super Service Award
Customers say: Quick response
17 years of experience
Free onsite estimate

We're dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. Fully licensed and Insured!

"I’m overly pleased with the work that Wells HVAC provided me. The heating/cooling in my home was antiquated, inefficient & unreliable. However, Michael & his expert-tech remedied those solutions for me. In addition to that; they were punctual in arrival times, they were neat & tidy, and something that stood out to me was their politeness! It feels so good not to be stressed about an unreliable climate & atmosphere in my home now thanks to Wells HVAC. I have, and will continue to highly recommend them to my friends, family, and associates. If you’re on the limb about getting a service done or whom to get it done by… Just call Michael, I promise there will be no regrets or disappointment! "

Christopher P on June 2025

We're dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. Fully licensed and Insured!

"I’m overly pleased with the work that Wells HVAC provided me. The heating/cooling in my home was antiquated, inefficient & unreliable. However, Michael & his expert-tech remedied those solutions for me. In addition to that; they were punctual in arrival times, they were neat & tidy, and something that stood out to me was their politeness! It feels so good not to be stressed about an unreliable climate & atmosphere in my home now thanks to Wells HVAC. I have, and will continue to highly recommend them to my friends, family, and associates. If you’re on the limb about getting a service done or whom to get it done by… Just call Michael, I promise there will be no regrets or disappointment! "

Christopher P on June 2025


Avatar for PELAGIC SERVICES LLC.

PELAGIC SERVICES LLC.

4.73(
11
)
Approved Pro

PELAGIC SERVICES LLC.

4.73(
11
)
Approved Pro
Customers say: Quick response
11 years of experience
Free onsite estimate

For all your needs. TV Install, Painting, Sheetrock, Custom Carpentry, Tile, Decks & Docks, Electrical, HVAC, Plumbing, Brickwork & Concrete, Additions, Remodeling, Handymen Services , landscaping, all marine services. "Upper-level property management & yacht care” Contact Justin ,for a free on site evaluation!

"Justin was quick, professional and friendly. "

Mary G on December 2025

For all your needs. TV Install, Painting, Sheetrock, Custom Carpentry, Tile, Decks & Docks, Electrical, HVAC, Plumbing, Brickwork & Concrete, Additions, Remodeling, Handymen Services , landscaping, all marine services. "Upper-level property management & yacht care” Contact Justin ,for a free on site evaluation!

"Justin was quick, professional and friendly. "

Mary G on December 2025


AJS Climate Solutions LLC

5.00(
2
)
Approved Pro

AJS Climate Solutions LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

AJS Climate Solutions LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Top notch very knowable and work hard to get the job done right and quick. I have already referred them to someone who has used them on multiple jobs and is ver happy with them"

Hal C on February 2024

AJS Climate Solutions LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Top notch very knowable and work hard to get the job done right and quick. I have already referred them to someone who has used them on multiple jobs and is ver happy with them"

Hal C on February 2024


"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

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Heating and Air Conditioning questions, answered by experts

In most cases, homeowners insurance will cover an AC replacement if it was damaged due to a covered peril—such as theft, fire, or storms. So, if your air conditioner needs replacing due to regular wear and tear, your insurance company probably won’t pay for a new one. However, home warranties often cover HVAC repairs and replacements.

A damper motor can last up to 15 years, but it can wear out more quickly than that if you run your HVAC unit a lot. So you might expect a longer life in a colder climate than if you live in a warmer climate.

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

A few drips here and there should not be cause for concern, but if your unit is leaking a large amount of water, then it’s advised that you stop using it until the problem is identified and a solution is determined. The more you use it during a leak, the more issues it will cause.

You can buy a new AC capacitor through most big-box home improvement stores, from an HVAC contractor, or from the manufacturer. Use the model number of your air conditioning unit to make sure you purchase the right part for your unit. Also, keep in mind that the cost of this type of part can vary significantly depending on who you purchase it from, so shop around to get the best price.

The Preston, MD 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.

What do you need done? We’ll find top pros.
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