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Find Window a/c unit service or relocation pros in Littleton

Avatar for Gerald Martin Services

Gerald Martin Services

4.93(
21
)
Approved Pro

Gerald Martin Services

4.93(
21
)
Approved Pro
Super Service Award
Customers say: Terrific value
25 years of experience
Free onsite estimate

We are a locally owned and operated company with over 40 years of experience in construction and home improvement. Led by Gerald Martin, a professional with expertise in residential and commercial projects, we specialize in renovations like kitchen and bathroom remodels, along with services such as tile installation, plumbing, drywall, and carpentry. With a focus on quality craftsmanship, safety, and attention to detail, we are committed to delivering results that exceed expectations. Gerald Martin’s experience ensures each project is managed with care, from budgeting and scheduling to maintaining high safety standards. Our track record of successful projects and lasting client relationships speaks for itself. We take pride in delivering the project of your dreams with professionalism and care. The Martin Group is an association of licensed professionals who assist GMS in obtaining permits and working with local, state, and county agencies to ensure proper permitting when necessary.

"Gerald Martin remodeled my basement. He was very professional. He was attentive to detail and made sure that I was happy with everything. I definitely would hire him again."

Coquese R on July 2025

We are a locally owned and operated company with over 40 years of experience in construction and home improvement. Led by Gerald Martin, a professional with expertise in residential and commercial projects, we specialize in renovations like kitchen and bathroom remodels, along with services such as tile installation, plumbing, drywall, and carpentry. With a focus on quality craftsmanship, safety, and attention to detail, we are committed to delivering results that exceed expectations. Gerald Martin’s experience ensures each project is managed with care, from budgeting and scheduling to maintaining high safety standards. Our track record of successful projects and lasting client relationships speaks for itself. We take pride in delivering the project of your dreams with professionalism and care. The Martin Group is an association of licensed professionals who assist GMS in obtaining permits and working with local, state, and county agencies to ensure proper permitting when necessary.

"Gerald Martin remodeled my basement. He was very professional. He was attentive to detail and made sure that I was happy with everything. I definitely would hire him again."

Coquese R on July 2025


Avatar for Coal Creek Heat, LLC

Coal Creek Heat, LLC

5.00(
4
)
Approved Pro

Coal Creek Heat, LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

We provide 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.

"Devin was so professional and knowledgeable. Great company and service!! Highly recommend."

James M on May 2020

We provide 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.

"Devin was so professional and knowledgeable. Great company and service!! Highly recommend."

James M on May 2020


Avatar for Otter HVAC Solutions

Otter HVAC Solutions

5.00(
7
)
Approved Pro

Otter HVAC Solutions

5.00(
7
)
Approved Pro
Super Service Award
Customers say: Quick response
3 years of experience
Free onsite estimate

In Business Since 2024 Otter HVAC Solutions 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. How We Got Started I chose to work in this industry because Hi there— I’m Mitch Atwell, HVAC and Boiler Technician with over 15 years experience installing and repairing systems. I’m also an Eagle Scout! I’ve worked at all levels of the industry and can help you make the best decisions for your home. I’m here to help you keep the heat on, get some AC, and make your life more comfortable for a comfortable price. Please reach out with any questions!. We started in this industry in 2012. We describe our business as Family owned and operated

"Mitch had it all planned out and was in and out. We now have endless hot water!"

Brad l on February 2025

In Business Since 2024 Otter HVAC Solutions 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. How We Got Started I chose to work in this industry because Hi there— I’m Mitch Atwell, HVAC and Boiler Technician with over 15 years experience installing and repairing systems. I’m also an Eagle Scout! I’ve worked at all levels of the industry and can help you make the best decisions for your home. I’m here to help you keep the heat on, get some AC, and make your life more comfortable for a comfortable price. Please reach out with any questions!. We started in this industry in 2012. We describe our business as Family owned and operated

"Mitch had it all planned out and was in and out. We now have endless hot water!"

Brad l on February 2025


"I was not happy with their determination on my heater they came by my home within a reasonable time he catched my heater they determine my motherboard went out and needed to be replaced what cost me about eight hundred dollars i asked the person to check thermostat that I put in myself to make sure I wired it correctly they said that was not the problem a month went by i decided to reset the thermostat myself I rewired it and what do you know my heater works the main motherboard did not have to be replaced next time a customer asks to check the thermostat instead of telling the customer that is gonna cost you eight hundred dollars to replace something that was not broke i'm a very dissatisfied customer "

Kurt V on December 2025

At Wild Water is a Plumbing, Heating, Cooling and water mitigation company. We provide no trip fee estimates. We're a locally owned, proudly staffed by fully licensed technicians. We look forward to serving you.

"I was not happy with their determination on my heater they came by my home within a reasonable time he catched my heater they determine my motherboard went out and needed to be replaced what cost me about eight hundred dollars i asked the person to check thermostat that I put in myself to make sure I wired it correctly they said that was not the problem a month went by i decided to reset the thermostat myself I rewired it and what do you know my heater works the main motherboard did not have to be replaced next time a customer asks to check the thermostat instead of telling the customer that is gonna cost you eight hundred dollars to replace something that was not broke i'm a very dissatisfied customer "

Kurt V on December 2025


Avatar for Controlling Systems

Controlling Systems

4.31(
13
)
Approved Pro

Controlling Systems

4.31(
13
)
Approved Pro
Customers say: Quick response
50 years of experience
Free onsite estimate

Established in 1976. For over 45 years Controlling Systems has served the Colorado front range, providing unsurpassed customer service and relentless pursuit of customer satisfaction. Heating, hot water heater and air conditioning service, maintenance, sales and installation

"Every step, from the estimate with the super friendly Ryan, to the final walk-thru with the always professional Gemini, was absolutely top notch. They installed a new furnace, A/C, and tankless water heater and we are very happy with the work and final outcome. The whole crew was wonderful!"

Izabel K on July 2022

Established in 1976. For over 45 years Controlling Systems has served the Colorado front range, providing unsurpassed customer service and relentless pursuit of customer satisfaction. Heating, hot water heater and air conditioning service, maintenance, sales and installation

"Every step, from the estimate with the super friendly Ryan, to the final walk-thru with the always professional Gemini, was absolutely top notch. They installed a new furnace, A/C, and tankless water heater and we are very happy with the work and final outcome. The whole crew was wonderful!"

Izabel K on July 2022


Avatar for Heart Heating, Cooling, Plumbing & Electric

Heart Heating, Cooling, Plumbing & Electric

4.92(
76
)
Approved Pro

Heart Heating, Cooling, Plumbing & Electric

4.92(
76
)
Approved Pro
Super Service Award
Customers say: Super punctual
21 local quotes requested
7 years of experience

Heart Heating, Cooling, Plumbing & Electric is your trusted, full-service home comfort provider for HVAC, plumbing, and electrical services. As a premier dealer, we’re committed to delivering high-quality workmanship, reliable solutions, and an exceptional customer experience on every job. Our team of highly trained, licensed professionals takes a customer-first approach—providing clear communication, honest recommendations, and solutions tailored to your home’s needs. Whether it’s a repair, installation, or full system replacement, we focus on doing the job right the first time. What truly sets Heart apart is our Lifetime Warranty on Parts and Labor, giving homeowners unmatched peace of mind long after the work is complete. With 2,600+ five-star Google reviews, our reputation is built on trust, consistency, and care. If you’re looking for dependable home service backed by experience, accountability, and long-term protection, Heart is here for you.

"Rick was fabulous about fixing the issues that the original installer did wrong and created so many problems. I feel I can breathe again knowing it will work properly for a very long time. I trust Heart because their technicians are always experienced and friendly. "

Trudy J on December 2025

Heart Heating, Cooling, Plumbing & Electric is your trusted, full-service home comfort provider for HVAC, plumbing, and electrical services. As a premier dealer, we’re committed to delivering high-quality workmanship, reliable solutions, and an exceptional customer experience on every job. Our team of highly trained, licensed professionals takes a customer-first approach—providing clear communication, honest recommendations, and solutions tailored to your home’s needs. Whether it’s a repair, installation, or full system replacement, we focus on doing the job right the first time. What truly sets Heart apart is our Lifetime Warranty on Parts and Labor, giving homeowners unmatched peace of mind long after the work is complete. With 2,600+ five-star Google reviews, our reputation is built on trust, consistency, and care. If you’re looking for dependable home service backed by experience, accountability, and long-term protection, Heart is here for you.

"Rick was fabulous about fixing the issues that the original installer did wrong and created so many problems. I feel I can breathe again knowing it will work properly for a very long time. I trust Heart because their technicians are always experienced and friendly. "

Trudy J on December 2025


Avatar for Jacob

Jacob

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Jacob

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2026 years of experience

With over 8 years of hands-on HVAC experience, I?m known for delivering thorough evaluations, honest recommendations, and high-quality workmanship. I take the time to assess each job carefully so customers understand their options and feel confident in the work being done. I offer fair, affordable pricing that allows me to serve the Denver metro area while still delivering reliable, professional results. My goal is to build long-term customer relationships by providing dependable service, clear communication, and quality work you can trust?without inflated costs.

With over 8 years of hands-on HVAC experience, I?m known for delivering thorough evaluations, honest recommendations, and high-quality workmanship. I take the time to assess each job carefully so customers understand their options and feel confident in the work being done. I offer fair, affordable pricing that allows me to serve the Denver metro area while still delivering reliable, professional results. My goal is to build long-term customer relationships by providing dependable service, clear communication, and quality work you can trust?without inflated costs.


Avatar for Attraction Heating & Cooling

Attraction Heating & Cooling

5.00(
2
)
Approved Pro

Attraction Heating & Cooling

5.00(
2
)
Approved Pro
Customers say: Quick response
11 years of experience
Free onsite estimate

In Business Since 2015 Attraction Heating & Cooling 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.

"It went great. Mike and his team where on time, on budget and very professional. Will hire again. Thanks Mike!"

Chuck M on January 2025

In Business Since 2015 Attraction Heating & Cooling 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.

"It went great. Mike and his team where on time, on budget and very professional. Will hire again. Thanks Mike!"

Chuck M on January 2025


Avatar for Behold Heating & Cooling Services

Behold Heating & Cooling Services

5.00(
33
)
Approved Pro

Behold Heating & Cooling Services

5.00(
33
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
66 local quotes requested

Behold the Difference! Every day we are invited into our customer’s homes. Into their safe place and sanctuary. Quite often this is in the midst of a concern or issue that needs to be fixed! With an extensive background that spans well beyond just the trades, we love to be different. In addition to decades of industry experience, we bring some secret sauce - we love to take all the time needed to help, to make sure you are comfortable, and to provide amazing solutions. Come BEHOLD the difference! "Unfortunately we do not service or intall swamp or evaporative coolers".

"Chris and his team were great. They cared enough to put on shoe covers while walking in my home. Chris was very informative about the humidifier installation process. Thanks"

Joann J on December 2025

Behold the Difference! Every day we are invited into our customer’s homes. Into their safe place and sanctuary. Quite often this is in the midst of a concern or issue that needs to be fixed! With an extensive background that spans well beyond just the trades, we love to be different. In addition to decades of industry experience, we bring some secret sauce - we love to take all the time needed to help, to make sure you are comfortable, and to provide amazing solutions. Come BEHOLD the difference! "Unfortunately we do not service or intall swamp or evaporative coolers".

"Chris and his team were great. They cared enough to put on shoe covers while walking in my home. Chris was very informative about the humidifier installation process. Thanks"

Joann J on December 2025


Avatar for Peak Home Performance

Peak Home Performance

5.00(
11
)
Approved Pro

Peak Home Performance

5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
41 local quotes requested

Since day one, we’ve been dedicated to providing our community with a level of service in HVAC that just doesn’t currently exist. Over 30 years of experience. Their former experience of operating a successful HVAC company led to them opening Peak Home Performance with a passion and dedication unseen in our area.

"So helpful and knowledgeable!"

Abigail C on November 2025

Since day one, we’ve been dedicated to providing our community with a level of service in HVAC that just doesn’t currently exist. Over 30 years of experience. Their former experience of operating a successful HVAC company led to them opening Peak Home Performance with a passion and dedication unseen in our area.

"So helpful and knowledgeable!"

Abigail C on November 2025

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FAQs for window a/c unit service or relocation projects in Littleton, CO

If your window air conditioner is relatively new or of high quality, repairing it can restore optimal performance and protect your investment. However, for older units or those with ongoing issues, it might be more cost-effective to replace the unit to ensure long-term efficiency and reliability. Consider the unit's age, the severity of the problem, repair costs versus replacement, and energy efficiency ratings when making your decision. If repairs cost more than half the price of a new unit, replacement is typically the better option.

Window air conditioners last eight to ten years on average. After this time, you may notice decreased efficiency and component wear. Replacing an older unit can improve energy savings and provide updated features like remote controls and better overall performance. With proper maintenance including regular filter cleaning, coil checks, and professional servicing, you can maximize your unit's lifespan.

If your portable AC isn't cooling, it might have a refrigerant leak or a circuit malfunction that's preventing it from working properly. It's best to contact a local air conditioner contractor to inspect and repair the unit. If your AC is older and repairs don't fix the issue, replacing it might be the most effective solution.

Removing a wall-mounted AC costs $55 to $75. Completing the removal yourself at the end of each summer season, being sure to do so according to proper guidelines, keeps you within this cost range. Should you require professional assistance for removal and disposal, if you can't move the unit yourself, expect an added fee of $25 to $50 to the overall cost.

The Littleton, CO homeowners’ guide to window a/c unit services or relocations

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

  • 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