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AC units after being repaired by a local pro

5 Best AC Repair Services in Castle Rock, CO

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Written By Max Peterson|Last Updated: April 18, 2024

When the need arises for air conditioner (AC) repairs in Castle Rock, CO, residents take pride in options that prioritize protecting the environment, and many of them will emphasize energy efficiency when they can. Whether it's simple repairs or a full replacement you need, This Old House recommends starting your AC repair company search with these highly-rated Castle Rock providers.

Top AC Repair Companies in Castle Rock, CO

Heatwave Heating & Cooling Logo

Heatwave Heating & Cooling

Based on 55 customer reviews.

Services Offered

Indoor Air QualityFiltrationFurnace RepairMaintenanceAc RepairAc InstallationFurnace Installation


  • Informative resources
  • Free quote
  • Reliable customer support
4734 Moonshine Ridge Trail, Parker, CO 720-600-7247 heatwavedenver.com
Steele Brothers Heating Inc Logo

Steele Brothers Heating

Based on 123 customer reviews.

Services Offered

Indoor Air QualityRadiant HeatingAc RepairMaintenanceFiltrationFurnace InstallationDuctlessBoiler InstallationAc Installation


  • Free quote
  • Reliable customer support
  • Informative resources
7147 Reynolds Dr, Sedalia, CO 303-347-1958 steelebrosheating.com
At Parker Service Company Logo

At Parker Service Company

Based on 18 customer reviews.

Services Offered

InspectionFurnace InstallationAc InstallationEmergency ServicesMaintenanceBoiler InstallationBoiler RepairFurnace RepairAc Repair


  • Clear pricing policy
  • Free quote
  • Reliable customer support
15900 E Summit Fox Ave, Parker, CO 303-745-4826 rbm-hvac.com
Castle Rock Heating and Air Logo

Castle Rock Heating and Air

Based on 269 customer reviews.

Services Offered

Emergency ServicesAc InstallationMaintenanceAc RepairFurnace Installation


  • Informative resources
  • Prompt service delivery
  • Free quote
1966 N Hwy 83, Franktown, CO 303-979-2300 castlerockheatingandair.com

More Local Hvac Companies

A & B Mechanical

User Reviews: 4.3/5 

1810 Park St Unit B
Castle Rock, CO 80109

Credible Air, Heating & Air Conditioning

User Reviews: 4.3/5 

200 S Wilcox St #433
Castle Rock, CO 80104

Discount Heating And Cooling Castle Rock / Furnace / Air Conditioning

User Reviews: 4.3/5 

3351 Bonita Pl
Castle Rock, CO 80108

Indoor Air Quality, Inc.

User Reviews: 4.7/5 

10711 Greycliffe Dr
Highlands Ranch, CO 80126

Allied Heating & Air Conditioning

User Reviews: 4.5/5 

10311 S Progress Way
Parker, CO 80134

Moore Heating & Air Conditioning Inc

User Reviews: 4.5/5 

10212 Progress Ln
Parker, CO 80134

Mac's Maintenance, LLC

User Reviews: 4.7/5 

9457 S University Blvd
Littleton, CO 80126

Colorado Discount Heating and Cooling

User Reviews: 4.8/5 

8599 Prairie Trail Dr Unit A-100
Englewood, CO 80112

L & L Heating & Air Conditioning

User Reviews: 4.8/5 

177 Summit View Cir
Parker, CO 80138

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

AC units after being repaired by a local pro

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Facts about Castle Rock
Average Max Temp Percentile:39.4%
August Average Max Temp:79.1°F
Climate Zone:Cold
Average Energy Cost:$0.12/kWh
Median Year Houses Built:2002
Average Heat Waves per Year:0.0

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Common Types of Air Conditioners

There are a few different varieties of air conditioner systems on the Castle Rock market. While HVAC contractors can work with most types, knowing which one you have will simplify your company research.

  • Split ACs: Split air conditioners have two main elements: one inside and one outside. They provide quiet operation, improved energy efficiency, ductwork options, and more cooling capability versus mini-splits.
  • Window ACs: Window air conditioners are a popular choice for Castle Rock apartments, condos, and townhomes. These budget-friendly, convenient units are designed for cooling single rooms and small spaces, and they fit snugly in a window frame or dedicated wall slot. Many window air conditioner users deploy their units without professional assistance, though technicians can still help with maintenance and repairs.
  • Ductless mini-split: Ductless mini-split ACs have an outdoor unit and one or more indoor units, with no ductwork required. They offer individual room temperature control, higher energy efficiency, and flexible installation options.
  • Portable air conditioners: As the name implies, portable air conditioners don't require permanent installation or ductwork. Instead, they remove hot air through an exhaust hose connected to a window or nearby vent. They're popular for apartments, condos, or individual rooms.
  • Central AC: These are the most common residential AC systems, offering precise, consistent temperature control. They feature a central unit that cools and purifies outside air and sends it through ducts to various rooms in your home.

How to Choose Your Castle Rock AC Repair Service

While you might want to resolve your AC issue quickly, you should do your research before signing a contract with a repair service. Take the following steps to ensure you find the top-rated company for your home.

Confirm the Company Is Properly Licensed and Insured

Colorado licenses plumbers and electricians at the state level, but not HVAC contractors. Counties and cities are free to issue their own licenses, and we encourage you to contact your local government for more information.

You should also check a company has sufficient liability coverage, even if your state doesn't require it. Choosing an insured company will protect you if mishaps arise during work.

Read Customer Reviews

Find customer reviews on the Better Business Bureau (BBB) website for each company you're interested in. The BBB recognizes contractors that resolve complaints effectively and honor their warranties.

It's normal for even the best AC repair businesses to have both positive and negative reviews. Read each one carefully, and avoid a company if most reviewers had subpar experiences.

Compare Estimates

Obtain at least three detailed, written estimates from different providers for the best price. A good estimate should list additional fees such as permitting costs. You should also ask about the emergency repair process, installer guarantees, and manufacturer warranties.

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Frequently Asked Questions About AC Repair in Castle Rock

What's the cost of an AC repair job in Castle Rock?

Your air conditioner repair costs will hinge on your system's make and model and the malfunctioning part. A basic repair job like sorting out a thermostat might cost $150–$250, whereas a more intricate fix like switching out the compressor will be more expensive.

See the average costs for common AC repairs below.

Common RepairAverage Cost
Clogged air filter$65–$172
Electrical circuits$200–$250
Drainage problems$100–$150
Refrigerant leak$400–$1500
Frozen condenser coils$1,292–$3,876
Fan or air blower issues$150–$200
Compressor replacement$600–$1,637

What are some signs that I should call an HVAC repair company?

Here are some frequent AC issues you might face: It's best to contact a professional HVAC technician if you encounter any of these problems.

How often should Castle Rock homeowners have their AC systems serviced?

It's a good idea to service your AC at least annually. You can further maximize its lifespan and efficiency by keeping the outdoor unit clear of brush and debris.

Why should I hire an HVAC professional? Couldn't I repair my air conditioner myself?

You can most likely install a window AC unit on your own. However, installing other air conditioners should almost always be done by an HVAC contractor who knows the intricate tubing, piping and wiring. We also advise seeking professional installation due to the danger of refrigerant spills.

Should my HVAC company have a private accreditation?

Private accreditations aren't always necessary, but firms that seek them are typically more trustworthy. The two largest HVAC trade bodies that issue certifications are the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) and Air Conditioning Contractors of America (ACCA).

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.