Pro Business

Cool Sunshine Heating and Air Conditioning, Inc.

Denver HVAC Companies
Ranked #11 in Denver | Grade B-
4.80 (194 reviews)

Cool Sunshine Heating and Air Conditioning, Inc.

Local HVAC company providing weekday service in Denver with repair, maintenance, and replacement options for heating and cooling systems.

Why Homeowners Choose This Business

Denver-focused service with clear communication and scheduling. Technicians aim to present options before work begins so you can choose the best path for comfort and budget. The company’s steady volume of recent positive online reviews suggests consistent customer satisfaction.

Service Area

Serving Denver and surrounding metro communities; call to confirm your location.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  Service
  Furnace Repair
  Residential Service
  AC Repair
  Repairs
  HVAC Maintenance
  HVAC replacement
  Thermostat Installation
  Heat Pump Service
  Ductless Mini-Split
  Indoor comfort
  Cooling System Repair
  Heating System Repair
  Air Conditioner Installation
  Furnace Installation

Heating and AC diagnostics and repair; seasonal maintenance and tune-ups; furnace and air conditioner replacement; indoor comfort troubleshooting; thermostat replacement and setup.


Recent Reviews

4.80

(Based on 194 reviews)

Google rating 4.80 from 194+ reviews reflects strong feedback for prompt service and courteous technicians. Customers frequently note clear explanations and effective repairs.

Very positive experience with Cool Sunshine. Israel, the Service Manager, was responsive, efficient, and considerate. He diagnosed the problem quickly and suggested the appropriate fix. Cool Sunshine offered me the right repair at a reasonable price - without adding on unnecessary extras - or trying to upsell and replace a fairly new system in favor of a more expensive model with only incremental efficiencies. Integrity like that stands out.

Larsen has used Cool Sunshine as a trusted trade partner for the past several years on our Custom Homes, and couldn’t be happier with how they’ve performed.  All of their team members are friendly, knowledgeable, and extremely professional.  Building custom homes provides lots of unique challenges that vary on every project, but the team at Cool Sunshine always comes up with creative solutions to make sure that not only is the end product aesthetically pleasing, but also performs the way it should.  They put a lot of thought and care into everything they do, and it shows.  Would highly recommend these guys to builders, remodelers, or just a homeowner looking for a new system or repair to an old one.  You won’t be disappointed.  We look forward to our continued partnership for years to come!
-Larsen

Sunshine is so wonderful to work with. When our furnace wasn’t working, they came out within an hour of calling. Unfortunately, the furnace stopped working again the very next day and they were out within 30 minutes of calling. Always very prompt, professional, and willing to explain the fix and options. Thank you!!!

Truly the most lovely and professional company we've worked with in a long time! Joy was so thoughtful and attentive in finding a creative solution to facilitate installation of a new minisplit system throughout our home. The initial consultation was prompt and incredibly detailed. Joy then scheduled us for installation within 2 weeks. On the day of install, the team took the utmost care in moving and replacing furniture items, communicated superbly to troubleshoot exact placement, and worked efficiently/skillfully throughout. They are clearly expert at what they do, but with all the benefits of a small company to ensure the project is personally customized to your needs. We are finally cool in our 1960s home for the first time since moving in. I can't remember the last time I felt impressed by a company enough to write a detailed google review, but I really can't say enough good things about them.

Great service and very friendly! Serviced my system that hadn’t been done in who knows how long. Showed up earlier than originally quoted and finished fast and efficiently with full honesty and transparency! Over all super pleased with the work performed and wouldn’t hesitate to recommend them to anyone!



Frequently Asked Questions

They handle heating and cooling repair, maintenance, and system replacement for most residential needs. This typically includes furnaces, air conditioners, and related controls like thermostats.

Weekday hours are listed as 7:00 AM to 8:00 PM, Monday through Friday. Saturday and Sunday are shown as closed; call to check current availability.

Yes, technicians can assess system condition, age, and efficiency to outline options. They usually discuss costs and timelines so you can choose what fits your home and budget.

They work on a variety of common brands found in Denver homes. If you have a specific make or model, call to confirm parts availability and support.

Call (303) 287-1846 or visit their website to request service. Provide details about the issue, preferred times, and any access instructions.
 Verified Listing

Opening Hours


  • Monday 7:00 AM – 8:00 PM
  • Tuesday 7:00 AM – 8:00 PM
  • Wednesday 7:00 AM – 8:00 PM
  • Thursday 7:00 AM – 8:00 PM
  • Friday 7:00 AM – 8:00 PM
  • Saturday Closed
  • Sunday Closed

Request Service


Business Details


Business Rating
4.80 (194 reviews) Pro Business
Address
4395 Oneida St, Denver, CO 80216, USA, Denver, CO 80216, US
Business Type
service

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