Business Details
32 Years
experience
Emergency
services
Your Trusted HVAC Partner in Castle Rock, WA
Denali HVAC was founded in 1994 with a commitment to delivering trusted heating and cooling solutions to residential, commercial, and industrial clients. As a Mitsubishi Diamond Contractor and certified American Standard dealer, we prioritize top-tier equipment, warrantied installations, and exceptional service. Our team of experienced union workers has served Washington communities for over 20 years, combining technical expertise with a customer-first approach. We specialize in new system installations, emergency repairs, preventative maintenance, and duct cleaning services tailored to local needs. Our dedication to transparency, quality craftsmanship, and community partnerships has earned us a 4.8 Google rating.We maintain a fully equipped fleet and employ certified technicians like General Manager Derek to ensure reliable service across Castle Rock and surrounding areas. Through partnerships with Local 66 Sheet Metal Workers Union, we deliver cost-effective solutions while maintaining industry-leading standards. Our financing options and maintenance programs provide accessible comfort solutions for homeowners and businesses alike.
Services
HVAC Installation
Emergency Repairs
Preventative Maintenance
Duct Cleaning
Industrial HVAC
Equipment Financing
Details
- Year established: 1994
Highlights and features
- 20 years of local HVAC expertise since 1994
- Certified technicians with union-level training
- Financing options for new HVAC systems
- 24/7 emergency service availability
- Mitsubishi 12-year warranty on qualified installations
Associations and certifications
- Mitsubishi Diamond Contractor
- American Standard Dealer
- Local 66 Sheet Metal Workers Union
What people say
24/7 emergency availability
Certified technicians
Transparent pricing
Quick response times
Warranty expertise
Services
HVAC Installation
We install top-tier Mitsubishi Diamond and American Standard HVAC systems with precision engineering. Our certified technicians ensure proper sizing and efficient installation for residential, commercial, and industrial properties. All installations come with manufacturer warranties up to 12 years.
Emergency Repairs
Available for urgent HVAC issues with rapid response times. Our trained technicians handle weekend emergencies like heating failures during winter. Customer testimonials confirm same-day solutions for critical system breakdowns.
Preventative Maintenance
Scheduled maintenance programs extend equipment lifespan and optimize efficiency. Includes monthly residential check-ups and daily industrial inspections. Union partnerships provide rebates reducing average program cost to $250 annually.
Duct Cleaning
Professional duct cleaning removes allergens and improves system efficiency. Our thorough process covers entire HVAC networks without bait-and-switch pricing. Enhances indoor air quality for homes and businesses in coastal and inland areas.
Industrial HVAC
Specialized industrial HVAC services include daily system checks and preventative maintenance. Our union-certified team maximizes uptime for large-scale operations while maintaining residential service standards.
People
Molly Franklin
Business Owner
Leading Denali HVAC with over 20 years of industry experience, Molly Franklin maintains our commitment to quality service and community partnerships while overseeing daily operations.
Derek
General Manager
Fully certified technician and General Manager with expertise in system diagnostics and team leadership. Derek ensures technical excellence across all residential and commercial service operations.
Questions
Do you service all HVAC brands?
Yes, we work on all professionally installed HVAC brands including Mitsubishi, American Standard, and others for residential, commercial, and industrial systems.
Are emergency services available on weekends?
Yes, our emergency HVAC service operates 24/7 including weekends with technicians like Kyle providing prompt winter heating repairs.
What financing options exist for new systems?
We offer financing programs with approved credit. Our team helps customers understand payment options for HVAC replacements and upgrades.
Do you provide duct cleaning services?
Yes, our comprehensive duct cleaning includes entire HVAC networks with no hidden charges. Technicians use professional equipment for thorough allergen removal.
What warranties apply to new installations?
Mitsubishi systems installed by Diamond Contractors qualify for 12-year warranties. American Standard installations include manufacturer-backed warranty coverage.
Reviews (5)
Brian Johnson
Sep 29, 2021
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Called Denali on a record hot week to replace our 20+ year old furnace and heat pump which was failing. Tristan came and gave us an estimate and ordered our replacement quickly. Tristan was a guy. The technicians were very professional and kept their work clean and left no mess behind. Our house is now regulating heat better than we had hoped for.
Glen Hepler
Mar 25, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
They did a very nice job, clean install. Very knowledgeable and professional staff and technicians. They had the new heat pump and air handler installed in a day. Prices were very reasonable. Highly recommend them!
Services:AC installation,Heating system installation
They did a very nice job, clean install. Very knowledgeable and professional staff and technicians. They had the new heat pump and air handler installed in a day. Prices were very reasonable. Highly recommend them!
Services:AC installation,Heating system installation
Joseph Schaffer
Jan 02, 2021
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The service man was very polite and extremely knowledgeable and instead of a brand new heat pump, He got my old one alive to fight another day, There are not enough good things I can say about Denali heating & Air Conditioning PLUS they are A Union Shop. So give them plenty of business in the future. A company this good deserves to grow and flourish in our community
Steve E.
Oct 25, 2020
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As usual, excellent service. Got our guy, Kip, who did our service call 2 years ago. First winter in our new home and we were a bit anxious that our furnace was in good shape and ready to keep us and our beloved husky heartbeats toasty and happy. He did a very thorough and professional maintenance check. Pleasant, informed and navigated our crazy pak quite well. Will not call anyone else for any of our heating and ac needs. Well done!!
Dolan Santero
Sep 06, 2020
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My heat pump froze over 2 months after purchasing my home. I called Denali because of the reviews and the simple fact that I like to support my local businesses. Unfortunately, their techs lack of knowledge and experience costed me over $500 and left me with a $400 power bill (emergency heat for 2 months). They sent someone out to diagnose my system and discovered that my defrost board wasnt working and it was low on refrigerant, the tech stated that its not uncommon for older units to have minor leaks and he refilled it and told us that if we replaced the defrost board wed be back up
