

We are proud to serve Northern Colorado with our 3 locations. If you don’t see your community listed, contact us to see if we can still help!
- Allenspark
- Ault
- Aurora
- Bellvue
- Berthoud
- Boulder
- Broomfield
- Castle Rock
- Centennial
- Commerce City
- Denver
- Eaton
- Firestone
- Fort Collins
- Fort Lupton
- Gilcrest
- Greeley
- Hudson
- Jamestown
- Johnstown
- Kersey
- La Salle
- Lafayette
- LaPorte
- Longmont
- Loveland
- Lyons
- Milliken
- Niwot
- Plattville
- Severance
- Timnath
- Wellington
- Windsor
Areas We Service in Northern Colorado
We Provide Comfort to Northern Colorado Homeowners
The team of technicians at Allen Service built our reputation upon delivering excellent customer service, repairs, and installations throughout the Northern Colorado area.
For 60 years, we have been bringing the same quality, which is why homeowners have allowed us to assist their city for so long. Whether your sewer or drain pipes have some blockage or the thermostat is on the fritz, you can trust our experience and knowledge when it comes to repairing or replacing to guarantee your satisfaction with their performance again.
Our technicians are all certified, fully-insured, and licensed, alleviating any stress you may have about us working on your home. We are your trusted Northern Colorado HVAC Contractor.
If you do not see your city listed, contact us today. We may still be able to offer service in your area!

is Just a Click Away Colorado’s Trusted Home Service Team
Tell us what you need, and we’ll take care of the rest.


Why Choose Allen Service?
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Local Professionals Who Care
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Customer-First Service Guarantee
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24/7 Emergency Response
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Decades of Proven Experience
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Full-Service Home Experts
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Three Locations - One Standard of Excellence
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“Zach Workman did an excellent job fixing my AC capacitor. And even gave me a very well explained run down of how AC units work, especially capacitors. This was beneficial to me as I am a tradesman myself. Highly recommend Allen Service.”Chance I.
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“I had a great experience with Allen Service when our AC stopped working. Kevin, was extremely polite and knowledgeable. He was able to diagnose and resolve the issue quickly and even provided some informative advice for us moving forward.”Jenna A.
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“Awesome service and customer care. They were stupendous! I noticed immediately how positive and energetic they were, working together as a team to rectify our issues. These young men were personable, courteous, & very informative.”Nicholas S.
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“My technician today was professional, courteous, thorough, and made everything easy to understand. My AC had stopped working and Allen was able to get someone to my house within 4 hours which was exceptional and appreciated!”Shannon M.
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“Allen has been our preferred vendor for maintenance and repairs across our entire apartment community. Their team is consistently prompt, professional, & efficient. They respond quickly, diagnose the problem accurately, & complete repairs quickly.”Alison W.
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“The company was responsive and went above and beyond. They worked through my broken sink issue and were informative along the way. Extremely polite and efficient. I would absolutely ask Allen for service again!”Dorothy G.