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The Help You Need
is Just a Click Away Colorado’s Trusted Home Service TeamTell us what you need, and we’ll take care of the rest. -
Easy Financing for
Any Budget Affordable Payments. Exceptional Service.Our financing plans make it simple to invest in your home when it matters most.
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The Help You Need
is Just a Click Away Colorado’s Trusted Home Service TeamTell us what you need, and we’ll take care of the rest.
Colorado Home Services
24/7 HVAC, Plumbing, & Electrical Solutions in Denver, Fort Collins, Commerce City, & Beyond
Allen Service has been delivering dependable HVAC, plumbing, and electrical solutions for families throughout Denver, Fort Collins, Commerce City, and the surrounding areas like Aurora, Centennial, Boulder, Greeley, and Eaton since 1962. Family-owned and operated for three generations, we’ve built our reputation on trust, quality, and a commitment to our community. Whether you need heating repairs, plumbing upgrades, or electrical diagnostics, we’re here to build solid foundations for homeowners and businesses.
At Allen Service, you’ll find courteous, uniformed technicians who respect your time, your space, and your schedule. We travel in fully stocked trucks to deliver prompt solutions without cutting corners. With Allen Service, good service isn’t just about fixing a problem – it’s about creating a seamless, stress-free experience tailored to your needs.
Contact Allen Service today to connect with one of our three locations and request a same-day service appointment.
Thanks Allen! You guys are GREAT!
Don’t Miss Out on These Savings!
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$63 Drain Clearing Valid Mar 1, 2026 - May 31, 2026 -
$50 OFF $250 or more
Plumbing repair
Valid Mar 1, 2026 - May 31, 2026 -
Up to $1000 Off Tankless Water Heater Valid Mar 1, 2026 - May 31, 2026
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$99 Furnace OR A/C Tune Up
OR JOIN THE CLUB
Valid Mar 1, 2026 - May 31, 2026 -
$50 OFF $250 or more
HVAC Repair
Valid Mar 1, 2026 - May 31, 2026 -
BOGO Buy an A/C, get a furnace free
Up to $2500 Value
Valid Mar 1, 2026 - May 31, 2026
All-In-One Home Care How Can We Help You Today?
Allen Protection & Respect Guarantee
Our installation technicians are trained in skill, attitude, and workmanship. While in your home, they will:
- Protect your property from damage.
- Refrain from swearing or using tobacco products.
- Courteously answer your questions and concerns.
- Wear protective shoe covers and place protection on work and traffic areas.
- Leave your home as neat as they found it.
If any of the above standards are not met, you will receive four (4) years of Service Membership at no charge.
More Than A Contractor We're Your Neighbor
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24/7 Emergency ResponseFrom a midnight furnace breakdown to a burst pipe or power issue, our expert team is on standby to restore your comfort quickly — day or night.
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Decades of Proven ExperienceWith over 60+ years of dedication to our communities, we blend modern technology with time-tested skills to deliver repairs, installations, and maintenance you can count on.
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Full-Service Home ExpertsSkip the hassle of juggling multiple contractors. From heating and cooling to plumbing and electrical, Allen Services is your one-call solution for total home care.
is Just a Click Away Colorado’s Trusted Home Service Team
Tell us what you need, and we’ll take care of the rest.
Proudly Serving Colorado's Front Range with 3 locations
Fort Collins | Denver | Commerce City
- 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
People-Centric Service with a Personal Touch
Allen Service believes that good service starts with good communication. Our highly trained and certified technicians take the time to listen to your concerns, answer your questions, and walk you through every step of the process. We speak your language, whether that language is English or Spanish, so you’re never left confused or in the dark.
Respect and kindness are at the core of everything we do. From arriving on time to cleaning up after the job, our team is committed to making every interaction positive and stress-free. We don’t just fix problems, we build lasting relationships based on integrity, transparency, and trust.
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A furnace can stop working due to several issues, including electrical problems (tripped circuit breakers, blown fuses), thermostat malfunctions, ignition or pilot light failures, broken blower motors, or safety switch activations. Gas furnaces may stop due to gas supply interruptions or valve issues. Preventative maintenance can identify potential problems before they cause complete system failure. If your furnace stops working, our Allen Service technicians are available for prompt diagnosis and repair to restore your home's comfort quickly.
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The most expensive furnace repair is typically replacing the heat exchanger, which can cost between $1,500 and $3,500 depending on your furnace model. Heat exchanger cracks often indicate a furnace nearing the end of its useful life. Other costly repairs include replacing the blower motor assembly ($800-$1,500) or control board ($500-$1,100). When facing expensive repairs on older units, our technicians will honestly advise whether repair or furnace installation offers better long-term value.
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The average cost of furnace repair in Fort Collins ranges from $150 to $450, depending on the specific issue and parts required. Simple fixes like replacing ignitors or flame sensors tend to be on the lower end, while more complex electrical or mechanical repairs cost more. At Allen Service, we provide upfront, transparent pricing before any work begins, and we offer financing options for larger repairs to make unexpected heating expenses more manageable.
is Just a Click Away Colorado’s Trusted Home Service Team
Tell us what you need, and we’ll take care of the rest.
When Quality Counts, Count on Us
Your home or business deserves the best, which is why Allen Service prioritizes modern solutions backed by ongoing training and certifications. Our technicians stay ahead of industry advancements to diagnose problems faster and recommend the most effective repairs or upgrades. When we combine this expertise with the advanced equipment found in our fully stocked trucks, you receive efficient solutions delivered with expert precision.
For over six decades, we’ve been a part of the fabric of our community, helping our Fort Collins, Denver, and Commerce City neighbors build safe, comfortable spaces to live and thrive. When you choose Allen Service, you choose experience, reliability, and a team that genuinely cares about your home’s well-being.
Call Allen Service at (970) 431-6574 or contact us online to find your nearest office, explore our services, and request an estimate.
