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Claim This BusinessAllen Service has anchored itself in Colorado home infrastructure since 1962, when it began as a family-owned operation now in its third generation of leadership. Based in Denver with additional locations in Fort Collins and Commerce City, the contractor holds active licenses across multiple trades and maintains a 4.8-star average drawn from 2,299 customer reviews, a volume that places it among the most-reviewed service providers along the Front Range. The company serves Aurora, Centennial, Boulder, Greeley, Eaton, and Commerce City alongside its primary Denver metro footprint, ing uniformed technicians in fully stocked trucks for same-day arrivals across heating, cooling, plumbing, electrical, and drain-sewer emergencies.
What distinguishes Allen Service from regional competitors is its layered approach to customer commitment. The Protection & Respect Guarantee promises four years of complimentary membership if installation technicians fail to protect flooring, use tobacco products, or leave workspaces disturbed, a policy that directly addresses homeowner anxieties about contractor conduct. The company operates on a 24/7 basis with no after-hours surcharges, and its fully stocked fleet eliminates the second-visit delays common with parts-ordering rivals. Financing plans spread across flexible terms make major equipment purchases accessible without upfront balloon payments, while the Membership Rewards program offers prioritized scheduling and discounted maintenance to enrolled homeowners.
Customer narratives drawn from verified reviews speak to specific scenarios rather than abstract competence. One reviewer recounts a same-day call during a heat wave when an AC failure prompted Allen Service to dispatch a technician within four hours, an arrival window the customer called exceptional. The technician walked through repair options transparently and answered questions without condescension. A separate review describes a plumber responding to a leaking toilet with same-day service, though subsequent experiences with water heater and drain issues revealed gaps in diagnostic thoroughness that the company has yet to fully address publicly.
Of 2,299 reviews, the aggregate 4.8 rating reflects strong satisfaction on service timeliness and technician professionalism, though a subset of negative reviews, particularly from Orchid Cox, flags persistent diagnostic oversights involving water heater expansion tanks and secondary components that required repeat service calls.
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Diagnoses leaks, pipe damage, and water heater failures; performs bathroom and kitchen plumbing remodels.
Available 24/7 for burst pipes, severe leaks, and failed water heaters requiring immediate attention.
Video inspection followed by hydro jetting clears stubborn drain blockages; a $63 special runs through May 2026.
Installation, repair, tune-ups, and boiler services for Denver's winter demands; furnaces paired with AC units under current BOGO special.
Same-day AC repair, central air installation, and maintenance tune-ups; 24/7 emergency cooling available.
Panel upgrades, circuit breaker service, EV charging stations, ceiling fans, and home surge protection.
Installation of tankless systems with up to $1,000 off through May 2026; handles gas line connections.
Air purification systems, humidifiers, and AeroSeal duct sealing to improve whole-home air circulation.