ductless mini-split Denver

When the Colorado cold sets in, you need a heating system you can count on. Allen Service provides complete heating solutions for homeowners and businesses throughout Denver. From furnace installation and repair to heat pump maintenance and boiler services, our NATE-certified technicians handle it all. We work with all major brands and use only high-quality parts backed by solid warranties. Have an outdated furnace that's driving up your energy bills? We'll help you select a high-efficiency model that qualifies for rebates and saves you money. Is your heat pump blowing cold air? Our diagnostic process quickly pinpoints the issue, and we'll have you warm again usually within the same day. We also offer ductless mini-split systems for homes without ductwork, plus AeroSeal duct sealing to stop leaks and improve airflow. Routine maintenance is key to avoiding breakdowns: join our Membership Rewards plan for annual tune-ups that extend equipment life and keep your warranty valid. Whether it's an emergency repair or a planned upgrade, Allen Service is your go-to heating expert in Denver.

Beat the Denver heat with professional air conditioning services from Allen Service. We specialize in central air conditioner installation, repair, and tune-ups to keep your home cool and comfortable all summer long. Our team will help you choose the right size and efficiency level for your home—oversized units short-cycle and waste energy, while undersized ones struggle to keep up. We perform load calculations and recommend top brands like Carrier, Lennox, and Trane. Need emergency cooling? We offer 24/7 repairs for when your AC quits on the hottest day of the year. Our technicians arrive with fully stocked vans, so most repairs are completed in one visit. We also install ductless mini-split systems, perfect for room additions, garages, or homes without existing ducts. Combine your AC upgrade with a new furnace and take advantage of our current BOGO offer—buy an A/C, get a furnace complimentary. Plus, we offer indoor air quality solutions like whole-home air purifiers and humidifiers to keep your air clean and healthy. Don't sweat it—call Allen Service for reliable cooling in Denver.

From a dripping faucet to a burst pipe, Allen Service delivers fast, professional plumbing solutions across Denver. Our licensed plumbers handle everything: bathroom and kitchen remodels, garbage disposal replacement, gas line installation, sump pump repair, and water heater installation (tank or tankless). We also specialize in pipe leak repair—using modern trenchless technology when possible to avoid digging up your yard. Have a clogged drain that won't clear? We use hydro jetting to blast away grease and debris, leaving your pipes like new. For stubborn sewer line issues, our video pipeline inspection pinpoints the problem without guesswork. We're available for emergency plumbing 24 hours a day, 7 days a week. When you call, you'll talk to a real person, not a machine. We'll dispatch a uniformed technician who will lay down mats to protect your floors, complete the repair, and clean up every trace of the job. No overtime charges, no hidden fees. Whether you're building a new home or dealing with a plumbing crisis, trust the team that Denver families have relied on for three generations.