Services

Northwest Ohio winters are no time for a furnace to fail. Overcashier & Horst provides expert furnace installation, repair, service, and maintenance for homeowners and businesses throughout the Toledo metro area, including Sylvania, Maumee, Perrysburg, and Holland. We install and service Trane high-efficiency gas furnaces delivering up to 97% efficiency to keep your home warm while reducing energy costs. Whether your furnace isn't heating, has stopped working, or simply needs a seasonal inspection before winter sets in, our technicians diagnose and resolve problems fast.

We also install and service high-efficiency boilers and perform gas line conversions for homeowners looking to upgrade their heating systems. With almost 70 years of HVAC experience in northwest Ohio, Overcashier & Horst brings the knowledge and equipment to handle any heating challenge — residential or light commercial. Our factory-trained technicians are licensed in both Ohio and Michigan, so we can serve customers on both sides of the state line. Call (419) 841-3333 for a free heating estimate or to schedule service.

When summer heat arrives in the Toledo area, a dependable air conditioning system makes all the difference. Overcashier & Horst provides complete AC installation, repair, and maintenance for homes and businesses across Sylvania, Toledo, Maumee, Perrysburg, and the surrounding northwest Ohio region. We install and service Trane central air conditioning systems, known for durability and long-term reliability, and offer 24/7 emergency AC service when your system fails at the worst possible time. Whether your AC isn't cooling, is running constantly, freezing up, or simply needs a pre-season tune-up, our team gets you comfortable fast.

As a Trane Comfort Specialist with over 65 years of cooling experience, we recommend the right system size and efficiency rating for your home — no guesswork, no overselling. We also serve customers in southeast Michigan, making us one of the few HVAC contractors licensed in both Ohio and Michigan. Financing is available through Wells Fargo  for qualifying customers, making a new energy-efficient AC system more accessible. Call (419) 841-3333 to schedule service or get a free estimate on air conditioning installation.

Heat pumps and ductless mini-split systems offer a versatile, energy-efficient solution for homes that need precise climate control — with or without traditional ductwork. Overcashier & Horst installs and services Trane heat pump systems and ductless mini-splits for homeowners and businesses across Sylvania, Toledo, and northwest Ohio. Heat pumps provide both heating and cooling from a single system, reducing energy consumption year-round. Ductless mini-splits are ideal for room additions, garages, older homes without existing ductwork, or any space where traditional HVAC isn't practical.

Our technicians are trained in heat pump and ductless system installation and repair, ensuring your system is sized and installed correctly for maximum efficiency and comfort. Whether you're replacing an older system, adding comfort to a new space, or looking for a more energy-efficient solution, we'll help you find the right fit for your home or business. We serve customers throughout the Toledo metropolitan area and into southeast Michigan. Call (419) 841-3333 for a free estimate on heat pump or ductless system installation.

Geothermal heating and cooling harnesses the earth's natural temperature to deliver up to 70% savings on heating, cooling, and hot water costs — making it the most energy-efficient HVAC option available for northwest Ohio homeowners. Overcashier & Horst is a WaterFurnace authorized dealer and one of the few HVAC contractors in the Toledo area with deep geothermal expertise, offering WaterFurnace Envision Series system installation and service. Unlike conventional HVAC that burns fuel or runs a traditional compressor, geothermal systems simply move heat to and from the ground — delivering reliable, consistent comfort in any season. Whether you're building a new home or replacing an aging system, geothermal is a long-term investment that pays dividends in energy savings year after year.

As the greenest Trane dealer in the region, Overcashier & Horst has the experience and certifications to design, install, and service geothermal systems for residential and light commercial applications across Sylvania, Toledo, Maumee, Perrysburg, and throughout northwest Ohio. Our factory-trained technicians understand the full system — from the ground loop to the air handler. Financing is available through Wells Fargo and Springleaf Financial to help make the upfront investment more manageable. Call (419) 841-3333 to learn more about geothermal and get a free estimate.

The quality of the air inside your home has a direct impact on your health, comfort, and well-being — and in northwest Ohio, where humidity and seasonal allergens are a constant factor, indoor air quality deserves serious attention. Overcashier & Horst provides a full range of indoor air quality solutions for Toledo-area homeowners, including Honeywell whole-house media air cleaners (40x more effective than standard 1-inch filters), Aprilaire whole-house humidifiers with automatic controls. We offer a variety of digital programmable and smart Wi-Fi  thermostats. 

Poor indoor air quality can contribute to allergy symptoms, dry skin, humidity imbalance, and general discomfort — all of which whole-house IAQ systems can significantly reduce. Whether your home feels too dry in winter, too humid in summer, or you're concerned about dust and allergens, we have a solution designed for your needs.

Our technicians assess your home's air quality needs and recommend the right combination of equipment for year-round comfort. We install and service IAQ equipment for homeowners across Sylvania, Toledo, Maumee, Perrysburg, and throughout northwest Ohio and southeast Michigan. Whole-house solutions integrate directly with your existing HVAC system, providing consistent air treatment in every room. Call (419) 841-3333 to discuss indoor air quality options or to schedule a free consultation.