Top 3 HVAC Contractors in Knoxville

Compare the highest-rated hvac professionals in Knoxville, Maryland. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Appalachian Climate Control

4.8
(142 reviews)
Verified

A premier HVAC contractor serving Knoxville and the surrounding Frederick County area with a focus on high-efficiency heating and cooling solutions. They are known for their expertise in handling the region's humid summers and cold winters, offering top-tier brands like Trane and Carrier. Their technicians are NATE-certified and specialize in complex installations, including geothermal and ductless mini-split systems, making them a go-to for both new construction and retrofits.

8501 Maryland Drive, Knoxville, MD 21758

Specialties & Features

Energy Efficiency Upgrades
Geothermal Systems
24/7 Emergency Service
High-Efficiency HVAC Installation

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
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#2

Knoxville Heating & Air

4.6
(115 reviews)
Verified

A locally owned and operated HVAC company with deep roots in the Knoxville community. They provide a comprehensive suite of services, from routine maintenance plans designed to maximize system lifespan in the variable Maryland climate to full system replacements and intricate ductwork design. They are praised for their honest diagnostics, clean work, and expertise with both modern high-efficiency furnaces and older system repairs.

112 Main Street, Knoxville, MD 21758

Specialties & Features

Comprehensive Maintenance Plans
Furnace Repair & Installation
Ductwork Design & Sealing
24/7 Emergency Service

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes
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#3

Potomac Valley Air Experts

4.5
(98 reviews)
Verified

Specializing in fast and reliable HVAC service, this company is a trusted name for emergency repairs and system tune-ups in the Knoxville area. They work with a variety of quality brands and are particularly adept at solving airflow and thermostat issues common in older homes. Their focus on customer education and upfront pricing has built a strong reputation for trustworthiness and technical skill in both residential and light commercial HVAC.

7405 Potomac Vista Lane, Knoxville, MD 21758

Specialties & Features

Emergency HVAC Repair
Air Conditioning Maintenance
Indoor Air Quality Solutions
Smart Thermostat Installation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
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Why These Are the Top HVAC Contractors in Knoxville

Knoxville, MD, experiences a humid continental climate with hot, humid summers that strain AC units and cold winters requiring reliable furnace operation. This seasonal demand creates a robust market for HVAC installation, maintenance, and emergency repair services. Homeowners in this historic area often seek energy efficiency upgrades to manage costs in older homes and value contractors with expertise in both modern high-efficiency systems and the maintenance of older units. The local market is competitive with a focus on trusted, long-standing companies that offer 24/7 emergency response.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Knoxville regulations and climate