The Best HVAC in Union, NH

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

#1

White Mountain Climate Control

4.8
(127 reviews)
Verified

A premier full-service HVAC contractor specializing in high-efficiency heating and cooling solutions for Union's harsh climate. Experts in cold-climate heat pumps, oil-to-gas conversions, and advanced zoning systems. Known for meticulous installation and responsive 24/7 emergency repair service.

452 Mountain View Road, Union, NH 03887

Specialties & Features

Cold Climate Heat Pumps
24/7 Emergency Service
Energy Efficiency Audits
Oil-to-Gas Conversion
Radiant Heating Systems

Business Information

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

Union Heating & Cooling

4.6
(94 reviews)
Verified

A trusted local family-owned HVAC business providing reliable installation, maintenance, and repair services for over two decades. They have deep expertise with the furnaces and boilers common in older New England homes and offer comprehensive maintenance plans to ensure system longevity through harsh winters.

121 Main Street, Union, NH 03887

Specialties & Features

Furnace & Boiler Service
Ductwork Design & Sealing
HVAC Maintenance Plans
Indoor Air Quality Solutions
System Repairs

Business Information

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

Efficient Home Solutions NH

4.5
(68 reviews)
Verified

Specializes in modern, energy-efficient HVAC upgrades and smart home integration. Focuses on helping homeowners reduce heating costs with state-of-the-art equipment like modulating furnaces and Wi-Fi thermostats. They are certified energy auditors and excel at ductless mini-split installations for home additions.

88 Granite State Drive, Unit 3, Union, NH 03887

Specialties & Features

Energy Efficiency Upgrades
Ductless Mini-Splits
Smart Thermostats
Geothermal Consulting
Emergency Repair Service

Business Information

Years in Business:11 years
Licensed:Yes
Insured:Yes

Why These Are the Top HVAC Contractors in Union

Union, NH, experiences a humid continental climate with cold, snowy winters and warm, humid summers, placing significant demand on both heating and cooling systems. The local HVAC market is competitive with a focus on reliability and emergency services during winter storms. Homeowners often seek to upgrade older oil-fired systems to more efficient propane or heat pump systems to manage high heating costs. Summer demand focuses on AC installation and maintenance to handle humid conditions. The market consists of a mix of long-standing local family businesses and newer companies specializing in energy efficiency.

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 Union regulations and climate

Frequently Asked Questions About HVAC in Union

Get answers to common questions about hvac services in Union, New Hampshire.

1What is the typical cost range for replacing a full HVAC system in a Union, NH home?

For a complete system replacement (furnace and central air conditioner or heat pump), Union homeowners can expect a range of $8,000 to $15,000+, depending on home size, system efficiency, and installation complexity. New Hampshire's cold winters often necessitate a focus on a high-efficiency furnace or a cold-climate heat pump, which can be a higher initial investment but offers significant long-term savings on heating bills. Always get multiple itemized quotes from local, licensed contractors to understand the specific costs for your home.

2When is the best time to schedule HVAC maintenance or replacement in Union?

The ideal times are during the "shoulder seasons"—late spring (April-May) for air conditioning service and early fall (September-October) for heating system service. Scheduling during these periods avoids the extreme demand of a July heatwave or a January cold snap, ensuring better availability and often more competitive pricing from local HVAC companies. For replacements, planning in the fall is critical to ensure your heating system is fully operational before the harsh New England winter arrives.

3Are there any local regulations or rebates I should know about for HVAC upgrades in New Hampshire?

Yes, Union residents should be aware of both state and utility-specific incentives. New Hampshire offers rebates for qualifying high-efficiency systems through the NHSaves program, administered by local utilities like Eversource and Unitil. Additionally, all HVAC work in NH must be performed by a licensed professional, and certain electrical or gas line modifications require permits from the Town of Union, which your reputable contractor will typically handle.

4How do I choose a reliable HVAC contractor in the Union area?

Prioritize contractors who are locally based, fully licensed (NH Mechanical and Gas Fitting licenses), insured, and have strong, verifiable references from other homes in Carroll County. Look for companies with specific experience installing and servicing systems suitable for our climate, such as cold-climate heat pumps or high-efficiency oil/gas furnaces. Checking their standing with the Better Business Bureau and reading local online reviews can also provide valuable insight into their reliability and customer service.

5My heat pump seems inefficient during the coldest weeks in Union. Is this normal, and what are my options?

It is common for standard air-source heat pumps to lose efficiency and require supplemental heat when temperatures drop below freezing, which is frequent in Union's winters. A solution is to install a specially designed cold-climate heat pump (CCHP) that operates efficiently at much lower temperatures. Alternatively, many homes use a dual-fuel or hybrid system, which pairs a heat pump with a traditional furnace (propane, oil, or gas) that automatically takes over during extreme cold, providing optimal comfort and efficiency year-round.