Rated Best HVAC Company For Waltham, Lexington, Weston, Newton And Belmont!

Emergency Service

(781) 899-3984

Winter Is Upon Us

Let LeBlanc Mechanical inspect your furnace before it’s too late.

Emergency Service

(781) 899-3984

LeBlanc Mechanical: Providing Furnace & Heating Repair, Installation and Maintenance

Service areas include Waltham, Belmont, Newton, Lexington, Weston, Winchester, and many other local areas.
We are ranked as one of the most reliable and trusted companies in the industry.


The best furnaces are efficient. They keep a home warm and comfortable. They provide steady, dependable performance year after year. And they are quiet, long-lasting and low in service frequency and cost.

Which Furnaces are Energy Efficient?

When a furnace loses or wastes heat, it requires more energy to keep your home warm. Some furnaces lose heat through the walls of the furnace cabinet. Energy-efficient furnaces like Rheem‘ full line of state-of-the-art models significantly reduce this loss with a blanket of insulation that lines the inside of the cabinet walls.


When a gas furnace is not in operation, most send a steady, wasteful draft of warm household air traveling up the venting system and out the roof. The Rheem Classic® Series and Classic® Plus Lines – with AFUE ratings of 78% and better – feature an induced-draft blower that works in conjunction with a hot surface ignition system to pull hot gases through the heat exchanger at a constant and controlled rate of flow. As the burner cycles off, the draft blower stops, keeping the heating air in the system.

A high-efficiency furnace generally wears a higher price tag, but it can make up the difference by reducing operating costs over the long run. And with today’ consumer interest in efficiency, such equipment enhances the bottom line of your home.

Talk to us about your furnace repair, installation and maintenance needs.

Find the most Energy Efficient Furnace for Your Home or Business 

  • The best furnaces are efficient
  • The best furnaces are quiet
  • The best furnaces reduce operating costs
  • The best heat pumps have a Compliant Scroll ® Compressor
  • The best heat pumps have a higher SEER or HSPF rating

LeBlanc Mechanical Providing Furnace & Heating Repair, Installation and Maintenance

Furnace & Heating repair, installation and maintenance provided by LeBlanc Mechanical will keep your house cosy and your energy bills in check. If you’re in the area LeBlanc Mechanical can make sure your home heating system is running at it’s maximum potential. Making sure your furnace and home heating is running efficiently is extremely important in providing your home with stable temperatures all year round.


When the time comes to replace a furnace in an existing central heating system, or to install a totally new system, you want equipment that minimizes costs and delivers dependable comfort for your family – season after season. LeBlanc Mechanical has the experience necessary to help you make the best move with your home comfort systems. We handle repairs and new installations of high efficiency gas, oil, and electric furnaces as well as heat pumps.

We Service And Install The Highest Efficiency Equipment In The Industry 

High Efficiency units use the least amount of energy. This is beneficial to both our planet and your energy bill.

What Should I Know About SEER and HSPF?

The Department of Energy requires all air-conditioning and heating equipment manufacturers to evaluate and rate the efficiency of their equipment on a seasonal basis. These ratings are known as the SEER or, Seasonal Energy Efficiency Rating, for air conditioners, and the HSPF or, Heating Seasonal Performance Factor, for heating equipment.

Heat pumps use both numbers. The higher the SEER or HSPF rating, the more efficient the heat pump. High-efficiency units cost more. But since operating costs are lower, the payback period may be shorter than you realize. A high SEER/HSPF heat pump also can add value to your home which is important to today’ energy-