HVAC Installation Mistakes You Need to Know
Every household requires high-quality and reliable appliances to offer a peaceful lifestyle for residents. It
Trust Your Local Heating & Cooling Experts.
Our experienced team of technicians is proud to serve Cape Cod since 2010.
WELCOME TO HIGH EFFICIENCY
Focused on extraordinary, clean, professional service, and maintenance.
Located in Sandwich Massachusetts, High Efficiency LLC was founded by Craig Bishop in 2010. Fully licensed and insured, High Efficiency is focused on providing residential and commercial clients with extraordinary, clean, professional service and maintenance for their heating and cooling systems. We are dedicated to providing each and every customer with our exceptional knowledge and superior equipment for all their HVAC needs.
AIR PURIFICATION MADE SIMPLE
Protect Your Home & Business with an Air Purification System
High-Efficiency LLC Air Purification products can help reduce contaminants in the air of your home or business. Our products can keep your family, loved ones, and staff protected from the virus spreading, including COVID-19. Our Air Cleaners and HVAC filters are designed to add a layer of protection to your home or business from pollutants like dust, dirt, mold, mildew, and pollen. See why our products can bring quality air to your home or business.
Experience the High Efficiency Difference.
SIMPLE, QUICK & convenient
Making your comfort our priority since 2010.
Speak to our trained, dedicated, and skilled staff about your HVAC & plumbing needs. Our team will evaluate your project and provide an estimate and timeline to complete your request on time!
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Real customers, real stories.
Craig is the BEST!!!! He always gets the job done with a smile and is very knowledgeable, efficient, cost effective and leaves the work area clean ; ) Look no further for your HVAC needs!!
Thought Alan was wonderful. He did a great job. Very efficient, neat, knowledgeable.
Mickey M
Sandwich, MA
guaranteed worry-free maintenance
Making your comfort our priority since 2010.
We know repairs can be expensive so we offer Service Agreements to help cut your costs.
RECENT NEWS & UPDATES
How Do You Know If There Is a Leak in Your HVAC System?
Every HVAC system can leak from time to time. However, the concern is that homeowners
Common HVAC Installation Mistakes and How to Avoid Them
Every household requires high-quality and reliable appliances to offer a peaceful lifestyle for residents. It
Mini Splits vs. Window Air Conditioners
Mini-splits are compact, space-friendly, and efficient alternatives to window air conditioners. On the other hand,
How to Save on Air Conditioning Costs
Invest in LED bulbs Light bulbs in the home are often ignored when homeowners intend
Why is My Air Conditioner Freezing Up?
Imagine you are relaxing in your home on your couch, watching an excellent series, and
The High Efficiency Advantage
See How we can help save money on your next project
Browser our specials and discounts to see how High Efficiency can save you money!
