Mission Statement

Pinnacle Rock’s mission is to build a sustainable company based on honesty, integrity and hard work. Relentless in the pursuit of customer satisfaction and employee excellence. To be a solution provider to our clients and to truly partner with our customers as a team player in their facilities


Eugene Hennessy started his company with the idea of being THE best single-source facilities service provider. He has a passion for executing the work required to keep facilities operating at peak efficiency. Eugene’s boundless energy drives the company forward today.

Pinnacle Rock was launched in 2005 as a mechanical services contractor serving industrial clients throughout New Hampshire and Massachusetts.

By 2009, the company had grown into a regional leader in the repair, maintenance and installation of HVAC and Restaurant Equipment.

Today, Pinnacle Rock provides a full range of facilities remodeling and mechanical equipment services to commercial and industrial clients stretching from Maine to Virginia. How can we help your business build a better future? Call us at 888-285-3689.

What We Do

We eagerly serve you and all of your facilities’ needs.

HVAC, Plumbing, Drainage, Remodeling and Electrical:

If you can think it, we can build it, repair it and service it!

Pinnacle Rock is passionate about revolutionizing the service experience. Everyone else talks about service but we knock your socks off with it (in a good way)!

We cheerfully handle your facilities service needs:
  • Our foundation in HVAC services is rock solid! From day one, Pinnacle Rock has always been the go-to company for HVAC and mechanical services in commercial and industrial facilities. We perform amazing service for our clients and keep getting recommended for bigger projects!
    Pinnacle Rock works to control the climate perfectly in your space, handling large commercial as well as small business HVAC needs.

    • Rooftop units
    • Centrifugal chillers
    • Computer Rooms
    • Offices and manufacturing floors
    • Restaurant and retail spaces
    • Athletic and training facilities

  • Water flowing dependably, uphill and down, is mission critical for our clients. Pinnacle Rock provides complete plumbing and drainage maintenance services. Depend on us to keep the water on and flowing where it should.
    Our complete plumbing installation and repair work includes:

    • Kitchen and Bathroom Additions
    • Vanities and Showers
    • Faucets, Fixtures and Accessories

  • It won’t be fresh unless you keep it cold. Pinnacle Rock understands refrigeration for food service, industrial and scientific requirements. We handle all refrigeration needs from the basic to the complex.
    Save on energy costs with the latest in refrigeration technology. We install the most energy efficient systems available.

    • Commercial and Industrial Chillers
    • Restaurant and Retail Thermal Control Expertise
    • Comprehensive repair Services
    • Generators and Power Backup Service

  • Pinnacle Rock handles everything needed to build out or remodel your facility. Our courteous and professional tradesmen are pleased to serve you for all of your construction and repair needs.
    One reliable source. Pinnacle Rock handles everything for you:

    • Carpentry
    • Flooring
    • Tiling & Masonry
    • Drywall & plastering
    • Carpeting
    • Painting
    • More…

  • Choosing and installing the right insulation for thermal and acoustic uses requires experts. Pinnacle Rock knows what to specify and how to install it properly. Save big on your future heating and cooling costs by calling the insulation experts at Pinnacle Rock.
    Our complete insulation services include:

    • Old insulation removal
    • Materials specification
    • Energy efficiency recommendations
    • Installation
    • Exterior and interior refinishing

  • Keeping the drains and pipes flowing freely is vital for many businesses. Let Pinnacle Rock inspect, clear and maintain your drains and wastewater systems. You’ll never need to worry about clogs or messy, smelly backup! We’ll keep your drains in the clear.
    Our drain cleaning service surpasses all others in:• Emergency troubleshooting and repair

    • Complete drain clearing and debris removal
    • Drain line cleaning
    • Worry free drainage maintenance

  • Pinnacle Rock has been tested by the toughest customers. The restaurant business is like nothing else. It’s fast-paced and service intense. Your equipment needs to serve you so you can serve your customers. Pinnacle Rock takes care of everything inside a restaurant’s walls. Complete kitchen and dining equipment service and repairs are among our hallmark strengths.
    Call us first if it’s restaurant facility services!

    • Equipment installation and repair• Custom fit ups
    • Hood cleaning
    • Grease stops
    • Welding
    • Everything your restaurant needs!

  • If you want it fixed, we will find a way to repair it! Pinnacle Rock is an approved warranty agent for multiple HVAC and commercial kitchen equipment manufacturers. We can service just about anything. To us, it’s always about making sure our customers are completely satisfied.
    Pinnacle Rock stands for something solid – unwavering service. Contact us for anything you need serviced or repaired:

    • Grease Hoods
    • Commercial ovens
    • Walk in coolers
    • Exhaust fans and curbs
    • All major appliances
    • Much more…

We’re trusted to do the work right! And we’re here to help you. Call us at 888-285-3689

Case Studies

Rental solutions

Pinnacle Rock is proud to offer portable air conditioning solutions. No matter how big or small your cooling needs are, we have the right choice for you. We can help you cool everything from server rooms and offices to schools and medical facilities. Our solutions are flexible and cost-effective.

Please call us to discuss your cooling needs. Whether you are renting daily, weekly, or monthly we will work to fit your budget. Call now for a quote!!

Rental orders and inquiries, please call 888-285-3689


Pinnacle Rock is currently hiring qualified service technicians in the following fields:

Heating, Ventilation and Air Conditioning
Equipment Service/Repair
Facilities Coordinator
Customer Service Assistant

Pinnacle Rock is expanding our family of passionate service professionals. If you wish to become a part of our team, please send your resume to  jobs@pinnaclerock.biz


Pinnacle Rock LLC

We eagerly serve you and all of your facilities’ needs. HVAC, Plumbing, Drainage, Remodeling and Electrical: If you can think it, we can build it, repair it and service it! Pinnacle Rock is passionate about revolutionizing the service experience. Everyone else talks about service but we knock your socks off with it (in a good way)! We cheerfully handle your facilities service needs:
Pinnacle Rock LLC
Pinnacle Rock LLCSaturday, January 3rd, 2015 at 11:43am
This makes for a bad day for any restaurant.
2    View on Facebook
Pinnacle Rock LLC
Pinnacle Rock LLC added 7 new photos.Thursday, December 4th, 2014 at 11:01am
It is extremely important to make sure the precipitator for your exhaust system is taken care of properly and cleaned on a regular schedule. Below pictures are of a job completed last night on 52nd Street in New York City.
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Pinnacle Rock LLC
Pinnacle Rock LLCSaturday, November 29th, 2014 at 12:48am
Winter is here to stay in New Hampsire.
5    View on Facebook
Pinnacle Rock LLC
Pinnacle Rock LLC added 3 new photos.Wednesday, November 19th, 2014 at 5:03am
Some pictures from New York City today.
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Pinnacle Rock LLC
Pinnacle Rock LLCTuesday, November 18th, 2014 at 12:51am
This is an electrical duct heater that shorted out to the casing. If you look close enough you will see the aluminum support blown apart. This was on a job site in downtown Providence Rhode Island.
3    View on Facebook

Contact Us

  • To reach the Pinnacle Rock family of companies:
    • Headquaters:
    • 28 Jones Rd. Milford, N.H. 03055  –  888.285.3689
  • The section where they can fill out their information
  • Also more numbers:
    • Development: 888.285.3689 X 105
    • Service: 888.285.3689 X 106
    • President – Eugene Hennessy: 888.285.3689 X 101

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Pinnacle Rock LLC | Copyright 2013