Purchase this list and others as an Excel document at nhbr.com/special-editions/the-book-of-lists
(RANKED BY NUMBER OF NH EMPLOYEES)
Firm
Location
Top Management
Phone
Website
No. of NH
Employees
2022 Sales
Specialties
1. Denron Hall Plumbing & HVAC
605 Front Street
Manchester, NH 03102
Joel Pickering, pres.
603-627-4186
denronhall.com
280
$48 million
HVAC, Piping, Plumbing
2. DECCO Inc.
1900 Southwood Drive
Nashua , NH 03063
Kyle Reagan, ceo
603-673-2200
decco.com
219
$61 million
HVAC, Industrial Piping, Piping, Plumbing, Process Piping, Process & Mechanical Contractor
3. Granite State Plumbing & Heating, LLC
17 Oil Mill Road
Weare, NH 03281
Kenneth Duchesne, pres.
603-529-3322
gsphinc.com
150
N/A
HVAC, Industrial Piping, Piping, Plumbing, Process Piping, Refrigeration, Engineer, Medical Gas, Mechanical Services
4. Palmer & Sicard Inc.
140 Epping Road
Exeter, NH 03833
Mark J. Hodsdon, pres.
603-778-1841
palmerandsicard.com
90
N/A
HVAC, Plumbing, Engineer, Design-Build
5. Heritage Home Service
28 Commercial Court
Auburn, NH 03032
Brad Chartier, pres.
603-354-0092
justcallheritage.com
85
N/A
Electrical, HVAC, Plumbing
6. Eckhardt & Johnson LLC
6 Eastpoint Drive
Hooksett, NH 03106
Daniel C. Clair, pres./treas.
603-622-7493
eckhardtjohnson.com
75
$15.1 million
HVAC, Industrial Piping, Plumbing, HVAC Engineering, Medical Gas, Certified Pipe Welding, Ductwork, Mechanical Insulation
7. Al Terry Plumbing & Heating Inc.
1776 Hooksett Road
Hooksett, NH 03106
Michael J. Terry, pres.
603-485-4205
alterryplumbing.com
50
N/A
HVAC, Piping, Plumbing, Process Piping, Refrigeration
8. RTH Mechanical Contractors Inc.
17 Production Drive
Dover, NH 03820
Richard Hansell, pres.
603-772-9779
rthmechanical.com
50
N/A
HVAC, Industrial Piping, Piping, Plumbing, Process Piping, Refrigeration
9. Northern Peabody, LLC
25 Depot Street
Manchester, NH 03101
Jack Doherty, ceo
603-669-3601
northernpeabody.com
45
N/A
HVAC, Industrial Piping, Piping, Plumbing, Process Piping, Refrigeration, Medical Gases
10. MSI Mechanical Systems Inc.
10-12 Delaware Drive
Salem, NH 03079
Thomas Hooper Sr., pres.
603-890-6900
msimechanical.com
35
N/A
HVAC, Industrial Piping, Process Piping, Refrigeration, Chiller Services & HVAC Maintenance Programs
11. ARC Mechanical Contractors Inc.
1 Glen Road Plaza, Suite 201
West Lebanon, NH 03784
Jody Perkins & Andy Courchesne, co-owners
603-443-6111
arcmech.com
30
N/A
HVAC, Industrial Piping, Piping, Plumbing, Process
Piping, Refrigeration
12. Dowling Corporation
363 Exeter Road
Hampton, NH 03842
Michael Houghton, pres.
603-433-1311
dowlingcorp.com
28
N/A
HVAC, Piping, Refrigeration
13. Jim Trombly Plumbing, Heating & Cooling
257 Bridge Street
Manchester, NH 03104
Shirley Panzieri, pres./ceo
603-668-5468
tromblyplumbing.com
20
$4 million
HVAC, Piping, Plumbing, Water Filtration, Conditioning & Purification
14. Harry W. Wells & Son
19 Crown Street
Nashua, NH 03060
Brad Chartier, pres.
603-882-4492
justcallheritage.com
18
N/A
HVAC, Plumbing, Gas Piping
15. Froling Energy
20 Manchester Street
Keene, NH 03431
Mark Froling, pres.
603-924-1001
frolingenergy.com
15
N/A
HVAC, Industrial Piping, Piping, Process Piping, Biomass Boiler Systems, District Heating, Fuel Production & Delivery
16. Mechanical Concepts Inc.
35 Fieldstone Lane
Candia, NH 03034
David Paprocki, pres.
603-483-0555
mechanicalconcepts-inc.com
14
N/A
Industrial Piping, Piping, Plumbing, Process Piping
17. Federal Piping Co. Inc.
Route 25, 211 Porter Road, PO Box 271
Freedom, NH 03836
David E. Boyd, pres./vp
603-539-5826
federalpiping.com
10
N/A
Piping, Plumbing, Process Piping, Heating, Mechanical
Source: NH Business Review survey
