Trefz Mechanical

John Trefz
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Trefz Mechanical, Inc. provides custom heating & cooling services for residential, commercial, and industrial clients. Having served the heating/cooling industry exclusively for over four decades, our staff is as comfortable with large, specialized assignments as it is with limited scope projects.

Since we are a family owned/operated business, accountability is everything. Quite simply, we safeguard our good name by making absolutely certain customers get their desired results. Our methodology relies heavily on client contact; clarifying objectives before drafting and implementing solutions that carefully balance the full range of considerations.

By maintaining ongoing communications with all key participants, through all phases of an engagement, Trefz Mechanical professionals are able to assure clients premium quality heating and cooling services. Working in close accordance with a commonly agreed upon plan makes it easy for us guarantee superior quality, and stand behind our work every time.

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Trefz professionals always look carefully for ways to offer value to you, regardless of project scope. If you have had difficulty finding excellent, timely...

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Ogontz Campus
Oreland
Penllyn
Oaks
North Wales
Norristown
North Hills
North Penn
Penn Valley
Penn Wynne
Plymouth Valley
Pottstown
Prospectville
Plymouth Meeting
Phoenixville
Pennsburg
Perkiomenville
New Hanover Township
Neiffer
Maple Glen
Meadowbrook
Melrose
Mainland
Lower Salford
Linfield
Lower Gwynedd
Melrose Park
Merion
Montgomery Township
Montgomeryville
Narberth
Mont Clare
Miquon
Merion Park
Merion Station
Rahns
Red Hill
Upper Gwynedd
Valley Forge
West Conshohocken
Upper Dublin
Tylersport
Trappe
Trooper
West Point
Willow Grove
Wynnewood
Zieglersville
Zieglerville
Wyndmoor
Wyncote
Worcester
Woxall
Telford
Sumneytown
Rydal
Salford
Salfordville
Royersford
Roslyn
Rockledge
Rosemont
Sanatoga
Sassamansville
Spring Mount
Springhouse
Stowe
Spring House
Souderton
Schwenksville
Skippack
Limerick
Lederach
Conshohocken
Creamery
Cynwyd
Colmar
Collegeville
Center Square
Cheltenham
Delphi
Douglass
East Norriton
Elkins Park
Erdenheim
East Greenville
Earlington
Dresher
Eagleville
Cedars
Cedarbrook
Baederwood
Bala
Bala Cynwyd
Audubon
Ardsley
Ambler
Ardmore
Belmont Hills
Bethayres
Bryn Athyn
Bryn Mawr
Carroll Park
Broad Axe
Bridgeport
Black Horse
Blue Bell
Fagleysville
Fairview Village
Huntingdon Valley
Indian Valley
Jarrettown
Horsham
Hollywood
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Haverford
Jeffersonville
Jenkintown
Lansdale
Laverock
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Lamott
Lafayette Hill
King of Prussia
Kulpsville
Hatboro
Harleysville
Foxcroft Square
Franconia
Frederick
Foxcroft
Fox Chase Manor
Flourtown
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Gulph Mills
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Green Lane
Graterford
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Abington