Commercial HVAC & Refrigeration · Serving All of Maine
MacPherson Werks for you.
One company. Designed, built & maintained right.
MacPherson Werks is a veteran-owned mechanical contractor delivering design-build HVAC, preventative maintenance, and commercial refrigeration for property managers, facility teams, and multi-location operators — executed with discipline and attention to detail on every job.
✓ Veteran Owned
✓ Single-Source Accountability
✓ Natural Gas & Propane Licensed
✓ All Makes & Models
✓ Statewide Coverage
What We Do
We Take Care of It All
From the first drawing to the hundredth service visit, one team owns your mechanical systems. No juggling subcontractors. No finger-pointing.
Design Build
One company designs and installs your system — single-source accountability with fewer middlemen.
Preventative Maintenance
Scheduled service programs that protect uptime, extend equipment life, and keep budgets predictable.
Heating & Cooling
Gas-fired boilers, furnaces, hydronic and radiant heat, and large packaged systems — all makes and models.
Commercial Refrigeration
Walk-in coolers, freezers, and refrigerated warehouse installations built for Maine's commercial operators.
The Design-Build Advantage
One Contract. One Team. One Point of Accountability.
Design-build is a project delivery method where a single company is responsible for both designing and installing your system. Instead of hiring an engineer, bidding the drawings out, and managing a separate contractor, you work with one team from concept through commissioning.
The result: fewer handoffs, faster decisions, and no gaps between the people who drew it and the people who built it.
How Design Build WorksTraditional Design-Bid-Build
• Separate designer and installing contractor
• Multiple contracts and invoices to manage
• Gaps and finger-pointing when problems surface
Design-Build With MacPherson Werks
• One contract and one point of contact
• Design and installation under one roof
• We own the outcome — first drawing to final commissioning
Who We Serve
Built for Commercial Operators
Property Managers
Responsive service and clear reporting across your entire portfolio.
Facility Managers
A maintenance partner that keeps systems running and budgets on track.
Multi-Location Businesses
One contractor and one agreement for every site you operate in Maine.
Refrigerated Warehouses
Cold storage and distribution facilities where temperature can't fail.
Veteran Owned & Operated
Every Project Executed With Discipline
01
Discipline
Plans are made, schedules are kept, and crews show up ready. Military standards carried onto every job site.
02
Attention to Detail
Clean installs, documented work, and systems commissioned right the first time — the details others skip.
03
Accountability
One company answers for the result. If something isn't right, you know exactly who will fix it.
Our Process
From Assessment to Ongoing Care
1 · Assess
Site walk, load requirements, existing equipment, and your goals.
2 · Design
System design and a clear proposal with scope, schedule, and budget.
3 · Build
Our crews install, test, and commission the complete system.
4 · Maintain
Preventative maintenance keeps it performing for years to come.
Service Area
Covering All of Maine
From York County to Aroostook, we serve commercial facilities statewide — so your multi-location portfolio can run on one contractor.
Southern Maine · Greater Portland · Lewiston–Auburn · Midcoast · Central Maine · Western Mountains · Bangor & Downeast · Aroostook County
Check Your LocationRecent Work
Featured Projects
Design Build
Medical Office Mechanical Fit-Out
Lewiston, ME · 18,000 sq ft · Load calcs, ductwork design & four new rooftop units — one contract, delivered on schedule.
Refrigeration
Grocery Walk-In Cooler & Freezer Build
Portland, ME · New walk-in cooler and freezer with remote condensing units, alarms & temperature monitoring.
Heating
School Boiler Plant Replacement
Augusta, ME · Two high-efficiency condensing boilers, new controls & venting — installed over summer break.
Start a Project
Tell Us About Your Facility
Whether it's a new build, a system replacement, or maintenance for a dozen locations, we'll respond with a clear next step.