Commercial Services
Energy waste is an operating cost. You can control it.
Commercial insulation and air sealing in Maine and New Hampshire.
Poorly insulated commercial buildings cost more to operate, are harder to keep at a comfortable temperature, and more difficult to lease competitively. We assess your building, fix the envelope, and get the work done around your operating hours.
If you manage or own commercial property in Maine or New Hampshire, this is familiar.
Energy line items that keep growing
Every heating season costs more. The building envelope is almost always a primary driver — and it is fixable.
Tenants who complain about temperature
Uneven heat, cold spots near exterior walls, and drafts are building envelope problems. They drive tenant dissatisfaction and turnover.
A building that never performs to standard
Many commercial properties in Maine and New Hampshire were built before current energy codes. They have never worked the way they should.
Compliance and documentation requirements
Renovations often trigger energy code requirements. We help you meet them and provide the documentation you need.
Sustainability commitments you need to show
Energy performance improvements need to be documented to count toward ESG and reporting goals. We provide it.
We work with property owners and facilities managers across Maine and New Hampshire. We have assessed warehouse buildings, office properties, multi-unit residential, and retail spaces. We know where commercial buildings lose energy and we know how to stop it without shutting down your operation.
How a commercial project works with us.
We assess your building.
BPI-certified diagnostic including blower door testing and thermal imaging. We work around your operating schedule — not against it.
You receive a prioritized report.
Every energy loss point documented and ranked by impact and cost to fix. You have what you need to make a budget decision — not a vague recommendation.
Our crews install the work.
Insulation, air sealing, and weatherization performed in-house. Scheduled around your building's operational requirements.
When we do this work
What changes.
Lower energy line items. Tenants who stop calling about temperature. Documented improvements you can report. A building that finally performs the way it should.
Without it
What continues.
Every heating season without addressing the building envelope is money spent heating the outdoors. Tenants notice. The P&L reflects it.
Commercial Services
Property Types We Serve
What happened after homeowners called us.
"They found air leaks we had no idea existed. Our heating bill dropped 30% that first winter. The crew was fast and clean — they left the place better than they found it."
Sarah M.
Portland, ME
"I expected to spend weeks dealing with rebate paperwork. They handled everything. The check showed up in six weeks. Couldn't have been easier."
David R.
Concord, NH
"We had three companies look at our drafty sunroom. SGH was the only one who actually tested it with a blower door. Night and day difference after the work."
Karen B.
Kennebunk, ME
Get In Touch
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Where We Work
Serving Southern Maine & New Hampshire
Based in Lebanon, Maine — your neighbors in energy efficiency.
Maine
Portland · South Portland · Scarborough · Saco · Biddeford · Kennebunk · Sanford · Lebanon · Berwick · Kittery · York · Gorham · Windham · Brunswick · Auburn · Lewiston
New Hampshire
Portsmouth · Exeter · Hampton · Dover · Rochester · Concord · Manchester · Nashua · Bedford · Londonderry
Don't see your town? (800) 625-5958 — we likely serve your area.
Find out what your building is losing.
Request a commercial assessment. We work around your schedule.