Portfolio
Recent Projects
Mid-coast Maine · High-Performance Residential
About Northridge
Northridge Construction LLC was founded by Mike Martin in 2017 to bring premium residential construction services to Maine's Mid-coast. We specialize in high-performance, energy-efficient new residential construction and renovations.
We start with your site and architectural design. Then we provide you with a detailed cost estimate and work transparently with you to fit your budget. [add link to example]
Once the project starts, the cost tracking begins. Every subcontractor we bring to your site has worked with us before. That network — and the transparency we build around it — is one of Northridge's strengths.
2017
Founded
0.92
ACH₅₀ — Best recent blower door result
10+
Trusted trade partners
Mid-coast
Maine service area
Portfolio
How We Work
Before we break ground, you receive a detailed cost estimate broken down by trade. No lump-sum mystery numbers. The pages below document completed projects — what was built, how it was organized, and what it actually cost — so you can start a conversation with Northridge knowing what to expect.
New Construction · 2024
1,900 sf · 3 bed · 2.5 bath. Detailed trade-by-trade cost breakdown for a high-performance new construction home completed in Midcoast Maine.
View Cost Study →
New Construction · Coming Soon
Cost study in preparation.
Renovation · Coming Soon
Cost study in preparation.
Interactive Tool
Add your proposed spaces below. We'll apply current Midcoast Maine unit costs to give you a rough order-of-magnitude estimate — broken down by trade. This is a planning tool, not a contract. Contact us for an actual estimate.
Press Enter or + to add a space. Click × to remove.
Unit cost: $390/sf · 2025 Midcoast Maine · conditioned space only. Site work, land, design fees, and permits not included.
Add your first space
to see the cost breakdown.
The People
Every trade on a Northridge project is a partner who has worked with us on many projects.
Mike Martin
Owner & General Contractor
Founded Northridge in 2017. Manages all estimating, subcontractor relationships, and on-site oversight.
Susie Meadows
Office Manager
Keeps the office running — scheduling, correspondence, and project administration.
Trade Partners
Tim Dube
Dube's Construction
Adam MacDonald
MacDonald Concrete
Gary Ensworth
Maple Knoll Builders
Jamie Luce
Maple Knoll Builders
Forrest Larrabee
Larrabee Plumbing
Donny Manson
Manson Finishes
Jeff Niess
Niess Tile
Kevin Gray
Kenney & Gray Electric
Svea Tullberg
Maine Blower Door Testing
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Client Words
I respect and appreciate Mike and his crew for their quality work on our architect-designed high-performance home; for following detailed engineering specifications to the letter; and for keeping costs and scheduling in line with our expectations.
Gregory Arms
Belfast, ME
Not only is Mike a genuinely nice individual but also an honest, transparent, and quality professional builder. He has cultivated the finest subcontractors that Maine has to offer. Their attention to precision and detail are unmatched anywhere.
Frank Garnier & Joseph Lipscomb
Lincolnville, ME
From our initial meeting through the project's completion, Mike was consistently present and engaged. He kept the project on budget and ensured every detail was handled with care. Their loyalty to Mr. Martin and dedication speak volumes about the character of his company.
Aladar Nesser
Camden, ME
I learned that I could trust Mike to overcome any challenges we might meet. His well-staffed crew demonstrated the same commitment to the very best work. It's unique in our experience to come through it with such high regard for the general contractor and crew.
Valerie Tate
Belfast, ME
We have used Northridge Construction on three occasions — water damage repair, renovation, and new construction. We were so pleased with their work each time that we kept coming back. We recommend them highly!
Bill & Karen Meadows
Liberty, ME
Mike, your company did excellent work. You and the subcontractors were easy to talk to, competent, fair and kind. I can't say enough good things about you and your business.
Debbie Wolozin
Palermo, ME
Common Questions
A typical cost range is $350 to $425 per square foot for the home itself. The larger the home's conditioned area, the lower the cost per square foot, and vice versa. Note that this cost refers to the structure — not the lot, site utilities, or design fees. Use our Project Cost estimator above for a rough breakdown, or contact us for a detailed estimate.
The tighter the envelope, the lower the operating cost — but a healthy indoor environment requires controlled air exchange. In high-performance construction, that exchange happens through a mechanical ventilation system (typically an HRV or ERV), not through random air leakage. A cost-effective standard is the Pretty Good House framework. Air-tightness is measured with a blower door test.
Our most recent blower door result was 0.92 ACH₅₀ — three times better than Maine's building code requirement. Achieving that level of air-tightness requires careful detailing at every penetration and joint, and is a direct result of working with the same skilled trade partners on every project.
No — Northridge is a general contractor, not a design firm. We work from drawings and specifications provided by your architect or designer. If you need a recommendation for a design professional experienced in high-performance construction in Midcoast Maine, we're happy to suggest partners we've worked with successfully.
Every project begins with a detailed, trade-by-trade cost estimate before any contracts are signed. We break costs down by division so you can see exactly where your budget is going — foundation, framing, mechanical, finishes, and so on. See our Delivery section for real cost studies from completed projects.
Get in Touch
Whether you have a set of plans or just an idea, we're glad to talk through what your project might look like — and what it might cost.