About J&M Contracting — NH + MA Residential General Contractor
Full-service residential contracting across Southern NH and Northern MA.
Our Story
J&M Contracting was founded on a straightforward idea: homeowners deserve a contractor who manages the entire project — not just the parts they can see. We built our company around oversight, clear communication, and a network of skilled tradespeople who share our standards.
Based in Southern New Hampshire, we serve homeowners across Southern New Hampshire and Northern Massachusetts — from the Seacoast to the Merrimack Valley and everywhere in between. Whether it's a kitchen remodel in Concord or a custom home build in Exeter, we bring the same level of dedication and attention to every project.
Our approach is simple: we plan thoroughly, communicate constantly, and hold every trade on your project to the highest standard. The result is work you can trust and a process you can actually enjoy.
Our Process
Consultation & Planning
We start with a conversation about your goals, timeline, and budget. We visit your property, assess the scope, and outline a clear plan of action.
Design & Estimation
We coordinate with designers and engineers as needed, develop detailed estimates, and finalize the project scope so there are no surprises.
Construction & Oversight
Our team manages every trade on-site — scheduling, quality checks, inspections, and daily progress tracking. You get regular updates throughout.
Final Walkthrough & Handoff
We walk through every detail with you, address any final items, and make sure you're completely satisfied before we call the project complete.
Consultation & Planning
We start with a conversation about your goals, timeline, and budget. We visit your property, assess the scope, and outline a clear plan of action.
Design & Estimation
We coordinate with designers and engineers as needed, develop detailed estimates, and finalize the project scope so there are no surprises.
Construction & Oversight
Our team manages every trade on-site — scheduling, quality checks, inspections, and daily progress tracking. You get regular updates throughout.
Final Walkthrough & Handoff
We walk through every detail with you, address any final items, and make sure you're completely satisfied before we call the project complete.
Why J&M
Dedicated Project Manager
One point of contact from start to finish. You always know who to call.
Vetted Subcontractors
We work with proven tradespeople we trust — no strangers on your job site.
Transparent Pricing
Detailed estimates upfront and clear budget tracking throughout the project.
On-Time Delivery
Realistic timelines, disciplined scheduling, and proactive communication when plans shift.