Local Roots. Quality Work. Family Values.
Excavation & Custom Rock Work in Sanford, Maine
Family-owned. Septic systems, foundations, driveways, rock work, plowing and ponds for homeowners and businesses across southern Maine.
Why J. Mapes
Our name is on every job
We believe quality work takes time, attention to detail, and the right approach. From preparing a driveway to completing foundation and septic work or creating custom rock work, we focus on doing the job properly- not simply getting it done as quickly as possible.
Hard Work
We believe in showing up, putting in the work, and seeing every project through to the finish.
Quality
We take pride in our workmanship and never want to put our name on a job we aren't proud of.
Honesty & Integrity
We believe in straightforward communication, fair service, and doing what we say we are going to do.
Reliability
Our customers count on us to show up, communicate, and get the job done efficiently and professionally.
Family & Community
We're a family owned company, and we believe in supporting the communities we live and work in. Our customers aren't just jobs- they're our neighbors.
Safety & Respect
We respect our customers' property, our employees, and the work we do. Safety and professionalism come first on every project.
What we do
Six services, done properly
The full list, in the client's own order of pride: dirt work first, finish work close behind.
Septic Systems
Complete septic installs and replacements: tanks, leach fields, and the excavation that makes them last.
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Foundation Excavation
Dig-outs, frost walls, drainage stone, and backfill for new builds and additions.
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Gravel Driveways
New gravel driveways, rebuilds, and regrading with real base work and drainage.
Learn moreCustom Rock Work
Granite steps, fieldstone retaining walls, boulder walls, and stone patios built to stay put.
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Snow Plowing
Commercial and residential plowing through the winter, on a route that shows up.
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Custom Ponds
Recreational, farm, and fire ponds: dug, shaped, and built to hold water.
Learn moreThe work
Real jobs, real ground
Every photo on this site is our own work on real southern Maine properties. No stock photos, anywhere.
How we work
From first call to final grade
Six steps, the same on every job. The line fills as you go.
Initial Consultation
Tell us what you're planning. We'll talk through the property, the goal, and what it takes to get there.
Site Visit
We come look at the actual ground: access, slope, soils, drainage, and anything that changes the plan.
Quote Submission
You get a clear written quote for the work discussed. No vague allowances.
Approval
Take your time, ask questions, and give us the go-ahead when you're ready.
Scheduling
We schedule the work and tell you when the equipment arrives. If weather moves the date, you hear it from us first.
Project Completion
We finish the job to a standard we're proud to stand behind, and leave the site clean and graded.
Project in depth
A hillside rebuilt in granite and fieldstone
A steep, unusable slope behind this southern Maine home became a granite staircase, tiered fieldstone retaining walls, and a natural flagstone terrace. Every stone was machine-set into a compacted base with drainage behind the walls, so the whole structure is built for Maine winters, not just for the photo.
This is the kind of job our custom rock work is about: ground that fought the owner for years, turned into the best part of the property.
Love 💘 my new retaining wall. Janzen did an amazing job with the wall. Any damage to lawn was taken care of. Never know there was heavy equipment there. Wonderful to work with. Thank you! See you for snowplowing....and my spring project.
Where we work
Sanford and the towns around it
We measured real road time from our Sanford base to every town we serve. These eight are our core area.
Sanford
Home base
Alfred
about 10 min away
Waterboro
about 17 min away
Shapleigh
about 20 min away
Lebanon
about 20 min away
Acton
about 21 min away
North Berwick
about 20 min away
Lyman
about 20 min away
We also take on work across the rest of York County, including Dayton, Biddeford, Kennebunk, Saco, Wells, South Berwick, Berwick, Hollis, Old Orchard Beach, Arundel, Kennebunkport, Buxton, Ogunquit, Newfield, Limerick and York.
Questions
Straight answers
What does a new septic system involve?
Three parties, in order. A licensed site evaluator, a private professional you hire, examines your soil with test pits and produces the system design on Maine's HHE-200 form. Your town's plumbing inspector issues the permit. Then we do the construction: excavate for the tank and leach field, install the system exactly to that design, and regrade and restore the lawn. Done right, you shouldn't be able to tell heavy equipment was ever there.
When is the best time of year for excavation work in Maine?
Late spring through late fall is the main season, once the ground has drained from mud season. Frozen ground slows digging, and saturated April ground rut easily. That said, some jobs are actually better in cold weather, and winter is exactly when we plow. The honest answer for your project comes from the site visit.
Do you design septic systems too?
No, and in Maine nobody should be selling you both. Designs come from a licensed site evaluator, who digs test pits, reads the soil profile (Maine uses soil analysis, not the old percolation test), and draws the system for your lot on an HHE-200 form. The town's plumbing inspector permits it, and we build it in the ground exactly as drawn. If you don't have an evaluator yet, we can point you in the right direction at the consultation.
How long does a gravel driveway take to build?
It depends on length, ground conditions, and drainage work, which is why we quote from a site visit rather than over the phone. What we can promise is a clear timeline in the quote and a heads-up before equipment arrives.
Do you plow residential driveways or just commercial lots?
Both. We run seasonal residential routes and plow commercial lots and entrances through the winter, with sanding when conditions call for it.
How far from Sanford do you travel?
Our regular service area covers towns within about 40 minutes of Sanford, which reaches most of York County. If you're near the edge of that area, ask: it costs nothing, and we would rather tell you honestly than have you guess.
Free estimate
Tell us about your project
Fill this out and we'll get back to you to set up a site visit. Or skip the form and call (207) 850-0241.