Based in Milford, PA · serving the PA, NJ and NY tri-state corner
Licensed and Insured · PA HIC #PA225040 · Free Estimates (973) 552-8580
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Retaining Walls in Milford, PA

Retaining Walls · Milford, PA

Block and boulder walls that hold the slope

Ground moves when you cut into a hill. A retaining wall holds that cut and gives you flat, usable ground above or below it. Sawkill Environmental builds block retaining walls and boulder walls with the same excavators we run for foundation and utility digs. We build them on hillside lots across Pike County and the tri-state corner around Milford.

Most walls here sit on glacial till, boulders and shallow rock ledge. That ground gets dug out and replaced with compacted stone before a block goes down. Water is the other half of the job, so washed stone and a perforated pipe go in behind the wall. The pipe runs out to daylight and can tie into the rest of the yard drainage work.

What We Handle

  • Concrete block retaining walls, stepped back and locked together course by course
  • Boulder walls set one stone at a time with an excavator
  • Excavation of the cut through glacial till, boulders and rock ledge
  • Compacted crushed stone base with the first course set below finished grade
  • Washed drainage stone, filter fabric and perforated pipe run to daylight behind the wall
  • Backfill placed in lifts and compacted as the wall goes up
  • Walls for building pads, private roads, access lanes and septic areas
  • One-call tickets filed before we dig: PA One Call (811), New Jersey One Call, Dig Safely New York

Free Retaining Walls Quote

Tell us about the job. We will get right back to you.

Block retaining walls and boulder walls

A concrete block retaining wall gives you a clean, straight face. The blocks lock together course by course and step back into the hill as the wall goes up. Block suits walls along a yard, around a building pad, or anywhere a sloped lot needs a level area.

A boulder wall uses large stone set one piece at a time with an excavator. It fits rough ground and bigger cuts, and it looks right on a wooded Pocono lot. Boulders that come out of a dig on the same site can sometimes go back into the wall.

Which one you use comes down to the look, the height of the cut and the ground under it. Both types get the same base and the same drainage behind them.

Retaining wall installation: base, drainage and backfill

The base carries the whole wall. We dig out topsoil and soft ground along the wall line and cut down to firm material. Crushed stone goes in, gets leveled and compacted, and the first course sits below finished grade.

Behind the wall we place washed drainage stone and a perforated pipe at the bottom of it. Filter fabric keeps soil out of the stone. The pipe runs out to daylight or into a drain line, so groundwater and runoff have somewhere to go. Water trapped behind a wall freezes and swells, and that pressure tips walls forward over a few winters.

Backfill goes in one lift at a time and gets compacted as the wall goes up. Taller walls often call for reinforcement grid built into that backfill, per the wall design. The cap course goes on last. Then the ground above and below the wall gets graded to move water away from it.

Retaining walls around septic areas, roads and building pads

A lot of the walls we build are part of a bigger dig. A cut for a building pad needs a wall to hold the uphill side. A private road or access lane on a slope needs one to hold the bank. On lake-community lots, a wall often makes room for a septic absorption area on sloped ground.

When a wall is part of site prep and grading, it goes in with the rest of the work. The cut, the wall, the backfill and the finish grade stay on one schedule. On a wooded lot, the trees, stumps and ledge come out before we dig the wall line.

We work about 25 miles out from Milford, into Pike and Wayne counties in Pennsylvania. That area also covers Sussex County in New Jersey and Orange and Sullivan counties in New York. Estimates are free, and you can call or text (973) 552-8580.

Hydraulic breaker working ledge at the bottom of a trench on a wooded lot Tracked loader with a bucket smoothing a graded dirt pad on a new residential lot

Ready to get started?

Free, no-obligation estimates across the Pennsylvania, New Jersey and New York tri-state area.

(973) 552-8580
How We Work

How a Job With Sawkill Environmental Runs

From the first call or text to the final grading, here is how it goes.

1

Call or text

Call or text (973) 552-8580 and tell us about the property. New builds, empty lots and failing systems all start here.

2

Free on-site estimate

We come out and look at the property, the soil and where a system can fit. Estimates are free.

3

Testing, design and permit

We dig the soil test pits. The township sewage enforcement officer runs the probes and the percolation tests, and approves the design. In New Jersey and New York, the county health department issues the permit.

4

Tank, lines and absorption area

Once the permit is issued, we set the tank and run the lines to the distribution box. Then we build the absorption area to the approved design. Conventional in-ground beds and elevated sand mounds are both common on lots around here.

5

Inspection, backfill and final grade

The system gets inspected before anything is covered. In Pennsylvania the township sewage enforcement officer does that inspection. Then we backfill, grade the ground back out and clean up the site.

FAQ

Retaining Walls Questions, Answered

Common questions about retaining walls across the Pennsylvania, New Jersey and New York tri-state area. If yours is not here, call or text and ask.

Call (973) 552-8580

Do I need a permit for a retaining wall?
Pennsylvania's building code exempts retaining walls no taller than four feet from a building permit. Height is measured from the lowest grade to the top of the wall. Taller walls, and walls holding a load above them, usually need a permit and an engineered design. Towns in New Jersey and New York set their own rules, so we check with the local office.
Block wall or boulder wall: which should I use?
Block gives a straight, uniform face and suits walls around a building pad or a level yard area. Boulder walls fit rough, wooded ground and bigger cuts, and they hold well on rural lots. We look at the slope on site and tell you which one fits.
Why does a retaining wall need drainage behind it?
Soil behind a wall holds water after rain and snowmelt. That water gets heavy and pushes on the back of the wall. Washed stone and a perforated pipe give it a path out instead.
Can you build a wall around a septic area?
Yes. A wall often makes room for a tank or an absorption area on a sloped lot. The wall has to sit clear of both, so the layout follows the approved septic plan. We do that work alongside new septic system installation on the same site.
What makes a retaining wall fail?
Most failures trace back to the base or the backfill. A wall set on topsoil settles and the courses pull apart. Backfill dumped in without compaction keeps moving. Add water with no way out and frost, and the wall goes over.
How much does a retaining wall cost?
It depends on wall height and length, the wall type, and how hard the cut is to dig. Access for equipment matters too, along with the stone and pipe that go in behind it. We come out, look at the site and give you a free estimate. Call or text (973) 552-8580.
More From Sawkill Environmental

Work That Pairs With Retaining Walls

Dozer grading a site while geotextile fabric is rolled out over the subgrade

Site Prep and Grading

Site prep and grading for new homes, barns and commercial buildings around Milford. We build pads, cut and fill, place stone base and put in private roads and access lanes.

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Perforated drain pipe laid in a trench cut along a house and lawn

Drainage

We install French drains, curtain drains, catch basins and culverts, and regrade wet ground. Exterior stormwater drainage for homes and commercial properties around Milford.

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Crane setting a large underground tank into a sheeted excavation

Excavation

We handle general excavation for homes and commercial sites around Milford: foundation and basement digs, footings, trenches and rock ledge. We run our own excavators and equipment, so the dig, the backfill and the compaction stay with one company.

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Why Choose Sawkill Environmental

Built for Septic and Excavation Work in the Tri-State Corner

Licensed and insured

Sawkill Environmental is licensed and insured, with Pennsylvania Home Improvement Contractor registration PA HIC #PA225040. That number is public, and you can look it up before you hire anyone.

Our own excavators and equipment

We run our own excavators and equipment. That keeps the test pits, the install and the final grading on one schedule.

Based in Milford

We work from Milford out about 25 miles. That covers Pike and Wayne counties in Pennsylvania, Sussex in New Jersey, and Orange and Sullivan in New York.

Free estimates

Estimates are free. We come out, look at the property and tell you what the job needs. Call or text (973) 552-8580.

Free Estimates

Get In Touch With Sawkill Environmental

Tell us about the property and what you need done, and we will come back with a free estimate. You can also call or text (973) 552-8580.

  • (973) 552-8580 · call or text
  • Milford, PA · serving the Pennsylvania, New Jersey and New York tri-state area
  • Free estimates · licensed and insured · PA HIC #PA225040

Get a Free Quote

Tell us about the job. We will get right back to you.