Retaining Wall Contractors in Massachusetts

A retaining wall holds back soil, water and gravity — all day, every day, for decades. Built right, you forget it is there. Built wrong, it leans, bulges and comes down, usually taking part of your yard with it. Baystate Masonry and Waterproofing designs, builds and repairs concrete, block and stone retaining walls for homeowners and property managers across Massachusetts. Licensed, insured, and local to Woburn.

Our Retaining Wall Services

  • New retaining wall installation
  • Concrete retaining walls — poured and block
  • Stone and natural boulder retaining walls
  • Segmental block retaining walls
  • Retaining wall repair and rebuilding
  • Full retaining wall replacement
  • Leaning and bulging wall correction
  • Drainage systems and weep hole installation
  • Terraced and tiered walls for sloped yards
  • Retaining wall landscaping and finish work
  • Garden walls, seat walls and planters

Concrete Retaining Walls

Concrete is the workhorse. It handles the heaviest loads, takes the least maintenance, and holds up to Massachusetts freeze-thaw better than almost anything when it is reinforced properly.

We build two kinds:

  • Poured concrete walls — one solid unit with steel reinforcement. Best for tall walls, heavy loads and driveway edges.
  • Concrete block walls — faster to install, easier to repair, and available in dozens of textures and colours.

Every concrete retaining wall we build gets a compacted gravel base, footings below the frost line, and a drainage layer behind the wall. Skip any one of those three and the wall fails — it is only a question of when.

Retaining Wall Blocks and Segmental Walls

Segmental retaining wall blocks are the most popular choice for residential yards in Massachusetts. They interlock, they flex slightly with ground movement, and they look good without a mason’s finish work.

  • Interlocking retaining wall blocks
  • Concrete retaining wall blocks in multiple colours and textures
  • Curved and stepped wall designs
  • Terraced block walls for steep slopes
  • Cap stones and finished edges


Thinking about a DIY block wall? Anything under about 3 feet with good drainage is a reasonable weekend project. Above that, or anywhere water collects, you need engineered footings and reinforcement. Massachusetts towns generally require a permit and engineering above 4 feet. Call us before you buy the blocks — a 10-minute conversation is cheaper than a rebuild.

Stone Retaining Walls

Nothing beats natural stone for looks, and a properly laid stone retaining wall can last a century.

  • New England fieldstone walls
  • Granite block walls
  • Dry-stacked stone walls
  • Mortared stone walls
  • Boulder and armour stone walls
  • Stone veneer over a structural concrete core


We match the stone to the house, the walkway and any existing masonry so the wall belongs to the property instead of sitting on it.

Retaining Wall Repair and Replacement

A failing wall rarely needs a full teardown. We assess the structure first, then give you the honest option.

  • Our retaining wall repair work covers:
  • Straightening leaning and bulging walls
  • Rebuilding collapsed or blown-out sections
  • Repointing crumbling mortar joints
  • Resetting shifted blocks and stones
  • Replacing failed or missing drainage
  • Adding weep holes and drain tile
  • Repairing cracks and spalling concrete
  • Re-capping and re-finishing wall tops

When replacement is the better value: if the footing has failed, the wall is leaning more than a few inches, or more than a third of it has moved, patching just buys you a season or two. We will tell you that up front.

Why Most Retaining Walls Fail — Drainage

Nine failed walls out of ten come down to water, not weight.

Soil holding water gets heavier and pushes harder. In Massachusetts it then freezes, expands and pushes harder still. A wall with no drainage behind it is fighting a load it was never designed to carry.

  • Every wall we build includes:
  • Free-draining crushed stone backfill
  • Perforated drain pipe at the base
  • Filter fabric to keep soil out of the drainage layer
  • Weep holes through the wall face
  • Proper grading to move surface water away

Because we also do waterproofing and foundation repair, we look at how water moves across your whole property — not just the six feet behind the wall.

Retaining Wall Landscaping

A retaining wall does structural work, but it also reshapes the yard. We build walls that create usable space:

  • Terraced garden beds on sloped lots
  • Level lawn areas carved out of a hillside
  • Built-in seat walls around patios
  • Raised planters and garden borders
  • Steps and walkways integrated into the wall
  • Lighting-ready caps and niches

Signs Your Retaining Wall Is Failing

  • The wall leans forward or bulges in the middle
  • Cracks running vertically or in a stair-step pattern
  • Blocks or stones pushed out of line
  • Soil, mulch or water escaping through the face
  • The ground behind the wall is sinking
  • Water pooling at the base after rain
  • The cap stones have separated or shifted

Any of these means the wall is losing the fight. Early repair costs a fraction of a rebuild.

Why Choose Baystate Masonry and Waterproofing

  • Licensed Massachusetts contractor — Lic# 219655
  • Fully insured
  • Local to Woburn, MA
  • Masonry, waterproofing and foundation work under one roof
  • Drainage designed into every wall, not added as an upsell
  • Free written estimates

Frequently Asked Questions

How long does a retaining wall last?

A properly built block or concrete wall lasts 40 to 50 years. Natural stone walls can last a century. Drainage is the deciding factor — walls without it often fail within 10 years.

Most MA towns require a permit for walls over 4 feet, and many require an engineer’s stamp at that height. Requirements vary by town. We confirm the rules for your address and handle the permit.

If the footing is sound and the lean is slight, we can often straighten and re-drain the wall. If the base has failed or the wall has moved several inches, rebuilding is the better value. We tell you which after the site visit.

Concrete block is the best all-round value for most residential walls. Poured concrete is strongest for tall or heavily loaded walls. Natural stone costs more but looks best and lasts longest. All three work well here if drainage is done properly.

Block walls are commonly built to 3 or 4 feet without engineering. Above that, walls need engineered design, reinforcement or terracing. Tall slopes are often better handled as two or three stepped walls than one high one.
A standard residential wall is usually 3 to 5 days. Larger walls, stone work or projects needing heavy excavation can run 1 to 2 weeks.

Leaning wall? Sloped yard you cannot use?

Get a free on-site assessment and a written price. Call or text (617) 212-0405—or request your estimate online.