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Serving Somerville, MA and surrounding areas. (617) 634-5990
Your foundation carries everything above it. If you are building new, replacing an aging stone or brick base, or reinforcing an older Somerville home, we install concrete foundations with frost-depth footings, proper waterproofing, and full city permit management.
Foundation installation in Somerville involves excavating to below the 48-inch frost line, pouring concrete footings, forming and pouring foundation walls, applying exterior waterproofing, installing drainage material around the perimeter, and backfilling once the concrete has cured — most residential projects run four to eight weeks from permit approval to completion, with framing typically beginning after the concrete reaches working strength.
Somerville presents specific challenges that contractors from outside the area often underestimate. More than half of the city's housing was built before 1940, meaning many properties have original stone rubble or early brick foundations that were never designed to last indefinitely. Whether you are building new, replacing an aging foundation under an occupied structure, or reinforcing walls that are showing signs of movement, the approach needs to account for Somerville's clay soil, tight lot conditions, and active permitting requirements. Getting any of those wrong creates problems that show up years later.
For projects where a flat concrete base without basement walls is the right solution, our concrete parking lot building and slab services can be a simpler, faster path for detached structures and surface-level applications.
Cracks that spread diagonally from the corners of door frames or window openings are often a sign the foundation beneath that part of the house has shifted. In Somerville's older homes, this kind of movement is common as original stone or brick foundations age and lose stability. A crack wide enough to fit a quarter into is worth having a contractor look at before the movement continues.
When a foundation moves, the frame above it moves with it, and doors and windows are usually the first place you notice. If a door that swung freely now drags on the floor, or a window that opened easily now jams, the cause may be below ground rather than in the door itself. This is especially common in Somerville homes after a wet spring, when clay soil swells and shifts.
A wet basement after heavy rain is often a sign the foundation has cracks or gaps letting groundwater in. On a dense Somerville lot, neighboring properties and impervious surfaces direct a lot of runoff toward your foundation walls, so even a small crack can let in significant water during a storm. Repeated basement flooding is a sign the foundation needs evaluation, not just a sump pump.
Stand in your basement and look at the walls straight on. They should be flat and vertical. If a wall curves inward or appears to lean, the soil outside is pushing against it, and that pressure increases over time if it is not addressed. This type of movement is more common in Somerville's older homes where original foundations were not engineered to handle saturated clay soil.
We install new concrete foundations for residential properties in Somerville and the surrounding communities, including full basement foundations for new construction and additions, replacement foundations for older homes with failing stone or brick bases, and reinforced perimeter walls for properties experiencing soil pressure and water infiltration. Every project starts with a thorough site assessment, because the scope of foundation work on an older Somerville lot can change once excavation reveals what is actually in the ground.
Waterproofing is part of every installation, not an optional add-on. We apply an exterior waterproofing membrane and install drainage material around the foundation perimeter before backfilling. Skipping this step is one of the most common reasons homeowners end up with wet basements after a foundation replacement, and it is the kind of shortcut that does not become visible until the next rainy season. For projects that connect to existing structures or involve lifting a home to replace the foundation beneath it, our foundation raising service covers the lifting and support work that precedes replacement.
All permit applications and required inspections are handled through Somerville's Inspectional Services Department. We do not suggest skipping permits, and we do not hand you a job that is not fully inspected and closed out on record.
Suits new construction and major additions where a full below-grade level is needed for living space or mechanical systems.
Suits Somerville properties with aging stone, brick, or early poured-concrete foundations that are failing or no longer meet code.
Suits homes where basement walls are cracking, bowing, or leaning inward due to soil pressure or water infiltration.
Suits homeowners adding a room or second structure that needs a new foundation section tied properly to the existing one.
Somerville has one of the oldest and densest urban housing stocks in Massachusetts. A large share of the city's homes were built between the 1870s and the 1930s on foundations made of fieldstone, brick, or early poured concrete that predate modern building codes and engineering standards. These original foundations were not designed with the lateral soil pressure of Somerville's clay-heavy glacial deposits in mind, and many of them are now at or past the end of their useful life. That is a very different starting point than a suburban lot with undisturbed soil and clear equipment access.
Contractors working in Somerville also have to navigate tight lot access, particularly in neighborhoods like Davis Square and the Cambridge border where homes sit close together and street access for equipment is limited. Excavation on a dense residential block requires planning for soil removal, neighbor protection, and street staging before the first shovel goes in. These logistics add cost, but they are not optional on a Somerville lot.
Some parts of Somerville also have areas of historic fill, land that was raised or leveled in the 19th century with material that is less stable than undisturbed soil. Properties in East Somerville and along the Inner Belt corridor are among those most likely to have variable soil conditions that affect foundation design. We assess your specific site before finalizing the scope, because what is in the ground under your property is something that has to be evaluated in person, not assumed.
We visit your property to assess your lot conditions, the existing foundation if one is present, and your soil type. Anyone who quotes a foundation job over the phone without a site visit is guessing. You will hear back within one business day of your inquiry to schedule the visit, and the estimate will be written and itemized.
We apply for the building permit through Somerville's Inspectional Services Department before any excavation begins. Plan for the permit to take one to two weeks for straightforward residential projects, sometimes longer. Work cannot legally start until the permit is issued, so this step cannot be rushed or bypassed.
The crew excavates to below the frost line, sets up the footing forms, and pours the concrete footings. The city inspector will verify footing depth and placement before work continues. This phase typically takes one to three days depending on the size of the project and the complexity of the lot.
Foundation walls are formed and poured in stages, with inspections at key points. After the concrete cures, the exterior walls are waterproofed, drainage material is placed around the perimeter, and the excavation is backfilled. The city inspector makes a final visit to close out the permit, and we give you that documentation at the end of the job.
We visit your property before we give you a number. No phone estimates on foundation work. You will hear back within one business day.
(617) 634-5990Massachusetts requires footings below the 48-inch frost line. We build to that standard on every foundation we install in Somerville, which is why our foundations do not heave or crack after winter. Contractors who underbid often cut depth first.
We handle the full permit process with Somerville's Inspectional Services Department and hand you a closed permit at the end. Since 2022 we have managed permitted foundation projects across Somerville, Cambridge, and Medford without a failed final inspection.
Exterior waterproofing and perimeter drainage are part of every foundation installation we complete, not an add-on you have to ask for. The Portland Cement Association recommends exterior waterproofing as a baseline standard for foundations in wet-climate zones.
We have worked on pre-1900 stone rubble foundations, early 20th-century brick bases, and modern poured-concrete walls throughout the city. That range of experience means we know what to expect during excavation on older Somerville lots and how to plan for scope that can change once you are in the ground.
Foundation work is the most consequential concrete job on any property, and Somerville's conditions make it more demanding than most. We approach every project with a site assessment, a written scope, and a commitment to doing the prep work that prevents problems later, because a foundation built to last is the only outcome worth pursuing.
Properly graded and reinforced concrete parking surfaces for commercial and multi-family properties throughout Somerville.
Learn moreLifting and underpinning existing Somerville foundations to add height, improve drainage, or meet current code requirements.
Learn moreSpring booking slots fill fast, and the best contractors in Somerville are booked weeks in advance. Call now or submit a request to hold your place in the schedule before the ground thaws.