Basement Dig Out in Massachusetts and Rhode Island

Basement Dig out Services in Massachusetts and Rhode Island

Expanding your basement isn’t just about space; it’s about unlocking the full potential of your home. At Drycrete Waterproofing, we provide expert basement dig out services across Massachusetts and Rhode Island to help homeowners gain usable square footage, increase headroom, and prepare their basement for finishing.

Whether you’re looking to create a livable lower level or simply want more storage with better ceiling height, our team ensures the dig out process is safe, code-compliant, and ready for long-term use. We handle every step, from excavation and structural support to drainage and waterproofing, so you can move forward with confidence.

What is a basement dig out?

A basement dig out, also known as basement lowering, is the process of removing soil beneath an existing foundation to increase ceiling height and create more usable space. In many older homes throughout Massachusetts and Rhode Island, basements were never designed for living space. Low ceilings, uneven floors, and poor drainage make them difficult to use or finish.

Dig out services allow homeowners to reclaim that space by safely excavating and lowering the basement floor. The process includes structural support, concrete replacement, and moisture control measures to ensure the newly expanded basement remains dry, stable, and ready for future use.

Why would you want to dig out your basement?

To legally finish the space:

One of the most common reasons homeowners choose to dig out their basement is to gain enough height to legally finish the space. Building codes vary from town to town, but many communities in Massachusetts and Rhode Island require a minimum ceiling height of 7 to 7.5 feet for a basement to qualify as livable space. If your basement falls short, lowering the floor is often the only way to meet those requirements.

Some homeowners may know people who finished their basement without permits or code compliance. While that may seem like a shortcut, it comes with significant risks. Beyond avoiding legal issues, completing the project the right way brings long‑term advantages that affect property value, financing, and insurance.

Property Appraisal

A legally finished basement counts toward your home’s total living area. Because it increases the finished square footage, it is factored directly into the appraisal value and often raises overall market value.

Resale Value

Homebuyers are drawn to homes with finished basements, especially when the work is properly permitted and documented. Compliance with local codes gives buyers confidence and can strengthen demand, which may lead to a higher resale price.

Financing and Insurance

Lenders typically base loan amounts and Home Equity Line of Credit (HELOC) limits on legal living space. An unpermitted basement will not be included in that calculation. Insurance can also be affected. Many homeowner’s insurance policies do not cover damage to spaces that were finished without permits, meaning a single incident could leave a homeowner responsible for all repairs.

Rental Income

In certain municipalities, a legally finished basement may qualify as a rentable accessory unit. When zoning and permitting requirements allow it, this can provide additional income for homeowners.

To deal with overhead obstructions:

Sometimes a basement has enough raw height to meet code, but overhead obstructions make finishing the space difficult. HVAC systems, plumbing lines, or electrical runs often hang low. Once a finished ceiling and new flooring are installed, the remaining height can shrink quickly. Boxed‑in ductwork or piping can make the room feel cramped or even claustrophobic.

A basement dig out creates the extra space needed to work around these obstructions. By lowering the floor, homeowners can maintain comfortable headroom even after enclosing mechanical systems, giving the finished basement a more open and functional feel.

To complete a specific project:

Certain basement renovations simply need more height. Drycrete Waterproofing has helped homeowners prepare basements for golf simulators, home gyms, hydrotherapy pools, and other specialty upgrades that require additional clearance. In many cases, the added space does not require lowering the entire basement. A partial dig out can be completed in the specific area needed for the project. These partial dig outs are often more efficient and require less structural planning than a full excavation, while still providing the height the project demands.

Common Basement Dig out Methods:

There are several different methods that can be used for a basement dig out. The best solution will depend on your situation and how challenging it is to access the space. Here is a quick overview of the most common methods:
Island Method
Clears the basement from the inside to the outside, starting near the center of the basement space, creating a slope to brace the walls and foundation as you go.
Bracing Method
Can be more expensive as it requires struts to be placed to offload weight from the structure. The struts will serve as a framing space as you are digging.
Open Cut Method
Most professionals use a sloping technique with this approach as it is more affordable. The excavation creates slopes to help reinforce the foundation throughout the digging process.
Top Down Method
Most common for high-rises and larger buildings. A load bearing foundation wall is built before digging commences. A concrete floor is then added to the walls so that excavation can occur beneath that surface.
Anchored Method
Requires anchors to be placed around the structure, taking stability from the earth while excavation occurs.

Considering a Basement Dig out?

It’s important to ask yourself why you’re considering a basement dig out. Are you looking to add value to your home? Do you want to give your family space to continue growing? Perhaps you want to add a new feature to your home such as a gym, a workshop, or a home office. This, along with your property’s limitations can help you determine what the best method of expanding your home may be. Your options include:

Can you expand elsewhere?

Above grade square footage is valued at a higher dollar amount than below grade, so many people will choose to expand above grade rather than digging out their basements. However, a variety of factors may make digging out your basement the best option. Some considerations when deciding what project is right for you:

Is the investment worth it?

When deciding if a basement dig out is a good investment, you should consider what below grade, finished square footage is valued at in your area. Consider the full cost of the project including the basement dig out and finishing the space. Understand how much extra square footage you will be gaining and use that to determine what the project would cost you per square foot to complete. Now you can compare that against the market value of that finished square footage.

What is the dig out process?

You’ve decided that a basement dig out is the right project for your home but before you can get an accurate quote or start the planning process you have to assess whether a basement dig out is even possible.

Step 1: Dig test holes

The first thing we need to know when we are considering a basement dig out is what’s underneath your slab. If your basement height is 66 inches is there a reason for that? When they were building the house did they hit water or ledge and have to raise the grade? If the water table is very high or there is ledge close to your slab, then you won’t be able to lower your basement.
If we determine that you have no ledge and your water table is low enough, then we can proceed with the project. While digging the test holes we also take samples of the soil underneath your basement to assess soil composition. This will play a pivotal role in developing the engineering details.

Step 2: Bring in the engineer

After we’ve determined that the project is possible and taken soil samples, an engineer will develop a design based on the depth you want to go, the soil conditions that you have, and your foundation type. At Drycrete Waterproofing, we can refer an engineer or if you have one you’ve been working with then we are happy to coordinate with them.

Step 3: Complete the dig out

From start to finish you can expect a basement dig out to take about 2 to 3 weeks to complete. You can continue to live in the house while the project is underway.
The process:
1. Break up and take out the old basement floor.
2. Dig down the middle of the basement to your desired height leaving about 2 feet of soil around the perimeter to support the foundation.

3. As we dig down around the existing footings and lally columns we put cribbing and temporary lally columns down at the new elevation.

4. We work in sections along the wall, digging out the area where we will be doing the underpinning or benching that day.

5. At the same time, we’ll be working on the new footings and lally columns. Digging out the hole, pouring the footings, and placing the longer lally columns.

6. Once the foundation is properly supported and the footings and lally columns are in place we install French drains and a sump basin, lie down crushed stone, then 14mm vapor barrier, then finally pour a brand new 4 inch slab.

drycrete waterproofing can help with your Basement Dig Out!

Drycrete Waterproofing has been in the business for more than 30 years. We believe in delivering quality and consistent services to every customer that comes our way. If you’ve been considering a basement dig out or have questions about what it involves, let’s chat! Contact us at Drycrete Waterproofing to find out more about your options and get an estimate for your project.

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