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Serving Hudson, NH and surrounding areas. (603) 471-5233
A slab that shifts or cracks after the first winter costs far more to fix than it did to build right the first time. We design and pour every slab for Hudson's deep frost and variable soils.
Slab foundation building in Hudson means excavating and preparing the ground, laying a compacted gravel drainage base, placing reinforcement, and pouring a single thick concrete slab - most residential jobs from first shovel to walkable surface take one to two weeks.
Most Hudson homeowners need a slab for a new detached garage, a home addition, or a workshop. The slab becomes both the structural base and the finished floor, so there is no going back to fix shortcuts taken on day one. Because a slab sits directly on the ground, the sub-base preparation underneath it matters more than almost anything else on the project.
If your project requires more than a slab - such as below-grade walls or a full perimeter base - our foundation installation service covers those scopes as well. For homeowners who also need footings under an adjacent structure, we handle concrete footings as a paired service.
The most direct signal: you have a structure going up and need a permanent, level base to build on. A slab foundation is the standard choice for single-story garages and additions in Hudson where a basement is not required. This is where the conversation starts.
Cracks wider than a quarter inch, cracks where one side sits higher than the other, or cracks growing longer over time all point to movement in the slab. In Hudson, this kind of movement is often connected to frost heave - the ground freezing and expanding under the concrete each winter - and warrants a professional look.
Hudson gets significant snowfall each winter. When that snow melts in spring, water has to go somewhere. If you see water collecting around the base of a structure, or moisture staining on a concrete floor inside, the drainage under or around the slab may not be doing its job.
Many Hudson homeowners have a detached garage with a gravel floor and want something permanent, level, and easy to clean. If you are tired of working on uneven ground or want to use the space for more than storage, a poured concrete slab is the right next step.
We build new residential slab foundations for garages, home additions, workshops, and accessory structures of all sizes. Every slab includes a properly compacted gravel sub-base and steel reinforcement - rebar or welded wire mesh - placed before the pour so the concrete has something to hold it together if the ground shifts. We also handle permits through the Hudson Building Department so you do not have to navigate that process on your own.
For projects involving a full basement or perimeter walls, our foundation installation service covers those more complex scopes. For homeowners adding a garage or shed who also need isolated footings under specific load points, we pair slab work with standalone concrete footings. The right scope depends on what you are building and what your lot requires - we can help you sort that out during the estimate visit.
The most common request in Hudson - a flat, reinforced slab sized for single or two-car garages, finished with a broom texture for grip.
Sized and reinforced to match the structural loads of the addition, with thickened edges at the perimeter to carry wall loads.
Practical for homeowners adding detached workshops, garden sheds, or outbuildings who want a permanent floor instead of gravel or wood.
For existing structures where the old slab has heaved, cracked badly, or deteriorated past the point of repair - the old slab comes out and a properly designed new one goes in.
Hudson sits in Hillsborough County, where the ground can freeze to a depth of around 48 inches in a hard winter. That frost depth is one of the deepest in the continental United States, and it is the main reason slabs built here without proper drainage and sub-base preparation fail within a few years. Frozen ground expands and can push a slab upward if the foundation is not built to account for it. Homeowners in Merrimack face the same frost conditions and understand exactly what we mean when we talk about why the details under the slab matter as much as the pour itself.
Hudson also grew quickly during the 1970s and 1980s, and many homes from that era are now at the age where additions and garage upgrades make financial sense. At the same time, new construction continues on the town's edges. Whether you are adding to a 1980s Colonial near the commercial corridor or building a detached garage on a newer lot, the soil conditions here - a mix of glacially deposited sand, gravel, and occasional ledge rock - vary enough from one street to the next that a site visit before any quote is not optional. Nashua neighbors deal with the same mix of aging housing stock and glacial soils, and we serve those projects as well.
The American Concrete Institute publishes standards for residential slab design that reputable contractors follow. Asking your contractor which mix design and reinforcement specification they use is a reasonable question - a professional will have a clear answer.
We ask a few quick questions about what you are building and what the site looks like. You do not need to have all the answers - we will guide you through what information we need before the visit.
We visit your property, assess soil conditions, measure the area, and look at site access before giving you a written estimate. A quote without a site visit is a guess - we do not operate that way.
Once you agree to move forward, we apply for the Hudson Building Department permit on your behalf. Permit approval typically takes a few days to a couple of weeks. Your start date gets confirmed once the permit is in hand.
The crew excavates, compacts the gravel base, places reinforcement, and pours the concrete - usually in a single day. After the pour, we walk you through curing expectations and the inspection schedule so you know exactly what comes next.
Written estimate after a site visit. Permit handled. No surprises on price.
(603) 471-5233Hudson's ground freezes to around 48 inches in hard winters. We size every footing edge and drainage layer to stay below that depth, so your slab does not heave when the ground expands. Contractors who do not account for this create expensive problems that show up within a few winters.
We do not quote over the phone. We visit your lot, look at the soil, and factor in site access before putting a number in writing. The price you agree to is the price you pay unless you ask us to change the scope - no surprise line items after work starts.
We apply for the Hudson Building Department permit, coordinate inspections, and hand you the final approval documentation when the job is done. You should not have to visit the permit office or figure out the inspection schedule yourself.
We follow American Concrete Institute guidelines for residential slab design - the right mix, the right reinforcement, and proper curing protection. These are not optional extras. They are what separates a slab that lasts from one that cracks and shifts.{" "}
Hudson Concrete has been doing foundation work in this area since 10 years ago, and every slab we pour is backed by a commitment to show up on the date we say and leave your property looking like a finished project. That combination of local knowledge and straight dealing is why customers refer us to their neighbors.
Full basement and perimeter foundation work for new homes and major additions in Hudson.
Learn MoreIsolated and continuous footings dug below the frost line for garages, sheds, and structural additions.
Learn MoreCall us or submit a request today and we will get a site visit on the calendar before the season books up.