
Concord Concrete Company is a concrete contractor serving Portsmouth, NH with pool deck installation, driveway building, patio construction, and foundation work - a crew experienced with both historic downtown properties and newer Seacoast neighborhoods.
We respond within one business day, handle permits with the city, and clean up completely when the job is done.

Portsmouth homeowners with outdoor pools deal with a climate that combines hard winters, humid summers, and year-round salt air exposure - all of which degrade pool deck surfaces faster than in inland areas. Our concrete pool decks are poured with surface treatments and drainage designed for coastal New Hampshire conditions, not just for appearance.
Portsmouth properties range from tight South End lots with narrow driveway access to larger suburban parcels near Greenland Road where full driveway replacements are common. Portsmouth averages 50 to 60 inches of snow per year, and concrete driveways poured to the correct thickness handle freeze-thaw stress better than asphalt or under-spec poured surfaces.
Outdoor living space is a real priority for Portsmouth homeowners, and concrete patios on coastal properties need to handle both winter frost and summer humidity without cracking or staining. We design drainage into every patio pour to keep surface water moving away from the home's foundation - a particular concern on older Portsmouth properties with limited-clearance lots.
Entry steps on Portsmouth's older historic homes - many of which were built in the 1800s or earlier - crack and separate from the foundation after decades of frost cycling. Replacement steps with properly set footings below the frost line stay in place through New Hampshire winters without pulling away or heaving, which older surface-mounted steps routinely do.
Low-lying areas in Portsmouth near the Piscataqua River and the South End waterfront deal with saturated soil during spring snowmelt and heavy rain. Concrete retaining walls on these properties manage grade and hold soil in place through the conditions that block walls and railroad-tie installations often cannot handle long-term.
Portsmouth has a significant stock of homes built before 1940, many with original foundations that are past their practical life. Foundation replacement on historic Portsmouth properties requires careful coordination with the city's permit process and, in some cases, review by the Historic District Commission for homes in regulated areas near the downtown core.
Portsmouth is one of the oldest cities in the United States, and that age is visible in its housing stock. A large portion of homes in the city were built before 1940, many date to the 1700s and 1800s, and neighborhoods like the South End and the blocks near Strawbery Banke are among the most historically intact residential areas in New England. Working on concrete around these properties requires more care than new construction - grades have shifted over decades, drainage patterns are set by surrounding structures, and some exterior changes in historic districts are subject to review before permits are issued. Portsmouth also has a notably high share of high-value properties: median home values in the city regularly exceed $500,000, which means homeowners have real money at stake and expect work that holds up.
The coastal environment adds a challenge that most inland New Hampshire properties do not face. Salt air from the ocean and the Piscataqua River accelerates deterioration of concrete sealants, metal reinforcement, and exterior hardware faster than in areas like Concord or Keene. Portsmouth averages 50 to 60 inches of snow per year, and the freeze-thaw cycles through a New Hampshire winter put stress on every outdoor concrete surface. On properties near the waterfront, spring flooding and high water tables during snowmelt season compound the drainage challenges that affect how long any concrete installation lasts. A contractor who does not account for these variables at the planning stage will leave you with results that fail sooner than they should.
Our crew works throughout Portsmouth regularly, and we understand the range of property types and conditions that make this city different from the rest of our service area. Tight South End lots with minimal equipment access, pre-Civil War homes where every excavation needs careful planning, newer neighborhoods out toward the Route 33 corridor with larger lots and different drainage profiles - Portsmouth has all of these within a few miles of each other. For projects requiring permits, we work with the Portsmouth Planning Department and flag any Historic District Commission review requirements before we start, so there are no surprises mid-project.
Portsmouth sits along the Piscataqua River at the New Hampshire and Maine border, connected to Kittery via the Memorial Bridge. Market Square at the center of downtown is one of the best-known public spaces in the state, surrounded by 18th- and 19th-century commercial buildings. The Strawbery Banke Museum in the South End preserves one of the most complete collections of historic neighborhood buildings in New England and is a reference point most Portsmouth residents know well. Whether your home is steps from Market Square or out in a newer neighborhood near the traffic circle, we work across the full city.
Portsmouth is also a hub for the broader Seacoast region. We regularly serve Rochester to the northwest and other Seacoast-area communities as part of our ongoing work in this part of the state.
Contact us by phone or through the estimate form with a short description of your project. We reply within one business day - no automated phone trees, no long waits.
We visit your Portsmouth property to assess the ground conditions, measure the area, and look at drainage and access. You get a written estimate spelling out exactly what is included - particularly relevant for Portsmouth's varied lot sizes and historic properties.
For projects requiring Portsmouth permits, we handle the application with the city's Planning Department and flag any Historic District Commission review if it applies. We contact Dig Safe before any excavation, as required by New Hampshire law.
The crew finishes the work, passes any required inspection, and cleans the site before leaving. We walk you through the finished surface and give you guidance on curing time and care - important on coastal properties where salt air and moisture exposure are ongoing.
Serving homeowners and property owners throughout Portsmouth and the New Hampshire Seacoast. We respond within one business day.
(603) 802-8228Portsmouth is a small city of about 22,000 people on the New Hampshire Seacoast, founded in 1623 and one of the oldest continuously inhabited European settlements in the country. Its historic downtown, centered on Market Square, is compact and walkable, with restaurants, shops, and civic buildings that draw visitors from across the region. Residential neighborhoods spread out in every direction from the downtown core: the South End near Strawbery Banke has some of the oldest and most architecturally significant homes in New England, while the Islington Creek area and neighborhoods closer to the traffic circle on Route 1 have a denser mix of colonial, Federal, and Victorian properties on smaller lots. The outer edges of the city, toward Greenland Road and the Route 33 corridor, include newer subdivisions built from the postwar era through the early 2000s. For background on the city's history and neighborhoods, the Wikipedia article on Portsmouth, New Hampshire provides a solid overview.
Portsmouth's economy is anchored by the Portsmouth Naval Shipyard (located just across the river in Kittery, Maine), Liberty Mutual, and a large healthcare and hospitality sector. The city attracts long-term homeowners and professionals who invest in their properties, which makes quality concrete work a recurring need - pool decks, driveways, patios, and foundations on high-value properties all require a contractor who can deliver results that last. We also serve nearby communities that share Portsmouth's Seacoast climate and older housing stock, including Dover, NH to the northwest and Rochester, NH further inland.
Get a durable, long-lasting concrete driveway built to withstand New Hampshire winters.
Learn MoreTransform your backyard with a custom concrete patio built for outdoor living.
Learn MoreAdd beauty and texture to any surface with professionally stamped concrete.
Learn MoreSafe, smooth concrete sidewalks installed to local code and built to last.
Learn MoreUpgrade your garage with a strong, smooth concrete floor that resists stains.
Learn MoreEnhance any space with decorative concrete finishes tailored to your style.
Learn MoreSolid concrete retaining walls that control erosion and define your landscape.
Learn MoreProfessional concrete floor installation for residential and commercial spaces.
Learn MoreBeautiful, slip-resistant concrete pool decks built for safety and curb appeal.
Learn MoreCustom concrete steps crafted for safety, durability, and great first impressions.
Learn MoreStrong slab foundations poured precisely to support your home or building.
Learn MoreExpert foundation installation that gives your structure a reliable base.
Learn MoreDurable commercial parking lots poured to handle heavy traffic year-round.
Learn MorePrecisely formed concrete footings that anchor structures firmly in the ground.
Learn MoreRestore and raise your foundation to correct settling and structural issues.
Learn MorePrecise concrete cutting services for repairs, modifications, and new installations.
Learn MoreCall us or submit an estimate request - we serve Portsmouth and the surrounding Seacoast region, and we get back to you within one business day.