Masonry Contractor in Londonderry, NH - Finding What Frost and Water Started
Capstone Manchester Concrete and Masonry is a masonry contractor working in Londonderry, NH. We repair foundations, chimneys and brick, repoint worn joints and build walls, walkways and paver driveways, starting with why the old work failed.
- Licensed and fully insured.
- Free on-site estimates.
- We respond within 1 business day.
Londonderry homes, from old farmhouses to newer subdivisions
Londonderry sits just south of Manchester, next door to Derry and Windham, and as a masonry contractor based in Manchester, NH, we work here regularly. It's a mix of older farmhouses and capes, orchards and open land, and newer neighborhoods of colonials on poured or block foundations, with plenty of brick chimneys, fieldstone walls and front steps in between.
Most calls here are about something the homeowner can see, like a basement wall that weeps in spring, a chimney losing mortar or steps pulling away from the house. On many of these properties, what's underneath decides the job, so before we touch the part you can see, I want to know how the ground drains and what the masonry is sitting on.
Masonry work we do for Londonderry homes
When a basement wall cracks or weeps every spring, I find what's pushing the water in before we repair it, so the cause gets fixed too.
Ice and snow are hard on chimneys here, and once the concrete cap on top cracks, water soaks the brick below. We rebuild what's failed.
On older brick fronts with worn joints, we fill them with mortar tinted to the brick and run a thin, crisp line, so the wall reads sharp again.
A cracked, flaking or loose brick usually means water or movement behind it. We work out which, then cut out the bad bricks and set close matches.
Pavers on a solid base ride out frost better than one big slab, and a heaved paver lifts out and resets. We dig and pack that base first.
On sloped yards, a retaining wall holds the slope back. We build ours with drainage behind it, because trapped water is what tips most walls over.
For older brick and stone, like farmhouses and outbuildings here, we use mortar softer than the brick, so if anything gives, it's the joint.
A masonry fireplace is heavy, so before we lay a brick, I check that the footing under it can carry the weight. Then we build the firebox and chimney.
Veneer puts a stone face on a plain foundation or chimney. We leave a drainage gap behind it, because trapped water is what pops veneer loose in winter.
Block walls suit garages, sheds and walls that carry weight. We set them on a footing below the frost line, where the ground doesn't freeze and heave.
For an addition or a garage, we lay the block foundation on a proper footing and coat the outside before the dirt goes back.
An outdoor kitchen sits through every freeze and thaw, so we build the grill base and counters on a solid footing, using mortar made for outdoor work.
A walk that heaves or puddles is usually sitting on a thin base. We dig it out, pack a proper base and slope it so water runs off.
A brick garden or entry wall is only as good as what's under it, so we start with a deep footing and pick brick that suits the house.
Fieldstone walls and stone steps turn up on a lot of properties here. We reset fallen sections and lay new stone so it sits tight and sheds water.
If a key scrapes mortar out of your joints, it's worn. We refill just the joints that need it, which is often less than people fear.
Get a written masonry estimate for your Londonderry home
We reply within one business day to set a time. I come out, look at the problem with you and put what I'd fix and why in writing, free and with no obligation.
(603) 314-0526- Based in
- Manchester, NH 03104
- Hours
- Mon–Sun: 8 AM–9 PM
What we know from working in Londonderry
Building permits here come from the Town of Londonderry's building and zoning office, and when a job needs one, nothing starts until it's issued, so that wait becomes part of your schedule. We check with that office before any job starts and take care of the permit paperwork ourselves when there is some, and we're licensed and fully insured.
What moves the price and the timing is mostly what's behind the problem, how much has to come apart to fix it and whether a permit is involved, and cold weather matters too, because fresh mortar shouldn't go onto frozen brick. The written estimate spells out what I'd fix and why. Londonderry is a short drive down I-93 from us in Manchester, and the jobs here look a lot like the ones we see in Raymond and the other cities around us.
Water, frost and age on Londonderry houses
Water and frost do most of the damage we see here. Londonderry's own hazard planning counts rapid spring snowmelt among its flood risks, and when that melt runs against a foundation or soaks into chimney joints and then freezes again overnight, it pries cracks open a little more each year. Before we patch anything, I check where the water comes from, like the grading, the downspouts or a cracked chimney cap, because a repair that leaves the water path alone usually cracks again.
Age matters too. Older brick and stone was often laid with soft lime mortar that needs a matching repair, while newer poured foundations get thin shrinkage cracks that usually aren't structural, and I'll tell you when that's all it is.
How a masonry job runs in Londonderry
Here's how a job goes once you reach out, from the first call to walking the finished work with me, and where the permit step fits in.
Call or send a message
Call (603) 314-0526 any day from 8 AM to 9 PM or use the form, and tell us what you're seeing, like a crack, a leak or loose brick. We get back to you to set a time for me to come out.
I find what's causing it
I walk the problem with you, check what's behind it, like drainage, the footing or the joints, and write up what I'd fix and why. If a smaller repair will do, that's what I'll tell you.
Permits first, then the work
Once you say go, we take care of the permit if the job needs one, and the work starts after it's issued. I'm on the crew that does it, so the person who found the cause is there fixing it.
We walk the finished job
When we're done, I walk the work with you and show you what we did about the cause, not just the part you can see. The job is backed by our satisfaction guarantee.
Questions about masonry work in Londonderry
Do I need a permit for masonry work in Londonderry, NH?
Some masonry work does, because Londonderry requires building permits for residential construction including additions, renovations, porches and garages, so a foundation for an addition or a rebuilt porch falls under it. The list doesn't name repairs like repointing or a chimney rebuild on their own, so it's worth asking before any work starts, and on our jobs we do the asking.
How do I apply for a building permit in Londonderry, NH?
Not through Londonderry's online permit portal, which handles electrical, plumbing, gas and mechanical, wood and pellet stove, septic, well and sign permits but not building permits. Each residential building permit goes in with a $25 application fee, and when we're doing the work, we handle that paperwork for you.
Which building code applies to a masonry project in Londonderry right now?
Until the end of 2026, permit requests in New Hampshire can use either the 2021 or the 2024 codes, and starting January 1, 2027, all of them have to follow the 2024 codes with the state's amendments. Londonderry's building page lists the 2021 codes as the ones in effect, so for a job permitted around the turn of the year, we confirm with the building office which edition they'll review it under.
Does a shed need a permit in Londonderry, NH?
A shed under 200 square feet doesn't need a permit in Londonderry, and a larger one does. A shed of 200 square feet or more also has to sit on footings 48 inches down, the frost depth here, and every shed, whatever its size, has to meet the setbacks, the rules on how far it sits from your lot lines. If you want masonry footings or a block foundation under it, we build those.
How much does masonry repair cost in Londonderry?
The cost comes down mostly to what's causing the damage and how much has to come apart to reach it, so a few worn joints run far less than a wall with a failing footing behind it. Staging for a tall chimney, matching old brick or stone and digging down to a footing all add to it. I'd rather tell you the job is smaller than you feared, and the written estimate shows what I'd fix and why.
What causes basement wall cracks in Londonderry houses?
Most come from water and frost pushing on the wall, settling under the footing, or concrete shrinking as it cured, and each needs a different fix. Thin vertical cracks that stay dry are usually shrinkage and often need little more than sealing, while cracks that leak, widen, run sideways or step through block joints point to pressure or movement I need to track down.
Manchester, NH
Get your Londonderry masonry problem looked at
Send a photo of the crack or leak with the form, or call (603) 314-0526, and I'll know what to look for before I get there.