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Caples Mechanical describes its work as residential and light commercial plumbing, from leaky faucets to full bathroom remodels, throughout Wilmington and the surrounding area. A 2026 customer said a leaking elbow joint in a water pipe was fixed the same day. A 2026 customer described a weekend response to locate a plumbing leak, followed by a quickly scheduled job when same-day completion proved unnecessary. A 2026 customer said the existing drain was removed and the drain pipes refitted without going outside, avoiding the possible backyard excavation they had anticipated for a rusted cast-iron sewage line. A 2026 customer said Mark and his team replaced a cast-iron waste-water pipe with PVC, were careful with the home and cleaned up the work area. A 2026 customer said a bathroom remodel included converting a tub to a walk-in shower, with proposed design solutions and prompt communication. A 2026 customer praised the updated bathroom at the Wilmington United Methodist Church Parsonage and said Caples coordinated with all the vendors and worked with their schedule. A 2026 customer said a technician found and fixed the problem with intermittently failing central air conditioning and had them cooling off in an hour. A 2026 customer said Mark and James came to look at a failed furnace before a long weekend and fixed it a few days later. A 2026 customer said Caples installed a completely new heating and air-conditioning system in their daughter's condominium.
We had a great experience with Caples for a plumbing leak. Quick response to come locate the problem (on a weekend!) and then quick turnaround for scheduling the job when it turned out it didn’t require completion the same day. They were right on time and very professional. Very happy with the work and price. Even our dog liked them, and he is picky.
Caples Mechanical was recommended to us by a neighbor. We had gotten 3 quotes to replace our cast iron waste water pipe with PVC and theirs was free and most reasonable. Mark and his team were on time, professional, communicative, and very patient with our dog. The work appears to have been done well. They were careful with our home and cleaned up the work area. We would absolutely use them again and would recommend to others.
Very detailed and efficient work.
My main sewage line was weeping on the interior. Because the pipe was cast iron but had rusted out to remove it and replace the whole drain system possibly meant excavating the backyard. They removed existing drain and refitted the drain pipes correctly without going outside. The job was handled perfectly with service rarely seen these days. I will be using them for their services going forward. If you are looking for a plumber that answers your calls, shows up when they say they will and does a perfect job, then this is the place.
A water pipe was leaking at an elbow joint. They fixed it the same day.
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2 changes recorded — last scanned Sep 23, 2026.
Typical New Hampshire range for this kind of work, from regional averages — not a quote from Caples Mechanical. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$240 – $580
Typical plumbing job around $410
Water treatment installs5.0
Prompt repair visits5.0
