Cathal Daly Plumbing & Heating is the number Harwich homeowners call for a stuck valve, a furnace that quit overnight, or an outdoor shower that needs to work before the next houseguest arrives. The owner says on his site that he was born and raised on Cape Cod and trained at Cape Cod Tech, and he runs the company himself, covering plumbing repairs, gas piping, water heater and boiler service, and outdoor shower installation for Cape Cod homes and businesses.
Response speed comes up constantly. In an April 2026 review, a customer says her mother lost heat on a bitterly cold day, left messages for several plumbers, and Cathal called back within minutes and fixed the problem before heading to his own scheduled job. Another landlord describes him driving to Hyannis mid-repair to track down the right part and fixing her tenant's furnace for less than she expected, then getting flagged about the same furnace again a week later during a deep freeze. Across 41 Google ratings, the average sits at 5 stars, and the pattern holds throughout the record: reviewers keep noting he shows up when promised and finishes jobs the same day he's called — one customer put it, in a 2025 review, as leaving a job "as if he were never there."
Outdoor showers are something of a signature. In a June 2025 review, a customer describes him re-plumbing an entire outdoor shower system and replacing an irrigation backflow valve within an hour or two, and his own site lists installing, servicing, and seasonally winterizing outdoor showers as a standing service. A property manager says she calls him for every plumbing and heating job across her rental properties, and that every job has gone right without complaint.
The one blemish sits on Angi, where three ratings average 3.7 stars against Google's 5. In a 2025 review there, a customer says Cathal did a poor job cleaning a furnace, left a mess and trash behind, promised a $50 reimbursement he never paid, and left with the customer's plumbing tool tray. It's the single substantive complaint in an otherwise consistent record, and it's worth asking directly how he'd handle it if a repair or cleanup came up short.
For the everyday plumbing and heating calls Cape Cod homes make — a leaking water heater, a dead furnace, a faucet that won't shut off, an outdoor shower to bring back to life — he's a well-reviewed, fast-responding option. Get the scope and price in writing before he starts, and ask about the Angi review directly if it matters to you.
