Four trades, one shop, one number.
Caswell & Sons runs full plumbing, heating and cooling, water heater, and well pump desks out of one Canterbury shop. Family-owned since 2010, 16+ years on the same roads, licensed master plumbers and HVAC techs on every truck.
Drains, leaks, fixtures, gas, repipes.
The whole house, under one license.
A clogged main, a leaky shutoff, a kitchen faucet that finally gave up, a sump that died the night the rain came. We handle the everyday plumbing that runs a Quiet Corner home, plus the bigger jobs (repipes, gas line work, sewer line repair) that most general handymen will not touch. Every plumbing dispatch ships with a licensed CT master plumber on the truck.
Not sure whether it is a plumbing problem, a water heater problem, or a well pump problem? Call. We will triage on the phone, no charge.
- Drain and sewer cleaning
- Leak detection and repair
- Faucets, toilets, garbage disposals
- Gas line install and repair
- Whole-home repipes
- Sump pumps and ejector pumps
- Sewer line repair and replacement
Furnaces, boilers, heat pumps, mini splits, AC.
Five systems, one trade desk, one URL.
Heating and cooling is one trade in Eastern Connecticut, not five. The same techs who install your central AC in July are pulling your boiler apart in February. So we built one service page covering every system we touch, with full sections on each.
We are cold-climate heat pump installers (a lot of installers still are not), we service oil and gas boilers across the region, and we run the Energize CT and federal rebate paperwork so you do not have to.
- Furnaces
- Boilers
- Heat Pumps
- Mini Splits
- Central AC
Tank, tankless, or hybrid. Replace right.
Same-day tank swaps from truck stock. Heat pump hybrids qualify for Energize CT rebates plus the federal 25C tax credit.
Hot water is its own category in our shop. Different equipment, different brands, different rebate paths, different decisions when something fails. So it gets its own page, not a buried section.
Tank water heater leaking in the basement? We can usually replace same-day with a Bradford White from truck stock. Considering tankless? We will walk you through gas line and venting before you commit. Heat pump hybrid? Qualifies for Energize CT rebates plus the federal 25C tax credit. We do the math with you on the kitchen table.
- Tank
- Tankless
- Heat Pump / Hybrid
- Tank (gas/electric)
- Lifespan 8 to 12 years · UEF 0.60 to 0.70 · Recovers 0.5 to 1.0 GPM between draws
- Tankless (gas, whole house)
- Lifespan 20+ years with annual descaling · UEF 0.93 to 0.98 · Continuous 4 to 8 GPM, no run-out
- Heat pump hybrid
- Lifespan 10 to 15 years · UEF 3.0 to 4.0 (3× to 4× a standard electric tank) · Federal 25C + Energize CT eligible
Submersible, jet, pressure tanks. The full desk.
Half the Quiet Corner is on a well. We are not a side-bet on this trade.
If your taps sputter, your pressure drops mid-shower, or your well runs dry on a Sunday, that is a well pump call, not a plumbing call. Caswell runs well pump service as a full trade desk, not a hand-off. Submersible, jet, shallow well, deep well, plus pressure tanks (which is what is actually failing about half the time homeowners think the pump is dead).
We work across Canterbury, Plainfield, Brooklyn, Scotland, Hampton, Lisbon, Sprague, Griswold, Norwich, Windham, Pomfret, Killingly, Woodstock, Putnam, Sterling, Voluntown, and the rest of the Quiet Corner. Most of these towns are well-water territory. We know what is underground.
- Submersible and jet pump install and replacement
- Pressure tank service and sizing
- Low pressure and sputtering diagnostics
- Short-cycling and pressure switch repair
- No-water emergency service
- Water quality testing referral
Burst pipe. No heat. No water. Call.
A live dispatcher answers every emergency call, every hour of every day. A master plumber or HVAC tech is on the truck inside the hour for confirmed emergencies across the Quiet Corner and Eastern Connecticut.
Where we work
We dispatch across the Quiet Corner and Eastern Connecticut. If your town is on the list, you are inside our standard radius. If it is not, call and ask. We add and drop towns based on where the crews are working that week.
- Andover
- Ashford
- Bozrah
- Brooklyn
- Canterbury
- Chaplin
- Colchester
- Columbia
- Coventry
- Eastford
- Franklin
- Griswold (Jewett City)
- Hampton
- Hebron
- Killingly (incl. Danielson)
- Lebanon
- Lisbon
- Mansfield (incl. Storrs)
- Montville
- North Stonington
- Norwich
- Plainfield
- Pomfret
- Preston
- Putnam
- Salem
- Scotland
- Sprague (Baltic)
- Sterling
- Thompson
- Tolland
- Voluntown
- Willington
- Windham (incl. Willimantic)
- Woodstock
We answer the phone. We show up. We fix it.
Pick a trade above or call straight through. A real person on our end picks up. We will quote the work, schedule the visit, and dispatch a licensed master plumber or HVAC tech to your house. Emergency or standard. Quiet Corner or anywhere we cover in Eastern CT.