Plumber, Electrician & HVAC in Chelmsford, MA | Serving All Villages

Chelmsford homeowners can book a licensed plumber, electrician, or HVAC technician with one call to Basnett Plumbing, Heating, AC & Electrical. We fix leaks and dead circuits, replace furnaces and water heaters, and install heat pumps, generators, and EV chargers. Call 978-431-2906 or request service online to schedule.

Family-Owned Since 1987 | MA Master Plumber License #10671 | MA Electrical License #8567 A1 | A+ BBB Rated | 4.9 Stars from 1,500+ Google Reviews

Plumbing Repair and Replacement

Chelmsford plumbers earn their keep on the small jobs and the big ones. Ours fix leaking pipes, dripping faucets, toilet repair, and failing disposals, and they handle the larger work: whole-house repiping, waterline replacement, and new plumbing for remodels, additions, and new construction.

Chelmsford was incorporated in 1655, and the Chelmsford Center Historic District still anchors the town. If your house is among the older ones near the Common, ask for a look at the supply and drain lines so you can plan repairs on your schedule instead of the pipes'.

Water Heater Installation and Replacement

The right water heater depends on the size of your household, the fuel available, and the space you can give it. We install a conventional tank model, a tankless water heater, or a heat pump water heater, haul away the old one, and make every connection. When a new circuit is part of the job, our electricians do that work too.

A summer day at Freeman Lake Beach in North Chelmsford ends with sandy kids and a line for the shower. If the hot water gives out before everyone is clean, we can size a replacement for your household.

Drain Cleaning and Sump Pump Service

Repeat clogs, gurgling fixtures, and water on the basement floor each point to a different problem, and the right fix depends on the cause. Our plumbers handle drain cleaning and drain repair, and they install and service sump pumps and sewage ejector pumps.

The Concord River forms Chelmsford's eastern boundary and the Merrimack River runs to the northeast. If your property sits near either one, test the sump pump in March, not after the first storm of the spring.

Boiler Installation and Repair

Boilers announce trouble with cold radiators, banging pipes, leaks, and pressure that will not hold. Our technicians handle boiler repair and install new high-efficiency boilers, and they present the repair and replacement options together so the choice is yours to make.

Chelmsford has houses that date back centuries, such as the 1663 Barrett-Byam Homestead and the 1691 Old Chelmsford Garrison House. If your own older home heats with an aging boiler, we can review its condition before winter.

Furnace Repair and Replacement

A furnace that will not start, runs but blows cool air, or shuts down mid-cycle needs to be diagnosed, not just reset. We repair gas furnaces and oil furnaces and install new high-efficiency units when replacement makes sense.

North Chelmsford developed as an industrial village, and its North Town Hall dates to 1853. Whether your house is in the old village or elsewhere in town, a fall inspection keeps a furnace from quitting in the first cold snap.

Heat Pump and Ductless Mini-Split Installation

Heat pumps provide heating and cooling from one system, and ductless mini-split systems deliver the same comfort to individual rooms without ductwork. They suit additions, finished basements, sunrooms, and older houses with limited duct space. We size, install, and service both.

Around South Chelmsford Center, a bonus room over the garage or a finished lower level is the kind of space where a mini-split earns its place.

Air Conditioning Repair and Installation

An air conditioner that runs constantly, blows warm air, or leaks inside the house needs attention before the next heat wave. We repair central air systems and install new air conditioning sized to your home's cooling load.

Heart Pond Beach opens in early June and stays open through Labor Day. A spring AC check means the house is ready when you get back from the water.

Indoor Air Quality, Duct Sealing, and Humidity Control

Stale air, dust, and uneven humidity are separate problems that tend to show up together. We offer Aeroseal duct sealing and air filtration, bring in fresh air with energy recovery and heat recovery ventilators, and manage moisture with Aprilaire whole-house humidifiers and dehumidifiers.

The Bruce Freeman Rail Trail runs 6.8 miles through Chelmsford, including Central Square. If a ride or run ends at a house that feels stuffy or parched, a ventilation and humidity review is a smart first step.

Zone Control and Radiant Floor Heating

Zoning lets the upstairs, the basement, and the living room each follow their own schedule instead of sharing one thermostat. Our technicians install zone control systems and radiant floor heating, which brings steady, quiet heat to kitchens, baths, and finished lower levels.

In West Chelmsford and across town, a two-story house with a sunny family room and a cold north bedroom is a classic case for zoning.

Electrical Panel Upgrades and Circuit Breaker Replacement

A heat pump, EV charger, or generator on the wish list can be more than an older panel can carry. Our Chelmsford electricians handle the electrical panel upgrade, circuit breaker replacement, diagnosis of breakers that trip, and whole-system reviews.

Near Canal Street in East Chelmsford, where pieces of the Middlesex Canal still remain, or anywhere else in town, schedule the panel review before the next big project.

Whole-House Generator Installation

A whole-house generator turns on by itself when the grid goes down and powers the circuits you have chosen. Our electricians and plumbers install Kohler generators end to end, including the pad, the gas piping, the wiring, and the transfer switch.

When winter weather brings down lines along Route 129 or the side streets off it, a standby generator keeps the heat, refrigerator, and sump pump going.

EV Charger Installation

EV charger installation begins with a close look at your panel and the run to your garage or driveway. Our electricians confirm the available capacity, install a dedicated circuit, mount the Level 2 charger, and test the finished installation.

Interstate 495 and Route 3 meet in Chelmsford. If you commute on either, a home charger means the car is ready for the road when you are.

Whole-House Surge Protection

Lightning, utility switching, and big motors starting up can send brief voltage spikes through the wiring. A whole-house surge protector at the panel helps protect your furnace, air conditioner, appliances, and electronics. We install it by itself or during a panel upgrade.

From Central Square, where Routes 4 and 110 meet, out to the quieter streets of the Westlands, the same advice applies: protect the equipment before storm season, not after.

Electrical Repair, Lighting, and Ceiling Fan Installation

When a switch stops working or a fixture buzzes, our electricians find the fault and fix it. They also install ceiling fans, recessed lighting, dimmers, and outdoor lighting. Choose from Lutron dimmer switches and a range of light fixtures and switches, or call us about any other electrical work.

The Old Town Hall on the Common, an Italianate building from 1879, shows how much of the town's character is historic. If you are refreshing an older interior, we can add lighting that suits it.

Why Chelmsford Homeowners Choose Basnett

When you need more than one trade, a single call to Basnett Plumbing, Heating, AC & Electrical covers it, which matters on jobs like a generator that requires electrical work and gas piping. Our team holds Massachusetts licenses covering plumbing, gas fitting, oil burner service, electrical work, and sheet metal, and as a Bryant dealer, Basnett Plumbing, Heating, AC & Electrical installs Bryant heating and cooling equipment. Our office is at 438 King Street in Littleton, and our crews serve homes throughout Chelmsford. Emergency service is available when a leak, a heating failure, or an electrical problem cannot wait.

Plumbing, Electrical, and HVAC Questions Answered

Why does my Chelmsford heat pump look iced over in winter?

A thin layer of frost on the outdoor unit is normal in cold, damp weather, because the heat pump periodically runs a defrost cycle to melt it. A thick, solid block of ice, or frost that does not clear, points to a problem such as restricted airflow or a failing component, and a technician should look at it.

Why is my water heater popping or rumbling?

Those sounds usually come from sediment built up at the bottom of the tank, where water trapped under the layer heats and bubbles. Flushing the tank can help in some cases, and a heater that keeps making noise or has reached the end of its life may be a candidate for replacement.

Why do the outlets in my Chelmsford house feel warm or buzz?

A warm or buzzing outlet can mean a loose connection, a worn receptacle, or an overloaded circuit, and any of those can become a fire hazard. Stop using that outlet, unplug what is connected, and have an electrician inspect it as soon as you can.

What makes a drain gurgle or a toilet bubble when another fixture runs?

Gurgling usually means air is struggling to move through a partial blockage or a vent problem somewhere in the drain system. If it happens at more than one fixture, the main line may be clogged. Our plumbers locate the blockage and clear it.

How can I tell if the ducts in my Chelmsford house are leaking?

Signs include rooms that never match the thermostat, dust that returns quickly after cleaning, a system that runs constantly, and ducts running through an attic or crawlspace. A technician can test the ducts for leakage and recommend sealing where it will help.

Can I add an electric or induction range to my Chelmsford kitchen?

An electric or induction range usually needs a dedicated 240-volt circuit with wire rated for the load. An electrician checks your panel's capacity, runs the circuit, and installs the outlet so the range can be connected safely.

Does my gas furnace or boiler need a combustion check?

Combustion checks measure how completely the appliance burns fuel and whether it vents safely. Having one done during annual service helps catch problems early. Keep carbon monoxide detectors on every level and near bedrooms, and test them regularly.

Schedule Plumbing, Electrical, or HVAC Service

Whether the call is a leak, a dead circuit, or a heating system that has quit, our licensed team is ready. Call 978-431-2906 or request service online to schedule service at your Chelmsford home.