Water Heater Installation in Middlesex County, MA
The One Appliance Nobody Thinks About Until It's Cold
Opus installs and replaces gas and electric water heaters across Middlesex County and the Merrimack Valley, out of North Billerica. Of all our plumbing services, this and boilers are the two Rick calls the company’s biggest. You get one flat price in writing before a tool comes out of the truck, with the permit, the town inspection and hauling the old tank away already inside it. Same day is often possible when the schedule allows. If the hot water has gone completely, 24/7 emergency plumbing is answered at any hour.
- Permit, inspection, and haul-away included.
- Booties on, floors covered, every visit.
- Emergency help, around the clock.
When It's Time to Replace Your Water Heater
Hot water runs out faster than it used to.
Rusty or metallic water from the hot tap only.
A rumble or a popping sound when it fires.
Damp around the base, or a stain on the pan.
It's past its age and you've had one repair already.
Repair or replace?
A heater under eight years old with a failed thermostat or element is usually worth fixing. Past ten, with a tank that’s rusting, you’d be paying to keep something alive that’s already told you it’s finished. Water heater repair is where that call actually gets made, and we’ll tell you which side of it you’re on rather than defaulting to the bigger job.
SUBMIT A FORM & REACH OUT
Choosing the Right Water Heater for Your Home
Gas and Electric Tank Water Heaters
Gas is the common setup here, because it’s already at the street in the municipal towns. A gas tank recovers faster than electric, which matters more than raw capacity in a house where three people shower inside an hour.
Electric suits homes with no gas service, difficult venting, or less demand. Fewer components, no combustion air, no flue. It recovers more slowly, so sizing has to be done properly rather than matched to whatever was there before.
On size, the old tank is a starting point, not an answer. A 40 gallon gas heater suits many two-bathroom houses, 50 is the common upgrade when a family outgrew the original, and 80 gallon electric shows up in larger homes without gas. What decides it is how many bathrooms run at once, how many people, and whether something oversized like a soaking tub is on the line.
An indirect water heater is worth knowing about if you already have a boiler: a tank with no burner of its own, heated by the boiler through a coil. A genuine New England setup, and that sizing conversation runs through the heating side rather than this page.
Hybrid and Heat Pump Water Heaters
A heat pump water heater pulls warmth out of the surrounding air rather than making it from scratch, so it uses far less electricity than a standard electric tank. Hybrid units do both, switching to conventional elements when demand spikes.
They need conditions to work well: unheated space around them, usually a basement rather than a closet, and a drain for condensate. They also cool the room they sit in, welcome in July and less so in January.
On rebates, utility and state incentive programs for this equipment come and go, and the rules change year to year. We don’t administer them or advise on what’s currently available, so check with your utility before planning around a number. What we will tell you is whether your basement suits the equipment, which is what decides whether you’d be happy with it.
When a Tankless Upgrade Makes Sense
Tankless is worth considering if you keep running out of hot water, want the floor space back, or have the gas capacity for it. Endless hot water is the real selling point, not efficiency alone.
It isn’t automatically the better choice. Tankless water heaters cost more up front, want annual descaling to keep the warranty intact, and often need the gas line upsized. If a straight tank swap does what you need, we’ll say so. If it’s genuinely the right call for your house, there’s currently $400 off a tankless upgrade on our special offers.
What Your Water Heater Installation Includes
Permit, Inspection and Haul-Away, Included in the Price
This is where a quote either holds up or starts growing. Four things are inside our number that frequently sit outside somebody else’s.
The permit.
The town inspection.
Hauling the old tank away.
A full year on labor and materials.
On what a water heater installation costs, we don’t publish figures, because a number without your house attached to it is a guess. What moves the price is knowable though: tank size, gas versus electric, whether the venting has to change, whether code upgrades are triggered, and whether the gas line can carry what you’re putting in. We look, then we hand you one number. If money is the obstacle rather than the decision, financing through Wisetack spreads it monthly, and there’s $50 off for new customers.
Venting, Expansion Tanks and Massachusetts Code
Thermal Expansion Tanks
Water expands when you heat it, and it has to go somewhere. In an older open system it pushed back toward the street. Most homes now have a backflow preventer or pressure reducing valve on the incoming line, which closes the system. The expanding water has nowhere to go, so pressure climbs.
That's what a thermal expansion tank absorbs.
Without one, a closed system takes that pressure out on the T&P relief valve, which starts weeping, and on the tank seams. It’s the most common thing we find missing on a heater somebody else installed. It gets charged to match your house’s static pressure, not fitted out of the box and left. A tank charged wrong does very little.
Venting and Gas Line Sizing
Gas line sizing is the one that catches people.
Brands We Install and Service
State and AO Smith are what we install most often, and what you’ll see on the trust strip. Bradford White and Rheem we install and service as well. All four are widely stocked and easy to get parts for years down the line, which matters more than any brochure claim about efficiency.
We don’t install oil-fired water heaters. Gas and electric only. If yours runs on oil, we’re the wrong call and we’d rather say so on the phone.
No manufacturer certification is claimed here. We install and service these brands. That’s a different statement from holding a badge, and we’d rather draw the line honestly.
Water Heater Installation Across Middlesex County
Opus works roughly 20 miles out from North Billerica. Woburn, Chelmsford and Tewksbury generate more replacements than anywhere else on the map, because of the age of the housing and what the water does to a tank over a decade.
Permits are local, and that’s not a formality. Each town runs its own office, scheduling and inspector. Knowing how a particular one works is the difference between closing out on Thursday and closing out next week. It’s also why the inspection sits inside our price rather than as an hourly line. The waiting is our problem to manage.
If your town isn’t in our service areas, call and ask anyway. The edge of the radius isn’t a hard line, and we’d rather tell you on the phone than have you assume either way.
The No-Surprise Number
One Flat Price, in Writing, Before Work Starts
Most water heater quotes start an hourly clock you can’t see, then add a permit fee, a disposal charge, and the hour somebody sat in your driveway waiting on the town inspector. We hand you one flat number in writing before a tool comes out of the truck, and the permit, the inspection and the haul-away are already inside it. If we pull the old tank and find the venting has to change or the gas line won’t carry the new unit, we stop, give you a new number, and nothing happens until you say go. The number you agreed to is the number you pay.
Our Customer Feedback
Rick Green did an awesome job with all of my plumbing needs during a total renovation. I needed everything in my home connected/redone in the kitchen and bathroom. He took care of the transition from bathtub to standing shower-it’s all …
July 2026
Ricky and the team at OPUS are fantastic! Super knowledgeable, punctual and all around great group of guys. Really grateful to have found them, I sleep easier now knowing I have a great plumbing team (you genuinely never know when you may …
August 2026
I highly recommend (Rick) he was on time fixed everything, was polite and answered all our questions and cleaned up everything when he was done! Thank you so much!
March 2026
April 2026
“Been using Opus for years on a variety of projects. Reliable, transparent and priced well. Rick does great quality work. Highly recommend for homeowners, investors and builders.”
May 2026
“Had a leak in my water heater tank. Ricky and team arrived very quickly, same day to assess the situation. I asked if we could avoid swapping out the water heater and just buy the parts needed to fix (I was being cheap!) – he did he absolute best (a few hours) trying to extract the old part and replace it with a new one. He tried far longer than any other plumber would have tried. After several hours of attempts we all came to the conclusion that it simply wasn’t coming out. I ran to Home Depot (it was Saturday) and grabbed a water heater. Ricky and team had it installed within 15 minutes and my new unit is working perfectly.
Very impressed with Ricky’s transparency and honesty. Most others wouldnt have given me the time of day…”
April 2026
I contacted Opus upon being referred to them by someone they also did great work for. They showed up on time and finished a heating system job for me with the utmost professionalism and quality. I would definitely recommend them to others!!
October 2025
Ricky was Fantastic!!!! Fast and accurate service!!! Highly recommend!!!
March 2026
I highly recommend (Rick) he was on time fixed everything, was polite and answered all our questions and cleaned up everything when he was done! Thank you so much!
March 2026
April 2026
Rick Green did an awesome job with all of my plumbing needs during a total renovation. I needed everything in my home connected/redone in the kitchen and bathroom. He took care of the transition from bathtub to standing shower-it’s all …
July 2026
Ricky and the team at OPUS are fantastic! Super knowledgeable, punctual and all around great group of guys. Really grateful to have found them, I sleep easier now knowing I have a great plumbing team (you genuinely never know when you may …
August 2026
“Had a leak in my water heater tank. Ricky and team arrived very quickly, same day to assess the situation. I asked if we could avoid swapping out the water heater and just buy the parts needed to fix (I was being cheap!) – he did he absolute best (a few hours) trying to extract the old part and replace it with a new one. He tried far longer than any other plumber would have tried. After several hours of attempts we all came to the conclusion that it simply wasn’t coming out. I ran to Home Depot (it was Saturday) and grabbed a water heater. Ricky and team had it installed within 15 minutes and my new unit is working perfectly.
Very impressed with Ricky’s transparency and honesty. Most others wouldnt have given me the time of day…”
April 2026
“Been using Opus for years on a variety of projects. Reliable, transparent and priced well. Rick does great quality work. Highly recommend for homeowners, investors and builders.”
May 2026
Ricky was Fantastic!!!! Fast and accurate service!!! Highly recommend!!!
March 2026
I contacted Opus upon being referred to them by someone they also did great work for. They showed up on time and finished a heating system job for me with the utmost professionalism and quality. I would definitely recommend them to others!!
October 2025
Questions Billerica Homeowners Ask Us
Owner & Master Plumber
How long does a water heater last?
Should I repair or replace my water heater?
What size water heater do I need?
Do I need a permit to replace a water heater in Massachusetts?
Can you replace it the same day?
Owner & Master Plumber
The Towns We Cover Across Middlesex County
Opus runs out of North Billerica and covers roughly a 20-mile radius, from the older neighborhoods of Woburn and Winchester to the affluent, boiler-heavy homes in Concord, Carlisle, and Lincoln. If your home is within about 20 miles, we most likely cover you.
Tips for Keeping Your Water Hot and Your Basement Dry
It’s about to get cold
You think something’s leaking
Your boiler needs looking at
It’s about to get cold
You think something’s leaking
Your boiler needs looking at
Your water heater is making you nervous
