Gas & oil boilers
Natural gas, propane, and oil-fired — install and full replacement. Trusted brands: Viessmann, Buderus, Triangle Tube, Burnham, Weil-McLain.
Boiler installation & repair
done right.
High-efficiency boiler installs and emergency repairs across Southeastern Massachusetts. Master Plumber on every job — and we actually pick up the phone.
- Master Plumber on every install
- Mass Save rebates handled
- Honest, upfront pricing
Master Plumber #MP176295.0 on GoogleOpen 24 hours
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Get a quote on boiler installation & repair
30 seconds. We call you back the same day.
Recent heating work
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Boiler & zone-valve manifoldLakeville, MA 
Boiler installationNeedham, MA
What we install
Old, new, gas, oil, indirect — we do it all.
Whether your boiler died last night or you're planning a high-efficiency upgrade, we handle the full job: removal, install, piping, controls, permits, and rebate filing.
High-efficiency condensing boilers
High-efficiency condensing units that qualify for Mass Save rebates and meaningfully cut heating bills versus older cast-iron units.
Indirect water heaters
Pair your boiler with an indirect tank for unlimited hot water at a fraction of the running cost of a standalone heater.
Boiler repair & service
No-heat calls, leaks, low-pressure, expansion tanks, circulators, zone valves — diagnosed and fixed same day when possible.
How it works
From phone call to walkthrough — done right.
1. Free in-home assessment
Our Master Plumber comes out, checks your existing system, runs a Manual J load calc, and explains your options in plain English.
2. Honest, written quote
Itemized pricing. No 'good/better/best' games — just the right unit for your house, with the rebate already factored in.
3. Clean, professional install
We protect your floors, run new piping cleanly, install controls, and pressure-test every joint. Most installs are done in 1–2 days.
4. Walkthrough + paperwork
We label everything, walk you through how it works, and file the Mass Save rebate ourselves so you actually get the check.
Why Competitive
We don't promise quality. We deliver it.
We size it for your house, not the catalog
Manual J load calc on every install — most contractors skip it. Wrong size = short cycling, comfort issues, and a lot of wasted fuel.
Mass Save rebates handled for you
We're a registered Mass Save partner. Generous rebates on qualifying heat pumps and high-efficiency boilers — we file the paperwork.
Master Plumber on every install
Licensed Master Plumber (MA #MP17629) on every install — not a sales rep, not a sub.
Clean, labeled, serviceable
Our installs are diagrammed, labeled, and tidy. The next tech who walks in (even if it's not us) can service the system without guessing.
FAQ
Common questions about boiler installation & repair.
How long does a boiler installation take?
Most residential boiler swaps are done in one day. Older systems with major piping or venting changes can run a second day. We give you an honest timeline before we start.
Do you handle the Mass Save rebate?
Yes. We're a registered Mass Save partner. We file the paperwork on your behalf — rebates on qualifying high-efficiency boilers can add up fast.
Can you install a boiler in an emergency (no heat)?
Yes. We carry common boilers in stock and can usually have you back up and running within 24–48 hours of a no-heat call. Call (508) 944-7623 — we answer 24/7.
Gas, oil, or heat pump — what's right for my home?
We're brand-agnostic and run the math for each option. If a heat pump makes more sense for your house and Mass Save bill, we'll tell you. We don't push the most expensive system.
What areas do you serve?
We're based in Lakeville and serve all of Southeastern Massachusetts — including Plymouth, Bourne, Sandwich, Newton, Needham, Wellesley, Berkley, and Boston.
More heating services
Other heating work we handle.
Reviews on Google5.028+ reviewsDon't take our word for it. Take theirs.
From neighbors across Lakeville, Plymouth, Newton, Needham, Wellesley and beyond.
“Rob's work is top notch. I'm a picky engineer. His choice of equipment, materials and his workmanship was excellent. In the bidding process, Rob was responsive, honest, competent, creative, and respectful.”
“He answered his phone at 6:30am. Within 15 minutes, Rob called and told me how to repair it myself — he did not take advantage of the situation. Saved me real money.”
“Rob was very professional and did an excellent job. Far surpassed my expectations. Will use him again in the future.”
“I recommend Rob with my highest level of support! Rob has installed multiple systems for me over the years.”
“His professionalism and craftsmanship went above and beyond what we expected. Highly recommend!”
“Great about keeping me in the loop. Very polite & respectful. Rob cleaned up on his way out — even brought his own vacuum.”
“Professional, very neat and orderly. Came when he said he would and did a great job.”
“Competitive Plumbing and HVAC was very responsive. I consulted with them and they did exactly what I wanted.”
Read more reviews on GoogleWhere we've done work
Based in Lakeville. We serve it all.
Every red dot is a job we've completed. We're rooted in Lakeville and travel across Massachusetts — don't see your town? Call us, we probably cover it.
- Lakeville, MAHQ
- Berkley, MA
- Boston, MA
- Plymouth, MA
- Bourne, MA
- Sandwich, MA
- Newton, MA
- Needham, MA
- Wellesley, MA
- Headquarters
- Service area
- Past job
Open right now
(508) 944-7623Ready to get it done right?
Call us. We answer 24/7 — and we'll tell you straight up what it takes to fix it.