Restaurants
Grease traps, commercial dishwashers, water heaters, hood vent gas runs, drain jetting. We've seen what kitchens do to plumbing.
Commercial —
we know your hours matter.
Restaurants, offices, retail, multi-family. We do scheduled maintenance, emergency repairs, and full installs — and we work after-hours so you don't lose business.
- Master Plumber
- After-hours installs
- Service contracts available
Master Plumber #MP176295.0 on GoogleOpen 24 hours
Same-day callback
Get a quote on commercial plumbing & hvac
30 seconds. We call you back the same day.
Recent plumbing work
View all
Commercial tankless bankBoston, MA 
Twin tankless installPlymouth, MA 
Home-run PEX manifold rough-inNeedham, MA 
Water filtration installationWellesley, MA
Who we serve
Buildings that can't afford to be down.
Different stakes than a single-family home. We schedule around your hours, communicate proactively, and tell you the minute we know something is wrong.
Offices & retail
Restroom fixtures, water heater swaps, drain cleaning, HVAC service. After-hours scheduling so customers don't see us.
Multi-family / property management
Per-unit repairs, in-unit installs, building-wide preventive plans. One point of contact for the whole property.
Commercial boilers & rooftop units
Larger commercial boilers (gas, oil, condensing) and rooftop HVAC units. We service common brands and pull permits where required.
How it works
From phone call to walkthrough — done right.
1. Site walk
We learn your building, your hours, and your pain points. Helps us spec equipment and schedule realistically.
2. Quote with options
Sometimes you need it perfect, sometimes you need it back up before the lunch rush. We give you both options when there's a real choice.
3. Work around your hours
Most commercial work happens after-hours or on off days. We don't disrupt your operation unless we have to.
4. Documented & invoiced cleanly
Photos before/after, line-item invoice, parts & labor split. Easy to file with your accountant or insurance.
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 commercial plumbing & hvac.
Do you do service contracts?
Yes — quarterly or semi-annual preventive plans for water heaters, drains, boilers, and HVAC. Cheaper than reactive repairs and you don't get a 4am call about a flooded basement.
Can you work after-hours?
Yes, for an after-hours rate. Most commercial installs we do at night or on Sundays so the business stays open.
Are you bonded and insured?
Yes — fully licensed, bonded, and insured. We'll send a COI to your property manager or general contractor on request.
More plumbing services
Other plumbing 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.