“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.”
Cooling —
sized right, installed clean.
Central AC, ductless mini-splits, and ductwork that actually carries the air. We size on Manual J — not square-footage rules of thumb.
- Manual J sizing on every install
- Mitsubishi & LG factory-trained
- Same-day diagnostic visits
Master Plumber #MP176295.0 on GoogleOpen 24 hours
Same-day callback
Get a quote on cooling
30 seconds. Rob calls you back personally.
Recent cooling work
View all
Bedroom mini-split installWellesley, MA 
Sunroom mini-split installNeedham, MA 
LG mini-split systemNewton, MA 
AC condenser installLakeville, MA
Cooling services
Pick what you need.
Most cooling complaints — humidity, cold spots, short cycles — come from the wrong-sized unit on the wrong ducts. We measure first, then quote.
Central AC Installation
Manual-J sized, refrigerant-charged to spec, walked through.
Learn moreAC Repair & Maintenance
Same-day repair plus annual tune-up plans.
Learn moreDuctless Mini-Split Systems
Mitsubishi & LG, single-zone or whole-home multi-zone.
Learn moreDuctwork Repair & Replacement
Sealing, redesign, and room-by-room balancing.
Learn more
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 20% wasted fuel.
Mass Save rebates handled for you
Registered Mass Save partner. Up to $10,000 in rebates on qualifying installs — we file the paperwork.
Owner on every install
Rob is a Master Plumber (MA #MP17629). On every install personally — 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 cooling questions.
How do I know what AC system size I need?
We run a Manual J load calculation — it accounts for windows, insulation, exposure, and air leakage. Most homes get sized on a square-footage rule of thumb that's off by 20-40%, which is why so many systems short-cycle and don't dehumidify properly.
Should I get central AC or ductless mini-splits?
Have ducts already? Central is usually the right answer. No ducts (older homes, additions, finished basements)? Mini-splits avoid tearing out walls. We'll walk you through both options with real numbers.
Do mini-splits work in Massachusetts winters?
Yes. Modern cold-climate units (Mitsubishi Hyper-Heat, LG Inverter) maintain rated capacity at 5°F and keep producing heat to -13°F. The 'mini-splits don't work up north' line is from 1990s technology.
What rebates are available on new AC systems?
Mass Save rebates apply to most heat-pump installs (which cool AND heat). Up to $10,000 for whole-home systems. Standard AC-only installs may qualify for utility rebates depending on SEER tier — we file all rebate paperwork for you.
Reviews on Google5.0Don't take our word for it. Take theirs.
From neighbors across Lakeville, Plymouth, Newton, Needham, Wellesley and beyond.
“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 $300.”
“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.