HVAC
Central air and ductless mini splits, sized right and installed clean, so every room settles where you set it.
What's involved
Licensed and insured, and easy to reach. One local crew for heating, cooling, and plumbing, from the first call to the final walkthrough.
Cold weather is coming. Book your fall tune-up before the rush.
Book your fall tune-up before it gets cold.
Book nowWhat we do
Cooling, heat, and water are the three systems no home or business can do without. We handle all three, installed, replaced, or repaired, so there is only one number to keep on hand.
Central air and ductless mini splits, sized right and installed clean, so every room settles where you set it.
What's involved
Furnaces, boilers, and heat pumps kept dependable through a New England winter. Fast repairs when the cold hits, and honest replacements only when it is truly time.
What's involved
Repairs, replacements, and new lines. Water that runs where it should and nowhere it shouldn't, from leaks and fixtures to full rough-ins.
What's involved
Heating season is here
Furnaces, boilers, heat pumps and ductwork across the South Shore. A licensed, insured pro inspects your system and puts the price on paper before any work starts.
AVG OVERNIGHT LOW
42°
FAHRENHEIT
EXAMPLE SETTING
70°F
OCTOBER · GAP TO YOUR SETTING 28°F
That gap is the work your heating does every night. A system that struggles in October will not hold up in January.
| Month | Average low (°F) |
|---|---|
| October | 42 |
| November | 33 |
| December | 26 |
| January | 20 |
| February | 21 |
| March | 27 |
Free written quote. Real appointments, no 24-hour emergency line.
If a repair will do, we say so. If replacing is the smarter move, we show you why before you spend a dollar.
Licensed and insured on every job, with no handoffs and nobody to chase for an answer.
Loans from $500 to $200,000 through Enhancify, our financing partner, with no fee from Enhancify. See your options (opens in a new tab) in about two minutes.
On camera
Four recent calls, in the crew's own words. Click a video to watch.
Job walkthroughs, before‑and‑afters and crew updates.
Follow on InstagramGreater Boston, the South Shore, Worcester, and Cape Cod, heating, cooling, and plumbing from a crew based on the South Shore. Tap a county to see what we cover near you.
Local service. Built on trust.
Get my free quoteTap or hover to explore
Main county 3 of 6
Heating, Cooling, Plumbing
Rockland, Marshfield, Bridgewater
Check service availabilityOutside these six, hover or tap any county above, call (774) 417-0596, or send the form below.
Financing
Loans from $500 to $200,000. See your options in about two minutes, with no fee from Enhancify, our financing partner.
For example: $5,000 over 3 years at 10% APR is $161.34 a month, $5,808.24 in total.
Opens Enhancify in a new tab.
Financing through Enhancify, our financing partner. Enhancify is not a lender. Amounts, rates and terms depend on your credit and the lender, and the lender makes all credit decisions. A lender may run a credit inquiry when you select a loan. Funds may be used only for Prime Build & Comfort services. Not available in all states.
AC & Cooling
Central air, ductless mini-splits and whole-home systems across the South Shore. A licensed, insured technician finds the real cause, prices the fix in writing, and gets the air moving again — no guessing, no upsell.
Free written quote. Real appointments, no 24-hour emergency line.
Real appointments
No 24-hour emergency markup. We schedule you quickly and show up when we say.
Price in writing
You approve the number before we start. No surprise charges after.
Licensed & insured
The tech who diagnoses the problem is the one who fixes it.
Reviews
Prime Build and Comfort did an excellent job replacing our A/C unit… Within a week following the call, we had a brand new A/C unit installed at a reasonable price… I would recommend Prime Build and Comfort to my loved ones and friends without hesitation.
Our boiler stopped heating properly and we called Prime Build & Comfort. They came out, inspected everything and repaired the issue quickly. What I appreciated most was that they explained what was wrong and didn't try to push unnecessary replacements. Honest company and very knowledgeable about heating systems.
Robert and team did an excellent job installing a new range hood and dryer vent. Highly professional and detailed.
Great job. I called and they came the same day and replaced my AC and furnace in one day. They even let me use a portable AC in the meantime.
Very professional, answers calls right away, punctual and they did a great job.
They did a great job! Install was fast and on schedule. Very good customer service too! I recommend them highly!
Robert and his team are knowledgeable, punctual, and keep things running smoothly on the job site. Highly recommend them.
Get a quote
We'll call you back shortly. For anything urgent, call (774) 417-0596.