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Mcniff plumbing & heatingHVAC contractor in Grafton, MA

Mcniff plumbing & heating is an HVAC contractor in Grafton, MA, ranked #39 of 700 HVAC contractors in Grafton and rated 5.0 from 284 Google reviews. Open Monday to Friday.

Grafton, MAUpdated 0 paid placements in any rankingHow we rank

Call (508) 523-4621Website ↗

Key facts

Key facts about Mcniff plumbing & heating
Phone(508) 523-4621
Websitemcniffplumbing.com
HoursMonday to Friday: 7:30 AM – 4:30 PM
Google rating5.0 from 284 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category
  • Plumbingbusiness name
  • Kitchen Remodeladditional Google category
  • Bathroom Remodeladditional Google category

Service area

Serves Grafton and 12 towns within 25 miles: Clinton, Northborough, Hudson, Shrewsbury, Lancaster, West Boylston, Marlborough, Sterling, Southborough, Stow, Hamilton Worcester and Harvard.

Based in Grafton, MAView on map

Opening hours

Opening hours for Mcniff plumbing & heating
DayHours
Monday7:30 AM – 4:30 PM
Tuesday7:30 AM – 4:30 PM
Wednesday7:30 AM – 4:30 PM
Thursday7:30 AM – 4:30 PM
Friday7:30 AM – 4:30 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

Mcniff plumbing & heating compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Mcniff plumbing & heating (this business)—595.0 (284)—NoNo
Reliable HVAC & Plumbing#37594.8 (76)—YesYes7.0 mi
ThermaCare Heating, Air & Electric#38594.9 (107)—YesYes20.4 mi
Gervais Plumbing Heating & Air Conditioning#40594.4 (203)—YesYes16.4 mi

See all 700 ranked HVAC contractors in Grafton

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 284 Google reviews

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Questions about Mcniff plumbing & heating

How is Mcniff plumbing & heating ranked in Grafton?

Mcniff plumbing & heating is ranked #39 of 700 HVAC contractors in Grafton by CR Score, with 59 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Mcniff plumbing & heating’s hours?

Mcniff plumbing & heating is open Monday to Friday. Its listed hours are Monday to Friday, 7:30 AM – 4:30 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Mcniff plumbing & heating serve?

Serves Grafton and 12 towns within 25 miles: Clinton, Northborough, Hudson, Shrewsbury, Lancaster, West Boylston, Marlborough, Sterling, Southborough, Stow, Hamilton Worcester and Harvard. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about Mcniff plumbing & heating?

Mcniff plumbing & heating has a rating of 5.0 from 284 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Mcniff plumbing & heating?

Call Mcniff plumbing & heating on (508) 523-4621. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.

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