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Diamond Plumbing & Heating LlcHVAC contractor in Norwich, CT

Diamond Plumbing & Heating Llc is an HVAC contractor at 131 Franklin St, Norwich, CT 06360, ranked #50 of 158 HVAC contractors in Norwich and rated 3.8 from 29 Google reviews. Open Monday to Friday.

Norwich, CTUpdated 0 paid placements in any rankingHow we rank

Call (860) 889-6528Website ↗

Key facts

Key facts about Diamond Plumbing & Heating Llc
Address131 Franklin St, Norwich, CT 06360Get directions
Phone(860) 889-6528
Websitediamondplumbingandheating.net
HoursMonday to Friday: 8 AM – 4:30 PM
Google rating3.8 from 29 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category
  • Plumbingbusiness name

Service area

Serves Norwich and 11 towns within 25 miles: Preston City, Montville Center, Ledyard, Conning Towers-Nautilus Park, New London, Groton, Windham, Plainfield, Waterford, Willimantic and Pawcatuck.

Based in Norwich, CTView on map

Opening hours

Opening hours for Diamond Plumbing & Heating Llc
DayHours
Monday8 AM – 4:30 PM
Tuesday8 AM – 4:30 PM
Wednesday8 AM – 4:30 PM
Thursday8 AM – 4:30 PM
Friday8 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

Diamond Plumbing & Heating Llc compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Diamond Plumbing & Heating Llc (this business)—533.8 (29)—NoNo
Uncasville Oil#48534.5 (27)—NoNo4.9 mi
MIDKNIGHT OIL COMPANY#49534.6 (9)———9.0 mi

See all 158 ranked HVAC contractors in Norwich

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

3.8from 29 Google reviews

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Questions about Diamond Plumbing & Heating Llc

How is Diamond Plumbing & Heating Llc ranked in Norwich?

Diamond Plumbing & Heating Llc is ranked #50 of 158 HVAC contractors in Norwich by CR Score, with 53 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 Diamond Plumbing & Heating Llc’s hours?

Diamond Plumbing & Heating Llc is open Monday to Friday. Its listed hours are Monday to Friday, 8 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 Diamond Plumbing & Heating Llc serve?

Serves Norwich and 11 towns within 25 miles: Preston City, Montville Center, Ledyard, Conning Towers-Nautilus Park, New London, Groton, Windham, Plainfield, Waterford, Willimantic and Pawcatuck. 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 Diamond Plumbing & Heating Llc?

Diamond Plumbing & Heating Llc has a rating of 3.8 from 29 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 Diamond Plumbing & Heating Llc?

Call Diamond Plumbing & Heating Llc on (860) 889-6528. The business is at 131 Franklin St, Norwich, CT 06360. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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