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Commercial Plumbing in Hartford, CT

Commercial Plumbing in Greater Hartford

Commercial plumbing covers the systems that keep offices, restaurants, retail spaces, apartment buildings, and industrial sites running: grease traps and backflow prevention, multi-fixture restrooms, boiler and water heater systems sized for heavy use, sewer and drain lines under parking lots, and the code compliance that comes with all of it. It's a different trade than home plumbing in practice, since commercial jobs usually involve larger pipe diameters, higher pressure systems, permits, and inspections tied to occupancy and health codes. We've identified 20 businesses in Hartford doing this kind of work, ranging from small crews handling tenant buildouts to larger outfits that service hospitals, schools, and manufacturing plants.

What to look for before hiring

Ask whether the contractor is licensed for commercial work specifically (not just residential), carries adequate liability insurance for the property type, and has handled buildings similar in size and use to yours. Backflow testing and grease trap maintenance often require certifications beyond a standard plumbing license. Get a clear scope of work and a timeline that accounts for after-hours work if your business can't shut down during business hours.

How we score these companies

Our rankings weigh licensing and insurance, verified reviews, response time, breadth of commercial services offered, and how consistently a company shows up across jobs of different sizes. See the full ranked guide to Hartford plumbers for our top picks, and check our methodology for exactly how we score and verify each listing.

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All commercial plumbing in Hartford, CT, ranked by score and relevance

8 businesses, scored on recent reviews. The order weighs each business's overall score by how much of its reviewed work is commercial plumbing, so a lower-scored specialist can rank above a higher-scored generalist.

Roto-Rooter Plumbing & Water Cleanup
#1
87

Roto-Rooter Plumbing & Water Cleanup

4.8(1268)✓ Google-verified

Most jobs run smoothly with named technicians like Franklin and Jordan, who diagnose problems quickly, explain options clearly, and deliver efficient repairs on faucets, drains, and leaks. Pricing stands out as the main friction point: a $99 diagnostic fee plus $500 for faucet work prompted one reviewer to recommend shopping around, though the same crew earned consistent praise for technical skill and courteous follow-up. Service quality varies slightly by technician assignment. Franklin appears regularly in praise for leak repairs and drain work, taking time to walk customers through solutions. One poor experience with a dismissive technician and unhelpful management undermines the otherwise strong track record, suggesting consistency issues at the team or dispatch level.

Emergency PlumbingLeak Detection & Pipe RepairGas Line Services
Macca Plumbing & Heating
#2
81

Macca Plumbing & Heating

4.7(49)✓ Google-verified

Reviewers consistently report that Macca's technicians arrive quickly, explain work clearly, and charge fairly. Named staff members (Max, Sean, Jacob, Liam, Bob) deliver expert service across gas line, water heater, and furnace jobs, leaving work areas clean. The business excels at urgent calls and complex installs. Specific complaints center on requiring property owner presence for rental work and isolated instances of poor phone etiquette. Long-standing reputation supports reliability.

Emergency PlumbingGas Line ServicesWater Heater Installation & Repair
Crest Mechanical Services Inc
#3
62 low data

Crest Mechanical Services Inc

4.3(14)

Most reviewers describe prompt, skilled work from experienced staff. One serious complaint about a technician's threatening behavior stands out; most other feedback is brief praise without detail.

Emergency PlumbingGas Line ServicesFurnace Repair Service
Allpoints Plumbing, LLC
#4
55 low data

Allpoints Plumbing, LLC

3.7(6)✓ Google-verified

One five-star review praised professional service and honest pricing, but two recent one-star reviews detail a technician who walked off a job without explanation and staff who drove recklessly. The office failed to follow up on the abandoned service call.

Emergency PlumbingCommercial Plumbing
M S Plumbing Solutions
#5
49 low data

M S Plumbing Solutions

3.0(4)

Recent experience starkly contradicts earlier praise: a one-star review documents failed tankless water heater installation (twice), botched toilet wax ring work, rude communication from owner Matt, and refusal to correct errors. An eight-year-old five-star review notes good work, but current evidence suggests significant quality and professionalism decline.

Emergency PlumbingCommercial Plumbing

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MCM Plumbing
#6
47 low data

MCM Plumbing

5.0(3)

Not enough recent reviews yet to synthesise a reliable sentiment read for this business.

Emergency PlumbingWater Heater Installation & RepairFurnace Repair Service
Kennedy's Plumbing and Heating
#7
47 low data

Kennedy's Plumbing and Heating

3.2(36)✓ Google-verified

Kennedy's Plumbing and Heating has a sharp split: some customers praise fast emergency response and skilled install work, especially for furnace replacement and oil-to-gas conversion, with office manager Marie credited for finding financing options. Others report rude phone service, steep fees ($79-350 for basic work), equipment breakdowns shortly after installation, and disputes over charges. The rating (3.2/5) reflects this polarization.

Emergency PlumbingFurnace Repair ServiceWater Heater Installation & Repair
On Call Plumbers
#8
25 low data

On Call Plumbers

No rating yet

Review evidence for On Call Plumbers is limited. Their website claims service across Hartford and eight surrounding towns, including emergency plumbing, leak detection, water heaters, and septic work.

Emergency PlumbingDrain Cleaning & Sewer ServiceLeak Detection & Pipe Repair

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Common questions about commercial plumbing

How much does commercial plumbing work typically cost in Hartford?
Costs vary widely by scope. Simple repairs or fixture replacements might run a few hundred dollars, while grease trap installs, backflow device replacement, or multi-bathroom retrofits can run into the thousands. Most commercial plumbers charge higher hourly rates than residential work because of the licensing, insurance, and equipment involved, so get itemized quotes rather than relying on a flat estimate over the phone.
How often does a commercial building need plumbing maintenance?
Backflow preventers typically need annual testing to stay compliant with local code. Grease traps for restaurants usually need pumping every one to three months depending on volume. Water heaters and boilers benefit from annual inspections. Beyond scheduled maintenance, older buildings or high-traffic spaces (restaurants, gyms, medical offices) tend to need more frequent attention to drains and fixtures.
What should I expect during a commercial plumbing project?
Expect an initial walkthrough and written estimate, a discussion of whether permits are needed, and scheduling around your operating hours if the work affects customer-facing areas. For larger jobs like repiping or new construction, expect inspections at various stages. A reliable contractor will communicate delays and unexpected issues (like discovering outdated piping) before proceeding rather than after the fact.
How can I judge the quality of a commercial plumbing company?
Check for state licensing specific to commercial work, ask for references from similar properties (not just homeowners), and confirm they carry insurance that covers commercial liability. Companies that offer emergency response and ongoing maintenance contracts, rather than one-off jobs only, tend to be better equipped to handle the demands of a business property.

Last updated 2026-07-20