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Commercial plumber servicing a restaurant kitchen drain line on Frederick Road in Catonsville, MD

MHIC #117712 · Licensed & insured

Commercial & Small Business Plumbing in Catonsville, MD

Restaurants, offices, salons, retail and rental property along Frederick Road and beyond — with a response time that respects the fact you are losing money.

  • 9 five-star reviews
  • 40+ years experience
  • Licensed & insured · MHIC #117712
  • 9

    Five-star Google reviews

    Verified, not bought

  • 40+

    Years of experience

    Family owned and operated

  • 24/7

    Emergency service

    A plumber answers, not a service

  • MHIC

    Licensed #117712

    Fully insured, permits pulled

  • Free

    Hard water testing

    On every service call

When a plumbing problem hits a business, the repair bill is rarely the biggest cost. A restaurant that cannot use its three-compartment sink is closed. A salon without hot water is cancelling appointments. An office with a backed-up restroom is sending people home. Every hour matters differently than it does at a house.

We work with small businesses across Catonsville and the surrounding Baltimore County commercial corridors — the Frederick Road strip, the shops along Baltimore National Pike, offices near the Beltway, and the rental property owners who need one plumber who knows all their buildings.

What we bring is the same thing our residential customers get, applied to a faster clock: honest diagnosis, a price before the work, permitted installations, and someone who answers the phone. We are a family business, so you deal with the same people every time rather than a new tech and a new explanation on every visit.

Signs you need commercial plumbing

  • Kitchen or floor drains backing up during service hours
  • Grease trap overflowing, odorous, or overdue for service
  • Restroom fixtures failing or running continuously
  • No hot water at a sink required for health code compliance
  • A backflow preventer due for its annual test
  • Water heater undersized for actual peak demand
  • A tenant complaint that keeps recurring in the same unit
  • Fit-out or renovation requiring permitted plumbing rough-in

For businesses under health department requirements, a plumbing failure can become a compliance problem quickly. Tell us that when you call — it changes how we prioritize the job.

What the job includes

Emergency commercial response

Backups, leaks and hot water failures during and outside business hours, prioritized for operations that cannot trade without them.

Restaurant and food service plumbing

Grease-loaded kitchen lines, three-compartment sinks, prep sinks, floor drains, dishwasher connections and grease trap service. Kitchen drains need jetting, not just cabling, and we come equipped for that.

Backflow prevention testing and repair

Annual testing, repair and replacement of backflow assemblies, with the documentation your jurisdiction requires.

Commercial water heaters

Sizing for real peak demand rather than square footage, plus recirculation systems where hot water has to arrive quickly at distant fixtures.

Restroom fixtures and repairs

Flushometers, sensor faucets, commercial-grade fixtures and ADA-compliant installations, sourced from the parts that actually hold up under public use.

Rental and multi-unit property service

One plumber who learns your buildings, coordinates with tenants, and gives you a straight answer about whether a recurring complaint is a fixture problem or a building problem.

Hydro jetting a restaurant kitchen drain line in Catonsville, MD
Commercial & Small Business Plumbing in progress on a Catonsville home.

How we work

  1. 1. Understand the operational impact

    What is down, what that stops, and when you need to be trading again. That determines whether the right answer is a fast temporary fix now and a permanent repair after close.

  2. 2. Diagnose and price before work

    Written scope and price before anything starts, including what happens if we open a wall and find something else. No open-ended time and materials on a business that needs to budget.

  3. 3. Work around your hours where possible

    For anything that is not an emergency we will schedule outside trading hours. That is normal for us, not a favor.

  4. 4. Permitted and compliant

    Commercial work carries stricter requirements. We pull the permits, meet inspectors and provide documentation you can hand to a health inspector or a landlord.

  5. 5. Preventive plan afterward

    Most commercial emergencies are predictable. Scheduled jetting on a restaurant kitchen line, annual backflow testing and water heater service cost a fraction of an unplanned closure.

What drives the price

We do not publish fake prices, because a number that does not match your house is worse than no number at all. What we can do is tell you exactly what moves the figure, so nothing on the estimate is a surprise.

Urgency and hours

Same-day and after-hours work carries a different rate than scheduled service. We will always tell you what waiting until tomorrow morning would save.

Fixture and equipment grade

Commercial-grade fixtures cost more than residential and last far longer under public use. Fitting residential parts in a commercial restroom is a false economy we will talk you out of.

Compliance and documentation

Permits, inspections, backflow test reports and health department documentation are real work and appear as their own line items.

Access and building constraints

Shared walls, tenant coordination, ceiling access in a leased space and landlord approvals all affect schedule and cost.

Scheduled maintenance versus reactive

A jetting contract on a busy kitchen line is cheaper per year than two emergency call-outs and one lost service. We will price both so you can compare.

What this looks like in Catonsville

Backflow prevention assembly being tested at a Catonsville, MD business
What commercial plumbing actually looks like on a Catonsville job.

The commercial buildings along Frederick Road are, in many cases, as old as the houses around them — converted storefronts and mixed-use structures with plumbing that was designed for a very different tenant. A restaurant operating in a building originally plumbed for retail frequently has drainage that is undersized for a commercial kitchen, and that shows up as a line that backs up every few months no matter how carefully the staff work.

Grease is the defining commercial problem in this area. Cast iron drainage plus grease plus Catonsville hard water builds a deposit that cabling barely touches. For food service clients we recommend a scheduled jetting interval — it is not an upsell, it is the difference between planned maintenance and an unplanned closure on a Friday night.

Mixed-use properties bring shared-system complications. In converted buildings along the Frederick Road corridor and near the UMBC area, upstairs apartments and ground-floor businesses often share drainage and sometimes share water heating. Diagnosing a recurring complaint in one unit frequently means understanding the whole building, and we would rather look at that once than return four times.

For property owners with multiple buildings across Baltimore and Howard County, the value of a single family-run plumber is continuity. We remember which building has the undersized main, which one has the temperamental ejector pump, and which tenant calls about everything. That knowledge saves you money on every subsequent visit.

Commercial Plumbing questions we get asked

How quickly can you get to a commercial emergency?

Tell us the operational impact when you call and we will give you an honest ETA on the spot. A restaurant that cannot serve is a different priority from an office with one restroom out of three, and we schedule accordingly rather than treating every call the same.

Do you offer scheduled maintenance for restaurants?

Yes, and for a grease-loaded kitchen line it is the single best money you can spend. A jetting interval set to your actual volume prevents the backups that close a kitchen. We will set the interval based on what your line looks like on camera, not on a generic package.

Can you handle backflow testing and certification?

Yes. We test, repair and replace backflow prevention assemblies and provide the documentation your jurisdiction requires. We will also track your annual due date so it does not lapse.

Do you work with landlords and property managers?

Regularly. We coordinate access with tenants, provide itemized documentation for each unit, and give owners a straight assessment of whether a recurring problem is a fixture issue or a building issue worth fixing once.

What our neighbors say

9 five-star reviews from Catonsville and around it

Real Google reviews, quoted as published. Not every one is about this exact job — they are about how the work gets done, which is the part that transfers.

5.0
from 9 verified Google reviewsRead them on Google →
  • I had an outstanding experience with Collins & Sons LLC. Daniel has done several projects at my home over the last 4 years. He has helped me with small projects (replacing a garbage disposal), large projects (renovating my patio) and random projects. No matter the scope or size of the project, he treats his work and customers the same — with utmost professionalism, respect, and courtesy. With Daniel, you will be collaborating with a contractor who is a good guy, focused on customer service and not hustling to get more money. I highly recommend him for any contracting needs.

    Cece Morris

    Repeat customer — repairs & renovation · Google review

  • Needed a water heater and my upstairs plumbing replaced. After contacting them they were very flexible to my schedule, also explaining in detail costs and procedures. Who doesn't like an honest family owned professional? I would use them again any time and definitely recommend them.

    john kibler

    Water heater & upstairs re-plumb · Google review

  • Danny is a very professional and friendly person to work with. His work as a plumber and contractor is outstanding. He receives a high rating as he cleans up after he finishes working. I highly recommend this company and Danny to work on any project for you. He will be back doing more work at my home. Great job!

    Cynthia

    General plumbing & contracting · Google review

  • Danny replaced my bathroom exhaust fan recently and I'm SO HAPPY! He went to Home Depot with me and explained the replacement options and I'm happy with what we chose. He also took a look at my sump pump while he was here and performed some simple magic that seems to have stopped my basement from flooding after every heavy rain. He's an invaluable resource. Thanks Collins and Sons!

    Kate Na

    Exhaust fan & sump pump · Google review

You might also need

Related plumbing services

These come up alongside this job often enough that it is worth knowing what they involve before you need them.

Drain Cleaning

We clear the clog, then camera the line to show you what caused it — because in an older Catonsville home a slow drain is rarely just hair and soap.

Learn more

Water Heater Repair & Installation

Repairs on every brand, tank or tankless — plus a free hard water test, because Catonsville water is why most heaters here die early.

Learn more

Emergency Plumbing

Burst pipes, sewer backups and dead water heaters do not wait for business hours. Neither do we — a real plumber answers, day or night.

Learn more

Further reading

Guides that go deeper on this

Written for homeowners, not for search engines. Several of them will save you a service call.

Commercial & Small Business Plumbing in Catonsville — get a straight answer today

Forty years, one family, and a phone that gets answered. Tell us what is happening and we will tell you honestly what it will take to fix it.

  • 9 five-star Google reviews
  • 40+ years, family owned
  • Licensed & insured · MHIC #117712
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