3 Generation Plumbing, LLC/ Houston, Texas/ Commercial and industrial/ Third generation

Three generations of pipe, and the same name on the warranty.

3 Generation Plumbing is a commercial and industrial plumbing contractor in Houston. We install underground and site utilities, high rise risers, process and specialty piping, and medical gas for hospitals, plants, schools, data centres and towers.

A general contractor carries real risk when a plumbing sub fails mid job. It costs a rebid, a schedule and a set of warranties nobody will honour. This company is built to still be answering the phone in year ten.

Send an invitation to bid Prequalification packet

Field photograph: crew setting underground sanitary in open trench before a slab pour, Houston site

Established: Founding year
Responsible Master Plumber: RMP name and number
Single project bonding: Single limit
Experience modification rate: Current EMR

Continuity is a commercial argument

Three generations is not a story about a family. It is the reason the number you call in year eight still rings, the reason a punch list gets closed after the ribbon is cut, and the reason a warranty claim lands on a company that is still trading. Bid day price is one number. Who is left to stand behind it is another.

First generation

Name: Founder name
Years active: Start year to end year
Work: Trade focus and first market

Where the tools came from. Written short, one paragraph, no myth.

Archive photograph: founder on a job site, earliest image available

Second generation

Name: Second generation name
Years active: Start year to present or end year
Change: What the second generation added, in one line

The step from service work into contract work. Crews, licences, first commercial jobs.

III

Third generation, present

Name: Rajeev, surname and title
Assumed leadership: Year
Direction: Commercial and industrial contracts, $1M and up

The current mandate. Preconstruction, coordination and self performed work, sold to general contractors and owners rather than to homeowners.

Portrait: Rajeev on site, hard hat, no studio background

Sectors we build in

Sector fit is the first filter on any bid list. Each of these carries its own code path, its own inspection regime and its own way of losing money. We price them differently because they are different.

Healthcare and medical

Occupied hospital renovation, med gas rough and certification, ICRA barriers, above ceiling work on live floors, and phasing that keeps a department open while the wall behind it comes out.

High rise and multifamily

Stacked riser layout, booster pumps and pressure zoning, podium underground, and unit rough in run as a repeating cycle so the floors come off the crane on schedule.

Industrial and petrochemical

Process and utility piping, safety showers and eyewash stations, plant water and waste, turnaround and shutdown scopes worked to a fixed window.

Data centres

Make up water and condensate, mechanical room piping, leak detection interfaces, and sequencing that never puts an open pipe over live white space.

Education, Texas ISDs

Bond funded work on a summer calendar. Gang restrooms, kitchens, lab waste and science gas, delivered under competitive sealed proposal or job order contracting.

Hospitality

Guest room stacks, kitchen and laundry, grease waste and interceptors, and brand standard fixture packages procured to the operator's spec.

Commercial interiors

Tenant finish out on a landlord schedule. Core connections, after hours tie ins, small crews, fast turnarounds, clean closeout documents.

What we do before anyone digs

The difference between a plumber and a commercial plumbing contractor is what happens in the six months before the first trench. Preconstruction and coordination are the two capabilities a project executive is actually buying.

Lead capability, 01

Preconstruction and budgeting

We price from schematic through guaranteed maximum price and keep the number honest as the drawings develop. Conceptual budgets by system, value engineering options priced against the base rather than instead of it, long lead identification, and constructability comments returned in writing before the set is issued for construction. If a number moves, you hear why on the day it moves.

Preconstruction staff and estimating headcount

Lead capability, 02

BIM coordination and clash detection

We model our scope, sit in weekly coordination, and sign off a composite before anything is fabricated. Sleeve and hanger layout, slab penetrations, and hangers coordinated against structure and the other trades. Clash resolution is tracked to a closed list, not to a meeting. We hold coordination dates because our fabrication depends on them too.

Modelling and coordination software in use In house detailers, count

Estimating

Quantity takeoff from the model or from paper. Bid day scope letters that state plainly what is included, what is excluded and what is alternate, so the card can be levelled without a phone call.

Underground and site utilities

Site sanitary and storm, domestic water and fire line, grease interceptors, lift stations, tie ins to the city main, and coordination with the civil package so the building line matches the site plan.

Process and specialty piping

Carbon steel, stainless, copper and thermoplastic. Lab waste and acid drainage, compressed air, and pressure testing with documented results turned over as part of closeout.

Welding procedures and welder qualification records

Medical gas

Oxygen, medical air, vacuum, nitrogen and nitrous oxide. Brazed under nitrogen purge, installed to NFPA 99, verified by an independent third party and documented for the certificate of occupancy.

ASSE 6010 certified installers, count

Backflow prevention

Assembly selection and installation, commissioning, annual testing, and test reports filed with the water authority on the schedule the authority actually wants them.

Licensed backflow testers on staff

Service division

A separate crew for warranty, repair and small works, so project crews stay on the project. This is also how a building stays with us after handover, which is the point of the whole company.

Service trucks, technicians and after hours coverage

Credentials and capacity

This is the page a prequalification reviewer reads first. Every row below is a document, not a claim. Nothing is entered here until the certificate, licence or letter is in hand and current.

Prequalification summary. Full packet available on request in AIA A305 format or on the general contractor's own form.
Item	Detail required	Verified by
Legal entity	3 Generation Plumbing, LLC. State of formation, EIN, DUNS	Formation documents
Texas Responsible Master Plumber	RMP name and licence number	TSBPE record
TSBPE registration	Registration number and expiry date	TSBPE record
Licensed tradespeople	Journeyman and tradesman licences held, by class	Licence copies
Medical gas installers	ASSE 6010 certified installers, count and expiry	Certification cards
Backflow assembly testers	Licensed testers and endorsement numbers	TCEQ record
Surety	Surety company, agent and A.M. Best rating	Surety letter
Bonding, single project	Single project limit	Surety letter
Bonding, aggregate	Aggregate programme capacity and current backlog	Surety letter
General liability	Per occurrence and general aggregate limits	Certificate of insurance
Automobile liability	Combined single limit	Certificate of insurance
Umbrella or excess	Limit and underlying schedule	Certificate of insurance
Workers compensation	Statutory cover, employers liability, waiver of subrogation	Certificate of insurance
Experience modification rate	EMR for the last three policy years	Carrier letter
Recordable incident rates	TRIR and DART, last three years	OSHA 300A logs
Safety training	OSHA 30 and OSHA 10 holders, count	Training records
Site access credentials	TWIC holders for Ship Channel and port work	Credential copies
Substance abuse programme	Programme administrator and testing protocol	Programme document
Diversity certification	HUB, MBE, DBE or SBE status and certificate numbers	Certifying agency
Workforce	Field headcount, office headcount, foremen	Payroll record
Annual volume	Revenue for the last three completed years	Reviewed financials

Scroll the table sideways

If your prequalification form asks for something that is not listed here, ask for it. We would rather send one more document than miss a bid date.

Project record

Sector, scope, value, duration and a reference who will pick up the phone. These sheets are the frame. No project is entered until it is verified against a contract and the owner or general contractor has agreed to be named.

Featured record

Sector: Sector
Project: Project name and city
Owner: Owner
General contractor: General contractor
Delivery method: Hard bid, CMAR, design build or CSP
Contract value: Value of our scope
Duration: Start and completion
Scope: Systems installed, in one sentence
Reference: Name, role, phone

The featured sheet should be the job that proves the sector you most want to win in. Pick it deliberately.

Field photograph: crew on a high rise riser install, shot looking up the shaft

Record

Sector: Sector
Project: Project name and city
General contractor: General contractor
Contract value: Value of our scope
Duration: Months on site
Scope: Systems installed

Record

Sector: Sector
Project: Project name and city
General contractor: General contractor
Contract value: Value of our scope
Duration: Months on site
Scope: Systems installed

Record

Sector: Sector
Project: Project name and city
General contractor: General contractor
Contract value: Value of our scope
Duration: Months on site
Scope: Systems installed

Current backlog

Work in progress: Contracted value under way
Largest active job: Value and sector
Available capacity: Crews available and earliest start

Backlog and available capacity belong on the page. A project executive is asking whether you can actually take the work, not only whether you have done it before.

The ground in Houston moves. The water is hard. The buildings cannot close. Everything we detail starts there.

3 Generation Plumbing, on building in Harris County

The Houston argument

Gulf Coast construction punishes details that would pass anywhere else. A contractor who has only worked here knows this in their hands. It shows up in the shop drawings long before it shows up in a callback.

Ground that moves

Houston sits on expansive clay. It swells when it rains and shrinks when it does not, and it takes underground pipe with it. We detail for movement rather than hoping against it. Flexible connections at the building line, sleeves and clearance where pipe crosses from soil to slab, bedding and compaction that gets tested rather than assumed, and cleanouts placed where a camera can still reach them in fifteen years.

Water that arrives

Between Harris County Flood Control mapping and the FEMA revisions that followed Harvey, elevation drives design. Backwater valves where the sanitary tie in sits below the rim of the upstream manhole, sump and ejector sizing that assumes the pump runs, and equipment set above the design flood elevation. The flood plan gets built into the piping, not bolted on beside it.

Wind, and the day after

Hurricane season sets the standard for anything exposed or on a roof. Roof drain and overflow capacity checked against a real Gulf rain event rather than the bare minimum, restraint on domestic and emergency systems, and isolation that lets a facility team shut one wing without killing the building. A hospital has to come back before the power does.

Hard water

Houston water runs hard. It scales heat exchangers, tankless units and fixture trim, and it turns a maintenance budget into a replacement budget inside a few years. Treatment and softening get specified up front and sized to the real load, and the service division is set up to keep them running after handover.

Where the work is, 01

Texas Medical Center

The densest concentration of healthcare construction in the country, and the least forgiving. Occupied floors, infection control, medical gas certification, and phasing plans that get reviewed harder than the drawings.

Where the work is, 02

Energy Corridor

Corporate campuses, high rise offices and the tenant work inside them, all sitting in a floodplain that has already been rewritten once. Elevation and resilience are commercial conversations here, not technical footnotes.

Where the work is, 03

Ship Channel and east Harris County

Plants, terminals and industrial support buildings. Credentialed access, safety programmes that get audited before you get through the gate, turnaround windows measured in days, and process piping that has to hold a documented test.

Prequalification and invitation to bid

If you are levelling a plumbing card and want another number on it, this is the fastest way in. We confirm intent to bid in writing so nobody is waiting on bid day.

For estimators and project executives

Send an invitation to bid

Send the ITB to the estimating address below. Include the items on this list and you will get a confirmation of intent, a named estimator and a bid day contact number.

Project name, location and bid date with time
Plan room link or drawing and specification set, with all addenda
Scope of work sought, and the division and section numbers
Delivery method and whether the sub bid is bonded
Owner and general contractor, and any prequalification form required
Schedule milestones, phasing and any liquidated damages
Wage determination or project labour agreement if one applies

Response time commitment on an ITB, in business hours

For prequalification reviewers

Request the packet

Returned on your own form, or in AIA A305 format if you do not have one. The packet contains:

Reviewed financial statements and a bank reference
Surety letter stating single and aggregate capacity
Certificate of insurance with the limits and endorsements you require
Safety programme, EMR letter and three years of OSHA 300A logs
Licence copies, RMP and TSBPE registration
Project references with contact names and current phone numbers
Organisation chart, key personnel resumes and equipment list
W-9, certificate of formation and any diversity certification

Turnaround time on a completed prequal packet

Estimating: Estimating email address Estimating direct line
Principal contact: Rajeev, title Direct email and mobile
Office: Street address, Houston, Texas, ZIP Main line and office hours
Coverage: Counties and radius served Out of area terms

Service and small works

Repair, warranty and small works are handled by the service division, on a separate line, with a separate dispatch. Facility managers and property teams should use this path. Emergency calls are triaged by building type, so a hospital or a plant is not queued behind a retail unit.

Service dispatch number Service email After hours and weekend coverage

Open

What we need to finish this page

Every dotted field on this page is listed below, grouped by who holds the answer. Nothing goes live until these are filled with verified information.

From Rajeev

Founding year and the three generation names and dates
Field and office headcount, foremen, detailers
Four to six project records with values and durations
Current backlog and available capacity
Modelling and estimating software in use
Service coverage, dispatch and after hours terms
Office address, phone numbers and email addresses

From the licence record

Responsible Master Plumber name and number
TSBPE company registration and expiry
Journeyman and tradesman licences by class
Backflow tester endorsements
ASSE 6010 medical gas certifications

From the surety agent

Surety company, agent and A.M. Best rating
Single project bonding limit
Aggregate programme capacity

From the insurance broker

General liability, per occurrence and aggregate
Automobile and umbrella limits
Workers compensation and waiver of subrogation
EMR letter, last three policy years

From the safety manager

TRIR and DART, last three years
OSHA 30 and OSHA 10 holders
TWIC credentialed personnel
Substance abuse programme administrator

From a photographer

Underground sanitary in open trench, before pour
High rise riser install, shot up the shaft
Archive image of the founder on site
Portrait of Rajeev on site, no studio
Two or three detail shots, welds and pipe racks