Comfort, engineered
for the Gulf Coast.
Built on
sweat, copper,
and honest quotes.
Mark-1 Plumbing Inc started in 2009 with one truck, a pipe wrench, and a simple rule — tell the customer the truth before you turn the wrench. Fifteen years later we run a full plumbing and HVAC crew across Galveston County, and the rule hasn't changed.
Our technicians are factory-trained on Rheem, Carrier, Bradford White, and Navien. We pull permits, we pass inspection the first time, and we don't disappear after the install. Every repair comes with a written diagnosis and a flat-rate price before any work begins — no surprise line items, no overtime games.
Whether it's a July AC outage on the Strand or a January furnace failure in La Marque, we answer the phone and we show up. That's the whole pitch.
Flat-rate
pricing, written
before we start.
No hourly guessing. Every job gets a written quote after diagnosis — you approve the price, then we do the work. Prices below are typical starting points for standard residential installs in the Texas City area.
(80% AFUE, 80k BTU)
(3-ton, 16 SEER)
(Whole-home gas)
& Repair
(Diagnostic + Fix)
(50-gal tank, gas)
(Main line, hydro-jet)
(Plumbing + HVAC)
Burst pipe at 2am?
Furnace out on Christmas?
Our on-call crew answers the phone live, every hour, every day. Typical arrival under 90 minutes inside the Texas City beltway.
The difference is in how we show up.
Upfront pricing, every time.
We diagnose, then we hand you a written flat-rate quote. You approve the number before a single bolt is turned. No hourly clock, no "we found more" surprises, no overtime multipliers after 5pm. The price on the paper is the price on the invoice — period.
Licensed & insured in Texas.
TACL #B12480C, plumbing license M-39217. We pull permits and pass inspection the first time, on every job that requires one.
On-time, every time.
If we say 9am, we're on your porch at 8:55. Live dispatch texts you a 30-minute arrival window and the technician's name.
2-year workmanship warranty.
Double the industry standard. If our repair fails, we fix it free — no questions, no fine print.
Clean shoe covers, clean job.
Drop cloths, shoe covers, and a vacuum pass before we leave. Your kitchen looks better than we found it.
Written diagnosis on every visit.
Photos, pressure readings, model numbers, and a plain-English summary — emailed before we leave the driveway.
A look at the
trucks we run.
From a condenser swap in Bayou Vista to a re-pipe in La Marque — every job is documented, permitted, and warrantied.
Let's get your
house back to
comfortable.
Call the dispatch line any hour, or send the form and we'll be back to you within one business day. For after-hours emergencies, the phone is always faster.