"From the established mid-century neighborhoods to the tree-lined streets near Armstrong Park — Roy Adams and Flat Rate Plumbing Company bring more than 40 years of honest, upfront plumbing to Duncanville."
Duncanville, the self-proclaimed “City of Champions” just south of Dallas, is a well-established community in the Best Southwest area alongside Cedar Hill and DeSoto. Largely built out with mid-century and later homes on mature, tree-lined lots, it's a settled, family-friendly city anchored by spots like Armstrong Park and its historic downtown. Flat Rate Plumbing Company — owned and operated by Roy Adams, a Texas Master Plumber (License M-14388) serving the area since 1984 — is close by in Grand Prairie and has served Duncanville homes for more than 40 years.
Because so many Duncanville homes have been around a few decades, Roy's deep experience with older plumbing is a real advantage — he's seen the aging supply lines, worn water heaters, and dated fixtures these established homes tend to have. And because Flat Rate is owner-operated, you reach the master plumber himself when you call, and he's the one who does the work — no middleman in between.
Duncanville's established homes come with their own plumbing considerations on top of the region's shared ones. Older houses often have aging supply and drain lines and original water heaters nearing the end of their life, while North Texas's expansive clay soil shifts slab foundations and causes the slab leaks common across the area. Hard water speeds up wear on water heaters and fixtures, and the occasional hard freeze can burst outdoor lines that aren't protected against the cold.
That's why Duncanville homeowners choose Flat Rate Plumbing Company. You get a Texas Master Plumber (License M-14388) with more than 40 years of experience, upfront flat-rate pricing, and an owner who does the work himself and stands behind it. Whether it's a slab leak, an aging water heater, a drain that keeps clogging, or an everyday drip, Roy diagnoses the real problem and fixes it right — one honest price, agreed before the work starts. Call or text Roy at (972) 641-4837 to get your Duncanville plumbing sorted.
Every job is handled personally by Roy — honest work, upfront flat-rate pricing, and no middleman. Here's what Flat Rate offers across Duncanville and the surrounding communities:
Installation, replacement, and repair for gas and electric water heaters — dependable hot water, sized and done right.
Leaks found and fixed at the source — before shifting clay soil and hidden drips turn into costly damage.
Kitchen, bathroom, and utility faucets and sinks installed and repaired — no more drips or weak flow.
Running, leaking, and weak-flushing toilets repaired, plus clean, level new-toilet installations.
Clogged and slow sink and lavatory drains cleared quickly, so the water moves freely again.
Shut-off valves, outdoor hydrants, and frost-proof faucets — control and freeze protection for your home.
Real reviews from homeowners who have trusted Roy and Flat Rate Plumbing Company with their plumbing for years.
"Roy Adams has provided services for me during the past 25 years — slab leaks, water heater installation, faucet and sink installations, disposal replacement, toilet replacements, and more. He is trustworthy, reliable, and very knowledgeable in all aspects of plumbing. I have 100% confidence in Roy's work and advice."
— Clif Nelson
Grand Prairie, TX
"I rarely give five stars unless well deserved but Flat Rate Plumbing is by far the best plumbing company that I have ever hired. Flat Rate provided professional service, the plumber was extremely knowledgeable and friendly. If you are ever in need of an awesome plumbing company, please contact Flat Rate Plumbing — you will not be disappointed."
— Nefretiri
Grand Prairie, TX
"Roy has done plumbing jobs large and small on our house for 20 years. He is prompt, reliable, does great work and backs up his work always. We 'shop small' to support local contractors and businesses every chance we get, and Roy is our go-to for all plumbing needs. Highly recommend him and his work."
— Brenda Slade
Grand Prairie, TX
Locally owned and operated from Grand Prairie, Flat Rate Plumbing Company serves Duncanville and the surrounding communities with honest, upfront flat-rate plumbing.
Answers to the most common questions Duncanville-area homeowners ask before calling a plumber.
Flat Rate handles the full range of residential plumbing — water heaters, plumbing leak repair, faucets and sinks, toilets, garbage disposals, shower and tub valves, drain and stoppage clearing, shut-off valves, outdoor hydrants, and frost-proof faucets. Every job is done personally by Roy.
Yes. Roy gives you one upfront flat-rate price that covers diagnostics, labor, and parts, and you approve it before any work begins. There's no hourly meter running and no surprise charges at the end — the price you agree to is the price you pay.
You do. Flat Rate is owner-operated, so when you call you reach Roy Adams, the master plumber himself — not a call center or a dispatcher. You get straight answers from the person who will be doing the work.
They are — North Texas's expansive clay soil shifts with the seasons and stresses the pipes beneath a slab foundation, which makes slab leaks a common issue in Duncanville and across the area. Roy locates leaks and repairs them at the source, so the problem is genuinely solved.
Yes. Roy Adams is a Texas Master Plumber (License M-14388) and has been in the trade since 1984 — more than 40 years of hands-on experience serving Duncanville and the surrounding communities.
The fastest way is to call or text Roy directly at (972) 641-4837, or use the form on our contact page. Tell him what's going on and he'll get you a clear, upfront flat-rate estimate.
Based in Grand Prairie and serving the surrounding area. Click any community below to learn more about Flat Rate Plumbing there.
Call or text Roy today • Texas Master Plumber • Lic. M-14388 • Upfront Flat-Rate Pricing • Serving Duncanville & the Surrounding Communities