03Est. $3,800 - $7,500
Tankless Water Heater Installation
Wall-hung units sized by flow rate, with the gas line and vent worked out up front.
116 acresSize of the master-planned development (117 in some sources)Wikipedia
1,500+Residential units in the published planWikipedia
500 roomsPlanned resort, run by Destination Hotels by HyattWikipedia
1,000 slipsPlanned marina capacityWikipedia
3.6 milesStraight-line distance from our shop to Sapphire BayOpenStreetMap, our calculation
Short answer
Water heater installation in Sapphire Bay, the roughly 116-acre lakefront project at Interstate 30 and Dalrock Road, is mostly about sizing and upgrades in new homes. Plans call for 1,500+ residential units, and a Bombshells restaurant opened there in June 2026, but the build-out is not finished. We install residential heaters, not commercial or hotel systems.
01The project
What Sapphire Bay Is, in the Plan's Own Numbers
Sapphire Bay is a master-planned, mixed-use development on the Lake Ray Hubbard shore at Interstate 30 and Dalrock Road, on land once known as Bayside South. Wikipedia's account of the 2019 plan, published by Sapphire Bay Development, LLC and the City of Rowlett, gives the scale: 116 acres, a 500-room resort run by Destination Hotels by Hyatt, a surf village and water park, 1,500 or more residential units, 1.7 million square feet of mixed use, more than 20 acres of parks and trails, and a 1,000-slip marina.
Other sources give slightly different figures: 117 acres, 1.4 million square feet in an earlier plan, and 1,005 boat slips. That is a sign of a plan that has been revised, and the safe reading is that the numbers are targets. A Bombshells restaurant opened in June 2026 with more than 140 jobs, according to Trade & Industry Development, so the project has places that are open and places still to come.
| Element | Planned |
|---|---|
| Site | About 116 acres |
| Homes | 1,500+ residential units |
| Resort | 500 rooms, Destination Hotels by Hyatt |
| Mixed use | 1.7 million sq ft |
| Parks and trails | 20+ acres |
| Marina | 1,000 slips |
02What we do and don't
Residential Heaters Only
We install water heaters in homes. A resort of 500 rooms, a restaurant or a marina has commercial hot water systems, with commercial codes and equipment, and that isn't our work. What we can do at Sapphire Bay is the homes: the single-family and townhome-style houses where a household needs a tank or a tankless unit chosen, sized and fitted.
It is better to say so plainly than to leave a page that sounds as if we serve the whole development. If your house is part of the residential phases, the rest of this page applies.
03New homes
A New Home's Heater: Sizing and Upgrades, Not Age
A heater in a new home is young, so the usual replacement questions don't apply. The U.S. Department of Energy gives a storage tank 10 to 15 years, so a heater installed in 2025 or 2026 has most of its life ahead. The questions that do come up are capacity, space and the type.
Builders choose a heater to a budget and a plan, and a household's use can outgrow it. The usual calls from new homes are for a bigger tank or a tankless unit where showers run at once, for a second heater serving a far bathroom, or for a hybrid in an all-electric home. A tank is estimated at $1,400 to $3,800 installed, and a tankless conversion at $3,800 to $7,500. See the new construction page for sizing against published plans, and check the maker's warranty registration before replacing anything that is still young.
Need Water Heater Installation in Sapphire Bay?
Tell us the home's size and where the heater sits and you get an estimated range on the call.
04The lake
The Lake Is Not Your Tap Water
It is easy to assume lakefront homes drink from the lake. Lake Ray Hubbard covers 22,745 acres, holds 490,000 acre-feet, and is owned by the City of Dallas and managed by Dallas Water Utilities. Rowlett's tap water comes from the North Texas Municipal Water District, which describes it as moderately hard because of minerals in Lavon Lake. A Sapphire Bay home therefore has the same water as the rest of the city.
That matters for a heater. NTMWD's tables show 183 mg/L total hardness in January 2015 and 122 to 160 mg/L in sampled months of 2022 and 2023, about 7.1 to 9.3 grains per gallon. A new tank in Sapphire Bay will scale like any other, and a yearly flush starting in the first year is the habit that keeps it near the long end of its life.
05Neighbors
What's Around Sapphire Bay, and How Far
Sapphire Bay sits at the south end of Rowlett's lake shore. The nearest places we cover are the Vineyards, Paddle Point Park and Lake Shore Village, each within about a mile in a straight line.
| Place | Miles from Sapphire Bay |
|---|---|
| Vineyards | 0.8 |
| Paddle Point Park | 1.0 |
| Lake Shore Village | 1.1 |
| Lake Park | 1.5 |
| Pecan Grove Park | 2.0 |
| Our shop, 5311 Boyd Blvd | 3.6 |
06Weather
Lakefront Wind, Freezes and 100-Degree Days
A lakefront house is open to wind, and Texas Parks and Wildlife warns that strong wind can make paddling on Lake Ray Hubbard hard. For a heater that means mainly the vent. A gas tank's flue needs clearance and a sound termination, and a tankless unit's vent run is measured against the maker's limits. DFW Airport's normals count 29.2 days a year at or below 32 degrees and 20.2 at or above 100, so a garage heater on an outside wall needs its supply lines insulated.
07Fuel
Gas or Electric in a New Build
In Rowlett, gas is delivered by Atmos Energy and electricity by Oncor, and a new home may be built all-electric or with gas to the heater. Gas is about 48% of U.S. main water heating fuel and electricity about 46%, per the EIA. If your home is all-electric, ENERGY STAR's table for a four-person household shows a heat pump heater saving $550 a year against a standard electric tank, with a 2.7-year payback on $1,503 of extra cost. The hybrid page explains what it needs.
08Rules
Permits and the Builder's Warranty
Texas requires plumbing done for customers to be by a plumber licensed through the State Board of Plumbing Examiners. We confirm what the City of Rowlett requires for each job and show any permit as its own line. If a builder's warranty is still active, we check it before touching the heater, because a replacement can change coverage on the old unit.
09Services
All servicesRelated Water Heater Services
04Est. $3,000 - $5,500
Hybrid Heat Pump Water Heater Installation
Electric tanks that pull heat from the air, with the condensate drain planned in.
12Est. $1,400 - $3,800
New Construction Water Heater Installation
Installs and upgrades for new Rowlett builds, from Lake Park to Sapphire Bay.
10Nearby
All areasNearby Rowlett Areas
11Guides
All guidesGuides That Go Deeper
What Size Water Heater Do You Need?
How to size a water heater for your household, from 40 to 80 gallon tanks to a tankless unit's flow rate, and why the old tank's size is not a rule.
Read the guideHybrid Heat Pump Water Heaters: Are They Worth It in Texas?
A hybrid heat pump water heater costs more to install and less to run. See where it fits in North Texas homes, what it needs and who should skip it.
Read the guideTank vs Tankless Water Heater: Which Is Right for Your Rowlett Home?
A plain comparison of tank, tankless and hybrid water heaters for Rowlett homes: cost, space, hot water supply, upkeep and who each one suits.
Read the guide12FAQ
Questions People Ask About This
Question not here?
Call and ask. A straight answer and an estimated range on the call, before anybody drives over.
Call (972) 472-8210What is Sapphire Bay in Rowlett?
A master-planned mixed-use development of about 116 acres on the Lake Ray Hubbard shore at Interstate 30 and Dalrock Road, on the former Bayside South land.
How many homes are planned at Sapphire Bay?
The published plan calls for 1,500 or more residential units, alongside a 500-room resort, 1.7 million square feet of mixed use and a 1,000-slip marina. Some sources differ, and the build-out isn't finished.
Is Sapphire Bay finished?
No. A Bombshells restaurant opened in June 2026, but the plan is still being built out, and figures differ between sources.
Do you service the resort or restaurants at Sapphire Bay?
No. We install residential water heaters. Commercial and hotel systems have their own codes and equipment, and aren't our work.
How much does water heater installation cost in Sapphire Bay?
A tank is estimated at $1,400 to $3,800 installed, and a tankless or hybrid upgrade costs more. The written quote lists each line.
Why would I replace a heater in a new Sapphire Bay home?
Usually for capacity or space, not age. A builder's tank can be too small for a household, and a far bathroom may want a second heater or a tankless unit.
Is the tap water in Sapphire Bay from the lake?
No. Lake Ray Hubbard is owned by Dallas. Rowlett's water comes from the North Texas Municipal Water District, which calls it moderately hard.
What does hard water mean for a new tank?
NTMWD's sampled hardness was 122 to 160 mg/L in 2022 and 2023, about 7.1 to 9.3 grains per gallon. A yearly flush from the first year keeps a new tank toward the long end of its 10 to 15 year range.
Should I choose a hybrid heat pump heater in an all-electric home?
ENERGY STAR shows $550 a year saved for four people against a standard electric tank, with a 2.7-year payback. It needs open air and a drain, so it suits a garage better than a closet.
How far is your shop from Sapphire Bay?
About 3.6 miles in a straight line from 5311 Boyd Boulevard. Driving is a little longer.
Does a builder's warranty affect replacing the heater?
It can. Check the registration and terms before replacing a young unit, and consider adding capacity instead of removing a working heater.
Do I need a permit for a heater in a new home?
Texas cities set their own permit rules, so we confirm what Rowlett requires. Any permit is its own line on the quote.
13Sources
Where the Numbers on This Page Come From
Numbers on this page come from the sources below, retrieved October 2026, or from our own estimated price ranges. Where sources disagree or a figure could not be confirmed, the page says so. Distances are straight-line miles.
- Rowlett, Texas (Wikipedia)history, 2020 census, schools, Sapphire Bay plans
- Trade & Industry Development: Bombshells opens at Sapphire BayJune 2026 opening, jobs
- Lake Ray Hubbard (Wikipedia)lake size, dam, bridges
- U.S. DOE Energy Saver: storage water heaters10 to 15 year life
- NTMWD: Protecting Our Drinking Watermoderately hard water, 17.12 conversion
- NTMWD monthly water analysis tables, Wylie treated water, 2015 and 2022-2023total hardness in mg/L; sample months only
- Texas Parks and Wildlife: Paddle Point Creek Paddling Trailtrail length, access, wind note
- NWS Fort Worth: DFW normals, means and extremes, 1991-2020temperatures, 100-degree and freeze days
- U.S. EIA: 2020 Residential Energy Consumption Survey, water heatingnational fuel split
- ENERGY STAR: Heat pump water heater benefits and savings$550 a year, 2.7-year payback table
- Texas State Board of Plumbing Examinerslicense lookup
- OpenStreetMap geocodes (Nominatim), used to compute straight-line distancesdistances in this site are great-circle miles, so driving distance is longer
- Ray Hubbard Water Heaters: our own estimated price rangesestimates, not quotes; the written quote is the price
14Next step
Book Your Sapphire Bay Water Heater Install
For water heater installation in Sapphire Bay, call (972) 472-8210 with the home's size and where the heater sits. You get an estimated range on the call, a written quote before any work, and hot water tested at the tap before we leave.