
Fontana Pool Builders: Custom Pool Design, Gunite Construction & Remodeling
Custom-designed gunite pools, pebble resurfacing, spa additions, and full remodels across the Inland Empire. Free 3D design, cobble excavation quoted honestly.
- ✓C-53 Licensed & Insured
- ✓15+ Years in the Inland Empire
- ✓Free 3D Pool Design
- ✓Se Habla Español
Why Fontana Chooses Fontana Pool Builders
- ✓Over 15 years designing and building pools across the Inland Empire
- ✓C-53 Swimming Pool and Spa Contractor licensing, CSLB regulated
- ✓3D design first, so you walk the pool before anyone breaks ground
- ✓Cobble and alluvial excavation quoted as an honest range, not billed later
- ✓Designed for 105-degree summers: shade, deck temperature and lounging depth
- ✓Title 20 compliant variable-speed equipment on every build
- ✓Pool Safety Act features designed in, not bolted on before inspection
- ✓Se habla español
How It Works
1. Design & firm quote
We measure the yard, check City of Fontana setbacks and sun angles, and design your pool in 3D so you see it before anyone digs. The quote is itemized down to the tile, with a real range for cobble excavation.
2. Permits, layout & excavation
We pull the permits, mark utilities, and dig. Alluvial cobble from the Lytle Creek wash means breaker work and haul-off on some lots, and you hear about that before you sign rather than after.
3. Steel, shotcrete, tile & finish
Rebar cage, plumbing, shotcrete shell, roughly a 28-day cure window, then tile, coping, decking, equipment, and the interior finish. Same in-house crew from the dig through plaster startup.
4. Startup, safety sign-off & handover
We fill it, brush daily through plaster startup, balance chemistry against hard Inland Empire water, confirm your two Pool Safety Act features for final inspection, and walk you through the automation.
The Pool Work Fontana Calls Us For

Gunite & Shotcrete Pool Construction
Gunite pool construction in Fontana begins with a dig nobody can fully price off a drawing, because the ground under most of this city is Lytle Creek wash material: sand, gravel and rounded cobble that can turn into boulders a standard excavator will not lift. We write rock and export as unit-price line items rather than burying a guess in the base bid, so if the hole comes out clean you keep the money and if it does not you already know the rate.

Pool Remodeling & Renovation
Pool remodeling in Fontana is usually a question about a pool built between 1965 and 1990, when the city filled in with tract housing and most backyards got the same rectangle with a diving board, white plaster, one skimmer and a heater that has not fired in a decade. The honest answer is that the shell is often the best thing about it.

Pool Resurfacing & Pebble Finishes
Pool resurfacing in Fontana is almost never a wear problem. Plaster does not get walked off; it gets etched, dissolved, or buried under calcium, and the water in this part of the Inland Empire does all three.

Waterline Tile & Coping
Waterline tile is the one band of a Fontana pool that has to survive being wet, dry and baked several times a week. The level drops fast in July, sun and wind finish the job, and whatever the water was carrying stays behind as a chalky ring at eye level.

Pool Decks & Hardscape
Fontana Pool Builders builds pool decks and hardscape for Inland Empire heat, reflected glare, and soil movement. Decks here cook bare feet and fade cheap coatings fast.

Spa & Hot Tub Installation
A spa is what keeps a Fontana backyard in use from November through March, which covers most of the months the pool does not. That is the real argument for building one, and it is stronger than the usual hydrotherapy pitch.

Water Features & Tanning Ledges
This is the page where we argue against part of our own product. Moving water is the fastest way to lose water in Fontana, and a rock waterfall running eight hours a day through a hot windy week evaporates a serious volume of it.

LED Pool Lighting
Fontana Pool Builders installs LED pool lighting for hot Inland nights, dusty shoulder weeks, and family swim after extreme afternoons. Ultraviolet light and grit films cut output on open west yards faster than mild coastal catalogs admit.

Pool Automation & Smart Controls
Fontana Pool Builders installs pool automation for Inland Empire heat, Lytle Creek dust patterns, and busy family swim schedules. Pads cook on west exposures while Santa Ana weeks drive grit into cabinets and valve stems.

Pool Heaters & Heat Pumps
Fontana gets a long swim season without help, which changes what a heater is for. From late June into early September nobody needs one.

Variable-Speed Pumps & Filtration
Filtration in Fontana has to handle something most pool markets do not: several times a year the air itself is dirty. Santa Ana events lift fine alluvial dust off the wash and out of the foothills and lay it on the water in a sheet.

Saltwater Chlorination Systems
Saltwater chlorination is worth having in Fontana and it is oversold nearly everywhere, so here is the version with the caveats attached. A salt system makes its own chlorine from dissolved salt held around thirty-two hundred parts per million, roughly a tenth of seawater and below what most people can taste.

Pool Leak Detection & Crack Repair
Start with the part that saves people money: a Fontana pool losing water is not necessarily leaking. Surface evaporation under a hundred-degree afternoon with dry wind across it runs a quarter inch a day and more during a Santa Ana, and that is before splash-out, backwashing and an autofill nobody has looked at in three years.

Weekly Pool Cleaning & Maintenance
Weekly pool service in Fontana is not the job it is on the coast, and the difference shows in what the technician is actually fighting. Three things dominate: dust off the wash after any wind event, chlorine burned off fast by sun at the edge of the desert, and pH that refuses to sit still in water this hard while it aerates and evaporates all summer.

Green Pool Cleanup & Acid Washing
A green pool in Fontana is usually a story about one month, not one year. Heat like this pushes algae hard, and a pool that ran out of chlorine while the family was away in July can go from clear to opaque inside a week.

Pool Safety Fences & Covers
California does not leave this one to preference. Under the state pool safety law a new residential pool or spa must be equipped with at least two approved drowning-prevention features drawn from a defined list, and the building inspector confirms them before the permit closes.

Pool Demolition & Removal
Most people who call about removing a pool in Fontana are not calling about the pool. They are calling about a bill.
What Fontana Customers Say
The 3D design sold us. They talked us out of a deep end and into a bigger tanning ledge with bubblers, and they were completely right. It is where everyone sits all summer.
Warned us about cobble in the dig before we signed and the excavation landed inside the range they quoted. No change orders, which is not what I expected.
Filled in the old deep end during the remodel and added a shade structure over half the deck. The pool actually gets used in August now instead of just looking nice.
They explained the two safety features the state requires up front and built them in, so final inspection took ten minutes. Pebble finish and travertine coping look great.
Variable speed pump and automation set to run overnight on the off peak rate. The August bill was noticeably lower than the year before and the water is clearer.
Skimmer was cracked and losing water. They pressure tested every line first, opened one small piece of deck, fixed it and patched back cleanly. Straight, honest work.
Fontana Pool Builders is a pool contractor with over 15 years of experience designing, building, and servicing swimming pools for homeowners in Fontana, CA.
Our work covers custom gunite and shotcrete pool design and construction, pool remodeling and renovation, resurfacing and replastering, waterline tile and coping, pool decks and hardscape, spa and hot tub installation, tanning ledges and water features, LED pool lighting, pool automation, heaters and heat pumps, variable-speed pumps and cartridge or DE filtration, saltwater chlorination, leak detection and crack repair, green pool recovery, safety fencing and covers, and weekly cleaning.
We build with #3 and #4 rebar cages, wet-mix shotcrete and dry-mix gunite, pebble and quartz aggregate interiors, glass and porcelain waterline tile, travertine and cantilever coping, and salt cells sized from 20,000 to 60,000 gallons.
Design is where an Inland Empire pool is won or lost, because our lots are hot, often narrow, and sitting on ground that fights you.
Fontana sits on the Lytle Creek alluvial fan, which means sandy soil packed with river cobble and the occasional boulder that turns a routine dig into hammer and haul-off work, and it means we price excavation as an honest range rather than a hopeful flat figure.
With summer afternoons over 105 degrees, deck surface temperature, shade structures, and shallow lounging areas are design decisions rather than upgrades.
Fontana Pool Builders works under C-53 Swimming Pool and Spa Contractor licensing regulated by the Contractors State License Board, installs Title 20 compliant variable-speed equipment, designs the two California Swimming Pool Safety Act features into every project, is insured and bonded, belongs to the Pool & Hot Tub Alliance, and backs every build, remodel, and resurfacing job with a written workmanship warranty.
About Fontana Pool Builders in Fontana, CA
Fontana Pool Builders has spent over 15 years designing and building swimming pools across San Bernardino County and the eastern San Gabriel Valley, from Fontana and Rialto through Rancho Cucamonga, Ontario, and Upland and out to Pomona, Claremont, and Glendora.
Design is where we start on every project, because Inland Empire lots tend to be rectangular, walled, and hot, and the difference between a pool that gets used every day and one that sits looking nice is almost always a design decision made before anyone dug anything.
The ground here has opinions. Fontana sits on the Lytle Creek alluvial fan, so soil is typically sand and gravel carrying rounded river cobble, and some lots hit a layer that needs breaker work and extra haul-off. That is a real cost and we quote it as a range instead of pretending the dig is uniform.
Seismically, this is active country between the San Andreas, San Jacinto, and Cucamonga fault systems, which is one of several reasons California requires engineered steel schedules, flexible plumbing connections, and properly detailed expansion joints. Heat is the third factor: 105-degree afternoons make deck material, shade, and shallow lounging areas central to the design rather than optional extras.
Everything goes in under C-53 Swimming Pool and Spa Contractor licensing regulated by the Contractors State License Board, with licensed electrical and plumbing trades, Title 20 compliant variable-speed pumps, and the two required California Swimming Pool Safety Act features designed into the project rather than added the week before inspection.
Our service technicians hold the Certified Pool Operator credential from the Pool & Hot Tub Alliance, we are insured and bonded, and every construction, remodel, and resurfacing project carries a written workmanship warranty. Se habla espanol and the 3D design is free.
Recent Projects Across the Inland Empire
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Towns We Cover
Fontana Pool Builders serves Fontana, CA and surrounding communities including:
Frequently Asked Questions
How much does a custom pool cost in Fontana?
Most inground gunite pools in the Inland Empire land between the mid-$55,000s and the low $90,000s once decking, equipment, permits, and the safety features California requires are counted. What moves that number here is rarely the shell.
It is decking square footage, because in a climate with weeks over 105 degrees you want enough shaded, comfortable surface to actually use, and it is excavation, because cobble on the Lytle Creek fan can add real hours. We itemize both so you can see where the money goes and where to trim.
What is the cobble issue people mention with Fontana excavation?
Fontana sits on an alluvial fan built up by Lytle Creek washing material out of the San Gabriel Mountains over thousands of years, so a lot of local soil is sand and gravel packed with rounded river cobble and occasional boulders. Most digs are fine. Some hit a cobble layer that needs a breaker and extra haul-off.
It is not exotic and it is not a disaster, it is time and disposal, and we price it as a range after looking at your lot and any grading history rather than pretending it does not exist.
What are the two safety features California requires?
Since January 2018 the California Swimming Pool Safety Act has required new residential pools, and pools undergoing permitted remodels, to include at least two drowning-prevention features from an approved list. That list includes a compliant enclosure, removable mesh fencing, an ASTM F1346 safety cover, exit alarms on doors leading to the pool, self-closing and self-latching devices on those doors, and pool alarms. We design your two into the project during planning so final inspection is paperwork rather than a scramble.
How hot does it actually get, and does that change the design?
Fontana regularly runs 100 to 110 degrees through July, August, and into September, and that changes several decisions. Deck material matters, because gray broom concrete at those temperatures is unusable barefoot. Shade structures get used more than water features. A tanning ledge with bubblers is worth more here than a waterfall. And equipment sizing matters, because evaporation and chemical demand run high across a season that starts in April and does not really end until November.
Does hard water cause problems on Inland Empire pools?
Yes, and it is worth planning around rather than fighting. Local groundwater and imported supply both run high in calcium and dissolved solids, so scale builds on waterline tile, inside salt cells, and in heat exchangers faster than in soft-water regions. The practical answers are periodic bead blasting of the tile band, descaling the salt cell on a real schedule, and choosing a pebble or quartz interior over plain white plaster because both handle it better and last longer.
Do you service pools you did not build?
Most of our service and remodel work is on other people's pools, including plenty of 1980s and 1990s shells across Fontana, Rialto, Ontario, and Rancho Cucamonga that are structurally sound and simply need new plaster, new tile, and equipment from this decade. Design work, remodels, resurfacing, leak detection, and weekly service are all available whether or not our name is on the original permit.