San Marcos Fiberglass Pool Repair & Resurfacing 7-10 Day Install
From the river neighborhoods below San Marcos Springs to the new Hill Country subdivisions climbing the Balcones Escarpment, Hays County pools fight the same enemy — faulted Edwards limestone bedrock that shifts beneath thin rocky soils and cracks rigid plaster and gunite, while mineral-rich Central Texas water scales every porous surface.
Hexagon Fiberglass Pools specializes exclusively in fiberglass solutions engineered for San Marcos's limestone terrain, hard Edwards Aquifer water, and Central Texas temperature swings. Choose our proprietary HEXConvert™ system with comprehensive 10-year labor and material warranty, or premium Fibre Tech™ technology with industry-leading 25-year transferable warranty. Veterans receive a 5% discount on all projects.
Warranty Options
Installation
Military Discount
No obligation · Same-week assessments available · Veterans 5% discount applied at booking
Get Your Complimentary San Marcos Quote
No obligation. Free on-site assessment — one business-day response.
San Marcos Pool Services
Complete fiberglass solutions for every pool type
Fiberglass Pool Resurfacing
Replace deteriorating plaster or marcite on your San Marcos pool with permanent fiberglass — eliminating the surface failures that Edwards limestone settlement and mineral-rich Central Texas water cause on traditional materials.
Here's how our pool resurfacing process delivers a factory-smooth, non-porous finish from prep to cure.
- Permanent surface vs. recurring $6,000–$12,000 replastering
- Glass-smooth — never rough, stained, or scaled again
- Up to 45% reduction in chemical usage
- Algae-resistant non-porous surface
- Choice of 10-yr or 25-yr transferable warranty
Fiberglass Pool Conversion
Vinyl liner, gunite, concrete, or aging fiberglass — Hexagon converts all pool types to superior fiberglass without excavation, keeping your existing San Marcos pool structure.
- Vinyl liner → fiberglass — eliminates recurring liner replacement
- Gunite → fiberglass — stops limestone-settlement structural cracking
- Concrete → fiberglass — ends perpetual maintenance cycles
- No excavation — decking and landscaping untouched
Pool Gelcoat Repair
Already have a fiberglass pool? Gel coat fades, oxidizes, and develops spider cracks — especially under intense Central Texas UV and hard Edwards Aquifer water. Re-gelcoating restores factory-fresh condition without replacing the shell.
- Fraction of the cost of full replacement
- Color-matched or upgrade to a new color
- Restores UV protection and chemical resistance
- Addresses spider cracks and blistering
- Extends pool life by 15–20 years
Full Gel Coat Restoration
Widespread oxidation and fading refinished as one unified coat.
Oxidation & UV Fade
Chalky, porous finish restored — common under intense Texas sun.
Spider Crack Repair
Limestone-settlement cracks ground out and color-matched.
Osmotic Blister Repair
Blisters opened, laminate rebuilt, chemistry corrected.
Fiberglass Pool Repair
San Marcos's faulted limestone bedrock and hard Edwards Aquifer water create fiberglass-specific challenges that require specialist techniques. Hexagon diagnoses and resolves the root cause — not just the symptom.
When damage runs deeper than the surface, we can repair your fiberglass pool — cracks, bulges, and leaks alike.
- All repairs color-matched to existing finish
- Structural repairs address limestone-settlement root cause
- Most jobs completed in 3–5 days
- Up to 5-year warranty on structural repair work
Structural Crack Repair
Limestone-settlement cracks laminated and color-matched.
Skimmer Repair & Replace
Cracked housings resealed against water migration.
Fitting & Line Leaks
Pressure- and dye-tested; shell penetrations resealed.
Step, Bench & Ledge
Delaminated layers re-bonded and reinforced.
Why San Marcos Pools Benefit from Fiberglass
Why San Marcos Pools Benefit from Fiberglass
Edwards Aquifer Minerals
San Marcos sits on the Edwards Aquifer, and its mineral-rich Central Texas water deposits calcium scale and etches porous plaster — the same spring water that feeds the San Marcos River.
- Calcium buildup stains and scales porous plaster
- Non-porous fiberglass resists mineral deposits
- Up to 45% less chemical usage
- No recurring acid-washing cycle
Faulted Hill Country Bedrock
San Marcos sits on the Balcones Escarpment over faulted Edwards limestone with thin rocky soils. The rock shelf shifts and settles, cracking rigid plaster and gunite common in Hill Country pools.
- Limestone settlement cracks rigid plaster and gunite
- Fiberglass flexes with ground movement
- No cracking from bedrock shift
- Structural crack repair included in prep
100°F Summers, Winter Freezes
Central Texas swings from 100°F+ San Marcos summers to occasional hard winter freezes. The expansion-and-contraction stress fractures rigid surfaces; fiberglass flexes with it.
- Thermal cycling cracks plaster and concrete
- Fiberglass gel coat resists intense Texas UV
- Flexes through freeze-thaw without cracking
- Holds up across the long Central Texas pool season
Proud to Serve San Marcos Veterans
San Marcos and the Central Texas corridor are home to many veterans and active-duty families. We honor that service with a guaranteed 5% discount on every project — applied at booking, no paperwork battle.
- 5% veteran's discount — active duty, retired & surviving spouses
- Non-disruptive install — no demolition
- Same-week assessments for busy families
Our San Marcos Fiberglass Process
From Drain to Swim in Under 2 Weeks
Assessment & Drain
- Technician confirms system selection
- Pool drain coordinated on-site
- Water disposal per San Marcos municipal regulations
- HEXConvert™ or Fibre Tech™ confirmed
Surface Preparation
- Existing surface cleaned, etched, and profiled
- Limestone-settlement structural cracks resolved before application
- Landscaping and hardscape protected throughout
System Application
- Applied in multiple layers by certified technicians
- Hand-crafted to every contour — walls, floor, steps
- Quality checkpoints throughout
Cure & Inspection
- Cures under controlled conditions
- Central Texas summer heat accelerates the cure phase
- Full quality inspection before refill authorized
Refill & Warranty
- Pool refilled, water chemistry balanced
- Warranty documentation delivered
- HEXConvert™: 10-yr comprehensive — starts day one
- Fibre Tech™: 25-yr material — transfers with the property
No demolition required · Landscaping protected throughout · HOA documentation provided at completion
Why San Marcos Chooses Hexagon
Fiberglass specialists — meeting San Marcos's standard
Hill Country Limestone Specialists
- Edwards limestone and Balcones Escarpment expertise across San Marcos
- Experienced with the river neighborhoods, Texas State area & new Hill Country subdivisions
Full-Scale Capability
- Equipped for pools of every size and complexity
- Spa, water feature, and tanning ledge expertise
- Landscaping and hardscape protection protocol
Industry Recognition
- Texas Pool & Spa Association certified
- Certified Pool Operators on every project
- $2M liability insurance
Exclusive Technology
- HEXConvert™ proprietary to Hexagon
- Exclusive Fibre Tech™ materials
- Methods developed over 3 decades
- Factory direct quality assurance
Our San Marcos Service Area
Proudly serving San Marcos and surrounding areas within a 30-mile radius.
San Marcos Neighborhoods We Serve
Trusted by homeowners across San Marcos
Downtown & the River District
Texas State & Student-Rental Corridor
West & New Hill Country Subdivisions
Greater San Marcos & Hays County
All San Marcos neighborhoods covered
Every San Marcos neighborhood — from the river district below the springs to the new Hill Country subdivisions — receives the same quality standards, materials, and warranty protection. Veterans discount applied at booking, regardless of which part of the city you call home.
What Fiberglass Actually Costs You Over Time
San Marcos homeowners who switch to fiberglass save an average of $28,500 over 15 years compared to the traditional replaster cycle.
| Cost Item | Plaster (15 yrs) | Fiberglass (15 yrs) |
|---|---|---|
| Resurfacing / Replaster | $23,000–$31,0003 replasters | $0 |
| Annual Chemical Costs | $1,450–$1,900/yr | $700–$950/yr50% less |
| Algae Treatment & Cleanup | $450–$550/yr | $125–$175/yr |
| Surface Repairs | $1,300–$1,700 over life | Warranty covered |
| 15-Year Total Cost | $53,000–$70,000 | $28,000–$38,000 |
Estimates based on Hays County market averages. Actual savings vary by pool size and condition.
Average San Marcos Homeowner Saves
over 15 years by switching from plaster to fiberglass — one of the most cost-effective long-term decisions for your pool.
Calculate My SavingsFrequently Asked Fiberglass Pool Questions
Most pool resurfacing projects in San Marcos take 7-10 days from start to finish. Our Fibre Tech™ fiberglass system installs quickly with minimal disruption to your Hill Country property.
Yes, San Marcos sits on the Edwards Aquifer with mineral-rich spring water. This can cause calcium buildup and etching in traditional plaster. Our non-porous fiberglass surface resists mineral deposits and staining.
Absolutely. San Marcos' limestone bedrock can shift, causing traditional plaster to crack. Our fiberglass flexes with ground movement, preventing the cracking common in Hill Country pools.
Yes, we regularly serve San Marcos and the Hill Country. The drive from our service area allows us to provide the same premium service and warranty coverage that Austin-area customers receive.
25-year manufacturer warranty on the fiberglass surface, plus 2-year workmanship warranty. This provides long-term protection for your San Marcos pool investment.
While initial investment is higher, fiberglass eliminates the 5-7 year resurfacing cycle. Over 20 years, San Marcos homeowners save significantly while enjoying lower maintenance costs.
Yes, we work throughout San Marcos including properties near the river and springs. Our fiberglass surface is ideal for areas with high water tables and mineral-rich groundwater.
Popular choices include sapphire blue (complements Hill Country views), crystal white, and aquamarine. All finishes are UV-resistant and maintain their appearance for decades. White and light blue are our standard finishes; other premium colors are available at an upcharge.
Investment varies by pool size and condition. Most San Marcos projects range from $9,000-$20,000. Call (972) 789-2983 for a free assessment and detailed quote.
HEXConvert™ Resurfacing is our proprietary fiberglass resurfacing system. We bond a multi-layer fiberglass-and-gelcoat surface over your existing concrete, gunite, or plaster shell to create one continuous, non-porous, factory-smooth finish. Unlike plaster — which has to be redone every 7–10 years — a HEXConvert™ surface is a one-time installation backed by a 10- or 25-year warranty.
Re-Gel is the gelcoat-renewal stage of the HEXConvert™ system. We apply a fresh, color-matched gelcoat over the fiberglass to restore the smooth, glossy finish and protect it against UV, pool chemicals, and everyday wear — bringing an existing fiberglass surface back to like-new condition without a full rebuild.
Fiberglass lasts 25+ years vs 7-10 for plaster, reduces chemical usage by 75%, prevents algae growth, and never needs acid washing.
Our 25-year warranty covers the fiberglass shell against structural defects, delamination, blistering, and fading. It's transferable to future homeowners.
Both deliver the same smooth, permanent fiberglass surface — the difference is the warranty. HEXConvert™ is our proprietary system with a 10-year comprehensive (labor and materials) warranty and the fastest install. Fibre Tech™ carries a 25-year transferable material warranty, ideal if you may sell since it follows the home. We'll help you choose at the consultation.
Yes! Pool conversion works excellently for old or damaged pools. In fact, conversion is often the best solution for aging pools with cracks, surface deterioration, or structural issues. Our Fibre Tech™ system bonds directly to your existing concrete/gunite structure and can bridge minor cracks while providing structural reinforcement. We've successfully converted pools that are 30+ years old. During your free consultation, we'll assess your pool's condition and recommend the best approach for your specific situation.
Yes! Our Fibre Tech™ technology is custom-molded to fit any pool shape and size, from standard rectangles to custom freeform designs.
Your pool will look better! You can choose from various colors and the smooth gel-coat surface is more attractive than weathered plaster.
Absolutely! Fiberglass is completely salt-resistant, unlike concrete which can deteriorate from salt exposure.
Usually no. Most existing equipment works perfectly with fiberglass. We'll assess during consultation and recommend upgrades only if beneficial.
Save $1,500 on Your Pool Conversion
Book your San Marcos fiberglass assessment before July 4, 2026
Exclusive to San Marcos fiberglass projects. Limited appointments available.
Your Home Deserves a Pool Surface That Matches It
Choose HEXConvert™ (10-year) or Fibre Tech™ (25-year transferable) — Hill Country limestone-engineered, premium fiberglass for every San Marcos neighborhood. Veterans 5% discount always applied.
Hexagon Fiberglass Pools · San Marcos's Pool Fiberglass Specialists · HEXConvert™ & Fibre Tech™ Certified · Veterans 5% Discount · $2M Insurance